protected function _getData()
	{
		do
		{
			$data = fgetcsv( $this->_fh, 0, $this->_separator, $this->_enclosure, $this->_escape );

			if( $data === false || $data === null ) {
				return null;
			}
		}
		while( $data === array( null ) );

		return $data;
	}