notmuch/util/string-util.c
David Bremner 9ff72a83bd util: add string-util.[ch]
This is to give a home to strtok_len. It's a bit silly to add a header
for one routine, but it needs to be shared between several compilation
units (or at least that's the most natural design).
2012-12-08 10:56:11 -04:00

34 lines
1 KiB
C

/* string-util.c - Extra or enhanced routines for null terminated strings.
*
* Copyright (c) 2012 Jani Nikula
*
* 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/ .
*
* Author: Jani Nikula <jani@nikula.org>
*/
#include "string-util.h"
char *
strtok_len (char *s, const char *delim, size_t *len)
{
/* skip initial delims */
s += strspn (s, delim);
/* length of token */
*len = strcspn (s, delim);
return *len ? s : NULL;
}