- [ ] Finalize support for error messages based upon: [A Parsing Machine for Parsing Expression Grammars with Labeled Failures](https://dl.acm.org/doi/10.1145/2851613.2851750)
- [ ] Try to introduce registers like in `ParsleyHaskell`.
- [ ] Move the `Symantic.Typed.*` modules into a separate package, maybe `symantic-base`.
- [ ] Support parsing tree inputs (eg. RelaxNG in `symantic-xml` or HTTP routing in `symantic-http-server`).
- [ ] Study how the generated parser can be made reentrant like `attoparsec`'s `Partial`.
In which case it would be able to replace `attoparsec` in `pipes`.
- [ ] Golden tests using more complex grammars.