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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <wchar.h>
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#include <errno.h>
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/* Parse WCS into tokens separated by characters in DELIM. If WCS is
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NULL, the last string wcstok() was called with is used. */
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wchar_t *
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wcstok (wcs, delim, save_ptr)
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wchar_t *wcs;
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const wchar_t *delim;
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wchar_t **save_ptr;
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{
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wchar_t *result;
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if (wcs == NULL)
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{
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if (*save_ptr == NULL)
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{
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__set_errno (EINVAL);
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return NULL;
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}
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else
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wcs = *save_ptr;
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}
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/* Scan leading delimiters. */
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wcs += wcsspn (wcs, delim);
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if (*wcs == L'\0')
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{
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*save_ptr = NULL;
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return NULL;
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}
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/* Find the end of the token. */
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result = wcs;
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wcs = wcspbrk (result, delim);
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if (wcs == NULL)
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/* This token finishes the string. */
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*save_ptr = NULL;
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else
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{
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/* Terminate the token and make *SAVE_PTR point past it. */
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*wcs = L'\0';
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*save_ptr = wcs + 1;
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}
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return result;
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}
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