use regex::Regex;

fn main() {
    let re = Regex::new(r"\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b").unwrap();
    let text = "Contact us at info@rust-lang.org or support@rust-lang.org.";
    for cap in re.captures_iter(text) {
        println!("Found email: {}", &cap[0]);
    }
}