// 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)(?<![{\d#])\d+(?![\d}]|st|nd|rd|th)").unwrap();
let string = "123abd //should match 123
abc345 //should match 234
ab2123cd // should match 2123
{2}: Should NOT Match. //My regex Works
{34: Should NOT Match. //My regex matches 4 in {34
45}: Should NOT Match. //My regex matches 4 in {45
{123}: Should NOT Match. //My regex matches 2 in {123}
1st should NOT match
3th should NOT match, since it's wrong anyway
1nd should NOT match, since it's wrong anyway
14th //should NOT Match
14 th should Match
like 1st, 2nd, etc or #1, #2, etc";
// 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/