pub fn oct_digit0<T, E: ParseError<T>>(input: T) -> IResult<T, T, E> where
T: InputTakeAtPosition,
<T as InputTakeAtPosition>::Item: AsChar, Expand description
Recognizes zero or more octal characters: 0-7
Complete version: Will return the whole input if no terminating token is found (a non octal digit character).
Example
fn parser(input: &str) -> IResult<&str, &str> {
oct_digit0(input)
}
assert_eq!(parser("21cZ"), Ok(("cZ", "21")));
assert_eq!(parser("Z21c"), Ok(("Z21c", "")));
assert_eq!(parser(""), Ok(("", "")));