// 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)((?<pad>\A[^"]*"[^"]*?|\G[^"{}]*|\G"[^"]*")(((?<start>\{%)-(?<content>[^"]*?)-(?<end>%\}))|(?<pad2>[^"{}%]*)))"#).unwrap();
let string = "<span foo=\"bar\" class=\"{%- if foo == true -%} blue{%- else -%} red{%- endif -%}\">item {%- DONT TOUCH THIS - IT IS NOT IN QUOTES -%} </span> \"rs gs{%- Replace this, it is in quotes -%} afeafe\"";
let substitution = "${pad}${pad2}${start}${content}${end}";
// 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/