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source: protocols/jabber/xmlparse.c @ 68b50b5f

Last change on this file since 68b50b5f was b7d3cc34, checked in by Wilmer van der Gaast <wilmer@…>, at 2005-11-06T18:23:18Z
Initial repository (0.99 release tree)
Property mode set to `100644`
File size: 90.0 KB

Line
1	/*
2	The contents of this file are subject to the Mozilla Public License
3	Version 1.1 (the "License"); you may not use this file except in
4	compliance with the License. You may obtain a copy of the License at
5	http://www.mozilla.org/MPL/
6
7	Software distributed under the License is distributed on an "AS IS"
8	basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
9	License for the specific language governing rights and limitations
10	under the License.
11
12	The Original Code is expat.
13
14	The Initial Developer of the Original Code is James Clark.
15	Portions created by James Clark are Copyright (C) 1998, 1999
16	James Clark. All Rights Reserved.
17
18	Contributor(s):
19
20	*/
21
22	#include "xmldef.h"
23	#include "xmlparse.h"
24
25	#ifdef XML_UNICODE
26	#define XML_ENCODE_MAX XML_UTF16_ENCODE_MAX
27	#define XmlConvert XmlUtf16Convert
28	#define XmlGetInternalEncoding XmlGetUtf16InternalEncoding
29	#define XmlGetInternalEncodingNS XmlGetUtf16InternalEncodingNS
30	#define XmlEncode XmlUtf16Encode
31	#define MUST_CONVERT(enc, s) (!(enc)->isUtf16 \|\| (((unsigned long)s) & 1))
32	typedef unsigned short ICHAR;
33	#else
34	#define XML_ENCODE_MAX XML_UTF8_ENCODE_MAX
35	#define XmlConvert XmlUtf8Convert
36	#define XmlGetInternalEncoding XmlGetUtf8InternalEncoding
37	#define XmlGetInternalEncodingNS XmlGetUtf8InternalEncodingNS
38	#define XmlEncode XmlUtf8Encode
39	#define MUST_CONVERT(enc, s) (!(enc)->isUtf8)
40	typedef char ICHAR;
41	#endif
42
43
44	#ifndef XML_NS
45
46	#define XmlInitEncodingNS XmlInitEncoding
47	#define XmlInitUnknownEncodingNS XmlInitUnknownEncoding
48	#undef XmlGetInternalEncodingNS
49	#define XmlGetInternalEncodingNS XmlGetInternalEncoding
50	#define XmlParseXmlDeclNS XmlParseXmlDecl
51
52	#endif
53
54
55	#ifdef XML_UNICODE_WCHAR_T
56	#define XML_T(x) L ## x
57	#else
58	#define XML_T(x) x
59	#endif
60
61	/* Round up n to be a multiple of sz, where sz is a power of 2. */
62	#define ROUND_UP(n, sz) (((n) + ((sz) - 1)) & ~((sz) - 1))
63
64	#include "xmltok.h"
65	#include "xmlrole.h"
66	#include "hashtable.h"
67
68	#define INIT_TAG_BUF_SIZE 32 /* must be a multiple of sizeof(XML_Char) */
69	#define INIT_DATA_BUF_SIZE 1024
70	#define INIT_ATTS_SIZE 16
71	#define INIT_BLOCK_SIZE 1024
72	#define INIT_BUFFER_SIZE 1024
73
74	#define EXPAND_SPARE 24
75
76	typedef struct binding {
77	struct prefix *prefix;
78	struct binding *nextTagBinding;
79	struct binding *prevPrefixBinding;
80	const struct attribute_id *attId;
81	XML_Char *uri;
82	int uriLen;
83	int uriAlloc;
84	} BINDING;
85
86	typedef struct prefix {
87	const XML_Char *name;
88	BINDING *binding;
89	} PREFIX;
90
91	typedef struct {
92	const XML_Char *str;
93	const XML_Char *localPart;
94	int uriLen;
95	} TAG_NAME;
96
97	typedef struct tag {
98	struct tag *parent;
99	const char *rawName;
100	int rawNameLength;
101	TAG_NAME name;
102	char *buf;
103	char *bufEnd;
104	BINDING *bindings;
105	} TAG;
106
107	typedef struct {
108	const XML_Char *name;
109	const XML_Char *textPtr;
110	int textLen;
111	const XML_Char *systemId;
112	const XML_Char *base;
113	const XML_Char *publicId;
114	const XML_Char *notation;
115	char open;
116	} ENTITY;
117
118	typedef struct block {
119	struct block *next;
120	int size;
121	XML_Char s[1];
122	} BLOCK;
123
124	typedef struct {
125	BLOCK *blocks;
126	BLOCK *freeBlocks;
127	const XML_Char *end;
128	XML_Char *ptr;
129	XML_Char *start;
130	} STRING_POOL;
131
132	/* The XML_Char before the name is used to determine whether
133	an attribute has been specified. */
134	typedef struct attribute_id {
135	XML_Char *name;
136	PREFIX *prefix;
137	char maybeTokenized;
138	char xmlns;
139	} ATTRIBUTE_ID;
140
141	typedef struct {
142	const ATTRIBUTE_ID *id;
143	char isCdata;
144	const XML_Char *value;
145	} DEFAULT_ATTRIBUTE;
146
147	typedef struct {
148	const XML_Char *name;
149	PREFIX *prefix;
150	int nDefaultAtts;
151	int allocDefaultAtts;
152	DEFAULT_ATTRIBUTE *defaultAtts;
153	} ELEMENT_TYPE;
154
155	typedef struct {
156	HASH_TABLE generalEntities;
157	HASH_TABLE elementTypes;
158	HASH_TABLE attributeIds;
159	HASH_TABLE prefixes;
160	STRING_POOL pool;
161	int complete;
162	int standalone;
163	const XML_Char *base;
164	PREFIX defaultPrefix;
165	} DTD;
166
167	typedef struct open_internal_entity {
168	const char *internalEventPtr;
169	const char *internalEventEndPtr;
170	struct open_internal_entity *next;
171	ENTITY *entity;
172	} OPEN_INTERNAL_ENTITY;
173
174	typedef enum XML_Error Processor(XML_Parser parser,
175	const char *start,
176	const char *end,
177	const char **endPtr);
178
179	static Processor prologProcessor;
180	static Processor prologInitProcessor;
181	static Processor contentProcessor;
182	static Processor cdataSectionProcessor;
183	static Processor epilogProcessor;
184
185	static enum XML_Error
186	handleUnknownEncoding(XML_Parser parser, const XML_Char *encodingName);
187	static enum XML_Error
188	processXmlDecl(XML_Parser parser, int isGeneralTextEntity, const char , const char );
189	static enum XML_Error
190	initializeEncoding(XML_Parser parser);
191	static enum XML_Error
192	doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
193	const char start, const char end, const char **endPtr);
194	static enum XML_Error
195	doCdataSection(XML_Parser parser, const ENCODING , const char startPtr, const char end, const char **nextPtr);
196	static enum XML_Error storeAtts(XML_Parser parser, const ENCODING , const char s,
197	TAG_NAME tagNamePtr, BINDING *bindingsPtr);
198	static
199	int addBinding(XML_Parser parser, PREFIX prefix, const ATTRIBUTE_ID attId, const XML_Char uri, BINDING *bindingsPtr);
200	static int
201	defineAttribute(ELEMENT_TYPE type, ATTRIBUTE_ID , int isCdata, const XML_Char *dfltValue);
202	static enum XML_Error
203	storeAttributeValue(XML_Parser parser, const ENCODING , int isCdata, const char , const char *,
204	STRING_POOL *);
205	static enum XML_Error
206	appendAttributeValue(XML_Parser parser, const ENCODING , int isCdata, const char , const char *,
207	STRING_POOL *);
208	static ATTRIBUTE_ID *
209	getAttributeId(XML_Parser parser, const ENCODING enc, const char start, const char *end);
210	static int setElementTypePrefix(XML_Parser parser, ELEMENT_TYPE *);
211	static enum XML_Error
212	storeEntityValue(XML_Parser parser, const char start, const char end);
213	static int
214	reportProcessingInstruction(XML_Parser parser, const ENCODING enc, const char start, const char *end);
215	static int
216	reportComment(XML_Parser parser, const ENCODING enc, const char start, const char *end);
217	static void
218	reportDefault(XML_Parser parser, const ENCODING enc, const char start, const char *end);
219
220	static const XML_Char *getContext(XML_Parser parser);
221	static void normalizePublicId(XML_Char *s);
222	static int dtdInit(DTD *);
223	static void dtdDestroy(DTD *);
224	static void poolInit(STRING_POOL *);
225	static void poolClear(STRING_POOL *);
226	static void poolDestroy(STRING_POOL *);
227	static XML_Char poolAppend(STRING_POOL pool, const ENCODING *enc,
228	const char ptr, const char end);
229	static XML_Char poolStoreString(STRING_POOL pool, const ENCODING *enc,
230	const char ptr, const char end);
231	static int poolGrow(STRING_POOL *pool);
232	static const XML_Char poolCopyString(STRING_POOL pool, const XML_Char *s);
233	static void *XML_GetBuffer(XML_Parser parser, int len);
234	static int XML_ParseBuffer(XML_Parser parser, int len, int isFinal);
235
236	#define poolStart(pool) ((pool)->start)
237	#define poolEnd(pool) ((pool)->ptr)
238	#define poolLength(pool) ((pool)->ptr - (pool)->start)
239	#define poolChop(pool) ((void)--(pool->ptr))
240	#define poolLastChar(pool) (((pool)->ptr)[-1])
241	#define poolDiscard(pool) ((pool)->ptr = (pool)->start)
242	#define poolFinish(pool) ((pool)->start = (pool)->ptr)
243	#define poolAppendChar(pool, c) \
244	(((pool)->ptr == (pool)->end && !poolGrow(pool)) \
245	? 0 \
246	: ((*((pool)->ptr)++ = c), 1))
247
248	typedef struct {
249	/* The first member must be userData so that the XML_GetUserData macro works. */
250	void *m_userData;
251	void *m_handlerArg;
252	char *m_buffer;
253	/* first character to be parsed */
254	const char *m_bufferPtr;
255	/* past last character to be parsed */
256	char *m_bufferEnd;
257	/* allocated end of buffer */
258	const char *m_bufferLim;
259	long m_parseEndByteIndex;
260	const char *m_parseEndPtr;
261	XML_Char *m_dataBuf;
262	XML_Char *m_dataBufEnd;
263	XML_StartElementHandler m_startElementHandler;
264	XML_EndElementHandler m_endElementHandler;
265	XML_CharacterDataHandler m_characterDataHandler;
266	XML_ProcessingInstructionHandler m_processingInstructionHandler;
267	XML_CommentHandler m_commentHandler;
268	XML_StartCdataSectionHandler m_startCdataSectionHandler;
269	XML_EndCdataSectionHandler m_endCdataSectionHandler;
270	XML_DefaultHandler m_defaultHandler;
271	XML_UnparsedEntityDeclHandler m_unparsedEntityDeclHandler;
272	XML_NotationDeclHandler m_notationDeclHandler;
273	XML_StartNamespaceDeclHandler m_startNamespaceDeclHandler;
274	XML_EndNamespaceDeclHandler m_endNamespaceDeclHandler;
275	XML_NotStandaloneHandler m_notStandaloneHandler;
276	XML_ExternalEntityRefHandler m_externalEntityRefHandler;
277	void *m_externalEntityRefHandlerArg;
278	XML_UnknownEncodingHandler m_unknownEncodingHandler;
279	const ENCODING *m_encoding;
280	INIT_ENCODING m_initEncoding;
281	const XML_Char *m_protocolEncodingName;
282	int m_ns;
283	void *m_unknownEncodingMem;
284	void *m_unknownEncodingData;
285	void *m_unknownEncodingHandlerData;
286	void (m_unknownEncodingRelease)(void );
287	PROLOG_STATE m_prologState;
288	Processor *m_processor;
289	enum XML_Error m_errorCode;
290	const char *m_eventPtr;
291	const char *m_eventEndPtr;
292	const char *m_positionPtr;
293	OPEN_INTERNAL_ENTITY *m_openInternalEntities;
294	int m_defaultExpandInternalEntities;
295	int m_tagLevel;
296	ENTITY *m_declEntity;
297	const XML_Char *m_declNotationName;
298	const XML_Char *m_declNotationPublicId;
299	ELEMENT_TYPE *m_declElementType;
300	ATTRIBUTE_ID *m_declAttributeId;
301	char m_declAttributeIsCdata;
302	DTD m_dtd;
303	TAG *m_tagStack;
304	TAG *m_freeTagList;
305	BINDING *m_inheritedBindings;
306	BINDING *m_freeBindingList;
307	int m_attsSize;
308	int m_nSpecifiedAtts;
309	ATTRIBUTE *m_atts;
310	POSITION m_position;
311	STRING_POOL m_tempPool;
312	STRING_POOL m_temp2Pool;
313	char *m_groupConnector;
314	unsigned m_groupSize;
315	int m_hadExternalDoctype;
316	XML_Char m_namespaceSeparator;
317	} Parser;
318
319	#define userData (((Parser *)parser)->m_userData)
320	#define handlerArg (((Parser *)parser)->m_handlerArg)
321	#define startElementHandler (((Parser *)parser)->m_startElementHandler)
322	#define endElementHandler (((Parser *)parser)->m_endElementHandler)
323	#define characterDataHandler (((Parser *)parser)->m_characterDataHandler)
324	#define processingInstructionHandler (((Parser *)parser)->m_processingInstructionHandler)
325	#define commentHandler (((Parser *)parser)->m_commentHandler)
326	#define startCdataSectionHandler (((Parser *)parser)->m_startCdataSectionHandler)
327	#define endCdataSectionHandler (((Parser *)parser)->m_endCdataSectionHandler)
328	#define defaultHandler (((Parser *)parser)->m_defaultHandler)
329	#define unparsedEntityDeclHandler (((Parser *)parser)->m_unparsedEntityDeclHandler)
330	#define notationDeclHandler (((Parser *)parser)->m_notationDeclHandler)
331	#define startNamespaceDeclHandler (((Parser *)parser)->m_startNamespaceDeclHandler)
332	#define endNamespaceDeclHandler (((Parser *)parser)->m_endNamespaceDeclHandler)
333	#define notStandaloneHandler (((Parser *)parser)->m_notStandaloneHandler)
334	#define externalEntityRefHandler (((Parser *)parser)->m_externalEntityRefHandler)
335	#define externalEntityRefHandlerArg (((Parser *)parser)->m_externalEntityRefHandlerArg)
336	#define unknownEncodingHandler (((Parser *)parser)->m_unknownEncodingHandler)
337	#define encoding (((Parser *)parser)->m_encoding)
338	#define initEncoding (((Parser *)parser)->m_initEncoding)
339	#define unknownEncodingMem (((Parser *)parser)->m_unknownEncodingMem)
340	#define unknownEncodingData (((Parser *)parser)->m_unknownEncodingData)
341	#define unknownEncodingHandlerData \
342	(((Parser *)parser)->m_unknownEncodingHandlerData)
343	#define unknownEncodingRelease (((Parser *)parser)->m_unknownEncodingRelease)
344	#define protocolEncodingName (((Parser *)parser)->m_protocolEncodingName)
345	#define ns (((Parser *)parser)->m_ns)
346	#define prologState (((Parser *)parser)->m_prologState)
347	#define processor (((Parser *)parser)->m_processor)
348	#define errorCode (((Parser *)parser)->m_errorCode)
349	#define eventPtr (((Parser *)parser)->m_eventPtr)
350	#define eventEndPtr (((Parser *)parser)->m_eventEndPtr)
351	#define positionPtr (((Parser *)parser)->m_positionPtr)
352	#define position (((Parser *)parser)->m_position)
353	#define openInternalEntities (((Parser *)parser)->m_openInternalEntities)
354	#define defaultExpandInternalEntities (((Parser *)parser)->m_defaultExpandInternalEntities)
355	#define tagLevel (((Parser *)parser)->m_tagLevel)
356	#define buffer (((Parser *)parser)->m_buffer)
357	#define bufferPtr (((Parser *)parser)->m_bufferPtr)
358	#define bufferEnd (((Parser *)parser)->m_bufferEnd)
359	#define parseEndByteIndex (((Parser *)parser)->m_parseEndByteIndex)
360	#define parseEndPtr (((Parser *)parser)->m_parseEndPtr)
361	#define bufferLim (((Parser *)parser)->m_bufferLim)
362	#define dataBuf (((Parser *)parser)->m_dataBuf)
363	#define dataBufEnd (((Parser *)parser)->m_dataBufEnd)
364	#define dtd (((Parser *)parser)->m_dtd)
365	#define declEntity (((Parser *)parser)->m_declEntity)
366	#define declNotationName (((Parser *)parser)->m_declNotationName)
367	#define declNotationPublicId (((Parser *)parser)->m_declNotationPublicId)
368	#define declElementType (((Parser *)parser)->m_declElementType)
369	#define declAttributeId (((Parser *)parser)->m_declAttributeId)
370	#define declAttributeIsCdata (((Parser *)parser)->m_declAttributeIsCdata)
371	#define freeTagList (((Parser *)parser)->m_freeTagList)
372	#define freeBindingList (((Parser *)parser)->m_freeBindingList)
373	#define inheritedBindings (((Parser *)parser)->m_inheritedBindings)
374	#define tagStack (((Parser *)parser)->m_tagStack)
375	#define atts (((Parser *)parser)->m_atts)
376	#define attsSize (((Parser *)parser)->m_attsSize)
377	#define nSpecifiedAtts (((Parser *)parser)->m_nSpecifiedAtts)
378	#define tempPool (((Parser *)parser)->m_tempPool)
379	#define temp2Pool (((Parser *)parser)->m_temp2Pool)
380	#define groupConnector (((Parser *)parser)->m_groupConnector)
381	#define groupSize (((Parser *)parser)->m_groupSize)
382	#define hadExternalDoctype (((Parser *)parser)->m_hadExternalDoctype)
383	#define namespaceSeparator (((Parser *)parser)->m_namespaceSeparator)
384
385	#ifdef _MSC_VER
386	#ifdef _DEBUG
387	Parser *asParser(XML_Parser parser)
388	{
389	return parser;
390	}
391	#endif
392	#endif
393
394	XML_Parser XML_ParserCreate(const XML_Char *encodingName)
395	{
396	XML_Parser parser = malloc(sizeof(Parser));
397	if (!parser)
398	return parser;
399	processor = prologInitProcessor;
400	XmlPrologStateInit(&prologState);
401	userData = 0;
402	handlerArg = 0;
403	startElementHandler = 0;
404	endElementHandler = 0;
405	characterDataHandler = 0;
406	processingInstructionHandler = 0;
407	commentHandler = 0;
408	startCdataSectionHandler = 0;
409	endCdataSectionHandler = 0;
410	defaultHandler = 0;
411	unparsedEntityDeclHandler = 0;
412	notationDeclHandler = 0;
413	startNamespaceDeclHandler = 0;
414	endNamespaceDeclHandler = 0;
415	notStandaloneHandler = 0;
416	externalEntityRefHandler = 0;
417	externalEntityRefHandlerArg = parser;
418	unknownEncodingHandler = 0;
419	buffer = 0;
420	bufferPtr = 0;
421	bufferEnd = 0;
422	parseEndByteIndex = 0;
423	parseEndPtr = 0;
424	bufferLim = 0;
425	declElementType = 0;
426	declAttributeId = 0;
427	declEntity = 0;
428	declNotationName = 0;
429	declNotationPublicId = 0;
430	memset(&position, 0, sizeof(POSITION));
431	errorCode = XML_ERROR_NONE;
432	eventPtr = 0;
433	eventEndPtr = 0;
434	positionPtr = 0;
435	openInternalEntities = 0;
436	tagLevel = 0;
437	tagStack = 0;
438	freeTagList = 0;
439	freeBindingList = 0;
440	inheritedBindings = 0;
441	attsSize = INIT_ATTS_SIZE;
442	atts = malloc(attsSize * sizeof(ATTRIBUTE));
443	nSpecifiedAtts = 0;
444	dataBuf = malloc(INIT_DATA_BUF_SIZE * sizeof(XML_Char));
445	groupSize = 0;
446	groupConnector = 0;
447	hadExternalDoctype = 0;
448	unknownEncodingMem = 0;
449	unknownEncodingRelease = 0;
450	unknownEncodingData = 0;
451	unknownEncodingHandlerData = 0;
452	namespaceSeparator = '!';
453	ns = 0;
454	poolInit(&tempPool);
455	poolInit(&temp2Pool);
456	protocolEncodingName = encodingName ? poolCopyString(&tempPool, encodingName) : 0;
457	if (!dtdInit(&dtd) \|\| !atts \|\| !dataBuf
458	\|\| (encodingName && !protocolEncodingName)) {
459	XML_ParserFree(parser);
460	return 0;
461	}
462	dataBufEnd = dataBuf + INIT_DATA_BUF_SIZE;
463	XmlInitEncoding(&initEncoding, &encoding, 0);
464	return parser;
465	}
466
467	static
468	void destroyBindings(BINDING *bindings)
469	{
470	for (;;) {
471	BINDING *b = bindings;
472	if (!b)
473	break;
474	bindings = b->nextTagBinding;
475	g_free(b->uri);
476	g_free(b);
477	}
478	}
479
480	void XML_ParserFree(XML_Parser parser)
481	{
482	for (;;) {
483	TAG *p;
484	if (tagStack == 0) {
485	if (freeTagList == 0)
486	break;
487	tagStack = freeTagList;
488	freeTagList = 0;
489	}
490	p = tagStack;
491	tagStack = tagStack->parent;
492	g_free(p->buf);
493	destroyBindings(p->bindings);
494	g_free(p);
495	}
496	destroyBindings(freeBindingList);
497	destroyBindings(inheritedBindings);
498	poolDestroy(&tempPool);
499	poolDestroy(&temp2Pool);
500	dtdDestroy(&dtd);
501	g_free((void *)atts);
502	g_free(groupConnector);
503	g_free(buffer);
504	g_free(dataBuf);
505	g_free(unknownEncodingMem);
506	if (unknownEncodingRelease)
507	unknownEncodingRelease(unknownEncodingData);
508	g_free(parser);
509	}
510
511	void XML_SetUserData(XML_Parser parser, void *p)
512	{
513	if (handlerArg == userData)
514	handlerArg = userData = p;
515	else
516	userData = p;
517	}
518
519	void XML_SetElementHandler(XML_Parser parser,
520	XML_StartElementHandler start,
521	XML_EndElementHandler end)
522	{
523	startElementHandler = start;
524	endElementHandler = end;
525	}
526
527	void XML_SetCharacterDataHandler(XML_Parser parser,
528	XML_CharacterDataHandler handler)
529	{
530	characterDataHandler = handler;
531	}
532
533	int XML_Parse(XML_Parser parser, const char *s, int len, int isFinal)
534	{
535	if (len == 0) {
536	if (!isFinal)
537	return 1;
538	positionPtr = bufferPtr;
539	errorCode = processor(parser, bufferPtr, parseEndPtr = bufferEnd, 0);
540	if (errorCode == XML_ERROR_NONE)
541	return 1;
542	eventEndPtr = eventPtr;
543	return 0;
544	}
545	else if (bufferPtr == bufferEnd) {
546	const char *end;
547	int nLeftOver;
548	parseEndByteIndex += len;
549	positionPtr = s;
550	if (isFinal) {
551	errorCode = processor(parser, s, parseEndPtr = s + len, 0);
552	if (errorCode == XML_ERROR_NONE)
553	return 1;
554	eventEndPtr = eventPtr;
555	return 0;
556	}
557	errorCode = processor(parser, s, parseEndPtr = s + len, &end);
558	if (errorCode != XML_ERROR_NONE) {
559	eventEndPtr = eventPtr;
560	return 0;
561	}
562	XmlUpdatePosition(encoding, positionPtr, end, &position);
563	nLeftOver = s + len - end;
564	if (nLeftOver) {
565	if (buffer == 0 \|\| nLeftOver > bufferLim - buffer) {
566	/* FIXME avoid integer overflow */
567	buffer = buffer == 0 ? malloc(len * 2) : realloc(buffer, len * 2);
568	if (!buffer) {
569	errorCode = XML_ERROR_NO_MEMORY;
570	eventPtr = eventEndPtr = 0;
571	return 0;
572	}
573	bufferLim = buffer + len * 2;
574	}
575	memcpy(buffer, end, nLeftOver);
576	bufferPtr = buffer;
577	bufferEnd = buffer + nLeftOver;
578	}
579	return 1;
580	}
581	else {
582	memcpy(XML_GetBuffer(parser, len), s, len);
583	return XML_ParseBuffer(parser, len, isFinal);
584	}
585	}
586
587	static int XML_ParseBuffer(XML_Parser parser, int len, int isFinal)
588	{
589	const char *start = bufferPtr;
590	positionPtr = start;
591	bufferEnd += len;
592	parseEndByteIndex += len;
593	errorCode = processor(parser, start, parseEndPtr = bufferEnd,
594	isFinal ? (const char **)0 : &bufferPtr);
595	if (errorCode == XML_ERROR_NONE) {
596	if (!isFinal)
597	XmlUpdatePosition(encoding, positionPtr, bufferPtr, &position);
598	return 1;
599	}
600	else {
601	eventEndPtr = eventPtr;
602	return 0;
603	}
604	}
605
606	static void *XML_GetBuffer(XML_Parser parser, int len)
607	{
608	if (len > bufferLim - bufferEnd) {
609	/* FIXME avoid integer overflow */
610	int neededSize = len + (bufferEnd - bufferPtr);
611	if (neededSize <= bufferLim - buffer) {
612	memmove(buffer, bufferPtr, bufferEnd - bufferPtr);
613	bufferEnd = buffer + (bufferEnd - bufferPtr);
614	bufferPtr = buffer;
615	}
616	else {
617	char *newBuf;
618	int bufferSize = bufferLim - bufferPtr;
619	if (bufferSize == 0)
620	bufferSize = INIT_BUFFER_SIZE;
621	do {
622	bufferSize *= 2;
623	} while (bufferSize < neededSize);
624	newBuf = malloc(bufferSize);
625	if (newBuf == 0) {
626	errorCode = XML_ERROR_NO_MEMORY;
627	return 0;
628	}
629	bufferLim = newBuf + bufferSize;
630	if (bufferPtr) {
631	memcpy(newBuf, bufferPtr, bufferEnd - bufferPtr);
632	g_free(buffer);
633	}
634	bufferEnd = newBuf + (bufferEnd - bufferPtr);
635	bufferPtr = buffer = newBuf;
636	}
637	}
638	return bufferEnd;
639	}
640
641	static
642	enum XML_Error contentProcessor(XML_Parser parser,
643	const char *start,
644	const char *end,
645	const char **endPtr)
646	{
647	return doContent(parser, 0, encoding, start, end, endPtr);
648	}
649
650	static enum XML_Error
651	doContent(XML_Parser parser,
652	int startTagLevel,
653	const ENCODING *enc,
654	const char *s,
655	const char *end,
656	const char **nextPtr)
657	{
658	const ENCODING *internalEnc = ns ? XmlGetInternalEncodingNS() : XmlGetInternalEncoding();
659	const char **eventPP;
660	const char **eventEndPP;
661	if (enc == encoding) {
662	eventPP = &eventPtr;
663	eventEndPP = &eventEndPtr;
664	}
665	else {
666	eventPP = &(openInternalEntities->internalEventPtr);
667	eventEndPP = &(openInternalEntities->internalEventEndPtr);
668	}
669	*eventPP = s;
670	for (;;) {
671	const char next = s; / XmlContentTok doesn't always set the last arg */
672	int tok = XmlContentTok(enc, s, end, &next);
673	*eventEndPP = next;
674	switch (tok) {
675	case XML_TOK_TRAILING_CR:
676	if (nextPtr) {
677	*nextPtr = s;
678	return XML_ERROR_NONE;
679	}
680	*eventEndPP = end;
681	if (characterDataHandler) {
682	XML_Char c = 0xA;
683	characterDataHandler(handlerArg, &c, 1);
684	}
685	else if (defaultHandler)
686	reportDefault(parser, enc, s, end);
687	if (startTagLevel == 0)
688	return XML_ERROR_NO_ELEMENTS;
689	if (tagLevel != startTagLevel)
690	return XML_ERROR_ASYNC_ENTITY;
691	return XML_ERROR_NONE;
692	case XML_TOK_NONE:
693	if (nextPtr) {
694	*nextPtr = s;
695	return XML_ERROR_NONE;
696	}
697	if (startTagLevel > 0) {
698	if (tagLevel != startTagLevel)
699	return XML_ERROR_ASYNC_ENTITY;
700	return XML_ERROR_NONE;
701	}
702	return XML_ERROR_NO_ELEMENTS;
703	case XML_TOK_INVALID:
704	*eventPP = next;
705	return XML_ERROR_INVALID_TOKEN;
706	case XML_TOK_PARTIAL:
707	if (nextPtr) {
708	*nextPtr = s;
709	return XML_ERROR_NONE;
710	}
711	return XML_ERROR_UNCLOSED_TOKEN;
712	case XML_TOK_PARTIAL_CHAR:
713	if (nextPtr) {
714	*nextPtr = s;
715	return XML_ERROR_NONE;
716	}
717	return XML_ERROR_PARTIAL_CHAR;
718	case XML_TOK_ENTITY_REF:
719	{
720	const XML_Char *name;
721	ENTITY *entity;
722	XML_Char ch = XmlPredefinedEntityName(enc,
723	s + enc->minBytesPerChar,
724	next - enc->minBytesPerChar);
725	if (ch) {
726	if (characterDataHandler)
727	characterDataHandler(handlerArg, &ch, 1);
728	else if (defaultHandler)
729	reportDefault(parser, enc, s, next);
730	break;
731	}
732	name = poolStoreString(&dtd.pool, enc,
733	s + enc->minBytesPerChar,
734	next - enc->minBytesPerChar);
735	if (!name)
736	return XML_ERROR_NO_MEMORY;
737	entity = (ENTITY *)lookup(&dtd.generalEntities, name, 0);
738	poolDiscard(&dtd.pool);
739	if (!entity) {
740	if (dtd.complete \|\| dtd.standalone)
741	return XML_ERROR_UNDEFINED_ENTITY;
742	if (defaultHandler)
743	reportDefault(parser, enc, s, next);
744	break;
745	}
746	if (entity->open)
747	return XML_ERROR_RECURSIVE_ENTITY_REF;
748	if (entity->notation)
749	return XML_ERROR_BINARY_ENTITY_REF;
750	if (entity) {
751	if (entity->textPtr) {
752	enum XML_Error result;
753	OPEN_INTERNAL_ENTITY openEntity;
754	if (defaultHandler && !defaultExpandInternalEntities) {
755	reportDefault(parser, enc, s, next);
756	break;
757	}
758	entity->open = 1;
759	openEntity.next = openInternalEntities;
760	openInternalEntities = &openEntity;
761	openEntity.entity = entity;
762	openEntity.internalEventPtr = 0;
763	openEntity.internalEventEndPtr = 0;
764	result = doContent(parser,
765	tagLevel,
766	internalEnc,
767	(char *)entity->textPtr,
768	(char *)(entity->textPtr + entity->textLen),
769	0);
770	entity->open = 0;
771	openInternalEntities = openEntity.next;
772	if (result)
773	return result;
774	}
775	else if (externalEntityRefHandler) {
776	const XML_Char *context;
777	entity->open = 1;
778	context = getContext(parser);
779	entity->open = 0;
780	if (!context)
781	return XML_ERROR_NO_MEMORY;
782	if (!externalEntityRefHandler(externalEntityRefHandlerArg,
783	context,
784	dtd.base,
785	entity->systemId,
786	entity->publicId))
787	return XML_ERROR_EXTERNAL_ENTITY_HANDLING;
788	poolDiscard(&tempPool);
789	}
790	else if (defaultHandler)
791	reportDefault(parser, enc, s, next);
792	}
793	break;
794	}
795	case XML_TOK_START_TAG_WITH_ATTS:
796	if (!startElementHandler) {
797	enum XML_Error result = storeAtts(parser, enc, s, 0, 0);
798	if (result)
799	return result;
800	}
801	/* fall through */
802	case XML_TOK_START_TAG_NO_ATTS:
803	{
804	TAG *tag;
805	if (freeTagList) {
806	tag = freeTagList;
807	freeTagList = freeTagList->parent;
808	}
809	else {
810	tag = malloc(sizeof(TAG));
811	if (!tag)
812	return XML_ERROR_NO_MEMORY;
813	tag->buf = malloc(INIT_TAG_BUF_SIZE);
814	if (!tag->buf)
815	return XML_ERROR_NO_MEMORY;
816	tag->bufEnd = tag->buf + INIT_TAG_BUF_SIZE;
817	}
818	tag->bindings = 0;
819	tag->parent = tagStack;
820	tagStack = tag;
821	tag->name.localPart = 0;
822	tag->rawName = s + enc->minBytesPerChar;
823	tag->rawNameLength = XmlNameLength(enc, tag->rawName);
824	if (nextPtr) {
825	/* Need to guarantee that:
826	tag->buf + ROUND_UP(tag->rawNameLength, sizeof(XML_Char)) <= tag->bufEnd - sizeof(XML_Char) */
827	if (tag->rawNameLength + (int)(sizeof(XML_Char) - 1) + (int)sizeof(XML_Char) > tag->bufEnd - tag->buf) {
828	int bufSize = tag->rawNameLength * 4;
829	bufSize = ROUND_UP(bufSize, sizeof(XML_Char));
830	tag->buf = realloc(tag->buf, bufSize);
831	if (!tag->buf)
832	return XML_ERROR_NO_MEMORY;
833	tag->bufEnd = tag->buf + bufSize;
834	}
835	memcpy(tag->buf, tag->rawName, tag->rawNameLength);
836	tag->rawName = tag->buf;
837	}
838	++tagLevel;
839	if (startElementHandler) {
840	enum XML_Error result;
841	XML_Char *toPtr;
842	for (;;) {
843	const char *rawNameEnd = tag->rawName + tag->rawNameLength;
844	const char *fromPtr = tag->rawName;
845	int bufSize;
846	if (nextPtr)
847	toPtr = (XML_Char *)(tag->buf + ROUND_UP(tag->rawNameLength, sizeof(XML_Char)));
848	else
849	toPtr = (XML_Char *)tag->buf;
850	tag->name.str = toPtr;
851	XmlConvert(enc,
852	&fromPtr, rawNameEnd,
853	(ICHAR *)&toPtr, (ICHAR )tag->bufEnd - 1);
854	if (fromPtr == rawNameEnd)
855	break;
856	bufSize = (tag->bufEnd - tag->buf) << 1;
857	tag->buf = realloc(tag->buf, bufSize);
858	if (!tag->buf)
859	return XML_ERROR_NO_MEMORY;
860	tag->bufEnd = tag->buf + bufSize;
861	if (nextPtr)
862	tag->rawName = tag->buf;
863	}
864	*toPtr = XML_T('\0');
865	result = storeAtts(parser, enc, s, &(tag->name), &(tag->bindings));
866	if (result)
867	return result;
868	startElementHandler(handlerArg, tag->name.str, (const XML_Char **)atts);
869	poolClear(&tempPool);
870	}
871	else {
872	tag->name.str = 0;
873	if (defaultHandler)
874	reportDefault(parser, enc, s, next);
875	}
876	break;
877	}
878	case XML_TOK_EMPTY_ELEMENT_WITH_ATTS:
879	if (!startElementHandler) {
880	enum XML_Error result = storeAtts(parser, enc, s, 0, 0);
881	if (result)
882	return result;
883	}
884	/* fall through */
885	case XML_TOK_EMPTY_ELEMENT_NO_ATTS:
886	if (startElementHandler \|\| endElementHandler) {
887	const char *rawName = s + enc->minBytesPerChar;
888	enum XML_Error result;
889	BINDING *bindings = 0;
890	TAG_NAME name;
891	name.str = poolStoreString(&tempPool, enc, rawName,
892	rawName + XmlNameLength(enc, rawName));
893	if (!name.str)
894	return XML_ERROR_NO_MEMORY;
895	poolFinish(&tempPool);
896	result = storeAtts(parser, enc, s, &name, &bindings);
897	if (result)
898	return result;
899	poolFinish(&tempPool);
900	if (startElementHandler)
901	startElementHandler(handlerArg, name.str, (const XML_Char **)atts);
902	if (endElementHandler) {
903	if (startElementHandler)
904	eventPP = eventEndPP;
905	endElementHandler(handlerArg, name.str);
906	}
907	poolClear(&tempPool);
908	while (bindings) {
909	BINDING *b = bindings;
910	if (endNamespaceDeclHandler)
911	endNamespaceDeclHandler(handlerArg, b->prefix->name);
912	bindings = bindings->nextTagBinding;
913	b->nextTagBinding = freeBindingList;
914	freeBindingList = b;
915	b->prefix->binding = b->prevPrefixBinding;
916	}
917	}
918	else if (defaultHandler)
919	reportDefault(parser, enc, s, next);
920	if (tagLevel == 0)
921	return epilogProcessor(parser, next, end, nextPtr);
922	break;
923	case XML_TOK_END_TAG:
924	if (tagLevel == startTagLevel)
925	return XML_ERROR_ASYNC_ENTITY;
926	else {
927	int len;
928	const char *rawName;
929	TAG *tag = tagStack;
930	tagStack = tag->parent;
931	tag->parent = freeTagList;
932	freeTagList = tag;
933	rawName = s + enc->minBytesPerChar*2;
934	len = XmlNameLength(enc, rawName);
935	if (len != tag->rawNameLength
936	\|\| memcmp(tag->rawName, rawName, len) != 0) {
937	*eventPP = rawName;
938	return XML_ERROR_TAG_MISMATCH;
939	}
940	--tagLevel;
941	if (endElementHandler && tag->name.str) {
942	if (tag->name.localPart) {
943	XML_Char to = (XML_Char )tag->name.str + tag->name.uriLen;
944	const XML_Char *from = tag->name.localPart;
945	while ((to++ = from++) != 0)
946	;
947	}
948	endElementHandler(handlerArg, tag->name.str);
949	}
950	else if (defaultHandler)
951	reportDefault(parser, enc, s, next);
952	while (tag->bindings) {
953	BINDING *b = tag->bindings;
954	if (endNamespaceDeclHandler)
955	endNamespaceDeclHandler(handlerArg, b->prefix->name);
956	tag->bindings = tag->bindings->nextTagBinding;
957	b->nextTagBinding = freeBindingList;
958	freeBindingList = b;
959	b->prefix->binding = b->prevPrefixBinding;
960	}
961	if (tagLevel == 0)
962	return epilogProcessor(parser, next, end, nextPtr);
963	}
964	break;
965	case XML_TOK_CHAR_REF:
966	{
967	int n = XmlCharRefNumber(enc, s);
968	if (n < 0)
969	return XML_ERROR_BAD_CHAR_REF;
970	if (characterDataHandler) {
971	XML_Char buf[XML_ENCODE_MAX];
972	characterDataHandler(handlerArg, buf, XmlEncode(n, (ICHAR *)buf));
973	}
974	else if (defaultHandler)
975	reportDefault(parser, enc, s, next);
976	}
977	break;
978	case XML_TOK_XML_DECL:
979	return XML_ERROR_MISPLACED_XML_PI;
980	case XML_TOK_DATA_NEWLINE:
981	if (characterDataHandler) {
982	XML_Char c = 0xA;
983	characterDataHandler(handlerArg, &c, 1);
984	}
985	else if (defaultHandler)
986	reportDefault(parser, enc, s, next);
987	break;
988	case XML_TOK_CDATA_SECT_OPEN:
989	{
990	enum XML_Error result;
991	if (startCdataSectionHandler)
992	startCdataSectionHandler(handlerArg);
993	#if 0
994	/* Suppose you doing a transformation on a document that involves
995	changing only the character data. You set up a defaultHandler
996	and a characterDataHandler. The defaultHandler simply copies
997	characters through. The characterDataHandler does the transformation
998	and writes the characters out escaping them as necessary. This case
999	will fail to work if we leave out the following two lines (because &
1000	and < inside CDATA sections will be incorrectly escaped).
1001
1002	However, now we have a start/endCdataSectionHandler, so it seems
1003	easier to let the user deal with this. */
1004
1005	else if (characterDataHandler)
1006	characterDataHandler(handlerArg, dataBuf, 0);
1007	#endif
1008	else if (defaultHandler)
1009	reportDefault(parser, enc, s, next);
1010	result = doCdataSection(parser, enc, &next, end, nextPtr);
1011	if (!next) {
1012	processor = cdataSectionProcessor;
1013	return result;
1014	}
1015	}
1016	break;
1017	case XML_TOK_TRAILING_RSQB:
1018	if (nextPtr) {
1019	*nextPtr = s;
1020	return XML_ERROR_NONE;
1021	}
1022	if (characterDataHandler) {
1023	if (MUST_CONVERT(enc, s)) {
1024	ICHAR dataPtr = (ICHAR )dataBuf;
1025	XmlConvert(enc, &s, end, &dataPtr, (ICHAR *)dataBufEnd);
1026	characterDataHandler(handlerArg, dataBuf, dataPtr - (ICHAR *)dataBuf);
1027	}
1028	else
1029	characterDataHandler(handlerArg,
1030	(XML_Char *)s,
1031	(XML_Char )end - (XML_Char )s);
1032	}
1033	else if (defaultHandler)
1034	reportDefault(parser, enc, s, end);
1035	if (startTagLevel == 0) {
1036	*eventPP = end;
1037	return XML_ERROR_NO_ELEMENTS;
1038	}
1039	if (tagLevel != startTagLevel) {
1040	*eventPP = end;
1041	return XML_ERROR_ASYNC_ENTITY;
1042	}
1043	return XML_ERROR_NONE;
1044	case XML_TOK_DATA_CHARS:
1045	if (characterDataHandler) {
1046	if (MUST_CONVERT(enc, s)) {
1047	for (;;) {
1048	ICHAR dataPtr = (ICHAR )dataBuf;
1049	XmlConvert(enc, &s, next, &dataPtr, (ICHAR *)dataBufEnd);
1050	*eventEndPP = s;
1051	characterDataHandler(handlerArg, dataBuf, dataPtr - (ICHAR *)dataBuf);
1052	if (s == next)
1053	break;
1054	*eventPP = s;
1055	}
1056	}
1057	else
1058	characterDataHandler(handlerArg,
1059	(XML_Char *)s,
1060	(XML_Char )next - (XML_Char )s);
1061	}
1062	else if (defaultHandler)
1063	reportDefault(parser, enc, s, next);
1064	break;
1065	case XML_TOK_PI:
1066	if (!reportProcessingInstruction(parser, enc, s, next))
1067	return XML_ERROR_NO_MEMORY;
1068	break;
1069	case XML_TOK_COMMENT:
1070	if (!reportComment(parser, enc, s, next))
1071	return XML_ERROR_NO_MEMORY;
1072	break;
1073	default:
1074	if (defaultHandler)
1075	reportDefault(parser, enc, s, next);
1076	break;
1077	}
1078	*eventPP = s = next;
1079	}
1080	/* not reached */
1081	}
1082
1083	/* If tagNamePtr is non-null, build a real list of attributes,
1084	otherwise just check the attributes for well-formedness. */
1085
1086	static enum XML_Error storeAtts(XML_Parser parser, const ENCODING *enc,
1087	const char s, TAG_NAME tagNamePtr,
1088	BINDING **bindingsPtr)
1089	{
1090	ELEMENT_TYPE *elementType = 0;
1091	int nDefaultAtts = 0;
1092	const XML_Char **appAtts;
1093	int attIndex = 0;
1094	int i;
1095	int n;
1096	int nPrefixes = 0;
1097	BINDING *binding;
1098	const XML_Char *localPart;
1099
1100	if (tagNamePtr) {
1101	elementType = (ELEMENT_TYPE *)lookup(&dtd.elementTypes, tagNamePtr->str, 0);
1102	if (!elementType) {
1103	tagNamePtr->str = poolCopyString(&dtd.pool, tagNamePtr->str);
1104	if (!tagNamePtr->str)
1105	return XML_ERROR_NO_MEMORY;
1106	elementType = (ELEMENT_TYPE *)lookup(&dtd.elementTypes, tagNamePtr->str, sizeof(ELEMENT_TYPE));
1107	if (!elementType)
1108	return XML_ERROR_NO_MEMORY;
1109	if (ns && !setElementTypePrefix(parser, elementType))
1110	return XML_ERROR_NO_MEMORY;
1111	}
1112	nDefaultAtts = elementType->nDefaultAtts;
1113	}
1114	n = XmlGetAttributes(enc, s, attsSize, atts);
1115	if (n + nDefaultAtts > attsSize) {
1116	int oldAttsSize = attsSize;
1117	attsSize = n + nDefaultAtts + INIT_ATTS_SIZE;
1118	atts = realloc((void )atts, attsSize sizeof(ATTRIBUTE));
1119	if (!atts)
1120	return XML_ERROR_NO_MEMORY;
1121	if (n > oldAttsSize)
1122	XmlGetAttributes(enc, s, n, atts);
1123	}
1124	appAtts = (const XML_Char **)atts;
1125	for (i = 0; i < n; i++) {
1126	ATTRIBUTE_ID *attId = getAttributeId(parser, enc, atts[i].name,
1127	atts[i].name
1128	+ XmlNameLength(enc, atts[i].name));
1129	if (!attId)
1130	return XML_ERROR_NO_MEMORY;
1131	if ((attId->name)[-1]) {
1132	if (enc == encoding)
1133	eventPtr = atts[i].name;
1134	return XML_ERROR_DUPLICATE_ATTRIBUTE;
1135	}
1136	(attId->name)[-1] = 1;
1137	appAtts[attIndex++] = attId->name;
1138	if (!atts[i].normalized) {
1139	enum XML_Error result;
1140	int isCdata = 1;
1141
1142	if (attId->maybeTokenized) {
1143	int j;
1144	for (j = 0; j < nDefaultAtts; j++) {
1145	if (attId == elementType->defaultAtts[j].id) {
1146	isCdata = elementType->defaultAtts[j].isCdata;
1147	break;
1148	}
1149	}
1150	}
1151
1152	result = storeAttributeValue(parser, enc, isCdata,
1153	atts[i].valuePtr, atts[i].valueEnd,
1154	&tempPool);
1155	if (result)
1156	return result;
1157	if (tagNamePtr) {
1158	appAtts[attIndex] = poolStart(&tempPool);
1159	poolFinish(&tempPool);
1160	}
1161	else
1162	poolDiscard(&tempPool);
1163	}
1164	else if (tagNamePtr) {
1165	appAtts[attIndex] = poolStoreString(&tempPool, enc, atts[i].valuePtr, atts[i].valueEnd);
1166	if (appAtts[attIndex] == 0)
1167	return XML_ERROR_NO_MEMORY;
1168	poolFinish(&tempPool);
1169	}
1170	if (attId->prefix && tagNamePtr) {
1171	if (attId->xmlns) {
1172	if (!addBinding(parser, attId->prefix, attId, appAtts[attIndex], bindingsPtr))
1173	return XML_ERROR_NO_MEMORY;
1174	--attIndex;
1175	}
1176	else {
1177	attIndex++;
1178	nPrefixes++;
1179	(attId->name)[-1] = 2;
1180	}
1181	}
1182	else
1183	attIndex++;
1184	}
1185	nSpecifiedAtts = attIndex;
1186	if (tagNamePtr) {
1187	int j;
1188	for (j = 0; j < nDefaultAtts; j++) {
1189	const DEFAULT_ATTRIBUTE *da = elementType->defaultAtts + j;
1190	if (!(da->id->name)[-1] && da->value) {
1191	if (da->id->prefix) {
1192	if (da->id->xmlns) {
1193	if (!addBinding(parser, da->id->prefix, da->id, da->value, bindingsPtr))
1194	return XML_ERROR_NO_MEMORY;
1195	}
1196	else {
1197	(da->id->name)[-1] = 2;
1198	nPrefixes++;
1199	appAtts[attIndex++] = da->id->name;
1200	appAtts[attIndex++] = da->value;
1201	}
1202	}
1203	else {
1204	(da->id->name)[-1] = 1;
1205	appAtts[attIndex++] = da->id->name;
1206	appAtts[attIndex++] = da->value;
1207	}
1208	}
1209	}
1210	appAtts[attIndex] = 0;
1211	}
1212	i = 0;
1213	if (nPrefixes) {
1214	for (; i < attIndex; i += 2) {
1215	if (appAtts[i][-1] == 2) {
1216	ATTRIBUTE_ID *id;
1217	((XML_Char *)(appAtts[i]))[-1] = 0;
1218	id = (ATTRIBUTE_ID *)lookup(&dtd.attributeIds, appAtts[i], 0);
1219	if (id->prefix->binding) {
1220	int j;
1221	const BINDING *b = id->prefix->binding;
1222	const XML_Char *s = appAtts[i];
1223	for (j = 0; j < b->uriLen; j++) {
1224	if (!poolAppendChar(&tempPool, b->uri[j]))
1225	return XML_ERROR_NO_MEMORY;
1226	}
1227	while (*s++ != ':')
1228	;
1229	do {
1230	if (!poolAppendChar(&tempPool, *s))
1231	return XML_ERROR_NO_MEMORY;
1232	} while (*s++);
1233	appAtts[i] = poolStart(&tempPool);
1234	poolFinish(&tempPool);
1235	}
1236	if (!--nPrefixes)
1237	break;
1238	}
1239	else
1240	((XML_Char *)(appAtts[i]))[-1] = 0;
1241	}
1242	}
1243	for (; i < attIndex; i += 2)
1244	((XML_Char *)(appAtts[i]))[-1] = 0;
1245	if (!tagNamePtr)
1246	return XML_ERROR_NONE;
1247	for (binding = *bindingsPtr; binding; binding = binding->nextTagBinding)
1248	binding->attId->name[-1] = 0;
1249	if (elementType->prefix) {
1250	binding = elementType->prefix->binding;
1251	if (!binding)
1252	return XML_ERROR_NONE;
1253	localPart = tagNamePtr->str;
1254	while (*localPart++ != XML_T(':'))
1255	;
1256	}
1257	else if (dtd.defaultPrefix.binding) {
1258	binding = dtd.defaultPrefix.binding;
1259	localPart = tagNamePtr->str;
1260	}
1261	else
1262	return XML_ERROR_NONE;
1263	tagNamePtr->localPart = localPart;
1264	tagNamePtr->uriLen = binding->uriLen;
1265	i = binding->uriLen;
1266	do {
1267	if (i == binding->uriAlloc) {
1268	binding->uri = realloc(binding->uri, binding->uriAlloc *= 2);
1269	if (!binding->uri)
1270	return XML_ERROR_NO_MEMORY;
1271	}
1272	binding->uri[i++] = *localPart;
1273	} while (*localPart++);
1274	tagNamePtr->str = binding->uri;
1275	return XML_ERROR_NONE;
1276	}
1277
1278	static
1279	int addBinding(XML_Parser parser, PREFIX prefix, const ATTRIBUTE_ID attId, const XML_Char uri, BINDING *bindingsPtr)
1280	{
1281	BINDING *b;
1282	int len;
1283	for (len = 0; uri[len]; len++)
1284	;
1285	if (namespaceSeparator)
1286	len++;
1287	if (freeBindingList) {
1288	b = freeBindingList;
1289	if (len > b->uriAlloc) {
1290	b->uri = realloc(b->uri, len + EXPAND_SPARE);
1291	if (!b->uri)
1292	return 0;
1293	b->uriAlloc = len + EXPAND_SPARE;
1294	}
1295	freeBindingList = b->nextTagBinding;
1296	}
1297	else {
1298	b = malloc(sizeof(BINDING));
1299	if (!b)
1300	return 0;
1301	b->uri = malloc(sizeof(XML_Char) * len + EXPAND_SPARE);
1302	if (!b->uri) {
1303	g_free(b);
1304	return 0;
1305	}
1306	b->uriAlloc = len;
1307	}
1308	b->uriLen = len;
1309	memcpy(b->uri, uri, len * sizeof(XML_Char));
1310	if (namespaceSeparator)
1311	b->uri[len - 1] = namespaceSeparator;
1312	b->prefix = prefix;
1313	b->attId = attId;
1314	b->prevPrefixBinding = prefix->binding;
1315	if (*uri == XML_T('\0') && prefix == &dtd.defaultPrefix)
1316	prefix->binding = 0;
1317	else
1318	prefix->binding = b;
1319	b->nextTagBinding = *bindingsPtr;
1320	*bindingsPtr = b;
1321	if (startNamespaceDeclHandler)
1322	startNamespaceDeclHandler(handlerArg, prefix->name,
1323	prefix->binding ? uri : 0);
1324	return 1;
1325	}
1326
1327	/* The idea here is to avoid using stack for each CDATA section when
1328	the whole file is parsed with one call. */
1329
1330	static
1331	enum XML_Error cdataSectionProcessor(XML_Parser parser,
1332	const char *start,
1333	const char *end,
1334	const char **endPtr)
1335	{
1336	enum XML_Error result = doCdataSection(parser, encoding, &start, end, endPtr);
1337	if (start) {
1338	processor = contentProcessor;
1339	return contentProcessor(parser, start, end, endPtr);
1340	}
1341	return result;
1342	}
1343
1344	/* startPtr gets set to non-null is the section is closed, and to null if
1345	the section is not yet closed. */
1346
1347	static
1348	enum XML_Error doCdataSection(XML_Parser parser,
1349	const ENCODING *enc,
1350	const char **startPtr,
1351	const char *end,
1352	const char **nextPtr)
1353	{
1354	const char s = startPtr;
1355	const char **eventPP;
1356	const char **eventEndPP;
1357	if (enc == encoding) {
1358	eventPP = &eventPtr;
1359	*eventPP = s;
1360	eventEndPP = &eventEndPtr;
1361	}
1362	else {
1363	eventPP = &(openInternalEntities->internalEventPtr);
1364	eventEndPP = &(openInternalEntities->internalEventEndPtr);
1365	}
1366	*eventPP = s;
1367	*startPtr = 0;
1368	for (;;) {
1369	const char *next;
1370	int tok = XmlCdataSectionTok(enc, s, end, &next);
1371	*eventEndPP = next;
1372	switch (tok) {
1373	case XML_TOK_CDATA_SECT_CLOSE:
1374	if (endCdataSectionHandler)
1375	endCdataSectionHandler(handlerArg);
1376	#if 0
1377	/* see comment under XML_TOK_CDATA_SECT_OPEN */
1378	else if (characterDataHandler)
1379	characterDataHandler(handlerArg, dataBuf, 0);
1380	#endif
1381	else if (defaultHandler)
1382	reportDefault(parser, enc, s, next);
1383	*startPtr = next;
1384	return XML_ERROR_NONE;
1385	case XML_TOK_DATA_NEWLINE:
1386	if (characterDataHandler) {
1387	XML_Char c = 0xA;
1388	characterDataHandler(handlerArg, &c, 1);
1389	}
1390	else if (defaultHandler)
1391	reportDefault(parser, enc, s, next);
1392	break;
1393	case XML_TOK_DATA_CHARS:
1394	if (characterDataHandler) {
1395	if (MUST_CONVERT(enc, s)) {
1396	for (;;) {
1397	ICHAR dataPtr = (ICHAR )dataBuf;
1398	XmlConvert(enc, &s, next, &dataPtr, (ICHAR *)dataBufEnd);
1399	*eventEndPP = next;
1400	characterDataHandler(handlerArg, dataBuf, dataPtr - (ICHAR *)dataBuf);
1401	if (s == next)
1402	break;
1403	*eventPP = s;
1404	}
1405	}
1406	else
1407	characterDataHandler(handlerArg,
1408	(XML_Char *)s,
1409	(XML_Char )next - (XML_Char )s);
1410	}
1411	else if (defaultHandler)
1412	reportDefault(parser, enc, s, next);
1413	break;
1414	case XML_TOK_INVALID:
1415	*eventPP = next;
1416	return XML_ERROR_INVALID_TOKEN;
1417	case XML_TOK_PARTIAL_CHAR:
1418	if (nextPtr) {
1419	*nextPtr = s;
1420	return XML_ERROR_NONE;
1421	}
1422	return XML_ERROR_PARTIAL_CHAR;
1423	case XML_TOK_PARTIAL:
1424	case XML_TOK_NONE:
1425	if (nextPtr) {
1426	*nextPtr = s;
1427	return XML_ERROR_NONE;
1428	}
1429	return XML_ERROR_UNCLOSED_CDATA_SECTION;
1430	default:
1431	abort();
1432	}
1433	*eventPP = s = next;
1434	}
1435	/* not reached */
1436	}
1437
1438	static enum XML_Error
1439	initializeEncoding(XML_Parser parser)
1440	{
1441	const char *s;
1442	#ifdef XML_UNICODE
1443	char encodingBuf[128];
1444	if (!protocolEncodingName)
1445	s = 0;
1446	else {
1447	int i;
1448	for (i = 0; protocolEncodingName[i]; i++) {
1449	if (i == sizeof(encodingBuf) - 1
1450	\|\| protocolEncodingName[i] >= 0x80
1451	\|\| protocolEncodingName[i] < 0) {
1452	encodingBuf[0] = '\0';
1453	break;
1454	}
1455	encodingBuf[i] = (char)protocolEncodingName[i];
1456	}
1457	encodingBuf[i] = '\0';
1458	s = encodingBuf;
1459	}
1460	#else
1461	s = protocolEncodingName;
1462	#endif
1463	if ((ns ? XmlInitEncodingNS : XmlInitEncoding)(&initEncoding, &encoding, s))
1464	return XML_ERROR_NONE;
1465	return handleUnknownEncoding(parser, protocolEncodingName);
1466	}
1467
1468	static enum XML_Error
1469	processXmlDecl(XML_Parser parser, int isGeneralTextEntity,
1470	const char s, const char next)
1471	{
1472	const char *encodingName = 0;
1473	const ENCODING *newEncoding = 0;
1474	const char *version;
1475	int standalone = -1;
1476	if (!(ns
1477	? XmlParseXmlDeclNS
1478	: XmlParseXmlDecl)(isGeneralTextEntity,
1479	encoding,
1480	s,
1481	next,
1482	&eventPtr,
1483	&version,
1484	&encodingName,
1485	&newEncoding,
1486	&standalone))
1487	return XML_ERROR_SYNTAX;
1488	if (!isGeneralTextEntity && standalone == 1)
1489	dtd.standalone = 1;
1490	if (defaultHandler)
1491	reportDefault(parser, encoding, s, next);
1492	if (!protocolEncodingName) {
1493	if (newEncoding) {
1494	if (newEncoding->minBytesPerChar != encoding->minBytesPerChar) {
1495	eventPtr = encodingName;
1496	return XML_ERROR_INCORRECT_ENCODING;
1497	}
1498	encoding = newEncoding;
1499	}
1500	else if (encodingName) {
1501	enum XML_Error result;
1502	const XML_Char *s = poolStoreString(&tempPool,
1503	encoding,
1504	encodingName,
1505	encodingName
1506	+ XmlNameLength(encoding, encodingName));
1507	if (!s)
1508	return XML_ERROR_NO_MEMORY;
1509	result = handleUnknownEncoding(parser, s);
1510	poolDiscard(&tempPool);
1511	if (result == XML_ERROR_UNKNOWN_ENCODING)
1512	eventPtr = encodingName;
1513	return result;
1514	}
1515	}
1516	return XML_ERROR_NONE;
1517	}
1518
1519	static enum XML_Error
1520	handleUnknownEncoding(XML_Parser parser, const XML_Char *encodingName)
1521	{
1522	if (unknownEncodingHandler) {
1523	XML_Encoding info;
1524	int i;
1525	for (i = 0; i < 256; i++)
1526	info.map[i] = -1;
1527	info.convert = 0;
1528	info.data = 0;
1529	info.release = 0;
1530	if (unknownEncodingHandler(unknownEncodingHandlerData, encodingName, &info)) {
1531	ENCODING *enc;
1532	unknownEncodingMem = malloc(XmlSizeOfUnknownEncoding());
1533	if (!unknownEncodingMem) {
1534	if (info.release)
1535	info.release(info.data);
1536	return XML_ERROR_NO_MEMORY;
1537	}
1538	enc = (ns
1539	? XmlInitUnknownEncodingNS
1540	: XmlInitUnknownEncoding)(unknownEncodingMem,
1541	info.map,
1542	info.convert,
1543	info.data);
1544	if (enc) {
1545	unknownEncodingData = info.data;
1546	unknownEncodingRelease = info.release;
1547	encoding = enc;
1548	return XML_ERROR_NONE;
1549	}
1550	}
1551	if (info.release)
1552	info.release(info.data);
1553	}
1554	return XML_ERROR_UNKNOWN_ENCODING;
1555	}
1556
1557	static enum XML_Error
1558	prologInitProcessor(XML_Parser parser,
1559	const char *s,
1560	const char *end,
1561	const char **nextPtr)
1562	{
1563	enum XML_Error result = initializeEncoding(parser);
1564	if (result != XML_ERROR_NONE)
1565	return result;
1566	processor = prologProcessor;
1567	return prologProcessor(parser, s, end, nextPtr);
1568	}
1569
1570	static enum XML_Error
1571	prologProcessor(XML_Parser parser,
1572	const char *s,
1573	const char *end,
1574	const char **nextPtr)
1575	{
1576	for (;;) {
1577	const char *next;
1578	int tok = XmlPrologTok(encoding, s, end, &next);
1579	if (tok <= 0) {
1580	if (nextPtr != 0 && tok != XML_TOK_INVALID) {
1581	*nextPtr = s;
1582	return XML_ERROR_NONE;
1583	}
1584	switch (tok) {
1585	case XML_TOK_INVALID:
1586	eventPtr = next;
1587	return XML_ERROR_INVALID_TOKEN;
1588	case XML_TOK_NONE:
1589	return XML_ERROR_NO_ELEMENTS;
1590	case XML_TOK_PARTIAL:
1591	return XML_ERROR_UNCLOSED_TOKEN;
1592	case XML_TOK_PARTIAL_CHAR:
1593	return XML_ERROR_PARTIAL_CHAR;
1594	case XML_TOK_TRAILING_CR:
1595	eventPtr = s + encoding->minBytesPerChar;
1596	return XML_ERROR_NO_ELEMENTS;
1597	default:
1598	abort();
1599	}
1600	}
1601	switch (XmlTokenRole(&prologState, tok, s, next, encoding)) {
1602	case XML_ROLE_XML_DECL:
1603	{
1604	enum XML_Error result = processXmlDecl(parser, 0, s, next);
1605	if (result != XML_ERROR_NONE)
1606	return result;
1607	}
1608	break;
1609	case XML_ROLE_DOCTYPE_SYSTEM_ID:
1610	if (!dtd.standalone
1611	&& notStandaloneHandler
1612	&& !notStandaloneHandler(handlerArg))
1613	return XML_ERROR_NOT_STANDALONE;
1614	hadExternalDoctype = 1;
1615	break;
1616	case XML_ROLE_DOCTYPE_PUBLIC_ID:
1617	case XML_ROLE_ENTITY_PUBLIC_ID:
1618	if (!XmlIsPublicId(encoding, s, next, &eventPtr))
1619	return XML_ERROR_SYNTAX;
1620	if (declEntity) {
1621	XML_Char *tem = poolStoreString(&dtd.pool,
1622	encoding,
1623	s + encoding->minBytesPerChar,
1624	next - encoding->minBytesPerChar);
1625	if (!tem)
1626	return XML_ERROR_NO_MEMORY;
1627	normalizePublicId(tem);
1628	declEntity->publicId = tem;
1629	poolFinish(&dtd.pool);
1630	}
1631	break;
1632	case XML_ROLE_INSTANCE_START:
1633	processor = contentProcessor;
1634	if (hadExternalDoctype)
1635	dtd.complete = 0;
1636	return contentProcessor(parser, s, end, nextPtr);
1637	case XML_ROLE_ATTLIST_ELEMENT_NAME:
1638	{
1639	const XML_Char *name = poolStoreString(&dtd.pool, encoding, s, next);
1640	if (!name)
1641	return XML_ERROR_NO_MEMORY;
1642	declElementType = (ELEMENT_TYPE *)lookup(&dtd.elementTypes, name, sizeof(ELEMENT_TYPE));
1643	if (!declElementType)
1644	return XML_ERROR_NO_MEMORY;
1645	if (declElementType->name != name)
1646	poolDiscard(&dtd.pool);
1647	else {
1648	poolFinish(&dtd.pool);
1649	if (!setElementTypePrefix(parser, declElementType))
1650	return XML_ERROR_NO_MEMORY;
1651	}
1652	break;
1653	}
1654	case XML_ROLE_ATTRIBUTE_NAME:
1655	declAttributeId = getAttributeId(parser, encoding, s, next);
1656	if (!declAttributeId)
1657	return XML_ERROR_NO_MEMORY;
1658	declAttributeIsCdata = 0;
1659	break;
1660	case XML_ROLE_ATTRIBUTE_TYPE_CDATA:
1661	declAttributeIsCdata = 1;
1662	break;
1663	case XML_ROLE_IMPLIED_ATTRIBUTE_VALUE:
1664	case XML_ROLE_REQUIRED_ATTRIBUTE_VALUE:
1665	if (dtd.complete
1666	&& !defineAttribute(declElementType, declAttributeId, declAttributeIsCdata, 0))
1667	return XML_ERROR_NO_MEMORY;
1668	break;
1669	case XML_ROLE_DEFAULT_ATTRIBUTE_VALUE:
1670	case XML_ROLE_FIXED_ATTRIBUTE_VALUE:
1671	{
1672	const XML_Char *attVal;
1673	enum XML_Error result
1674	= storeAttributeValue(parser, encoding, declAttributeIsCdata,
1675	s + encoding->minBytesPerChar,
1676	next - encoding->minBytesPerChar,
1677	&dtd.pool);
1678	if (result)
1679	return result;
1680	attVal = poolStart(&dtd.pool);
1681	poolFinish(&dtd.pool);
1682	if (dtd.complete
1683	&& !defineAttribute(declElementType, declAttributeId, declAttributeIsCdata, attVal))
1684	return XML_ERROR_NO_MEMORY;
1685	break;
1686	}
1687	case XML_ROLE_ENTITY_VALUE:
1688	{
1689	enum XML_Error result = storeEntityValue(parser, s, next);
1690	if (result != XML_ERROR_NONE)
1691	return result;
1692	}
1693	break;
1694	case XML_ROLE_ENTITY_SYSTEM_ID:
1695	if (declEntity) {
1696	declEntity->systemId = poolStoreString(&dtd.pool, encoding,
1697	s + encoding->minBytesPerChar,
1698	next - encoding->minBytesPerChar);
1699	if (!declEntity->systemId)
1700	return XML_ERROR_NO_MEMORY;
1701	declEntity->base = dtd.base;
1702	poolFinish(&dtd.pool);
1703	}
1704	break;
1705	case XML_ROLE_ENTITY_NOTATION_NAME:
1706	if (declEntity) {
1707	declEntity->notation = poolStoreString(&dtd.pool, encoding, s, next);
1708	if (!declEntity->notation)
1709	return XML_ERROR_NO_MEMORY;
1710	poolFinish(&dtd.pool);
1711	if (unparsedEntityDeclHandler) {
1712	eventPtr = eventEndPtr = s;
1713	unparsedEntityDeclHandler(handlerArg,
1714	declEntity->name,
1715	declEntity->base,
1716	declEntity->systemId,
1717	declEntity->publicId,
1718	declEntity->notation);
1719	}
1720
1721	}
1722	break;
1723	case XML_ROLE_GENERAL_ENTITY_NAME:
1724	{
1725	const XML_Char *name;
1726	if (XmlPredefinedEntityName(encoding, s, next)) {
1727	declEntity = 0;
1728	break;
1729	}
1730	name = poolStoreString(&dtd.pool, encoding, s, next);
1731	if (!name)
1732	return XML_ERROR_NO_MEMORY;
1733	if (dtd.complete) {
1734	declEntity = (ENTITY *)lookup(&dtd.generalEntities, name, sizeof(ENTITY));
1735	if (!declEntity)
1736	return XML_ERROR_NO_MEMORY;
1737	if (declEntity->name != name) {
1738	poolDiscard(&dtd.pool);
1739	declEntity = 0;
1740	}
1741	else
1742	poolFinish(&dtd.pool);
1743	}
1744	else {
1745	poolDiscard(&dtd.pool);
1746	declEntity = 0;
1747	}
1748	}
1749	break;
1750	case XML_ROLE_PARAM_ENTITY_NAME:
1751	declEntity = 0;
1752	break;
1753	case XML_ROLE_NOTATION_NAME:
1754	declNotationPublicId = 0;
1755	declNotationName = 0;
1756	if (notationDeclHandler) {
1757	declNotationName = poolStoreString(&tempPool, encoding, s, next);
1758	if (!declNotationName)
1759	return XML_ERROR_NO_MEMORY;
1760	poolFinish(&tempPool);
1761	}
1762	break;
1763	case XML_ROLE_NOTATION_PUBLIC_ID:
1764	if (!XmlIsPublicId(encoding, s, next, &eventPtr))
1765	return XML_ERROR_SYNTAX;
1766	if (declNotationName) {
1767	XML_Char *tem = poolStoreString(&tempPool,
1768	encoding,
1769	s + encoding->minBytesPerChar,
1770	next - encoding->minBytesPerChar);
1771	if (!tem)
1772	return XML_ERROR_NO_MEMORY;
1773	normalizePublicId(tem);
1774	declNotationPublicId = tem;
1775	poolFinish(&tempPool);
1776	}
1777	break;
1778	case XML_ROLE_NOTATION_SYSTEM_ID:
1779	if (declNotationName && notationDeclHandler) {
1780	const XML_Char *systemId
1781	= poolStoreString(&tempPool, encoding,
1782	s + encoding->minBytesPerChar,
1783	next - encoding->minBytesPerChar);
1784	if (!systemId)
1785	return XML_ERROR_NO_MEMORY;
1786	eventPtr = eventEndPtr = s;
1787	notationDeclHandler(handlerArg,
1788	declNotationName,
1789	dtd.base,
1790	systemId,
1791	declNotationPublicId);
1792	}
1793	poolClear(&tempPool);
1794	break;
1795	case XML_ROLE_NOTATION_NO_SYSTEM_ID:
1796	if (declNotationPublicId && notationDeclHandler) {
1797	eventPtr = eventEndPtr = s;
1798	notationDeclHandler(handlerArg,
1799	declNotationName,
1800	dtd.base,
1801	0,
1802	declNotationPublicId);
1803	}
1804	poolClear(&tempPool);
1805	break;
1806	case XML_ROLE_ERROR:
1807	eventPtr = s;
1808	switch (tok) {
1809	case XML_TOK_PARAM_ENTITY_REF:
1810	return XML_ERROR_PARAM_ENTITY_REF;
1811	case XML_TOK_XML_DECL:
1812	return XML_ERROR_MISPLACED_XML_PI;
1813	default:
1814	return XML_ERROR_SYNTAX;
1815	}
1816	case XML_ROLE_GROUP_OPEN:
1817	if (prologState.level >= groupSize) {
1818	if (groupSize)
1819	groupConnector = realloc(groupConnector, groupSize *= 2);
1820	else
1821	groupConnector = malloc(groupSize = 32);
1822	if (!groupConnector)
1823	return XML_ERROR_NO_MEMORY;
1824	}
1825	groupConnector[prologState.level] = 0;
1826	break;
1827	case XML_ROLE_GROUP_SEQUENCE:
1828	if (groupConnector[prologState.level] == '\|') {
1829	eventPtr = s;
1830	return XML_ERROR_SYNTAX;
1831	}
1832	groupConnector[prologState.level] = ',';
1833	break;
1834	case XML_ROLE_GROUP_CHOICE:
1835	if (groupConnector[prologState.level] == ',') {
1836	eventPtr = s;
1837	return XML_ERROR_SYNTAX;
1838	}
1839	groupConnector[prologState.level] = '\|';
1840	break;
1841	case XML_ROLE_PARAM_ENTITY_REF:
1842	if (!dtd.standalone
1843	&& notStandaloneHandler
1844	&& !notStandaloneHandler(handlerArg))
1845	return XML_ERROR_NOT_STANDALONE;
1846	dtd.complete = 0;
1847	break;
1848	case XML_ROLE_NONE:
1849	switch (tok) {
1850	case XML_TOK_PI:
1851	eventPtr = s;
1852	eventEndPtr = next;
1853	if (!reportProcessingInstruction(parser, encoding, s, next))
1854	return XML_ERROR_NO_MEMORY;
1855	break;
1856	case XML_TOK_COMMENT:
1857	eventPtr = s;
1858	eventEndPtr = next;
1859	if (!reportComment(parser, encoding, s, next))
1860	return XML_ERROR_NO_MEMORY;
1861	break;
1862	}
1863	break;
1864	}
1865	if (defaultHandler) {
1866	switch (tok) {
1867	case XML_TOK_PI:
1868	case XML_TOK_COMMENT:
1869	case XML_TOK_BOM:
1870	case XML_TOK_XML_DECL:
1871	break;
1872	default:
1873	eventPtr = s;
1874	eventEndPtr = next;
1875	reportDefault(parser, encoding, s, next);
1876	}
1877	}
1878	s = next;
1879	}
1880	/* not reached */
1881	}
1882
1883	static
1884	enum XML_Error epilogProcessor(XML_Parser parser,
1885	const char *s,
1886	const char *end,
1887	const char **nextPtr)
1888	{
1889	processor = epilogProcessor;
1890	eventPtr = s;
1891	for (;;) {
1892	const char *next;
1893	int tok = XmlPrologTok(encoding, s, end, &next);
1894	eventEndPtr = next;
1895	switch (tok) {
1896	case XML_TOK_TRAILING_CR:
1897	if (defaultHandler) {
1898	eventEndPtr = end;
1899	reportDefault(parser, encoding, s, end);
1900	}
1901	/* fall through */
1902	case XML_TOK_NONE:
1903	if (nextPtr)
1904	*nextPtr = end;
1905	return XML_ERROR_NONE;
1906	case XML_TOK_PROLOG_S:
1907	if (defaultHandler)
1908	reportDefault(parser, encoding, s, next);
1909	break;
1910	case XML_TOK_PI:
1911	if (!reportProcessingInstruction(parser, encoding, s, next))
1912	return XML_ERROR_NO_MEMORY;
1913	break;
1914	case XML_TOK_COMMENT:
1915	if (!reportComment(parser, encoding, s, next))
1916	return XML_ERROR_NO_MEMORY;
1917	break;
1918	case XML_TOK_INVALID:
1919	eventPtr = next;
1920	return XML_ERROR_INVALID_TOKEN;
1921	case XML_TOK_PARTIAL:
1922	if (nextPtr) {
1923	*nextPtr = s;
1924	return XML_ERROR_NONE;
1925	}
1926	return XML_ERROR_UNCLOSED_TOKEN;
1927	case XML_TOK_PARTIAL_CHAR:
1928	if (nextPtr) {
1929	*nextPtr = s;
1930	return XML_ERROR_NONE;
1931	}
1932	return XML_ERROR_PARTIAL_CHAR;
1933	default:
1934	return XML_ERROR_JUNK_AFTER_DOC_ELEMENT;
1935	}
1936	eventPtr = s = next;
1937	}
1938	}
1939
1940	static enum XML_Error
1941	storeAttributeValue(XML_Parser parser, const ENCODING *enc, int isCdata,
1942	const char ptr, const char end,
1943	STRING_POOL *pool)
1944	{
1945	enum XML_Error result = appendAttributeValue(parser, enc, isCdata, ptr, end, pool);
1946	if (result)
1947	return result;
1948	if (!isCdata && poolLength(pool) && poolLastChar(pool) == 0x20)
1949	poolChop(pool);
1950	if (!poolAppendChar(pool, XML_T('\0')))
1951	return XML_ERROR_NO_MEMORY;
1952	return XML_ERROR_NONE;
1953	}
1954
1955	static enum XML_Error
1956	appendAttributeValue(XML_Parser parser, const ENCODING *enc, int isCdata,
1957	const char ptr, const char end,
1958	STRING_POOL *pool)
1959	{
1960	const ENCODING *internalEnc = ns ? XmlGetInternalEncodingNS() : XmlGetInternalEncoding();
1961	for (;;) {
1962	const char *next;
1963	int tok = XmlAttributeValueTok(enc, ptr, end, &next);
1964	switch (tok) {
1965	case XML_TOK_NONE:
1966	return XML_ERROR_NONE;
1967	case XML_TOK_INVALID:
1968	if (enc == encoding)
1969	eventPtr = next;
1970	return XML_ERROR_INVALID_TOKEN;
1971	case XML_TOK_PARTIAL:
1972	if (enc == encoding)
1973	eventPtr = ptr;
1974	return XML_ERROR_INVALID_TOKEN;
1975	case XML_TOK_CHAR_REF:
1976	{
1977	XML_Char buf[XML_ENCODE_MAX];
1978	int i;
1979	int n = XmlCharRefNumber(enc, ptr);
1980	if (n < 0) {
1981	if (enc == encoding)
1982	eventPtr = ptr;
1983	return XML_ERROR_BAD_CHAR_REF;
1984	}
1985	if (!isCdata
1986	&& n == 0x20 /* space */
1987	&& (poolLength(pool) == 0 \|\| poolLastChar(pool) == 0x20))
1988	break;
1989	n = XmlEncode(n, (ICHAR *)buf);
1990	if (!n) {
1991	if (enc == encoding)
1992	eventPtr = ptr;
1993	return XML_ERROR_BAD_CHAR_REF;
1994	}
1995	for (i = 0; i < n; i++) {
1996	if (!poolAppendChar(pool, buf[i]))
1997	return XML_ERROR_NO_MEMORY;
1998	}
1999	}
2000	break;
2001	case XML_TOK_DATA_CHARS:
2002	if (!poolAppend(pool, enc, ptr, next))
2003	return XML_ERROR_NO_MEMORY;
2004	break;
2005	break;
2006	case XML_TOK_TRAILING_CR:
2007	next = ptr + enc->minBytesPerChar;
2008	/* fall through */
2009	case XML_TOK_ATTRIBUTE_VALUE_S:
2010	case XML_TOK_DATA_NEWLINE:
2011	if (!isCdata && (poolLength(pool) == 0 \|\| poolLastChar(pool) == 0x20))
2012	break;
2013	if (!poolAppendChar(pool, 0x20))
2014	return XML_ERROR_NO_MEMORY;
2015	break;
2016	case XML_TOK_ENTITY_REF:
2017	{
2018	const XML_Char *name;
2019	ENTITY *entity;
2020	XML_Char ch = XmlPredefinedEntityName(enc,
2021	ptr + enc->minBytesPerChar,
2022	next - enc->minBytesPerChar);
2023	if (ch) {
2024	if (!poolAppendChar(pool, ch))
2025	return XML_ERROR_NO_MEMORY;
2026	break;
2027	}
2028	name = poolStoreString(&temp2Pool, enc,
2029	ptr + enc->minBytesPerChar,
2030	next - enc->minBytesPerChar);
2031	if (!name)
2032	return XML_ERROR_NO_MEMORY;
2033	entity = (ENTITY *)lookup(&dtd.generalEntities, name, 0);
2034	poolDiscard(&temp2Pool);
2035	if (!entity) {
2036	if (dtd.complete) {
2037	if (enc == encoding)
2038	eventPtr = ptr;
2039	return XML_ERROR_UNDEFINED_ENTITY;
2040	}
2041	}
2042	else if (entity->open) {
2043	if (enc == encoding)
2044	eventPtr = ptr;
2045	return XML_ERROR_RECURSIVE_ENTITY_REF;
2046	}
2047	else if (entity->notation) {
2048	if (enc == encoding)
2049	eventPtr = ptr;
2050	return XML_ERROR_BINARY_ENTITY_REF;
2051	}
2052	else if (!entity->textPtr) {
2053	if (enc == encoding)
2054	eventPtr = ptr;
2055	return XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF;
2056	}
2057	else {
2058	enum XML_Error result;
2059	const XML_Char *textEnd = entity->textPtr + entity->textLen;
2060	entity->open = 1;
2061	result = appendAttributeValue(parser, internalEnc, isCdata, (char )entity->textPtr, (char )textEnd, pool);
2062	entity->open = 0;
2063	if (result)
2064	return result;
2065	}
2066	}
2067	break;
2068	default:
2069	abort();
2070	}
2071	ptr = next;
2072	}
2073	/* not reached */
2074	}
2075
2076	static
2077	enum XML_Error storeEntityValue(XML_Parser parser,
2078	const char *entityTextPtr,
2079	const char *entityTextEnd)
2080	{
2081	const ENCODING *internalEnc;
2082	STRING_POOL *pool = &(dtd.pool);
2083	entityTextPtr += encoding->minBytesPerChar;
2084	entityTextEnd -= encoding->minBytesPerChar;
2085	internalEnc = ns ? XmlGetInternalEncodingNS() : XmlGetInternalEncoding();
2086	for (;;) {
2087	const char *next;
2088	int tok = XmlEntityValueTok(encoding, entityTextPtr, entityTextEnd, &next);
2089	switch (tok) {
2090	case XML_TOK_PARAM_ENTITY_REF:
2091	eventPtr = entityTextPtr;
2092	return XML_ERROR_SYNTAX;
2093	case XML_TOK_NONE:
2094	if (declEntity) {
2095	declEntity->textPtr = pool->start;
2096	declEntity->textLen = pool->ptr - pool->start;
2097	poolFinish(pool);
2098	}
2099	else
2100	poolDiscard(pool);
2101	return XML_ERROR_NONE;
2102	case XML_TOK_ENTITY_REF:
2103	case XML_TOK_DATA_CHARS:
2104	if (!poolAppend(pool, encoding, entityTextPtr, next))
2105	return XML_ERROR_NO_MEMORY;
2106	break;
2107	case XML_TOK_TRAILING_CR:
2108	next = entityTextPtr + encoding->minBytesPerChar;
2109	/* fall through */
2110	case XML_TOK_DATA_NEWLINE:
2111	if (pool->end == pool->ptr && !poolGrow(pool))
2112	return XML_ERROR_NO_MEMORY;
2113	*(pool->ptr)++ = 0xA;
2114	break;
2115	case XML_TOK_CHAR_REF:
2116	{
2117	XML_Char buf[XML_ENCODE_MAX];
2118	int i;
2119	int n = XmlCharRefNumber(encoding, entityTextPtr);
2120	if (n < 0) {
2121	eventPtr = entityTextPtr;
2122	return XML_ERROR_BAD_CHAR_REF;
2123	}
2124	n = XmlEncode(n, (ICHAR *)buf);
2125	if (!n) {
2126	eventPtr = entityTextPtr;
2127	return XML_ERROR_BAD_CHAR_REF;
2128	}
2129	for (i = 0; i < n; i++) {
2130	if (pool->end == pool->ptr && !poolGrow(pool))
2131	return XML_ERROR_NO_MEMORY;
2132	*(pool->ptr)++ = buf[i];
2133	}
2134	}
2135	break;
2136	case XML_TOK_PARTIAL:
2137	eventPtr = entityTextPtr;
2138	return XML_ERROR_INVALID_TOKEN;
2139	case XML_TOK_INVALID:
2140	eventPtr = next;
2141	return XML_ERROR_INVALID_TOKEN;
2142	default:
2143	abort();
2144	}
2145	entityTextPtr = next;
2146	}
2147	/* not reached */
2148	}
2149
2150	static void
2151	normalizeLines(XML_Char *s)
2152	{
2153	XML_Char *p;
2154	for (;; s++) {
2155	if (*s == XML_T('\0'))
2156	return;
2157	if (*s == 0xD)
2158	break;
2159	}
2160	p = s;
2161	do {
2162	if (*s == 0xD) {
2163	*p++ = 0xA;
2164	if (*++s == 0xA)
2165	s++;
2166	}
2167	else
2168	p++ = s++;
2169	} while (*s);
2170	*p = XML_T('\0');
2171	}
2172
2173	static int
2174	reportProcessingInstruction(XML_Parser parser, const ENCODING enc, const char start, const char *end)
2175	{
2176	const XML_Char *target;
2177	XML_Char *data;
2178	const char *tem;
2179	if (!processingInstructionHandler) {
2180	if (defaultHandler)
2181	reportDefault(parser, enc, start, end);
2182	return 1;
2183	}
2184	start += enc->minBytesPerChar * 2;
2185	tem = start + XmlNameLength(enc, start);
2186	target = poolStoreString(&tempPool, enc, start, tem);
2187	if (!target)
2188	return 0;
2189	poolFinish(&tempPool);
2190	data = poolStoreString(&tempPool, enc,
2191	XmlSkipS(enc, tem),
2192	end - enc->minBytesPerChar*2);
2193	if (!data)
2194	return 0;
2195	normalizeLines(data);
2196	processingInstructionHandler(handlerArg, target, data);
2197	poolClear(&tempPool);
2198	return 1;
2199	}
2200
2201	static int
2202	reportComment(XML_Parser parser, const ENCODING enc, const char start, const char *end)
2203	{
2204	XML_Char *data;
2205	if (!commentHandler) {
2206	if (defaultHandler)
2207	reportDefault(parser, enc, start, end);
2208	return 1;
2209	}
2210	data = poolStoreString(&tempPool,
2211	enc,
2212	start + enc->minBytesPerChar * 4,
2213	end - enc->minBytesPerChar * 3);
2214	if (!data)
2215	return 0;
2216	normalizeLines(data);
2217	commentHandler(handlerArg, data);
2218	poolClear(&tempPool);
2219	return 1;
2220	}
2221
2222	static void
2223	reportDefault(XML_Parser parser, const ENCODING enc, const char s, const char *end)
2224	{
2225	if (MUST_CONVERT(enc, s)) {
2226	const char **eventPP;
2227	const char **eventEndPP;
2228	if (enc == encoding) {
2229	eventPP = &eventPtr;
2230	eventEndPP = &eventEndPtr;
2231	}
2232	else {
2233	eventPP = &(openInternalEntities->internalEventPtr);
2234	eventEndPP = &(openInternalEntities->internalEventEndPtr);
2235	}
2236	do {
2237	ICHAR dataPtr = (ICHAR )dataBuf;
2238	XmlConvert(enc, &s, end, &dataPtr, (ICHAR *)dataBufEnd);
2239	*eventEndPP = s;
2240	defaultHandler(handlerArg, dataBuf, dataPtr - (ICHAR *)dataBuf);
2241	*eventPP = s;
2242	} while (s != end);
2243	}
2244	else
2245	defaultHandler(handlerArg, (XML_Char )s, (XML_Char )end - (XML_Char *)s);
2246	}
2247
2248
2249	static int
2250	defineAttribute(ELEMENT_TYPE type, ATTRIBUTE_ID attId, int isCdata, const XML_Char *value)
2251	{
2252	DEFAULT_ATTRIBUTE *att;
2253	if (type->nDefaultAtts == type->allocDefaultAtts) {
2254	if (type->allocDefaultAtts == 0) {
2255	type->allocDefaultAtts = 8;
2256	type->defaultAtts = malloc(type->allocDefaultAtts*sizeof(DEFAULT_ATTRIBUTE));
2257	}
2258	else {
2259	type->allocDefaultAtts *= 2;
2260	type->defaultAtts = realloc(type->defaultAtts,
2261	type->allocDefaultAtts*sizeof(DEFAULT_ATTRIBUTE));
2262	}
2263	if (!type->defaultAtts)
2264	return 0;
2265	}
2266	att = type->defaultAtts + type->nDefaultAtts;
2267	att->id = attId;
2268	att->value = value;
2269	att->isCdata = isCdata;
2270	if (!isCdata)
2271	attId->maybeTokenized = 1;
2272	type->nDefaultAtts += 1;
2273	return 1;
2274	}
2275
2276	static int setElementTypePrefix(XML_Parser parser, ELEMENT_TYPE *elementType)
2277	{
2278	const XML_Char *name;
2279	for (name = elementType->name; *name; name++) {
2280	if (*name == XML_T(':')) {
2281	PREFIX *prefix;
2282	const XML_Char *s;
2283	for (s = elementType->name; s != name; s++) {
2284	if (!poolAppendChar(&dtd.pool, *s))
2285	return 0;
2286	}
2287	if (!poolAppendChar(&dtd.pool, XML_T('\0')))
2288	return 0;
2289	prefix = (PREFIX *)lookup(&dtd.prefixes, poolStart(&dtd.pool), sizeof(PREFIX));
2290	if (!prefix)
2291	return 0;
2292	if (prefix->name == poolStart(&dtd.pool))
2293	poolFinish(&dtd.pool);
2294	else
2295	poolDiscard(&dtd.pool);
2296	elementType->prefix = prefix;
2297
2298	}
2299	}
2300	return 1;
2301	}
2302
2303	static ATTRIBUTE_ID *
2304	getAttributeId(XML_Parser parser, const ENCODING enc, const char start, const char *end)
2305	{
2306	ATTRIBUTE_ID *id;
2307	const XML_Char *name;
2308	if (!poolAppendChar(&dtd.pool, XML_T('\0')))
2309	return 0;
2310	name = poolStoreString(&dtd.pool, enc, start, end);
2311	if (!name)
2312	return 0;
2313	++name;
2314	id = (ATTRIBUTE_ID *)lookup(&dtd.attributeIds, name, sizeof(ATTRIBUTE_ID));
2315	if (!id)
2316	return 0;
2317	if (id->name != name)
2318	poolDiscard(&dtd.pool);
2319	else {
2320	poolFinish(&dtd.pool);
2321	if (!ns)
2322	;
2323	else if (name[0] == 'x'
2324	&& name[1] == 'm'
2325	&& name[2] == 'l'
2326	&& name[3] == 'n'
2327	&& name[4] == 's'
2328	&& (name[5] == XML_T('\0') \|\| name[5] == XML_T(':'))) {
2329	if (name[5] == '\0')
2330	id->prefix = &dtd.defaultPrefix;
2331	else
2332	id->prefix = (PREFIX *)lookup(&dtd.prefixes, name + 6, sizeof(PREFIX));
2333	id->xmlns = 1;
2334	}
2335	else {
2336	int i;
2337	for (i = 0; name[i]; i++) {
2338	if (name[i] == XML_T(':')) {
2339	int j;
2340	for (j = 0; j < i; j++) {
2341	if (!poolAppendChar(&dtd.pool, name[j]))
2342	return 0;
2343	}
2344	if (!poolAppendChar(&dtd.pool, XML_T('\0')))
2345	return 0;
2346	id->prefix = (PREFIX *)lookup(&dtd.prefixes, poolStart(&dtd.pool), sizeof(PREFIX));
2347	if (id->prefix->name == poolStart(&dtd.pool))
2348	poolFinish(&dtd.pool);
2349	else
2350	poolDiscard(&dtd.pool);
2351	break;
2352	}
2353	}
2354	}
2355	}
2356	return id;
2357	}
2358
2359	#define CONTEXT_SEP XML_T('\f')
2360
2361	static
2362	const XML_Char *getContext(XML_Parser parser)
2363	{
2364	HASH_TABLE_ITER iter;
2365	int needSep = 0;
2366
2367	if (dtd.defaultPrefix.binding) {
2368	int i;
2369	int len;
2370	if (!poolAppendChar(&tempPool, XML_T('=')))
2371	return 0;
2372	len = dtd.defaultPrefix.binding->uriLen;
2373	if (namespaceSeparator != XML_T('\0'))
2374	len--;
2375	for (i = 0; i < len; i++)
2376	if (!poolAppendChar(&tempPool, dtd.defaultPrefix.binding->uri[i]))
2377	return 0;
2378	needSep = 1;
2379	}
2380
2381	hashTableIterInit(&iter, &(dtd.prefixes));
2382	for (;;) {
2383	int i;
2384	int len;
2385	const XML_Char *s;
2386	PREFIX prefix = (PREFIX )hashTableIterNext(&iter);
2387	if (!prefix)
2388	break;
2389	if (!prefix->binding)
2390	continue;
2391	if (needSep && !poolAppendChar(&tempPool, CONTEXT_SEP))
2392	return 0;
2393	for (s = prefix->name; *s; s++)
2394	if (!poolAppendChar(&tempPool, *s))
2395	return 0;
2396	if (!poolAppendChar(&tempPool, XML_T('=')))
2397	return 0;
2398	len = prefix->binding->uriLen;
2399	if (namespaceSeparator != XML_T('\0'))
2400	len--;
2401	for (i = 0; i < len; i++)
2402	if (!poolAppendChar(&tempPool, prefix->binding->uri[i]))
2403	return 0;
2404	needSep = 1;
2405	}
2406
2407
2408	hashTableIterInit(&iter, &(dtd.generalEntities));
2409	for (;;) {
2410	const XML_Char *s;
2411	ENTITY e = (ENTITY )hashTableIterNext(&iter);
2412	if (!e)
2413	break;
2414	if (!e->open)
2415	continue;
2416	if (needSep && !poolAppendChar(&tempPool, CONTEXT_SEP))
2417	return 0;
2418	for (s = e->name; *s; s++)
2419	if (!poolAppendChar(&tempPool, *s))
2420	return 0;
2421	needSep = 1;
2422	}
2423
2424	if (!poolAppendChar(&tempPool, XML_T('\0')))
2425	return 0;
2426	return tempPool.start;
2427	}
2428
2429	static
2430	void normalizePublicId(XML_Char *publicId)
2431	{
2432	XML_Char *p = publicId;
2433	XML_Char *s;
2434	for (s = publicId; *s; s++) {
2435	switch (*s) {
2436	case 0x20:
2437	case 0xD:
2438	case 0xA:
2439	if (p != publicId && p[-1] != 0x20)
2440	*p++ = 0x20;
2441	break;
2442	default:
2443	p++ = s;
2444	}
2445	}
2446	if (p != publicId && p[-1] == 0x20)
2447	--p;
2448	*p = XML_T('\0');
2449	}
2450
2451	static int dtdInit(DTD *p)
2452	{
2453	poolInit(&(p->pool));
2454	hashTableInit(&(p->generalEntities));
2455	hashTableInit(&(p->elementTypes));
2456	hashTableInit(&(p->attributeIds));
2457	hashTableInit(&(p->prefixes));
2458	p->complete = 1;
2459	p->standalone = 0;
2460	p->base = 0;
2461	p->defaultPrefix.name = 0;
2462	p->defaultPrefix.binding = 0;
2463	return 1;
2464	}
2465
2466	static void dtdDestroy(DTD *p)
2467	{
2468	HASH_TABLE_ITER iter;
2469	hashTableIterInit(&iter, &(p->elementTypes));
2470	for (;;) {
2471	ELEMENT_TYPE e = (ELEMENT_TYPE )hashTableIterNext(&iter);
2472	if (!e)
2473	break;
2474	if (e->allocDefaultAtts != 0)
2475	g_free(e->defaultAtts);
2476	}
2477	hashTableDestroy(&(p->generalEntities));
2478	hashTableDestroy(&(p->elementTypes));
2479	hashTableDestroy(&(p->attributeIds));
2480	hashTableDestroy(&(p->prefixes));
2481	poolDestroy(&(p->pool));
2482	}
2483
2484	static
2485	void poolInit(STRING_POOL *pool)
2486	{
2487	pool->blocks = 0;
2488	pool->freeBlocks = 0;
2489	pool->start = 0;
2490	pool->ptr = 0;
2491	pool->end = 0;
2492	}
2493
2494	static
2495	void poolClear(STRING_POOL *pool)
2496	{
2497	if (!pool->freeBlocks)
2498	pool->freeBlocks = pool->blocks;
2499	else {
2500	BLOCK *p = pool->blocks;
2501	while (p) {
2502	BLOCK *tem = p->next;
2503	p->next = pool->freeBlocks;
2504	pool->freeBlocks = p;
2505	p = tem;
2506	}
2507	}
2508	pool->blocks = 0;
2509	pool->start = 0;
2510	pool->ptr = 0;
2511	pool->end = 0;
2512	}
2513
2514	static
2515	void poolDestroy(STRING_POOL *pool)
2516	{
2517	BLOCK *p = pool->blocks;
2518	while (p) {
2519	BLOCK *tem = p->next;
2520	g_free(p);
2521	p = tem;
2522	}
2523	pool->blocks = 0;
2524	p = pool->freeBlocks;
2525	while (p) {
2526	BLOCK *tem = p->next;
2527	g_free(p);
2528	p = tem;
2529	}
2530	pool->freeBlocks = 0;
2531	pool->ptr = 0;
2532	pool->start = 0;
2533	pool->end = 0;
2534	}
2535
2536	static
2537	XML_Char poolAppend(STRING_POOL pool, const ENCODING *enc,
2538	const char ptr, const char end)
2539	{
2540	if (!pool->ptr && !poolGrow(pool))
2541	return 0;
2542	for (;;) {
2543	XmlConvert(enc, &ptr, end, (ICHAR *)&(pool->ptr), (ICHAR )pool->end);
2544	if (ptr == end)
2545	break;
2546	if (!poolGrow(pool))
2547	return 0;
2548	}
2549	return pool->start;
2550	}
2551
2552	static const XML_Char poolCopyString(STRING_POOL pool, const XML_Char *s)
2553	{
2554	do {
2555	if (!poolAppendChar(pool, *s))
2556	return 0;
2557	} while (*s++);
2558	s = pool->start;
2559	poolFinish(pool);
2560	return s;
2561	}
2562
2563	static
2564	XML_Char poolStoreString(STRING_POOL pool, const ENCODING *enc,
2565	const char ptr, const char end)
2566	{
2567	if (!poolAppend(pool, enc, ptr, end))
2568	return 0;
2569	if (pool->ptr == pool->end && !poolGrow(pool))
2570	return 0;
2571	*(pool->ptr)++ = 0;
2572	return pool->start;
2573	}
2574
2575	static
2576	int poolGrow(STRING_POOL *pool)
2577	{
2578	if (pool->freeBlocks) {
2579	if (pool->start == 0) {
2580	pool->blocks = pool->freeBlocks;
2581	pool->freeBlocks = pool->freeBlocks->next;
2582	pool->blocks->next = 0;
2583	pool->start = pool->blocks->s;
2584	pool->end = pool->start + pool->blocks->size;
2585	pool->ptr = pool->start;
2586	return 1;
2587	}
2588	if (pool->end - pool->start < pool->freeBlocks->size) {
2589	BLOCK *tem = pool->freeBlocks->next;
2590	pool->freeBlocks->next = pool->blocks;
2591	pool->blocks = pool->freeBlocks;
2592	pool->freeBlocks = tem;
2593	memcpy(pool->blocks->s, pool->start, (pool->end - pool->start) * sizeof(XML_Char));
2594	pool->ptr = pool->blocks->s + (pool->ptr - pool->start);
2595	pool->start = pool->blocks->s;
2596	pool->end = pool->start + pool->blocks->size;
2597	return 1;
2598	}
2599	}
2600	if (pool->blocks && pool->start == pool->blocks->s) {
2601	int blockSize = (pool->end - pool->start)*2;
2602	pool->blocks = realloc(pool->blocks, offsetof(BLOCK, s) + blockSize * sizeof(XML_Char));
2603	if (!pool->blocks)
2604	return 0;
2605	pool->blocks->size = blockSize;
2606	pool->ptr = pool->blocks->s + (pool->ptr - pool->start);
2607	pool->start = pool->blocks->s;
2608	pool->end = pool->start + blockSize;
2609	}
2610	else {
2611	BLOCK *tem;
2612	int blockSize = pool->end - pool->start;
2613	if (blockSize < INIT_BLOCK_SIZE)
2614	blockSize = INIT_BLOCK_SIZE;
2615	else
2616	blockSize *= 2;
2617	tem = malloc(offsetof(BLOCK, s) + blockSize * sizeof(XML_Char));
2618	if (!tem)
2619	return 0;
2620	tem->size = blockSize;
2621	tem->next = pool->blocks;
2622	pool->blocks = tem;
2623	memcpy(tem->s, pool->start, (pool->ptr - pool->start) * sizeof(XML_Char));
2624	pool->ptr = tem->s + (pool->ptr - pool->start);
2625	pool->start = tem->s;
2626	pool->end = tem->s + blockSize;
2627	}
2628	return 1;
2629	}

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