Function abnf_core::complete::hexdig

pub fn hexdig<I, E>(input: I) -> IResult<I, char, E>where
    I: InputIter + Slice<RangeFrom<usize>>,
    <I as InputIter>::Item: AsChar,
    E: ParseError<I>,

HEXDIG = DIGIT / “A” / “B” / “C” / “D” / “E” / “F”