Self Reply: I just now thought to use Copilot to get my regex and wow! I described it in a comment and it printed me one that was only two characters off, and now I have what I needed yesterday. I'd since solved the problem without a regex.
It's not perfect, but sometimes its amazing. In your case, not only did it provide the right solution, but it was about as fast as theoretically possible. About as fast as if you already knew the answer.
I had a similar experience with a shell command. Searched google, looked at a few posts, wasnt exactly what I needed but close. Modified it a few times and got it working. Went to save the command in a markdown file and when I explained what the command did, copilot made a suggestion for it. It was correct and also much simpler.
It went from taking 5-10 minutes to stumble through something just so I could do the thing I really wanted to do, to finding the answer instantly all from within the IDE. Can keep you in flow.
