mxcl/homebrew — pull request #18774 by aisk (2013-03-27 16:13:13+00:00)
Title: add bnfc formula

I want use [bnfc](http://bnfc.digitalgrammars.com/) in osx, and not found it in homebrew, so I create this Formula, hope you can merge it.
And I am sorry that I am a noob for homebrew, plz point out any things I'm mistaken : )