[−][src]Function gchemol_parser::parsers::alpha1
pub fn alpha1<T, E>(input: T) -> Result<(T, T), Err<E>> where
E: ParseError<T>,
T: InputTakeAtPosition,
<T as InputTakeAtPosition>::Item: AsChar,
Recognizes one or more lowercase and uppercase ASCII alphabetic characters: a-z, A-Z
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 alphabetic character).
Example
fn parser(input: &str) -> IResult<&str, &str> { alpha1(input) } assert_eq!(parser("aB1c"), Ok(("1c", "aB"))); assert_eq!(parser("1c"), Err(Err::Error(("1c", ErrorKind::Alpha)))); assert_eq!(parser(""), Err(Err::Error(("", ErrorKind::Alpha))));