// 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)<mrow[^>]*>\(?((?:(?!</?mrow\b[^>]*>).)*?)\)?</mrow>").unwrap();
let string = "<msub><mi>y</mi><mrow>(<mi>n</mi><mo>+</mo><mn>1</mn>)</mrow></msub><mo>=</mo><msub><mi>y</mi><mrow>(<mi>n</mi><mo>-</mo><mn>1</mn>)</mrow></msub><mo>*</mo><msup><mrow>(<msub><mi>y</mi><mi>n()</mi></msub>)</mrow><mrow><mn>2</mn></mrow></msup>
<mrow>(<mn>1000001</mn>)</mrow>";
// 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/