Function be_u16

pub fn be_u16<I, E: ParseError<I>>(input: I) -> IResult<I, u16, E>
where
    I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength,

Recognizes a big endian unsigned 2 bytes integer.

Complete version: Returns an error if there is not enough input data.

use nom::number::complete::be_u16;

let parser = |s| {
  be_u16(s)
};

assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0003)));
assert_eq!(parser(&b"\x01"[..]), Err(Err::Error((&[0x01][..], ErrorKind::Eof))));