<?php

  // StringTokenizer.php
  // 2007-07-23
  // Chieh Cheng
  // http://www.CynosureX.com/

  // GNU General Public License (GPL) Version 2, June 1991

  class StringTokenizer
  {
    var $pos = 0;
    var $tokens = array ();

    function StringTokenizer ($str, $delim = " \t\r\n")
    {
      $token = strtok ($str, $delim);

      while ($token != "")
      {
        $this->tokens [] = $token;
        $token = strtok ($delim);
      }
    }

    function countTokens ()
    {
      $result = count ($this->tokens) - $this->pos;
      return $result;
    }

    function hasMoreTokens ()
    {
      return ($this->countTokens () != 0);
    }

    function nextToken ()
    {
      $token = $this->tokens [$this->pos];
      $this->pos ++;
      return $token;
    }
  }
?>