- Optional operator precedence support (à la yacc, bison) - ✔
- A performance-oriented regex lexer (based on doctrine/lexer) - ✔
- An option to generate a hybrid recursive ascent parser - □
- Compute reduction lookahead by the channel algorithm from yacc instead of the current LALR-by-SLR algorithm - ✔
- Change the analyzer API to allow for grammar debugging (provide access to resolved conflicts, dumping the automaton to DOT ...) - ✔
- Provide classes for dumping the parse table to PHP (both the dev & prod version) - ✔