// 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-Za-z]+)(?:-\1)+(?=\b(?!-)|\B)").unwrap();
let string = "wo-wo-wo-wonder -> wonder
hi-hi-hi-hi -> hi
wo-wo-wo -> wo
f-f-f-fight
pre-pre-trained
pre-pre-pretrained
a-a
a-ab
a-b
";
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/