macro_rules! match_cal_and_date { (match ($cal:ident, $date:ident): ($cal_matched:ident, $date_matched:ident) => $e:expr) => { ... }; }
macro_rules! match_cal_and_date { (match ($cal:ident, $date:ident): ($cal_matched:ident, $date_matched:ident) => $e:expr) => { ... }; }