// 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)\]\s*(AN|AV)\s+1\s+([\w\s]+)\s+2\s+([\w\s]+)\s+3\s+((?=.*\bda cui\b)|(?!=.*\bda cui\b).*)").unwrap();
let string = "] AN 1 campo 2 prato con penna B sps a 1 3 campo con penna C as a 1 cfr Nota filologica
] AN 1 campo 2 prato con penna B sps a 1 3 da cui campo con penna C as a 1 cfr Nota filologica
] AN 1 campo 2 prato con penna B sps a 1 3 da cuio campo con penna C as a 1 cfr Nota filologica
";
// 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/