Macro combu::version

macro_rules! version {
    () => { ... };
    (None) => { ... };
    (...) => { ... };
    (from_crate) => { ... };
    ($vm : literal.$vp : literal) => { ... };
    ($version : literal) => { ... };
    ($major : literal $(,) ? $minor : literal $(,) ? $patch : literal
 $($($tail : tt) +) ?) => { ... };
    (& $from : expr) => { ... };
    (-> $raw : expr) => { ... };
}

Macro for specification of command version