169 lines
3.9 KiB
C
169 lines
3.9 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.
|
|
*
|
|
* 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 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif
|
|
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
|
|
char *
|
|
strtok_r(char *s, const char *delim, char **last)
|
|
{
|
|
char *spanp;
|
|
int c, sc;
|
|
char *tok;
|
|
|
|
if (s == NULL && (s = *last) == NULL)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Skip (span) leading delimiters (s += strspn(s, delim), sort of).
|
|
*/
|
|
cont:
|
|
c = *s++;
|
|
for (spanp = (char *)delim; (sc = *spanp++) != 0; )
|
|
{
|
|
if (c == sc)
|
|
{
|
|
goto cont;
|
|
}
|
|
}
|
|
|
|
if (c == 0) /* no non-delimiter characters */
|
|
{
|
|
*last = NULL;
|
|
return NULL;
|
|
}
|
|
tok = s - 1;
|
|
|
|
/*
|
|
* Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
|
|
* Note that delim must have one NUL; we stop if we see that, too.
|
|
*/
|
|
for (;;)
|
|
{
|
|
c = *s++;
|
|
spanp = (char *)delim;
|
|
do
|
|
{
|
|
if ((sc = *spanp++) == c)
|
|
{
|
|
if (c == 0)
|
|
{
|
|
s = NULL;
|
|
}
|
|
else
|
|
{
|
|
char *w = s - 1;
|
|
*w = '\0';
|
|
}
|
|
*last = s;
|
|
return tok;
|
|
}
|
|
}
|
|
while (sc != 0);
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
|
|
char *
|
|
strtok(char *s, const char *delim)
|
|
{
|
|
static char *last;
|
|
|
|
return strtok_r(s, delim, &last);
|
|
}
|
|
|
|
|
|
#if defined(DEBUG_STRTOK)
|
|
|
|
/*
|
|
* Test the tokenizer.
|
|
*/
|
|
int
|
|
main()
|
|
{
|
|
char test[80], blah[80];
|
|
char *sep = "\\/:;=-";
|
|
char *word, *phrase, *brkt, *brkb;
|
|
|
|
printf("String tokenizer test:\n");
|
|
|
|
strcpy(test, "This;is.a:test:of=the/string\\tokenizer-function.");
|
|
|
|
for (word = strtok(test, sep);
|
|
word;
|
|
word = strtok(NULL, sep))
|
|
{
|
|
printf("Next word is \"%s\".\n", word);
|
|
}
|
|
|
|
phrase = "foo";
|
|
|
|
strcpy(test, "This;is.a:test:of=the/string\\tokenizer-function.");
|
|
|
|
for (word = strtok_r(test, sep, &brkt);
|
|
word;
|
|
word = strtok_r(NULL, sep, &brkt))
|
|
{
|
|
strcpy(blah, "blah:blat:blab:blag");
|
|
|
|
for (phrase = strtok_r(blah, sep, &brkb);
|
|
phrase;
|
|
phrase = strtok_r(NULL, sep, &brkb))
|
|
{
|
|
printf("So far we're at %s:%s\n", word, phrase);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* DEBUG_STRTOK */
|