Macro lazy_db::search_container

macro_rules! search_container {
    (($container:expr) /$($($con:ident)?$(($can:expr))?)/ *) => { ... };
    (($container:expr) /$($($con:ident)?$(($can:expr))?)/ *::$($item:ident)?$(($obj:expr))?) => { ... };
    (($container:expr) $($item:ident)?$(($obj:expr))?) => { ... };
}

Used for reading from a LazyContainer with less boiler-plate