Macro combu::commands

macro_rules! commands {
    (->$($raw:tt)*) => { ... };
    () => { ... };
    (None) => { ... };
    ($([$($cmd:tt)+]$(,)?)+) => { ... };
    ($($expr:expr),+;:Command$(,)?) => { ... };
    ($($expr:expr),+ $(,)?;:Command$(,)?) => { ... };
    ($($expr:expr),*$(,)?) => { ... };
}

create command array