2 * Copyright (c) 1998 Softweyr LLC. All rights reserved.
4 * strtok_r, from Berkeley strtok
5 * Oct 13, 1998 by Wes Peters <wes@softweyr.com>
7 * Copyright (c) 1988, 1993
8 * The Regents of the University of California. All rights reserved.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notices, this list of conditions and the following disclaimer.
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18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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34 * @(#)strtok.c 8.1 (Berkeley) 6/4/93
35 * $FreeBSD: head/lib/libc/string/strtok.c 251069 2013-05-28 20:57:40Z emaste $
44 char *__strtok_r(char *, const char *, char **);
47 __strtok_r(char * __restrict s, const char * __restrict delim,
48 char ** __restrict last)
53 if (s == NULL && (s = *last) == NULL)
57 * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
61 for (spanp = (char *)delim; (sc = *spanp++) != 0;) {
66 if (c == 0) { /* no non-delimiter characters */
73 * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
74 * Note that delim must have one NUL; we stop if we see that, too.
78 spanp = (char *)delim;
80 if ((sc = *spanp++) == c) {
93 __weak_reference(__strtok_r, strtok_r);
96 strtok(char *s, const char *delim)
100 return (__strtok_r(s, delim, &last));
105 * Test the tokenizer.
110 char blah[80], test[80];
111 char *brkb, *brkt, *phrase, *sep, *word;
116 printf("String tokenizer test:\n");
117 strcpy(test, "This;is.a:test:of=the/string\\tokenizer-function.");
118 for (word = strtok(test, sep); word; word = strtok(NULL, sep))
119 printf("Next word is \"%s\".\n", word);
120 strcpy(test, "This;is.a:test:of=the/string\\tokenizer-function.");
122 for (word = strtok_r(test, sep, &brkt); word;
123 word = strtok_r(NULL, sep, &brkt)) {
124 strcpy(blah, "blah:blat:blab:blag");
126 for (phrase = strtok_r(blah, sep, &brkb); phrase;
127 phrase = strtok_r(NULL, sep, &brkb))
128 printf("So far we're at %s:%s\n", word, phrase);
134 #endif /* DEBUG_STRTOK */