// 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#"class(?=="(?:field|.*?\sfield|field\s.*?|.*?\sfield\s.*?)")"#).unwrap();
let string = "Ex1: should match both of these:
<div class=\"something else field\">Foo</div>
<div class=\"field something else\">Foo</div>
<span class=\"field\">Bar</span>
<span class=\"foo field bar\">Bar</span>
Ex2: should not match
<div class=\"baseball-field baz\">Baz</div>
";
// 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/