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haskell / happy

The Happy parser generator for Haskell
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Parse error on empty %token list #107

Open andreasabel opened 7 years ago

andreasabel commented 7 years ago

Happy does not accept the empty list after %token. CUP for instance, can live without terminals.

Is there a reason why an empty token list should not at least be parsed? (I admit there are no sensible grammars if there are no tokens, but: garbage-in-garbage-out.)