lib/strsep.c

   1 /* Copyright (C) 1992, 1993, 1996 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17 Boston, MA 02111-1307, USA.  */
  18
  19 #include "../include/sane/config.h"
  20
  21 #include <string.h>
  22
  23 #ifndef HAVE_STRSEP
  24
  25 char *
  26 strsep (char **stringp, const char *delim)
  27 {
  28   char *begin, *end;
  29
  30   begin = *stringp;
  31   if (! begin || *begin == '\0')
  32     return NULL;
  33
  34   /* Find the end of the token.  */
  35   end = strpbrk (begin, delim);
  36   if (end)
  37     {
  38       /* Terminate the token and set *STRINGP past NUL character.  */
  39       *end++ = '\0';
  40       *stringp = end;
  41     }
  42   else
  43     /* No more delimiters; this is the last token.  */
  44     *stringp = NULL;
  45
  46   return begin;
  47 }
  48
  49 #endif /* !HAVE_STRSEP */