Function winnow::bytes::none_of

source ·
pub fn none_of<I, T, Error: ParseError<I>>(
    list: T
) -> impl Parser<I, <I as Stream>::Token, Error>where
    I: StreamIsPartial + Stream,
    <I as Stream>::Token: Copy,
    T: ContainsToken<<I as Stream>::Token>,
Expand description

Recognize a token that does not match the pattern

Complete version: Will return an error if there’s not enough input data.

Partial version: Will return Err(winnow::error::ErrMode::Incomplete(_)) if there’s not enough input data.

Example

assert_eq!(none_of::<_, _, Error<_>>("abc").parse_next("z"), Ok(("", 'z')));
assert_eq!(none_of::<_, _, Error<_>>("ab").parse_next("a"), Err(ErrMode::Backtrack(Error::new("a", ErrorKind::Verify))));
assert_eq!(none_of::<_, _, Error<_>>("a").parse_next(""), Err(ErrMode::Backtrack(Error::new("", ErrorKind::Token))));
assert_eq!(none_of::<_, _, Error<_>>("abc").parse_next(Partial::new("z")), Ok((Partial::new(""), 'z')));
assert_eq!(none_of::<_, _, Error<_>>("ab").parse_next(Partial::new("a")), Err(ErrMode::Backtrack(Error::new(Partial::new("a"), ErrorKind::Verify))));
assert_eq!(none_of::<_, _, Error<_>>("a").parse_next(Partial::new("")), Err(ErrMode::Incomplete(Needed::new(1))));