Compass::compassBlank PHP Method

    public static function compassBlank($object)
    {
        if (is_object($object)) {
            $object = $object->value;
        }
        $result = false;
        if (is_bool($object)) {
            $result = !$object;
        }
        if (is_string($object)) {
            $result = strlen(trim($object, ' ,')) === 0;
        }
        return new SassBoolean($result);
    }