HTMLPurifier_Config::maybeGetRawHTMLDefinition PHP Method

    public function maybeGetRawHTMLDefinition()
    {
        return $this->getDefinition('HTML', true, true);
    }

 private static function html5Config(\HTMLPurifier_Config $config)
 {
     $config->set('HTML.DefinitionID', 'jivoo.html5');
     $config->set('HTML.DefinitionRev', 1);
     $def = $config->maybeGetRawHTMLDefinition();
     if ($def) {
         $def->addElement('figure', 'Block', 'Optional: (figcaption, Flow) | (Flow, figcaption) | Flow', 'Common');
         $def->addElement('figcaption', 'Inline', 'Flow', 'Common');
     }
 }