// 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"^-?[1-9]*(?!0000)[0-9]{4}-(?:0[0-9]|1[0-2])-(?:0[1-9]|[1-2][0-9]|3[0-1])T(?:(?:[0-1][0-9]|2[0-3]):(?:[0-5][0-9]):(?:[0-5][0-9])(?:\.[0-9]*[1-9]+)?|24:00:00)(?:(?:\+|-)(?:(?:0[1-9]|1[0-3]):[0-5][0-9]|14:00)|Z)?").unwrap();
let string = "2015-12-31T23:00:00.34-13:33";
// 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/