// 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"^(?<time>\d{4}-\d{1,2}-\d{1,2} \d{1,2}:\d{1,2}:\d{1,2}.\d{3})\s+(?<level>[^\s]+)\s+(?<pid>\d+).*?\[\s+(?<thread>.*)\]\s+(?<class>.*)\s+:\s+(?<message>.*)").unwrap();
let string = "2016-01-11 16:14:32.474 INFO 1 --- [ main] fluentd.FluentdBootApplication : Starting FluentdBootApplication on 750117306ae6 with PID 1 (/app.jar started by root in /)
";
// 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/