Function gchemol_parser::parsers::streaming::alpha0

pub fn alpha0<T, E>(input: T) -> Result<(T, T), Err<E>> where
    E: ParseError<T>,
    T: InputTakeAtPosition,
    <T as InputTakeAtPosition>::Item: AsChar, 

Recognizes zero or more lowercase and uppercase ASCII alphabetic characters: a-z, A-Z

streaming version: Will return Err(nom::Err::Incomplete(_)) if there's not enough input data, or if no terminating token is found (a non alphabetic character).

Example

assert_eq!(alpha0::<_, (_, ErrorKind)>("ab1c"), Ok(("1c", "ab")));
assert_eq!(alpha0::<_, (_, ErrorKind)>("1c"), Ok(("1c", "")));
assert_eq!(alpha0::<_, (_, ErrorKind)>(""), Err(Err::Incomplete(Needed::Size(1))));