pub fn i64<T, E: ParseError<T>>(input: T) -> IResult<T, i64, E>where
T: InputIter + Slice<RangeFrom<usize>> + InputLength + InputTake + Clone + for<'a> Compare<&'a [u8]>,
<T as InputIter>::Item: AsChar,Expand description
will parse a number in text form to a number
Complete version: can parse until the end of input.