tiara | Tiny IP Address Registry API Server | Continuous Deployment library

You don't need d.items(), you can just access the id and name properties of each dict.

I may not have the quiet right answer but, I think the problem comes from the way you are getting your cell inside collectionView(didSelectItemAt:).

You are using the dequeueReusableCell instead of using cellForItem(at:) for getting your cells. So you are creating a reusable cell and not getting the one you are interested in.

You need a regex that will have two main alternative branches: one will match the context you want to avoid modifying, and the other will match your variable text. Capture one of them to be able to apply different replacement logic later:

If I understood right how Lingo goes, the letter what you typed (like 4th) should get green/yellow/red background. Now, the place where the letter should be gets the yellow background. Because of this, the yellow color is sometimes in wrong place (and in some cases some letters' background stays white).

Fixed code: