Thanks for your efforts on putting this together. Your examples really help out!
First, thank you for the kind words and I am glad you found them helpful.
Second, I have recently changed jobs so updates have slowed down until can I attain a level of comfort in my new position; however, I do plan to finish what I started.
Finally, I am currently working on the ‘Interpreter” pattern that contains a fair amount of language constructs (which is one reason it is taking longer than I thought). Moreover, I am creating two examples of this pattern, with and without an associated ‘Visitor’ pattern.