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-.\"     $OpenBSD: wcstok.3,v 1.7 2011/07/25 00:38:53 schwarze Exp $
-.\"
-.\" $NetBSD: wcstok.3,v 1.3 2003/09/08 17:54:33 wiz Exp $
-.\"
-.\" Copyright (c) 1998 Softweyr LLC.  All rights reserved.
-.\"
-.\" strtok_r, from Berkeley strtok
-.\" Oct 13, 1998 by Wes Peters <wes@softweyr.com>
-.\"
-.\" Copyright (c) 1988, 1991, 1993
-.\"     The Regents of the University of California.  All rights reserved.
-.\"
-.\" This code is derived from software contributed to Berkeley by
-.\" the American National Standards Committee X3, on Information
-.\" Processing Systems.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\"
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notices, this list of conditions and the following disclaimer.
-.\"
-.\" 2. Redistributions in binary form must reproduce the above
-.\"    copyright notices, this list of conditions and the following
-.\"    disclaimer in the documentation and/or other materials provided
-.\"    with the distribution.
-.\"
-.\" 3. All advertising materials mentioning features or use of this
-.\"    software must display the following acknowledgement:
-.\"
-.\"     This product includes software developed by Softweyr LLC, the
-.\"      University of California, Berkeley, and its contributors.
-.\"
-.\" 4. Neither the name of Softweyr LLC, the University nor the names
-.\"    of its contributors may be used to endorse or promote products
-.\"    derived from this software without specific prior written
-.\"    permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND
-.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
-.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-.\" DISCLAIMED.  IN NO EVENT SHALL SOFTWEYR LLC, THE REGENTS, OR
-.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
-.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" Original version ID:
-.\" FreeBSD: src/lib/libc/string/wcstok.3,v 1.4 2002/10/15 09:49:54 tjr Exp
-.\"
-.Dd $Mdocdate: July 25 2011 $
-.Dt WCSTOK 3
-.Os
-.Sh NAME
-.Nm wcstok
-.Nd split wide-character string into tokens
-.Sh SYNOPSIS
-.In wchar.h
-.Ft wchar_t *
-.Fn wcstok "wchar_t * restrict str" "const wchar_t * restrict sep" "wchar_t ** restrict last"
-.Sh DESCRIPTION
-The
-.Fn wcstok
-function
-is used to isolate sequential tokens in a NUL-terminated wide-character
-string,
-.Fa str .
-These tokens are separated in the string by at least one of the
-characters in
-.Fa sep .
-The first time that
-.Fn wcstok
-is called,
-.Fa str
-should be specified; subsequent calls, wishing to obtain further tokens
-from the same string, should pass a null pointer instead.
-The separator string,
-.Fa sep ,
-must be supplied each time, and may change between calls.
-The context pointer
-.Fa last
-must be provided on each call.
-.Pp
-The
-.Fn wcstok
-function is the wide-character counterpart of the
-.Xr strtok_r 3
-function.
-.Pp
-Since
-.Fn wcstok
-modifies the string,
-.Fa str
-should not point to an area in the initialized data segment.
-.Sh RETURN VALUES
-The
-.Fn wcstok
-function
-returns a pointer to the beginning of each subsequent token in the string,
-after replacing the token itself with a NUL wide character (L'\e0').
-When no more tokens remain, a null pointer is returned.
-.Sh EXAMPLES
-The following code fragment splits a wide-character string on
-.Tn ASCII
-space, tab, and newline characters and writes the tokens to
-standard output:
-.Bd -literal -offset indent
-const wchar_t *seps = L" \et\en";
-wchar_t *last, *tok, text[] = L" \enone\ettwo\et\etthree  \en";
-
-for (tok = wcstok(text, seps, &last); tok != NULL;
-    tok = wcstok(NULL, seps, &last))
-        wprintf(L"%ls\en", tok);
-.Ed
-.Sh SEE ALSO
-.Xr strtok 3 ,
-.Xr wcschr 3 ,
-.Xr wcscspn 3 ,
-.Xr wcspbrk 3 ,
-.Xr wcsrchr 3 ,
-.Xr wcsspn 3 ,
-.Xr wcsstr 3 ,
-.Xr wmemchr 3
-.Sh STANDARDS
-The
-.Fn wcstok
-function
-conforms to
-.St -isoC-99 .
-.Sh HISTORY
-The
-.Fn wcstok
-function was ported from
-.Nx
-and first appeared in
-.Ox 3.8 .
-.Pp
-Some early implementations of
-.Fn wcstok
-omit the
-context pointer argument,
-.Fa last ,
-and maintain state across calls in a static variable like
-.Xr strtok 3
-does.