Function recognize

pub fn recognize<P>(parser: P) -> Recognize<P>
where
    <P::Input as StreamOnce>::Error: ParseError<<P::Input as StreamOnce>::Item, <P::Input as StreamOnce>::Range, <P::Input as StreamOnce>::Position>,
    P: Parser,
    P::Input: RangeStream,
    <P::Input as StreamOnce>::Range: Range,

Zero-copy parser which returns consumed input range.

combinator::recognize is a non-RangeStream alternative.

let mut parser = recognize(skip_many1(letter()));
assert_eq!(parser.parse("hello world"), Ok(("hello", " world")));
assert!(parser.parse("!").is_err());