Function nom::bits::bytes

pub fn bytes<I, O, E1: ParseError<I> + ErrorConvert<E2>, E2: ParseError<(I, usize)>, P>(
    parser: P
) -> impl Fn((I, usize)) -> IResult<(I, usize), O, E2> where
    I: Slice<RangeFrom<usize>> + Clone,
    P: Fn(I) -> IResult<I, O, E1>, 

Counterpart to bits, bytes transforms its bit stream input into a byte slice for the underlying parser, allowing byte-slice parsers to work on bit streams.

A partial byte remaining in the input will be ignored and the given parser will start parsing at the next full byte.

use nom::bits::{bits, bytes, streaming::take_bits};

fn parse(input: &[u8]) -> IResult<&[u8], (u8, u8, &[u8])> {
  bits(tuple((
    take_bits(4usize),
    take_bits(8usize),
    bytes(rest)
  )))(input)
}

let input = &[0xde, 0xad, 0xbe, 0xaf];

assert_eq!(parse( input ), Ok(( &[][..], (0xd, 0xea, &[0xbe, 0xaf][..]) )));