// 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)(?<=\A|\})(\s*)\{").unwrap();
let string = "a
{
color:black;
background-color:blue;
}
{color:red}
<!-- TEST -->
@media screen and (max-width:620px) {
/* TEST 2 */
a.test {color:blue;}
p[class=\"test2\"] {color:green;}
}";
let substitution = "$1.missing-selector {";
// result will be a String with the substituted value
let result = regex.replace(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/