darling-libxml2/error.c
1999-06-02 17:44:04 +00:00

121 lines
3.0 KiB
C

/*
* error.c: module displaying/handling XML parser errors
*
* See Copyright for the status of this software.
*
* Daniel Veillard <Daniel.Veillard@w3.org>
*/
#include <stdio.h>
#include <stdarg.h>
#include "parser.h"
/**
* 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;
const CHAR *cur, *base;
va_list args;
int n;
va_start(args, msg);
if (ctxt->input->filename)
fprintf(stderr, "%s:%d: ", ctxt->input->filename,
ctxt->input->line);
else
fprintf(stderr, "line %d: ", ctxt->input->line);
fprintf(stderr, "error: ");
vfprintf(stderr, msg, args);
va_end(args);
cur = ctxt->input->cur;
base = ctxt->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 = ctxt->input->cur;
while ((*cur == '\n') || (*cur == '\r'))
cur--;
n = 0;
while ((cur != base) && (n++ < 80)) {
fprintf(stderr, " ");
base++;
}
fprintf(stderr,"^\n");
}
/**
* 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;
const CHAR *cur, *base;
va_list args;
int n;
va_start(args, msg);
if (ctxt->input->filename)
fprintf(stderr, "%s:%d: ", ctxt->input->filename,
ctxt->input->line);
else
fprintf(stderr, "line %d: ", ctxt->input->line);
fprintf(stderr, "warning: ");
vfprintf(stderr, msg, args);
va_end(args);
cur = ctxt->input->cur;
base = ctxt->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 = ctxt->input->cur;
while ((*cur == '\n') || (*cur == '\r'))
cur--;
n = 0;
while ((cur != base) && (n++ < 80)) {
fprintf(stderr, " ");
base++;
}
fprintf(stderr,"^\n");
}