// 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"(one|three|four)\s*,\s*(?!\1)(one|three|four)\s*,\s*(?!\1|\2)(one|three|four)").unwrap();
let string = "one,three,four apple is red. should be match
four, three, one orange is orange. should be match
one,four,three the sky is blue. should be match
one,two,four,three should not be match because two is between the group of words
four,one,eight,green,three also not because eight and green is between the group of selected words";
// 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/