public function getNextChar()
	{
		$character	= NULL;
		if( $this->direction == "<" )
			$this->pointer++;
		if( $this->pointer < $this->count() &&  $this->pointer >=0 )
		{
			$this->direction = ">";
			$character = $this->buffer[$this->pointer];
			$this->pointer++;
		}
		return $character;
	}