@node strtok, string
@findex strtok
@subheading Syntax

@example
#include <string.h>

char *strtok(char *s1, const char *s2);
@end example

@subheading Description

This function retrieves tokens from @var{s1} which are delimited by
characters from @var{s2}.

To initiate the search, pass the string to be searched as @var{s1}.  For
the remaining tokens, pass @code{NULL} instead. 

@subheading Return Value

A pointer to the token, or @code{NULL} if no more are found.

@subheading Portability

@portability ansi, posix

@subheading Example

@example
#include <stdio.h>
#include <string.h>

int main(void)
@{
  char buf[] = "Hello there, stranger";
  char *tok;
  for (tok = strtok(buf, " ,");
       tok;
       tok=strtok(0, " ,"))
    printf("tok = `%s'\n", tok);

  return 0;
@}

tok = `Hello'
tok = `there'
tok = `stranger'
@end example