Function nom::number::streaming::recognize_float

source · 
pub fn recognize_float<T, E: ParseError<T>>(input: T) -> IResult<T, T, E>
where
    T: Slice<RangeFrom<usize>> + Slice<RangeTo<usize>> + Clone + Offset + InputIter + InputTakeAtPosition + InputLength,
    <T as InputIter>::Item: AsChar,
    <T as InputTakeAtPosition>::Item: AsChar,
Expand description

Recognizes a floating point number in text format and returns the corresponding part of the input.

Streaming version: Will return Err(nom::Err::Incomplete(_)) if it reaches the end of input.

use nom::number::streaming::recognize_float;

let parser = |s| {
  recognize_float(s)
};

assert_eq!(parser("11e-1;"), Ok((";", "11e-1")));
assert_eq!(parser("123E-02;"), Ok((";", "123E-02")));
assert_eq!(parser("123K-01"), Ok(("K-01", "123")));
assert_eq!(parser("abc"), Err(Err::Error(("abc", ErrorKind::Char))));