Function combine::parser::range::range

pub fn range<I>(i: I::Range) -> Range<I> where
    I: RangeStream,
    I::Range: PartialEq, 

Zero-copy parser which reads a range of length i.len() and succeeds if i is equal to that range.

tokens2 is a non-RangeStream alternative.

let mut parser = range("hello");
let result = parser.parse("hello world");
assert_eq!(result, Ok(("hello", " world")));
let result = parser.parse("hel world");
assert!(result.is_err());