/**
* Filter a \DOMNode according to this filter's logic
*
* @param \DOMNode $node
* @return string|null If a string, it should be a GO or STOP message
*/
public function filter(\DOMNode $node)
{
if ($this->_sanitize($node) == AbstractFilter::GO) {
return AbstractFilter::GO;
}
$replacementText = Wibble\Utility::nodeToString($node);
$replacementNode = $node->ownerDocument->createTextNode($replacementText);
$parent = $node->parentNode;
$parent->insertBefore($replacementNode, $node);
$parent->removeChild($node);
}
/**
* Convert this Wibble\HTML\Document to serialised HTML/XHTML string
*
* @return string
*/
public function toString()
{
$xpath = new \DOMXPath($this->getDOM());
$result = $xpath->query('/html/body');
if ($result->length == 0) {
return '';
}
$output = $this->_getInnerHTML($result->item(0));
$output = $this->_htmlEntityDecode($output, 'UTF-8');
if (!class_exists('\\tidy') && !$this->_options['disable_tidy']) {
throw new Wibble\Exception('It is highly recommended that Wibble operate with support from' . ' the PHP Tidy extension to ensure output wellformedness. If' . ' you are unable to install this extension you may explicitly' . ' disable Tidy support by setting the disable_tidy configuration' . ' option to FALSE. Without ext/tidy enabled, output is in no' . ' way guaranteed to comply entirely to the target HTML standard.');
} elseif ($this->_options['disable_tidy']) {
$output = Wibble\Utility::convertFromUTF8($output, $this->_options['output_encoding']);
return $output;
}
$output = $this->_applyTidy($output, true);
return $output = Wibble\Utility::convertFromUTF8($output, $this->_options['output_encoding']);
}
/**
* Based on instance parameters, load the source markup into a \DOMDocument
*
* @param string $markup
* @return void
*/
protected function _load($markup)
{
$markup = Wibble\Utility::convertToUTF8($markup, $this->_options['input_encoding']);
$markup = Wibble\Utility::insertCharset($markup, 'UTF-8');
$dom = new \DOMDocument();
$dom->preserveWhitespace = false;
libxml_use_internal_errors(true);
$dom->loadHTML($markup);
libxml_use_internal_errors(false);
$this->_dom = $dom;
}
