/*
* error.c: module displaying/handling XML parser errors
*
* See Copyright for the status of this software.
*
* Daniel Veillard <daniel@veillard.com>
*/
#define IN_LIBXML
#include "XmlEnglibxml.h"
#include <string.h>
#include <stdarg.h>
//#include "Libxml2_parser.h"
//#include "Libxml2_xmlerror.h"
//#include "Libxml2_xmlmemory.h"
#include "Libxml2_globals.h"
void xmlGenericErrorDefaultFunc (void *ctx ATTRIBUTE_UNUSED,
const char *msg,
...);
#define XML_GET_VAR_STR(msg, str) { \
int size; \
int chars; \
char *larger; \
va_list ap; \
\
str = (char *) xmlMalloc(150); \
if (str != NULL) { \
\
size = 150; \
\
while (1) { \
va_start(ap, msg); \
chars = vsnprintf(str, size, msg, ap); \
va_end(ap); \
if ((chars > -1) && (chars < size)) \
break; \
if (chars > -1) \
size += chars + 1; \
else \
size += 100; \
if ((larger = (char *) xmlRealloc(str, size)) == NULL) {\
break; \
} \
str = larger; \
}} \
}
/************************************************************************
* *
* Handling of out of context errors *
* *
************************************************************************/
/**
* xmlGenericErrorDefaultFunc:
* @ctx: an error context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Default handler for out of context error messages.
*/
void
xmlGenericErrorDefaultFunc(void *ctx ATTRIBUTE_UNUSED, const char *msg, ...) {
#ifdef XMLENGINE_DISABLE_STDOUT
// TODO: LOGGING: do logging here
return;
#else
va_list args;
if (xmlGenericErrorContext == NULL)
xmlGenericErrorContext = (void *) stderr;
va_start(args, msg);
vfprintf((FILE *)xmlGenericErrorContext, msg, args);
va_end(args);
if(ctx) return;
#endif
}
/**
* initGenericErrorDefaultFunc:
* @handler: the handler
*
* Set or reset (if NULL) the default handler for generic errors
* to the builtin error function.
*/
void
initGenericErrorDefaultFunc(xmlGenericErrorFunc * handler)
{
if (handler == NULL)
xmlGenericError = xmlGenericErrorDefaultFunc;
else
xmlGenericError = (*handler);
}
/**
* xmlSetGenericErrorFunc:
* @ctx: the new error handling context
* @handler: the new handler function
*
* Function to reset the handler and the error context for out of
* context error messages.
* This simply means that @handler will be called for subsequent
* error messages while not parsing nor validating. And @ctx will
* be passed as first argument to @handler
* One can simply force messages to be emitted to another FILE * than
* stderr by setting @ctx to this file handle and @handler to NULL.
*/
void
xmlSetGenericErrorFunc(void *ctx, xmlGenericErrorFunc handler) {
xmlGenericErrorContext = ctx;
if (handler != NULL)
xmlGenericError = handler;
else
xmlGenericError = xmlGenericErrorDefaultFunc;
}
/**
* xmlSetStructuredErrorFunc:
* @ctx: the new error handling context
* @handler: the new handler function
*
* Function to reset the handler and the error context for out of
* context structured error messages.
* This simply means that @handler will be called for subsequent
* error messages while not parsing nor validating. And @ctx will
* be passed as first argument to @handler
*/
void
xmlSetStructuredErrorFunc(void *ctx, xmlStructuredErrorFunc handler) {
xmlGenericErrorContext = ctx;
xmlStructuredError = handler;
}
/************************************************************************
* *
* Handling of parsing errors *
* *
************************************************************************/
/**
* xmlParserPrintFileInfo:
* @input: an xmlParserInputPtr input
*
* Displays the associated file and line informations for the current input
*/
void
xmlParserPrintFileInfo(xmlParserInputPtr input) {
if (input != NULL) {
if (input->filename)
xmlGenericError(xmlGenericErrorContext,
"%s:%d: ", input->filename,
input->line);
else
xmlGenericError(xmlGenericErrorContext,
"Entity: line %d: ", input->line);
}
}
/**
* xmlParserPrintFileContext:
* @input: an xmlParserInputPtr input
*
* Displays current context within the input content for error tracking
*/
static void
xmlParserPrintFileContextInternal(xmlParserInputPtr input ,
xmlGenericErrorFunc channel, void *data ) {
const xmlChar *cur, *base;
unsigned int n, col; /* GCC warns if signed, because compared with sizeof() */
xmlChar content[81]; /* space for 80 chars + line terminator */
xmlChar *ctnt;
if (input == NULL) return;
cur = input->cur;
base = input->base;
/* skip backwards over any end-of-lines */
while ((cur > base) && ((*(cur) == '\n') || (*(cur) == '\r'))) {
cur--;
}
n = 0;
/* search backwards for beginning-of-line (to max buff size) */
while ((n++ < (sizeof(content)-1)) && (cur > base) &&
(*(cur) != '\n') && (*(cur) != '\r'))
cur--;
if ((*(cur) == '\n') || (*(cur) == '\r')) cur++;
/* calculate the error position in terms of the current position */
col = input->cur - cur;
/* search forward for end-of-line (to max buff size) */
n = 0;
ctnt = content;
/* copy selected text to our buffer */
while ((*cur != 0) && (*(cur) != '\n') &&
(*(cur) != '\r') && (n < sizeof(content)-1)) {
*ctnt++ = *cur++;
n++;
}
*ctnt = 0;
/* print out the selected text */
channel(data ,"%s\n", content);
/* create blank line with problem pointer */
n = 0;
ctnt = content;
/* (leave buffer space for pointer + line terminator) */
while ((n<col) && (n++ < sizeof(content)-2) && (*ctnt != 0)) {
if (*(ctnt) != '\t')
*(ctnt) = ' ';
ctnt++;
}
*ctnt++ = '^';
*ctnt = 0;
channel(data ,"%s\n", content);
}
/**
* xmlParserPrintFileContext:
* @input: an xmlParserInputPtr input
*
* Displays current context within the input content for error tracking
*/
void
xmlParserPrintFileContext(xmlParserInputPtr input) {
xmlParserPrintFileContextInternal(input, xmlGenericError,
xmlGenericErrorContext);
}
//TODO: xmlReportError is required for debug/non-Symbian releases only
/**
* xmlReportError:
* @err: the error
* @ctx: the parser context or NULL
* @str: the formatted error message
*
* Report an erro with its context, replace the 4 old error/warning
* routines.
*/
static void
xmlReportError(xmlErrorPtr err, xmlParserCtxtPtr ctxt, const char *str,
xmlGenericErrorFunc channel, void *data)
{
char *file = NULL;
int line = 0;
int code = -1;
int domain;
const xmlChar *name = NULL;
xmlNodePtr node;
xmlErrorLevel level;
xmlParserInputPtr input = NULL;
xmlParserInputPtr cur = NULL;
if (err == NULL)
return;
if (channel == NULL) { // TODO: LOGGING: setup Symbian specific logger callback here
channel = xmlGenericError;
data = xmlGenericErrorContext;
}
file = err->file;
#ifdef LIBXML_ENABLE_NODE_LINEINFO
line = err->line;
#endif
code = err->code;
domain = err->domain;
level = err->level;
node = (xmlNodePtr)err->node;
if (code == XML_ERR_OK)
return;
if ((node != NULL) && (node->type == XML_ELEMENT_NODE))
name = node->name;
/*
* Maintain the compatibility with the legacy error handling
*/
if (ctxt != NULL) {
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) &&
(ctxt->inputNr > 1)) {
cur = input;
input = ctxt->inputTab[ctxt->inputNr - 2];
}
if (input != NULL) {
if (input->filename)
channel(data, "%s:%d: ", input->filename, input->line);
else if ((line != 0) && (domain == XML_FROM_PARSER))
channel(data, "Entity: line %d: ", input->line);
}
} else {
if (file != NULL)
channel(data, "%s:%d: ", file, line);
else if ((line != 0) && (domain == XML_FROM_PARSER))
channel(data, "Entity: line %d: ", line);
}
if (name != NULL) {
channel(data, "element %s: ", name);
}
if (code == XML_ERR_OK)
return;
switch (domain) {
case XML_FROM_PARSER:
channel(data, "parser ");
break;
case XML_FROM_NAMESPACE:
channel(data, "namespace ");
break;
case XML_FROM_DTD:
case XML_FROM_VALID:
channel(data, "validity ");
break;
case XML_FROM_HTML:
channel(data, "HTML parser ");
break;
case XML_FROM_MEMORY:
channel(data, "memory ");
break;
case XML_FROM_OUTPUT:
channel(data, "output ");
break;
case XML_FROM_IO:
channel(data, "I/O ");
break;
case XML_FROM_XINCLUDE:
channel(data, "XInclude ");
break;
case XML_FROM_XPATH:
channel(data, "XPath ");
break;
case XML_FROM_XPOINTER:
channel(data, "parser ");
break;
case XML_FROM_REGEXP:
channel(data, "regexp ");
break;
case XML_FROM_SCHEMASV:
channel(data, "Schemas validity ");
break;
case XML_FROM_SCHEMASP:
channel(data, "Schemas parser ");
break;
case XML_FROM_RELAXNGP:
channel(data, "Relax-NG parser ");
break;
case XML_FROM_RELAXNGV:
channel(data, "Relax-NG validity ");
break;
case XML_FROM_CATALOG:
channel(data, "Catalog ");
break;
case XML_FROM_C14N:
channel(data, "C14N ");
break;
case XML_FROM_XSLT:
channel(data, "XSLT ");
break;
default:
break;
}
if (code == XML_ERR_OK)
return;
switch (level) {
case XML_ERR_NONE:
channel(data, ": ");
break;
case XML_ERR_WARNING:
channel(data, "warning : ");
break;
case XML_ERR_ERROR:
channel(data, "error : ");
break;
case XML_ERR_FATAL:
channel(data, "error : ");
break;
}
if (code == XML_ERR_OK)
return;
if (str != NULL) {
int len;
len = xmlStrlen((const xmlChar *)str);
if ((len > 0) && (str[len - 1] != '\n'))
channel(data, "%s\n", str);
else
channel(data, "%s", str);
} else {
channel(data, "%s\n", "out of memory error");
}
if (code == XML_ERR_OK)
return;
if (ctxt != NULL) {
xmlParserPrintFileContextInternal(input, channel, data);
if (cur != NULL) {
if (cur->filename)
channel(data, "%s:%d: \n", cur->filename, cur->line);
else if ((line != 0) && (domain == XML_FROM_PARSER))
channel(data, "Entity: line %d: \n", cur->line);
xmlParserPrintFileContextInternal(cur, channel, data);
}
}
if ((domain == XML_FROM_XPATH) &&
(err->str1 != NULL) &&
(err->int1 < 100) &&
(err->int1 < xmlStrlen((const xmlChar *)err->str1)))
{
// TODO: buffers on the stack - maybe dangerous on Symbian!
xmlChar buf[150];
int i;
channel(data, "%s\n", err->str1);
for (i=0;i < err->int1;i++)
buf[i] = ' ';
buf[i++] = '^';
buf[i] = 0;
channel(data, "%s\n", buf);
}
}
/**
* __xmlRaiseError:
* @schannel: the structured callback channel
* @channel: the old callback channel
* @data: the callback data
* @ctx: the parser context or NULL
* @ctx: the parser context or NULL
* @domain: the domain for the error
* @code: the code for the error
* @level: the xmlErrorLevel for the error
* @file: the file source of the error (or NULL)
* @line: the line of the error or 0 if N/A
* @str1: extra string info
* @str2: extra string info
* @str3: extra string info
* @int1: extra int info
* @int2: extra int info
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Update the appropriate global or contextual error structure,
* then forward the error message down the parser or generic
* error callback handler
*/
void
__xmlRaiseError(xmlStructuredErrorFunc schannel,
xmlGenericErrorFunc channel, void *data, void *ctx,
void *nod, int domain, int code, xmlErrorLevel level,
const char *file, int line, const char *str1,
const char *str2, const char *str3, int int1, int int2,
const char *msg, ...)
{
xmlParserCtxtPtr ctxt = NULL;
xmlNodePtr node = (xmlNodePtr) nod;
char *str = NULL;
xmlParserInputPtr input = NULL;
xmlErrorPtr to = &xmlLastError;
xmlChar *base = NULL;
// XMLENGINE: BEGIN NEW CODE
if(domain == XML_FROM_XPATH)
return; // no output, just return NULL
// XMLENGINE: END NEW CODE
if ((xmlGetWarningsDefaultValue == 0) && (level == XML_ERR_WARNING))
return;
if ((domain == XML_FROM_PARSER) ||
(domain == XML_FROM_HTML) || // TODO: Remove HTML-related code
(domain == XML_FROM_DTD) ||
(domain == XML_FROM_NAMESPACE) ||
(domain == XML_FROM_IO))
{
ctxt = (xmlParserCtxtPtr) ctx;
if ((schannel == NULL) && (ctxt != NULL) &&
(ctxt->sax != NULL)&& (ctxt->sax->initialized == XML_SAX2_MAGIC))
schannel = ctxt->sax->serror;
}
if (schannel == NULL)
schannel = xmlStructuredError;
if ((domain == XML_FROM_VALID) &&
((channel == xmlParserValidityError) || (channel == xmlParserValidityWarning)))
{
ctxt = (xmlParserCtxtPtr) ctx;
if ((schannel == NULL) &&
(ctxt != NULL) &&
(ctxt->sax != NULL) &&
(ctxt->sax->initialized == XML_SAX2_MAGIC))
{
schannel = ctxt->sax->serror;
}
}
if (code == XML_ERR_OK)
return;
/*
* Formatting the message
*/
#ifndef XMLENGINE_EXCLUDE_EMBED_MSG
if (msg == NULL) {
#else
if (msg == NULL || msg == __embedded_errtxt_replacement) {
#endif
str = (char *) xmlStrdup(BAD_CAST "No error message provided");
} else {
//XML_GET_VAR_STR(msg, str); //this causes panic when OOM
str = (char *) xmlStrdup(BAD_CAST msg);
}
/*
* specific processing if a parser context is provided
*/
if (ctxt != NULL) {
if (file == NULL) {
input = ctxt->input;
if ((input != NULL) &&
(input->filename == NULL) &&
(ctxt->inputNr > 1))
{
input = ctxt->inputTab[ctxt->inputNr - 2];
}
if (input != NULL) {
file = input->filename;
line = input->line;
}
}
to = &ctxt->lastError;
} else if ((node != NULL) && (file == NULL)) {
int i;
if ((node->doc != NULL) && (node->doc->URL != NULL))
base = xmlStrdup(node->doc->URL);
for (i = 0;
((i < 10) && (node != NULL) && (node->type != XML_ELEMENT_NODE));
i++)
node = node->parent;
if ((base == NULL) && (node != NULL) &&
(node->doc != NULL) && (node->doc->URL != NULL))
{
base = xmlStrdup(node->doc->URL);
}
#ifdef LIBXML_ENABLE_NODE_LINEINFO
if ((node != NULL) && (node->type == XML_ELEMENT_NODE))
line = node->line;
#endif
}
/*
* Save the information about the error
*/
xmlResetError(to);
to->domain = domain;
to->code = code;
to->message = str;
to->level = level;
if (file != NULL)
to->file = (char *) xmlStrdup((const xmlChar *) file);
else if (base != NULL) {
to->file = (char *) base;
file = (char *) base;
}
#ifdef LIBXML_ENABLE_NODE_LINEINFO
to->line = line;
#endif
if (str1)
to->str1 = (char *) xmlStrdup((const xmlChar *) str1);
if (str2)
to->str2 = (char *) xmlStrdup((const xmlChar *) str2);
if (str3)
to->str3 = (char *) xmlStrdup((const xmlChar *) str3);
to->int1 = int1;
to->int2 = int2;
to->node = node;
to->ctxt = ctx;
if (to != &xmlLastError) { xmlResetError(&xmlLastError);
xmlCopyError(to,&xmlLastError); }
/*
* Find the callback channel.
*/
if ((ctxt != NULL) &&
(channel == NULL) &&
(xmlStructuredError == NULL))
{
if (level == XML_ERR_WARNING)
channel = ctxt->sax->warning;
else
channel = ctxt->sax->error;
data = ctxt->userData;
} else {
if (channel == NULL) {
if (xmlStructuredError != NULL)
schannel = xmlStructuredError;
else
channel = xmlGenericError;
data = xmlGenericErrorContext;
}
}
if (schannel != NULL) {
schannel(data, to);
return;
}
if (channel == NULL)
return;
if ((channel == xmlParserError) ||
(channel == xmlParserWarning) ||
(channel == xmlParserValidityError) ||
(channel == xmlParserValidityWarning))
{
xmlReportError(to, ctxt, str, NULL, NULL);
}
else
{
if ((channel == (xmlGenericErrorFunc) fprintf) ||
(channel == xmlGenericErrorDefaultFunc))
xmlReportError(to, ctxt, str, channel, data);
else
channel(data, "%s", str);
}
}
/**
* __xmlSimpleError:
* @domain: where the error comes from
* @code: the error code
* @node: the context node
* @extra: extra informations
*
* Handle an out of memory condition
*/
void
__xmlSimpleError(int domain, int code, xmlNodePtr node,
const char *msg, const char *extra)
{
// TODO: OPTIMIZE: Combine all 3 calls into one
if (code == XML_ERR_NO_MEMORY) {
if (extra)
__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
NULL, NULL, 0, 0,
EMBED_ERRTXT("Memory allocation failed : %s\n"), extra);
else
__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
NULL, NULL, 0, 0, EMBED_ERRTXT("Memory allocation failed\n"));
} else {
__xmlRaiseError(NULL, NULL, NULL, NULL, node, domain,
code, XML_ERR_ERROR, NULL, 0, extra,
NULL, NULL, 0, 0, msg, extra);
}
}
/**
* xmlParserError:
* @ctx: an XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format an error messages, gives file, line, position and
* extra parameters.
*/
void
xmlParserError(void *ctx, const char *msg, ...)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlParserInputPtr input = NULL;
xmlParserInputPtr cur = NULL;
char * str;
if (ctxt != NULL) {
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) &&
(ctxt->inputNr > 1)) {
cur = input;
input = ctxt->inputTab[ctxt->inputNr - 2];
}
xmlParserPrintFileInfo(input);
}
xmlGenericError(xmlGenericErrorContext, "error: ");
XML_GET_VAR_STR(msg, str);
xmlGenericError(xmlGenericErrorContext, "%s", str);
if (str != NULL)
xmlFree(str);
if (ctxt != NULL) {
xmlParserPrintFileContext(input);
if (cur != NULL) {
xmlParserPrintFileInfo(cur);
xmlGenericError(xmlGenericErrorContext, "\n");
xmlParserPrintFileContext(cur);
}
}
}
/**
* xmlParserWarning:
* @ctx: an XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a warning messages, gives file, line, position and
* extra parameters.
*/
void
xmlParserWarning(void *ctx, const char *msg, ...)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlParserInputPtr input = NULL;
xmlParserInputPtr cur = NULL;
char * str;
if (ctxt != NULL) {
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) &&
(ctxt->inputNr > 1)) {
cur = input;
input = ctxt->inputTab[ctxt->inputNr - 2];
}
xmlParserPrintFileInfo(input);
}
xmlGenericError(xmlGenericErrorContext, EMBED_ERRTXT("warning: "));
XML_GET_VAR_STR(msg, str);
xmlGenericError(xmlGenericErrorContext, "%s", str);
if (str != NULL)
xmlFree(str);
if (ctxt != NULL) {
xmlParserPrintFileContext(input);
if (cur != NULL) {
xmlParserPrintFileInfo(cur);
xmlGenericError(xmlGenericErrorContext, "\n");
xmlParserPrintFileContext(cur);
}
}
}
/************************************************************************
* *
* Handling of validation errors *
* *
************************************************************************/
/**
* xmlParserValidityError:
* @ctx: an XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format an validity error messages, gives file,
* line, position and extra parameters.
*/
void
xmlParserValidityError(void *ctx, const char *msg, ...)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlParserInputPtr input = NULL;
char * str;
int len = xmlStrlen((const xmlChar *) msg);
if ((len > 1) && (msg[len - 2] != ':')) {
if (ctxt != NULL) {
input = ctxt->input;
if ((input->filename == NULL) && (ctxt->inputNr > 1))
input = ctxt->inputTab[ctxt->inputNr - 2];
if (had_info == 0) {
xmlParserPrintFileInfo(input);
}
}
xmlGenericError(xmlGenericErrorContext, EMBED_ERRTXT("validity error: "));
had_info = 0;
} else {
had_info = 1;
}
XML_GET_VAR_STR(msg, str);
xmlGenericError(xmlGenericErrorContext, "%s", str);
if (str != NULL)
xmlFree(str);
if ((ctxt != NULL) && (input != NULL)) {
xmlParserPrintFileContext(input);
}
}
/**
* xmlParserValidityWarning:
* @ctx: an XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a validity warning messages, gives file, line,
* position and extra parameters.
*/
void
xmlParserValidityWarning(void *ctx, const char *msg, ...)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlParserInputPtr input = NULL;
char * str;
int len = xmlStrlen((const xmlChar *) msg);
if ((ctxt != NULL) && (len != 0) && (msg[len - 1] != ':')) {
input = ctxt->input;
if ((input->filename == NULL) && (ctxt->inputNr > 1))
input = ctxt->inputTab[ctxt->inputNr - 2];
xmlParserPrintFileInfo(input);
}
xmlGenericError(xmlGenericErrorContext, EMBED_ERRTXT("validity warning: "));
XML_GET_VAR_STR(msg, str);
xmlGenericError(xmlGenericErrorContext, "%s", str);
if (str != NULL)
xmlFree(str);
if (ctxt != NULL) {
xmlParserPrintFileContext(input);
}
}
/************************************************************************
* *
* Extended Error Handling *
* *
************************************************************************/
/**
* xmlGetLastError:
*
* Get the last global error registered. This is per thread if compiled
* with thread support.
*
* Returns NULL if no error occured or a pointer to the error
*/
xmlErrorPtr
xmlGetLastError(void)
{
if (xmlLastError.code == XML_ERR_OK)
return (NULL);
return (&xmlLastError);
}
/**
* xmlResetError:
* @err: pointer to the error.
*
* Cleanup the error.
*
* OOM: never
*/
void
xmlResetError(xmlErrorPtr err)
{
if (err == NULL)
return;
if (err->code == XML_ERR_OK)
return;
if (err->message != NULL)
xmlFree(err->message);
if (err->file != NULL)
xmlFree(err->file);
if (err->str1 != NULL)
xmlFree(err->str1);
if (err->str2 != NULL)
xmlFree(err->str2);
if (err->str3 != NULL)
xmlFree(err->str3);
memset(err, 0, sizeof(xmlError));
err->code = XML_ERR_OK;
}
/**
* xmlResetLastError:
*
* Cleanup the last global error registered. For parsing error
* this does not change the well-formedness result.
*
* OOM: never
*/
void
xmlResetLastError(void)
{
if (xmlLastError.code == XML_ERR_OK)
return;
xmlResetError(&xmlLastError);
}
/**
* xmlCtxtGetLastError:
* @ctx: an XML parser context
*
* Get the last parsing error registered.
*
* Returns NULL if no error occured or a pointer to the error
*/
xmlErrorPtr
xmlCtxtGetLastError(void *ctx)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
if (ctxt == NULL)
return (NULL);
if (ctxt->lastError.code == XML_ERR_OK)
return (NULL);
return (&ctxt->lastError);
}
/**
* xmlCtxtResetLastError:
* @ctx: an XML parser context
*
* Cleanup the last global error registered. For parsing error
* this does not change the well-formedness result.
*/
void
xmlCtxtResetLastError(void *ctx)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
if (ctxt == NULL)
return;
if (ctxt->lastError.code == XML_ERR_OK)
return;
xmlResetError(&ctxt->lastError);
}
/**
* xmlCopyError:
* @from: a source error
* @to: a target error
*
* Save the original error to the new place.
*
* Returns 0 in case of success and -1 in case of error.
*/
int
xmlCopyError(xmlErrorPtr from, xmlErrorPtr to) {
if ((from == NULL) || (to == NULL))
return(-1);
if (to->message != NULL)
xmlFree(to->message);
if (to->file != NULL)
xmlFree(to->file);
if (to->str1 != NULL)
xmlFree(to->str1);
if (to->str2 != NULL)
xmlFree(to->str2);
if (to->str3 != NULL)
xmlFree(to->str3);
to->domain = from->domain;
to->code = from->code;
to->level = from->level;
#ifdef LIBXML_ENABLE_NODE_LINEINFO
to->line = from->line;
#endif
to->node = from->node;
to->int1 = from->int1;
to->int2 = from->int2;
to->node = from->node;
to->ctxt = from->ctxt;
if (from->message != NULL)
to->message = (char *) xmlStrdup((xmlChar *) from->message);
else
to->message = NULL;
if (from->file != NULL)
to->file = (char *) xmlStrdup((xmlChar *) from->file);
else
to->file = NULL;
if (from->str1 != NULL)
to->str1 = (char *) xmlStrdup((xmlChar *) from->str1);
else
to->str1 = NULL;
if (from->str2 != NULL)
to->str2 = (char *) xmlStrdup((xmlChar *) from->str2);
else
to->str2 = NULL;
if (from->str3 != NULL)
to->str3 = (char *) xmlStrdup((xmlChar *) from->str3);
else
to->str3 = NULL;
return(0);
}