Function winnow::number::le_u16

pub fn le_u16<I, E: ParseError<I>>(input: I) -> IResult<I, u16, E>where
    I: StreamIsPartial + Stream<Token = u8>,
    <I as Stream>::Slice: AsBytes,

Recognizes a little endian unsigned 2 bytes integer.

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

Partial version: Will return Err(winnow::error::ErrMode::Incomplete(_)) if there is not enough data.

Example

use winnow::number::le_u16;

let parser = |s| {
  le_u16(s)
};

assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0300)));
assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Eof))));

use winnow::number::le_u16;

let parser = |s| {
  le_u16::<_, Error<_>>(s)
};

assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0100)));
assert_eq!(parser(Partial::new(&b"\x01"[..])), Err(ErrMode::Incomplete(Needed::new(1))));