The Grammar

Weaknesses

Parsing of comments is flimsy and not perfect, comments in certain areas can cause ambiguity errors which I have not had the time to debug fully. I am considering skipping the parsing of comments for now so as to be able to make the rest of the grammar more robust.

The parsing of the rules is too strict for my taste, but rules are quite a complex piece of this puzzle and I was unable to find a way to recreate the flexible parsing I did for the rest. This would be the first thing to look at in future works since right now a lot of simple errors cause a syntax error rather than raising the errors they're supposed to in the checker.