strsep.c
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上传日期:2013-05-12
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- /* Copyright (C) 1992, 1993, 1996, 1997 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
- #include <string.h>
- char *
- strsep (char **stringp, const char *delim)
- {
- char *begin, *end;
- begin = *stringp;
- if (! begin || *begin == ' ')
- return NULL;
- /* Find the end of the token. */
- end = strpbrk (begin, delim);
- if (end)
- {
- /* Terminate the token and set *STRINGP past NUL character. */
- *end++ = ' ';
- *stringp = end;
- }
- else
- /* No more delimiters; this is the last token. */
- *stringp = NULL;
- return begin;
- }