This is tnac - Totally (Absolutely, Positively, Definitely) Not Another Calculator. Well, except it kind of is.

This project was a challenge to myself, and it is basically an answer to the question: "Were I to write a compilery thing, what would it be, and how crazy would I be able to make it?"

At any rate, it's been a good excersice on writing parsers.

At this point, the thing looks like a programming language and is evolving into one. For those interested in details, see a more verbose description in the wiki.