Lib.rs

In functions returning Result or Option from a match, you can avoid repeating Ok() all the time by moving it an outer scope.

Instead of:

match foo {
    Bar => Ok(1)
    Baz => Ok(2)
    Quz => Ok(3)
    _ => Err("etc"),
}

you can write:

Ok(match foo {
    Bar => 1,
    Baz => 2,
    Quz => 3,
    _ => return Err("etc"),
})