On 26 Jun 2009, at 00:20, Paul Hilfinger wrote:

Has anyone considered adding extended BNF to Bison?

We discussed it back in 2006, on this list I think, and I posted the formulas here:
  http://lists.gnu.org/archive/html/bug-bison/2006-03/msg00013.html

But I don't think it is on the immediate agenda :-). Though it would probably be good, for the recursion, to get it left, for example.

Wasn't there a Berkeley Bison that had it? - I think I saw something that on your pages.

  Hans




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