/**
* Exclude some html parts by class inside content wrapped with TYPO3SEARCH_begin and TYPO3SEARCH_end
* markers.
*
* @param string $indexableContent HTML markup
* @return string HTML
*/
public function excludeContentByClass($indexableContent)
{
if (empty(trim($indexableContent))) {
return html_entity_decode($indexableContent);
}
$excludeClasses = $this->getConfiguration()->getIndexQueuePagesExcludeContentByClassArray();
if (count($excludeClasses) === 0) {
return html_entity_decode($indexableContent);
}
$isInContent = Util::containsOneOfTheStrings($indexableContent, $excludeClasses);
if (!$isInContent) {
return html_entity_decode($indexableContent);
}
$doc = new \DOMDocument('1.0', 'UTF-8');
libxml_use_internal_errors(true);
$doc->loadHTML('<?xml version="1.0" encoding="UTF-8"?>' . PHP_EOL . $indexableContent);
$xpath = new \DOMXPath($doc);
foreach ($excludeClasses as $excludePart) {
$elements = $xpath->query("//*[contains(@class,'" . $excludePart . "')]");
if (count($elements) == 0) {
continue;
}
foreach ($elements as $element) {
$element->parentNode->removeChild($element);
}
}
$html = $doc->saveHTML($doc->documentElement->parentNode);
// remove XML-Preamble, newlines and doctype
$html = preg_replace('/(<\\?xml[^>]+\\?>|\\r?\\n|<!DOCTYPE.+?>)/imS', '', $html);
$html = str_replace(array('<html>', '</html>', '<body>', '</body>'), array('', '', '', ''), $html);
return $html;
}
