// 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)^path(?:(?=\?)(?:[?&]foo=(\d*)(?=[&#]|$)|(?![?&]foo=)[^#\n])+)?(?=#|$)").unwrap();
let string = "path
pathbreak
path?foo=123
path?foo=-123
invalid?foo=1
path?foo=123&bar=abc
path?bar=abc&foo=123
path?bar=foo
path#anchor
path#foo=bar
path?foo=123#bar
path?foo=123abc
path?foo";
// 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/