32 lines
616 B
C
Executable file
32 lines
616 B
C
Executable file
/*
|
|
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
|
|
* See the copyright notice in the ACK home directory, in the file "Copyright".
|
|
*/
|
|
/* $Header$ */
|
|
|
|
#include <string.h>
|
|
|
|
char *
|
|
strtok(register char *string, const char *separators)
|
|
{
|
|
register char *s1, *s2;
|
|
static char *savestring;
|
|
|
|
if (string == NULL) {
|
|
string = savestring;
|
|
if (string == NULL) return (char *)NULL;
|
|
}
|
|
|
|
s1 = string + strspn(string, separators);
|
|
if (*s1 == '\0') {
|
|
savestring = NULL;
|
|
return (char *)NULL;
|
|
}
|
|
|
|
s2 = strpbrk(s1, separators);
|
|
if (s2 != NULL)
|
|
*s2++ = '\0';
|
|
savestring = s2;
|
|
return s1;
|
|
}
|