Tokens from "internal" rules end up in Lexer

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Tokens from "internal" rules end up in Lexer #204

Closed andreasabel closed 5 years ago

andreasabel commented 7 years ago

Consider this grammar:

internal Internal. Prg ::= "Internal";
Main. Prg ::= Ident ;

The generated parser fails to parse the input Internal, which should be an ok identifier. Concerns at least Haskell and Java backends, I have not tested the others.