Gem in a Box
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ruby_parser (3.12.0 - 3.20.1)
gem install ruby_parser -v "3.20.1"gem install ruby_parser -v "3.20.0"gem install ruby_parser -v "3.19.2"gem install ruby_parser -v "3.19.1"gem install ruby_parser -v "3.18.1"gem install ruby_parser -v "3.17.0"gem install ruby_parser -v "3.16.0"gem install ruby_parser -v "3.15.1"gem install ruby_parser -v "3.15.0"gem install ruby_parser -v "3.14.2"gem install ruby_parser -v "3.14.1"gem install ruby_parser -v "3.13.1"gem install ruby_parser -v "3.12.0"ruby_parser (RP) is a ruby parser written in pure ruby (utilizing racc--which does by default use a C extension). It outputs s-expressions which can be manipulated and converted back to ruby via the ruby2ruby gem. As an example: def conditional1 arg1 return 1 if arg1 == 0 return 0 end becomes: s(:defn, :conditional1, s(:args, :arg1), s(:if, s(:call, s(:lvar, :arg1), :==, s(:lit, 0)), s(:return, s(:lit, 1)), nil), s(:return, s(:lit, 0))) Tested against 801,039 files from the latest of all rubygems (as of 2013-05): * 1.8 parser is at 99.9739% accuracy, 3.651 sigma * 1.9 parser is at 99.9940% accuracy, 4.013 sigma * 2.0 parser is at 99.9939% accuracy, 4.008 sigma * 2.6 parser is at 99.9972% accuracy, 4.191 sigma * 3.0 parser has a 100% parse rate. * Tested against 2,672,412 unique ruby files across 167k gems. * As do all the others now, basically.