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.\" @(#)strtok.3 5.8 (Berkeley) 6/29/91
.Nd string token operations
.Fn strtok "char *str" "const char *sep"
This interface is obsoleted by strsep(3).
is used to isolate sequential tokens in a null-terminated string,
These tokens are separated in the string by at least one of the
should be specified; subsequent calls, wishing to obtain further tokens
from the same string, should pass a null pointer instead.
must be supplied each time, and may change between calls.
returns a pointer to the beginning of each subsequent token in the string,
after replacing the token itself with a
When no more tokens remain, a null pointer is returned.
There is no way to get tokens from multiple strings simultaneously.
if handed a string containing only delimiter characters,
will not alter the next starting point, so that a call to
with a different (or empty) delimiter string
Since this implementation always alters the next starting point,
such a sequence of calls would always return