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/*
* blogc: A blog compiler.
* Copyright (C) 2015 Rafael G. Martins <rafael@rafaelmartins.eng.br>
*
* This program can be distributed under the terms of the BSD License.
* See the file LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "utils/utils.h"
#include "error.h"
blogc_error_t*
blogc_error_new(blogc_error_type_t type, const char *msg)
{
blogc_error_t *err = b_malloc(sizeof(blogc_error_t));
err->type = type;
err->msg = b_strdup(msg);
return err;
}
blogc_error_t*
blogc_error_new_printf(blogc_error_type_t type, const char *format, ...)
{
va_list ap;
va_start(ap, format);
char *tmp = b_strdup_vprintf(format, ap);
va_end(ap);
blogc_error_t *rv = blogc_error_new(type, tmp);
free(tmp);
return rv;
}
blogc_error_t*
blogc_error_parser(blogc_error_type_t type, const char *src, size_t src_len,
size_t current, const char *format, ...)
{
va_list ap;
va_start(ap, format);
char *msg = b_strdup_vprintf(format, ap);
va_end(ap);
b_string_t *str = b_string_new();
while (current < src_len) {
char c = src[current];
if (c == '\r' || c == '\n')
break;
b_string_append_c(str, c);
current++;
}
char *line = b_string_free(str, false);
blogc_error_t *rv = NULL;
if (strlen(line) == 0) // "near to" message isn't useful if line is empty
rv = blogc_error_new(type, msg);
else
rv = blogc_error_new_printf(type,
"%s\nError occurred near to '%s'", msg, line);
free(msg);
free(line);
return rv;
}
void
blogc_error_print(blogc_error_t *err)
{
if (err == NULL)
return;
switch(err->type) {
case BLOGC_ERROR_SOURCE_PARSER:
fprintf(stderr, "Source parser error: %s\n", err->msg);
break;
case BLOGC_ERROR_TEMPLATE_PARSER:
fprintf(stderr, "Template parser error: %s\n", err->msg);
break;
case BLOGC_ERROR_LOADER:
fprintf(stderr, "Loader error: %s\n", err->msg);
break;
default:
fprintf(stderr, "Unknown error: %s\n", err->msg);
}
}
void
blogc_error_free(blogc_error_t *err)
{
if (err == NULL)
return;
free(err->msg);
free(err);
}
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