gimp/plug-ins/script-fu/script-fu-utils.c

70 lines
1.6 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <glib.h>
#include "script-fu-utils.h"
/*
* Escapes the special characters '\b', '\f', '\n', '\r', '\t', '\' and '"'
* in the string source by inserting a '\' before them.
*/
gchar *
script_fu_strescape (const gchar *source)
{
const guchar *p;
gchar *dest;
gchar *q;
g_return_val_if_fail (source != NULL, NULL);
p = (const guchar *) source;
/* Each source byte needs maximally two destination chars */
q = dest = g_malloc (strlen (source) * 2 + 1);
while (*p)
{
switch (*p)
{
case '\b':
case '\f':
case '\n':
case '\r':
case '\t':
case '\\':
case '"':
*q++ = '\\';
/* fallthrough */
default:
*q++ = *p;
break;
}
p++;
}
*q = 0;
return dest;
}