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 * daniel@veillard.com
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
xmlTreeErrMemory(const char * extra)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
xmlTreeErr(int code,xmlNodePtr node,const char * extra)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
xmlGetEntityFromDtd(const xmlDtd * dtd,const xmlChar * name)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
xmlGetParameterEntityFromDtd(const xmlDtd * dtd,const xmlChar * name)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 *
xmlBuildQName(const xmlChar * ncname,const xmlChar * prefix,xmlChar * memory,int len)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 *
xmlSplitQName2(const xmlChar * name,xmlChar ** prefix)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 *
xmlSplitQName3(const xmlChar * name,int * len)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
xmlValidateNCName(const xmlChar * value,int space)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
xmlValidateQName(const xmlChar * value,int space)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
xmlValidateName(const xmlChar * value,int space)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
xmlValidateNMToken(const xmlChar * value,int space)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
xmlSetBufferAllocationScheme(xmlBufferAllocationScheme scheme)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
xmlGetBufferAllocationScheme(void)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
xmlNewNs(xmlNodePtr node,const xmlChar * href,const xmlChar * prefix)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
xmlSetNs(xmlNodePtr node,xmlNsPtr ns)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
xmlFreeNs(xmlNsPtr cur)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
xmlFreeNsList(xmlNsPtr cur)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
xmlNewDtd(xmlDocPtr doc,const xmlChar * name,const xmlChar * ExternalID,const xmlChar * SystemID)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
xmlGetIntSubset(const xmlDoc * doc)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
xmlCreateIntSubset(xmlDocPtr doc,const xmlChar * name,const xmlChar * ExternalID,const xmlChar * SystemID)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
xmlFreeDtd(xmlDtdPtr cur)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
xmlNewDoc(const xmlChar * version)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
xmlFreeDoc(xmlDocPtr cur)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
xmlStringLenGetNodeList(const xmlDoc * doc,const xmlChar * value,int len)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 ret = node;
1455 } else {
1456 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
xmlStringGetNodeList(const xmlDoc * doc,const xmlChar * value)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 ret = node;
1643 } else {
1644 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 *
xmlNodeListGetString(xmlDocPtr doc,const xmlNode * list,int inLine)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 *
xmlNodeListGetRawString(const xmlDoc * doc,const xmlNode * list,int inLine)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
xmlNewPropInternal(xmlNodePtr node,xmlNsPtr ns,const xmlChar * name,const xmlChar * value,int eatname)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
xmlNewProp(xmlNodePtr node,const xmlChar * name,const xmlChar * value)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
xmlNewNsProp(xmlNodePtr node,xmlNsPtr ns,const xmlChar * name,const xmlChar * value)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
xmlNewNsPropEatName(xmlNodePtr node,xmlNsPtr ns,xmlChar * name,const xmlChar * value)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
xmlNewDocProp(xmlDocPtr doc,const xmlChar * name,const xmlChar * value)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
xmlFreePropList(xmlAttrPtr cur)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
xmlFreeProp(xmlAttrPtr cur)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
xmlRemoveProp(xmlAttrPtr cur)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
xmlNewDocPI(xmlDocPtr doc,const xmlChar * name,const xmlChar * content)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
xmlNewPI(const xmlChar * name,const xmlChar * content)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
xmlNewNode(xmlNsPtr ns,const xmlChar * name)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
xmlNewNodeEatName(xmlNsPtr ns,xmlChar * name)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
xmlNewDocNode(xmlDocPtr doc,xmlNsPtr ns,const xmlChar * name,const xmlChar * content)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
xmlNewDocNodeEatName(xmlDocPtr doc,xmlNsPtr ns,xmlChar * name,const xmlChar * content)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
xmlNewDocRawNode(xmlDocPtr doc,xmlNsPtr ns,const xmlChar * name,const xmlChar * content)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
xmlNewDocFragment(xmlDocPtr doc)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
xmlNewText(const xmlChar * content)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
xmlNewTextChild(xmlNodePtr parent,xmlNsPtr ns,const xmlChar * name,const xmlChar * content)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
xmlNewCharRef(xmlDocPtr doc,const xmlChar * name)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
xmlNewReference(const xmlDoc * doc,const xmlChar * name)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
xmlNewDocText(const xmlDoc * doc,const xmlChar * content)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
xmlNewTextLen(const xmlChar * content,int len)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
xmlNewDocTextLen(xmlDocPtr doc,const xmlChar * content,int len)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
xmlNewComment(const xmlChar * content)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
xmlNewCDataBlock(xmlDocPtr doc,const xmlChar * content,int len)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
xmlNewDocComment(xmlDocPtr doc,const xmlChar * content)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
xmlSetTreeDoc(xmlNodePtr tree,xmlDocPtr doc)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 prop->doc = doc;
2803 xmlSetListDoc(prop->children, doc);
2804 prop = prop->next;
2805 }
2806 }
2807 if (tree->children != NULL)
2808 xmlSetListDoc(tree->children, doc);
2809 tree->doc = doc;
2810 }
2811 }
2812
2813 /**
2814 * xmlSetListDoc:
2815 * @list: the first element
2816 * @doc: the document
2817 *
2818 * update all nodes in the list to point to the right document
2819 */
2820 void
xmlSetListDoc(xmlNodePtr list,xmlDocPtr doc)2821 xmlSetListDoc(xmlNodePtr list, xmlDocPtr doc) {
2822 xmlNodePtr cur;
2823
2824 if ((list == NULL) || (list->type == XML_NAMESPACE_DECL))
2825 return;
2826 cur = list;
2827 while (cur != NULL) {
2828 if (cur->doc != doc)
2829 xmlSetTreeDoc(cur, doc);
2830 cur = cur->next;
2831 }
2832 }
2833
2834 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
2835 /**
2836 * xmlNewChild:
2837 * @parent: the parent node
2838 * @ns: a namespace if any
2839 * @name: the name of the child
2840 * @content: the XML content of the child if any.
2841 *
2842 * Creation of a new child element, added at the end of @parent children list.
2843 * @ns and @content parameters are optional (NULL). If @ns is NULL, the newly
2844 * created element inherits the namespace of @parent. If @content is non NULL,
2845 * a child list containing the TEXTs and ENTITY_REFs node will be created.
2846 * NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity
2847 * references. XML special chars must be escaped first by using
2848 * xmlEncodeEntitiesReentrant(), or xmlNewTextChild() should be used.
2849 *
2850 * Returns a pointer to the new node object.
2851 */
2852 xmlNodePtr
xmlNewChild(xmlNodePtr parent,xmlNsPtr ns,const xmlChar * name,const xmlChar * content)2853 xmlNewChild(xmlNodePtr parent, xmlNsPtr ns,
2854 const xmlChar *name, const xmlChar *content) {
2855 xmlNodePtr cur, prev;
2856
2857 if (parent == NULL) {
2858 #ifdef DEBUG_TREE
2859 xmlGenericError(xmlGenericErrorContext,
2860 "xmlNewChild : parent == NULL\n");
2861 #endif
2862 return(NULL);
2863 }
2864
2865 if (name == NULL) {
2866 #ifdef DEBUG_TREE
2867 xmlGenericError(xmlGenericErrorContext,
2868 "xmlNewChild : name == NULL\n");
2869 #endif
2870 return(NULL);
2871 }
2872
2873 /*
2874 * Allocate a new node
2875 */
2876 if (parent->type == XML_ELEMENT_NODE) {
2877 if (ns == NULL)
2878 cur = xmlNewDocNode(parent->doc, parent->ns, name, content);
2879 else
2880 cur = xmlNewDocNode(parent->doc, ns, name, content);
2881 } else if ((parent->type == XML_DOCUMENT_NODE) ||
2882 (parent->type == XML_HTML_DOCUMENT_NODE)) {
2883 if (ns == NULL)
2884 cur = xmlNewDocNode((xmlDocPtr) parent, NULL, name, content);
2885 else
2886 cur = xmlNewDocNode((xmlDocPtr) parent, ns, name, content);
2887 } else if (parent->type == XML_DOCUMENT_FRAG_NODE) {
2888 cur = xmlNewDocNode( parent->doc, ns, name, content);
2889 } else {
2890 return(NULL);
2891 }
2892 if (cur == NULL) return(NULL);
2893
2894 /*
2895 * add the new element at the end of the children list.
2896 */
2897 cur->type = XML_ELEMENT_NODE;
2898 cur->parent = parent;
2899 cur->doc = parent->doc;
2900 if (parent->children == NULL) {
2901 parent->children = cur;
2902 parent->last = cur;
2903 } else {
2904 prev = parent->last;
2905 prev->next = cur;
2906 cur->prev = prev;
2907 parent->last = cur;
2908 }
2909
2910 return(cur);
2911 }
2912 #endif /* LIBXML_TREE_ENABLED */
2913
2914 /**
2915 * xmlAddPropSibling:
2916 * @prev: the attribute to which @prop is added after
2917 * @cur: the base attribute passed to calling function
2918 * @prop: the new attribute
2919 *
2920 * Add a new attribute after @prev using @cur as base attribute.
2921 * When inserting before @cur, @prev is passed as @cur->prev.
2922 * When inserting after @cur, @prev is passed as @cur.
2923 * If an existing attribute is found it is detroyed prior to adding @prop.
2924 *
2925 * Returns the attribute being inserted or NULL in case of error.
2926 */
2927 static xmlNodePtr
xmlAddPropSibling(xmlNodePtr prev,xmlNodePtr cur,xmlNodePtr prop)2928 xmlAddPropSibling(xmlNodePtr prev, xmlNodePtr cur, xmlNodePtr prop) {
2929 xmlAttrPtr attr;
2930
2931 if ((cur == NULL) || (cur->type != XML_ATTRIBUTE_NODE) ||
2932 (prop == NULL) || (prop->type != XML_ATTRIBUTE_NODE) ||
2933 ((prev != NULL) && (prev->type != XML_ATTRIBUTE_NODE)))
2934 return(NULL);
2935
2936 /* check if an attribute with the same name exists */
2937 if (prop->ns == NULL)
2938 attr = xmlHasNsProp(cur->parent, prop->name, NULL);
2939 else
2940 attr = xmlHasNsProp(cur->parent, prop->name, prop->ns->href);
2941
2942 if (prop->doc != cur->doc) {
2943 xmlSetTreeDoc(prop, cur->doc);
2944 }
2945 prop->parent = cur->parent;
2946 prop->prev = prev;
2947 if (prev != NULL) {
2948 prop->next = prev->next;
2949 prev->next = prop;
2950 if (prop->next)
2951 prop->next->prev = prop;
2952 } else {
2953 prop->next = cur;
2954 cur->prev = prop;
2955 }
2956 if (prop->prev == NULL && prop->parent != NULL)
2957 prop->parent->properties = (xmlAttrPtr) prop;
2958 if ((attr != NULL) && (attr->type != XML_ATTRIBUTE_DECL)) {
2959 /* different instance, destroy it (attributes must be unique) */
2960 xmlRemoveProp((xmlAttrPtr) attr);
2961 }
2962 return prop;
2963 }
2964
2965 /**
2966 * xmlAddNextSibling:
2967 * @cur: the child node
2968 * @elem: the new node
2969 *
2970 * Add a new node @elem as the next sibling of @cur
2971 * If the new node was already inserted in a document it is
2972 * first unlinked from its existing context.
2973 * As a result of text merging @elem may be freed.
2974 * If the new node is ATTRIBUTE, it is added into properties instead of children.
2975 * If there is an attribute with equal name, it is first destroyed.
2976 *
2977 * Returns the new node or NULL in case of error.
2978 */
2979 xmlNodePtr
xmlAddNextSibling(xmlNodePtr cur,xmlNodePtr elem)2980 xmlAddNextSibling(xmlNodePtr cur, xmlNodePtr elem) {
2981 if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {
2982 #ifdef DEBUG_TREE
2983 xmlGenericError(xmlGenericErrorContext,
2984 "xmlAddNextSibling : cur == NULL\n");
2985 #endif
2986 return(NULL);
2987 }
2988 if ((elem == NULL) || (elem->type == XML_NAMESPACE_DECL)) {
2989 #ifdef DEBUG_TREE
2990 xmlGenericError(xmlGenericErrorContext,
2991 "xmlAddNextSibling : elem == NULL\n");
2992 #endif
2993 return(NULL);
2994 }
2995
2996 if (cur == elem) {
2997 #ifdef DEBUG_TREE
2998 xmlGenericError(xmlGenericErrorContext,
2999 "xmlAddNextSibling : cur == elem\n");
3000 #endif
3001 return(NULL);
3002 }
3003
3004 xmlUnlinkNode(elem);
3005
3006 if (elem->type == XML_TEXT_NODE) {
3007 if (cur->type == XML_TEXT_NODE) {
3008 xmlNodeAddContent(cur, elem->content);
3009 xmlFreeNode(elem);
3010 return(cur);
3011 }
3012 if ((cur->next != NULL) && (cur->next->type == XML_TEXT_NODE) &&
3013 (cur->name == cur->next->name)) {
3014 xmlChar *tmp;
3015
3016 tmp = xmlStrdup(elem->content);
3017 tmp = xmlStrcat(tmp, cur->next->content);
3018 xmlNodeSetContent(cur->next, tmp);
3019 xmlFree(tmp);
3020 xmlFreeNode(elem);
3021 return(cur->next);
3022 }
3023 } else if (elem->type == XML_ATTRIBUTE_NODE) {
3024 return xmlAddPropSibling(cur, cur, elem);
3025 }
3026
3027 if (elem->doc != cur->doc) {
3028 xmlSetTreeDoc(elem, cur->doc);
3029 }
3030 elem->parent = cur->parent;
3031 elem->prev = cur;
3032 elem->next = cur->next;
3033 cur->next = elem;
3034 if (elem->next != NULL)
3035 elem->next->prev = elem;
3036 if ((elem->parent != NULL) && (elem->parent->last == cur))
3037 elem->parent->last = elem;
3038 return(elem);
3039 }
3040
3041 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_HTML_ENABLED) || \
3042 defined(LIBXML_SCHEMAS_ENABLED) || defined(LIBXML_XINCLUDE_ENABLED)
3043 /**
3044 * xmlAddPrevSibling:
3045 * @cur: the child node
3046 * @elem: the new node
3047 *
3048 * Add a new node @elem as the previous sibling of @cur
3049 * merging adjacent TEXT nodes (@elem may be freed)
3050 * If the new node was already inserted in a document it is
3051 * first unlinked from its existing context.
3052 * If the new node is ATTRIBUTE, it is added into properties instead of children.
3053 * If there is an attribute with equal name, it is first destroyed.
3054 *
3055 * Returns the new node or NULL in case of error.
3056 */
3057 xmlNodePtr
xmlAddPrevSibling(xmlNodePtr cur,xmlNodePtr elem)3058 xmlAddPrevSibling(xmlNodePtr cur, xmlNodePtr elem) {
3059 if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {
3060 #ifdef DEBUG_TREE
3061 xmlGenericError(xmlGenericErrorContext,
3062 "xmlAddPrevSibling : cur == NULL\n");
3063 #endif
3064 return(NULL);
3065 }
3066 if ((elem == NULL) || (elem->type == XML_NAMESPACE_DECL)) {
3067 #ifdef DEBUG_TREE
3068 xmlGenericError(xmlGenericErrorContext,
3069 "xmlAddPrevSibling : elem == NULL\n");
3070 #endif
3071 return(NULL);
3072 }
3073
3074 if (cur == elem) {
3075 #ifdef DEBUG_TREE
3076 xmlGenericError(xmlGenericErrorContext,
3077 "xmlAddPrevSibling : cur == elem\n");
3078 #endif
3079 return(NULL);
3080 }
3081
3082 xmlUnlinkNode(elem);
3083
3084 if (elem->type == XML_TEXT_NODE) {
3085 if (cur->type == XML_TEXT_NODE) {
3086 xmlChar *tmp;
3087
3088 tmp = xmlStrdup(elem->content);
3089 tmp = xmlStrcat(tmp, cur->content);
3090 xmlNodeSetContent(cur, tmp);
3091 xmlFree(tmp);
3092 xmlFreeNode(elem);
3093 return(cur);
3094 }
3095 if ((cur->prev != NULL) && (cur->prev->type == XML_TEXT_NODE) &&
3096 (cur->name == cur->prev->name)) {
3097 xmlNodeAddContent(cur->prev, elem->content);
3098 xmlFreeNode(elem);
3099 return(cur->prev);
3100 }
3101 } else if (elem->type == XML_ATTRIBUTE_NODE) {
3102 return xmlAddPropSibling(cur->prev, cur, elem);
3103 }
3104
3105 if (elem->doc != cur->doc) {
3106 xmlSetTreeDoc(elem, cur->doc);
3107 }
3108 elem->parent = cur->parent;
3109 elem->next = cur;
3110 elem->prev = cur->prev;
3111 cur->prev = elem;
3112 if (elem->prev != NULL)
3113 elem->prev->next = elem;
3114 if ((elem->parent != NULL) && (elem->parent->children == cur)) {
3115 elem->parent->children = elem;
3116 }
3117 return(elem);
3118 }
3119 #endif /* LIBXML_TREE_ENABLED */
3120
3121 /**
3122 * xmlAddSibling:
3123 * @cur: the child node
3124 * @elem: the new node
3125 *
3126 * Add a new element @elem to the list of siblings of @cur
3127 * merging adjacent TEXT nodes (@elem may be freed)
3128 * If the new element was already inserted in a document it is
3129 * first unlinked from its existing context.
3130 *
3131 * Returns the new element or NULL in case of error.
3132 */
3133 xmlNodePtr
xmlAddSibling(xmlNodePtr cur,xmlNodePtr elem)3134 xmlAddSibling(xmlNodePtr cur, xmlNodePtr elem) {
3135 xmlNodePtr parent;
3136
3137 if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {
3138 #ifdef DEBUG_TREE
3139 xmlGenericError(xmlGenericErrorContext,
3140 "xmlAddSibling : cur == NULL\n");
3141 #endif
3142 return(NULL);
3143 }
3144
3145 if ((elem == NULL) || (elem->type == XML_NAMESPACE_DECL)) {
3146 #ifdef DEBUG_TREE
3147 xmlGenericError(xmlGenericErrorContext,
3148 "xmlAddSibling : elem == NULL\n");
3149 #endif
3150 return(NULL);
3151 }
3152
3153 if (cur == elem) {
3154 #ifdef DEBUG_TREE
3155 xmlGenericError(xmlGenericErrorContext,
3156 "xmlAddSibling : cur == elem\n");
3157 #endif
3158 return(NULL);
3159 }
3160
3161 /*
3162 * Constant time is we can rely on the ->parent->last to find
3163 * the last sibling.
3164 */
3165 if ((cur->type != XML_ATTRIBUTE_NODE) && (cur->parent != NULL) &&
3166 (cur->parent->children != NULL) &&
3167 (cur->parent->last != NULL) &&
3168 (cur->parent->last->next == NULL)) {
3169 cur = cur->parent->last;
3170 } else {
3171 while (cur->next != NULL) cur = cur->next;
3172 }
3173
3174 xmlUnlinkNode(elem);
3175
3176 if ((cur->type == XML_TEXT_NODE) && (elem->type == XML_TEXT_NODE) &&
3177 (cur->name == elem->name)) {
3178 xmlNodeAddContent(cur, elem->content);
3179 xmlFreeNode(elem);
3180 return(cur);
3181 } else if (elem->type == XML_ATTRIBUTE_NODE) {
3182 return xmlAddPropSibling(cur, cur, elem);
3183 }
3184
3185 if (elem->doc != cur->doc) {
3186 xmlSetTreeDoc(elem, cur->doc);
3187 }
3188 parent = cur->parent;
3189 elem->prev = cur;
3190 elem->next = NULL;
3191 elem->parent = parent;
3192 cur->next = elem;
3193 if (parent != NULL)
3194 parent->last = elem;
3195
3196 return(elem);
3197 }
3198
3199 /**
3200 * xmlAddChildList:
3201 * @parent: the parent node
3202 * @cur: the first node in the list
3203 *
3204 * Add a list of node at the end of the child list of the parent
3205 * merging adjacent TEXT nodes (@cur may be freed)
3206 *
3207 * Returns the last child or NULL in case of error.
3208 */
3209 xmlNodePtr
xmlAddChildList(xmlNodePtr parent,xmlNodePtr cur)3210 xmlAddChildList(xmlNodePtr parent, xmlNodePtr cur) {
3211 xmlNodePtr prev;
3212
3213 if ((parent == NULL) || (parent->type == XML_NAMESPACE_DECL)) {
3214 #ifdef DEBUG_TREE
3215 xmlGenericError(xmlGenericErrorContext,
3216 "xmlAddChildList : parent == NULL\n");
3217 #endif
3218 return(NULL);
3219 }
3220
3221 if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {
3222 #ifdef DEBUG_TREE
3223 xmlGenericError(xmlGenericErrorContext,
3224 "xmlAddChildList : child == NULL\n");
3225 #endif
3226 return(NULL);
3227 }
3228
3229 if ((cur->doc != NULL) && (parent->doc != NULL) &&
3230 (cur->doc != parent->doc)) {
3231 #ifdef DEBUG_TREE
3232 xmlGenericError(xmlGenericErrorContext,
3233 "Elements moved to a different document\n");
3234 #endif
3235 }
3236
3237 /*
3238 * add the first element at the end of the children list.
3239 */
3240
3241 if (parent->children == NULL) {
3242 parent->children = cur;
3243 } else {
3244 /*
3245 * If cur and parent->last both are TEXT nodes, then merge them.
3246 */
3247 if ((cur->type == XML_TEXT_NODE) &&
3248 (parent->last->type == XML_TEXT_NODE) &&
3249 (cur->name == parent->last->name)) {
3250 xmlNodeAddContent(parent->last, cur->content);
3251 /*
3252 * if it's the only child, nothing more to be done.
3253 */
3254 if (cur->next == NULL) {
3255 xmlFreeNode(cur);
3256 return(parent->last);
3257 }
3258 prev = cur;
3259 cur = cur->next;
3260 xmlFreeNode(prev);
3261 }
3262 prev = parent->last;
3263 prev->next = cur;
3264 cur->prev = prev;
3265 }
3266 while (cur->next != NULL) {
3267 cur->parent = parent;
3268 if (cur->doc != parent->doc) {
3269 xmlSetTreeDoc(cur, parent->doc);
3270 }
3271 cur = cur->next;
3272 }
3273 cur->parent = parent;
3274 /* the parent may not be linked to a doc ! */
3275 if (cur->doc != parent->doc) {
3276 xmlSetTreeDoc(cur, parent->doc);
3277 }
3278 parent->last = cur;
3279
3280 return(cur);
3281 }
3282
3283 /**
3284 * xmlAddChild:
3285 * @parent: the parent node
3286 * @cur: the child node
3287 *
3288 * Add a new node to @parent, at the end of the child (or property) list
3289 * merging adjacent TEXT nodes (in which case @cur is freed)
3290 * If the new node is ATTRIBUTE, it is added into properties instead of children.
3291 * If there is an attribute with equal name, it is first destroyed.
3292 *
3293 * Returns the child or NULL in case of error.
3294 */
3295 xmlNodePtr
xmlAddChild(xmlNodePtr parent,xmlNodePtr cur)3296 xmlAddChild(xmlNodePtr parent, xmlNodePtr cur) {
3297 xmlNodePtr prev;
3298
3299 if ((parent == NULL) || (parent->type == XML_NAMESPACE_DECL)) {
3300 #ifdef DEBUG_TREE
3301 xmlGenericError(xmlGenericErrorContext,
3302 "xmlAddChild : parent == NULL\n");
3303 #endif
3304 return(NULL);
3305 }
3306
3307 if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {
3308 #ifdef DEBUG_TREE
3309 xmlGenericError(xmlGenericErrorContext,
3310 "xmlAddChild : child == NULL\n");
3311 #endif
3312 return(NULL);
3313 }
3314
3315 if (parent == cur) {
3316 #ifdef DEBUG_TREE
3317 xmlGenericError(xmlGenericErrorContext,
3318 "xmlAddChild : parent == cur\n");
3319 #endif
3320 return(NULL);
3321 }
3322 /*
3323 * If cur is a TEXT node, merge its content with adjacent TEXT nodes
3324 * cur is then freed.
3325 */
3326 if (cur->type == XML_TEXT_NODE) {
3327 if ((parent->type == XML_TEXT_NODE) &&
3328 (parent->content != NULL) &&
3329 (parent->name == cur->name)) {
3330 xmlNodeAddContent(parent, cur->content);
3331 xmlFreeNode(cur);
3332 return(parent);
3333 }
3334 if ((parent->last != NULL) && (parent->last->type == XML_TEXT_NODE) &&
3335 (parent->last->name == cur->name) &&
3336 (parent->last != cur)) {
3337 xmlNodeAddContent(parent->last, cur->content);
3338 xmlFreeNode(cur);
3339 return(parent->last);
3340 }
3341 }
3342
3343 /*
3344 * add the new element at the end of the children list.
3345 */
3346 prev = cur->parent;
3347 cur->parent = parent;
3348 if (cur->doc != parent->doc) {
3349 xmlSetTreeDoc(cur, parent->doc);
3350 }
3351 /* this check prevents a loop on tree-traversions if a developer
3352 * tries to add a node to its parent multiple times
3353 */
3354 if (prev == parent)
3355 return(cur);
3356
3357 /*
3358 * Coalescing
3359 */
3360 if ((parent->type == XML_TEXT_NODE) &&
3361 (parent->content != NULL) &&
3362 (parent != cur)) {
3363 xmlNodeAddContent(parent, cur->content);
3364 xmlFreeNode(cur);
3365 return(parent);
3366 }
3367 if (cur->type == XML_ATTRIBUTE_NODE) {
3368 if (parent->type != XML_ELEMENT_NODE)
3369 return(NULL);
3370 if (parent->properties != NULL) {
3371 /* check if an attribute with the same name exists */
3372 xmlAttrPtr lastattr;
3373
3374 if (cur->ns == NULL)
3375 lastattr = xmlHasNsProp(parent, cur->name, NULL);
3376 else
3377 lastattr = xmlHasNsProp(parent, cur->name, cur->ns->href);
3378 if ((lastattr != NULL) && (lastattr != (xmlAttrPtr) cur) && (lastattr->type != XML_ATTRIBUTE_DECL)) {
3379 /* different instance, destroy it (attributes must be unique) */
3380 xmlUnlinkNode((xmlNodePtr) lastattr);
3381 xmlFreeProp(lastattr);
3382 }
3383 if (lastattr == (xmlAttrPtr) cur)
3384 return(cur);
3385
3386 }
3387 if (parent->properties == NULL) {
3388 parent->properties = (xmlAttrPtr) cur;
3389 } else {
3390 /* find the end */
3391 xmlAttrPtr lastattr = parent->properties;
3392 while (lastattr->next != NULL) {
3393 lastattr = lastattr->next;
3394 }
3395 lastattr->next = (xmlAttrPtr) cur;
3396 ((xmlAttrPtr) cur)->prev = lastattr;
3397 }
3398 } else {
3399 if (parent->children == NULL) {
3400 parent->children = cur;
3401 parent->last = cur;
3402 } else {
3403 prev = parent->last;
3404 prev->next = cur;
3405 cur->prev = prev;
3406 parent->last = cur;
3407 }
3408 }
3409 return(cur);
3410 }
3411
3412 /**
3413 * xmlGetLastChild:
3414 * @parent: the parent node
3415 *
3416 * Search the last child of a node.
3417 * Returns the last child or NULL if none.
3418 */
3419 xmlNodePtr
xmlGetLastChild(const xmlNode * parent)3420 xmlGetLastChild(const xmlNode *parent) {
3421 if ((parent == NULL) || (parent->type == XML_NAMESPACE_DECL)) {
3422 #ifdef DEBUG_TREE
3423 xmlGenericError(xmlGenericErrorContext,
3424 "xmlGetLastChild : parent == NULL\n");
3425 #endif
3426 return(NULL);
3427 }
3428 return(parent->last);
3429 }
3430
3431 #ifdef LIBXML_TREE_ENABLED
3432 /*
3433 * 5 interfaces from DOM ElementTraversal
3434 */
3435
3436 /**
3437 * xmlChildElementCount:
3438 * @parent: the parent node
3439 *
3440 * Finds the current number of child nodes of that element which are
3441 * element nodes.
3442 * Note the handling of entities references is different than in
3443 * the W3C DOM element traversal spec since we don't have back reference
3444 * from entities content to entities references.
3445 *
3446 * Returns the count of element child or 0 if not available
3447 */
3448 unsigned long
xmlChildElementCount(xmlNodePtr parent)3449 xmlChildElementCount(xmlNodePtr parent) {
3450 unsigned long ret = 0;
3451 xmlNodePtr cur = NULL;
3452
3453 if (parent == NULL)
3454 return(0);
3455 switch (parent->type) {
3456 case XML_ELEMENT_NODE:
3457 case XML_ENTITY_NODE:
3458 case XML_DOCUMENT_NODE:
3459 case XML_DOCUMENT_FRAG_NODE:
3460 case XML_HTML_DOCUMENT_NODE:
3461 cur = parent->children;
3462 break;
3463 default:
3464 return(0);
3465 }
3466 while (cur != NULL) {
3467 if (cur->type == XML_ELEMENT_NODE)
3468 ret++;
3469 cur = cur->next;
3470 }
3471 return(ret);
3472 }
3473
3474 /**
3475 * xmlFirstElementChild:
3476 * @parent: the parent node
3477 *
3478 * Finds the first child node of that element which is a Element node
3479 * Note the handling of entities references is different than in
3480 * the W3C DOM element traversal spec since we don't have back reference
3481 * from entities content to entities references.
3482 *
3483 * Returns the first element child or NULL if not available
3484 */
3485 xmlNodePtr
xmlFirstElementChild(xmlNodePtr parent)3486 xmlFirstElementChild(xmlNodePtr parent) {
3487 xmlNodePtr cur = NULL;
3488
3489 if (parent == NULL)
3490 return(NULL);
3491 switch (parent->type) {
3492 case XML_ELEMENT_NODE:
3493 case XML_ENTITY_NODE:
3494 case XML_DOCUMENT_NODE:
3495 case XML_DOCUMENT_FRAG_NODE:
3496 case XML_HTML_DOCUMENT_NODE:
3497 cur = parent->children;
3498 break;
3499 default:
3500 return(NULL);
3501 }
3502 while (cur != NULL) {
3503 if (cur->type == XML_ELEMENT_NODE)
3504 return(cur);
3505 cur = cur->next;
3506 }
3507 return(NULL);
3508 }
3509
3510 /**
3511 * xmlLastElementChild:
3512 * @parent: the parent node
3513 *
3514 * Finds the last child node of that element which is a Element node
3515 * Note the handling of entities references is different than in
3516 * the W3C DOM element traversal spec since we don't have back reference
3517 * from entities content to entities references.
3518 *
3519 * Returns the last element child or NULL if not available
3520 */
3521 xmlNodePtr
xmlLastElementChild(xmlNodePtr parent)3522 xmlLastElementChild(xmlNodePtr parent) {
3523 xmlNodePtr cur = NULL;
3524
3525 if (parent == NULL)
3526 return(NULL);
3527 switch (parent->type) {
3528 case XML_ELEMENT_NODE:
3529 case XML_ENTITY_NODE:
3530 case XML_DOCUMENT_NODE:
3531 case XML_DOCUMENT_FRAG_NODE:
3532 case XML_HTML_DOCUMENT_NODE:
3533 cur = parent->last;
3534 break;
3535 default:
3536 return(NULL);
3537 }
3538 while (cur != NULL) {
3539 if (cur->type == XML_ELEMENT_NODE)
3540 return(cur);
3541 cur = cur->prev;
3542 }
3543 return(NULL);
3544 }
3545
3546 /**
3547 * xmlPreviousElementSibling:
3548 * @node: the current node
3549 *
3550 * Finds the first closest previous sibling of the node which is an
3551 * element node.
3552 * Note the handling of entities references is different than in
3553 * the W3C DOM element traversal spec since we don't have back reference
3554 * from entities content to entities references.
3555 *
3556 * Returns the previous element sibling or NULL if not available
3557 */
3558 xmlNodePtr
xmlPreviousElementSibling(xmlNodePtr node)3559 xmlPreviousElementSibling(xmlNodePtr node) {
3560 if (node == NULL)
3561 return(NULL);
3562 switch (node->type) {
3563 case XML_ELEMENT_NODE:
3564 case XML_TEXT_NODE:
3565 case XML_CDATA_SECTION_NODE:
3566 case XML_ENTITY_REF_NODE:
3567 case XML_ENTITY_NODE:
3568 case XML_PI_NODE:
3569 case XML_COMMENT_NODE:
3570 case XML_XINCLUDE_START:
3571 case XML_XINCLUDE_END:
3572 node = node->prev;
3573 break;
3574 default:
3575 return(NULL);
3576 }
3577 while (node != NULL) {
3578 if (node->type == XML_ELEMENT_NODE)
3579 return(node);
3580 node = node->prev;
3581 }
3582 return(NULL);
3583 }
3584
3585 /**
3586 * xmlNextElementSibling:
3587 * @node: the current node
3588 *
3589 * Finds the first closest next sibling of the node which is an
3590 * element node.
3591 * Note the handling of entities references is different than in
3592 * the W3C DOM element traversal spec since we don't have back reference
3593 * from entities content to entities references.
3594 *
3595 * Returns the next element sibling or NULL if not available
3596 */
3597 xmlNodePtr
xmlNextElementSibling(xmlNodePtr node)3598 xmlNextElementSibling(xmlNodePtr node) {
3599 if (node == NULL)
3600 return(NULL);
3601 switch (node->type) {
3602 case XML_ELEMENT_NODE:
3603 case XML_TEXT_NODE:
3604 case XML_CDATA_SECTION_NODE:
3605 case XML_ENTITY_REF_NODE:
3606 case XML_ENTITY_NODE:
3607 case XML_PI_NODE:
3608 case XML_COMMENT_NODE:
3609 case XML_DTD_NODE:
3610 case XML_XINCLUDE_START:
3611 case XML_XINCLUDE_END:
3612 node = node->next;
3613 break;
3614 default:
3615 return(NULL);
3616 }
3617 while (node != NULL) {
3618 if (node->type == XML_ELEMENT_NODE)
3619 return(node);
3620 node = node->next;
3621 }
3622 return(NULL);
3623 }
3624
3625 #endif /* LIBXML_TREE_ENABLED */
3626
3627 /**
3628 * xmlFreeNodeList:
3629 * @cur: the first node in the list
3630 *
3631 * Free a node and all its siblings, this is a recursive behaviour, all
3632 * the children are freed too.
3633 */
3634 void
xmlFreeNodeList(xmlNodePtr cur)3635 xmlFreeNodeList(xmlNodePtr cur) {
3636 xmlNodePtr next;
3637 xmlDictPtr dict = NULL;
3638
3639 if (cur == NULL) return;
3640 if (cur->type == XML_NAMESPACE_DECL) {
3641 xmlFreeNsList((xmlNsPtr) cur);
3642 return;
3643 }
3644 if ((cur->type == XML_DOCUMENT_NODE) ||
3645 #ifdef LIBXML_DOCB_ENABLED
3646 (cur->type == XML_DOCB_DOCUMENT_NODE) ||
3647 #endif
3648 (cur->type == XML_HTML_DOCUMENT_NODE)) {
3649 xmlFreeDoc((xmlDocPtr) cur);
3650 return;
3651 }
3652 if (cur->doc != NULL) dict = cur->doc->dict;
3653 while (cur != NULL) {
3654 next = cur->next;
3655 if (cur->type != XML_DTD_NODE) {
3656
3657 if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
3658 xmlDeregisterNodeDefaultValue(cur);
3659
3660 if ((cur->children != NULL) &&
3661 (cur->type != XML_ENTITY_REF_NODE))
3662 xmlFreeNodeList(cur->children);
3663 if (((cur->type == XML_ELEMENT_NODE) ||
3664 (cur->type == XML_XINCLUDE_START) ||
3665 (cur->type == XML_XINCLUDE_END)) &&
3666 (cur->properties != NULL))
3667 xmlFreePropList(cur->properties);
3668 if ((cur->type != XML_ELEMENT_NODE) &&
3669 (cur->type != XML_XINCLUDE_START) &&
3670 (cur->type != XML_XINCLUDE_END) &&
3671 (cur->type != XML_ENTITY_REF_NODE) &&
3672 (cur->content != (xmlChar *) &(cur->properties))) {
3673 DICT_FREE(cur->content)
3674 }
3675 if (((cur->type == XML_ELEMENT_NODE) ||
3676 (cur->type == XML_XINCLUDE_START) ||
3677 (cur->type == XML_XINCLUDE_END)) &&
3678 (cur->nsDef != NULL))
3679 xmlFreeNsList(cur->nsDef);
3680
3681 /*
3682 * When a node is a text node or a comment, it uses a global static
3683 * variable for the name of the node.
3684 * Otherwise the node name might come from the document's
3685 * dictionnary
3686 */
3687 if ((cur->name != NULL) &&
3688 (cur->type != XML_TEXT_NODE) &&
3689 (cur->type != XML_COMMENT_NODE))
3690 DICT_FREE(cur->name)
3691 xmlFree(cur);
3692 }
3693 cur = next;
3694 }
3695 }
3696
3697 /**
3698 * xmlFreeNode:
3699 * @cur: the node
3700 *
3701 * Free a node, this is a recursive behaviour, all the children are freed too.
3702 * This doesn't unlink the child from the list, use xmlUnlinkNode() first.
3703 */
3704 void
xmlFreeNode(xmlNodePtr cur)3705 xmlFreeNode(xmlNodePtr cur) {
3706 xmlDictPtr dict = NULL;
3707
3708 if (cur == NULL) return;
3709
3710 /* use xmlFreeDtd for DTD nodes */
3711 if (cur->type == XML_DTD_NODE) {
3712 xmlFreeDtd((xmlDtdPtr) cur);
3713 return;
3714 }
3715 if (cur->type == XML_NAMESPACE_DECL) {
3716 xmlFreeNs((xmlNsPtr) cur);
3717 return;
3718 }
3719 if (cur->type == XML_ATTRIBUTE_NODE) {
3720 xmlFreeProp((xmlAttrPtr) cur);
3721 return;
3722 }
3723
3724 if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
3725 xmlDeregisterNodeDefaultValue(cur);
3726
3727 if (cur->doc != NULL) dict = cur->doc->dict;
3728
3729 if (cur->type == XML_ENTITY_DECL) {
3730 xmlEntityPtr ent = (xmlEntityPtr) cur;
3731 DICT_FREE(ent->SystemID);
3732 DICT_FREE(ent->ExternalID);
3733 }
3734 if ((cur->children != NULL) &&
3735 (cur->type != XML_ENTITY_REF_NODE))
3736 xmlFreeNodeList(cur->children);
3737 if (((cur->type == XML_ELEMENT_NODE) ||
3738 (cur->type == XML_XINCLUDE_START) ||
3739 (cur->type == XML_XINCLUDE_END)) &&
3740 (cur->properties != NULL))
3741 xmlFreePropList(cur->properties);
3742 if ((cur->type != XML_ELEMENT_NODE) &&
3743 (cur->content != NULL) &&
3744 (cur->type != XML_ENTITY_REF_NODE) &&
3745 (cur->type != XML_XINCLUDE_END) &&
3746 (cur->type != XML_XINCLUDE_START) &&
3747 (cur->content != (xmlChar *) &(cur->properties))) {
3748 DICT_FREE(cur->content)
3749 }
3750
3751 /*
3752 * When a node is a text node or a comment, it uses a global static
3753 * variable for the name of the node.
3754 * Otherwise the node name might come from the document's dictionnary
3755 */
3756 if ((cur->name != NULL) &&
3757 (cur->type != XML_TEXT_NODE) &&
3758 (cur->type != XML_COMMENT_NODE))
3759 DICT_FREE(cur->name)
3760
3761 if (((cur->type == XML_ELEMENT_NODE) ||
3762 (cur->type == XML_XINCLUDE_START) ||
3763 (cur->type == XML_XINCLUDE_END)) &&
3764 (cur->nsDef != NULL))
3765 xmlFreeNsList(cur->nsDef);
3766 xmlFree(cur);
3767 }
3768
3769 /**
3770 * xmlUnlinkNode:
3771 * @cur: the node
3772 *
3773 * Unlink a node from it's current context, the node is not freed
3774 * If one need to free the node, use xmlFreeNode() routine after the
3775 * unlink to discard it.
3776 * Note that namespace nodes can't be unlinked as they do not have
3777 * pointer to their parent.
3778 */
3779 void
xmlUnlinkNode(xmlNodePtr cur)3780 xmlUnlinkNode(xmlNodePtr cur) {
3781 if (cur == NULL) {
3782 #ifdef DEBUG_TREE
3783 xmlGenericError(xmlGenericErrorContext,
3784 "xmlUnlinkNode : node == NULL\n");
3785 #endif
3786 return;
3787 }
3788 if (cur->type == XML_NAMESPACE_DECL)
3789 return;
3790 if (cur->type == XML_DTD_NODE) {
3791 xmlDocPtr doc;
3792 doc = cur->doc;
3793 if (doc != NULL) {
3794 if (doc->intSubset == (xmlDtdPtr) cur)
3795 doc->intSubset = NULL;
3796 if (doc->extSubset == (xmlDtdPtr) cur)
3797 doc->extSubset = NULL;
3798 }
3799 }
3800 if (cur->type == XML_ENTITY_DECL) {
3801 xmlDocPtr doc;
3802 doc = cur->doc;
3803 if (doc != NULL) {
3804 if (doc->intSubset != NULL) {
3805 if (xmlHashLookup(doc->intSubset->entities, cur->name) == cur)
3806 xmlHashRemoveEntry(doc->intSubset->entities, cur->name,
3807 NULL);
3808 if (xmlHashLookup(doc->intSubset->pentities, cur->name) == cur)
3809 xmlHashRemoveEntry(doc->intSubset->pentities, cur->name,
3810 NULL);
3811 }
3812 if (doc->extSubset != NULL) {
3813 if (xmlHashLookup(doc->extSubset->entities, cur->name) == cur)
3814 xmlHashRemoveEntry(doc->extSubset->entities, cur->name,
3815 NULL);
3816 if (xmlHashLookup(doc->extSubset->pentities, cur->name) == cur)
3817 xmlHashRemoveEntry(doc->extSubset->pentities, cur->name,
3818 NULL);
3819 }
3820 }
3821 }
3822 if (cur->parent != NULL) {
3823 xmlNodePtr parent;
3824 parent = cur->parent;
3825 if (cur->type == XML_ATTRIBUTE_NODE) {
3826 if (parent->properties == (xmlAttrPtr) cur)
3827 parent->properties = ((xmlAttrPtr) cur)->next;
3828 } else {
3829 if (parent->children == cur)
3830 parent->children = cur->next;
3831 if (parent->last == cur)
3832 parent->last = cur->prev;
3833 }
3834 cur->parent = NULL;
3835 }
3836 if (cur->next != NULL)
3837 cur->next->prev = cur->prev;
3838 if (cur->prev != NULL)
3839 cur->prev->next = cur->next;
3840 cur->next = cur->prev = NULL;
3841 }
3842
3843 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_WRITER_ENABLED)
3844 /**
3845 * xmlReplaceNode:
3846 * @old: the old node
3847 * @cur: the node
3848 *
3849 * Unlink the old node from its current context, prune the new one
3850 * at the same place. If @cur was already inserted in a document it is
3851 * first unlinked from its existing context.
3852 *
3853 * Returns the @old node
3854 */
3855 xmlNodePtr
xmlReplaceNode(xmlNodePtr old,xmlNodePtr cur)3856 xmlReplaceNode(xmlNodePtr old, xmlNodePtr cur) {
3857 if (old == cur) return(NULL);
3858 if ((old == NULL) || (old->type == XML_NAMESPACE_DECL) ||
3859 (old->parent == NULL)) {
3860 #ifdef DEBUG_TREE
3861 xmlGenericError(xmlGenericErrorContext,
3862 "xmlReplaceNode : old == NULL or without parent\n");
3863 #endif
3864 return(NULL);
3865 }
3866 if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {
3867 xmlUnlinkNode(old);
3868 return(old);
3869 }
3870 if (cur == old) {
3871 return(old);
3872 }
3873 if ((old->type==XML_ATTRIBUTE_NODE) && (cur->type!=XML_ATTRIBUTE_NODE)) {
3874 #ifdef DEBUG_TREE
3875 xmlGenericError(xmlGenericErrorContext,
3876 "xmlReplaceNode : Trying to replace attribute node with other node type\n");
3877 #endif
3878 return(old);
3879 }
3880 if ((cur->type==XML_ATTRIBUTE_NODE) && (old->type!=XML_ATTRIBUTE_NODE)) {
3881 #ifdef DEBUG_TREE
3882 xmlGenericError(xmlGenericErrorContext,
3883 "xmlReplaceNode : Trying to replace a non-attribute node with attribute node\n");
3884 #endif
3885 return(old);
3886 }
3887 xmlUnlinkNode(cur);
3888 xmlSetTreeDoc(cur, old->doc);
3889 cur->parent = old->parent;
3890 cur->next = old->next;
3891 if (cur->next != NULL)
3892 cur->next->prev = cur;
3893 cur->prev = old->prev;
3894 if (cur->prev != NULL)
3895 cur->prev->next = cur;
3896 if (cur->parent != NULL) {
3897 if (cur->type == XML_ATTRIBUTE_NODE) {
3898 if (cur->parent->properties == (xmlAttrPtr)old)
3899 cur->parent->properties = ((xmlAttrPtr) cur);
3900 } else {
3901 if (cur->parent->children == old)
3902 cur->parent->children = cur;
3903 if (cur->parent->last == old)
3904 cur->parent->last = cur;
3905 }
3906 }
3907 old->next = old->prev = NULL;
3908 old->parent = NULL;
3909 return(old);
3910 }
3911 #endif /* LIBXML_TREE_ENABLED */
3912
3913 /************************************************************************
3914 * *
3915 * Copy operations *
3916 * *
3917 ************************************************************************/
3918
3919 /**
3920 * xmlCopyNamespace:
3921 * @cur: the namespace
3922 *
3923 * Do a copy of the namespace.
3924 *
3925 * Returns: a new #xmlNsPtr, or NULL in case of error.
3926 */
3927 xmlNsPtr
xmlCopyNamespace(xmlNsPtr cur)3928 xmlCopyNamespace(xmlNsPtr cur) {
3929 xmlNsPtr ret;
3930
3931 if (cur == NULL) return(NULL);
3932 switch (cur->type) {
3933 case XML_LOCAL_NAMESPACE:
3934 ret = xmlNewNs(NULL, cur->href, cur->prefix);
3935 break;
3936 default:
3937 #ifdef DEBUG_TREE
3938 xmlGenericError(xmlGenericErrorContext,
3939 "xmlCopyNamespace: invalid type %d\n", cur->type);
3940 #endif
3941 return(NULL);
3942 }
3943 return(ret);
3944 }
3945
3946 /**
3947 * xmlCopyNamespaceList:
3948 * @cur: the first namespace
3949 *
3950 * Do a copy of an namespace list.
3951 *
3952 * Returns: a new #xmlNsPtr, or NULL in case of error.
3953 */
3954 xmlNsPtr
xmlCopyNamespaceList(xmlNsPtr cur)3955 xmlCopyNamespaceList(xmlNsPtr cur) {
3956 xmlNsPtr ret = NULL;
3957 xmlNsPtr p = NULL,q;
3958
3959 while (cur != NULL) {
3960 q = xmlCopyNamespace(cur);
3961 if (p == NULL) {
3962 ret = p = q;
3963 } else {
3964 p->next = q;
3965 p = q;
3966 }
3967 cur = cur->next;
3968 }
3969 return(ret);
3970 }
3971
3972 static xmlNodePtr
3973 xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent);
3974
3975 static xmlAttrPtr
xmlCopyPropInternal(xmlDocPtr doc,xmlNodePtr target,xmlAttrPtr cur)3976 xmlCopyPropInternal(xmlDocPtr doc, xmlNodePtr target, xmlAttrPtr cur) {
3977 xmlAttrPtr ret;
3978
3979 if (cur == NULL) return(NULL);
3980 if ((target != NULL) && (target->type != XML_ELEMENT_NODE))
3981 return(NULL);
3982 if (target != NULL)
3983 ret = xmlNewDocProp(target->doc, cur->name, NULL);
3984 else if (doc != NULL)
3985 ret = xmlNewDocProp(doc, cur->name, NULL);
3986 else if (cur->parent != NULL)
3987 ret = xmlNewDocProp(cur->parent->doc, cur->name, NULL);
3988 else if (cur->children != NULL)
3989 ret = xmlNewDocProp(cur->children->doc, cur->name, NULL);
3990 else
3991 ret = xmlNewDocProp(NULL, cur->name, NULL);
3992 if (ret == NULL) return(NULL);
3993 ret->parent = target;
3994
3995 if ((cur->ns != NULL) && (target != NULL)) {
3996 xmlNsPtr ns;
3997
3998 ns = xmlSearchNs(target->doc, target, cur->ns->prefix);
3999 if (ns == NULL) {
4000 /*
4001 * Humm, we are copying an element whose namespace is defined
4002 * out of the new tree scope. Search it in the original tree
4003 * and add it at the top of the new tree
4004 */
4005 ns = xmlSearchNs(cur->doc, cur->parent, cur->ns->prefix);
4006 if (ns != NULL) {
4007 xmlNodePtr root = target;
4008 xmlNodePtr pred = NULL;
4009
4010 while (root->parent != NULL) {
4011 pred = root;
4012 root = root->parent;
4013 }
4014 if (root == (xmlNodePtr) target->doc) {
4015 /* correct possibly cycling above the document elt */
4016 root = pred;
4017 }
4018 ret->ns = xmlNewNs(root, ns->href, ns->prefix);
4019 }
4020 } else {
4021 /*
4022 * we have to find something appropriate here since
4023 * we cant be sure, that the namespce we found is identified
4024 * by the prefix
4025 */
4026 if (xmlStrEqual(ns->href, cur->ns->href)) {
4027 /* this is the nice case */
4028 ret->ns = ns;
4029 } else {
4030 /*
4031 * we are in trouble: we need a new reconcilied namespace.
4032 * This is expensive
4033 */
4034 ret->ns = xmlNewReconciliedNs(target->doc, target, cur->ns);
4035 }
4036 }
4037
4038 } else
4039 ret->ns = NULL;
4040
4041 if (cur->children != NULL) {
4042 xmlNodePtr tmp;
4043
4044 ret->children = xmlStaticCopyNodeList(cur->children, ret->doc, (xmlNodePtr) ret);
4045 ret->last = NULL;
4046 tmp = ret->children;
4047 while (tmp != NULL) {
4048 /* tmp->parent = (xmlNodePtr)ret; */
4049 if (tmp->next == NULL)
4050 ret->last = tmp;
4051 tmp = tmp->next;
4052 }
4053 }
4054 /*
4055 * Try to handle IDs
4056 */
4057 if ((target!= NULL) && (cur!= NULL) &&
4058 (target->doc != NULL) && (cur->doc != NULL) &&
4059 (cur->doc->ids != NULL) && (cur->parent != NULL)) {
4060 if (xmlIsID(cur->doc, cur->parent, cur)) {
4061 xmlChar *id;
4062
4063 id = xmlNodeListGetString(cur->doc, cur->children, 1);
4064 if (id != NULL) {
4065 xmlAddID(NULL, target->doc, id, ret);
4066 xmlFree(id);
4067 }
4068 }
4069 }
4070 return(ret);
4071 }
4072
4073 /**
4074 * xmlCopyProp:
4075 * @target: the element where the attribute will be grafted
4076 * @cur: the attribute
4077 *
4078 * Do a copy of the attribute.
4079 *
4080 * Returns: a new #xmlAttrPtr, or NULL in case of error.
4081 */
4082 xmlAttrPtr
xmlCopyProp(xmlNodePtr target,xmlAttrPtr cur)4083 xmlCopyProp(xmlNodePtr target, xmlAttrPtr cur) {
4084 return xmlCopyPropInternal(NULL, target, cur);
4085 }
4086
4087 /**
4088 * xmlCopyPropList:
4089 * @target: the element where the attributes will be grafted
4090 * @cur: the first attribute
4091 *
4092 * Do a copy of an attribute list.
4093 *
4094 * Returns: a new #xmlAttrPtr, or NULL in case of error.
4095 */
4096 xmlAttrPtr
xmlCopyPropList(xmlNodePtr target,xmlAttrPtr cur)4097 xmlCopyPropList(xmlNodePtr target, xmlAttrPtr cur) {
4098 xmlAttrPtr ret = NULL;
4099 xmlAttrPtr p = NULL,q;
4100
4101 if ((target != NULL) && (target->type != XML_ELEMENT_NODE))
4102 return(NULL);
4103 while (cur != NULL) {
4104 q = xmlCopyProp(target, cur);
4105 if (q == NULL)
4106 return(NULL);
4107 if (p == NULL) {
4108 ret = p = q;
4109 } else {
4110 p->next = q;
4111 q->prev = p;
4112 p = q;
4113 }
4114 cur = cur->next;
4115 }
4116 return(ret);
4117 }
4118
4119 /*
4120 * NOTE about the CopyNode operations !
4121 *
4122 * They are split into external and internal parts for one
4123 * tricky reason: namespaces. Doing a direct copy of a node
4124 * say RPM:Copyright without changing the namespace pointer to
4125 * something else can produce stale links. One way to do it is
4126 * to keep a reference counter but this doesn't work as soon
4127 * as one move the element or the subtree out of the scope of
4128 * the existing namespace. The actual solution seems to add
4129 * a copy of the namespace at the top of the copied tree if
4130 * not available in the subtree.
4131 * Hence two functions, the public front-end call the inner ones
4132 * The argument "recursive" normally indicates a recursive copy
4133 * of the node with values 0 (no) and 1 (yes). For XInclude,
4134 * however, we allow a value of 2 to indicate copy properties and
4135 * namespace info, but don't recurse on children.
4136 */
4137
4138 static xmlNodePtr
xmlStaticCopyNode(xmlNodePtr node,xmlDocPtr doc,xmlNodePtr parent,int extended)4139 xmlStaticCopyNode(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent,
4140 int extended) {
4141 xmlNodePtr ret;
4142
4143 if (node == NULL) return(NULL);
4144 switch (node->type) {
4145 case XML_TEXT_NODE:
4146 case XML_CDATA_SECTION_NODE:
4147 case XML_ELEMENT_NODE:
4148 case XML_DOCUMENT_FRAG_NODE:
4149 case XML_ENTITY_REF_NODE:
4150 case XML_ENTITY_NODE:
4151 case XML_PI_NODE:
4152 case XML_COMMENT_NODE:
4153 case XML_XINCLUDE_START:
4154 case XML_XINCLUDE_END:
4155 break;
4156 case XML_ATTRIBUTE_NODE:
4157 return((xmlNodePtr) xmlCopyPropInternal(doc, parent, (xmlAttrPtr) node));
4158 case XML_NAMESPACE_DECL:
4159 return((xmlNodePtr) xmlCopyNamespaceList((xmlNsPtr) node));
4160
4161 case XML_DOCUMENT_NODE:
4162 case XML_HTML_DOCUMENT_NODE:
4163 #ifdef LIBXML_DOCB_ENABLED
4164 case XML_DOCB_DOCUMENT_NODE:
4165 #endif
4166 #ifdef LIBXML_TREE_ENABLED
4167 return((xmlNodePtr) xmlCopyDoc((xmlDocPtr) node, extended));
4168 #endif /* LIBXML_TREE_ENABLED */
4169 case XML_DOCUMENT_TYPE_NODE:
4170 case XML_NOTATION_NODE:
4171 case XML_DTD_NODE:
4172 case XML_ELEMENT_DECL:
4173 case XML_ATTRIBUTE_DECL:
4174 case XML_ENTITY_DECL:
4175 return(NULL);
4176 }
4177
4178 /*
4179 * Allocate a new node and fill the fields.
4180 */
4181 ret = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
4182 if (ret == NULL) {
4183 xmlTreeErrMemory("copying node");
4184 return(NULL);
4185 }
4186 memset(ret, 0, sizeof(xmlNode));
4187 ret->type = node->type;
4188
4189 ret->doc = doc;
4190 ret->parent = parent;
4191 if (node->name == xmlStringText)
4192 ret->name = xmlStringText;
4193 else if (node->name == xmlStringTextNoenc)
4194 ret->name = xmlStringTextNoenc;
4195 else if (node->name == xmlStringComment)
4196 ret->name = xmlStringComment;
4197 else if (node->name != NULL) {
4198 if ((doc != NULL) && (doc->dict != NULL))
4199 ret->name = xmlDictLookup(doc->dict, node->name, -1);
4200 else
4201 ret->name = xmlStrdup(node->name);
4202 }
4203 if ((node->type != XML_ELEMENT_NODE) &&
4204 (node->content != NULL) &&
4205 (node->type != XML_ENTITY_REF_NODE) &&
4206 (node->type != XML_XINCLUDE_END) &&
4207 (node->type != XML_XINCLUDE_START)) {
4208 ret->content = xmlStrdup(node->content);
4209 }else{
4210 if (node->type == XML_ELEMENT_NODE)
4211 ret->line = node->line;
4212 }
4213 if (parent != NULL) {
4214 xmlNodePtr tmp;
4215
4216 /*
4217 * this is a tricky part for the node register thing:
4218 * in case ret does get coalesced in xmlAddChild
4219 * the deregister-node callback is called; so we register ret now already
4220 */
4221 if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
4222 xmlRegisterNodeDefaultValue((xmlNodePtr)ret);
4223
4224 tmp = xmlAddChild(parent, ret);
4225 /* node could have coalesced */
4226 if (tmp != ret)
4227 return(tmp);
4228 }
4229
4230 if (!extended)
4231 goto out;
4232 if (((node->type == XML_ELEMENT_NODE) ||
4233 (node->type == XML_XINCLUDE_START)) && (node->nsDef != NULL))
4234 ret->nsDef = xmlCopyNamespaceList(node->nsDef);
4235
4236 if (node->ns != NULL) {
4237 xmlNsPtr ns;
4238
4239 ns = xmlSearchNs(doc, ret, node->ns->prefix);
4240 if (ns == NULL) {
4241 /*
4242 * Humm, we are copying an element whose namespace is defined
4243 * out of the new tree scope. Search it in the original tree
4244 * and add it at the top of the new tree
4245 */
4246 ns = xmlSearchNs(node->doc, node, node->ns->prefix);
4247 if (ns != NULL) {
4248 xmlNodePtr root = ret;
4249
4250 while (root->parent != NULL) root = root->parent;
4251 ret->ns = xmlNewNs(root, ns->href, ns->prefix);
4252 } else {
4253 ret->ns = xmlNewReconciliedNs(doc, ret, node->ns);
4254 }
4255 } else {
4256 /*
4257 * reference the existing namespace definition in our own tree.
4258 */
4259 ret->ns = ns;
4260 }
4261 }
4262 if (((node->type == XML_ELEMENT_NODE) ||
4263 (node->type == XML_XINCLUDE_START)) && (node->properties != NULL))
4264 ret->properties = xmlCopyPropList(ret, node->properties);
4265 if (node->type == XML_ENTITY_REF_NODE) {
4266 if ((doc == NULL) || (node->doc != doc)) {
4267 /*
4268 * The copied node will go into a separate document, so
4269 * to avoid dangling references to the ENTITY_DECL node
4270 * we cannot keep the reference. Try to find it in the
4271 * target document.
4272 */
4273 ret->children = (xmlNodePtr) xmlGetDocEntity(doc, ret->name);
4274 } else {
4275 ret->children = node->children;
4276 }
4277 ret->last = ret->children;
4278 } else if ((node->children != NULL) && (extended != 2)) {
4279 ret->children = xmlStaticCopyNodeList(node->children, doc, ret);
4280 UPDATE_LAST_CHILD_AND_PARENT(ret)
4281 }
4282
4283 out:
4284 /* if parent != NULL we already registered the node above */
4285 if ((parent == NULL) &&
4286 ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue)))
4287 xmlRegisterNodeDefaultValue((xmlNodePtr)ret);
4288 return(ret);
4289 }
4290
4291 static xmlNodePtr
xmlStaticCopyNodeList(xmlNodePtr node,xmlDocPtr doc,xmlNodePtr parent)4292 xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent) {
4293 xmlNodePtr ret = NULL;
4294 xmlNodePtr p = NULL,q;
4295
4296 while (node != NULL) {
4297 #ifdef LIBXML_TREE_ENABLED
4298 if (node->type == XML_DTD_NODE ) {
4299 if (doc == NULL) {
4300 node = node->next;
4301 continue;
4302 }
4303 if (doc->intSubset == NULL) {
4304 q = (xmlNodePtr) xmlCopyDtd( (xmlDtdPtr) node );
4305 if (q == NULL) return(NULL);
4306 q->doc = doc;
4307 q->parent = parent;
4308 doc->intSubset = (xmlDtdPtr) q;
4309 xmlAddChild(parent, q);
4310 } else {
4311 q = (xmlNodePtr) doc->intSubset;
4312 xmlAddChild(parent, q);
4313 }
4314 } else
4315 #endif /* LIBXML_TREE_ENABLED */
4316 q = xmlStaticCopyNode(node, doc, parent, 1);
4317 if (q == NULL) return(NULL);
4318 if (ret == NULL) {
4319 q->prev = NULL;
4320 ret = p = q;
4321 } else if (p != q) {
4322 /* the test is required if xmlStaticCopyNode coalesced 2 text nodes */
4323 p->next = q;
4324 q->prev = p;
4325 p = q;
4326 }
4327 node = node->next;
4328 }
4329 return(ret);
4330 }
4331
4332 /**
4333 * xmlCopyNode:
4334 * @node: the node
4335 * @extended: if 1 do a recursive copy (properties, namespaces and children
4336 * when applicable)
4337 * if 2 copy properties and namespaces (when applicable)
4338 *
4339 * Do a copy of the node.
4340 *
4341 * Returns: a new #xmlNodePtr, or NULL in case of error.
4342 */
4343 xmlNodePtr
xmlCopyNode(xmlNodePtr node,int extended)4344 xmlCopyNode(xmlNodePtr node, int extended) {
4345 xmlNodePtr ret;
4346
4347 ret = xmlStaticCopyNode(node, NULL, NULL, extended);
4348 return(ret);
4349 }
4350
4351 /**
4352 * xmlDocCopyNode:
4353 * @node: the node
4354 * @doc: the document
4355 * @extended: if 1 do a recursive copy (properties, namespaces and children
4356 * when applicable)
4357 * if 2 copy properties and namespaces (when applicable)
4358 *
4359 * Do a copy of the node to a given document.
4360 *
4361 * Returns: a new #xmlNodePtr, or NULL in case of error.
4362 */
4363 xmlNodePtr
xmlDocCopyNode(xmlNodePtr node,xmlDocPtr doc,int extended)4364 xmlDocCopyNode(xmlNodePtr node, xmlDocPtr doc, int extended) {
4365 xmlNodePtr ret;
4366
4367 ret = xmlStaticCopyNode(node, doc, NULL, extended);
4368 return(ret);
4369 }
4370
4371 /**
4372 * xmlDocCopyNodeList:
4373 * @doc: the target document
4374 * @node: the first node in the list.
4375 *
4376 * Do a recursive copy of the node list.
4377 *
4378 * Returns: a new #xmlNodePtr, or NULL in case of error.
4379 */
xmlDocCopyNodeList(xmlDocPtr doc,xmlNodePtr node)4380 xmlNodePtr xmlDocCopyNodeList(xmlDocPtr doc, xmlNodePtr node) {
4381 xmlNodePtr ret = xmlStaticCopyNodeList(node, doc, NULL);
4382 return(ret);
4383 }
4384
4385 /**
4386 * xmlCopyNodeList:
4387 * @node: the first node in the list.
4388 *
4389 * Do a recursive copy of the node list.
4390 * Use xmlDocCopyNodeList() if possible to ensure string interning.
4391 *
4392 * Returns: a new #xmlNodePtr, or NULL in case of error.
4393 */
xmlCopyNodeList(xmlNodePtr node)4394 xmlNodePtr xmlCopyNodeList(xmlNodePtr node) {
4395 xmlNodePtr ret = xmlStaticCopyNodeList(node, NULL, NULL);
4396 return(ret);
4397 }
4398
4399 #if defined(LIBXML_TREE_ENABLED)
4400 /**
4401 * xmlCopyDtd:
4402 * @dtd: the dtd
4403 *
4404 * Do a copy of the dtd.
4405 *
4406 * Returns: a new #xmlDtdPtr, or NULL in case of error.
4407 */
4408 xmlDtdPtr
xmlCopyDtd(xmlDtdPtr dtd)4409 xmlCopyDtd(xmlDtdPtr dtd) {
4410 xmlDtdPtr ret;
4411 xmlNodePtr cur, p = NULL, q;
4412
4413 if (dtd == NULL) return(NULL);
4414 ret = xmlNewDtd(NULL, dtd->name, dtd->ExternalID, dtd->SystemID);
4415 if (ret == NULL) return(NULL);
4416 if (dtd->entities != NULL)
4417 ret->entities = (void *) xmlCopyEntitiesTable(
4418 (xmlEntitiesTablePtr) dtd->entities);
4419 if (dtd->notations != NULL)
4420 ret->notations = (void *) xmlCopyNotationTable(
4421 (xmlNotationTablePtr) dtd->notations);
4422 if (dtd->elements != NULL)
4423 ret->elements = (void *) xmlCopyElementTable(
4424 (xmlElementTablePtr) dtd->elements);
4425 if (dtd->attributes != NULL)
4426 ret->attributes = (void *) xmlCopyAttributeTable(
4427 (xmlAttributeTablePtr) dtd->attributes);
4428 if (dtd->pentities != NULL)
4429 ret->pentities = (void *) xmlCopyEntitiesTable(
4430 (xmlEntitiesTablePtr) dtd->pentities);
4431
4432 cur = dtd->children;
4433 while (cur != NULL) {
4434 q = NULL;
4435
4436 if (cur->type == XML_ENTITY_DECL) {
4437 xmlEntityPtr tmp = (xmlEntityPtr) cur;
4438 switch (tmp->etype) {
4439 case XML_INTERNAL_GENERAL_ENTITY:
4440 case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
4441 case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
4442 q = (xmlNodePtr) xmlGetEntityFromDtd(ret, tmp->name);
4443 break;
4444 case XML_INTERNAL_PARAMETER_ENTITY:
4445 case XML_EXTERNAL_PARAMETER_ENTITY:
4446 q = (xmlNodePtr)
4447 xmlGetParameterEntityFromDtd(ret, tmp->name);
4448 break;
4449 case XML_INTERNAL_PREDEFINED_ENTITY:
4450 break;
4451 }
4452 } else if (cur->type == XML_ELEMENT_DECL) {
4453 xmlElementPtr tmp = (xmlElementPtr) cur;
4454 q = (xmlNodePtr)
4455 xmlGetDtdQElementDesc(ret, tmp->name, tmp->prefix);
4456 } else if (cur->type == XML_ATTRIBUTE_DECL) {
4457 xmlAttributePtr tmp = (xmlAttributePtr) cur;
4458 q = (xmlNodePtr)
4459 xmlGetDtdQAttrDesc(ret, tmp->elem, tmp->name, tmp->prefix);
4460 } else if (cur->type == XML_COMMENT_NODE) {
4461 q = xmlCopyNode(cur, 0);
4462 }
4463
4464 if (q == NULL) {
4465 cur = cur->next;
4466 continue;
4467 }
4468
4469 if (p == NULL)
4470 ret->children = q;
4471 else
4472 p->next = q;
4473
4474 q->prev = p;
4475 q->parent = (xmlNodePtr) ret;
4476 q->next = NULL;
4477 ret->last = q;
4478 p = q;
4479 cur = cur->next;
4480 }
4481
4482 return(ret);
4483 }
4484 #endif
4485
4486 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
4487 /**
4488 * xmlCopyDoc:
4489 * @doc: the document
4490 * @recursive: if not zero do a recursive copy.
4491 *
4492 * Do a copy of the document info. If recursive, the content tree will
4493 * be copied too as well as DTD, namespaces and entities.
4494 *
4495 * Returns: a new #xmlDocPtr, or NULL in case of error.
4496 */
4497 xmlDocPtr
xmlCopyDoc(xmlDocPtr doc,int recursive)4498 xmlCopyDoc(xmlDocPtr doc, int recursive) {
4499 xmlDocPtr ret;
4500
4501 if (doc == NULL) return(NULL);
4502 ret = xmlNewDoc(doc->version);
4503 if (ret == NULL) return(NULL);
4504 if (doc->name != NULL)
4505 ret->name = xmlMemStrdup(doc->name);
4506 if (doc->encoding != NULL)
4507 ret->encoding = xmlStrdup(doc->encoding);
4508 if (doc->URL != NULL)
4509 ret->URL = xmlStrdup(doc->URL);
4510 ret->charset = doc->charset;
4511 ret->compression = doc->compression;
4512 ret->standalone = doc->standalone;
4513 if (!recursive) return(ret);
4514
4515 ret->last = NULL;
4516 ret->children = NULL;
4517 #ifdef LIBXML_TREE_ENABLED
4518 if (doc->intSubset != NULL) {
4519 ret->intSubset = xmlCopyDtd(doc->intSubset);
4520 if (ret->intSubset == NULL) {
4521 xmlFreeDoc(ret);
4522 return(NULL);
4523 }
4524 xmlSetTreeDoc((xmlNodePtr)ret->intSubset, ret);
4525 ret->intSubset->parent = ret;
4526 }
4527 #endif
4528 if (doc->oldNs != NULL)
4529 ret->oldNs = xmlCopyNamespaceList(doc->oldNs);
4530 if (doc->children != NULL) {
4531 xmlNodePtr tmp;
4532
4533 ret->children = xmlStaticCopyNodeList(doc->children, ret,
4534 (xmlNodePtr)ret);
4535 ret->last = NULL;
4536 tmp = ret->children;
4537 while (tmp != NULL) {
4538 if (tmp->next == NULL)
4539 ret->last = tmp;
4540 tmp = tmp->next;
4541 }
4542 }
4543 return(ret);
4544 }
4545 #endif /* LIBXML_TREE_ENABLED */
4546
4547 /************************************************************************
4548 * *
4549 * Content access functions *
4550 * *
4551 ************************************************************************/
4552
4553 /**
4554 * xmlGetLineNoInternal:
4555 * @node: valid node
4556 * @depth: used to limit any risk of recursion
4557 *
4558 * Get line number of @node.
4559 * Try to override the limitation of lines being store in 16 bits ints
4560 *
4561 * Returns the line number if successful, -1 otherwise
4562 */
4563 static long
xmlGetLineNoInternal(const xmlNode * node,int depth)4564 xmlGetLineNoInternal(const xmlNode *node, int depth)
4565 {
4566 long result = -1;
4567
4568 if (depth >= 5)
4569 return(-1);
4570
4571 if (!node)
4572 return result;
4573 if ((node->type == XML_ELEMENT_NODE) ||
4574 (node->type == XML_TEXT_NODE) ||
4575 (node->type == XML_COMMENT_NODE) ||
4576 (node->type == XML_PI_NODE)) {
4577 if (node->line == 65535) {
4578 if ((node->type == XML_TEXT_NODE) && (node->psvi != NULL))
4579 result = (long) node->psvi;
4580 else if ((node->type == XML_ELEMENT_NODE) &&
4581 (node->children != NULL))
4582 result = xmlGetLineNoInternal(node->children, depth + 1);
4583 else if (node->next != NULL)
4584 result = xmlGetLineNoInternal(node->next, depth + 1);
4585 else if (node->prev != NULL)
4586 result = xmlGetLineNoInternal(node->prev, depth + 1);
4587 }
4588 if ((result == -1) || (result == 65535))
4589 result = (long) node->line;
4590 } else if ((node->prev != NULL) &&
4591 ((node->prev->type == XML_ELEMENT_NODE) ||
4592 (node->prev->type == XML_TEXT_NODE) ||
4593 (node->prev->type == XML_COMMENT_NODE) ||
4594 (node->prev->type == XML_PI_NODE)))
4595 result = xmlGetLineNoInternal(node->prev, depth + 1);
4596 else if ((node->parent != NULL) &&
4597 (node->parent->type == XML_ELEMENT_NODE))
4598 result = xmlGetLineNoInternal(node->parent, depth + 1);
4599
4600 return result;
4601 }
4602
4603 /**
4604 * xmlGetLineNo:
4605 * @node: valid node
4606 *
4607 * Get line number of @node.
4608 * Try to override the limitation of lines being store in 16 bits ints
4609 * if XML_PARSE_BIG_LINES parser option was used
4610 *
4611 * Returns the line number if successful, -1 otherwise
4612 */
4613 long
xmlGetLineNo(const xmlNode * node)4614 xmlGetLineNo(const xmlNode *node)
4615 {
4616 return(xmlGetLineNoInternal(node, 0));
4617 }
4618
4619 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_DEBUG_ENABLED)
4620 /**
4621 * xmlGetNodePath:
4622 * @node: a node
4623 *
4624 * Build a structure based Path for the given node
4625 *
4626 * Returns the new path or NULL in case of error. The caller must free
4627 * the returned string
4628 */
4629 xmlChar *
xmlGetNodePath(const xmlNode * node)4630 xmlGetNodePath(const xmlNode *node)
4631 {
4632 const xmlNode *cur, *tmp, *next;
4633 xmlChar *buffer = NULL, *temp;
4634 size_t buf_len;
4635 xmlChar *buf;
4636 const char *sep;
4637 const char *name;
4638 char nametemp[100];
4639 int occur = 0, generic;
4640
4641 if ((node == NULL) || (node->type == XML_NAMESPACE_DECL))
4642 return (NULL);
4643
4644 buf_len = 500;
4645 buffer = (xmlChar *) xmlMallocAtomic(buf_len * sizeof(xmlChar));
4646 if (buffer == NULL) {
4647 xmlTreeErrMemory("getting node path");
4648 return (NULL);
4649 }
4650 buf = (xmlChar *) xmlMallocAtomic(buf_len * sizeof(xmlChar));
4651 if (buf == NULL) {
4652 xmlTreeErrMemory("getting node path");
4653 xmlFree(buffer);
4654 return (NULL);
4655 }
4656
4657 buffer[0] = 0;
4658 cur = node;
4659 do {
4660 name = "";
4661 sep = "?";
4662 occur = 0;
4663 if ((cur->type == XML_DOCUMENT_NODE) ||
4664 (cur->type == XML_HTML_DOCUMENT_NODE)) {
4665 if (buffer[0] == '/')
4666 break;
4667 sep = "/";
4668 next = NULL;
4669 } else if (cur->type == XML_ELEMENT_NODE) {
4670 generic = 0;
4671 sep = "/";
4672 name = (const char *) cur->name;
4673 if (cur->ns) {
4674 if (cur->ns->prefix != NULL) {
4675 snprintf(nametemp, sizeof(nametemp) - 1, "%s:%s",
4676 (char *)cur->ns->prefix, (char *)cur->name);
4677 nametemp[sizeof(nametemp) - 1] = 0;
4678 name = nametemp;
4679 } else {
4680 /*
4681 * We cannot express named elements in the default
4682 * namespace, so use "*".
4683 */
4684 generic = 1;
4685 name = "*";
4686 }
4687 }
4688 next = cur->parent;
4689
4690 /*
4691 * Thumbler index computation
4692 * TODO: the ocurence test seems bogus for namespaced names
4693 */
4694 tmp = cur->prev;
4695 while (tmp != NULL) {
4696 if ((tmp->type == XML_ELEMENT_NODE) &&
4697 (generic ||
4698 (xmlStrEqual(cur->name, tmp->name) &&
4699 ((tmp->ns == cur->ns) ||
4700 ((tmp->ns != NULL) && (cur->ns != NULL) &&
4701 (xmlStrEqual(cur->ns->prefix, tmp->ns->prefix)))))))
4702 occur++;
4703 tmp = tmp->prev;
4704 }
4705 if (occur == 0) {
4706 tmp = cur->next;
4707 while (tmp != NULL && occur == 0) {
4708 if ((tmp->type == XML_ELEMENT_NODE) &&
4709 (generic ||
4710 (xmlStrEqual(cur->name, tmp->name) &&
4711 ((tmp->ns == cur->ns) ||
4712 ((tmp->ns != NULL) && (cur->ns != NULL) &&
4713 (xmlStrEqual(cur->ns->prefix, tmp->ns->prefix)))))))
4714 occur++;
4715 tmp = tmp->next;
4716 }
4717 if (occur != 0)
4718 occur = 1;
4719 } else
4720 occur++;
4721 } else if (cur->type == XML_COMMENT_NODE) {
4722 sep = "/";
4723 name = "comment()";
4724 next = cur->parent;
4725
4726 /*
4727 * Thumbler index computation
4728 */
4729 tmp = cur->prev;
4730 while (tmp != NULL) {
4731 if (tmp->type == XML_COMMENT_NODE)
4732 occur++;
4733 tmp = tmp->prev;
4734 }
4735 if (occur == 0) {
4736 tmp = cur->next;
4737 while (tmp != NULL && occur == 0) {
4738 if (tmp->type == XML_COMMENT_NODE)
4739 occur++;
4740 tmp = tmp->next;
4741 }
4742 if (occur != 0)
4743 occur = 1;
4744 } else
4745 occur++;
4746 } else if ((cur->type == XML_TEXT_NODE) ||
4747 (cur->type == XML_CDATA_SECTION_NODE)) {
4748 sep = "/";
4749 name = "text()";
4750 next = cur->parent;
4751
4752 /*
4753 * Thumbler index computation
4754 */
4755 tmp = cur->prev;
4756 while (tmp != NULL) {
4757 if ((tmp->type == XML_TEXT_NODE) ||
4758 (tmp->type == XML_CDATA_SECTION_NODE))
4759 occur++;
4760 tmp = tmp->prev;
4761 }
4762 /*
4763 * Evaluate if this is the only text- or CDATA-section-node;
4764 * if yes, then we'll get "text()", otherwise "text()[1]".
4765 */
4766 if (occur == 0) {
4767 tmp = cur->next;
4768 while (tmp != NULL) {
4769 if ((tmp->type == XML_TEXT_NODE) ||
4770 (tmp->type == XML_CDATA_SECTION_NODE))
4771 {
4772 occur = 1;
4773 break;
4774 }
4775 tmp = tmp->next;
4776 }
4777 } else
4778 occur++;
4779 } else if (cur->type == XML_PI_NODE) {
4780 sep = "/";
4781 snprintf(nametemp, sizeof(nametemp) - 1,
4782 "processing-instruction('%s')", (char *)cur->name);
4783 nametemp[sizeof(nametemp) - 1] = 0;
4784 name = nametemp;
4785
4786 next = cur->parent;
4787
4788 /*
4789 * Thumbler index computation
4790 */
4791 tmp = cur->prev;
4792 while (tmp != NULL) {
4793 if ((tmp->type == XML_PI_NODE) &&
4794 (xmlStrEqual(cur->name, tmp->name)))
4795 occur++;
4796 tmp = tmp->prev;
4797 }
4798 if (occur == 0) {
4799 tmp = cur->next;
4800 while (tmp != NULL && occur == 0) {
4801 if ((tmp->type == XML_PI_NODE) &&
4802 (xmlStrEqual(cur->name, tmp->name)))
4803 occur++;
4804 tmp = tmp->next;
4805 }
4806 if (occur != 0)
4807 occur = 1;
4808 } else
4809 occur++;
4810
4811 } else if (cur->type == XML_ATTRIBUTE_NODE) {
4812 sep = "/@";
4813 name = (const char *) (((xmlAttrPtr) cur)->name);
4814 if (cur->ns) {
4815 if (cur->ns->prefix != NULL)
4816 snprintf(nametemp, sizeof(nametemp) - 1, "%s:%s",
4817 (char *)cur->ns->prefix, (char *)cur->name);
4818 else
4819 snprintf(nametemp, sizeof(nametemp) - 1, "%s",
4820 (char *)cur->name);
4821 nametemp[sizeof(nametemp) - 1] = 0;
4822 name = nametemp;
4823 }
4824 next = ((xmlAttrPtr) cur)->parent;
4825 } else {
4826 next = cur->parent;
4827 }
4828
4829 /*
4830 * Make sure there is enough room
4831 */
4832 if (xmlStrlen(buffer) + sizeof(nametemp) + 20 > buf_len) {
4833 buf_len =
4834 2 * buf_len + xmlStrlen(buffer) + sizeof(nametemp) + 20;
4835 temp = (xmlChar *) xmlRealloc(buffer, buf_len);
4836 if (temp == NULL) {
4837 xmlTreeErrMemory("getting node path");
4838 xmlFree(buf);
4839 xmlFree(buffer);
4840 return (NULL);
4841 }
4842 buffer = temp;
4843 temp = (xmlChar *) xmlRealloc(buf, buf_len);
4844 if (temp == NULL) {
4845 xmlTreeErrMemory("getting node path");
4846 xmlFree(buf);
4847 xmlFree(buffer);
4848 return (NULL);
4849 }
4850 buf = temp;
4851 }
4852 if (occur == 0)
4853 snprintf((char *) buf, buf_len, "%s%s%s",
4854 sep, name, (char *) buffer);
4855 else
4856 snprintf((char *) buf, buf_len, "%s%s[%d]%s",
4857 sep, name, occur, (char *) buffer);
4858 snprintf((char *) buffer, buf_len, "%s", (char *)buf);
4859 cur = next;
4860 } while (cur != NULL);
4861 xmlFree(buf);
4862 return (buffer);
4863 }
4864 #endif /* LIBXML_TREE_ENABLED */
4865
4866 /**
4867 * xmlDocGetRootElement:
4868 * @doc: the document
4869 *
4870 * Get the root element of the document (doc->children is a list
4871 * containing possibly comments, PIs, etc ...).
4872 *
4873 * Returns the #xmlNodePtr for the root or NULL
4874 */
4875 xmlNodePtr
xmlDocGetRootElement(const xmlDoc * doc)4876 xmlDocGetRootElement(const xmlDoc *doc) {
4877 xmlNodePtr ret;
4878
4879 if (doc == NULL) return(NULL);
4880 ret = doc->children;
4881 while (ret != NULL) {
4882 if (ret->type == XML_ELEMENT_NODE)
4883 return(ret);
4884 ret = ret->next;
4885 }
4886 return(ret);
4887 }
4888
4889 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_WRITER_ENABLED)
4890 /**
4891 * xmlDocSetRootElement:
4892 * @doc: the document
4893 * @root: the new document root element, if root is NULL no action is taken,
4894 * to remove a node from a document use xmlUnlinkNode(root) instead.
4895 *
4896 * Set the root element of the document (doc->children is a list
4897 * containing possibly comments, PIs, etc ...).
4898 *
4899 * Returns the old root element if any was found, NULL if root was NULL
4900 */
4901 xmlNodePtr
xmlDocSetRootElement(xmlDocPtr doc,xmlNodePtr root)4902 xmlDocSetRootElement(xmlDocPtr doc, xmlNodePtr root) {
4903 xmlNodePtr old = NULL;
4904
4905 if (doc == NULL) return(NULL);
4906 if ((root == NULL) || (root->type == XML_NAMESPACE_DECL))
4907 return(NULL);
4908 xmlUnlinkNode(root);
4909 xmlSetTreeDoc(root, doc);
4910 root->parent = (xmlNodePtr) doc;
4911 old = doc->children;
4912 while (old != NULL) {
4913 if (old->type == XML_ELEMENT_NODE)
4914 break;
4915 old = old->next;
4916 }
4917 if (old == NULL) {
4918 if (doc->children == NULL) {
4919 doc->children = root;
4920 doc->last = root;
4921 } else {
4922 xmlAddSibling(doc->children, root);
4923 }
4924 } else {
4925 xmlReplaceNode(old, root);
4926 }
4927 return(old);
4928 }
4929 #endif
4930
4931 #if defined(LIBXML_TREE_ENABLED)
4932 /**
4933 * xmlNodeSetLang:
4934 * @cur: the node being changed
4935 * @lang: the language description
4936 *
4937 * Set the language of a node, i.e. the values of the xml:lang
4938 * attribute.
4939 */
4940 void
xmlNodeSetLang(xmlNodePtr cur,const xmlChar * lang)4941 xmlNodeSetLang(xmlNodePtr cur, const xmlChar *lang) {
4942 xmlNsPtr ns;
4943
4944 if (cur == NULL) return;
4945 switch(cur->type) {
4946 case XML_TEXT_NODE:
4947 case XML_CDATA_SECTION_NODE:
4948 case XML_COMMENT_NODE:
4949 case XML_DOCUMENT_NODE:
4950 case XML_DOCUMENT_TYPE_NODE:
4951 case XML_DOCUMENT_FRAG_NODE:
4952 case XML_NOTATION_NODE:
4953 case XML_HTML_DOCUMENT_NODE:
4954 case XML_DTD_NODE:
4955 case XML_ELEMENT_DECL:
4956 case XML_ATTRIBUTE_DECL:
4957 case XML_ENTITY_DECL:
4958 case XML_PI_NODE:
4959 case XML_ENTITY_REF_NODE:
4960 case XML_ENTITY_NODE:
4961 case XML_NAMESPACE_DECL:
4962 #ifdef LIBXML_DOCB_ENABLED
4963 case XML_DOCB_DOCUMENT_NODE:
4964 #endif
4965 case XML_XINCLUDE_START:
4966 case XML_XINCLUDE_END:
4967 return;
4968 case XML_ELEMENT_NODE:
4969 case XML_ATTRIBUTE_NODE:
4970 break;
4971 }
4972 ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
4973 if (ns == NULL)
4974 return;
4975 xmlSetNsProp(cur, ns, BAD_CAST "lang", lang);
4976 }
4977 #endif /* LIBXML_TREE_ENABLED */
4978
4979 /**
4980 * xmlNodeGetLang:
4981 * @cur: the node being checked
4982 *
4983 * Searches the language of a node, i.e. the values of the xml:lang
4984 * attribute or the one carried by the nearest ancestor.
4985 *
4986 * Returns a pointer to the lang value, or NULL if not found
4987 * It's up to the caller to free the memory with xmlFree().
4988 */
4989 xmlChar *
xmlNodeGetLang(const xmlNode * cur)4990 xmlNodeGetLang(const xmlNode *cur) {
4991 xmlChar *lang;
4992
4993 if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL))
4994 return(NULL);
4995 while (cur != NULL) {
4996 lang = xmlGetNsProp(cur, BAD_CAST "lang", XML_XML_NAMESPACE);
4997 if (lang != NULL)
4998 return(lang);
4999 cur = cur->parent;
5000 }
5001 return(NULL);
5002 }
5003
5004
5005 #ifdef LIBXML_TREE_ENABLED
5006 /**
5007 * xmlNodeSetSpacePreserve:
5008 * @cur: the node being changed
5009 * @val: the xml:space value ("0": default, 1: "preserve")
5010 *
5011 * Set (or reset) the space preserving behaviour of a node, i.e. the
5012 * value of the xml:space attribute.
5013 */
5014 void
xmlNodeSetSpacePreserve(xmlNodePtr cur,int val)5015 xmlNodeSetSpacePreserve(xmlNodePtr cur, int val) {
5016 xmlNsPtr ns;
5017
5018 if (cur == NULL) return;
5019 switch(cur->type) {
5020 case XML_TEXT_NODE:
5021 case XML_CDATA_SECTION_NODE:
5022 case XML_COMMENT_NODE:
5023 case XML_DOCUMENT_NODE:
5024 case XML_DOCUMENT_TYPE_NODE:
5025 case XML_DOCUMENT_FRAG_NODE:
5026 case XML_NOTATION_NODE:
5027 case XML_HTML_DOCUMENT_NODE:
5028 case XML_DTD_NODE:
5029 case XML_ELEMENT_DECL:
5030 case XML_ATTRIBUTE_DECL:
5031 case XML_ENTITY_DECL:
5032 case XML_PI_NODE:
5033 case XML_ENTITY_REF_NODE:
5034 case XML_ENTITY_NODE:
5035 case XML_NAMESPACE_DECL:
5036 case XML_XINCLUDE_START:
5037 case XML_XINCLUDE_END:
5038 #ifdef LIBXML_DOCB_ENABLED
5039 case XML_DOCB_DOCUMENT_NODE:
5040 #endif
5041 return;
5042 case XML_ELEMENT_NODE:
5043 case XML_ATTRIBUTE_NODE:
5044 break;
5045 }
5046 ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
5047 if (ns == NULL)
5048 return;
5049 switch (val) {
5050 case 0:
5051 xmlSetNsProp(cur, ns, BAD_CAST "space", BAD_CAST "default");
5052 break;
5053 case 1:
5054 xmlSetNsProp(cur, ns, BAD_CAST "space", BAD_CAST "preserve");
5055 break;
5056 }
5057 }
5058 #endif /* LIBXML_TREE_ENABLED */
5059
5060 /**
5061 * xmlNodeGetSpacePreserve:
5062 * @cur: the node being checked
5063 *
5064 * Searches the space preserving behaviour of a node, i.e. the values
5065 * of the xml:space attribute or the one carried by the nearest
5066 * ancestor.
5067 *
5068 * Returns -1 if xml:space is not inherited, 0 if "default", 1 if "preserve"
5069 */
5070 int
xmlNodeGetSpacePreserve(const xmlNode * cur)5071 xmlNodeGetSpacePreserve(const xmlNode *cur) {
5072 xmlChar *space;
5073
5074 if ((cur == NULL) || (cur->type != XML_ELEMENT_NODE))
5075 return(-1);
5076 while (cur != NULL) {
5077 space = xmlGetNsProp(cur, BAD_CAST "space", XML_XML_NAMESPACE);
5078 if (space != NULL) {
5079 if (xmlStrEqual(space, BAD_CAST "preserve")) {
5080 xmlFree(space);
5081 return(1);
5082 }
5083 if (xmlStrEqual(space, BAD_CAST "default")) {
5084 xmlFree(space);
5085 return(0);
5086 }
5087 xmlFree(space);
5088 }
5089 cur = cur->parent;
5090 }
5091 return(-1);
5092 }
5093
5094 #ifdef LIBXML_TREE_ENABLED
5095 /**
5096 * xmlNodeSetName:
5097 * @cur: the node being changed
5098 * @name: the new tag name
5099 *
5100 * Set (or reset) the name of a node.
5101 */
5102 void
xmlNodeSetName(xmlNodePtr cur,const xmlChar * name)5103 xmlNodeSetName(xmlNodePtr cur, const xmlChar *name) {
5104 xmlDocPtr doc;
5105 xmlDictPtr dict;
5106 const xmlChar *freeme = NULL;
5107
5108 if (cur == NULL) return;
5109 if (name == NULL) return;
5110 switch(cur->type) {
5111 case XML_TEXT_NODE:
5112 case XML_CDATA_SECTION_NODE:
5113 case XML_COMMENT_NODE:
5114 case XML_DOCUMENT_TYPE_NODE:
5115 case XML_DOCUMENT_FRAG_NODE:
5116 case XML_NOTATION_NODE:
5117 case XML_HTML_DOCUMENT_NODE:
5118 case XML_NAMESPACE_DECL:
5119 case XML_XINCLUDE_START:
5120 case XML_XINCLUDE_END:
5121 #ifdef LIBXML_DOCB_ENABLED
5122 case XML_DOCB_DOCUMENT_NODE:
5123 #endif
5124 return;
5125 case XML_ELEMENT_NODE:
5126 case XML_ATTRIBUTE_NODE:
5127 case XML_PI_NODE:
5128 case XML_ENTITY_REF_NODE:
5129 case XML_ENTITY_NODE:
5130 case XML_DTD_NODE:
5131 case XML_DOCUMENT_NODE:
5132 case XML_ELEMENT_DECL:
5133 case XML_ATTRIBUTE_DECL:
5134 case XML_ENTITY_DECL:
5135 break;
5136 }
5137 doc = cur->doc;
5138 if (doc != NULL)
5139 dict = doc->dict;
5140 else
5141 dict = NULL;
5142 if (dict != NULL) {
5143 if ((cur->name != NULL) && (!xmlDictOwns(dict, cur->name)))
5144 freeme = cur->name;
5145 cur->name = xmlDictLookup(dict, name, -1);
5146 } else {
5147 if (cur->name != NULL)
5148 freeme = cur->name;
5149 cur->name = xmlStrdup(name);
5150 }
5151
5152 if (freeme)
5153 xmlFree((xmlChar *) freeme);
5154 }
5155 #endif
5156
5157 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XINCLUDE_ENABLED)
5158 /**
5159 * xmlNodeSetBase:
5160 * @cur: the node being changed
5161 * @uri: the new base URI
5162 *
5163 * Set (or reset) the base URI of a node, i.e. the value of the
5164 * xml:base attribute.
5165 */
5166 void
xmlNodeSetBase(xmlNodePtr cur,const xmlChar * uri)5167 xmlNodeSetBase(xmlNodePtr cur, const xmlChar* uri) {
5168 xmlNsPtr ns;
5169 xmlChar* fixed;
5170
5171 if (cur == NULL) return;
5172 switch(cur->type) {
5173 case XML_TEXT_NODE:
5174 case XML_CDATA_SECTION_NODE:
5175 case XML_COMMENT_NODE:
5176 case XML_DOCUMENT_TYPE_NODE:
5177 case XML_DOCUMENT_FRAG_NODE:
5178 case XML_NOTATION_NODE:
5179 case XML_DTD_NODE:
5180 case XML_ELEMENT_DECL:
5181 case XML_ATTRIBUTE_DECL:
5182 case XML_ENTITY_DECL:
5183 case XML_PI_NODE:
5184 case XML_ENTITY_REF_NODE:
5185 case XML_ENTITY_NODE:
5186 case XML_NAMESPACE_DECL:
5187 case XML_XINCLUDE_START:
5188 case XML_XINCLUDE_END:
5189 return;
5190 case XML_ELEMENT_NODE:
5191 case XML_ATTRIBUTE_NODE:
5192 break;
5193 case XML_DOCUMENT_NODE:
5194 #ifdef LIBXML_DOCB_ENABLED
5195 case XML_DOCB_DOCUMENT_NODE:
5196 #endif
5197 case XML_HTML_DOCUMENT_NODE: {
5198 xmlDocPtr doc = (xmlDocPtr) cur;
5199
5200 if (doc->URL != NULL)
5201 xmlFree((xmlChar *) doc->URL);
5202 if (uri == NULL)
5203 doc->URL = NULL;
5204 else
5205 doc->URL = xmlPathToURI(uri);
5206 return;
5207 }
5208 }
5209
5210 ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
5211 if (ns == NULL)
5212 return;
5213 fixed = xmlPathToURI(uri);
5214 if (fixed != NULL) {
5215 xmlSetNsProp(cur, ns, BAD_CAST "base", fixed);
5216 xmlFree(fixed);
5217 } else {
5218 xmlSetNsProp(cur, ns, BAD_CAST "base", uri);
5219 }
5220 }
5221 #endif /* LIBXML_TREE_ENABLED */
5222
5223 /**
5224 * xmlNodeGetBase:
5225 * @doc: the document the node pertains to
5226 * @cur: the node being checked
5227 *
5228 * Searches for the BASE URL. The code should work on both XML
5229 * and HTML document even if base mechanisms are completely different.
5230 * It returns the base as defined in RFC 2396 sections
5231 * 5.1.1. Base URI within Document Content
5232 * and
5233 * 5.1.2. Base URI from the Encapsulating Entity
5234 * However it does not return the document base (5.1.3), use
5235 * doc->URL in this case
5236 *
5237 * Returns a pointer to the base URL, or NULL if not found
5238 * It's up to the caller to free the memory with xmlFree().
5239 */
5240 xmlChar *
xmlNodeGetBase(const xmlDoc * doc,const xmlNode * cur)5241 xmlNodeGetBase(const xmlDoc *doc, const xmlNode *cur) {
5242 xmlChar *oldbase = NULL;
5243 xmlChar *base, *newbase;
5244
5245 if ((cur == NULL) && (doc == NULL))
5246 return(NULL);
5247 if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))
5248 return(NULL);
5249 if (doc == NULL) doc = cur->doc;
5250 if ((doc != NULL) && (doc->type == XML_HTML_DOCUMENT_NODE)) {
5251 cur = doc->children;
5252 while ((cur != NULL) && (cur->name != NULL)) {
5253 if (cur->type != XML_ELEMENT_NODE) {
5254 cur = cur->next;
5255 continue;
5256 }
5257 if (!xmlStrcasecmp(cur->name, BAD_CAST "html")) {
5258 cur = cur->children;
5259 continue;
5260 }
5261 if (!xmlStrcasecmp(cur->name, BAD_CAST "head")) {
5262 cur = cur->children;
5263 continue;
5264 }
5265 if (!xmlStrcasecmp(cur->name, BAD_CAST "base")) {
5266 return(xmlGetProp(cur, BAD_CAST "href"));
5267 }
5268 cur = cur->next;
5269 }
5270 return(NULL);
5271 }
5272 while (cur != NULL) {
5273 if (cur->type == XML_ENTITY_DECL) {
5274 xmlEntityPtr ent = (xmlEntityPtr) cur;
5275 return(xmlStrdup(ent->URI));
5276 }
5277 if (cur->type == XML_ELEMENT_NODE) {
5278 base = xmlGetNsProp(cur, BAD_CAST "base", XML_XML_NAMESPACE);
5279 if (base != NULL) {
5280 if (oldbase != NULL) {
5281 newbase = xmlBuildURI(oldbase, base);
5282 if (newbase != NULL) {
5283 xmlFree(oldbase);
5284 xmlFree(base);
5285 oldbase = newbase;
5286 } else {
5287 xmlFree(oldbase);
5288 xmlFree(base);
5289 return(NULL);
5290 }
5291 } else {
5292 oldbase = base;
5293 }
5294 if ((!xmlStrncmp(oldbase, BAD_CAST "http://", 7)) ||
5295 (!xmlStrncmp(oldbase, BAD_CAST "ftp://", 6)) ||
5296 (!xmlStrncmp(oldbase, BAD_CAST "urn:", 4)))
5297 return(oldbase);
5298 }
5299 }
5300 cur = cur->parent;
5301 }
5302 if ((doc != NULL) && (doc->URL != NULL)) {
5303 if (oldbase == NULL)
5304 return(xmlStrdup(doc->URL));
5305 newbase = xmlBuildURI(oldbase, doc->URL);
5306 xmlFree(oldbase);
5307 return(newbase);
5308 }
5309 return(oldbase);
5310 }
5311
5312 /**
5313 * xmlNodeBufGetContent:
5314 * @buffer: a buffer
5315 * @cur: the node being read
5316 *
5317 * Read the value of a node @cur, this can be either the text carried
5318 * directly by this node if it's a TEXT node or the aggregate string
5319 * of the values carried by this node child's (TEXT and ENTITY_REF).
5320 * Entity references are substituted.
5321 * Fills up the buffer @buffer with this value
5322 *
5323 * Returns 0 in case of success and -1 in case of error.
5324 */
5325 int
xmlNodeBufGetContent(xmlBufferPtr buffer,const xmlNode * cur)5326 xmlNodeBufGetContent(xmlBufferPtr buffer, const xmlNode *cur)
5327 {
5328 xmlBufPtr buf;
5329 int ret;
5330
5331 if ((cur == NULL) || (buffer == NULL)) return(-1);
5332 buf = xmlBufFromBuffer(buffer);
5333 ret = xmlBufGetNodeContent(buf, cur);
5334 buffer = xmlBufBackToBuffer(buf);
5335 if ((ret < 0) || (buffer == NULL))
5336 return(-1);
5337 return(0);
5338 }
5339
5340 /**
5341 * xmlBufGetNodeContent:
5342 * @buf: a buffer xmlBufPtr
5343 * @cur: the node being read
5344 *
5345 * Read the value of a node @cur, this can be either the text carried
5346 * directly by this node if it's a TEXT node or the aggregate string
5347 * of the values carried by this node child's (TEXT and ENTITY_REF).
5348 * Entity references are substituted.
5349 * Fills up the buffer @buf with this value
5350 *
5351 * Returns 0 in case of success and -1 in case of error.
5352 */
5353 int
xmlBufGetNodeContent(xmlBufPtr buf,const xmlNode * cur)5354 xmlBufGetNodeContent(xmlBufPtr buf, const xmlNode *cur)
5355 {
5356 if ((cur == NULL) || (buf == NULL)) return(-1);
5357 switch (cur->type) {
5358 case XML_CDATA_SECTION_NODE:
5359 case XML_TEXT_NODE:
5360 xmlBufCat(buf, cur->content);
5361 break;
5362 case XML_DOCUMENT_FRAG_NODE:
5363 case XML_ELEMENT_NODE:{
5364 const xmlNode *tmp = cur;
5365
5366 while (tmp != NULL) {
5367 switch (tmp->type) {
5368 case XML_CDATA_SECTION_NODE:
5369 case XML_TEXT_NODE:
5370 if (tmp->content != NULL)
5371 xmlBufCat(buf, tmp->content);
5372 break;
5373 case XML_ENTITY_REF_NODE:
5374 xmlBufGetNodeContent(buf, tmp);
5375 break;
5376 default:
5377 break;
5378 }
5379 /*
5380 * Skip to next node
5381 */
5382 if (tmp->children != NULL) {
5383 if (tmp->children->type != XML_ENTITY_DECL) {
5384 tmp = tmp->children;
5385 continue;
5386 }
5387 }
5388 if (tmp == cur)
5389 break;
5390
5391 if (tmp->next != NULL) {
5392 tmp = tmp->next;
5393 continue;
5394 }
5395
5396 do {
5397 tmp = tmp->parent;
5398 if (tmp == NULL)
5399 break;
5400 if (tmp == cur) {
5401 tmp = NULL;
5402 break;
5403 }
5404 if (tmp->next != NULL) {
5405 tmp = tmp->next;
5406 break;
5407 }
5408 } while (tmp != NULL);
5409 }
5410 break;
5411 }
5412 case XML_ATTRIBUTE_NODE:{
5413 xmlAttrPtr attr = (xmlAttrPtr) cur;
5414 xmlNodePtr tmp = attr->children;
5415
5416 while (tmp != NULL) {
5417 if (tmp->type == XML_TEXT_NODE)
5418 xmlBufCat(buf, tmp->content);
5419 else
5420 xmlBufGetNodeContent(buf, tmp);
5421 tmp = tmp->next;
5422 }
5423 break;
5424 }
5425 case XML_COMMENT_NODE:
5426 case XML_PI_NODE:
5427 xmlBufCat(buf, cur->content);
5428 break;
5429 case XML_ENTITY_REF_NODE:{
5430 xmlEntityPtr ent;
5431 xmlNodePtr tmp;
5432
5433 /* lookup entity declaration */
5434 ent = xmlGetDocEntity(cur->doc, cur->name);
5435 if (ent == NULL)
5436 return(-1);
5437
5438 /* an entity content can be any "well balanced chunk",
5439 * i.e. the result of the content [43] production:
5440 * http://www.w3.org/TR/REC-xml#NT-content
5441 * -> we iterate through child nodes and recursive call
5442 * xmlNodeGetContent() which handles all possible node types */
5443 tmp = ent->children;
5444 while (tmp) {
5445 xmlBufGetNodeContent(buf, tmp);
5446 tmp = tmp->next;
5447 }
5448 break;
5449 }
5450 case XML_ENTITY_NODE:
5451 case XML_DOCUMENT_TYPE_NODE:
5452 case XML_NOTATION_NODE:
5453 case XML_DTD_NODE:
5454 case XML_XINCLUDE_START:
5455 case XML_XINCLUDE_END:
5456 break;
5457 case XML_DOCUMENT_NODE:
5458 #ifdef LIBXML_DOCB_ENABLED
5459 case XML_DOCB_DOCUMENT_NODE:
5460 #endif
5461 case XML_HTML_DOCUMENT_NODE:
5462 cur = cur->children;
5463 while (cur!= NULL) {
5464 if ((cur->type == XML_ELEMENT_NODE) ||
5465 (cur->type == XML_TEXT_NODE) ||
5466 (cur->type == XML_CDATA_SECTION_NODE)) {
5467 xmlBufGetNodeContent(buf, cur);
5468 }
5469 cur = cur->next;
5470 }
5471 break;
5472 case XML_NAMESPACE_DECL:
5473 xmlBufCat(buf, ((xmlNsPtr) cur)->href);
5474 break;
5475 case XML_ELEMENT_DECL:
5476 case XML_ATTRIBUTE_DECL:
5477 case XML_ENTITY_DECL:
5478 break;
5479 }
5480 return(0);
5481 }
5482
5483 /**
5484 * xmlNodeGetContent:
5485 * @cur: the node being read
5486 *
5487 * Read the value of a node, this can be either the text carried
5488 * directly by this node if it's a TEXT node or the aggregate string
5489 * of the values carried by this node child's (TEXT and ENTITY_REF).
5490 * Entity references are substituted.
5491 * Returns a new #xmlChar * or NULL if no content is available.
5492 * It's up to the caller to free the memory with xmlFree().
5493 */
5494 xmlChar *
xmlNodeGetContent(const xmlNode * cur)5495 xmlNodeGetContent(const xmlNode *cur)
5496 {
5497 if (cur == NULL)
5498 return (NULL);
5499 switch (cur->type) {
5500 case XML_DOCUMENT_FRAG_NODE:
5501 case XML_ELEMENT_NODE:{
5502 xmlBufPtr buf;
5503 xmlChar *ret;
5504
5505 buf = xmlBufCreateSize(64);
5506 if (buf == NULL)
5507 return (NULL);
5508 xmlBufGetNodeContent(buf, cur);
5509 ret = xmlBufDetach(buf);
5510 xmlBufFree(buf);
5511 return (ret);
5512 }
5513 case XML_ATTRIBUTE_NODE:
5514 return(xmlGetPropNodeValueInternal((xmlAttrPtr) cur));
5515 case XML_COMMENT_NODE:
5516 case XML_PI_NODE:
5517 if (cur->content != NULL)
5518 return (xmlStrdup(cur->content));
5519 return (NULL);
5520 case XML_ENTITY_REF_NODE:{
5521 xmlEntityPtr ent;
5522 xmlBufPtr buf;
5523 xmlChar *ret;
5524
5525 /* lookup entity declaration */
5526 ent = xmlGetDocEntity(cur->doc, cur->name);
5527 if (ent == NULL)
5528 return (NULL);
5529
5530 buf = xmlBufCreate();
5531 if (buf == NULL)
5532 return (NULL);
5533
5534 xmlBufGetNodeContent(buf, cur);
5535
5536 ret = xmlBufDetach(buf);
5537 xmlBufFree(buf);
5538 return (ret);
5539 }
5540 case XML_ENTITY_NODE:
5541 case XML_DOCUMENT_TYPE_NODE:
5542 case XML_NOTATION_NODE:
5543 case XML_DTD_NODE:
5544 case XML_XINCLUDE_START:
5545 case XML_XINCLUDE_END:
5546 return (NULL);
5547 case XML_DOCUMENT_NODE:
5548 #ifdef LIBXML_DOCB_ENABLED
5549 case XML_DOCB_DOCUMENT_NODE:
5550 #endif
5551 case XML_HTML_DOCUMENT_NODE: {
5552 xmlBufPtr buf;
5553 xmlChar *ret;
5554
5555 buf = xmlBufCreate();
5556 if (buf == NULL)
5557 return (NULL);
5558
5559 xmlBufGetNodeContent(buf, (xmlNodePtr) cur);
5560
5561 ret = xmlBufDetach(buf);
5562 xmlBufFree(buf);
5563 return (ret);
5564 }
5565 case XML_NAMESPACE_DECL: {
5566 xmlChar *tmp;
5567
5568 tmp = xmlStrdup(((xmlNsPtr) cur)->href);
5569 return (tmp);
5570 }
5571 case XML_ELEMENT_DECL:
5572 /* TODO !!! */
5573 return (NULL);
5574 case XML_ATTRIBUTE_DECL:
5575 /* TODO !!! */
5576 return (NULL);
5577 case XML_ENTITY_DECL:
5578 /* TODO !!! */
5579 return (NULL);
5580 case XML_CDATA_SECTION_NODE:
5581 case XML_TEXT_NODE:
5582 if (cur->content != NULL)
5583 return (xmlStrdup(cur->content));
5584 return (NULL);
5585 }
5586 return (NULL);
5587 }
5588
5589 /**
5590 * xmlNodeSetContent:
5591 * @cur: the node being modified
5592 * @content: the new value of the content
5593 *
5594 * Replace the content of a node.
5595 * NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity
5596 * references, but XML special chars need to be escaped first by using
5597 * xmlEncodeEntitiesReentrant() resp. xmlEncodeSpecialChars().
5598 */
5599 void
xmlNodeSetContent(xmlNodePtr cur,const xmlChar * content)5600 xmlNodeSetContent(xmlNodePtr cur, const xmlChar *content) {
5601 if (cur == NULL) {
5602 #ifdef DEBUG_TREE
5603 xmlGenericError(xmlGenericErrorContext,
5604 "xmlNodeSetContent : node == NULL\n");
5605 #endif
5606 return;
5607 }
5608 switch (cur->type) {
5609 case XML_DOCUMENT_FRAG_NODE:
5610 case XML_ELEMENT_NODE:
5611 case XML_ATTRIBUTE_NODE:
5612 if (cur->children != NULL) xmlFreeNodeList(cur->children);
5613 cur->children = xmlStringGetNodeList(cur->doc, content);
5614 UPDATE_LAST_CHILD_AND_PARENT(cur)
5615 break;
5616 case XML_TEXT_NODE:
5617 case XML_CDATA_SECTION_NODE:
5618 case XML_ENTITY_REF_NODE:
5619 case XML_ENTITY_NODE:
5620 case XML_PI_NODE:
5621 case XML_COMMENT_NODE:
5622 if ((cur->content != NULL) &&
5623 (cur->content != (xmlChar *) &(cur->properties))) {
5624 if (!((cur->doc != NULL) && (cur->doc->dict != NULL) &&
5625 (xmlDictOwns(cur->doc->dict, cur->content))))
5626 xmlFree(cur->content);
5627 }
5628 if (cur->children != NULL) xmlFreeNodeList(cur->children);
5629 cur->last = cur->children = NULL;
5630 if (content != NULL) {
5631 cur->content = xmlStrdup(content);
5632 } else
5633 cur->content = NULL;
5634 cur->properties = NULL;
5635 cur->nsDef = NULL;
5636 break;
5637 case XML_DOCUMENT_NODE:
5638 case XML_HTML_DOCUMENT_NODE:
5639 case XML_DOCUMENT_TYPE_NODE:
5640 case XML_XINCLUDE_START:
5641 case XML_XINCLUDE_END:
5642 #ifdef LIBXML_DOCB_ENABLED
5643 case XML_DOCB_DOCUMENT_NODE:
5644 #endif
5645 break;
5646 case XML_NOTATION_NODE:
5647 break;
5648 case XML_DTD_NODE:
5649 break;
5650 case XML_NAMESPACE_DECL:
5651 break;
5652 case XML_ELEMENT_DECL:
5653 /* TODO !!! */
5654 break;
5655 case XML_ATTRIBUTE_DECL:
5656 /* TODO !!! */
5657 break;
5658 case XML_ENTITY_DECL:
5659 /* TODO !!! */
5660 break;
5661 }
5662 }
5663
5664 #ifdef LIBXML_TREE_ENABLED
5665 /**
5666 * xmlNodeSetContentLen:
5667 * @cur: the node being modified
5668 * @content: the new value of the content
5669 * @len: the size of @content
5670 *
5671 * Replace the content of a node.
5672 * NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity
5673 * references, but XML special chars need to be escaped first by using
5674 * xmlEncodeEntitiesReentrant() resp. xmlEncodeSpecialChars().
5675 */
5676 void
xmlNodeSetContentLen(xmlNodePtr cur,const xmlChar * content,int len)5677 xmlNodeSetContentLen(xmlNodePtr cur, const xmlChar *content, int len) {
5678 if (cur == NULL) {
5679 #ifdef DEBUG_TREE
5680 xmlGenericError(xmlGenericErrorContext,
5681 "xmlNodeSetContentLen : node == NULL\n");
5682 #endif
5683 return;
5684 }
5685 switch (cur->type) {
5686 case XML_DOCUMENT_FRAG_NODE:
5687 case XML_ELEMENT_NODE:
5688 case XML_ATTRIBUTE_NODE:
5689 if (cur->children != NULL) xmlFreeNodeList(cur->children);
5690 cur->children = xmlStringLenGetNodeList(cur->doc, content, len);
5691 UPDATE_LAST_CHILD_AND_PARENT(cur)
5692 break;
5693 case XML_TEXT_NODE:
5694 case XML_CDATA_SECTION_NODE:
5695 case XML_ENTITY_REF_NODE:
5696 case XML_ENTITY_NODE:
5697 case XML_PI_NODE:
5698 case XML_COMMENT_NODE:
5699 case XML_NOTATION_NODE:
5700 if ((cur->content != NULL) &&
5701 (cur->content != (xmlChar *) &(cur->properties))) {
5702 if (!((cur->doc != NULL) && (cur->doc->dict != NULL) &&
5703 (xmlDictOwns(cur->doc->dict, cur->content))))
5704 xmlFree(cur->content);
5705 }
5706 if (cur->children != NULL) xmlFreeNodeList(cur->children);
5707 cur->children = cur->last = NULL;
5708 if (content != NULL) {
5709 cur->content = xmlStrndup(content, len);
5710 } else
5711 cur->content = NULL;
5712 cur->properties = NULL;
5713 cur->nsDef = NULL;
5714 break;
5715 case XML_DOCUMENT_NODE:
5716 case XML_DTD_NODE:
5717 case XML_HTML_DOCUMENT_NODE:
5718 case XML_DOCUMENT_TYPE_NODE:
5719 case XML_NAMESPACE_DECL:
5720 case XML_XINCLUDE_START:
5721 case XML_XINCLUDE_END:
5722 #ifdef LIBXML_DOCB_ENABLED
5723 case XML_DOCB_DOCUMENT_NODE:
5724 #endif
5725 break;
5726 case XML_ELEMENT_DECL:
5727 /* TODO !!! */
5728 break;
5729 case XML_ATTRIBUTE_DECL:
5730 /* TODO !!! */
5731 break;
5732 case XML_ENTITY_DECL:
5733 /* TODO !!! */
5734 break;
5735 }
5736 }
5737 #endif /* LIBXML_TREE_ENABLED */
5738
5739 /**
5740 * xmlNodeAddContentLen:
5741 * @cur: the node being modified
5742 * @content: extra content
5743 * @len: the size of @content
5744 *
5745 * Append the extra substring to the node content.
5746 * NOTE: In contrast to xmlNodeSetContentLen(), @content is supposed to be
5747 * raw text, so unescaped XML special chars are allowed, entity
5748 * references are not supported.
5749 */
5750 void
xmlNodeAddContentLen(xmlNodePtr cur,const xmlChar * content,int len)5751 xmlNodeAddContentLen(xmlNodePtr cur, const xmlChar *content, int len) {
5752 if (cur == NULL) {
5753 #ifdef DEBUG_TREE
5754 xmlGenericError(xmlGenericErrorContext,
5755 "xmlNodeAddContentLen : node == NULL\n");
5756 #endif
5757 return;
5758 }
5759 if (len <= 0) return;
5760 switch (cur->type) {
5761 case XML_DOCUMENT_FRAG_NODE:
5762 case XML_ELEMENT_NODE: {
5763 xmlNodePtr last, newNode, tmp;
5764
5765 last = cur->last;
5766 newNode = xmlNewTextLen(content, len);
5767 if (newNode != NULL) {
5768 tmp = xmlAddChild(cur, newNode);
5769 if (tmp != newNode)
5770 return;
5771 if ((last != NULL) && (last->next == newNode)) {
5772 xmlTextMerge(last, newNode);
5773 }
5774 }
5775 break;
5776 }
5777 case XML_ATTRIBUTE_NODE:
5778 break;
5779 case XML_TEXT_NODE:
5780 case XML_CDATA_SECTION_NODE:
5781 case XML_ENTITY_REF_NODE:
5782 case XML_ENTITY_NODE:
5783 case XML_PI_NODE:
5784 case XML_COMMENT_NODE:
5785 case XML_NOTATION_NODE:
5786 if (content != NULL) {
5787 if ((cur->content == (xmlChar *) &(cur->properties)) ||
5788 ((cur->doc != NULL) && (cur->doc->dict != NULL) &&
5789 xmlDictOwns(cur->doc->dict, cur->content))) {
5790 cur->content = xmlStrncatNew(cur->content, content, len);
5791 cur->properties = NULL;
5792 cur->nsDef = NULL;
5793 break;
5794 }
5795 cur->content = xmlStrncat(cur->content, content, len);
5796 }
5797 case XML_DOCUMENT_NODE:
5798 case XML_DTD_NODE:
5799 case XML_HTML_DOCUMENT_NODE:
5800 case XML_DOCUMENT_TYPE_NODE:
5801 case XML_NAMESPACE_DECL:
5802 case XML_XINCLUDE_START:
5803 case XML_XINCLUDE_END:
5804 #ifdef LIBXML_DOCB_ENABLED
5805 case XML_DOCB_DOCUMENT_NODE:
5806 #endif
5807 break;
5808 case XML_ELEMENT_DECL:
5809 case XML_ATTRIBUTE_DECL:
5810 case XML_ENTITY_DECL:
5811 break;
5812 }
5813 }
5814
5815 /**
5816 * xmlNodeAddContent:
5817 * @cur: the node being modified
5818 * @content: extra content
5819 *
5820 * Append the extra substring to the node content.
5821 * NOTE: In contrast to xmlNodeSetContent(), @content is supposed to be
5822 * raw text, so unescaped XML special chars are allowed, entity
5823 * references are not supported.
5824 */
5825 void
xmlNodeAddContent(xmlNodePtr cur,const xmlChar * content)5826 xmlNodeAddContent(xmlNodePtr cur, const xmlChar *content) {
5827 int len;
5828
5829 if (cur == NULL) {
5830 #ifdef DEBUG_TREE
5831 xmlGenericError(xmlGenericErrorContext,
5832 "xmlNodeAddContent : node == NULL\n");
5833 #endif
5834 return;
5835 }
5836 if (content == NULL) return;
5837 len = xmlStrlen(content);
5838 xmlNodeAddContentLen(cur, content, len);
5839 }
5840
5841 /**
5842 * xmlTextMerge:
5843 * @first: the first text node
5844 * @second: the second text node being merged
5845 *
5846 * Merge two text nodes into one
5847 * Returns the first text node augmented
5848 */
5849 xmlNodePtr
xmlTextMerge(xmlNodePtr first,xmlNodePtr second)5850 xmlTextMerge(xmlNodePtr first, xmlNodePtr second) {
5851 if (first == NULL) return(second);
5852 if (second == NULL) return(first);
5853 if (first->type != XML_TEXT_NODE) return(first);
5854 if (second->type != XML_TEXT_NODE) return(first);
5855 if (second->name != first->name)
5856 return(first);
5857 xmlNodeAddContent(first, second->content);
5858 xmlUnlinkNode(second);
5859 xmlFreeNode(second);
5860 return(first);
5861 }
5862
5863 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XPATH_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
5864 /**
5865 * xmlGetNsList:
5866 * @doc: the document
5867 * @node: the current node
5868 *
5869 * Search all the namespace applying to a given element.
5870 * Returns an NULL terminated array of all the #xmlNsPtr found
5871 * that need to be freed by the caller or NULL if no
5872 * namespace if defined
5873 */
5874 xmlNsPtr *
xmlGetNsList(const xmlDoc * doc ATTRIBUTE_UNUSED,const xmlNode * node)5875 xmlGetNsList(const xmlDoc *doc ATTRIBUTE_UNUSED, const xmlNode *node)
5876 {
5877 xmlNsPtr cur;
5878 xmlNsPtr *ret = NULL;
5879 int nbns = 0;
5880 int maxns = 10;
5881 int i;
5882
5883 if ((node == NULL) || (node->type == XML_NAMESPACE_DECL))
5884 return(NULL);
5885
5886 while (node != NULL) {
5887 if (node->type == XML_ELEMENT_NODE) {
5888 cur = node->nsDef;
5889 while (cur != NULL) {
5890 if (ret == NULL) {
5891 ret =
5892 (xmlNsPtr *) xmlMalloc((maxns + 1) *
5893 sizeof(xmlNsPtr));
5894 if (ret == NULL) {
5895 xmlTreeErrMemory("getting namespace list");
5896 return (NULL);
5897 }
5898 ret[nbns] = NULL;
5899 }
5900 for (i = 0; i < nbns; i++) {
5901 if ((cur->prefix == ret[i]->prefix) ||
5902 (xmlStrEqual(cur->prefix, ret[i]->prefix)))
5903 break;
5904 }
5905 if (i >= nbns) {
5906 if (nbns >= maxns) {
5907 maxns *= 2;
5908 ret = (xmlNsPtr *) xmlRealloc(ret,
5909 (maxns +
5910 1) *
5911 sizeof(xmlNsPtr));
5912 if (ret == NULL) {
5913 xmlTreeErrMemory("getting namespace list");
5914 return (NULL);
5915 }
5916 }
5917 ret[nbns++] = cur;
5918 ret[nbns] = NULL;
5919 }
5920
5921 cur = cur->next;
5922 }
5923 }
5924 node = node->parent;
5925 }
5926 return (ret);
5927 }
5928 #endif /* LIBXML_TREE_ENABLED */
5929
5930 /*
5931 * xmlTreeEnsureXMLDecl:
5932 * @doc: the doc
5933 *
5934 * Ensures that there is an XML namespace declaration on the doc.
5935 *
5936 * Returns the XML ns-struct or NULL on API and internal errors.
5937 */
5938 static xmlNsPtr
xmlTreeEnsureXMLDecl(xmlDocPtr doc)5939 xmlTreeEnsureXMLDecl(xmlDocPtr doc)
5940 {
5941 if (doc == NULL)
5942 return (NULL);
5943 if (doc->oldNs != NULL)
5944 return (doc->oldNs);
5945 {
5946 xmlNsPtr ns;
5947 ns = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
5948 if (ns == NULL) {
5949 xmlTreeErrMemory(
5950 "allocating the XML namespace");
5951 return (NULL);
5952 }
5953 memset(ns, 0, sizeof(xmlNs));
5954 ns->type = XML_LOCAL_NAMESPACE;
5955 ns->href = xmlStrdup(XML_XML_NAMESPACE);
5956 ns->prefix = xmlStrdup((const xmlChar *)"xml");
5957 doc->oldNs = ns;
5958 return (ns);
5959 }
5960 }
5961
5962 /**
5963 * xmlSearchNs:
5964 * @doc: the document
5965 * @node: the current node
5966 * @nameSpace: the namespace prefix
5967 *
5968 * Search a Ns registered under a given name space for a document.
5969 * recurse on the parents until it finds the defined namespace
5970 * or return NULL otherwise.
5971 * @nameSpace can be NULL, this is a search for the default namespace.
5972 * We don't allow to cross entities boundaries. If you don't declare
5973 * the namespace within those you will be in troubles !!! A warning
5974 * is generated to cover this case.
5975 *
5976 * Returns the namespace pointer or NULL.
5977 */
5978 xmlNsPtr
xmlSearchNs(xmlDocPtr doc,xmlNodePtr node,const xmlChar * nameSpace)5979 xmlSearchNs(xmlDocPtr doc, xmlNodePtr node, const xmlChar *nameSpace) {
5980
5981 xmlNsPtr cur;
5982 const xmlNode *orig = node;
5983
5984 if ((node == NULL) || (node->type == XML_NAMESPACE_DECL)) return(NULL);
5985 if ((nameSpace != NULL) &&
5986 (xmlStrEqual(nameSpace, (const xmlChar *)"xml"))) {
5987 if ((doc == NULL) && (node->type == XML_ELEMENT_NODE)) {
5988 /*
5989 * The XML-1.0 namespace is normally held on the root
5990 * element. In this case exceptionally create it on the
5991 * node element.
5992 */
5993 cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
5994 if (cur == NULL) {
5995 xmlTreeErrMemory("searching namespace");
5996 return(NULL);
5997 }
5998 memset(cur, 0, sizeof(xmlNs));
5999 cur->type = XML_LOCAL_NAMESPACE;
6000 cur->href = xmlStrdup(XML_XML_NAMESPACE);
6001 cur->prefix = xmlStrdup((const xmlChar *)"xml");
6002 cur->next = node->nsDef;
6003 node->nsDef = cur;
6004 return(cur);
6005 }
6006 if (doc == NULL) {
6007 doc = node->doc;
6008 if (doc == NULL)
6009 return(NULL);
6010 }
6011 /*
6012 * Return the XML namespace declaration held by the doc.
6013 */
6014 if (doc->oldNs == NULL)
6015 return(xmlTreeEnsureXMLDecl(doc));
6016 else
6017 return(doc->oldNs);
6018 }
6019 while (node != NULL) {
6020 if ((node->type == XML_ENTITY_REF_NODE) ||
6021 (node->type == XML_ENTITY_NODE) ||
6022 (node->type == XML_ENTITY_DECL))
6023 return(NULL);
6024 if (node->type == XML_ELEMENT_NODE) {
6025 cur = node->nsDef;
6026 while (cur != NULL) {
6027 if ((cur->prefix == NULL) && (nameSpace == NULL) &&
6028 (cur->href != NULL))
6029 return(cur);
6030 if ((cur->prefix != NULL) && (nameSpace != NULL) &&
6031 (cur->href != NULL) &&
6032 (xmlStrEqual(cur->prefix, nameSpace)))
6033 return(cur);
6034 cur = cur->next;
6035 }
6036 if (orig != node) {
6037 cur = node->ns;
6038 if (cur != NULL) {
6039 if ((cur->prefix == NULL) && (nameSpace == NULL) &&
6040 (cur->href != NULL))
6041 return(cur);
6042 if ((cur->prefix != NULL) && (nameSpace != NULL) &&
6043 (cur->href != NULL) &&
6044 (xmlStrEqual(cur->prefix, nameSpace)))
6045 return(cur);
6046 }
6047 }
6048 }
6049 node = node->parent;
6050 }
6051 return(NULL);
6052 }
6053
6054 /**
6055 * xmlNsInScope:
6056 * @doc: the document
6057 * @node: the current node
6058 * @ancestor: the ancestor carrying the namespace
6059 * @prefix: the namespace prefix
6060 *
6061 * Verify that the given namespace held on @ancestor is still in scope
6062 * on node.
6063 *
6064 * Returns 1 if true, 0 if false and -1 in case of error.
6065 */
6066 static int
xmlNsInScope(xmlDocPtr doc ATTRIBUTE_UNUSED,xmlNodePtr node,xmlNodePtr ancestor,const xmlChar * prefix)6067 xmlNsInScope(xmlDocPtr doc ATTRIBUTE_UNUSED, xmlNodePtr node,
6068 xmlNodePtr ancestor, const xmlChar * prefix)
6069 {
6070 xmlNsPtr tst;
6071
6072 while ((node != NULL) && (node != ancestor)) {
6073 if ((node->type == XML_ENTITY_REF_NODE) ||
6074 (node->type == XML_ENTITY_NODE) ||
6075 (node->type == XML_ENTITY_DECL))
6076 return (-1);
6077 if (node->type == XML_ELEMENT_NODE) {
6078 tst = node->nsDef;
6079 while (tst != NULL) {
6080 if ((tst->prefix == NULL)
6081 && (prefix == NULL))
6082 return (0);
6083 if ((tst->prefix != NULL)
6084 && (prefix != NULL)
6085 && (xmlStrEqual(tst->prefix, prefix)))
6086 return (0);
6087 tst = tst->next;
6088 }
6089 }
6090 node = node->parent;
6091 }
6092 if (node != ancestor)
6093 return (-1);
6094 return (1);
6095 }
6096
6097 /**
6098 * xmlSearchNsByHref:
6099 * @doc: the document
6100 * @node: the current node
6101 * @href: the namespace value
6102 *
6103 * Search a Ns aliasing a given URI. Recurse on the parents until it finds
6104 * the defined namespace or return NULL otherwise.
6105 * Returns the namespace pointer or NULL.
6106 */
6107 xmlNsPtr
xmlSearchNsByHref(xmlDocPtr doc,xmlNodePtr node,const xmlChar * href)6108 xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const xmlChar * href)
6109 {
6110 xmlNsPtr cur;
6111 xmlNodePtr orig = node;
6112 int is_attr;
6113
6114 if ((node == NULL) || (node->type == XML_NAMESPACE_DECL) || (href == NULL))
6115 return (NULL);
6116 if (xmlStrEqual(href, XML_XML_NAMESPACE)) {
6117 /*
6118 * Only the document can hold the XML spec namespace.
6119 */
6120 if ((doc == NULL) && (node->type == XML_ELEMENT_NODE)) {
6121 /*
6122 * The XML-1.0 namespace is normally held on the root
6123 * element. In this case exceptionally create it on the
6124 * node element.
6125 */
6126 cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
6127 if (cur == NULL) {
6128 xmlTreeErrMemory("searching namespace");
6129 return (NULL);
6130 }
6131 memset(cur, 0, sizeof(xmlNs));
6132 cur->type = XML_LOCAL_NAMESPACE;
6133 cur->href = xmlStrdup(XML_XML_NAMESPACE);
6134 cur->prefix = xmlStrdup((const xmlChar *) "xml");
6135 cur->next = node->nsDef;
6136 node->nsDef = cur;
6137 return (cur);
6138 }
6139 if (doc == NULL) {
6140 doc = node->doc;
6141 if (doc == NULL)
6142 return(NULL);
6143 }
6144 /*
6145 * Return the XML namespace declaration held by the doc.
6146 */
6147 if (doc->oldNs == NULL)
6148 return(xmlTreeEnsureXMLDecl(doc));
6149 else
6150 return(doc->oldNs);
6151 }
6152 is_attr = (node->type == XML_ATTRIBUTE_NODE);
6153 while (node != NULL) {
6154 if ((node->type == XML_ENTITY_REF_NODE) ||
6155 (node->type == XML_ENTITY_NODE) ||
6156 (node->type == XML_ENTITY_DECL))
6157 return (NULL);
6158 if (node->type == XML_ELEMENT_NODE) {
6159 cur = node->nsDef;
6160 while (cur != NULL) {
6161 if ((cur->href != NULL) && (href != NULL) &&
6162 (xmlStrEqual(cur->href, href))) {
6163 if (((!is_attr) || (cur->prefix != NULL)) &&
6164 (xmlNsInScope(doc, orig, node, cur->prefix) == 1))
6165 return (cur);
6166 }
6167 cur = cur->next;
6168 }
6169 if (orig != node) {
6170 cur = node->ns;
6171 if (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 }
6179 }
6180 }
6181 node = node->parent;
6182 }
6183 return (NULL);
6184 }
6185
6186 /**
6187 * xmlNewReconciliedNs:
6188 * @doc: the document
6189 * @tree: a node expected to hold the new namespace
6190 * @ns: the original namespace
6191 *
6192 * This function tries to locate a namespace definition in a tree
6193 * ancestors, or create a new namespace definition node similar to
6194 * @ns trying to reuse the same prefix. However if the given prefix is
6195 * null (default namespace) or reused within the subtree defined by
6196 * @tree or on one of its ancestors then a new prefix is generated.
6197 * Returns the (new) namespace definition or NULL in case of error
6198 */
6199 static xmlNsPtr
xmlNewReconciliedNs(xmlDocPtr doc,xmlNodePtr tree,xmlNsPtr ns)6200 xmlNewReconciliedNs(xmlDocPtr doc, xmlNodePtr tree, xmlNsPtr ns) {
6201 xmlNsPtr def;
6202 xmlChar prefix[50];
6203 int counter = 1;
6204
6205 if ((tree == NULL) || (tree->type != XML_ELEMENT_NODE)) {
6206 #ifdef DEBUG_TREE
6207 xmlGenericError(xmlGenericErrorContext,
6208 "xmlNewReconciliedNs : tree == NULL\n");
6209 #endif
6210 return(NULL);
6211 }
6212 if ((ns == NULL) || (ns->type != XML_NAMESPACE_DECL)) {
6213 #ifdef DEBUG_TREE
6214 xmlGenericError(xmlGenericErrorContext,
6215 "xmlNewReconciliedNs : ns == NULL\n");
6216 #endif
6217 return(NULL);
6218 }
6219 /*
6220 * Search an existing namespace definition inherited.
6221 */
6222 def = xmlSearchNsByHref(doc, tree, ns->href);
6223 if (def != NULL)
6224 return(def);
6225
6226 /*
6227 * Find a close prefix which is not already in use.
6228 * Let's strip namespace prefixes longer than 20 chars !
6229 */
6230 if (ns->prefix == NULL)
6231 snprintf((char *) prefix, sizeof(prefix), "default");
6232 else
6233 snprintf((char *) prefix, sizeof(prefix), "%.20s", (char *)ns->prefix);
6234
6235 def = xmlSearchNs(doc, tree, prefix);
6236 while (def != NULL) {
6237 if (counter > 1000) return(NULL);
6238 if (ns->prefix == NULL)
6239 snprintf((char *) prefix, sizeof(prefix), "default%d", counter++);
6240 else
6241 snprintf((char *) prefix, sizeof(prefix), "%.20s%d",
6242 (char *)ns->prefix, counter++);
6243 def = xmlSearchNs(doc, tree, prefix);
6244 }
6245
6246 /*
6247 * OK, now we are ready to create a new one.
6248 */
6249 def = xmlNewNs(tree, ns->href, prefix);
6250 return(def);
6251 }
6252
6253 #ifdef LIBXML_TREE_ENABLED
6254 /**
6255 * xmlReconciliateNs:
6256 * @doc: the document
6257 * @tree: a node defining the subtree to reconciliate
6258 *
6259 * This function checks that all the namespaces declared within the given
6260 * tree are properly declared. This is needed for example after Copy or Cut
6261 * and then paste operations. The subtree may still hold pointers to
6262 * namespace declarations outside the subtree or invalid/masked. As much
6263 * as possible the function try to reuse the existing namespaces found in
6264 * the new environment. If not possible the new namespaces are redeclared
6265 * on @tree at the top of the given subtree.
6266 * Returns the number of namespace declarations created or -1 in case of error.
6267 */
6268 int
xmlReconciliateNs(xmlDocPtr doc,xmlNodePtr tree)6269 xmlReconciliateNs(xmlDocPtr doc, xmlNodePtr tree) {
6270 xmlNsPtr *oldNs = NULL;
6271 xmlNsPtr *newNs = NULL;
6272 int sizeCache = 0;
6273 int nbCache = 0;
6274
6275 xmlNsPtr n;
6276 xmlNodePtr node = tree;
6277 xmlAttrPtr attr;
6278 int ret = 0, i;
6279
6280 if ((node == NULL) || (node->type != XML_ELEMENT_NODE)) return(-1);
6281 if ((doc == NULL) || (doc->type != XML_DOCUMENT_NODE)) return(-1);
6282 if (node->doc != doc) return(-1);
6283 while (node != NULL) {
6284 /*
6285 * Reconciliate the node namespace
6286 */
6287 if (node->ns != NULL) {
6288 /*
6289 * initialize the cache if needed
6290 */
6291 if (sizeCache == 0) {
6292 sizeCache = 10;
6293 oldNs = (xmlNsPtr *) xmlMalloc(sizeCache *
6294 sizeof(xmlNsPtr));
6295 if (oldNs == NULL) {
6296 xmlTreeErrMemory("fixing namespaces");
6297 return(-1);
6298 }
6299 newNs = (xmlNsPtr *) xmlMalloc(sizeCache *
6300 sizeof(xmlNsPtr));
6301 if (newNs == NULL) {
6302 xmlTreeErrMemory("fixing namespaces");
6303 xmlFree(oldNs);
6304 return(-1);
6305 }
6306 }
6307 for (i = 0;i < nbCache;i++) {
6308 if (oldNs[i] == node->ns) {
6309 node->ns = newNs[i];
6310 break;
6311 }
6312 }
6313 if (i == nbCache) {
6314 /*
6315 * OK we need to recreate a new namespace definition
6316 */
6317 n = xmlNewReconciliedNs(doc, tree, node->ns);
6318 if (n != NULL) { /* :-( what if else ??? */
6319 /*
6320 * check if we need to grow the cache buffers.
6321 */
6322 if (sizeCache <= nbCache) {
6323 sizeCache *= 2;
6324 oldNs = (xmlNsPtr *) xmlRealloc(oldNs, sizeCache *
6325 sizeof(xmlNsPtr));
6326 if (oldNs == NULL) {
6327 xmlTreeErrMemory("fixing namespaces");
6328 xmlFree(newNs);
6329 return(-1);
6330 }
6331 newNs = (xmlNsPtr *) xmlRealloc(newNs, sizeCache *
6332 sizeof(xmlNsPtr));
6333 if (newNs == NULL) {
6334 xmlTreeErrMemory("fixing namespaces");
6335 xmlFree(oldNs);
6336 return(-1);
6337 }
6338 }
6339 newNs[nbCache] = n;
6340 oldNs[nbCache++] = node->ns;
6341 node->ns = n;
6342 }
6343 }
6344 }
6345 /*
6346 * now check for namespace hold by attributes on the node.
6347 */
6348 if (node->type == XML_ELEMENT_NODE) {
6349 attr = node->properties;
6350 while (attr != NULL) {
6351 if (attr->ns != NULL) {
6352 /*
6353 * initialize the cache if needed
6354 */
6355 if (sizeCache == 0) {
6356 sizeCache = 10;
6357 oldNs = (xmlNsPtr *) xmlMalloc(sizeCache *
6358 sizeof(xmlNsPtr));
6359 if (oldNs == NULL) {
6360 xmlTreeErrMemory("fixing namespaces");
6361 return(-1);
6362 }
6363 newNs = (xmlNsPtr *) xmlMalloc(sizeCache *
6364 sizeof(xmlNsPtr));
6365 if (newNs == NULL) {
6366 xmlTreeErrMemory("fixing namespaces");
6367 xmlFree(oldNs);
6368 return(-1);
6369 }
6370 }
6371 for (i = 0;i < nbCache;i++) {
6372 if (oldNs[i] == attr->ns) {
6373 attr->ns = newNs[i];
6374 break;
6375 }
6376 }
6377 if (i == nbCache) {
6378 /*
6379 * OK we need to recreate a new namespace definition
6380 */
6381 n = xmlNewReconciliedNs(doc, tree, attr->ns);
6382 if (n != NULL) { /* :-( what if else ??? */
6383 /*
6384 * check if we need to grow the cache buffers.
6385 */
6386 if (sizeCache <= nbCache) {
6387 sizeCache *= 2;
6388 oldNs = (xmlNsPtr *) xmlRealloc(oldNs,
6389 sizeCache * sizeof(xmlNsPtr));
6390 if (oldNs == NULL) {
6391 xmlTreeErrMemory("fixing namespaces");
6392 xmlFree(newNs);
6393 return(-1);
6394 }
6395 newNs = (xmlNsPtr *) xmlRealloc(newNs,
6396 sizeCache * sizeof(xmlNsPtr));
6397 if (newNs == NULL) {
6398 xmlTreeErrMemory("fixing namespaces");
6399 xmlFree(oldNs);
6400 return(-1);
6401 }
6402 }
6403 newNs[nbCache] = n;
6404 oldNs[nbCache++] = attr->ns;
6405 attr->ns = n;
6406 }
6407 }
6408 }
6409 attr = attr->next;
6410 }
6411 }
6412
6413 /*
6414 * Browse the full subtree, deep first
6415 */
6416 if ((node->children != NULL) && (node->type != XML_ENTITY_REF_NODE)) {
6417 /* deep first */
6418 node = node->children;
6419 } else if ((node != tree) && (node->next != NULL)) {
6420 /* then siblings */
6421 node = node->next;
6422 } else if (node != tree) {
6423 /* go up to parents->next if needed */
6424 while (node != tree) {
6425 if (node->parent != NULL)
6426 node = node->parent;
6427 if ((node != tree) && (node->next != NULL)) {
6428 node = node->next;
6429 break;
6430 }
6431 if (node->parent == NULL) {
6432 node = NULL;
6433 break;
6434 }
6435 }
6436 /* exit condition */
6437 if (node == tree)
6438 node = NULL;
6439 } else
6440 break;
6441 }
6442 if (oldNs != NULL)
6443 xmlFree(oldNs);
6444 if (newNs != NULL)
6445 xmlFree(newNs);
6446 return(ret);
6447 }
6448 #endif /* LIBXML_TREE_ENABLED */
6449
6450 static xmlAttrPtr
xmlGetPropNodeInternal(const xmlNode * node,const xmlChar * name,const xmlChar * nsName,int useDTD)6451 xmlGetPropNodeInternal(const xmlNode *node, const xmlChar *name,
6452 const xmlChar *nsName, int useDTD)
6453 {
6454 xmlAttrPtr prop;
6455
6456 if ((node == NULL) || (node->type != XML_ELEMENT_NODE) || (name == NULL))
6457 return(NULL);
6458
6459 if (node->properties != NULL) {
6460 prop = node->properties;
6461 if (nsName == NULL) {
6462 /*
6463 * We want the attr to be in no namespace.
6464 */
6465 do {
6466 if ((prop->ns == NULL) && xmlStrEqual(prop->name, name)) {
6467 return(prop);
6468 }
6469 prop = prop->next;
6470 } while (prop != NULL);
6471 } else {
6472 /*
6473 * We want the attr to be in the specified namespace.
6474 */
6475 do {
6476 if ((prop->ns != NULL) && xmlStrEqual(prop->name, name) &&
6477 ((prop->ns->href == nsName) ||
6478 xmlStrEqual(prop->ns->href, nsName)))
6479 {
6480 return(prop);
6481 }
6482 prop = prop->next;
6483 } while (prop != NULL);
6484 }
6485 }
6486
6487 #ifdef LIBXML_TREE_ENABLED
6488 if (! useDTD)
6489 return(NULL);
6490 /*
6491 * Check if there is a default/fixed attribute declaration in
6492 * the internal or external subset.
6493 */
6494 if ((node->doc != NULL) && (node->doc->intSubset != NULL)) {
6495 xmlDocPtr doc = node->doc;
6496 xmlAttributePtr attrDecl = NULL;
6497 xmlChar *elemQName, *tmpstr = NULL;
6498
6499 /*
6500 * We need the QName of the element for the DTD-lookup.
6501 */
6502 if ((node->ns != NULL) && (node->ns->prefix != NULL)) {
6503 tmpstr = xmlStrdup(node->ns->prefix);
6504 tmpstr = xmlStrcat(tmpstr, BAD_CAST ":");
6505 tmpstr = xmlStrcat(tmpstr, node->name);
6506 if (tmpstr == NULL)
6507 return(NULL);
6508 elemQName = tmpstr;
6509 } else
6510 elemQName = (xmlChar *) node->name;
6511 if (nsName == NULL) {
6512 /*
6513 * The common and nice case: Attr in no namespace.
6514 */
6515 attrDecl = xmlGetDtdQAttrDesc(doc->intSubset,
6516 elemQName, name, NULL);
6517 if ((attrDecl == NULL) && (doc->extSubset != NULL)) {
6518 attrDecl = xmlGetDtdQAttrDesc(doc->extSubset,
6519 elemQName, name, NULL);
6520 }
6521 } else {
6522 xmlNsPtr *nsList, *cur;
6523
6524 /*
6525 * The ugly case: Search using the prefixes of in-scope
6526 * ns-decls corresponding to @nsName.
6527 */
6528 nsList = xmlGetNsList(node->doc, node);
6529 if (nsList == NULL) {
6530 if (tmpstr != NULL)
6531 xmlFree(tmpstr);
6532 return(NULL);
6533 }
6534 cur = nsList;
6535 while (*cur != NULL) {
6536 if (xmlStrEqual((*cur)->href, nsName)) {
6537 attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, elemQName,
6538 name, (*cur)->prefix);
6539 if (attrDecl)
6540 break;
6541 if (doc->extSubset != NULL) {
6542 attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, elemQName,
6543 name, (*cur)->prefix);
6544 if (attrDecl)
6545 break;
6546 }
6547 }
6548 cur++;
6549 }
6550 xmlFree(nsList);
6551 }
6552 if (tmpstr != NULL)
6553 xmlFree(tmpstr);
6554 /*
6555 * Only default/fixed attrs are relevant.
6556 */
6557 if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))
6558 return((xmlAttrPtr) attrDecl);
6559 }
6560 #endif /* LIBXML_TREE_ENABLED */
6561 return(NULL);
6562 }
6563
6564 static xmlChar*
xmlGetPropNodeValueInternal(const xmlAttr * prop)6565 xmlGetPropNodeValueInternal(const xmlAttr *prop)
6566 {
6567 if (prop == NULL)
6568 return(NULL);
6569 if (prop->type == XML_ATTRIBUTE_NODE) {
6570 /*
6571 * Note that we return at least the empty string.
6572 * TODO: Do we really always want that?
6573 */
6574 if (prop->children != NULL) {
6575 if ((prop->children->next == NULL) &&
6576 ((prop->children->type == XML_TEXT_NODE) ||
6577 (prop->children->type == XML_CDATA_SECTION_NODE)))
6578 {
6579 /*
6580 * Optimization for the common case: only 1 text node.
6581 */
6582 return(xmlStrdup(prop->children->content));
6583 } else {
6584 xmlChar *ret;
6585
6586 ret = xmlNodeListGetString(prop->doc, prop->children, 1);
6587 if (ret != NULL)
6588 return(ret);
6589 }
6590 }
6591 return(xmlStrdup((xmlChar *)""));
6592 } else if (prop->type == XML_ATTRIBUTE_DECL) {
6593 return(xmlStrdup(((xmlAttributePtr)prop)->defaultValue));
6594 }
6595 return(NULL);
6596 }
6597
6598 /**
6599 * xmlHasProp:
6600 * @node: the node
6601 * @name: the attribute name
6602 *
6603 * Search an attribute associated to a node
6604 * This function also looks in DTD attribute declaration for #FIXED or
6605 * default declaration values unless DTD use has been turned off.
6606 *
6607 * Returns the attribute or the attribute declaration or NULL if
6608 * neither was found.
6609 */
6610 xmlAttrPtr
xmlHasProp(const xmlNode * node,const xmlChar * name)6611 xmlHasProp(const xmlNode *node, const xmlChar *name) {
6612 xmlAttrPtr prop;
6613 xmlDocPtr doc;
6614
6615 if ((node == NULL) || (node->type != XML_ELEMENT_NODE) || (name == NULL))
6616 return(NULL);
6617 /*
6618 * Check on the properties attached to the node
6619 */
6620 prop = node->properties;
6621 while (prop != NULL) {
6622 if (xmlStrEqual(prop->name, name)) {
6623 return(prop);
6624 }
6625 prop = prop->next;
6626 }
6627 if (!xmlCheckDTD) return(NULL);
6628
6629 /*
6630 * Check if there is a default declaration in the internal
6631 * or external subsets
6632 */
6633 doc = node->doc;
6634 if (doc != NULL) {
6635 xmlAttributePtr attrDecl;
6636 if (doc->intSubset != NULL) {
6637 attrDecl = xmlGetDtdAttrDesc(doc->intSubset, node->name, name);
6638 if ((attrDecl == NULL) && (doc->extSubset != NULL))
6639 attrDecl = xmlGetDtdAttrDesc(doc->extSubset, node->name, name);
6640 if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))
6641 /* return attribute declaration only if a default value is given
6642 (that includes #FIXED declarations) */
6643 return((xmlAttrPtr) attrDecl);
6644 }
6645 }
6646 return(NULL);
6647 }
6648
6649 /**
6650 * xmlHasNsProp:
6651 * @node: the node
6652 * @name: the attribute name
6653 * @nameSpace: the URI of the namespace
6654 *
6655 * Search for an attribute associated to a node
6656 * This attribute has to be anchored in the namespace specified.
6657 * This does the entity substitution.
6658 * This function looks in DTD attribute declaration for #FIXED or
6659 * default declaration values unless DTD use has been turned off.
6660 * Note that a namespace of NULL indicates to use the default namespace.
6661 *
6662 * Returns the attribute or the attribute declaration or NULL
6663 * if neither was found.
6664 */
6665 xmlAttrPtr
xmlHasNsProp(const xmlNode * node,const xmlChar * name,const xmlChar * nameSpace)6666 xmlHasNsProp(const xmlNode *node, const xmlChar *name, const xmlChar *nameSpace) {
6667
6668 return(xmlGetPropNodeInternal(node, name, nameSpace, xmlCheckDTD));
6669 }
6670
6671 /**
6672 * xmlGetProp:
6673 * @node: the node
6674 * @name: the attribute name
6675 *
6676 * Search and get the value of an attribute associated to a node
6677 * This does the entity substitution.
6678 * This function looks in DTD attribute declaration for #FIXED or
6679 * default declaration values unless DTD use has been turned off.
6680 * NOTE: this function acts independently of namespaces associated
6681 * to the attribute. Use xmlGetNsProp() or xmlGetNoNsProp()
6682 * for namespace aware processing.
6683 *
6684 * Returns the attribute value or NULL if not found.
6685 * It's up to the caller to free the memory with xmlFree().
6686 */
6687 xmlChar *
xmlGetProp(const xmlNode * node,const xmlChar * name)6688 xmlGetProp(const xmlNode *node, const xmlChar *name) {
6689 xmlAttrPtr prop;
6690
6691 prop = xmlHasProp(node, name);
6692 if (prop == NULL)
6693 return(NULL);
6694 return(xmlGetPropNodeValueInternal(prop));
6695 }
6696
6697 /**
6698 * xmlGetNoNsProp:
6699 * @node: the node
6700 * @name: the attribute name
6701 *
6702 * Search and get the value of an attribute associated to a node
6703 * This does the entity substitution.
6704 * This function looks in DTD attribute declaration for #FIXED or
6705 * default declaration values unless DTD use has been turned off.
6706 * This function is similar to xmlGetProp except it will accept only
6707 * an attribute in no namespace.
6708 *
6709 * Returns the attribute value or NULL if not found.
6710 * It's up to the caller to free the memory with xmlFree().
6711 */
6712 xmlChar *
xmlGetNoNsProp(const xmlNode * node,const xmlChar * name)6713 xmlGetNoNsProp(const xmlNode *node, const xmlChar *name) {
6714 xmlAttrPtr prop;
6715
6716 prop = xmlGetPropNodeInternal(node, name, NULL, xmlCheckDTD);
6717 if (prop == NULL)
6718 return(NULL);
6719 return(xmlGetPropNodeValueInternal(prop));
6720 }
6721
6722 /**
6723 * xmlGetNsProp:
6724 * @node: the node
6725 * @name: the attribute name
6726 * @nameSpace: the URI of the namespace
6727 *
6728 * Search and get the value of an attribute associated to a node
6729 * This attribute has to be anchored in the namespace specified.
6730 * This does the entity substitution.
6731 * This function looks in DTD attribute declaration for #FIXED or
6732 * default declaration values unless DTD use has been turned off.
6733 *
6734 * Returns the attribute value or NULL if not found.
6735 * It's up to the caller to free the memory with xmlFree().
6736 */
6737 xmlChar *
xmlGetNsProp(const xmlNode * node,const xmlChar * name,const xmlChar * nameSpace)6738 xmlGetNsProp(const xmlNode *node, const xmlChar *name, const xmlChar *nameSpace) {
6739 xmlAttrPtr prop;
6740
6741 prop = xmlGetPropNodeInternal(node, name, nameSpace, xmlCheckDTD);
6742 if (prop == NULL)
6743 return(NULL);
6744 return(xmlGetPropNodeValueInternal(prop));
6745 }
6746
6747 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
6748 /**
6749 * xmlUnsetProp:
6750 * @node: the node
6751 * @name: the attribute name
6752 *
6753 * Remove an attribute carried by a node.
6754 * This handles only attributes in no namespace.
6755 * Returns 0 if successful, -1 if not found
6756 */
6757 int
xmlUnsetProp(xmlNodePtr node,const xmlChar * name)6758 xmlUnsetProp(xmlNodePtr node, const xmlChar *name) {
6759 xmlAttrPtr prop;
6760
6761 prop = xmlGetPropNodeInternal(node, name, NULL, 0);
6762 if (prop == NULL)
6763 return(-1);
6764 xmlUnlinkNode((xmlNodePtr) prop);
6765 xmlFreeProp(prop);
6766 return(0);
6767 }
6768
6769 /**
6770 * xmlUnsetNsProp:
6771 * @node: the node
6772 * @ns: the namespace definition
6773 * @name: the attribute name
6774 *
6775 * Remove an attribute carried by a node.
6776 * Returns 0 if successful, -1 if not found
6777 */
6778 int
xmlUnsetNsProp(xmlNodePtr node,xmlNsPtr ns,const xmlChar * name)6779 xmlUnsetNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name) {
6780 xmlAttrPtr prop;
6781
6782 prop = xmlGetPropNodeInternal(node, name, (ns != NULL) ? ns->href : NULL, 0);
6783 if (prop == NULL)
6784 return(-1);
6785 xmlUnlinkNode((xmlNodePtr) prop);
6786 xmlFreeProp(prop);
6787 return(0);
6788 }
6789 #endif
6790
6791 #if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XINCLUDE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED) || defined(LIBXML_HTML_ENABLED)
6792 /**
6793 * xmlSetProp:
6794 * @node: the node
6795 * @name: the attribute name (a QName)
6796 * @value: the attribute value
6797 *
6798 * Set (or reset) an attribute carried by a node.
6799 * If @name has a prefix, then the corresponding
6800 * namespace-binding will be used, if in scope; it is an
6801 * error it there's no such ns-binding for the prefix in
6802 * scope.
6803 * Returns the attribute pointer.
6804 *
6805 */
6806 xmlAttrPtr
xmlSetProp(xmlNodePtr node,const xmlChar * name,const xmlChar * value)6807 xmlSetProp(xmlNodePtr node, const xmlChar *name, const xmlChar *value) {
6808 int len;
6809 const xmlChar *nqname;
6810
6811 if ((node == NULL) || (name == NULL) || (node->type != XML_ELEMENT_NODE))
6812 return(NULL);
6813
6814 /*
6815 * handle QNames
6816 */
6817 nqname = xmlSplitQName3(name, &len);
6818 if (nqname != NULL) {
6819 xmlNsPtr ns;
6820 xmlChar *prefix = xmlStrndup(name, len);
6821 ns = xmlSearchNs(node->doc, node, prefix);
6822 if (prefix != NULL)
6823 xmlFree(prefix);
6824 if (ns != NULL)
6825 return(xmlSetNsProp(node, ns, nqname, value));
6826 }
6827 return(xmlSetNsProp(node, NULL, name, value));
6828 }
6829
6830 /**
6831 * xmlSetNsProp:
6832 * @node: the node
6833 * @ns: the namespace definition
6834 * @name: the attribute name
6835 * @value: the attribute value
6836 *
6837 * Set (or reset) an attribute carried by a node.
6838 * The ns structure must be in scope, this is not checked
6839 *
6840 * Returns the attribute pointer.
6841 */
6842 xmlAttrPtr
xmlSetNsProp(xmlNodePtr node,xmlNsPtr ns,const xmlChar * name,const xmlChar * value)6843 xmlSetNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name,
6844 const xmlChar *value)
6845 {
6846 xmlAttrPtr prop;
6847
6848 if (ns && (ns->href == NULL))
6849 return(NULL);
6850 prop = xmlGetPropNodeInternal(node, name, (ns != NULL) ? ns->href : NULL, 0);
6851 if (prop != NULL) {
6852 /*
6853 * Modify the attribute's value.
6854 */
6855 if (prop->atype == XML_ATTRIBUTE_ID) {
6856 xmlRemoveID(node->doc, prop);
6857 prop->atype = XML_ATTRIBUTE_ID;
6858 }
6859 if (prop->children != NULL)
6860 xmlFreeNodeList(prop->children);
6861 prop->children = NULL;
6862 prop->last = NULL;
6863 prop->ns = ns;
6864 if (value != NULL) {
6865 xmlNodePtr tmp;
6866
6867 if(!xmlCheckUTF8(value)) {
6868 xmlTreeErr(XML_TREE_NOT_UTF8, (xmlNodePtr) node->doc,
6869 NULL);
6870 if (node->doc != NULL)
6871 node->doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");
6872 }
6873 prop->children = xmlNewDocText(node->doc, value);
6874 prop->last = NULL;
6875 tmp = prop->children;
6876 while (tmp != NULL) {
6877 tmp->parent = (xmlNodePtr) prop;
6878 if (tmp->next == NULL)
6879 prop->last = tmp;
6880 tmp = tmp->next;
6881 }
6882 }
6883 if (prop->atype == XML_ATTRIBUTE_ID)
6884 xmlAddID(NULL, node->doc, value, prop);
6885 return(prop);
6886 }
6887 /*
6888 * No equal attr found; create a new one.
6889 */
6890 return(xmlNewPropInternal(node, ns, name, value, 0));
6891 }
6892
6893 #endif /* LIBXML_TREE_ENABLED */
6894
6895 /**
6896 * xmlNodeIsText:
6897 * @node: the node
6898 *
6899 * Is this node a Text node ?
6900 * Returns 1 yes, 0 no
6901 */
6902 int
xmlNodeIsText(const xmlNode * node)6903 xmlNodeIsText(const xmlNode *node) {
6904 if (node == NULL) return(0);
6905
6906 if (node->type == XML_TEXT_NODE) return(1);
6907 return(0);
6908 }
6909
6910 /**
6911 * xmlIsBlankNode:
6912 * @node: the node
6913 *
6914 * Checks whether this node is an empty or whitespace only
6915 * (and possibly ignorable) text-node.
6916 *
6917 * Returns 1 yes, 0 no
6918 */
6919 int
xmlIsBlankNode(const xmlNode * node)6920 xmlIsBlankNode(const xmlNode *node) {
6921 const xmlChar *cur;
6922 if (node == NULL) return(0);
6923
6924 if ((node->type != XML_TEXT_NODE) &&
6925 (node->type != XML_CDATA_SECTION_NODE))
6926 return(0);
6927 if (node->content == NULL) return(1);
6928 cur = node->content;
6929 while (*cur != 0) {
6930 if (!IS_BLANK_CH(*cur)) return(0);
6931 cur++;
6932 }
6933
6934 return(1);
6935 }
6936
6937 /**
6938 * xmlTextConcat:
6939 * @node: the node
6940 * @content: the content
6941 * @len: @content length
6942 *
6943 * Concat the given string at the end of the existing node content
6944 *
6945 * Returns -1 in case of error, 0 otherwise
6946 */
6947
6948 int
xmlTextConcat(xmlNodePtr node,const xmlChar * content,int len)6949 xmlTextConcat(xmlNodePtr node, const xmlChar *content, int len) {
6950 if (node == NULL) return(-1);
6951
6952 if ((node->type != XML_TEXT_NODE) &&
6953 (node->type != XML_CDATA_SECTION_NODE) &&
6954 (node->type != XML_COMMENT_NODE) &&
6955 (node->type != XML_PI_NODE)) {
6956 #ifdef DEBUG_TREE
6957 xmlGenericError(xmlGenericErrorContext,
6958 "xmlTextConcat: node is not text nor CDATA\n");
6959 #endif
6960 return(-1);
6961 }
6962 /* need to check if content is currently in the dictionary */
6963 if ((node->content == (xmlChar *) &(node->properties)) ||
6964 ((node->doc != NULL) && (node->doc->dict != NULL) &&
6965 xmlDictOwns(node->doc->dict, node->content))) {
6966 node->content = xmlStrncatNew(node->content, content, len);
6967 } else {
6968 node->content = xmlStrncat(node->content, content, len);
6969 }
6970 node->properties = NULL;
6971 if (node->content == NULL)
6972 return(-1);
6973 return(0);
6974 }
6975
6976 /************************************************************************
6977 * *
6978 * Output : to a FILE or in memory *
6979 * *
6980 ************************************************************************/
6981
6982 /**
6983 * xmlBufferCreate:
6984 *
6985 * routine to create an XML buffer.
6986 * returns the new structure.
6987 */
6988 xmlBufferPtr
xmlBufferCreate(void)6989 xmlBufferCreate(void) {
6990 xmlBufferPtr ret;
6991
6992 ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
6993 if (ret == NULL) {
6994 xmlTreeErrMemory("creating buffer");
6995 return(NULL);
6996 }
6997 ret->use = 0;
6998 ret->size = xmlDefaultBufferSize;
6999 ret->alloc = xmlBufferAllocScheme;
7000 ret->content = (xmlChar *) xmlMallocAtomic(ret->size * sizeof(xmlChar));
7001 if (ret->content == NULL) {
7002 xmlTreeErrMemory("creating buffer");
7003 xmlFree(ret);
7004 return(NULL);
7005 }
7006 ret->content[0] = 0;
7007 ret->contentIO = NULL;
7008 return(ret);
7009 }
7010
7011 /**
7012 * xmlBufferCreateSize:
7013 * @size: initial size of buffer
7014 *
7015 * routine to create an XML buffer.
7016 * returns the new structure.
7017 */
7018 xmlBufferPtr
xmlBufferCreateSize(size_t size)7019 xmlBufferCreateSize(size_t size) {
7020 xmlBufferPtr ret;
7021
7022 ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
7023 if (ret == NULL) {
7024 xmlTreeErrMemory("creating buffer");
7025 return(NULL);
7026 }
7027 ret->use = 0;
7028 ret->alloc = xmlBufferAllocScheme;
7029 ret->size = (size ? size+2 : 0); /* +1 for ending null */
7030 if (ret->size){
7031 ret->content = (xmlChar *) xmlMallocAtomic(ret->size * sizeof(xmlChar));
7032 if (ret->content == NULL) {
7033 xmlTreeErrMemory("creating buffer");
7034 xmlFree(ret);
7035 return(NULL);
7036 }
7037 ret->content[0] = 0;
7038 } else
7039 ret->content = NULL;
7040 ret->contentIO = NULL;
7041 return(ret);
7042 }
7043
7044 /**
7045 * xmlBufferDetach:
7046 * @buf: the buffer
7047 *
7048 * Remove the string contained in a buffer and gie it back to the
7049 * caller. The buffer is reset to an empty content.
7050 * This doesn't work with immutable buffers as they can't be reset.
7051 *
7052 * Returns the previous string contained by the buffer.
7053 */
7054 xmlChar *
xmlBufferDetach(xmlBufferPtr buf)7055 xmlBufferDetach(xmlBufferPtr buf) {
7056 xmlChar *ret;
7057
7058 if (buf == NULL)
7059 return(NULL);
7060 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)
7061 return(NULL);
7062
7063 ret = buf->content;
7064 buf->content = NULL;
7065 buf->size = 0;
7066 buf->use = 0;
7067
7068 return ret;
7069 }
7070
7071
7072 /**
7073 * xmlBufferCreateStatic:
7074 * @mem: the memory area
7075 * @size: the size in byte
7076 *
7077 * routine to create an XML buffer from an immutable memory area.
7078 * The area won't be modified nor copied, and is expected to be
7079 * present until the end of the buffer lifetime.
7080 *
7081 * returns the new structure.
7082 */
7083 xmlBufferPtr
xmlBufferCreateStatic(void * mem,size_t size)7084 xmlBufferCreateStatic(void *mem, size_t size) {
7085 xmlBufferPtr ret;
7086
7087 if ((mem == NULL) || (size == 0))
7088 return(NULL);
7089
7090 ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
7091 if (ret == NULL) {
7092 xmlTreeErrMemory("creating buffer");
7093 return(NULL);
7094 }
7095 ret->use = size;
7096 ret->size = size;
7097 ret->alloc = XML_BUFFER_ALLOC_IMMUTABLE;
7098 ret->content = (xmlChar *) mem;
7099 return(ret);
7100 }
7101
7102 /**
7103 * xmlBufferSetAllocationScheme:
7104 * @buf: the buffer to tune
7105 * @scheme: allocation scheme to use
7106 *
7107 * Sets the allocation scheme for this buffer
7108 */
7109 void
xmlBufferSetAllocationScheme(xmlBufferPtr buf,xmlBufferAllocationScheme scheme)7110 xmlBufferSetAllocationScheme(xmlBufferPtr buf,
7111 xmlBufferAllocationScheme scheme) {
7112 if (buf == NULL) {
7113 #ifdef DEBUG_BUFFER
7114 xmlGenericError(xmlGenericErrorContext,
7115 "xmlBufferSetAllocationScheme: buf == NULL\n");
7116 #endif
7117 return;
7118 }
7119 if ((buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) ||
7120 (buf->alloc == XML_BUFFER_ALLOC_IO)) return;
7121 if ((scheme == XML_BUFFER_ALLOC_DOUBLEIT) ||
7122 (scheme == XML_BUFFER_ALLOC_EXACT) ||
7123 (scheme == XML_BUFFER_ALLOC_HYBRID) ||
7124 (scheme == XML_BUFFER_ALLOC_IMMUTABLE))
7125 buf->alloc = scheme;
7126 }
7127
7128 /**
7129 * xmlBufferFree:
7130 * @buf: the buffer to free
7131 *
7132 * Frees an XML buffer. It frees both the content and the structure which
7133 * encapsulate it.
7134 */
7135 void
xmlBufferFree(xmlBufferPtr buf)7136 xmlBufferFree(xmlBufferPtr buf) {
7137 if (buf == NULL) {
7138 #ifdef DEBUG_BUFFER
7139 xmlGenericError(xmlGenericErrorContext,
7140 "xmlBufferFree: buf == NULL\n");
7141 #endif
7142 return;
7143 }
7144
7145 if ((buf->alloc == XML_BUFFER_ALLOC_IO) &&
7146 (buf->contentIO != NULL)) {
7147 xmlFree(buf->contentIO);
7148 } else if ((buf->content != NULL) &&
7149 (buf->alloc != XML_BUFFER_ALLOC_IMMUTABLE)) {
7150 xmlFree(buf->content);
7151 }
7152 xmlFree(buf);
7153 }
7154
7155 /**
7156 * xmlBufferEmpty:
7157 * @buf: the buffer
7158 *
7159 * empty a buffer.
7160 */
7161 void
xmlBufferEmpty(xmlBufferPtr buf)7162 xmlBufferEmpty(xmlBufferPtr buf) {
7163 if (buf == NULL) return;
7164 if (buf->content == NULL) return;
7165 buf->use = 0;
7166 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) {
7167 buf->content = BAD_CAST "";
7168 } else if ((buf->alloc == XML_BUFFER_ALLOC_IO) &&
7169 (buf->contentIO != NULL)) {
7170 size_t start_buf = buf->content - buf->contentIO;
7171
7172 buf->size += start_buf;
7173 buf->content = buf->contentIO;
7174 buf->content[0] = 0;
7175 } else {
7176 buf->content[0] = 0;
7177 }
7178 }
7179
7180 /**
7181 * xmlBufferShrink:
7182 * @buf: the buffer to dump
7183 * @len: the number of xmlChar to remove
7184 *
7185 * Remove the beginning of an XML buffer.
7186 *
7187 * Returns the number of #xmlChar removed, or -1 in case of failure.
7188 */
7189 int
xmlBufferShrink(xmlBufferPtr buf,unsigned int len)7190 xmlBufferShrink(xmlBufferPtr buf, unsigned int len) {
7191 if (buf == NULL) return(-1);
7192 if (len == 0) return(0);
7193 if (len > buf->use) return(-1);
7194
7195 buf->use -= len;
7196 if ((buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) ||
7197 ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL))) {
7198 /*
7199 * we just move the content pointer, but also make sure
7200 * the perceived buffer size has shrinked accordingly
7201 */
7202 buf->content += len;
7203 buf->size -= len;
7204
7205 /*
7206 * sometimes though it maybe be better to really shrink
7207 * on IO buffers
7208 */
7209 if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
7210 size_t start_buf = buf->content - buf->contentIO;
7211 if (start_buf >= buf->size) {
7212 memmove(buf->contentIO, &buf->content[0], buf->use);
7213 buf->content = buf->contentIO;
7214 buf->content[buf->use] = 0;
7215 buf->size += start_buf;
7216 }
7217 }
7218 } else {
7219 memmove(buf->content, &buf->content[len], buf->use);
7220 buf->content[buf->use] = 0;
7221 }
7222 return(len);
7223 }
7224
7225 /**
7226 * xmlBufferGrow:
7227 * @buf: the buffer
7228 * @len: the minimum free size to allocate
7229 *
7230 * Grow the available space of an XML buffer.
7231 *
7232 * Returns the new available space or -1 in case of error
7233 */
7234 int
xmlBufferGrow(xmlBufferPtr buf,unsigned int len)7235 xmlBufferGrow(xmlBufferPtr buf, unsigned int len) {
7236 int size;
7237 xmlChar *newbuf;
7238
7239 if (buf == NULL) return(-1);
7240
7241 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
7242 if (len + buf->use < buf->size) return(0);
7243
7244 /*
7245 * Windows has a BIG problem on realloc timing, so we try to double
7246 * the buffer size (if that's enough) (bug 146697)
7247 * Apparently BSD too, and it's probably best for linux too
7248 * On an embedded system this may be something to change
7249 */
7250 #if 1
7251 if (buf->size > len)
7252 size = buf->size * 2;
7253 else
7254 size = buf->use + len + 100;
7255 #else
7256 size = buf->use + len + 100;
7257 #endif
7258
7259 if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
7260 size_t start_buf = buf->content - buf->contentIO;
7261
7262 newbuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + size);
7263 if (newbuf == NULL) {
7264 xmlTreeErrMemory("growing buffer");
7265 return(-1);
7266 }
7267 buf->contentIO = newbuf;
7268 buf->content = newbuf + start_buf;
7269 } else {
7270 newbuf = (xmlChar *) xmlRealloc(buf->content, size);
7271 if (newbuf == NULL) {
7272 xmlTreeErrMemory("growing buffer");
7273 return(-1);
7274 }
7275 buf->content = newbuf;
7276 }
7277 buf->size = size;
7278 return(buf->size - buf->use);
7279 }
7280
7281 /**
7282 * xmlBufferDump:
7283 * @file: the file output
7284 * @buf: the buffer to dump
7285 *
7286 * Dumps an XML buffer to a FILE *.
7287 * Returns the number of #xmlChar written
7288 */
7289 int
xmlBufferDump(FILE * file,xmlBufferPtr buf)7290 xmlBufferDump(FILE *file, xmlBufferPtr buf) {
7291 int ret;
7292
7293 if (buf == NULL) {
7294 #ifdef DEBUG_BUFFER
7295 xmlGenericError(xmlGenericErrorContext,
7296 "xmlBufferDump: buf == NULL\n");
7297 #endif
7298 return(0);
7299 }
7300 if (buf->content == NULL) {
7301 #ifdef DEBUG_BUFFER
7302 xmlGenericError(xmlGenericErrorContext,
7303 "xmlBufferDump: buf->content == NULL\n");
7304 #endif
7305 return(0);
7306 }
7307 if (file == NULL)
7308 file = stdout;
7309 ret = fwrite(buf->content, sizeof(xmlChar), buf->use, file);
7310 return(ret);
7311 }
7312
7313 /**
7314 * xmlBufferContent:
7315 * @buf: the buffer
7316 *
7317 * Function to extract the content of a buffer
7318 *
7319 * Returns the internal content
7320 */
7321
7322 const xmlChar *
xmlBufferContent(const xmlBuffer * buf)7323 xmlBufferContent(const xmlBuffer *buf)
7324 {
7325 if(!buf)
7326 return NULL;
7327
7328 return buf->content;
7329 }
7330
7331 /**
7332 * xmlBufferLength:
7333 * @buf: the buffer
7334 *
7335 * Function to get the length of a buffer
7336 *
7337 * Returns the length of data in the internal content
7338 */
7339
7340 int
xmlBufferLength(const xmlBuffer * buf)7341 xmlBufferLength(const xmlBuffer *buf)
7342 {
7343 if(!buf)
7344 return 0;
7345
7346 return buf->use;
7347 }
7348
7349 /**
7350 * xmlBufferResize:
7351 * @buf: the buffer to resize
7352 * @size: the desired size
7353 *
7354 * Resize a buffer to accommodate minimum size of @size.
7355 *
7356 * Returns 0 in case of problems, 1 otherwise
7357 */
7358 int
xmlBufferResize(xmlBufferPtr buf,unsigned int size)7359 xmlBufferResize(xmlBufferPtr buf, unsigned int size)
7360 {
7361 unsigned int newSize;
7362 xmlChar* rebuf = NULL;
7363 size_t start_buf;
7364
7365 if (buf == NULL)
7366 return(0);
7367
7368 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
7369
7370 /* Don't resize if we don't have to */
7371 if (size < buf->size)
7372 return 1;
7373
7374 /* figure out new size */
7375 switch (buf->alloc){
7376 case XML_BUFFER_ALLOC_IO:
7377 case XML_BUFFER_ALLOC_DOUBLEIT:
7378 /*take care of empty case*/
7379 newSize = (buf->size ? buf->size*2 : size + 10);
7380 while (size > newSize) {
7381 if (newSize > UINT_MAX / 2) {
7382 xmlTreeErrMemory("growing buffer");
7383 return 0;
7384 }
7385 newSize *= 2;
7386 }
7387 break;
7388 case XML_BUFFER_ALLOC_EXACT:
7389 newSize = size+10;
7390 break;
7391 case XML_BUFFER_ALLOC_HYBRID:
7392 if (buf->use < BASE_BUFFER_SIZE)
7393 newSize = size;
7394 else {
7395 newSize = buf->size * 2;
7396 while (size > newSize) {
7397 if (newSize > UINT_MAX / 2) {
7398 xmlTreeErrMemory("growing buffer");
7399 return 0;
7400 }
7401 newSize *= 2;
7402 }
7403 }
7404 break;
7405
7406 default:
7407 newSize = size+10;
7408 break;
7409 }
7410
7411 if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
7412 start_buf = buf->content - buf->contentIO;
7413
7414 if (start_buf > newSize) {
7415 /* move data back to start */
7416 memmove(buf->contentIO, buf->content, buf->use);
7417 buf->content = buf->contentIO;
7418 buf->content[buf->use] = 0;
7419 buf->size += start_buf;
7420 } else {
7421 rebuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + newSize);
7422 if (rebuf == NULL) {
7423 xmlTreeErrMemory("growing buffer");
7424 return 0;
7425 }
7426 buf->contentIO = rebuf;
7427 buf->content = rebuf + start_buf;
7428 }
7429 } else {
7430 if (buf->content == NULL) {
7431 rebuf = (xmlChar *) xmlMallocAtomic(newSize);
7432 } else if (buf->size - buf->use < 100) {
7433 rebuf = (xmlChar *) xmlRealloc(buf->content, newSize);
7434 } else {
7435 /*
7436 * if we are reallocating a buffer far from being full, it's
7437 * better to make a new allocation and copy only the used range
7438 * and free the old one.
7439 */
7440 rebuf = (xmlChar *) xmlMallocAtomic(newSize);
7441 if (rebuf != NULL) {
7442 memcpy(rebuf, buf->content, buf->use);
7443 xmlFree(buf->content);
7444 rebuf[buf->use] = 0;
7445 }
7446 }
7447 if (rebuf == NULL) {
7448 xmlTreeErrMemory("growing buffer");
7449 return 0;
7450 }
7451 buf->content = rebuf;
7452 }
7453 buf->size = newSize;
7454
7455 return 1;
7456 }
7457
7458 /**
7459 * xmlBufferAdd:
7460 * @buf: the buffer to dump
7461 * @str: the #xmlChar string
7462 * @len: the number of #xmlChar to add
7463 *
7464 * Add a string range to an XML buffer. if len == -1, the length of
7465 * str is recomputed.
7466 *
7467 * Returns 0 successful, a positive error code number otherwise
7468 * and -1 in case of internal or API error.
7469 */
7470 int
xmlBufferAdd(xmlBufferPtr buf,const xmlChar * str,int len)7471 xmlBufferAdd(xmlBufferPtr buf, const xmlChar *str, int len) {
7472 unsigned int needSize;
7473
7474 if ((str == NULL) || (buf == NULL)) {
7475 return -1;
7476 }
7477 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
7478 if (len < -1) {
7479 #ifdef DEBUG_BUFFER
7480 xmlGenericError(xmlGenericErrorContext,
7481 "xmlBufferAdd: len < 0\n");
7482 #endif
7483 return -1;
7484 }
7485 if (len == 0) return 0;
7486
7487 if (len < 0)
7488 len = xmlStrlen(str);
7489
7490 if (len < 0) return -1;
7491 if (len == 0) return 0;
7492
7493 needSize = buf->use + len + 2;
7494 if (needSize > buf->size){
7495 if (!xmlBufferResize(buf, needSize)){
7496 xmlTreeErrMemory("growing buffer");
7497 return XML_ERR_NO_MEMORY;
7498 }
7499 }
7500
7501 memmove(&buf->content[buf->use], str, len*sizeof(xmlChar));
7502 buf->use += len;
7503 buf->content[buf->use] = 0;
7504 return 0;
7505 }
7506
7507 /**
7508 * xmlBufferAddHead:
7509 * @buf: the buffer
7510 * @str: the #xmlChar string
7511 * @len: the number of #xmlChar to add
7512 *
7513 * Add a string range to the beginning of an XML buffer.
7514 * if len == -1, the length of @str is recomputed.
7515 *
7516 * Returns 0 successful, a positive error code number otherwise
7517 * and -1 in case of internal or API error.
7518 */
7519 int
xmlBufferAddHead(xmlBufferPtr buf,const xmlChar * str,int len)7520 xmlBufferAddHead(xmlBufferPtr buf, const xmlChar *str, int len) {
7521 unsigned int needSize;
7522
7523 if (buf == NULL)
7524 return(-1);
7525 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
7526 if (str == NULL) {
7527 #ifdef DEBUG_BUFFER
7528 xmlGenericError(xmlGenericErrorContext,
7529 "xmlBufferAddHead: str == NULL\n");
7530 #endif
7531 return -1;
7532 }
7533 if (len < -1) {
7534 #ifdef DEBUG_BUFFER
7535 xmlGenericError(xmlGenericErrorContext,
7536 "xmlBufferAddHead: len < 0\n");
7537 #endif
7538 return -1;
7539 }
7540 if (len == 0) return 0;
7541
7542 if (len < 0)
7543 len = xmlStrlen(str);
7544
7545 if (len <= 0) return -1;
7546
7547 if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
7548 size_t start_buf = buf->content - buf->contentIO;
7549
7550 if (start_buf > (unsigned int) len) {
7551 /*
7552 * We can add it in the space previously shrinked
7553 */
7554 buf->content -= len;
7555 memmove(&buf->content[0], str, len);
7556 buf->use += len;
7557 buf->size += len;
7558 return(0);
7559 }
7560 }
7561 needSize = buf->use + len + 2;
7562 if (needSize > buf->size){
7563 if (!xmlBufferResize(buf, needSize)){
7564 xmlTreeErrMemory("growing buffer");
7565 return XML_ERR_NO_MEMORY;
7566 }
7567 }
7568
7569 memmove(&buf->content[len], &buf->content[0], buf->use);
7570 memmove(&buf->content[0], str, len);
7571 buf->use += len;
7572 buf->content[buf->use] = 0;
7573 return 0;
7574 }
7575
7576 /**
7577 * xmlBufferCat:
7578 * @buf: the buffer to add to
7579 * @str: the #xmlChar string
7580 *
7581 * Append a zero terminated string to an XML buffer.
7582 *
7583 * Returns 0 successful, a positive error code number otherwise
7584 * and -1 in case of internal or API error.
7585 */
7586 int
xmlBufferCat(xmlBufferPtr buf,const xmlChar * str)7587 xmlBufferCat(xmlBufferPtr buf, const xmlChar *str) {
7588 if (buf == NULL)
7589 return(-1);
7590 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
7591 if (str == NULL) return -1;
7592 return xmlBufferAdd(buf, str, -1);
7593 }
7594
7595 /**
7596 * xmlBufferCCat:
7597 * @buf: the buffer to dump
7598 * @str: the C char string
7599 *
7600 * Append a zero terminated C string to an XML buffer.
7601 *
7602 * Returns 0 successful, a positive error code number otherwise
7603 * and -1 in case of internal or API error.
7604 */
7605 int
xmlBufferCCat(xmlBufferPtr buf,const char * str)7606 xmlBufferCCat(xmlBufferPtr buf, const char *str) {
7607 const char *cur;
7608
7609 if (buf == NULL)
7610 return(-1);
7611 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
7612 if (str == NULL) {
7613 #ifdef DEBUG_BUFFER
7614 xmlGenericError(xmlGenericErrorContext,
7615 "xmlBufferCCat: str == NULL\n");
7616 #endif
7617 return -1;
7618 }
7619 for (cur = str;*cur != 0;cur++) {
7620 if (buf->use + 10 >= buf->size) {
7621 if (!xmlBufferResize(buf, buf->use+10)){
7622 xmlTreeErrMemory("growing buffer");
7623 return XML_ERR_NO_MEMORY;
7624 }
7625 }
7626 buf->content[buf->use++] = *cur;
7627 }
7628 buf->content[buf->use] = 0;
7629 return 0;
7630 }
7631
7632 /**
7633 * xmlBufferWriteCHAR:
7634 * @buf: the XML buffer
7635 * @string: the string to add
7636 *
7637 * routine which manages and grows an output buffer. This one adds
7638 * xmlChars at the end of the buffer.
7639 */
7640 void
xmlBufferWriteCHAR(xmlBufferPtr buf,const xmlChar * string)7641 xmlBufferWriteCHAR(xmlBufferPtr buf, const xmlChar *string) {
7642 if (buf == NULL)
7643 return;
7644 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
7645 xmlBufferCat(buf, string);
7646 }
7647
7648 /**
7649 * xmlBufferWriteChar:
7650 * @buf: the XML buffer output
7651 * @string: the string to add
7652 *
7653 * routine which manage and grows an output buffer. This one add
7654 * C chars at the end of the array.
7655 */
7656 void
xmlBufferWriteChar(xmlBufferPtr buf,const char * string)7657 xmlBufferWriteChar(xmlBufferPtr buf, const char *string) {
7658 if (buf == NULL)
7659 return;
7660 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
7661 xmlBufferCCat(buf, string);
7662 }
7663
7664
7665 /**
7666 * xmlBufferWriteQuotedString:
7667 * @buf: the XML buffer output
7668 * @string: the string to add
7669 *
7670 * routine which manage and grows an output buffer. This one writes
7671 * a quoted or double quoted #xmlChar string, checking first if it holds
7672 * quote or double-quotes internally
7673 */
7674 void
xmlBufferWriteQuotedString(xmlBufferPtr buf,const xmlChar * string)7675 xmlBufferWriteQuotedString(xmlBufferPtr buf, const xmlChar *string) {
7676 const xmlChar *cur, *base;
7677 if (buf == NULL)
7678 return;
7679 if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
7680 if (xmlStrchr(string, '\"')) {
7681 if (xmlStrchr(string, '\'')) {
7682 #ifdef DEBUG_BUFFER
7683 xmlGenericError(xmlGenericErrorContext,
7684 "xmlBufferWriteQuotedString: string contains quote and double-quotes !\n");
7685 #endif
7686 xmlBufferCCat(buf, "\"");
7687 base = cur = string;
7688 while(*cur != 0){
7689 if(*cur == '"'){
7690 if (base != cur)
7691 xmlBufferAdd(buf, base, cur - base);
7692 xmlBufferAdd(buf, BAD_CAST """, 6);
7693 cur++;
7694 base = cur;
7695 }
7696 else {
7697 cur++;
7698 }
7699 }
7700 if (base != cur)
7701 xmlBufferAdd(buf, base, cur - base);
7702 xmlBufferCCat(buf, "\"");
7703 }
7704 else{
7705 xmlBufferCCat(buf, "\'");
7706 xmlBufferCat(buf, string);
7707 xmlBufferCCat(buf, "\'");
7708 }
7709 } else {
7710 xmlBufferCCat(buf, "\"");
7711 xmlBufferCat(buf, string);
7712 xmlBufferCCat(buf, "\"");
7713 }
7714 }
7715
7716
7717 /**
7718 * xmlGetDocCompressMode:
7719 * @doc: the document
7720 *
7721 * get the compression ratio for a document, ZLIB based
7722 * Returns 0 (uncompressed) to 9 (max compression)
7723 */
7724 int
xmlGetDocCompressMode(const xmlDoc * doc)7725 xmlGetDocCompressMode (const xmlDoc *doc) {
7726 if (doc == NULL) return(-1);
7727 return(doc->compression);
7728 }
7729
7730 /**
7731 * xmlSetDocCompressMode:
7732 * @doc: the document
7733 * @mode: the compression ratio
7734 *
7735 * set the compression ratio for a document, ZLIB based
7736 * Correct values: 0 (uncompressed) to 9 (max compression)
7737 */
7738 void
xmlSetDocCompressMode(xmlDocPtr doc,int mode)7739 xmlSetDocCompressMode (xmlDocPtr doc, int mode) {
7740 if (doc == NULL) return;
7741 if (mode < 0) doc->compression = 0;
7742 else if (mode > 9) doc->compression = 9;
7743 else doc->compression = mode;
7744 }
7745
7746 /**
7747 * xmlGetCompressMode:
7748 *
7749 * get the default compression mode used, ZLIB based.
7750 * Returns 0 (uncompressed) to 9 (max compression)
7751 */
7752 int
xmlGetCompressMode(void)7753 xmlGetCompressMode(void)
7754 {
7755 return (xmlCompressMode);
7756 }
7757
7758 /**
7759 * xmlSetCompressMode:
7760 * @mode: the compression ratio
7761 *
7762 * set the default compression mode used, ZLIB based
7763 * Correct values: 0 (uncompressed) to 9 (max compression)
7764 */
7765 void
xmlSetCompressMode(int mode)7766 xmlSetCompressMode(int mode) {
7767 if (mode < 0) xmlCompressMode = 0;
7768 else if (mode > 9) xmlCompressMode = 9;
7769 else xmlCompressMode = mode;
7770 }
7771
7772 #define XML_TREE_NSMAP_PARENT -1
7773 #define XML_TREE_NSMAP_XML -2
7774 #define XML_TREE_NSMAP_DOC -3
7775 #define XML_TREE_NSMAP_CUSTOM -4
7776
7777 typedef struct xmlNsMapItem *xmlNsMapItemPtr;
7778 struct xmlNsMapItem {
7779 xmlNsMapItemPtr next;
7780 xmlNsMapItemPtr prev;
7781 xmlNsPtr oldNs; /* old ns decl reference */
7782 xmlNsPtr newNs; /* new ns decl reference */
7783 int shadowDepth; /* Shadowed at this depth */
7784 /*
7785 * depth:
7786 * >= 0 == @node's ns-decls
7787 * -1 == @parent's ns-decls
7788 * -2 == the doc->oldNs XML ns-decl
7789 * -3 == the doc->oldNs storage ns-decls
7790 * -4 == ns-decls provided via custom ns-handling
7791 */
7792 int depth;
7793 };
7794
7795 typedef struct xmlNsMap *xmlNsMapPtr;
7796 struct xmlNsMap {
7797 xmlNsMapItemPtr first;
7798 xmlNsMapItemPtr last;
7799 xmlNsMapItemPtr pool;
7800 };
7801
7802 #define XML_NSMAP_NOTEMPTY(m) (((m) != NULL) && ((m)->first != NULL))
7803 #define XML_NSMAP_FOREACH(m, i) for (i = (m)->first; i != NULL; i = (i)->next)
7804 #define XML_NSMAP_POP(m, i) \
7805 i = (m)->last; \
7806 (m)->last = (i)->prev; \
7807 if ((m)->last == NULL) \
7808 (m)->first = NULL; \
7809 else \
7810 (m)->last->next = NULL; \
7811 (i)->next = (m)->pool; \
7812 (m)->pool = i;
7813
7814 /*
7815 * xmlDOMWrapNsMapFree:
7816 * @map: the ns-map
7817 *
7818 * Frees the ns-map
7819 */
7820 static void
xmlDOMWrapNsMapFree(xmlNsMapPtr nsmap)7821 xmlDOMWrapNsMapFree(xmlNsMapPtr nsmap)
7822 {
7823 xmlNsMapItemPtr cur, tmp;
7824
7825 if (nsmap == NULL)
7826 return;
7827 cur = nsmap->pool;
7828 while (cur != NULL) {
7829 tmp = cur;
7830 cur = cur->next;
7831 xmlFree(tmp);
7832 }
7833 cur = nsmap->first;
7834 while (cur != NULL) {
7835 tmp = cur;
7836 cur = cur->next;
7837 xmlFree(tmp);
7838 }
7839 xmlFree(nsmap);
7840 }
7841
7842 /*
7843 * xmlDOMWrapNsMapAddItem:
7844 * @map: the ns-map
7845 * @oldNs: the old ns-struct
7846 * @newNs: the new ns-struct
7847 * @depth: depth and ns-kind information
7848 *
7849 * Adds an ns-mapping item.
7850 */
7851 static xmlNsMapItemPtr
xmlDOMWrapNsMapAddItem(xmlNsMapPtr * nsmap,int position,xmlNsPtr oldNs,xmlNsPtr newNs,int depth)7852 xmlDOMWrapNsMapAddItem(xmlNsMapPtr *nsmap, int position,
7853 xmlNsPtr oldNs, xmlNsPtr newNs, int depth)
7854 {
7855 xmlNsMapItemPtr ret;
7856 xmlNsMapPtr map;
7857
7858 if (nsmap == NULL)
7859 return(NULL);
7860 if ((position != -1) && (position != 0))
7861 return(NULL);
7862 map = *nsmap;
7863
7864 if (map == NULL) {
7865 /*
7866 * Create the ns-map.
7867 */
7868 map = (xmlNsMapPtr) xmlMalloc(sizeof(struct xmlNsMap));
7869 if (map == NULL) {
7870 xmlTreeErrMemory("allocating namespace map");
7871 return (NULL);
7872 }
7873 memset(map, 0, sizeof(struct xmlNsMap));
7874 *nsmap = map;
7875 }
7876
7877 if (map->pool != NULL) {
7878 /*
7879 * Reuse an item from the pool.
7880 */
7881 ret = map->pool;
7882 map->pool = ret->next;
7883 memset(ret, 0, sizeof(struct xmlNsMapItem));
7884 } else {
7885 /*
7886 * Create a new item.
7887 */
7888 ret = (xmlNsMapItemPtr) xmlMalloc(sizeof(struct xmlNsMapItem));
7889 if (ret == NULL) {
7890 xmlTreeErrMemory("allocating namespace map item");
7891 return (NULL);
7892 }
7893 memset(ret, 0, sizeof(struct xmlNsMapItem));
7894 }
7895
7896 if (map->first == NULL) {
7897 /*
7898 * First ever.
7899 */
7900 map->first = ret;
7901 map->last = ret;
7902 } else if (position == -1) {
7903 /*
7904 * Append.
7905 */
7906 ret->prev = map->last;
7907 map->last->next = ret;
7908 map->last = ret;
7909 } else if (position == 0) {
7910 /*
7911 * Set on first position.
7912 */
7913 map->first->prev = ret;
7914 ret->next = map->first;
7915 map->first = ret;
7916 }
7917
7918 ret->oldNs = oldNs;
7919 ret->newNs = newNs;
7920 ret->shadowDepth = -1;
7921 ret->depth = depth;
7922 return (ret);
7923 }
7924
7925 /*
7926 * xmlDOMWrapStoreNs:
7927 * @doc: the doc
7928 * @nsName: the namespace name
7929 * @prefix: the prefix
7930 *
7931 * Creates or reuses an xmlNs struct on doc->oldNs with
7932 * the given prefix and namespace name.
7933 *
7934 * Returns the aquired ns struct or NULL in case of an API
7935 * or internal error.
7936 */
7937 static xmlNsPtr
xmlDOMWrapStoreNs(xmlDocPtr doc,const xmlChar * nsName,const xmlChar * prefix)7938 xmlDOMWrapStoreNs(xmlDocPtr doc,
7939 const xmlChar *nsName,
7940 const xmlChar *prefix)
7941 {
7942 xmlNsPtr ns;
7943
7944 if (doc == NULL)
7945 return (NULL);
7946 ns = xmlTreeEnsureXMLDecl(doc);
7947 if (ns == NULL)
7948 return (NULL);
7949 if (ns->next != NULL) {
7950 /* Reuse. */
7951 ns = ns->next;
7952 while (ns != NULL) {
7953 if (((ns->prefix == prefix) ||
7954 xmlStrEqual(ns->prefix, prefix)) &&
7955 xmlStrEqual(ns->href, nsName)) {
7956 return (ns);
7957 }
7958 if (ns->next == NULL)
7959 break;
7960 ns = ns->next;
7961 }
7962 }
7963 /* Create. */
7964 if (ns != NULL) {
7965 ns->next = xmlNewNs(NULL, nsName, prefix);
7966 return (ns->next);
7967 }
7968 return(NULL);
7969 }
7970
7971 /*
7972 * xmlDOMWrapNewCtxt:
7973 *
7974 * Allocates and initializes a new DOM-wrapper context.
7975 *
7976 * Returns the xmlDOMWrapCtxtPtr or NULL in case of an internal error.
7977 */
7978 xmlDOMWrapCtxtPtr
xmlDOMWrapNewCtxt(void)7979 xmlDOMWrapNewCtxt(void)
7980 {
7981 xmlDOMWrapCtxtPtr ret;
7982
7983 ret = xmlMalloc(sizeof(xmlDOMWrapCtxt));
7984 if (ret == NULL) {
7985 xmlTreeErrMemory("allocating DOM-wrapper context");
7986 return (NULL);
7987 }
7988 memset(ret, 0, sizeof(xmlDOMWrapCtxt));
7989 return (ret);
7990 }
7991
7992 /*
7993 * xmlDOMWrapFreeCtxt:
7994 * @ctxt: the DOM-wrapper context
7995 *
7996 * Frees the DOM-wrapper context.
7997 */
7998 void
xmlDOMWrapFreeCtxt(xmlDOMWrapCtxtPtr ctxt)7999 xmlDOMWrapFreeCtxt(xmlDOMWrapCtxtPtr ctxt)
8000 {
8001 if (ctxt == NULL)
8002 return;
8003 if (ctxt->namespaceMap != NULL)
8004 xmlDOMWrapNsMapFree((xmlNsMapPtr) ctxt->namespaceMap);
8005 /*
8006 * TODO: Store the namespace map in the context.
8007 */
8008 xmlFree(ctxt);
8009 }
8010
8011 /*
8012 * xmlTreeLookupNsListByPrefix:
8013 * @nsList: a list of ns-structs
8014 * @prefix: the searched prefix
8015 *
8016 * Searches for a ns-decl with the given prefix in @nsList.
8017 *
8018 * Returns the ns-decl if found, NULL if not found and on
8019 * API errors.
8020 */
8021 static xmlNsPtr
xmlTreeNSListLookupByPrefix(xmlNsPtr nsList,const xmlChar * prefix)8022 xmlTreeNSListLookupByPrefix(xmlNsPtr nsList, const xmlChar *prefix)
8023 {
8024 if (nsList == NULL)
8025 return (NULL);
8026 {
8027 xmlNsPtr ns;
8028 ns = nsList;
8029 do {
8030 if ((prefix == ns->prefix) ||
8031 xmlStrEqual(prefix, ns->prefix)) {
8032 return (ns);
8033 }
8034 ns = ns->next;
8035 } while (ns != NULL);
8036 }
8037 return (NULL);
8038 }
8039
8040 /*
8041 *
8042 * xmlDOMWrapNSNormGatherInScopeNs:
8043 * @map: the namespace map
8044 * @node: the node to start with
8045 *
8046 * Puts in-scope namespaces into the ns-map.
8047 *
8048 * Returns 0 on success, -1 on API or internal errors.
8049 */
8050 static int
xmlDOMWrapNSNormGatherInScopeNs(xmlNsMapPtr * map,xmlNodePtr node)8051 xmlDOMWrapNSNormGatherInScopeNs(xmlNsMapPtr *map,
8052 xmlNodePtr node)
8053 {
8054 xmlNodePtr cur;
8055 xmlNsPtr ns;
8056 xmlNsMapItemPtr mi;
8057 int shadowed;
8058
8059 if ((map == NULL) || (*map != NULL))
8060 return (-1);
8061 if ((node == NULL) || (node->type == XML_NAMESPACE_DECL))
8062 return (-1);
8063 /*
8064 * Get in-scope ns-decls of @parent.
8065 */
8066 cur = node;
8067 while ((cur != NULL) && (cur != (xmlNodePtr) cur->doc)) {
8068 if (cur->type == XML_ELEMENT_NODE) {
8069 if (cur->nsDef != NULL) {
8070 ns = cur->nsDef;
8071 do {
8072 shadowed = 0;
8073 if (XML_NSMAP_NOTEMPTY(*map)) {
8074 /*
8075 * Skip shadowed prefixes.
8076 */
8077 XML_NSMAP_FOREACH(*map, mi) {
8078 if ((ns->prefix == mi->newNs->prefix) ||
8079 xmlStrEqual(ns->prefix, mi->newNs->prefix)) {
8080 shadowed = 1;
8081 break;
8082 }
8083 }
8084 }
8085 /*
8086 * Insert mapping.
8087 */
8088 mi = xmlDOMWrapNsMapAddItem(map, 0, NULL,
8089 ns, XML_TREE_NSMAP_PARENT);
8090 if (mi == NULL)
8091 return (-1);
8092 if (shadowed)
8093 mi->shadowDepth = 0;
8094 ns = ns->next;
8095 } while (ns != NULL);
8096 }
8097 }
8098 cur = cur->parent;
8099 }
8100 return (0);
8101 }
8102
8103 /*
8104 * XML_TREE_ADOPT_STR: If we have a dest-dict, put @str in the dict;
8105 * otherwise copy it, when it was in the source-dict.
8106 */
8107 #define XML_TREE_ADOPT_STR(str) \
8108 if (adoptStr && (str != NULL)) { \
8109 if (destDoc->dict) { \
8110 const xmlChar *old = str; \
8111 str = xmlDictLookup(destDoc->dict, str, -1); \
8112 if ((sourceDoc == NULL) || (sourceDoc->dict == NULL) || \
8113 (!xmlDictOwns(sourceDoc->dict, old))) \
8114 xmlFree((char *)old); \
8115 } else if ((sourceDoc) && (sourceDoc->dict) && \
8116 xmlDictOwns(sourceDoc->dict, str)) { \
8117 str = BAD_CAST xmlStrdup(str); \
8118 } \
8119 }
8120
8121 /*
8122 * XML_TREE_ADOPT_STR_2: If @str was in the source-dict, then
8123 * put it in dest-dict or copy it.
8124 */
8125 #define XML_TREE_ADOPT_STR_2(str) \
8126 if (adoptStr && (str != NULL) && (sourceDoc != NULL) && \
8127 (sourceDoc->dict != NULL) && \
8128 xmlDictOwns(sourceDoc->dict, cur->content)) { \
8129 if (destDoc->dict) \
8130 cur->content = (xmlChar *) \
8131 xmlDictLookup(destDoc->dict, cur->content, -1); \
8132 else \
8133 cur->content = xmlStrdup(BAD_CAST cur->content); \
8134 }
8135
8136 /*
8137 * xmlDOMWrapNSNormAddNsMapItem2:
8138 *
8139 * For internal use. Adds a ns-decl mapping.
8140 *
8141 * Returns 0 on success, -1 on internal errors.
8142 */
8143 static int
xmlDOMWrapNSNormAddNsMapItem2(xmlNsPtr ** list,int * size,int * number,xmlNsPtr oldNs,xmlNsPtr newNs)8144 xmlDOMWrapNSNormAddNsMapItem2(xmlNsPtr **list, int *size, int *number,
8145 xmlNsPtr oldNs, xmlNsPtr newNs)
8146 {
8147 if (*list == NULL) {
8148 *list = (xmlNsPtr *) xmlMalloc(6 * sizeof(xmlNsPtr));
8149 if (*list == NULL) {
8150 xmlTreeErrMemory("alloc ns map item");
8151 return(-1);
8152 }
8153 *size = 3;
8154 *number = 0;
8155 } else if ((*number) >= (*size)) {
8156 *size *= 2;
8157 *list = (xmlNsPtr *) xmlRealloc(*list,
8158 (*size) * 2 * sizeof(xmlNsPtr));
8159 if (*list == NULL) {
8160 xmlTreeErrMemory("realloc ns map item");
8161 return(-1);
8162 }
8163 }
8164 (*list)[2 * (*number)] = oldNs;
8165 (*list)[2 * (*number) +1] = newNs;
8166 (*number)++;
8167 return (0);
8168 }
8169
8170 /*
8171 * xmlDOMWrapRemoveNode:
8172 * @ctxt: a DOM wrapper context
8173 * @doc: the doc
8174 * @node: the node to be removed.
8175 * @options: set of options, unused at the moment
8176 *
8177 * Unlinks the given node from its owner.
8178 * This will substitute ns-references to node->nsDef for
8179 * ns-references to doc->oldNs, thus ensuring the removed
8180 * branch to be autark wrt ns-references.
8181 *
8182 * NOTE: This function was not intensively tested.
8183 *
8184 * Returns 0 on success, 1 if the node is not supported,
8185 * -1 on API and internal errors.
8186 */
8187 int
xmlDOMWrapRemoveNode(xmlDOMWrapCtxtPtr ctxt,xmlDocPtr doc,xmlNodePtr node,int options ATTRIBUTE_UNUSED)8188 xmlDOMWrapRemoveNode(xmlDOMWrapCtxtPtr ctxt, xmlDocPtr doc,
8189 xmlNodePtr node, int options ATTRIBUTE_UNUSED)
8190 {
8191 xmlNsPtr *list = NULL;
8192 int sizeList, nbList, i, j;
8193 xmlNsPtr ns;
8194
8195 if ((node == NULL) || (doc == NULL) || (node->doc != doc))
8196 return (-1);
8197
8198 /* TODO: 0 or -1 ? */
8199 if (node->parent == NULL)
8200 return (0);
8201
8202 switch (node->type) {
8203 case XML_TEXT_NODE:
8204 case XML_CDATA_SECTION_NODE:
8205 case XML_ENTITY_REF_NODE:
8206 case XML_PI_NODE:
8207 case XML_COMMENT_NODE:
8208 xmlUnlinkNode(node);
8209 return (0);
8210 case XML_ELEMENT_NODE:
8211 case XML_ATTRIBUTE_NODE:
8212 break;
8213 default:
8214 return (1);
8215 }
8216 xmlUnlinkNode(node);
8217 /*
8218 * Save out-of-scope ns-references in doc->oldNs.
8219 */
8220 do {
8221 switch (node->type) {
8222 case XML_ELEMENT_NODE:
8223 if ((ctxt == NULL) && (node->nsDef != NULL)) {
8224 ns = node->nsDef;
8225 do {
8226 if (xmlDOMWrapNSNormAddNsMapItem2(&list, &sizeList,
8227 &nbList, ns, ns) == -1)
8228 goto internal_error;
8229 ns = ns->next;
8230 } while (ns != NULL);
8231 }
8232 /* No break on purpose. */
8233 case XML_ATTRIBUTE_NODE:
8234 if (node->ns != NULL) {
8235 /*
8236 * Find a mapping.
8237 */
8238 if (list != NULL) {
8239 for (i = 0, j = 0; i < nbList; i++, j += 2) {
8240 if (node->ns == list[j]) {
8241 node->ns = list[++j];
8242 goto next_node;
8243 }
8244 }
8245 }
8246 ns = NULL;
8247 if (ctxt != NULL) {
8248 /*
8249 * User defined.
8250 */
8251 } else {
8252 /*
8253 * Add to doc's oldNs.
8254 */
8255 ns = xmlDOMWrapStoreNs(doc, node->ns->href,
8256 node->ns->prefix);
8257 if (ns == NULL)
8258 goto internal_error;
8259 }
8260 if (ns != NULL) {
8261 /*
8262 * Add mapping.
8263 */
8264 if (xmlDOMWrapNSNormAddNsMapItem2(&list, &sizeList,
8265 &nbList, node->ns, ns) == -1)
8266 goto internal_error;
8267 }
8268 node->ns = ns;
8269 }
8270 if ((node->type == XML_ELEMENT_NODE) &&
8271 (node->properties != NULL)) {
8272 node = (xmlNodePtr) node->properties;
8273 continue;
8274 }
8275 break;
8276 default:
8277 goto next_sibling;
8278 }
8279 next_node:
8280 if ((node->type == XML_ELEMENT_NODE) &&
8281 (node->children != NULL)) {
8282 node = node->children;
8283 continue;
8284 }
8285 next_sibling:
8286 if (node == NULL)
8287 break;
8288 if (node->next != NULL)
8289 node = node->next;
8290 else {
8291 node = node->parent;
8292 goto next_sibling;
8293 }
8294 } while (node != NULL);
8295
8296 if (list != NULL)
8297 xmlFree(list);
8298 return (0);
8299
8300 internal_error:
8301 if (list != NULL)
8302 xmlFree(list);
8303 return (-1);
8304 }
8305
8306 /*
8307 * xmlSearchNsByNamespaceStrict:
8308 * @doc: the document
8309 * @node: the start node
8310 * @nsName: the searched namespace name
8311 * @retNs: the resulting ns-decl
8312 * @prefixed: if the found ns-decl must have a prefix (for attributes)
8313 *
8314 * Dynamically searches for a ns-declaration which matches
8315 * the given @nsName in the ancestor-or-self axis of @node.
8316 *
8317 * Returns 1 if a ns-decl was found, 0 if not and -1 on API
8318 * and internal errors.
8319 */
8320 static int
xmlSearchNsByNamespaceStrict(xmlDocPtr doc,xmlNodePtr node,const xmlChar * nsName,xmlNsPtr * retNs,int prefixed)8321 xmlSearchNsByNamespaceStrict(xmlDocPtr doc, xmlNodePtr node,
8322 const xmlChar* nsName,
8323 xmlNsPtr *retNs, int prefixed)
8324 {
8325 xmlNodePtr cur, prev = NULL, out = NULL;
8326 xmlNsPtr ns, prevns;
8327
8328 if ((doc == NULL) || (nsName == NULL) || (retNs == NULL))
8329 return (-1);
8330 if ((node == NULL) || (node->type == XML_NAMESPACE_DECL))
8331 return(-1);
8332
8333 *retNs = NULL;
8334 if (xmlStrEqual(nsName, XML_XML_NAMESPACE)) {
8335 *retNs = xmlTreeEnsureXMLDecl(doc);
8336 if (*retNs == NULL)
8337 return (-1);
8338 return (1);
8339 }
8340 cur = node;
8341 do {
8342 if (cur->type == XML_ELEMENT_NODE) {
8343 if (cur->nsDef != NULL) {
8344 for (ns = cur->nsDef; ns != NULL; ns = ns->next) {
8345 if (prefixed && (ns->prefix == NULL))
8346 continue;
8347 if (prev != NULL) {
8348 /*
8349 * Check the last level of ns-decls for a
8350 * shadowing prefix.
8351 */
8352 prevns = prev->nsDef;
8353 do {
8354 if ((prevns->prefix == ns->prefix) ||
8355 ((prevns->prefix != NULL) &&
8356 (ns->prefix != NULL) &&
8357 xmlStrEqual(prevns->prefix, ns->prefix))) {
8358 /*
8359 * Shadowed.
8360 */
8361 break;
8362 }
8363 prevns = prevns->next;
8364 } while (prevns != NULL);
8365 if (prevns != NULL)
8366 continue;
8367 }
8368 /*
8369 * Ns-name comparison.
8370 */
8371 if ((nsName == ns->href) ||
8372 xmlStrEqual(nsName, ns->href)) {
8373 /*
8374 * At this point the prefix can only be shadowed,
8375 * if we are the the (at least) 3rd level of
8376 * ns-decls.
8377 */
8378 if (out) {
8379 int ret;
8380
8381 ret = xmlNsInScope(doc, node, prev, ns->prefix);
8382 if (ret < 0)
8383 return (-1);
8384 /*
8385 * TODO: Should we try to find a matching ns-name
8386 * only once? This here keeps on searching.
8387 * I think we should try further since, there might
8388 * be an other matching ns-decl with an unshadowed
8389 * prefix.
8390 */
8391 if (! ret)
8392 continue;
8393 }
8394 *retNs = ns;
8395 return (1);
8396 }
8397 }
8398 out = prev;
8399 prev = cur;
8400 }
8401 } else if ((cur->type == XML_ENTITY_NODE) ||
8402 (cur->type == XML_ENTITY_DECL))
8403 return (0);
8404 cur = cur->parent;
8405 } while ((cur != NULL) && (cur->doc != (xmlDocPtr) cur));
8406 return (0);
8407 }
8408
8409 /*
8410 * xmlSearchNsByPrefixStrict:
8411 * @doc: the document
8412 * @node: the start node
8413 * @prefix: the searched namespace prefix
8414 * @retNs: the resulting ns-decl
8415 *
8416 * Dynamically searches for a ns-declaration which matches
8417 * the given @nsName in the ancestor-or-self axis of @node.
8418 *
8419 * Returns 1 if a ns-decl was found, 0 if not and -1 on API
8420 * and internal errors.
8421 */
8422 static int
xmlSearchNsByPrefixStrict(xmlDocPtr doc,xmlNodePtr node,const xmlChar * prefix,xmlNsPtr * retNs)8423 xmlSearchNsByPrefixStrict(xmlDocPtr doc, xmlNodePtr node,
8424 const xmlChar* prefix,
8425 xmlNsPtr *retNs)
8426 {
8427 xmlNodePtr cur;
8428 xmlNsPtr ns;
8429
8430 if ((doc == NULL) || (node == NULL) || (node->type == XML_NAMESPACE_DECL))
8431 return(-1);
8432
8433 if (retNs)
8434 *retNs = NULL;
8435 if (IS_STR_XML(prefix)) {
8436 if (retNs) {
8437 *retNs = xmlTreeEnsureXMLDecl(doc);
8438 if (*retNs == NULL)
8439 return (-1);
8440 }
8441 return (1);
8442 }
8443 cur = node;
8444 do {
8445 if (cur->type == XML_ELEMENT_NODE) {
8446 if (cur->nsDef != NULL) {
8447 ns = cur->nsDef;
8448 do {
8449 if ((prefix == ns->prefix) ||
8450 xmlStrEqual(prefix, ns->prefix))
8451 {
8452 /*
8453 * Disabled namespaces, e.g. xmlns:abc="".
8454 */
8455 if (ns->href == NULL)
8456 return(0);
8457 if (retNs)
8458 *retNs = ns;
8459 return (1);
8460 }
8461 ns = ns->next;
8462 } while (ns != NULL);
8463 }
8464 } else if ((cur->type == XML_ENTITY_NODE) ||
8465 (cur->type == XML_ENTITY_DECL))
8466 return (0);
8467 cur = cur->parent;
8468 } while ((cur != NULL) && (cur->doc != (xmlDocPtr) cur));
8469 return (0);
8470 }
8471
8472 /*
8473 * xmlDOMWrapNSNormDeclareNsForced:
8474 * @doc: the doc
8475 * @elem: the element-node to declare on
8476 * @nsName: the namespace-name of the ns-decl
8477 * @prefix: the preferred prefix of the ns-decl
8478 * @checkShadow: ensure that the new ns-decl doesn't shadow ancestor ns-decls
8479 *
8480 * Declares a new namespace on @elem. It tries to use the
8481 * given @prefix; if a ns-decl with the given prefix is already existent
8482 * on @elem, it will generate an other prefix.
8483 *
8484 * Returns 1 if a ns-decl was found, 0 if not and -1 on API
8485 * and internal errors.
8486 */
8487 static xmlNsPtr
xmlDOMWrapNSNormDeclareNsForced(xmlDocPtr doc,xmlNodePtr elem,const xmlChar * nsName,const xmlChar * prefix,int checkShadow)8488 xmlDOMWrapNSNormDeclareNsForced(xmlDocPtr doc,
8489 xmlNodePtr elem,
8490 const xmlChar *nsName,
8491 const xmlChar *prefix,
8492 int checkShadow)
8493 {
8494
8495 xmlNsPtr ret;
8496 char buf[50];
8497 const xmlChar *pref;
8498 int counter = 0;
8499
8500 if ((doc == NULL) || (elem == NULL) || (elem->type != XML_ELEMENT_NODE))
8501 return(NULL);
8502 /*
8503 * Create a ns-decl on @anchor.
8504 */
8505 pref = prefix;
8506 while (1) {
8507 /*
8508 * Lookup whether the prefix is unused in elem's ns-decls.
8509 */
8510 if ((elem->nsDef != NULL) &&
8511 (xmlTreeNSListLookupByPrefix(elem->nsDef, pref) != NULL))
8512 goto ns_next_prefix;
8513 if (checkShadow && elem->parent &&
8514 ((xmlNodePtr) elem->parent->doc != elem->parent)) {
8515 /*
8516 * Does it shadow ancestor ns-decls?
8517 */
8518 if (xmlSearchNsByPrefixStrict(doc, elem->parent, pref, NULL) == 1)
8519 goto ns_next_prefix;
8520 }
8521 ret = xmlNewNs(NULL, nsName, pref);
8522 if (ret == NULL)
8523 return (NULL);
8524 if (elem->nsDef == NULL)
8525 elem->nsDef = ret;
8526 else {
8527 xmlNsPtr ns2 = elem->nsDef;
8528 while (ns2->next != NULL)
8529 ns2 = ns2->next;
8530 ns2->next = ret;
8531 }
8532 return (ret);
8533 ns_next_prefix:
8534 counter++;
8535 if (counter > 1000)
8536 return (NULL);
8537 if (prefix == NULL) {
8538 snprintf((char *) buf, sizeof(buf),
8539 "ns_%d", counter);
8540 } else
8541 snprintf((char *) buf, sizeof(buf),
8542 "%.30s_%d", (char *)prefix, counter);
8543 pref = BAD_CAST buf;
8544 }
8545 }
8546
8547 /*
8548 * xmlDOMWrapNSNormAquireNormalizedNs:
8549 * @doc: the doc
8550 * @elem: the element-node to declare namespaces on
8551 * @ns: the ns-struct to use for the search
8552 * @retNs: the found/created ns-struct
8553 * @nsMap: the ns-map
8554 * @depth: the current tree depth
8555 * @ancestorsOnly: search in ancestor ns-decls only
8556 * @prefixed: if the searched ns-decl must have a prefix (for attributes)
8557 *
8558 * Searches for a matching ns-name in the ns-decls of @nsMap, if not
8559 * found it will either declare it on @elem, or store it in doc->oldNs.
8560 * If a new ns-decl needs to be declared on @elem, it tries to use the
8561 * @ns->prefix for it, if this prefix is already in use on @elem, it will
8562 * change the prefix or the new ns-decl.
8563 *
8564 * Returns 0 if succeeded, -1 otherwise and on API/internal errors.
8565 */
8566 static int
xmlDOMWrapNSNormAquireNormalizedNs(xmlDocPtr doc,xmlNodePtr elem,xmlNsPtr ns,xmlNsPtr * retNs,xmlNsMapPtr * nsMap,int depth,int ancestorsOnly,int prefixed)8567 xmlDOMWrapNSNormAquireNormalizedNs(xmlDocPtr doc,
8568 xmlNodePtr elem,
8569 xmlNsPtr ns,
8570 xmlNsPtr *retNs,
8571 xmlNsMapPtr *nsMap,
8572
8573 int depth,
8574 int ancestorsOnly,
8575 int prefixed)
8576 {
8577 xmlNsMapItemPtr mi;
8578
8579 if ((doc == NULL) || (ns == NULL) || (retNs == NULL) ||
8580 (nsMap == NULL))
8581 return (-1);
8582
8583 *retNs = NULL;
8584 /*
8585 * Handle XML namespace.
8586 */
8587 if (IS_STR_XML(ns->prefix)) {
8588 /*
8589 * Insert XML namespace mapping.
8590 */
8591 *retNs = xmlTreeEnsureXMLDecl(doc);
8592 if (*retNs == NULL)
8593 return (-1);
8594 return (0);
8595 }
8596 /*
8597 * If the search should be done in ancestors only and no
8598 * @elem (the first ancestor) was specified, then skip the search.
8599 */
8600 if ((XML_NSMAP_NOTEMPTY(*nsMap)) &&
8601 (! (ancestorsOnly && (elem == NULL))))
8602 {
8603 /*
8604 * Try to find an equal ns-name in in-scope ns-decls.
8605 */
8606 XML_NSMAP_FOREACH(*nsMap, mi) {
8607 if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
8608 /*
8609 * ancestorsOnly: This should be turned on to gain speed,
8610 * if one knows that the branch itself was already
8611 * ns-wellformed and no stale references existed.
8612 * I.e. it searches in the ancestor axis only.
8613 */
8614 ((! ancestorsOnly) || (mi->depth == XML_TREE_NSMAP_PARENT)) &&
8615 /* Skip shadowed prefixes. */
8616 (mi->shadowDepth == -1) &&
8617 /* Skip xmlns="" or xmlns:foo="". */
8618 ((mi->newNs->href != NULL) &&
8619 (mi->newNs->href[0] != 0)) &&
8620 /* Ensure a prefix if wanted. */
8621 ((! prefixed) || (mi->newNs->prefix != NULL)) &&
8622 /* Equal ns name */
8623 ((mi->newNs->href == ns->href) ||
8624 xmlStrEqual(mi->newNs->href, ns->href))) {
8625 /* Set the mapping. */
8626 mi->oldNs = ns;
8627 *retNs = mi->newNs;
8628 return (0);
8629 }
8630 }
8631 }
8632 /*
8633 * No luck, the namespace is out of scope or shadowed.
8634 */
8635 if (elem == NULL) {
8636 xmlNsPtr tmpns;
8637
8638 /*
8639 * Store ns-decls in "oldNs" of the document-node.
8640 */
8641 tmpns = xmlDOMWrapStoreNs(doc, ns->href, ns->prefix);
8642 if (tmpns == NULL)
8643 return (-1);
8644 /*
8645 * Insert mapping.
8646 */
8647 if (xmlDOMWrapNsMapAddItem(nsMap, -1, ns,
8648 tmpns, XML_TREE_NSMAP_DOC) == NULL) {
8649 xmlFreeNs(tmpns);
8650 return (-1);
8651 }
8652 *retNs = tmpns;
8653 } else {
8654 xmlNsPtr tmpns;
8655
8656 tmpns = xmlDOMWrapNSNormDeclareNsForced(doc, elem, ns->href,
8657 ns->prefix, 0);
8658 if (tmpns == NULL)
8659 return (-1);
8660
8661 if (*nsMap != NULL) {
8662 /*
8663 * Does it shadow ancestor ns-decls?
8664 */
8665 XML_NSMAP_FOREACH(*nsMap, mi) {
8666 if ((mi->depth < depth) &&
8667 (mi->shadowDepth == -1) &&
8668 ((ns->prefix == mi->newNs->prefix) ||
8669 xmlStrEqual(ns->prefix, mi->newNs->prefix))) {
8670 /*
8671 * Shadows.
8672 */
8673 mi->shadowDepth = depth;
8674 break;
8675 }
8676 }
8677 }
8678 if (xmlDOMWrapNsMapAddItem(nsMap, -1, ns, tmpns, depth) == NULL) {
8679 xmlFreeNs(tmpns);
8680 return (-1);
8681 }
8682 *retNs = tmpns;
8683 }
8684 return (0);
8685 }
8686
8687 typedef enum {
8688 XML_DOM_RECONNS_REMOVEREDUND = 1<<0
8689 } xmlDOMReconcileNSOptions;
8690
8691 /*
8692 * xmlDOMWrapReconcileNamespaces:
8693 * @ctxt: DOM wrapper context, unused at the moment
8694 * @elem: the element-node
8695 * @options: option flags
8696 *
8697 * Ensures that ns-references point to ns-decls hold on element-nodes.
8698 * Ensures that the tree is namespace wellformed by creating additional
8699 * ns-decls where needed. Note that, since prefixes of already existent
8700 * ns-decls can be shadowed by this process, it could break QNames in
8701 * attribute values or element content.
8702 *
8703 * NOTE: This function was not intensively tested.
8704 *
8705 * Returns 0 if succeeded, -1 otherwise and on API/internal errors.
8706 */
8707
8708 int
xmlDOMWrapReconcileNamespaces(xmlDOMWrapCtxtPtr ctxt ATTRIBUTE_UNUSED,xmlNodePtr elem,int options)8709 xmlDOMWrapReconcileNamespaces(xmlDOMWrapCtxtPtr ctxt ATTRIBUTE_UNUSED,
8710 xmlNodePtr elem,
8711 int options)
8712 {
8713 int depth = -1, adoptns = 0, parnsdone = 0;
8714 xmlNsPtr ns, prevns;
8715 xmlDocPtr doc;
8716 xmlNodePtr cur, curElem = NULL;
8717 xmlNsMapPtr nsMap = NULL;
8718 xmlNsMapItemPtr /* topmi = NULL, */ mi;
8719 /* @ancestorsOnly should be set by an option flag. */
8720 int ancestorsOnly = 0;
8721 int optRemoveRedundantNS =
8722 ((xmlDOMReconcileNSOptions) options & XML_DOM_RECONNS_REMOVEREDUND) ? 1 : 0;
8723 xmlNsPtr *listRedund = NULL;
8724 int sizeRedund = 0, nbRedund = 0, ret, i, j;
8725
8726 if ((elem == NULL) || (elem->doc == NULL) ||
8727 (elem->type != XML_ELEMENT_NODE))
8728 return (-1);
8729
8730 doc = elem->doc;
8731 cur = elem;
8732 do {
8733 switch (cur->type) {
8734 case XML_ELEMENT_NODE:
8735 adoptns = 1;
8736 curElem = cur;
8737 depth++;
8738 /*
8739 * Namespace declarations.
8740 */
8741 if (cur->nsDef != NULL) {
8742 prevns = NULL;
8743 ns = cur->nsDef;
8744 while (ns != NULL) {
8745 if (! parnsdone) {
8746 if ((elem->parent) &&
8747 ((xmlNodePtr) elem->parent->doc != elem->parent)) {
8748 /*
8749 * Gather ancestor in-scope ns-decls.
8750 */
8751 if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
8752 elem->parent) == -1)
8753 goto internal_error;
8754 }
8755 parnsdone = 1;
8756 }
8757
8758 /*
8759 * Lookup the ns ancestor-axis for equal ns-decls in scope.
8760 */
8761 if (optRemoveRedundantNS && XML_NSMAP_NOTEMPTY(nsMap)) {
8762 XML_NSMAP_FOREACH(nsMap, mi) {
8763 if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
8764 (mi->shadowDepth == -1) &&
8765 ((ns->prefix == mi->newNs->prefix) ||
8766 xmlStrEqual(ns->prefix, mi->newNs->prefix)) &&
8767 ((ns->href == mi->newNs->href) ||
8768 xmlStrEqual(ns->href, mi->newNs->href)))
8769 {
8770 /*
8771 * A redundant ns-decl was found.
8772 * Add it to the list of redundant ns-decls.
8773 */
8774 if (xmlDOMWrapNSNormAddNsMapItem2(&listRedund,
8775 &sizeRedund, &nbRedund, ns, mi->newNs) == -1)
8776 goto internal_error;
8777 /*
8778 * Remove the ns-decl from the element-node.
8779 */
8780 if (prevns)
8781 prevns->next = ns->next;
8782 else
8783 cur->nsDef = ns->next;
8784 goto next_ns_decl;
8785 }
8786 }
8787 }
8788
8789 /*
8790 * Skip ns-references handling if the referenced
8791 * ns-decl is declared on the same element.
8792 */
8793 if ((cur->ns != NULL) && adoptns && (cur->ns == ns))
8794 adoptns = 0;
8795 /*
8796 * Does it shadow any ns-decl?
8797 */
8798 if (XML_NSMAP_NOTEMPTY(nsMap)) {
8799 XML_NSMAP_FOREACH(nsMap, mi) {
8800 if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
8801 (mi->shadowDepth == -1) &&
8802 ((ns->prefix == mi->newNs->prefix) ||
8803 xmlStrEqual(ns->prefix, mi->newNs->prefix))) {
8804
8805 mi->shadowDepth = depth;
8806 }
8807 }
8808 }
8809 /*
8810 * Push mapping.
8811 */
8812 if (xmlDOMWrapNsMapAddItem(&nsMap, -1, ns, ns,
8813 depth) == NULL)
8814 goto internal_error;
8815
8816 prevns = ns;
8817 next_ns_decl:
8818 ns = ns->next;
8819 }
8820 }
8821 if (! adoptns)
8822 goto ns_end;
8823 /* No break on purpose. */
8824 case XML_ATTRIBUTE_NODE:
8825 /* No ns, no fun. */
8826 if (cur->ns == NULL)
8827 goto ns_end;
8828
8829 if (! parnsdone) {
8830 if ((elem->parent) &&
8831 ((xmlNodePtr) elem->parent->doc != elem->parent)) {
8832 if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
8833 elem->parent) == -1)
8834 goto internal_error;
8835 }
8836 parnsdone = 1;
8837 }
8838 /*
8839 * Adjust the reference if this was a redundant ns-decl.
8840 */
8841 if (listRedund) {
8842 for (i = 0, j = 0; i < nbRedund; i++, j += 2) {
8843 if (cur->ns == listRedund[j]) {
8844 cur->ns = listRedund[++j];
8845 break;
8846 }
8847 }
8848 }
8849 /*
8850 * Adopt ns-references.
8851 */
8852 if (XML_NSMAP_NOTEMPTY(nsMap)) {
8853 /*
8854 * Search for a mapping.
8855 */
8856 XML_NSMAP_FOREACH(nsMap, mi) {
8857 if ((mi->shadowDepth == -1) &&
8858 (cur->ns == mi->oldNs)) {
8859
8860 cur->ns = mi->newNs;
8861 goto ns_end;
8862 }
8863 }
8864 }
8865 /*
8866 * Aquire a normalized ns-decl and add it to the map.
8867 */
8868 if (xmlDOMWrapNSNormAquireNormalizedNs(doc, curElem,
8869 cur->ns, &ns,
8870 &nsMap, depth,
8871 ancestorsOnly,
8872 (cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)
8873 goto internal_error;
8874 cur->ns = ns;
8875
8876 ns_end:
8877 if ((cur->type == XML_ELEMENT_NODE) &&
8878 (cur->properties != NULL)) {
8879 /*
8880 * Process attributes.
8881 */
8882 cur = (xmlNodePtr) cur->properties;
8883 continue;
8884 }
8885 break;
8886 default:
8887 goto next_sibling;
8888 }
8889 into_content:
8890 if ((cur->type == XML_ELEMENT_NODE) &&
8891 (cur->children != NULL)) {
8892 /*
8893 * Process content of element-nodes only.
8894 */
8895 cur = cur->children;
8896 continue;
8897 }
8898 next_sibling:
8899 if (cur == elem)
8900 break;
8901 if (cur->type == XML_ELEMENT_NODE) {
8902 if (XML_NSMAP_NOTEMPTY(nsMap)) {
8903 /*
8904 * Pop mappings.
8905 */
8906 while ((nsMap->last != NULL) &&
8907 (nsMap->last->depth >= depth))
8908 {
8909 XML_NSMAP_POP(nsMap, mi)
8910 }
8911 /*
8912 * Unshadow.
8913 */
8914 XML_NSMAP_FOREACH(nsMap, mi) {
8915 if (mi->shadowDepth >= depth)
8916 mi->shadowDepth = -1;
8917 }
8918 }
8919 depth--;
8920 }
8921 if (cur->next != NULL)
8922 cur = cur->next;
8923 else {
8924 if (cur->type == XML_ATTRIBUTE_NODE) {
8925 cur = cur->parent;
8926 goto into_content;
8927 }
8928 cur = cur->parent;
8929 goto next_sibling;
8930 }
8931 } while (cur != NULL);
8932
8933 ret = 0;
8934 goto exit;
8935 internal_error:
8936 ret = -1;
8937 exit:
8938 if (listRedund) {
8939 for (i = 0, j = 0; i < nbRedund; i++, j += 2) {
8940 xmlFreeNs(listRedund[j]);
8941 }
8942 xmlFree(listRedund);
8943 }
8944 if (nsMap != NULL)
8945 xmlDOMWrapNsMapFree(nsMap);
8946 return (ret);
8947 }
8948
8949 /*
8950 * xmlDOMWrapAdoptBranch:
8951 * @ctxt: the optional context for custom processing
8952 * @sourceDoc: the optional sourceDoc
8953 * @node: the element-node to start with
8954 * @destDoc: the destination doc for adoption
8955 * @destParent: the optional new parent of @node in @destDoc
8956 * @options: option flags
8957 *
8958 * Ensures that ns-references point to @destDoc: either to
8959 * elements->nsDef entries if @destParent is given, or to
8960 * @destDoc->oldNs otherwise.
8961 * If @destParent is given, it ensures that the tree is namespace
8962 * wellformed by creating additional ns-decls where needed.
8963 * Note that, since prefixes of already existent ns-decls can be
8964 * shadowed by this process, it could break QNames in attribute
8965 * values or element content.
8966 *
8967 * NOTE: This function was not intensively tested.
8968 *
8969 * Returns 0 if succeeded, -1 otherwise and on API/internal errors.
8970 */
8971 static int
xmlDOMWrapAdoptBranch(xmlDOMWrapCtxtPtr ctxt,xmlDocPtr sourceDoc,xmlNodePtr node,xmlDocPtr destDoc,xmlNodePtr destParent,int options ATTRIBUTE_UNUSED)8972 xmlDOMWrapAdoptBranch(xmlDOMWrapCtxtPtr ctxt,
8973 xmlDocPtr sourceDoc,
8974 xmlNodePtr node,
8975 xmlDocPtr destDoc,
8976 xmlNodePtr destParent,
8977 int options ATTRIBUTE_UNUSED)
8978 {
8979 int ret = 0;
8980 xmlNodePtr cur, curElem = NULL;
8981 xmlNsMapPtr nsMap = NULL;
8982 xmlNsMapItemPtr mi;
8983 xmlNsPtr ns = NULL;
8984 int depth = -1, adoptStr = 1;
8985 /* gather @parent's ns-decls. */
8986 int parnsdone;
8987 /* @ancestorsOnly should be set per option. */
8988 int ancestorsOnly = 0;
8989
8990 /*
8991 * Optimize string adoption for equal or none dicts.
8992 */
8993 if ((sourceDoc != NULL) &&
8994 (sourceDoc->dict == destDoc->dict))
8995 adoptStr = 0;
8996 else
8997 adoptStr = 1;
8998
8999 /*
9000 * Get the ns-map from the context if available.
9001 */
9002 if (ctxt)
9003 nsMap = (xmlNsMapPtr) ctxt->namespaceMap;
9004 /*
9005 * Disable search for ns-decls in the parent-axis of the
9006 * desination element, if:
9007 * 1) there's no destination parent
9008 * 2) custom ns-reference handling is used
9009 */
9010 if ((destParent == NULL) ||
9011 (ctxt && ctxt->getNsForNodeFunc))
9012 {
9013 parnsdone = 1;
9014 } else
9015 parnsdone = 0;
9016
9017 cur = node;
9018 if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))
9019 goto internal_error;
9020
9021 while (cur != NULL) {
9022 /*
9023 * Paranoid source-doc sanity check.
9024 */
9025 if (cur->doc != sourceDoc) {
9026 /*
9027 * We'll assume XIncluded nodes if the doc differs.
9028 * TODO: Do we need to reconciliate XIncluded nodes?
9029 * This here skips XIncluded nodes and tries to handle
9030 * broken sequences.
9031 */
9032 if (cur->next == NULL)
9033 goto leave_node;
9034 do {
9035 cur = cur->next;
9036 if ((cur->type == XML_XINCLUDE_END) ||
9037 (cur->doc == node->doc))
9038 break;
9039 } while (cur->next != NULL);
9040
9041 if (cur->doc != node->doc)
9042 goto leave_node;
9043 }
9044 cur->doc = destDoc;
9045 switch (cur->type) {
9046 case XML_XINCLUDE_START:
9047 case XML_XINCLUDE_END:
9048 /*
9049 * TODO
9050 */
9051 return (-1);
9052 case XML_ELEMENT_NODE:
9053 curElem = cur;
9054 depth++;
9055 /*
9056 * Namespace declarations.
9057 * - ns->href and ns->prefix are never in the dict, so
9058 * we need not move the values over to the destination dict.
9059 * - Note that for custom handling of ns-references,
9060 * the ns-decls need not be stored in the ns-map,
9061 * since they won't be referenced by node->ns.
9062 */
9063 if ((cur->nsDef) &&
9064 ((ctxt == NULL) || (ctxt->getNsForNodeFunc == NULL)))
9065 {
9066 if (! parnsdone) {
9067 /*
9068 * Gather @parent's in-scope ns-decls.
9069 */
9070 if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
9071 destParent) == -1)
9072 goto internal_error;
9073 parnsdone = 1;
9074 }
9075 for (ns = cur->nsDef; ns != NULL; ns = ns->next) {
9076 /*
9077 * NOTE: ns->prefix and ns->href are never in the dict.
9078 * XML_TREE_ADOPT_STR(ns->prefix)
9079 * XML_TREE_ADOPT_STR(ns->href)
9080 */
9081 /*
9082 * Does it shadow any ns-decl?
9083 */
9084 if (XML_NSMAP_NOTEMPTY(nsMap)) {
9085 XML_NSMAP_FOREACH(nsMap, mi) {
9086 if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
9087 (mi->shadowDepth == -1) &&
9088 ((ns->prefix == mi->newNs->prefix) ||
9089 xmlStrEqual(ns->prefix,
9090 mi->newNs->prefix))) {
9091
9092 mi->shadowDepth = depth;
9093 }
9094 }
9095 }
9096 /*
9097 * Push mapping.
9098 */
9099 if (xmlDOMWrapNsMapAddItem(&nsMap, -1,
9100 ns, ns, depth) == NULL)
9101 goto internal_error;
9102 }
9103 }
9104 /* No break on purpose. */
9105 case XML_ATTRIBUTE_NODE:
9106 /* No namespace, no fun. */
9107 if (cur->ns == NULL)
9108 goto ns_end;
9109
9110 if (! parnsdone) {
9111 if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
9112 destParent) == -1)
9113 goto internal_error;
9114 parnsdone = 1;
9115 }
9116 /*
9117 * Adopt ns-references.
9118 */
9119 if (XML_NSMAP_NOTEMPTY(nsMap)) {
9120 /*
9121 * Search for a mapping.
9122 */
9123 XML_NSMAP_FOREACH(nsMap, mi) {
9124 if ((mi->shadowDepth == -1) &&
9125 (cur->ns == mi->oldNs)) {
9126
9127 cur->ns = mi->newNs;
9128 goto ns_end;
9129 }
9130 }
9131 }
9132 /*
9133 * No matching namespace in scope. We need a new one.
9134 */
9135 if ((ctxt) && (ctxt->getNsForNodeFunc)) {
9136 /*
9137 * User-defined behaviour.
9138 */
9139 ns = ctxt->getNsForNodeFunc(ctxt, cur,
9140 cur->ns->href, cur->ns->prefix);
9141 /*
9142 * Insert mapping if ns is available; it's the users fault
9143 * if not.
9144 */
9145 if (xmlDOMWrapNsMapAddItem(&nsMap, -1,
9146 cur->ns, ns, XML_TREE_NSMAP_CUSTOM) == NULL)
9147 goto internal_error;
9148 cur->ns = ns;
9149 } else {
9150 /*
9151 * Aquire a normalized ns-decl and add it to the map.
9152 */
9153 if (xmlDOMWrapNSNormAquireNormalizedNs(destDoc,
9154 /* ns-decls on curElem or on destDoc->oldNs */
9155 destParent ? curElem : NULL,
9156 cur->ns, &ns,
9157 &nsMap, depth,
9158 ancestorsOnly,
9159 /* ns-decls must be prefixed for attributes. */
9160 (cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)
9161 goto internal_error;
9162 cur->ns = ns;
9163 }
9164 ns_end:
9165 /*
9166 * Further node properties.
9167 * TODO: Is this all?
9168 */
9169 XML_TREE_ADOPT_STR(cur->name)
9170 if (cur->type == XML_ELEMENT_NODE) {
9171 cur->psvi = NULL;
9172 cur->line = 0;
9173 cur->extra = 0;
9174 /*
9175 * Walk attributes.
9176 */
9177 if (cur->properties != NULL) {
9178 /*
9179 * Process first attribute node.
9180 */
9181 cur = (xmlNodePtr) cur->properties;
9182 continue;
9183 }
9184 } else {
9185 /*
9186 * Attributes.
9187 */
9188 if ((sourceDoc != NULL) &&
9189 (((xmlAttrPtr) cur)->atype == XML_ATTRIBUTE_ID))
9190 {
9191 xmlRemoveID(sourceDoc, (xmlAttrPtr) cur);
9192 }
9193 ((xmlAttrPtr) cur)->atype = 0;
9194 ((xmlAttrPtr) cur)->psvi = NULL;
9195 }
9196 break;
9197 case XML_TEXT_NODE:
9198 case XML_CDATA_SECTION_NODE:
9199 /*
9200 * This puts the content in the dest dict, only if
9201 * it was previously in the source dict.
9202 */
9203 XML_TREE_ADOPT_STR_2(cur->content)
9204 goto leave_node;
9205 case XML_ENTITY_REF_NODE:
9206 /*
9207 * Remove reference to the entitity-node.
9208 */
9209 cur->content = NULL;
9210 cur->children = NULL;
9211 cur->last = NULL;
9212 if ((destDoc->intSubset) || (destDoc->extSubset)) {
9213 xmlEntityPtr ent;
9214 /*
9215 * Assign new entity-node if available.
9216 */
9217 ent = xmlGetDocEntity(destDoc, cur->name);
9218 if (ent != NULL) {
9219 cur->content = ent->content;
9220 cur->children = (xmlNodePtr) ent;
9221 cur->last = (xmlNodePtr) ent;
9222 }
9223 }
9224 goto leave_node;
9225 case XML_PI_NODE:
9226 XML_TREE_ADOPT_STR(cur->name)
9227 XML_TREE_ADOPT_STR_2(cur->content)
9228 break;
9229 case XML_COMMENT_NODE:
9230 break;
9231 default:
9232 goto internal_error;
9233 }
9234 /*
9235 * Walk the tree.
9236 */
9237 if (cur->children != NULL) {
9238 cur = cur->children;
9239 continue;
9240 }
9241
9242 leave_node:
9243 if (cur == node)
9244 break;
9245 if ((cur->type == XML_ELEMENT_NODE) ||
9246 (cur->type == XML_XINCLUDE_START) ||
9247 (cur->type == XML_XINCLUDE_END))
9248 {
9249 /*
9250 * TODO: Do we expect nsDefs on XML_XINCLUDE_START?
9251 */
9252 if (XML_NSMAP_NOTEMPTY(nsMap)) {
9253 /*
9254 * Pop mappings.
9255 */
9256 while ((nsMap->last != NULL) &&
9257 (nsMap->last->depth >= depth))
9258 {
9259 XML_NSMAP_POP(nsMap, mi)
9260 }
9261 /*
9262 * Unshadow.
9263 */
9264 XML_NSMAP_FOREACH(nsMap, mi) {
9265 if (mi->shadowDepth >= depth)
9266 mi->shadowDepth = -1;
9267 }
9268 }
9269 depth--;
9270 }
9271 if (cur->next != NULL)
9272 cur = cur->next;
9273 else if ((cur->type == XML_ATTRIBUTE_NODE) &&
9274 (cur->parent->children != NULL))
9275 {
9276 cur = cur->parent->children;
9277 } else {
9278 cur = cur->parent;
9279 goto leave_node;
9280 }
9281 }
9282
9283 goto exit;
9284
9285 internal_error:
9286 ret = -1;
9287
9288 exit:
9289 /*
9290 * Cleanup.
9291 */
9292 if (nsMap != NULL) {
9293 if ((ctxt) && (ctxt->namespaceMap == nsMap)) {
9294 /*
9295 * Just cleanup the map but don't free.
9296 */
9297 if (nsMap->first) {
9298 if (nsMap->pool)
9299 nsMap->last->next = nsMap->pool;
9300 nsMap->pool = nsMap->first;
9301 nsMap->first = NULL;
9302 }
9303 } else
9304 xmlDOMWrapNsMapFree(nsMap);
9305 }
9306 return(ret);
9307 }
9308
9309 /*
9310 * xmlDOMWrapCloneNode:
9311 * @ctxt: the optional context for custom processing
9312 * @sourceDoc: the optional sourceDoc
9313 * @node: the node to start with
9314 * @resNode: the clone of the given @node
9315 * @destDoc: the destination doc
9316 * @destParent: the optional new parent of @node in @destDoc
9317 * @deep: descend into child if set
9318 * @options: option flags
9319 *
9320 * References of out-of scope ns-decls are remapped to point to @destDoc:
9321 * 1) If @destParent is given, then nsDef entries on element-nodes are used
9322 * 2) If *no* @destParent is given, then @destDoc->oldNs entries are used.
9323 * This is the case when you don't know already where the cloned branch
9324 * will be added to.
9325 *
9326 * If @destParent is given, it ensures that the tree is namespace
9327 * wellformed by creating additional ns-decls where needed.
9328 * Note that, since prefixes of already existent ns-decls can be
9329 * shadowed by this process, it could break QNames in attribute
9330 * values or element content.
9331 * TODO:
9332 * 1) What to do with XInclude? Currently this returns an error for XInclude.
9333 *
9334 * Returns 0 if the operation succeeded,
9335 * 1 if a node of unsupported (or not yet supported) type was given,
9336 * -1 on API/internal errors.
9337 */
9338
9339 int
xmlDOMWrapCloneNode(xmlDOMWrapCtxtPtr ctxt,xmlDocPtr sourceDoc,xmlNodePtr node,xmlNodePtr * resNode,xmlDocPtr destDoc,xmlNodePtr destParent,int deep,int options ATTRIBUTE_UNUSED)9340 xmlDOMWrapCloneNode(xmlDOMWrapCtxtPtr ctxt,
9341 xmlDocPtr sourceDoc,
9342 xmlNodePtr node,
9343 xmlNodePtr *resNode,
9344 xmlDocPtr destDoc,
9345 xmlNodePtr destParent,
9346 int deep,
9347 int options ATTRIBUTE_UNUSED)
9348 {
9349 int ret = 0;
9350 xmlNodePtr cur, curElem = NULL;
9351 xmlNsMapPtr nsMap = NULL;
9352 xmlNsMapItemPtr mi;
9353 xmlNsPtr ns;
9354 int depth = -1;
9355 /* int adoptStr = 1; */
9356 /* gather @parent's ns-decls. */
9357 int parnsdone = 0;
9358 /*
9359 * @ancestorsOnly:
9360 * TODO: @ancestorsOnly should be set per option.
9361 *
9362 */
9363 int ancestorsOnly = 0;
9364 xmlNodePtr resultClone = NULL, clone = NULL, parentClone = NULL, prevClone = NULL;
9365 xmlNsPtr cloneNs = NULL, *cloneNsDefSlot = NULL;
9366 xmlDictPtr dict; /* The destination dict */
9367
9368 if ((node == NULL) || (resNode == NULL) || (destDoc == NULL))
9369 return(-1);
9370 /*
9371 * TODO: Initially we support only element-nodes.
9372 */
9373 if (node->type != XML_ELEMENT_NODE)
9374 return(1);
9375 /*
9376 * Check node->doc sanity.
9377 */
9378 if ((node->doc != NULL) && (sourceDoc != NULL) &&
9379 (node->doc != sourceDoc)) {
9380 /*
9381 * Might be an XIncluded node.
9382 */
9383 return (-1);
9384 }
9385 if (sourceDoc == NULL)
9386 sourceDoc = node->doc;
9387 if (sourceDoc == NULL)
9388 return (-1);
9389
9390 dict = destDoc->dict;
9391 /*
9392 * Reuse the namespace map of the context.
9393 */
9394 if (ctxt)
9395 nsMap = (xmlNsMapPtr) ctxt->namespaceMap;
9396
9397 *resNode = NULL;
9398
9399 cur = node;
9400 if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))
9401 return(-1);
9402
9403 while (cur != NULL) {
9404 if (cur->doc != sourceDoc) {
9405 /*
9406 * We'll assume XIncluded nodes if the doc differs.
9407 * TODO: Do we need to reconciliate XIncluded nodes?
9408 * TODO: This here returns -1 in this case.
9409 */
9410 goto internal_error;
9411 }
9412 /*
9413 * Create a new node.
9414 */
9415 switch (cur->type) {
9416 case XML_XINCLUDE_START:
9417 case XML_XINCLUDE_END:
9418 /*
9419 * TODO: What to do with XInclude?
9420 */
9421 goto internal_error;
9422 break;
9423 case XML_ELEMENT_NODE:
9424 case XML_TEXT_NODE:
9425 case XML_CDATA_SECTION_NODE:
9426 case XML_COMMENT_NODE:
9427 case XML_PI_NODE:
9428 case XML_DOCUMENT_FRAG_NODE:
9429 case XML_ENTITY_REF_NODE:
9430 case XML_ENTITY_NODE:
9431 /*
9432 * Nodes of xmlNode structure.
9433 */
9434 clone = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
9435 if (clone == NULL) {
9436 xmlTreeErrMemory("xmlDOMWrapCloneNode(): allocating a node");
9437 goto internal_error;
9438 }
9439 memset(clone, 0, sizeof(xmlNode));
9440 /*
9441 * Set hierachical links.
9442 */
9443 if (resultClone != NULL) {
9444 clone->parent = parentClone;
9445 if (prevClone) {
9446 prevClone->next = clone;
9447 clone->prev = prevClone;
9448 } else
9449 parentClone->children = clone;
9450 } else
9451 resultClone = clone;
9452
9453 break;
9454 case XML_ATTRIBUTE_NODE:
9455 /*
9456 * Attributes (xmlAttr).
9457 */
9458 clone = (xmlNodePtr) xmlMalloc(sizeof(xmlAttr));
9459 if (clone == NULL) {
9460 xmlTreeErrMemory("xmlDOMWrapCloneNode(): allocating an attr-node");
9461 goto internal_error;
9462 }
9463 memset(clone, 0, sizeof(xmlAttr));
9464 /*
9465 * Set hierachical links.
9466 * TODO: Change this to add to the end of attributes.
9467 */
9468 if (resultClone != NULL) {
9469 clone->parent = parentClone;
9470 if (prevClone) {
9471 prevClone->next = clone;
9472 clone->prev = prevClone;
9473 } else
9474 parentClone->properties = (xmlAttrPtr) clone;
9475 } else
9476 resultClone = clone;
9477 break;
9478 default:
9479 /*
9480 * TODO QUESTION: Any other nodes expected?
9481 */
9482 goto internal_error;
9483 }
9484
9485 clone->type = cur->type;
9486 clone->doc = destDoc;
9487
9488 /*
9489 * Clone the name of the node if any.
9490 */
9491 if (cur->name == xmlStringText)
9492 clone->name = xmlStringText;
9493 else if (cur->name == xmlStringTextNoenc)
9494 /*
9495 * NOTE: Although xmlStringTextNoenc is never assigned to a node
9496 * in tree.c, it might be set in Libxslt via
9497 * "xsl:disable-output-escaping".
9498 */
9499 clone->name = xmlStringTextNoenc;
9500 else if (cur->name == xmlStringComment)
9501 clone->name = xmlStringComment;
9502 else if (cur->name != NULL) {
9503 DICT_CONST_COPY(cur->name, clone->name);
9504 }
9505
9506 switch (cur->type) {
9507 case XML_XINCLUDE_START:
9508 case XML_XINCLUDE_END:
9509 /*
9510 * TODO
9511 */
9512 return (-1);
9513 case XML_ELEMENT_NODE:
9514 curElem = cur;
9515 depth++;
9516 /*
9517 * Namespace declarations.
9518 */
9519 if (cur->nsDef != NULL) {
9520 if (! parnsdone) {
9521 if (destParent && (ctxt == NULL)) {
9522 /*
9523 * Gather @parent's in-scope ns-decls.
9524 */
9525 if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
9526 destParent) == -1)
9527 goto internal_error;
9528 }
9529 parnsdone = 1;
9530 }
9531 /*
9532 * Clone namespace declarations.
9533 */
9534 cloneNsDefSlot = &(clone->nsDef);
9535 for (ns = cur->nsDef; ns != NULL; ns = ns->next) {
9536 /*
9537 * Create a new xmlNs.
9538 */
9539 cloneNs = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
9540 if (cloneNs == NULL) {
9541 xmlTreeErrMemory("xmlDOMWrapCloneNode(): "
9542 "allocating namespace");
9543 return(-1);
9544 }
9545 memset(cloneNs, 0, sizeof(xmlNs));
9546 cloneNs->type = XML_LOCAL_NAMESPACE;
9547
9548 if (ns->href != NULL)
9549 cloneNs->href = xmlStrdup(ns->href);
9550 if (ns->prefix != NULL)
9551 cloneNs->prefix = xmlStrdup(ns->prefix);
9552
9553 *cloneNsDefSlot = cloneNs;
9554 cloneNsDefSlot = &(cloneNs->next);
9555
9556 /*
9557 * Note that for custom handling of ns-references,
9558 * the ns-decls need not be stored in the ns-map,
9559 * since they won't be referenced by node->ns.
9560 */
9561 if ((ctxt == NULL) ||
9562 (ctxt->getNsForNodeFunc == NULL))
9563 {
9564 /*
9565 * Does it shadow any ns-decl?
9566 */
9567 if (XML_NSMAP_NOTEMPTY(nsMap)) {
9568 XML_NSMAP_FOREACH(nsMap, mi) {
9569 if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
9570 (mi->shadowDepth == -1) &&
9571 ((ns->prefix == mi->newNs->prefix) ||
9572 xmlStrEqual(ns->prefix,
9573 mi->newNs->prefix))) {
9574 /*
9575 * Mark as shadowed at the current
9576 * depth.
9577 */
9578 mi->shadowDepth = depth;
9579 }
9580 }
9581 }
9582 /*
9583 * Push mapping.
9584 */
9585 if (xmlDOMWrapNsMapAddItem(&nsMap, -1,
9586 ns, cloneNs, depth) == NULL)
9587 goto internal_error;
9588 }
9589 }
9590 }
9591 /* cur->ns will be processed further down. */
9592 break;
9593 case XML_ATTRIBUTE_NODE:
9594 /* IDs will be processed further down. */
9595 /* cur->ns will be processed further down. */
9596 break;
9597 case XML_TEXT_NODE:
9598 case XML_CDATA_SECTION_NODE:
9599 /*
9600 * Note that this will also cover the values of attributes.
9601 */
9602 DICT_COPY(cur->content, clone->content);
9603 goto leave_node;
9604 case XML_ENTITY_NODE:
9605 /* TODO: What to do here? */
9606 goto leave_node;
9607 case XML_ENTITY_REF_NODE:
9608 if (sourceDoc != destDoc) {
9609 if ((destDoc->intSubset) || (destDoc->extSubset)) {
9610 xmlEntityPtr ent;
9611 /*
9612 * Different doc: Assign new entity-node if available.
9613 */
9614 ent = xmlGetDocEntity(destDoc, cur->name);
9615 if (ent != NULL) {
9616 clone->content = ent->content;
9617 clone->children = (xmlNodePtr) ent;
9618 clone->last = (xmlNodePtr) ent;
9619 }
9620 }
9621 } else {
9622 /*
9623 * Same doc: Use the current node's entity declaration
9624 * and value.
9625 */
9626 clone->content = cur->content;
9627 clone->children = cur->children;
9628 clone->last = cur->last;
9629 }
9630 goto leave_node;
9631 case XML_PI_NODE:
9632 DICT_COPY(cur->content, clone->content);
9633 goto leave_node;
9634 case XML_COMMENT_NODE:
9635 DICT_COPY(cur->content, clone->content);
9636 goto leave_node;
9637 default:
9638 goto internal_error;
9639 }
9640
9641 if (cur->ns == NULL)
9642 goto end_ns_reference;
9643
9644 /* handle_ns_reference: */
9645 /*
9646 ** The following will take care of references to ns-decls ********
9647 ** and is intended only for element- and attribute-nodes.
9648 **
9649 */
9650 if (! parnsdone) {
9651 if (destParent && (ctxt == NULL)) {
9652 if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap, destParent) == -1)
9653 goto internal_error;
9654 }
9655 parnsdone = 1;
9656 }
9657 /*
9658 * Adopt ns-references.
9659 */
9660 if (XML_NSMAP_NOTEMPTY(nsMap)) {
9661 /*
9662 * Search for a mapping.
9663 */
9664 XML_NSMAP_FOREACH(nsMap, mi) {
9665 if ((mi->shadowDepth == -1) &&
9666 (cur->ns == mi->oldNs)) {
9667 /*
9668 * This is the nice case: a mapping was found.
9669 */
9670 clone->ns = mi->newNs;
9671 goto end_ns_reference;
9672 }
9673 }
9674 }
9675 /*
9676 * No matching namespace in scope. We need a new one.
9677 */
9678 if ((ctxt != NULL) && (ctxt->getNsForNodeFunc != NULL)) {
9679 /*
9680 * User-defined behaviour.
9681 */
9682 ns = ctxt->getNsForNodeFunc(ctxt, cur,
9683 cur->ns->href, cur->ns->prefix);
9684 /*
9685 * Add user's mapping.
9686 */
9687 if (xmlDOMWrapNsMapAddItem(&nsMap, -1,
9688 cur->ns, ns, XML_TREE_NSMAP_CUSTOM) == NULL)
9689 goto internal_error;
9690 clone->ns = ns;
9691 } else {
9692 /*
9693 * Aquire a normalized ns-decl and add it to the map.
9694 */
9695 if (xmlDOMWrapNSNormAquireNormalizedNs(destDoc,
9696 /* ns-decls on curElem or on destDoc->oldNs */
9697 destParent ? curElem : NULL,
9698 cur->ns, &ns,
9699 &nsMap, depth,
9700 /* if we need to search only in the ancestor-axis */
9701 ancestorsOnly,
9702 /* ns-decls must be prefixed for attributes. */
9703 (cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)
9704 goto internal_error;
9705 clone->ns = ns;
9706 }
9707
9708 end_ns_reference:
9709
9710 /*
9711 * Some post-processing.
9712 *
9713 * Handle ID attributes.
9714 */
9715 if ((clone->type == XML_ATTRIBUTE_NODE) &&
9716 (clone->parent != NULL))
9717 {
9718 if (xmlIsID(destDoc, clone->parent, (xmlAttrPtr) clone)) {
9719
9720 xmlChar *idVal;
9721
9722 idVal = xmlNodeListGetString(cur->doc, cur->children, 1);
9723 if (idVal != NULL) {
9724 if (xmlAddID(NULL, destDoc, idVal, (xmlAttrPtr) cur) == NULL) {
9725 /* TODO: error message. */
9726 xmlFree(idVal);
9727 goto internal_error;
9728 }
9729 xmlFree(idVal);
9730 }
9731 }
9732 }
9733 /*
9734 **
9735 ** The following will traverse the tree **************************
9736 **
9737 *
9738 * Walk the element's attributes before descending into child-nodes.
9739 */
9740 if ((cur->type == XML_ELEMENT_NODE) && (cur->properties != NULL)) {
9741 prevClone = NULL;
9742 parentClone = clone;
9743 cur = (xmlNodePtr) cur->properties;
9744 continue;
9745 }
9746 into_content:
9747 /*
9748 * Descend into child-nodes.
9749 */
9750 if (cur->children != NULL) {
9751 if (deep || (cur->type == XML_ATTRIBUTE_NODE)) {
9752 prevClone = NULL;
9753 parentClone = clone;
9754 cur = cur->children;
9755 continue;
9756 }
9757 }
9758
9759 leave_node:
9760 /*
9761 * At this point we are done with the node, its content
9762 * and an element-nodes's attribute-nodes.
9763 */
9764 if (cur == node)
9765 break;
9766 if ((cur->type == XML_ELEMENT_NODE) ||
9767 (cur->type == XML_XINCLUDE_START) ||
9768 (cur->type == XML_XINCLUDE_END)) {
9769 /*
9770 * TODO: Do we expect nsDefs on XML_XINCLUDE_START?
9771 */
9772 if (XML_NSMAP_NOTEMPTY(nsMap)) {
9773 /*
9774 * Pop mappings.
9775 */
9776 while ((nsMap->last != NULL) &&
9777 (nsMap->last->depth >= depth))
9778 {
9779 XML_NSMAP_POP(nsMap, mi)
9780 }
9781 /*
9782 * Unshadow.
9783 */
9784 XML_NSMAP_FOREACH(nsMap, mi) {
9785 if (mi->shadowDepth >= depth)
9786 mi->shadowDepth = -1;
9787 }
9788 }
9789 depth--;
9790 }
9791 if (cur->next != NULL) {
9792 prevClone = clone;
9793 cur = cur->next;
9794 } else if (cur->type != XML_ATTRIBUTE_NODE) {
9795 /*
9796 * Set clone->last.
9797 */
9798 if (clone->parent != NULL)
9799 clone->parent->last = clone;
9800 clone = clone->parent;
9801 if (clone != NULL)
9802 parentClone = clone->parent;
9803 /*
9804 * Process parent --> next;
9805 */
9806 cur = cur->parent;
9807 goto leave_node;
9808 } else {
9809 /* This is for attributes only. */
9810 clone = clone->parent;
9811 parentClone = clone->parent;
9812 /*
9813 * Process parent-element --> children.
9814 */
9815 cur = cur->parent;
9816 goto into_content;
9817 }
9818 }
9819 goto exit;
9820
9821 internal_error:
9822 ret = -1;
9823
9824 exit:
9825 /*
9826 * Cleanup.
9827 */
9828 if (nsMap != NULL) {
9829 if ((ctxt) && (ctxt->namespaceMap == nsMap)) {
9830 /*
9831 * Just cleanup the map but don't free.
9832 */
9833 if (nsMap->first) {
9834 if (nsMap->pool)
9835 nsMap->last->next = nsMap->pool;
9836 nsMap->pool = nsMap->first;
9837 nsMap->first = NULL;
9838 }
9839 } else
9840 xmlDOMWrapNsMapFree(nsMap);
9841 }
9842 /*
9843 * TODO: Should we try a cleanup of the cloned node in case of a
9844 * fatal error?
9845 */
9846 *resNode = resultClone;
9847 return (ret);
9848 }
9849
9850 /*
9851 * xmlDOMWrapAdoptAttr:
9852 * @ctxt: the optional context for custom processing
9853 * @sourceDoc: the optional source document of attr
9854 * @attr: the attribute-node to be adopted
9855 * @destDoc: the destination doc for adoption
9856 * @destParent: the optional new parent of @attr in @destDoc
9857 * @options: option flags
9858 *
9859 * @attr is adopted by @destDoc.
9860 * Ensures that ns-references point to @destDoc: either to
9861 * elements->nsDef entries if @destParent is given, or to
9862 * @destDoc->oldNs otherwise.
9863 *
9864 * Returns 0 if succeeded, -1 otherwise and on API/internal errors.
9865 */
9866 static int
xmlDOMWrapAdoptAttr(xmlDOMWrapCtxtPtr ctxt,xmlDocPtr sourceDoc,xmlAttrPtr attr,xmlDocPtr destDoc,xmlNodePtr destParent,int options ATTRIBUTE_UNUSED)9867 xmlDOMWrapAdoptAttr(xmlDOMWrapCtxtPtr ctxt,
9868 xmlDocPtr sourceDoc,
9869 xmlAttrPtr attr,
9870 xmlDocPtr destDoc,
9871 xmlNodePtr destParent,
9872 int options ATTRIBUTE_UNUSED)
9873 {
9874 xmlNodePtr cur;
9875 int adoptStr = 1;
9876
9877 if ((attr == NULL) || (destDoc == NULL))
9878 return (-1);
9879
9880 attr->doc = destDoc;
9881 if (attr->ns != NULL) {
9882 xmlNsPtr ns = NULL;
9883
9884 if (ctxt != NULL) {
9885 /* TODO: User defined. */
9886 }
9887 /* XML Namespace. */
9888 if (IS_STR_XML(attr->ns->prefix)) {
9889 ns = xmlTreeEnsureXMLDecl(destDoc);
9890 } else if (destParent == NULL) {
9891 /*
9892 * Store in @destDoc->oldNs.
9893 */
9894 ns = xmlDOMWrapStoreNs(destDoc, attr->ns->href, attr->ns->prefix);
9895 } else {
9896 /*
9897 * Declare on @destParent.
9898 */
9899 if (xmlSearchNsByNamespaceStrict(destDoc, destParent, attr->ns->href,
9900 &ns, 1) == -1)
9901 goto internal_error;
9902 if (ns == NULL) {
9903 ns = xmlDOMWrapNSNormDeclareNsForced(destDoc, destParent,
9904 attr->ns->href, attr->ns->prefix, 1);
9905 }
9906 }
9907 if (ns == NULL)
9908 goto internal_error;
9909 attr->ns = ns;
9910 }
9911
9912 XML_TREE_ADOPT_STR(attr->name);
9913 attr->atype = 0;
9914 attr->psvi = NULL;
9915 /*
9916 * Walk content.
9917 */
9918 if (attr->children == NULL)
9919 return (0);
9920 cur = attr->children;
9921 if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))
9922 goto internal_error;
9923 while (cur != NULL) {
9924 cur->doc = destDoc;
9925 switch (cur->type) {
9926 case XML_TEXT_NODE:
9927 case XML_CDATA_SECTION_NODE:
9928 XML_TREE_ADOPT_STR_2(cur->content)
9929 break;
9930 case XML_ENTITY_REF_NODE:
9931 /*
9932 * Remove reference to the entitity-node.
9933 */
9934 cur->content = NULL;
9935 cur->children = NULL;
9936 cur->last = NULL;
9937 if ((destDoc->intSubset) || (destDoc->extSubset)) {
9938 xmlEntityPtr ent;
9939 /*
9940 * Assign new entity-node if available.
9941 */
9942 ent = xmlGetDocEntity(destDoc, cur->name);
9943 if (ent != NULL) {
9944 cur->content = ent->content;
9945 cur->children = (xmlNodePtr) ent;
9946 cur->last = (xmlNodePtr) ent;
9947 }
9948 }
9949 break;
9950 default:
9951 break;
9952 }
9953 if (cur->children != NULL) {
9954 cur = cur->children;
9955 continue;
9956 }
9957 next_sibling:
9958 if (cur == (xmlNodePtr) attr)
9959 break;
9960 if (cur->next != NULL)
9961 cur = cur->next;
9962 else {
9963 cur = cur->parent;
9964 goto next_sibling;
9965 }
9966 }
9967 return (0);
9968 internal_error:
9969 return (-1);
9970 }
9971
9972 /*
9973 * xmlDOMWrapAdoptNode:
9974 * @ctxt: the optional context for custom processing
9975 * @sourceDoc: the optional sourceDoc
9976 * @node: the node to start with
9977 * @destDoc: the destination doc
9978 * @destParent: the optional new parent of @node in @destDoc
9979 * @options: option flags
9980 *
9981 * References of out-of scope ns-decls are remapped to point to @destDoc:
9982 * 1) If @destParent is given, then nsDef entries on element-nodes are used
9983 * 2) If *no* @destParent is given, then @destDoc->oldNs entries are used
9984 * This is the case when you have an unlinked node and just want to move it
9985 * to the context of
9986 *
9987 * If @destParent is given, it ensures that the tree is namespace
9988 * wellformed by creating additional ns-decls where needed.
9989 * Note that, since prefixes of already existent ns-decls can be
9990 * shadowed by this process, it could break QNames in attribute
9991 * values or element content.
9992 * NOTE: This function was not intensively tested.
9993 *
9994 * Returns 0 if the operation succeeded,
9995 * 1 if a node of unsupported type was given,
9996 * 2 if a node of not yet supported type was given and
9997 * -1 on API/internal errors.
9998 */
9999 int
xmlDOMWrapAdoptNode(xmlDOMWrapCtxtPtr ctxt,xmlDocPtr sourceDoc,xmlNodePtr node,xmlDocPtr destDoc,xmlNodePtr destParent,int options)10000 xmlDOMWrapAdoptNode(xmlDOMWrapCtxtPtr ctxt,
10001 xmlDocPtr sourceDoc,
10002 xmlNodePtr node,
10003 xmlDocPtr destDoc,
10004 xmlNodePtr destParent,
10005 int options)
10006 {
10007 if ((node == NULL) || (node->type == XML_NAMESPACE_DECL) ||
10008 (destDoc == NULL) ||
10009 ((destParent != NULL) && (destParent->doc != destDoc)))
10010 return(-1);
10011 /*
10012 * Check node->doc sanity.
10013 */
10014 if ((node->doc != NULL) && (sourceDoc != NULL) &&
10015 (node->doc != sourceDoc)) {
10016 /*
10017 * Might be an XIncluded node.
10018 */
10019 return (-1);
10020 }
10021 if (sourceDoc == NULL)
10022 sourceDoc = node->doc;
10023 if (sourceDoc == destDoc)
10024 return (-1);
10025 switch (node->type) {
10026 case XML_ELEMENT_NODE:
10027 case XML_ATTRIBUTE_NODE:
10028 case XML_TEXT_NODE:
10029 case XML_CDATA_SECTION_NODE:
10030 case XML_ENTITY_REF_NODE:
10031 case XML_PI_NODE:
10032 case XML_COMMENT_NODE:
10033 break;
10034 case XML_DOCUMENT_FRAG_NODE:
10035 /* TODO: Support document-fragment-nodes. */
10036 return (2);
10037 default:
10038 return (1);
10039 }
10040 /*
10041 * Unlink only if @node was not already added to @destParent.
10042 */
10043 if ((node->parent != NULL) && (destParent != node->parent))
10044 xmlUnlinkNode(node);
10045
10046 if (node->type == XML_ELEMENT_NODE) {
10047 return (xmlDOMWrapAdoptBranch(ctxt, sourceDoc, node,
10048 destDoc, destParent, options));
10049 } else if (node->type == XML_ATTRIBUTE_NODE) {
10050 return (xmlDOMWrapAdoptAttr(ctxt, sourceDoc,
10051 (xmlAttrPtr) node, destDoc, destParent, options));
10052 } else {
10053 xmlNodePtr cur = node;
10054 int adoptStr = 1;
10055
10056 cur->doc = destDoc;
10057 /*
10058 * Optimize string adoption.
10059 */
10060 if ((sourceDoc != NULL) &&
10061 (sourceDoc->dict == destDoc->dict))
10062 adoptStr = 0;
10063 switch (node->type) {
10064 case XML_TEXT_NODE:
10065 case XML_CDATA_SECTION_NODE:
10066 XML_TREE_ADOPT_STR_2(node->content)
10067 break;
10068 case XML_ENTITY_REF_NODE:
10069 /*
10070 * Remove reference to the entitity-node.
10071 */
10072 node->content = NULL;
10073 node->children = NULL;
10074 node->last = NULL;
10075 if ((destDoc->intSubset) || (destDoc->extSubset)) {
10076 xmlEntityPtr ent;
10077 /*
10078 * Assign new entity-node if available.
10079 */
10080 ent = xmlGetDocEntity(destDoc, node->name);
10081 if (ent != NULL) {
10082 node->content = ent->content;
10083 node->children = (xmlNodePtr) ent;
10084 node->last = (xmlNodePtr) ent;
10085 }
10086 }
10087 XML_TREE_ADOPT_STR(node->name)
10088 break;
10089 case XML_PI_NODE: {
10090 XML_TREE_ADOPT_STR(node->name)
10091 XML_TREE_ADOPT_STR_2(node->content)
10092 break;
10093 }
10094 default:
10095 break;
10096 }
10097 }
10098 return (0);
10099 }
10100
10101 #define bottom_tree
10102 #include "elfgcchack.h"
10103