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/*
File: unquote.c
Copyright (C) 2003 Andreas Gruenbacher <a.gruenbacher@bestbits.at>
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2.1 of the License, or (at
your option) any later version.
This program 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "misc.h"
char *unquote(char *str)
{
unsigned char *s, *t;
if (!str)
return str;
for (s = (unsigned char *)str; *s != '\0'; s++)
if (*s == '\\')
break;
if (*s == '\0')
return str;
#define isoctal(c) \
((c) >= '0' && (c) <= '7')
t = s;
do {
if (*s == '\\' &&
isoctal(*(s+1)) && isoctal(*(s+2)) && isoctal(*(s+3))) {
*t++ = ((*(s+1) - '0') << 6) +
((*(s+2) - '0') << 3) +
((*(s+3) - '0') );
s += 3;
} else
*t++ = *s;
} while (*s++ != '\0');
return str;
}
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