Function flat_map

Source
pub fn flat_map<I, O1, O2, E, F, P: FnMut(I) -> NomRes<I, O2, E, F>>(
    parser: impl FnMut(I) -> NomRes<I, O1, E, F>,
    f: impl FnMut(O1) -> P,
) -> impl FnMut(I) -> NomRes<I, O2, E, F>