private function _checkPreferQuotes($token) {
		if ($this->_isActive('preferQuotes')) {
			$style = $this->_config->getTestProperty('preferQuotes', 'type');
			if ($style === SINGLE_QUOTE && $token->text === '"') {
				$this->_writeError('preferQuotes', $this->_getMessage("PREFER_SINGLE_QUOTES"));
			} elseif ($style === DOUBLE_QUOTE && $token->text === "'") {
				$this->_writeError('preferQuotes', $this->_getMessage("PREFER_DOUBLE_QUOTES"));
			}
		}
	}