// 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"\b((?(?<=\d{4})-?|)(\d)(?!\2{3}|\2{2}-\2|\2-\2{2}|-\2{3})){16}\b").unwrap();
let string = "5123-4567-8912-3456
6123456789123456
4123356789123456
5133336789123456
1234567890134443
123-4567-8901-23456
1234-4567890123456";
// 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/