// 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"\b0*1(?=0+~)|\b0+|([0-9])(?=0*~[0-9]*?\1([0-9]))|~[0-9]*").unwrap();
let string = "000~09876543210
0001~09876543210
1~09876543210
2~09876543210
3~09876543210
004~09876543210
10~09876543210
0010~09876543210
0020~09876543210
210~09876543210
438~09876543210
1000~09876543210";
let substitution = "$2";
// 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/