- [X] running learned commands: push the corresponding compiled struct
- [X] parsing from text
- [X] repeat 0 x - fails to parse
- [X] add version to grid files
- [X] for “expected” in exceptions, parser should provide a nicer messages than “octothorpe” etc.
- [ ] parser should report core commands, so we can deparse
- [X] change comments so they can occur wherever whitespace can
- [X] report unknown commands from parsing
- [X] several parsers: English and Czech
- [ ] refactor stack to a class (weak?)
- [ ] refactor knowledge to a class?
- [ ] GUI