// 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)(?=this|that|other)(?>\s*(?:(?(1)(?!))\bthis\b()|(?(2)(?!))\bthat\b()|(?(3)(?!))\bother\b()|(?(4)(?!))\b(.+?)\b|(?(5)(?!))\b(.+?)\b|(?(6)(?!))\b(.+?)\b|(?(7)(?!))\b(.+?)\b|(?(8)(?!))\b(.+?)\b|(?(9)(?!))\b(.+?)\b)\s*){3,9}?(?=\1\2\3)").unwrap();
let string = "looking for this and that and some other thing
that rod is longer than this other one
other than this, I have nothing
ignore multiple words not before this and that or other
this and that or other, followed by a bunch of words
looking at this and A B C that some of other thing";
// 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/