// 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"(?mx)^ # Assert begin of line
(?= # First zero-with lookahead
( # Capturing group 1
a # Match a
(?1)? # Recurse group 1 optionally
b # Match b
) # End of group 1
c+ # Match c one or more times
) # End of the first lookahead
(?= # Second zero-with lookahead
a+ # Match a one or more times
( # Capturing group 2
b # Match b
(?2)? # Recurse group 2 optionally
c # Match c
) # End of group 2
) # End of the second lookahead
a+b+c+ # Match each of a,b and c one or more times
$ # Assert end of line").unwrap();
let string = "abc
aabbcc
aaabbbccc
abbc
aabbc
aabbbccc
ab
aabb
aaabbb";
// 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/