| 1 |
207 |
jeremybenn |
/*
|
| 2 |
|
|
* Copyright (c) 1988 Regents of the University of California.
|
| 3 |
|
|
* All rights reserved.
|
| 4 |
|
|
*
|
| 5 |
|
|
* Redistribution and use in source and binary forms, with or without
|
| 6 |
|
|
* modification, are permitted provided that the following conditions
|
| 7 |
|
|
* are met:
|
| 8 |
|
|
* 1. Redistributions of source code must retain the above copyright
|
| 9 |
|
|
* notice, this list of conditions and the following disclaimer.
|
| 10 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
| 11 |
|
|
* notice, this list of conditions and the following disclaimer in the
|
| 12 |
|
|
* documentation and/or other materials provided with the distribution.
|
| 13 |
|
|
* 3. Neither the name of the University nor the names of its contributors
|
| 14 |
|
|
* may be used to endorse or promote products derived from this software
|
| 15 |
|
|
* without specific prior written permission.
|
| 16 |
|
|
*
|
| 17 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
| 18 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| 19 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
| 20 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
| 21 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
| 22 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
| 23 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
| 24 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
| 25 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
| 26 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
| 27 |
|
|
* SUCH DAMAGE.
|
| 28 |
|
|
*/
|
| 29 |
|
|
|
| 30 |
|
|
#include <string.h>
|
| 31 |
|
|
|
| 32 |
|
|
char *
|
| 33 |
|
|
_DEFUN (__strtok_r, (s, delim, lasts, skip_leading_delim),
|
| 34 |
|
|
register char *s _AND
|
| 35 |
|
|
register const char *delim _AND
|
| 36 |
|
|
char **lasts _AND
|
| 37 |
|
|
int skip_leading_delim)
|
| 38 |
|
|
{
|
| 39 |
|
|
register char *spanp;
|
| 40 |
|
|
register int c, sc;
|
| 41 |
|
|
char *tok;
|
| 42 |
|
|
|
| 43 |
|
|
|
| 44 |
|
|
if (s == NULL && (s = *lasts) == NULL)
|
| 45 |
|
|
return (NULL);
|
| 46 |
|
|
|
| 47 |
|
|
/*
|
| 48 |
|
|
* Skip (span) leading delimiters (s += strspn(s, delim), sort of).
|
| 49 |
|
|
*/
|
| 50 |
|
|
cont:
|
| 51 |
|
|
c = *s++;
|
| 52 |
|
|
for (spanp = (char *)delim; (sc = *spanp++) != 0;) {
|
| 53 |
|
|
if (c == sc) {
|
| 54 |
|
|
if (skip_leading_delim) {
|
| 55 |
|
|
goto cont;
|
| 56 |
|
|
}
|
| 57 |
|
|
else {
|
| 58 |
|
|
*lasts = s;
|
| 59 |
|
|
s[-1] = 0;
|
| 60 |
|
|
return (s - 1);
|
| 61 |
|
|
}
|
| 62 |
|
|
}
|
| 63 |
|
|
}
|
| 64 |
|
|
|
| 65 |
|
|
if (c == 0) { /* no non-delimiter characters */
|
| 66 |
|
|
*lasts = NULL;
|
| 67 |
|
|
return (NULL);
|
| 68 |
|
|
}
|
| 69 |
|
|
tok = s - 1;
|
| 70 |
|
|
|
| 71 |
|
|
/*
|
| 72 |
|
|
* Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
|
| 73 |
|
|
* Note that delim must have one NUL; we stop if we see that, too.
|
| 74 |
|
|
*/
|
| 75 |
|
|
for (;;) {
|
| 76 |
|
|
c = *s++;
|
| 77 |
|
|
spanp = (char *)delim;
|
| 78 |
|
|
do {
|
| 79 |
|
|
if ((sc = *spanp++) == c) {
|
| 80 |
|
|
if (c == 0)
|
| 81 |
|
|
s = NULL;
|
| 82 |
|
|
else
|
| 83 |
|
|
s[-1] = 0;
|
| 84 |
|
|
*lasts = s;
|
| 85 |
|
|
return (tok);
|
| 86 |
|
|
}
|
| 87 |
|
|
} while (sc != 0);
|
| 88 |
|
|
}
|
| 89 |
|
|
/* NOTREACHED */
|
| 90 |
|
|
}
|
| 91 |
|
|
|
| 92 |
|
|
char *
|
| 93 |
|
|
_DEFUN (strtok_r, (s, delim, lasts),
|
| 94 |
|
|
register char *s _AND
|
| 95 |
|
|
register const char *delim _AND
|
| 96 |
|
|
char **lasts)
|
| 97 |
|
|
{
|
| 98 |
|
|
return __strtok_r (s, delim, lasts, 1);
|
| 99 |
|
|
}
|
