Example
extern crate regex;
use regex::Regex;
fn main() {
let rg = Regex::new(r"(\d+)").unwrap();
// Regex::replace replaces first match
// from it's first argument with the second argument
// => Some string with numbers (not really)
rg.replace("Some string with numbers 123", "(not really)");
// Capture groups can be accesed via $number
// => Some string with numbers (which are 123)
rg.replace("Some string with numbers 123", "(which are $1)");
let rg = Regex::new(r"(?P<num>\d+)").unwrap();
// Named capture groups can be accesed via $name
// => Some string with numbers (which are 123)
rg.replace("Some string with numbers 123", "(which are $num)");
// Regex::replace_all replaces all the matches, not only the first
// => Some string with numbers (not really) (not really)
rg.replace_all("Some string with numbers 123 321", "(not really)");
}
