// 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">(occurence(?:\s(?:[\w']+),?){0,100})|((?:\s(?:[\w']+)){0,100}\s?occurence(?:\s(?:[\w']+),?){0,100})|((?:\s(?:[\w',]+)){0,100}\s?occurence)<").unwrap();
let string = "<p>Do not forget the error handling, I don't exactly know what happens if it wants to replace an occurence and can't find it</p>
<p>Edit: If you have multiple entries which should be replaced, loop the replace part until it will not be able to replace anymore then it will throw an error you can catch to continue</p>";
// result will be a tuple containing the start and end indices for the first match in the string
let result = regex.captures(string);
let (start, end) = match result {
Some((s, e)) => (s, e),
None => {
// ...
}
};
println!("{}", &string[start, end]);
}
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/