// 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)^(\d+)\h+-\h+\1$").unwrap();
let string = "9993990487 - 9993990487
9993990553 - 9993990553
9993990554 - 9993990559
9993990570 - 9993990570
9993990593 - 9993990596
9993990594 - 9993990594";
let substitution = "$1";
// 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/