glibc/sysdeps/generic/strsep.c
Ulrich Drepper b61345a1ad Update.
2001-10-04  Ben Collins  <bcollins@debian.org>

	* sysdeps/generic/inttypes.h: Fix typo (define, not defined) in
	decleration of __need_wchar_t.

2001-10-03  Jakub Jelinek  <jakub@redhat.com>

	* string/bits/string2.h (__strsep_g): Add prototype.
	(__strsep): Use it.
	* string/Versions (__strsep): Remove.
	* sysdeps/generic/strsep.c (__strsep_g): Add alias to __strsep.

2001-10-07  Ulrich Drepper  <drepper@redhat.com>

	* manua/llio.texi: Clarify file references added by mmap.
	Patch by Marcus Brinkmann <Marcus.Brinkmann@ruhr-uni-bochum.de>.
2001-10-07 20:26:31 +00:00

70 lines
1.8 KiB
C

/* Copyright (C) 1992, 93, 96, 97, 98, 99 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>
#undef __strsep
#undef strsep
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;
}
weak_alias (__strsep, strsep)
strong_alias (__strsep, __strsep_g)