// 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)customers(?=(?:[^><]*<[^<>]*>)*[^><]*$)").unwrap();
let string = "<p class=\"Pa0\" style=\"margin: 0in 0in 0pt;\"><span class=\"A1\"><span style=\"font-size: 10pt;\">Giving this flyer to your class customers</span></span></p>
";
let substitution = "<span style='color: red;'>class<span>";
// result will be a String with the substituted value
let result = regex.replace_all(string, substitution);
println!("{}", result);
}
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/