// 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)^(\S+) (?=(?s:.)*(\1.*)).*").unwrap();
let string = "user1 jul/12/12
user5 jul/13/13
user1 jul/14/12
user1 jul/12/12
user5 jul/13/13
user1 jul/14/12
user3 jan/12/12
user1 jul/12/12
user5 jul/13/13
user1 jul/14/12
user1 jul/12/12
user5 jul/13/13
user1 jul/14/12
user1 jul/12/12
user6 aug/06/06
user5 jul/13/13
user1 jul/14/12
user1 jul/12/12
user5 jul/13/13
user1 jul/14/12
user1 aug/12/12
user5 feb/13/13
user1 dec/14/12
user1 jul/12/12
user5 jul/13/13
user1 jul/14/12
user2 jun/15/14";
// 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/