// 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)(?i)^Invoice[\p{Zs}\t]+Nr\.?\s*(?<arvenumber>[^\W_]+)[\s_]").unwrap();
let string = "...
Some nr_11687767_ other 101308591
Invoice Nr.
M230714_some text
Kirjeldus
...
Sometimes it is terminated by newline
...
This nr_11687767_KMKR_EE101308591
Invoice Nr.
M230714
01.05.2023
Item
...
or by other white space delimiter :
...
Some nr_11687767_ Text
Invoice Nr M230714 Date 01.05.2023
Desc
...";
// 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/