// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r"(?m)'\b([A-F0-9]{2})([A-F0-9]{2})([A-F0-9]{2})([A-F0-9]{2})-([A-F0-9]{2})([A-F0-9]{2})-([A-F0-9]{2})([A-F0-9]{2})-([A-F0-9]{2})([A-F0-9]{2})-([A-F0-9]{12})\b'").unwrap();
let string = "'FE334797-0A46-468D-91F2-0005F1EC67EC'";
let substitution = "X'\\4\\3\\2\\1\\6\\5\\8\\7\\9\\10\\11'";
// result will be a String with the substituted value
let result = regex.replace_all(string, substitution);
println!("{}", result);
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/