// 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"(\([^()]*)\(([^()]*)\)").unwrap();
let string = "This is a (string) with lots of (brackets) and (to make ((the fun) complete) some are) even nested.
// after first replace:
This is a (string) with lots of (brackets) and (to make ({the fun} complete) some are) even nested.
foo (bar (spam) and (eggs))
foo (bar {spam} and (eggs))
foo (bar {spam} and {eggs})
foo (bar (spam (ham)) and (eggs))
foo (bar (spam {ham}) and (eggs))
foo (bar {spam {ham}} and (eggs))
foo (bar {spam {ham}} and {eggs})";
let substitution = "\\1{\\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/