// 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))(?!1?\d{10}@)(\w[\w\.]*@\w+\.[\w\.]+)\b").unwrap();
let string = "123456789@test.com // allowed (9 digits or less)
01234567890@test.com // allowed (11 digits but not starting with 1)
123456789012@test.com // allowed (12 digits or more)
0123456789@test.com // NOT allowed (10 digits)
11234567890@test.com // NOT allowed (11 digits and starting with 1)";
// 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/