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/*
* Gregorio is a program that translates gabc files to GregorioTeX
* This file contains miscellaneous support functions.
*
* Copyright (C) 2015 The Gregorio Project (see CONTRIBUTORS.md)
*
* This file is part of Gregorio.
*
* Gregorio 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 3 of the License, or
* (at your option) any later version.
*
* Gregorio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Gregorio. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "support.h"
#include "messages.h"
/* Our version of snprintf; this is NOT semantically the same as C99's
* snprintf; rather, it's a "lowest common denominator" implementation
* blending C99 and MS-C */
void gregorio_snprintf(char *s, size_t size, const char *format, ...)
{
va_list args;
#ifdef _MSC_VER
memset(s, 0, size);
#endif
va_start(args, format);
#ifdef _MSC_VER
_vsnprintf_s(s, size, _TRUNCATE, format, args);
#else
vsnprintf(s, size, format, args);
#endif
va_end(args);
}
void *gregorio_malloc(size_t size)
{
void *result = malloc(size);
if (!result) {
gregorio_message(_("error in memory allocation"),
"gregorio_malloc", VERBOSITY_FATAL, 0);
exit(1);
}
return result;
}
void *gregorio_calloc(size_t nmemb, size_t size)
{
void *result = calloc(nmemb, size);
if (!result) {
gregorio_message(_("error in memory allocation"),
"gregorio_calloc", VERBOSITY_FATAL, 0);
exit(1);
}
return result;
}
void *gregorio_realloc(void *ptr, size_t size)
{
void *result = realloc(ptr, size);
if (!result) {
gregorio_message(_("error in memory allocation"),
"gregorio_realloc", VERBOSITY_FATAL, 0);
exit(1);
}
return result;
}
char *gregorio_strdup(const char *s)
{
char *result = strdup(s);
if (!result) {
gregorio_message(_("error in memory allocation"),
"gregorio_strdup", VERBOSITY_FATAL, 0);
exit(1);
}
return result;
}
bool gregorio_readline(char **buf, size_t *bufsize, FILE *file)
{
size_t oldsize;
if (*buf == NULL) {
*bufsize = 128;
*buf = (char *)gregorio_malloc(*bufsize);
} else {
if (*bufsize < 128) {
gregorio_message(_("invalid buffer size"), "gregorio_getline",
VERBOSITY_FATAL, 0);
exit(1);
}
}
(*buf)[0] = '\0';
oldsize = 1;
for (;;) {
(*buf)[*bufsize - 2] = '\0';
if (feof(file) || ferror(file)
|| !fgets((*buf) + oldsize - 1, (int)(*bufsize - oldsize + 1),
file)
|| (*buf)[*bufsize - 2] == '\0') {
if (ferror(file)) {
gregorio_message(_("Error reading from the file"),
"gregorio_getline", VERBOSITY_FATAL, 0);
exit(1);
}
return (*buf)[0] != '\0';
}
if (*bufsize >= MAX_BUF_GROWTH) {
gregorio_message(_("Line too long"), "gregorio_getline",
VERBOSITY_FATAL, 0);
exit(1);
}
oldsize = *bufsize;
*bufsize <<= 1;
*buf = gregorio_realloc(*buf, *bufsize);
}
}
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