private function _checkShortOpenTag($token) {
		// check if shorthand code tags are allowed
		if ($this->_isActive('noShortPhpCodeTag')) {
			$shortOpenTagPos = strpos($token->text, '<?php');
			if ($shortOpenTagPos === false) {
				$this->_writeError('noShortPhpCodeTag', $this->_getMessage('WRONG_OPEN_TAG'));
			}
		}
	}