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/* ----------------------------------------------------------------------- *
*
* Copyright 2011 Erwan Velu - All Rights Reserved
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall
* be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* -----------------------------------------------------------------------
*/
#include <string.h>
#include <stdlib.h>
char *strreplace(const char *string, const char *string_to_replace,
const char *string_to_insert)
{
char *token = NULL;
char *out = NULL;
size_t slen, srlen, silen;
token = strstr(string, string_to_replace);
if (!token)
return strdup(string);
slen = strlen(string);
srlen = strlen(string_to_replace);
silen = strlen(string_to_insert);
out = malloc(slen - srlen + silen + 1);
if (!out)
return NULL;
memcpy(out, string, token - string);
memcpy(out + (token - string), string_to_insert, silen);
memcpy(out + (token - string) + silen, token + srlen,
slen - srlen - (token - string) + 1);
return out;
}
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