// 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)^[a-zA-Z](?!.*(['-]).*\1)(?!.* )(?=.{0,19}$)[a-zA-Z0-9'-]*(?: (?<=[a-zA-Z] )[a-zA-Z][a-zA-Z0-9'-]*)*$").unwrap();
let string = "This is aa
This is aa test
aa aa aa aa aa aa aa
This should m'atch
This a-lso'
This is a test
a b
aa
a
This is aa test
This' is aa tes
This is aaaa longer test
This sh'o'uld not
This sh-o-uld not
";
// 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/