Function take_while1

pub fn take_while1<T, Input, Error: ParseError<Input>>(
    list: T,
) -> impl Fn(Input) -> IResult<Input, <Input as IntoOutput>::Output, Error>
where
    Input: InputTakeAtPosition + IntoOutput,
    T: FindToken<<Input as InputTakeAtPosition>::Item>,

👎Deprecated since 8.0.0: Replaced with nom8::bytes::take_while1

Returns the longest (at least 1) input slice that matches the predicate.

The parser will return the longest slice that matches the given predicate (a function that takes the input and returns a bool).

It will return an Err(Err::Error((_, ErrorKind::TakeWhile1))) if the pattern wasn’t met.

Example

use nom8::bytes::complete::take_while1;
use nom8::input::AsChar;

fn alpha(s: &[u8]) -> IResult<&[u8], &[u8]> {
  take_while1(AsChar::is_alpha)(s)
}

assert_eq!(alpha(b"latin123"), Ok((&b"123"[..], &b"latin"[..])));
assert_eq!(alpha(b"latin"), Ok((&b""[..], &b"latin"[..])));
assert_eq!(alpha(b"12345"), Err(Err::Error(Error::new(&b"12345"[..], ErrorKind::TakeWhile1))));

WARNING: Deprecated, replaced with nom8::bytes::take_while1