GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/string/wcstok.c Lines: 0 20 0.0 %
Date: 2017-11-13 Branches: 0 16 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: wcstok.c,v 1.3 2005/08/08 08:05:37 espie Exp $	*/
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/* $NetBSD: wcstok.c,v 1.3 2003/07/10 08:50:48 tshiozak Exp $ */
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/*-
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 * Copyright (c) 1998 Softweyr LLC.  All rights reserved.
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 *
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 * strtok_r, from Berkeley strtok
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 * Oct 13, 1998 by Wes Peters <wes@softweyr.com>
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 *
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 * Copyright (c) 1988, 1993
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notices, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notices, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *	This product includes software developed by Softweyr LLC, the
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 *      University of California, Berkeley, and its contributors.
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 * 4. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND CONTRIBUTORS
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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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 * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL SOFTWEYR LLC, THE
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 * REGENTS, OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * Original version ID:
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 * FreeBSD: src/lib/libc/string/wcstok.c,v 1.1 2002/09/07 08:16:57 tjr Exp
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 */
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#include <wchar.h>
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wchar_t *
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wcstok(wchar_t * __restrict s, const wchar_t * __restrict delim,
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    wchar_t ** __restrict last)
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{
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	const wchar_t *spanp;
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	wchar_t c, sc;
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	wchar_t *tok;
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	if (s == NULL && (s = *last) == NULL)
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		return (NULL);
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	/*
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	 * Skip (span) leading delimiters (s += wcsspn(s, delim), sort of).
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	 */
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cont:
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	c = *s++;
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	for (spanp = delim; (sc = *spanp++) != L'\0';) {
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		if (c == sc)
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			goto cont;
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	}
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	if (c == L'\0') {	/* no non-delimiter characters */
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		*last = NULL;
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		return (NULL);
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	}
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	tok = s - 1;
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	/*
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	 * Scan token (scan for delimiters: s += wcscspn(s, delim), sort of).
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	 * Note that delim must have one NUL; we stop if we see that, too.
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	 */
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	for (;;) {
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		c = *s++;
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		spanp = delim;
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		do {
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			if ((sc = *spanp++) == c) {
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				if (c == L'\0')
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					s = NULL;
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				else
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					s[-1] = L'\0';
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				*last = s;
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				return (tok);
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			}
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		} while (sc != L'\0');
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	}
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	/* NOTREACHED */
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}