86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/*-
|
|
* 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, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* 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.
|
|
* 4. Neither the name of 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <wchar.h>
|
|
|
|
wchar_t *
|
|
wcstok(wchar_t * __restrict s, const wchar_t * __restrict delim,
|
|
wchar_t ** __restrict last)
|
|
{
|
|
const wchar_t *spanp;
|
|
wchar_t *tok;
|
|
wchar_t c, sc;
|
|
|
|
if (s == NULL && (s = *last) == NULL)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Skip (span) leading delimiters (s += wcsspn(s, delim), sort of).
|
|
*/
|
|
cont:
|
|
c = *s++;
|
|
for (spanp = delim; (sc = *spanp++) != L'\0';) {
|
|
if (c == sc)
|
|
goto cont;
|
|
}
|
|
|
|
if (c == L'\0') { /* no non-delimiter characters */
|
|
*last = NULL;
|
|
return (NULL);
|
|
}
|
|
tok = s - 1;
|
|
|
|
/*
|
|
* Scan token (scan for delimiters: s += wcscspn(s, delim), sort of).
|
|
* Note that delim must have one NUL; we stop if we see that, too.
|
|
*/
|
|
for (;;) {
|
|
c = *s++;
|
|
spanp = delim;
|
|
do {
|
|
if ((sc = *spanp++) == c) {
|
|
if (c == L'\0')
|
|
s = NULL;
|
|
else
|
|
s[-1] = L'\0';
|
|
*last = s;
|
|
return (tok);
|
|
}
|
|
} while (sc != L'\0');
|
|
}
|
|
/* NOTREACHED */
|
|
}
|