public static function get_aliases($ext='') {
		$ext = trim(strtolower($ext));
		$ext = ltrim($ext, '.');
		if (strlen($ext) && array_key_exists($ext, mime\aliases::$data)) {
			$match = mime\aliases::$data[$ext];
		} else {
			$match = false;
		}

		// Filter.
		return apply_filters('blobmimes_get_mime_aliases', $match, $ext);
	}