Function combine::byte::tab

pub fn tab<I>() -> Tab<I> where
    I: Stream<Item = u8>,
    I::Error: ParseError<I::Item, I::Range, I::Position>, 

Parses a tab byteacter (b'\t').

use combine::Parser;
use combine::byte::tab;
assert_eq!(tab().parse(&b"\t"[..]), Ok((b'\t', &b""[..])));
assert!(tab().parse(&b" "[..]).is_err());