Macro nom::bytes

macro_rules! bytes {
    ($i:expr, $submac:ident!( $($args:tt)* )) => { ... };
    ($i:expr, $f:expr) => { ... };
}

Counterpart to bits, bytes!( parser ) => ( (&[u8], usize), &[u8] -> IResult<&[u8], T> ) -> IResult<(&[u8], usize), T>, transforms its bits stream input into a byte slice for the underlying parsers. If we start in the middle of a byte throws away the bits until the end of the byte.

 named!( parse<(u8, u8, &[u8])>,  bits!( tuple!(
   take_bits!(u8, 4),
   take_bits!(u8, 8),
   bytes!(rest)
)));

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

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