// 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)(?P<match_1>chest|test|west|nest)(?: +(?P<match_2>mike|bike|like|pike)(?: +(?P<match_3>hay|day|may|say))?)?").unwrap();
let string = "zzz zzz zz chest bike day zzzz z test mike zzz zzzz west zzz zz
aaa aa aaa a nest aa aaaa aaa nest bike may aaaa aaa
ggg gg ggg ggg ggg test like hay ggg gg west ggg gggg west like ";
// result will be an iterator over tuples containing the start and end indices for each match in the string
let result = regex.captures_iter(string);
for mat in result {
println!("{:?}", mat);
}
}
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/