2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1998 Softweyr LLC. All rights reserved.
6 * strtok_r, from Berkeley strtok
7 * Oct 13, 1998 by Wes Peters <wes@softweyr.com>
9 * Copyright (c) 1988, 1993
10 * The Regents of the University of California. All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notices, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notices, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
27 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SOFTWEYR LLC, THE
28 * REGENTS, OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
30 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 #if defined(LIBC_SCCS) && !defined(lint)
38 static char sccsid[] = "@(#)strtok.c 8.1 (Berkeley) 6/4/93";
39 #endif /* LIBC_SCCS and not lint */
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
49 char *__strtok_r(char *, const char *, char **);
51 __weak_reference(__strtok_r, strtok_r);
54 __strtok_r(char *s, const char *delim, char **last)
59 if (s == NULL && (s = *last) == NULL)
63 * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
67 for (spanp = (char *)delim; (sc = *spanp++) != 0;) {
72 if (c == 0) { /* no non-delimiter characters */
79 * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
80 * Note that delim must have one NUL; we stop if we see that, too.
84 spanp = (char *)delim;
86 if ((sc = *spanp++) == c) {
100 strtok(char *s, const char *delim)
104 return (__strtok_r(s, delim, &last));
109 * Test the tokenizer.
114 char blah[80], test[80];
115 char *brkb, *brkt, *phrase, *sep, *word;
120 printf("String tokenizer test:\n");
121 strcpy(test, "This;is.a:test:of=the/string\\tokenizer-function.");
122 for (word = strtok(test, sep); word; word = strtok(NULL, sep))
123 printf("Next word is \"%s\".\n", word);
124 strcpy(test, "This;is.a:test:of=the/string\\tokenizer-function.");
126 for (word = strtok_r(test, sep, &brkt); word;
127 word = strtok_r(NULL, sep, &brkt)) {
128 strcpy(blah, "blah:blat:blab:blag");
130 for (phrase = strtok_r(blah, sep, &brkb); phrase;
131 phrase = strtok_r(NULL, sep, &brkb))
132 printf("So far we're at %s:%s\n", word, phrase);
138 #endif /* DEBUG_STRTOK */