Macro aoc_main::parse

macro_rules! parse {
    (
        day $apply: ident, $ctx: tt, $val: expr;
        $day: ident => $( $tail: tt )*
    ) => { ... };
    (
        day $apply: ident, $ctx: tt, $val: expr;
        $day: ident : $generator: ident => $( $tail: tt )*
    ) => { ... };
    (
        day $apply: ident, $ctx: tt, $val: expr;
        $day: ident : $generator: ident ? => $( $tail: tt )*
    ) => { ... };
    ( day $apply: ident, $ctx: tt, $val: expr; ) => { ... };
    (
        sol $apply: ident, $ctx: tt, $val: expr;
        { day $day: tt { $gen: tt { $( $acc: tt )* } } } ;
        $sol: ident ? $( $tail: tt )*
    ) => { ... };
    (
        sol $apply: ident, $ctx: tt, $val: expr;
        { day $day: tt { $gen: tt { $( $acc: tt )* } } } ;
        $sol: ident $( $tail: tt )*
    ) => { ... };
    (
        post_sol $apply: ident, $ctx: tt, $val: expr;
        $curr: tt ; , $( $tail: tt )*
    ) => { ... };
    (
        post_sol $apply: ident, $ctx: tt, $val: expr;
        $curr: tt ; ; $( $tail: tt )*
    ) => { ... };
    ( $apply: ident $ctx: tt; $( $tt: tt )* ) => { ... };
}