Function nom8::character::space1

source ·
pub fn space1<T, E: ParseError<T>, const STREAMING: bool>(
    input: T
) -> IResult<T, <T as IntoOutput>::Output, E>where
    T: InputTakeAtPosition + InputIsStreaming<STREAMING> + IntoOutput,
    <T as InputTakeAtPosition>::Item: AsChar + Clone,
Expand description

Recognizes one or more spaces and tabs.

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 space character).

Streaming version: Will return Err(nom8::Err::Incomplete(_)) if there’s not enough input data, or if no terminating token is found (a non space character).

Example

fn parser(input: &str) -> IResult<&str, &str> {
    space1(input)
}

assert_eq!(parser(" \t21c"), Ok(("21c", " \t")));
assert_eq!(parser("H2"), Err(Err::Error(Error::new("H2", ErrorKind::Space))));
assert_eq!(parser(""), Err(Err::Error(Error::new("", ErrorKind::Space))));
assert_eq!(space1::<_, (_, ErrorKind), true>(Streaming(" \t21c")), Ok((Streaming("21c"), " \t")));
assert_eq!(space1::<_, (_, ErrorKind), true>(Streaming("H2")), Err(Err::Error((Streaming("H2"), ErrorKind::Space))));
assert_eq!(space1::<_, (_, ErrorKind), true>(Streaming("")), Err(Err::Incomplete(Needed::new(1))));