Function glue::combinators::mappers::map_result

source ยท 
pub fn map_result<'a, OldRes, NewRes, Par, Map>(
    parser: Par,
    mapper: Map,
) -> impl Parser<'a, NewRes>
where
    Par: Parser<'a, OldRes>,
    Map: FnMut(OldRes) -> NewRes,
Expand description

Run a parser and map the data it returns on success.

assert_eq!(
    map_result(take(1.., is(numeric)), |num: &str| num
        .parse::<usize>()
        .unwrap())
    .parse("123"),
    Ok((
        ParserContext {
            input: "123",
            bounds: 0..3,
        },
        123
    ))
);