// 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)^Failed password for(?: invalid user)? .+ from (?<ipAddress>(?:\d{1,3}\.){3}\d{1,3}) port \d{1,5} ssh\d?$").unwrap();
let string = "Failed password for invalid user foo bar from 192.168.1.7 port 49721 ssh2";
// 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/