// 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)(?<!-)\b[1-9]\d*\s+(left|remaining)").unwrap();
let string = "0 left
1 left
2 left
3 left
0 remaining
1 remaining
2 remaining
you have 3 left
(13 left)
there are 12 remaining today
You have (-12 left) today
There are (3 left)
-15 remaining today
you have -24 left today";
// result will be an iterator over tuples containing the start and end indices for each match in the string
let result = regex.captures_iter(string);
for mat in result {
println!("{:?}", mat);
}
}
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/