// 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)type(?!3\.)\d+\.value(\d+)=\K\d+(?=[\s\S]*?type3\.value\1=(\d+))").unwrap();
let string = "type1.value1=60
type1.value2=15
type2.value1=50
type2.value2=18
type3.value1=72
type3.value2=14";
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/