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/*
* error.c: module displaying/handling XML parser errors
*
* See Copyright for the status of this software.
*
* Daniel Veillard <Daniel.Veillard@w3.org>
*/
#ifdef WIN32
#include "win32config.h"
#else
#include "config.h"
#endif
#include <stdio.h>
#include <stdarg.h>
#include "parser.h"
/**
* 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)
fprintf(stderr, "%s:%d: ", input->filename,
input->line);
else
fprintf(stderr, "Entity: line %d: ", input->line);
}
}
/**
* xmlParserPrintFileContext:
* @input: an xmlParserInputPtr input
*
* Displays current context within the input content for error tracking
*/
void
xmlParserPrintFileContext(xmlParserInputPtr input) {
const xmlChar *cur, *base;
int n;
if (input == NULL) return;
cur = input->cur;
base = input->base;
while ((cur > base) && ((*cur == '\n') || (*cur == '\r'))) {
cur--;
}
n = 0;
while ((n++ < 80) && (cur > base) && (*cur != '\n') && (*cur != '\r'))
cur--;
if ((*cur == '\n') || (*cur == '\r')) cur++;
base = cur;
n = 0;
while ((*cur != 0) && (*cur != '\n') && (*cur != '\r') && (n < 79)) {
fprintf(stderr, "%c", (unsigned char) *cur++);
n++;
}
fprintf(stderr, "\n");
cur = input->cur;
while ((*cur == '\n') || (*cur == '\r'))
cur--;
n = 0;
while ((cur != base) && (n++ < 80)) {
fprintf(stderr, " ");
base++;
}
fprintf(stderr,"^\n");
}
/**
* 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;
xmlParserInputPtr cur = NULL;
va_list args;
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) && (ctxt->inputNr > 1)) {
cur = input;
input = ctxt->inputTab[ctxt->inputNr - 2];
}
xmlParserPrintFileInfo(input);
fprintf(stderr, "error: ");
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
xmlParserPrintFileContext(input);
if (cur != NULL) {
xmlParserPrintFileInfo(cur);
fprintf(stderr, "\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;
xmlParserInputPtr cur = NULL;
va_list args;
input = ctxt->input;
if ((input != NULL) && (input->filename == NULL) && (ctxt->inputNr > 1)) {
cur = input;
input = ctxt->inputTab[ctxt->inputNr - 2];
}
xmlParserPrintFileInfo(input);
fprintf(stderr, "warning: ");
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
xmlParserPrintFileContext(input);
if (cur != NULL) {
xmlParserPrintFileInfo(cur);
fprintf(stderr, "\n");
xmlParserPrintFileContext(cur);
}
}
/**
* 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;
va_list args;
input = ctxt->input;
if ((input->filename == NULL) && (ctxt->inputNr > 1))
input = ctxt->inputTab[ctxt->inputNr - 2];
xmlParserPrintFileInfo(input);
fprintf(stderr, "validity error: ");
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
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;
va_list args;
input = ctxt->input;
if ((input->filename == NULL) && (ctxt->inputNr > 1))
input = ctxt->inputTab[ctxt->inputNr - 2];
xmlParserPrintFileInfo(input);
fprintf(stderr, "validity warning: ");
va_start(args, msg);
vfprintf(stderr, msg, args);
va_end(args);
xmlParserPrintFileContext(input);
}
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