Just as Claude is working in the background to fix any bug it can find in my ancient parser-combinator library in OCaml [0]. It's written in literate programing style, so it's not for everyone (I guess f you love the posted animated slide show, you won't like literate programming :)) but it has some cool features (and, according to Claude, some frightening bugs too): it can parse in stream mode, and it can be given an "error budget" to automatically fix syntax errors (be careful with this, as the complexity goes to the roof so quick I've never benn able to use this feature in any real scenario).

The main advantage of such a parser (and the reason why I'm reviving this one right now) is because they accept syntaxes that most other type of parsers would find ambiguous.

[0]: https://github.com/rixed/ocaml-parsercombinator