Function nom::character::complete::line_ending

pub fn line_ending<T, E: ParseError<T>>(input: T) -> IResult<T, T, E> where
    T: Slice<Range<usize>> + Slice<RangeFrom<usize>> + Slice<RangeTo<usize>>,
    T: InputIter + InputLength,
    T: Compare<&'static str>, 

Recognizes an end of line (both ‘\n’ and ‘\r\n’).

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

Example

fn parser(input: &str) -> IResult<&str, &str> {
    line_ending(input)
}

assert_eq!(parser("\r\nc"), Ok(("c", "\r\n")));
assert_eq!(parser("ab\r\nc"), Err(Err::Error(("ab\r\nc", ErrorKind::CrLf))));
assert_eq!(parser(""), Err(Err::Error(("", ErrorKind::CrLf))));