// 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)^ *#define +([a-zA-Z][\w]*)\( *([a-zA-Z_]\w*)(?: *, *([a-zA-Z_]\w*) *) *\) *(.+) *$").unwrap();
let string = " #define AD9D9( _Xy_ , Y9_y3 ) x + y + 3";
// 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/