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| | /* Copyright (C) 1992, 93, 96, 97, 98, 99, 2004 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 Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the GNU C Library; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA. */
#include <string.h>
/* Taken from glibc 2.6.1 */
char *
strsep (char **stringp, const char *delim)
{
char *begin, *end;
begin = *stringp;
if (begin == NULL)
return NULL;
/* A frequent case is when the delimiter string contains only one
* character. Here we don't need to call the expensive `strpbrk'
* function and instead work using `strchr'. */
if (delim[0] == '\0' || delim[1] == '\0') {
char ch = delim[0];
if (ch == '\0')
end = NULL;
else {
if (*begin == ch)
end = begin;
else if (*begin == '\0')
end = NULL;
else
end = strchr (begin + 1, ch);
}
} else
/* Find the end of the token. */
end = strpbrk (begin, delim);
if (end) {
/* Terminate the token and set *STRINGP past NUL character. */
*end++ = '\0';
*stringp = end;
} else
/* No more delimiters; this is the last token. */
*stringp = NULL;
return begin;
}
|