// 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)(?im)^(?!$)(?:(Question|Problem:?|Example|[A-Z])[. ]?)?(\d+[. ]?)?(?=\s)").unwrap();
let string = "Q 12. This is question 1
Example 1 This is question 2 Q.1
Example This is question 3
EXAMPLE 2 This is question 4 2.3
Q.12. This is question 5
5.
Q 55.
Q 555
Q.555.
55555
Question 5555
Example
Problem 5555
Problem:
A5555.
EXAMPLE
Example 5555555";
// 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/