glibc/sysdeps/generic/strsep.c

40 lines
1.2 KiB
C

/* Copyright (C) 1992, 1993 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <string.h>
char *
DEFUN(strsep, (stringp, delim),
char **stringp AND CONST char *delim)
{
char *begin, *end;
begin = *stringp + strspn (*stringp, delim);
end = *stringp + strcspn (*stringp, delim);
if (end == *stringp)
return NULL;
if (*end != '\0')
*end++ = '\0';
*stringp = end;
return begin;
}