source: trunk/minix/lib/ansi/strtok.c@ 10

Last change on this file since 10 was 9, checked in by Mattia Monga, 13 years ago

Minix 3.1.2a

File size: 692 bytes
Line 
1/*
2 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
3 * See the copyright notice in the ACK home directory, in the file "Copyright".
4 */
5/* $Header: /cvsup/minix/src/lib/ansi/strtok.c,v 1.1.1.1 2005/04/21 14:56:06 beng Exp $ */
6
7#include <string.h>
8
9char *
10strtok(register char *string, const char *separators)
11{
12 register char *s1, *s2;
13 static char *savestring;
14
15 if (string == NULL) {
16 string = savestring;
17 if (string == NULL) return (char *)NULL;
18 }
19
20 s1 = string + strspn(string, separators);
21 if (*s1 == '\0') {
22 savestring = NULL;
23 return (char *)NULL;
24 }
25
26 s2 = strpbrk(s1, separators);
27 if (s2 != NULL)
28 *s2++ = '\0';
29 savestring = s2;
30 return s1;
31}
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