// 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)(\(|,)(\s{0,})([a-zA-Z0-9_?\\]{0,}\s{0,}&{0,}\$[a-zA-Z0-9_]+\s{0,}=\s{0,}[a-zA-Z0-9_'"\[\]]+)(,\s{0,})([a-zA-Z0-9_?\\]{0,}\s{0,}&{0,}\$[a-zA-Z0-9_]+)(\n\s{0,}){0,}(\)|,)"#).unwrap();
let string = "";
let substitution = "$1$2$5$4$3$6$7";
// 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/