strsep.c
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上传日期:2013-06-12
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文件大小:2k
- /*
- * Copyright (C) 2002 Ross Combs (rocombs@cs.nmsu.edu)
- *
- * 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 2
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- #include "common/setup_before.h"
- #ifndef HAVE_STRSEP
- #ifdef HAVE_STRING_H
- # include <string.h>
- #else
- # ifdef HAVE_STRINGS_H
- # include <strings.h>
- # endif
- #endif
- #include "compat/strchr.h"
- #include "strsep.h"
- #include "common/setup_after.h"
- extern char * strsep(char * * str, char const * delims)
- {
- char * begin;
- begin = *str;
-
- if (!begin)
- return NULL; /* already returned last token */
-
- /* FIXME: optimiz case of 1 char delims (maybe not worth the effort) */
- for (; **str!=' '; (*str)++)
- if (strchr(delims,**str))
- {
- **str = ' '; /* terminate token */
- (*str)++; /* remember the position of the next char */
- return begin;
- }
-
- *str = NULL;
- return begin; /* return the whole input string */
- }
- #else
- typedef int filenotempty; /* make ISO standard happy */
- #endif