combine::parser::byte

Function oct_digit

source 
pub fn oct_digit<Input>() -> impl Parser<Input, Output = u8, PartialState = ()>
where
    Input: Stream<Token = u8>,
Expand description

Parses an octal digit.

use combine::Parser;
use combine::parser::byte::oct_digit;
assert_eq!(oct_digit().parse(&b"7"[..]), Ok((b'7', &b""[..])));
assert!(oct_digit().parse(&b"8"[..]).is_err());