// 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)^0?$|^(?:0?[1-9]|1[012]?)(?:-(?:(?:0$|0?[1-9]|[12]\d|3[01])(?:-\d{0,4})?)?)?$").unwrap();
let string = "
30-0
30-01-
30-01-2016
30-01-20161
1-30
01-30-
01-30-2016
01-30-20161
2016-
2016-01-
2016-01-30
2016-01-301";
// 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/