[ANN] ruby_parser 3.2.2 Released

ruby_parser version 3.2.2 has been released!

* home: <https://github.com/seattlerb/ruby_parser>
* rdoc: <http://docs.seattlerb.org/ruby_parser>
* bugs: <https://github.com/seattlerb/ruby_parser/issues>

ruby_parser (RP) is a ruby parser written in pure ruby (utilizing
racc--which does by default use a C extension). RP's output is
the same as ParseTree's output: s-expressions using ruby's arrays and
base types.

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

Changes:

### 3.2.2 / 2013-07-11

* 5 bug fixes:

  * 1.9/2.0: fixed assocs in return args. (presidentbeef)
  * Fixed handling of parse error when class is nested in multiple defs. (whitequark)
  * Fixed lexing of %w[] w/ funny whitespace separators. (whitequark)
  * Fixed more call nodes that have trailing comma syntax. (presidentbeef)
  * Fixed more call_args slippage.