From: Ryan Davis <ryand-ruby@...>
Date: 2012-11-03T03:26:25+09:00
Subject: [ANN] ruby_parser 3.0.0 Released

ruby_parser version 3.0.0 has been released!

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

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)))

Changes:

### 3.0.0 / 2012-11-02

I've hit 99.967% success rate against 558k files! 3.6σ!! 182 files
failed to parse and spot checking them shows that they're pretty much
lost causes. I'm sure I missed some stuff, but it is more important at
this point to release a version to get more people using it in more
diverse ways than I can come up with.

* 3 minor enhancements:

  * Added RBStringScanner#charpos using #string_to_pos.
  * Added RBStringScanner#string_to_pos using String#byteslice.
  * Optimized regexp used for escape chars in strings. (presidentbeef)

* 3 bug fixes:

  * Fixed current_line and unread_many depending on StringScanner#pos
  * Fixed parsing of 'a[] = b'
  * Fixed the worst abuse of heredocs EVER. Just because it is valid doesn't mean you should.