private static function cleanSourcePublisher($publisher)
{
$publisher = trim(preg_replace('/[^' . Title::legalChars() . ']/', '', $publisher));
// remove stuff within parentheses
$matches = array();
if (preg_match('\\(.*?\\)$/i', $publisher, $matches)) {
$publisher = trim(mb_substr($publisher, 0, mb_strlen($publisher) - mb_strlen($matches[0])));
}
return StructuredData::capitalizeTitleCase(rtrim($publisher, ' .'));
}
