// 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"(?<number>(?<!\.)\d+(?:\.\d+)?|(?<![\d.])(?:\.\d+)(?!\.))(?<termination>\s*[-+)])").unwrap();
let string = "cos(3 * 3) + cos(3 * 24.5 ), cos(2 * 3 ) + cos(3 * .2.4)
cos(3 * 3.4) + cos(3 * 45 ), cos(4 * .24) + cos(3 * 245 )
(3 *(2 + 1 + 1) - 23/5 )
3 * (1571 - sin(12))";
let substitution = "$1deg$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/