kevintweber / Groundskeeper

    protected function doClean(LoggerInterface $logger)

    {

        // "body" element must be a child of "html" element.

        if ($this->getParent() !== null &&

            $this->getParent()->getType() === Token::ELEMENT &&

            $this->getParent()->getName() != 'html') {

            $logger->debug('Element "body" must be a child of "html" element.');

            return false;

        }

        return true;

    }

    protected function doClean(LoggerInterface $logger)

    {

        // "head" element must be a child of "html" element.

        if ($this->getParent() !== null &&

            $this->getParent()->getType() === Token::ELEMENT &&

            $this->getParent()->getName() != 'html') {

            $logger->debug('Element "head" must be a child of "html" element.');

            return false;

        }

        // "head" element must contain only metadata content elements.

        // "head" element must contain exactly one "title" element.

    protected function doClean(LoggerInterface $logger)

    {

        // If "charset" attribute is present, the must be child of "head" element.

        if ($this->hasAttribute('charset') && $this->getParent() !== null) {

            if ($this->getParent()->getType() !== Token::ELEMENT || $this->getParent()->getName() != 'head') {

                $logger->debug('Element "meta" with a "charset" attribute must be a "head" element child.');

                return false;

            }

        }

        // "name" attribute requires "content" attribute.

        if ($this->hasAttribute('name') && !$this->hasAttribute('content')) {