A helper type for forcing literal string replacement.

It can be used with routines like Regex::replace and Regex::replace_all to do a literal string replacement without expanding $name to their corresponding capture groups. This can be both convenient (to avoid escaping $, for example) and faster (since capture groups don't need to be found).

's is the lifetime of the literal string to use.

Example

use regex::{NoExpand, Regex};

let re = Regex::new(r"(?<last>[^,\s]+),\s+(\S+)").unwrap();
let result = re.replace("Springsteen, Bruce", NoExpand("$2 $last"));
assert_eq!(result, "$2 $last");