// 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)(^[^:]+:|\G(?!^))\h*([^,\r\n]+),?").unwrap();
let string = "Shapes: circle, rectangle, triangle
Junk line: this part, here, should work, but: make sure, that last colon, isn't caught
One: two, three
Yellow: Blue, Green";
let substitution = "$1\\n$2";
// 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/