The Bison generated C++ parser gets by default the header filename extension ".hh", though GCC seems to use ".h". The idea is not bad, but what is the rationale for using ".hh", and should it not perhaps be synced with the practice on GCC?

By contrast, using ".yy", though not very important, seems to break the idea that the extension name indicates the language of the file contents. - It is essentially the same input language.

  Hans Aberg




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