// 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"(?=(\d{1,3}\.){3}\d{1,3})((?:(2[0-5]{2}|[1]?\d{1,2}))\.){3}(?:(2[0-5]{2}|[1]?\d{1,2}))(?![\.\d])").unwrap();
let string = "1.2.3.4 255.100.196.123 256.100.203.1 1.2.3.4 1.2.3.4.5 123.456.78.90 123.45.67.89
";
// 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/