// 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)|(?:\d{2})|(?:1\d{2})|(?:2[0-4]\d)|(?:25[0-5]))\.){3}(?:(?:(?:\d)|(?:\d{2})|(?:1\d{2})|(?:2[0-4]\d)|(?:25[0-5]))))(?:\b|$)").unwrap();
let string = "123.123.123.145 is an IP4 so is 1.2.3.4 and 1.22.33.44 but 256.1.2.3 isn't 254.1.2.3 is but 260.1.1.1 isn't nor 2.5.256.1 and 1.2.3.4:222";
// 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/