Function combine::byte::crlf

pub fn crlf<I>() -> CrLf<I> where
    I: Stream<Item = u8>, 

Parses carriage return and newline (&b"\r\n"), returning the newline byteacter.

use combine::Parser;
use combine::byte::crlf;
assert_eq!(crlf().parse(&b"\r\n"[..]), Ok((b'\n', &b""[..])));
assert!(crlf().parse(&b"\r"[..]).is_err());
assert!(crlf().parse(&b"\n"[..]).is_err());