Function winnow::character::space1

pub fn space1<I, E: ParseError<I>>(
    input: I
) -> IResult<I, <I as Stream>::Slice, E>where
    I: StreamIsPartial + Stream,
    <I as Stream>::Token: AsChar,

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).

Partial version: Will return Err(winnow::error::ErrMode::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(ErrMode::Backtrack(Error::new("H2", ErrorKind::Space))));
assert_eq!(parser(""), Err(ErrMode::Backtrack(Error::new("", ErrorKind::Space))));

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