error.c@ 65114

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libxml 2.9.2 unmodified
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1	/*
2	* error.c: module displaying/handling XML parser errors
3	*
4	* See Copyright for the status of this software.
5	*
6	* Daniel Veillard <[email protected]>
7	*/
8
9	#define IN_LIBXML
10	#include "libxml.h"
11
12	#include <string.h>
13	#include <stdarg.h>
14	#include <libxml/parser.h>
15	#include <libxml/xmlerror.h>
16	#include <libxml/xmlmemory.h>
17	#include <libxml/globals.h>
18
19	void XMLCDECL xmlGenericErrorDefaultFunc (void *ctx ATTRIBUTE_UNUSED,
20	const char *msg,
21	...);
22
23	#define XML_GET_VAR_STR(msg, str) { \
24	int size, prev_size = -1; \
25	int chars; \
26	char *larger; \
27	va_list ap; \
28	\
29	str = (char *) xmlMalloc(150); \
30	if (str != NULL) { \
31	\
32	size = 150; \
33	\
34	while (size < 64000) { \
35	va_start(ap, msg); \
36	chars = vsnprintf(str, size, msg, ap); \
37	va_end(ap); \
38	if ((chars > -1) && (chars < size)) { \
39	if (prev_size == chars) { \
40	break; \
41	} else { \
42	prev_size = chars; \
43	} \
44	} \
45	if (chars > -1) \
46	size += chars + 1; \
47	else \
48	size += 100; \
49	if ((larger = (char *) xmlRealloc(str, size)) == NULL) {\
50	break; \
51	} \
52	str = larger; \
53	}} \
54	}
55
56	/************************************************************************
57	* *
58	* Handling of out of context errors *
59	* *
60	************************************************************************/
61
62	/**
63	* xmlGenericErrorDefaultFunc:
64	* @ctx: an error context
65	* @msg: the message to display/transmit
66	* @...: extra parameters for the message display
67	*
68	* Default handler for out of context error messages.
69	*/
70	void XMLCDECL
71	xmlGenericErrorDefaultFunc(void ctx ATTRIBUTE_UNUSED, const char msg, ...) {
72	va_list args;
73
74	if (xmlGenericErrorContext == NULL)
75	xmlGenericErrorContext = (void *) stderr;
76
77	va_start(args, msg);
78	vfprintf((FILE *)xmlGenericErrorContext, msg, args);
79	va_end(args);
80	}
81
82	/**
83	* initGenericErrorDefaultFunc:
84	* @handler: the handler
85	*
86	* Set or reset (if NULL) the default handler for generic errors
87	* to the builtin error function.
88	*/
89	void
90	initGenericErrorDefaultFunc(xmlGenericErrorFunc * handler)
91	{
92	if (handler == NULL)
93	xmlGenericError = xmlGenericErrorDefaultFunc;
94	else
95	xmlGenericError = (*handler);
96	}
97
98	/**
99	* xmlSetGenericErrorFunc:
100	* @ctx: the new error handling context
101	* @handler: the new handler function
102	*
103	* Function to reset the handler and the error context for out of
104	* context error messages.
105	* This simply means that @handler will be called for subsequent
106	* error messages while not parsing nor validating. And @ctx will
107	* be passed as first argument to @handler
108	* One can simply force messages to be emitted to another FILE * than
109	* stderr by setting @ctx to this file handle and @handler to NULL.
110	* For multi-threaded applications, this must be set separately for each thread.
111	*/
112	void
113	xmlSetGenericErrorFunc(void *ctx, xmlGenericErrorFunc handler) {
114	xmlGenericErrorContext = ctx;
115	if (handler != NULL)
116	xmlGenericError = handler;
117	else
118	xmlGenericError = xmlGenericErrorDefaultFunc;
119	}
120
121	/**
122	* xmlSetStructuredErrorFunc:
123	* @ctx: the new error handling context
124	* @handler: the new handler function
125	*
126	* Function to reset the handler and the error context for out of
127	* context structured error messages.
128	* This simply means that @handler will be called for subsequent
129	* error messages while not parsing nor validating. And @ctx will
130	* be passed as first argument to @handler
131	* For multi-threaded applications, this must be set separately for each thread.
132	*/
133	void
134	xmlSetStructuredErrorFunc(void *ctx, xmlStructuredErrorFunc handler) {
135	xmlStructuredErrorContext = ctx;
136	xmlStructuredError = handler;
137	}
138
139	/************************************************************************
140	* *
141	* Handling of parsing errors *
142	* *
143	************************************************************************/
144
145	/**
146	* xmlParserPrintFileInfo:
147	* @input: an xmlParserInputPtr input
148	*
149	* Displays the associated file and line informations for the current input
150	*/
151
152	void
153	xmlParserPrintFileInfo(xmlParserInputPtr input) {
154	if (input != NULL) {
155	if (input->filename)
156	xmlGenericError(xmlGenericErrorContext,
157	"%s:%d: ", input->filename,
158	input->line);
159	else
160	xmlGenericError(xmlGenericErrorContext,
161	"Entity: line %d: ", input->line);
162	}
163	}
164
165	/**
166	* xmlParserPrintFileContext:
167	* @input: an xmlParserInputPtr input
168	*
169	* Displays current context within the input content for error tracking
170	*/
171
172	static void
173	xmlParserPrintFileContextInternal(xmlParserInputPtr input ,
174	xmlGenericErrorFunc channel, void *data ) {
175	const xmlChar cur, base;
176	unsigned int n, col; /* GCC warns if signed, because compared with sizeof() */
177	xmlChar content[81]; /* space for 80 chars + line terminator */
178	xmlChar *ctnt;
179
180	if (input == NULL) return;
181	cur = input->cur;
182	base = input->base;
183	/* skip backwards over any end-of-lines */
184	while ((cur > base) && (((cur) == '\n') \|\| ((cur) == '\r'))) {
185	cur--;
186	}
187	n = 0;
188	/* search backwards for beginning-of-line (to max buff size) */
189	while ((n++ < (sizeof(content)-1)) && (cur > base) &&
190	((cur) != '\n') && ((cur) != '\r'))
191	cur--;
192	if (((cur) == '\n') \|\| ((cur) == '\r')) cur++;
193	/* calculate the error position in terms of the current position */
194	col = input->cur - cur;
195	/* search forward for end-of-line (to max buff size) */
196	n = 0;
197	ctnt = content;
198	/* copy selected text to our buffer */
199	while ((cur != 0) && ((cur) != '\n') &&
200	(*(cur) != '\r') && (n < sizeof(content)-1)) {
201	ctnt++ = cur++;
202	n++;
203	}
204	*ctnt = 0;
205	/* print out the selected text */
206	channel(data ,"%s\n", content);
207	/* create blank line with problem pointer */
208	n = 0;
209	ctnt = content;
210	/* (leave buffer space for pointer + line terminator) */
211	while ((n<col) && (n++ < sizeof(content)-2) && (*ctnt != 0)) {
212	if (*(ctnt) != '\t')
213	*(ctnt) = ' ';
214	ctnt++;
215	}
216	*ctnt++ = '^';
217	*ctnt = 0;
218	channel(data ,"%s\n", content);
219	}
220
221	/**
222	* xmlParserPrintFileContext:
223	* @input: an xmlParserInputPtr input
224	*
225	* Displays current context within the input content for error tracking
226	*/
227	void
228	xmlParserPrintFileContext(xmlParserInputPtr input) {
229	xmlParserPrintFileContextInternal(input, xmlGenericError,
230	xmlGenericErrorContext);
231	}
232
233	/**
234	* xmlReportError:
235	* @err: the error
236	* @ctx: the parser context or NULL
237	* @str: the formatted error message
238	*
239	* Report an erro with its context, replace the 4 old error/warning
240	* routines.
241	*/
242	static void
243	xmlReportError(xmlErrorPtr err, xmlParserCtxtPtr ctxt, const char *str,
244	xmlGenericErrorFunc channel, void *data)
245	{
246	char *file = NULL;
247	int line = 0;
248	int code = -1;
249	int domain;
250	const xmlChar *name = NULL;
251	xmlNodePtr node;
252	xmlErrorLevel level;
253	xmlParserInputPtr input = NULL;
254	xmlParserInputPtr cur = NULL;
255
256	if (err == NULL)
257	return;
258
259	if (channel == NULL) {
260	channel = xmlGenericError;
261	data = xmlGenericErrorContext;
262	}
263	file = err->file;
264	line = err->line;
265	code = err->code;
266	domain = err->domain;
267	level = err->level;
268	node = err->node;
269
270	if (code == XML_ERR_OK)
271	return;
272
273	if ((node != NULL) && (node->type == XML_ELEMENT_NODE))
274	name = node->name;
275
276	/*
277	* Maintain the compatibility with the legacy error handling
278	*/
279	if (ctxt != NULL) {
280	input = ctxt->input;
281	if ((input != NULL) && (input->filename == NULL) &&
282	(ctxt->inputNr > 1)) {
283	cur = input;
284	input = ctxt->inputTab[ctxt->inputNr - 2];
285	}
286	if (input != NULL) {
287	if (input->filename)
288	channel(data, "%s:%d: ", input->filename, input->line);
289	else if ((line != 0) && (domain == XML_FROM_PARSER))
290	channel(data, "Entity: line %d: ", input->line);
291	}
292	} else {
293	if (file != NULL)
294	channel(data, "%s:%d: ", file, line);
295	else if ((line != 0) &&
296	((domain == XML_FROM_PARSER) \|\| (domain == XML_FROM_SCHEMASV)\|\|
297	(domain == XML_FROM_SCHEMASP)\|\|(domain == XML_FROM_DTD) \|\|
298	(domain == XML_FROM_RELAXNGP)\|\|(domain == XML_FROM_RELAXNGV)))
299	channel(data, "Entity: line %d: ", line);
300	}
301	if (name != NULL) {
302	channel(data, "element %s: ", name);
303	}
304	switch (domain) {
305	case XML_FROM_PARSER:
306	channel(data, "parser ");
307	break;
308	case XML_FROM_NAMESPACE:
309	channel(data, "namespace ");
310	break;
311	case XML_FROM_DTD:
312	case XML_FROM_VALID:
313	channel(data, "validity ");
314	break;
315	case XML_FROM_HTML:
316	channel(data, "HTML parser ");
317	break;
318	case XML_FROM_MEMORY:
319	channel(data, "memory ");
320	break;
321	case XML_FROM_OUTPUT:
322	channel(data, "output ");
323	break;
324	case XML_FROM_IO:
325	channel(data, "I/O ");
326	break;
327	case XML_FROM_XINCLUDE:
328	channel(data, "XInclude ");
329	break;
330	case XML_FROM_XPATH:
331	channel(data, "XPath ");
332	break;
333	case XML_FROM_XPOINTER:
334	channel(data, "parser ");
335	break;
336	case XML_FROM_REGEXP:
337	channel(data, "regexp ");
338	break;
339	case XML_FROM_MODULE:
340	channel(data, "module ");
341	break;
342	case XML_FROM_SCHEMASV:
343	channel(data, "Schemas validity ");
344	break;
345	case XML_FROM_SCHEMASP:
346	channel(data, "Schemas parser ");
347	break;
348	case XML_FROM_RELAXNGP:
349	channel(data, "Relax-NG parser ");
350	break;
351	case XML_FROM_RELAXNGV:
352	channel(data, "Relax-NG validity ");
353	break;
354	case XML_FROM_CATALOG:
355	channel(data, "Catalog ");
356	break;
357	case XML_FROM_C14N:
358	channel(data, "C14N ");
359	break;
360	case XML_FROM_XSLT:
361	channel(data, "XSLT ");
362	break;
363	case XML_FROM_I18N:
364	channel(data, "encoding ");
365	break;
366	case XML_FROM_SCHEMATRONV:
367	channel(data, "schematron ");
368	break;
369	case XML_FROM_BUFFER:
370	channel(data, "internal buffer ");
371	break;
372	case XML_FROM_URI:
373	channel(data, "URI ");
374	break;
375	default:
376	break;
377	}
378	switch (level) {
379	case XML_ERR_NONE:
380	channel(data, ": ");
381	break;
382	case XML_ERR_WARNING:
383	channel(data, "warning : ");
384	break;
385	case XML_ERR_ERROR:
386	channel(data, "error : ");
387	break;
388	case XML_ERR_FATAL:
389	channel(data, "error : ");
390	break;
391	}
392	if (str != NULL) {
393	int len;
394	len = xmlStrlen((const xmlChar *)str);
395	if ((len > 0) && (str[len - 1] != '\n'))
396	channel(data, "%s\n", str);
397	else
398	channel(data, "%s", str);
399	} else {
400	channel(data, "%s\n", "out of memory error");
401	}
402
403	if (ctxt != NULL) {
404	xmlParserPrintFileContextInternal(input, channel, data);
405	if (cur != NULL) {
406	if (cur->filename)
407	channel(data, "%s:%d: \n", cur->filename, cur->line);
408	else if ((line != 0) && (domain == XML_FROM_PARSER))
409	channel(data, "Entity: line %d: \n", cur->line);
410	xmlParserPrintFileContextInternal(cur, channel, data);
411	}
412	}
413	if ((domain == XML_FROM_XPATH) && (err->str1 != NULL) &&
414	(err->int1 < 100) &&
415	(err->int1 < xmlStrlen((const xmlChar *)err->str1))) {
416	xmlChar buf[150];
417	int i;
418
419	channel(data, "%s\n", err->str1);
420	for (i=0;i < err->int1;i++)
421	buf[i] = ' ';
422	buf[i++] = '^';
423	buf[i] = 0;
424	channel(data, "%s\n", buf);
425	}
426	}
427
428	/**
429	* __xmlRaiseError:
430	* @schannel: the structured callback channel
431	* @channel: the old callback channel
432	* @data: the callback data
433	* @ctx: the parser context or NULL
434	* @ctx: the parser context or NULL
435	* @domain: the domain for the error
436	* @code: the code for the error
437	* @level: the xmlErrorLevel for the error
438	* @file: the file source of the error (or NULL)
439	* @line: the line of the error or 0 if N/A
440	* @str1: extra string info
441	* @str2: extra string info
442	* @str3: extra string info
443	* @int1: extra int info
444	* @col: column number of the error or 0 if N/A
445	* @msg: the message to display/transmit
446	* @...: extra parameters for the message display
447	*
448	* Update the appropriate global or contextual error structure,
449	* then forward the error message down the parser or generic
450	* error callback handler
451	*/
452	void XMLCDECL
453	__xmlRaiseError(xmlStructuredErrorFunc schannel,
454	xmlGenericErrorFunc channel, void data, void ctx,
455	void *nod, int domain, int code, xmlErrorLevel level,
456	const char file, int line, const char str1,
457	const char str2, const char str3, int int1, int col,
458	const char *msg, ...)
459	{
460	xmlParserCtxtPtr ctxt = NULL;
461	xmlNodePtr node = (xmlNodePtr) nod;
462	char *str = NULL;
463	xmlParserInputPtr input = NULL;
464	xmlErrorPtr to = &xmlLastError;
465	xmlNodePtr baseptr = NULL;
466
467	if (code == XML_ERR_OK)
468	return;
469	if ((xmlGetWarningsDefaultValue == 0) && (level == XML_ERR_WARNING))
470	return;
471	if ((domain == XML_FROM_PARSER) \|\| (domain == XML_FROM_HTML) \|\|
472	(domain == XML_FROM_DTD) \|\| (domain == XML_FROM_NAMESPACE) \|\|
473	(domain == XML_FROM_IO) \|\| (domain == XML_FROM_VALID)) {
474	ctxt = (xmlParserCtxtPtr) ctx;
475	if ((schannel == NULL) && (ctxt != NULL) && (ctxt->sax != NULL) &&
476	(ctxt->sax->initialized == XML_SAX2_MAGIC) &&
477	(ctxt->sax->serror != NULL)) {
478	schannel = ctxt->sax->serror;
479	data = ctxt->userData;
480	}
481	}
482	/*
483	* Check if structured error handler set
484	*/
485	if (schannel == NULL) {
486	schannel = xmlStructuredError;
487	/*
488	* if user has defined handler, change data ptr to user's choice
489	*/
490	if (schannel != NULL)
491	data = xmlStructuredErrorContext;
492	}
493	/*
494	* Formatting the message
495	*/
496	if (msg == NULL) {
497	str = (char *) xmlStrdup(BAD_CAST "No error message provided");
498	} else {
499	XML_GET_VAR_STR(msg, str);
500	}
501
502	/*
503	* specific processing if a parser context is provided
504	*/
505	if (ctxt != NULL) {
506	if (file == NULL) {
507	input = ctxt->input;
508	if ((input != NULL) && (input->filename == NULL) &&
509	(ctxt->inputNr > 1)) {
510	input = ctxt->inputTab[ctxt->inputNr - 2];
511	}
512	if (input != NULL) {
513	file = input->filename;
514	line = input->line;
515	col = input->col;
516	}
517	}
518	to = &ctxt->lastError;
519	} else if ((node != NULL) && (file == NULL)) {
520	int i;
521
522	if ((node->doc != NULL) && (node->doc->URL != NULL)) {
523	baseptr = node;
524	/* file = (const char ) node->doc->URL; /
525	}
526	for (i = 0;
527	((i < 10) && (node != NULL) && (node->type != XML_ELEMENT_NODE));
528	i++)
529	node = node->parent;
530	if ((baseptr == NULL) && (node != NULL) &&
531	(node->doc != NULL) && (node->doc->URL != NULL))
532	baseptr = node;
533
534	if ((node != NULL) && (node->type == XML_ELEMENT_NODE))
535	line = node->line;
536	if ((line == 0) \|\| (line == 65535))
537	line = xmlGetLineNo(node);
538	}
539
540	/*
541	* Save the information about the error
542	*/
543	xmlResetError(to);
544	to->domain = domain;
545	to->code = code;
546	to->message = str;
547	to->level = level;
548	if (file != NULL)
549	to->file = (char ) xmlStrdup((const xmlChar ) file);
550	else if (baseptr != NULL) {
551	#ifdef LIBXML_XINCLUDE_ENABLED
552	/*
553	* We check if the error is within an XInclude section and,
554	* if so, attempt to print out the href of the XInclude instead
555	* of the usual "base" (doc->URL) for the node (bug 152623).
556	*/
557	xmlNodePtr prev = baseptr;
558	int inclcount = 0;
559	while (prev != NULL) {
560	if (prev->prev == NULL)
561	prev = prev->parent;
562	else {
563	prev = prev->prev;
564	if (prev->type == XML_XINCLUDE_START) {
565	if (--inclcount < 0)
566	break;
567	} else if (prev->type == XML_XINCLUDE_END)
568	inclcount++;
569	}
570	}
571	if (prev != NULL) {
572	if (prev->type == XML_XINCLUDE_START) {
573	prev->type = XML_ELEMENT_NODE;
574	to->file = (char *) xmlGetProp(prev, BAD_CAST "href");
575	prev->type = XML_XINCLUDE_START;
576	} else {
577	to->file = (char *) xmlGetProp(prev, BAD_CAST "href");
578	}
579	} else
580	#endif
581	to->file = (char *) xmlStrdup(baseptr->doc->URL);
582	if ((to->file == NULL) && (node != NULL) && (node->doc != NULL)) {
583	to->file = (char *) xmlStrdup(node->doc->URL);
584	}
585	}
586	to->line = line;
587	if (str1 != NULL)
588	to->str1 = (char ) xmlStrdup((const xmlChar ) str1);
589	if (str2 != NULL)
590	to->str2 = (char ) xmlStrdup((const xmlChar ) str2);
591	if (str3 != NULL)
592	to->str3 = (char ) xmlStrdup((const xmlChar ) str3);
593	to->int1 = int1;
594	to->int2 = col;
595	to->node = node;
596	to->ctxt = ctx;
597
598	if (to != &xmlLastError)
599	xmlCopyError(to,&xmlLastError);
600
601	if (schannel != NULL) {
602	schannel(data, to);
603	return;
604	}
605
606	/*
607	* Find the callback channel if channel param is NULL
608	*/
609	if ((ctxt != NULL) && (channel == NULL) &&
610	(xmlStructuredError == NULL) && (ctxt->sax != NULL)) {
611	if (level == XML_ERR_WARNING)
612	channel = ctxt->sax->warning;
613	else
614	channel = ctxt->sax->error;
615	data = ctxt->userData;
616	} else if (channel == NULL) {
617	channel = xmlGenericError;
618	if (ctxt != NULL) {
619	data = ctxt;
620	} else {
621	data = xmlGenericErrorContext;
622	}
623	}
624	if (channel == NULL)
625	return;
626
627	if ((channel == xmlParserError) \|\|
628	(channel == xmlParserWarning) \|\|
629	(channel == xmlParserValidityError) \|\|
630	(channel == xmlParserValidityWarning))
631	xmlReportError(to, ctxt, str, NULL, NULL);
632	else if ((channel == (xmlGenericErrorFunc) fprintf) \|\|
633	(channel == xmlGenericErrorDefaultFunc))
634	xmlReportError(to, ctxt, str, channel, data);
635	else
636	channel(data, "%s", str);
637	}
638
639	/**
640	* __xmlSimpleError:
641	* @domain: where the error comes from
642	* @code: the error code
643	* @node: the context node
644	* @extra: extra informations
645	*
646	* Handle an out of memory condition
647	*/
648	void
649	__xmlSimpleError(int domain, int code, xmlNodePtr node,
650	const char msg, const char extra)
651	{
652
653	if (code == XML_ERR_NO_MEMORY) {
654	if (extra)
655	__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
656	XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
657	NULL, NULL, 0, 0,
658	"Memory allocation failed : %s\n", extra);
659	else
660	__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
661	XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
662	NULL, NULL, 0, 0, "Memory allocation failed\n");
663	} else {
664	__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
665	code, XML_ERR_ERROR, NULL, 0, extra,
666	NULL, NULL, 0, 0, msg, extra);
667	}
668	}
669	/**
670	* xmlParserError:
671	* @ctx: an XML parser context
672	* @msg: the message to display/transmit
673	* @...: extra parameters for the message display
674	*
675	* Display and format an error messages, gives file, line, position and
676	* extra parameters.
677	*/
678	void XMLCDECL
679	xmlParserError(void ctx, const char msg, ...)
680	{
681	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
682	xmlParserInputPtr input = NULL;
683	xmlParserInputPtr cur = NULL;
684	char * str;
685
686	if (ctxt != NULL) {
687	input = ctxt->input;
688	if ((input != NULL) && (input->filename == NULL) &&
689	(ctxt->inputNr > 1)) {
690	cur = input;
691	input = ctxt->inputTab[ctxt->inputNr - 2];
692	}
693	xmlParserPrintFileInfo(input);
694	}
695
696	xmlGenericError(xmlGenericErrorContext, "error: ");
697	XML_GET_VAR_STR(msg, str);
698	xmlGenericError(xmlGenericErrorContext, "%s", str);
699	if (str != NULL)
700	xmlFree(str);
701
702	if (ctxt != NULL) {
703	xmlParserPrintFileContext(input);
704	if (cur != NULL) {
705	xmlParserPrintFileInfo(cur);
706	xmlGenericError(xmlGenericErrorContext, "\n");
707	xmlParserPrintFileContext(cur);
708	}
709	}
710	}
711
712	/**
713	* xmlParserWarning:
714	* @ctx: an XML parser context
715	* @msg: the message to display/transmit
716	* @...: extra parameters for the message display
717	*
718	* Display and format a warning messages, gives file, line, position and
719	* extra parameters.
720	*/
721	void XMLCDECL
722	xmlParserWarning(void ctx, const char msg, ...)
723	{
724	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
725	xmlParserInputPtr input = NULL;
726	xmlParserInputPtr cur = NULL;
727	char * str;
728
729	if (ctxt != NULL) {
730	input = ctxt->input;
731	if ((input != NULL) && (input->filename == NULL) &&
732	(ctxt->inputNr > 1)) {
733	cur = input;
734	input = ctxt->inputTab[ctxt->inputNr - 2];
735	}
736	xmlParserPrintFileInfo(input);
737	}
738
739	xmlGenericError(xmlGenericErrorContext, "warning: ");
740	XML_GET_VAR_STR(msg, str);
741	xmlGenericError(xmlGenericErrorContext, "%s", str);
742	if (str != NULL)
743	xmlFree(str);
744
745	if (ctxt != NULL) {
746	xmlParserPrintFileContext(input);
747	if (cur != NULL) {
748	xmlParserPrintFileInfo(cur);
749	xmlGenericError(xmlGenericErrorContext, "\n");
750	xmlParserPrintFileContext(cur);
751	}
752	}
753	}
754
755	/************************************************************************
756	* *
757	* Handling of validation errors *
758	* *
759	************************************************************************/
760
761	/**
762	* xmlParserValidityError:
763	* @ctx: an XML parser context
764	* @msg: the message to display/transmit
765	* @...: extra parameters for the message display
766	*
767	* Display and format an validity error messages, gives file,
768	* line, position and extra parameters.
769	*/
770	void XMLCDECL
771	xmlParserValidityError(void ctx, const char msg, ...)
772	{
773	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
774	xmlParserInputPtr input = NULL;
775	char * str;
776	int len = xmlStrlen((const xmlChar *) msg);
777	static int had_info = 0;
778
779	if ((len > 1) && (msg[len - 2] != ':')) {
780	if (ctxt != NULL) {
781	input = ctxt->input;
782	if ((input->filename == NULL) && (ctxt->inputNr > 1))
783	input = ctxt->inputTab[ctxt->inputNr - 2];
784
785	if (had_info == 0) {
786	xmlParserPrintFileInfo(input);
787	}
788	}
789	xmlGenericError(xmlGenericErrorContext, "validity error: ");
790	had_info = 0;
791	} else {
792	had_info = 1;
793	}
794
795	XML_GET_VAR_STR(msg, str);
796	xmlGenericError(xmlGenericErrorContext, "%s", str);
797	if (str != NULL)
798	xmlFree(str);
799
800	if ((ctxt != NULL) && (input != NULL)) {
801	xmlParserPrintFileContext(input);
802	}
803	}
804
805	/**
806	* xmlParserValidityWarning:
807	* @ctx: an XML parser context
808	* @msg: the message to display/transmit
809	* @...: extra parameters for the message display
810	*
811	* Display and format a validity warning messages, gives file, line,
812	* position and extra parameters.
813	*/
814	void XMLCDECL
815	xmlParserValidityWarning(void ctx, const char msg, ...)
816	{
817	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
818	xmlParserInputPtr input = NULL;
819	char * str;
820	int len = xmlStrlen((const xmlChar *) msg);
821
822	if ((ctxt != NULL) && (len != 0) && (msg[len - 1] != ':')) {
823	input = ctxt->input;
824	if ((input->filename == NULL) && (ctxt->inputNr > 1))
825	input = ctxt->inputTab[ctxt->inputNr - 2];
826
827	xmlParserPrintFileInfo(input);
828	}
829
830	xmlGenericError(xmlGenericErrorContext, "validity warning: ");
831	XML_GET_VAR_STR(msg, str);
832	xmlGenericError(xmlGenericErrorContext, "%s", str);
833	if (str != NULL)
834	xmlFree(str);
835
836	if (ctxt != NULL) {
837	xmlParserPrintFileContext(input);
838	}
839	}
840
841
842	/************************************************************************
843	* *
844	* Extended Error Handling *
845	* *
846	************************************************************************/
847
848	/**
849	* xmlGetLastError:
850	*
851	* Get the last global error registered. This is per thread if compiled
852	* with thread support.
853	*
854	* Returns NULL if no error occured or a pointer to the error
855	*/
856	xmlErrorPtr
857	xmlGetLastError(void)
858	{
859	if (xmlLastError.code == XML_ERR_OK)
860	return (NULL);
861	return (&xmlLastError);
862	}
863
864	/**
865	* xmlResetError:
866	* @err: pointer to the error.
867	*
868	* Cleanup the error.
869	*/
870	void
871	xmlResetError(xmlErrorPtr err)
872	{
873	if (err == NULL)
874	return;
875	if (err->code == XML_ERR_OK)
876	return;
877	if (err->message != NULL)
878	xmlFree(err->message);
879	if (err->file != NULL)
880	xmlFree(err->file);
881	if (err->str1 != NULL)
882	xmlFree(err->str1);
883	if (err->str2 != NULL)
884	xmlFree(err->str2);
885	if (err->str3 != NULL)
886	xmlFree(err->str3);
887	memset(err, 0, sizeof(xmlError));
888	err->code = XML_ERR_OK;
889	}
890
891	/**
892	* xmlResetLastError:
893	*
894	* Cleanup the last global error registered. For parsing error
895	* this does not change the well-formedness result.
896	*/
897	void
898	xmlResetLastError(void)
899	{
900	if (xmlLastError.code == XML_ERR_OK)
901	return;
902	xmlResetError(&xmlLastError);
903	}
904
905	/**
906	* xmlCtxtGetLastError:
907	* @ctx: an XML parser context
908	*
909	* Get the last parsing error registered.
910	*
911	* Returns NULL if no error occured or a pointer to the error
912	*/
913	xmlErrorPtr
914	xmlCtxtGetLastError(void *ctx)
915	{
916	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
917
918	if (ctxt == NULL)
919	return (NULL);
920	if (ctxt->lastError.code == XML_ERR_OK)
921	return (NULL);
922	return (&ctxt->lastError);
923	}
924
925	/**
926	* xmlCtxtResetLastError:
927	* @ctx: an XML parser context
928	*
929	* Cleanup the last global error registered. For parsing error
930	* this does not change the well-formedness result.
931	*/
932	void
933	xmlCtxtResetLastError(void *ctx)
934	{
935	xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
936
937	if (ctxt == NULL)
938	return;
939	ctxt->errNo = XML_ERR_OK;
940	if (ctxt->lastError.code == XML_ERR_OK)
941	return;
942	xmlResetError(&ctxt->lastError);
943	}
944
945	/**
946	* xmlCopyError:
947	* @from: a source error
948	* @to: a target error
949	*
950	* Save the original error to the new place.
951	*
952	* Returns 0 in case of success and -1 in case of error.
953	*/
954	int
955	xmlCopyError(xmlErrorPtr from, xmlErrorPtr to) {
956	char message, file, str1, str2, *str3;
957
958	if ((from == NULL) \|\| (to == NULL))
959	return(-1);
960
961	message = (char ) xmlStrdup((xmlChar ) from->message);
962	file = (char ) xmlStrdup ((xmlChar ) from->file);
963	str1 = (char ) xmlStrdup ((xmlChar ) from->str1);
964	str2 = (char ) xmlStrdup ((xmlChar ) from->str2);
965	str3 = (char ) xmlStrdup ((xmlChar ) from->str3);
966
967	if (to->message != NULL)
968	xmlFree(to->message);
969	if (to->file != NULL)
970	xmlFree(to->file);
971	if (to->str1 != NULL)
972	xmlFree(to->str1);
973	if (to->str2 != NULL)
974	xmlFree(to->str2);
975	if (to->str3 != NULL)
976	xmlFree(to->str3);
977	to->domain = from->domain;
978	to->code = from->code;
979	to->level = from->level;
980	to->line = from->line;
981	to->node = from->node;
982	to->int1 = from->int1;
983	to->int2 = from->int2;
984	to->node = from->node;
985	to->ctxt = from->ctxt;
986	to->message = message;
987	to->file = file;
988	to->str1 = str1;
989	to->str2 = str2;
990	to->str3 = str3;
991
992	return 0;
993	}
994
995	#define bottom_error
996	#include "elfgcchack.h"

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source: vbox/trunk/src/libs/libxml2-2.9.2/error.c@ 65114

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