// 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"(?:(da|en-gb|en|\*))(?!.*\1(?!-))(?:;q=(?:1|0(\.\d+)?))?(?:,(da|en-gb|en|\*)(?!.*\3(?!-))(?:;q=(?:1|0(?:\.\d+)?))?)*").unwrap();
let string = "enenen-gben
enenenen-gb
Accept-Language: da, en-gb;q=0.8, en;q=0.7
en;q=0,da;q=0.4,*;q=0.4,da;q=0.4";
// 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/