protected function renderLink($block)
{
$result = parent::renderLink($block);
// add special syntax for linking to the guide
$result = preg_replace_callback('/href="guide:([A-z0-9-.#]+)"/i', function ($match) {
return 'href="' . static::$renderer->generateGuideUrl($match[1]) . '"';
}, $result, 1);
return $result;
}