TatSu: TatSu (takes grammars in a variation of EBNF memoizing PEG parsers) TatSu: TatSu: TatSu is a tool that takes grammars in a variation of EBNF as input TatSu: and outputs memoizing (Packrat) PEG parsers in Python. TatSu: TatSu: TatSu: TatSu: TatSu: TatSu: TatSu: