// 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"%a+").unwrap();
let string = "HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/plain; charset=utf-8
X-AspNet-Version: 4.0.30319
Date: Sat, 13 Feb 2016 19:33:11 GMT
Content-Length: 6
|on||30|";
// result will be a tuple containing the start and end indices for the first match in the string
let result = regex.captures(string);
let (start, end) = match result {
Some((s, e)) => (s, e),
None => {
// ...
}
};
println!("{}", &string[start, end]);
}
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/