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I've never done Bison or Wisent before. how can I get started? My real goal is to produce a working Wisent/Semantic grammar for C#, to allow C# to be edited in emacs with code-completion, and all the other CEDET goodies. (For those who don't know, Wisent is a emacs-lisp port of GNU Bison , which is included into CEDET. The Wisent apparently is a European Bison. And Bison, I take it, is a play-on-words deriving from YACC . And CEDET is a Collection of Emacs Development Tools. All caught up? I'm not going to try to define emacs. ) Microsoft provides the BNF grammar for C#, including all the LINQ extensions, in the language reference document . I was able to translate that into a .wy file that compiles successfully with semantic-grammar-create-package . But the compiled grammar doesn't "work". In some cases the grammar "finds" enum declarations, but not class declarations. Why? I don't know. I haven't been able to get it to recognize attributes. I'm not finding the "debugging" of the grammar to be very easy. I thought I'd take a step back and try to produce a wisent grammar for a vastly simpler language, a toy language with only a few keywords. Just to sort of gain some experience. Even that is proving a challenge. I've seen the .info documents on the grammar fw, and wisent, but... still those things are not really clarifying for me, how the stuff really works. So Q1 : any tips on debugging a wisent grammar in emacs? Is there a way to run a "

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