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/*
* error.c - Error reporting
*
* Written 2009, 2010 by Werner Almesberger
* Copyright 2009, 2010 by Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include "util.h"
#include "error.h"
extern char *yytext;
int lineno = 1;
void (*reporter)(const char *s) = report_to_stderr;
void yywarn(const char *s)
{
/* we use yywarn only when starting */
fprintf(stderr, "%d: warning: %s near \"%s\"\n", lineno, s, yytext);
}
void yyerrorf(const char *fmt, ...)
{
va_list ap;
char *buf;
int n;
va_start(ap, fmt);
n = vsnprintf(NULL, 0, fmt, ap);
va_end(ap);
buf = alloc_size(n+1);
va_start(ap, fmt);
vsnprintf(buf, n+1, fmt, ap);
va_end(ap);
fail("%s", buf);
free(buf);
}
void yyerror(const char *s)
{
yyerrorf("%s", s);
}
void report_parse_error(const char *s)
{
fprintf(stderr, "%d: %s near \"%s\"\n", lineno, s, yytext);
exit(1);
}
void report_to_stderr(const char *s)
{
fprintf(stderr, "%s\n", s);
exit(1);
}
void fail(const char *fmt, ...)
{
va_list ap;
char *s;
va_start(ap, fmt);
s = stralloc_vprintf(fmt, ap);
va_end(ap);
reporter(s);
free(s);
}
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