Function bin_digit1

pub fn bin_digit1<T, E: ParseError<T>>(input: T) -> IResult<T, T, E>
where
    T: Input,
    <T as Input>::Item: AsChar,

Recognizes one or more binary characters: 0-1

Complete version: Will return an error if there’s not enough input data, or the whole input if no terminating token is found (a non binary digit character).

Example

fn parser(input: &str) -> IResult<&str, &str> {
    bin_digit1(input)
}

assert_eq!(parser("013a"), Ok(("3a", "01")));
assert_eq!(parser("a013"), Err(Err::Error(Error::new("a013", ErrorKind::BinDigit))));
assert_eq!(parser(""), Err(Err::Error(Error::new("", ErrorKind::BinDigit))));