From: Ryan Davis <ryand-ruby@...>
Date: 2012-10-23T08:46:26+09:00
Subject: [ANN] ruby_parser 3.0.0.a9 Released

ruby_parser version 3.0.0.a9 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.a9 / 2012-10-22

Holy crap! I've hit a 99.92% success rate against 558k files! 492
failed parses to go. NOW is the time to start testing ruby_parser
against your code!

* 16 minor enhancements:

  * 1.9 parser: Finished magic encoding and utf-8 bom support.
  * 1.9: Added leading dot support eg "a\n.b".
  * 1.9: Added partial handling for *arg and opt=val args in block args.
  * 1.9: OMFG Encoding is the worst thing ever. Overhauled encoding support once again. It is much better at doing last ditch guessing of the encoding of the source file. 
  * 1.9: added String#grep for legacy support.
  * Added Sexp#block_pass?
  * Added ability to delete slow files when they timeout.
  * Added block_dup_check and refactored grammar code to use it for block arg handling.
  * Added in_lex_state?(*states) to clean up lexer code.
  * Added tentative support for optional block args. THIS IS SUBJECT TO CHANGE!!
  * Added toggleable debugging to StackState to make my life easier
  * All untested uses have not moved but have been laced with poison. 
  * Finally got good tests for most forms of double-block arg errors.
  * Moved all _known_ uses of SyntaxError to RubyParser::SyntaxError
  * f_block_optarg now always returns a block node.
  * ruby_parse_extract_error uses Find.find instead of globbing so dot files aren't missed.

* 12 bug fixes:

  * 1.9: Completely ignore IndexError in unread_many because... you know... it sucks.
  * 1.9: Fixed lex state after lexing ? in trinary.
  * 1.9: Fixed lex state in some ternarys.
  * 1.9: Fixed parsing of "1 ? b('') : 2\na d: 3"... ARE YOU NOT GLAD?!?!
  * Fix Timeout differences between 1.8 and 1.9 :(
  * Fixed emacs-style encodings to deal with no whitespace.
  * Fixed error message for bad % codes. (whitequark)
  * Fixed lexing of :a==>b vs :a===b vs :a==>b. P.S. Your space bar is broken. chump.
  * Fixed lexing of rare numeric formats.
  * Fixed magic comment encodings on DOS files ... :/
  * Fixed ruby_parse_extract_error to exit non-zero on errors.
  * Removed Symbol#is_argument and switch usage to is_arg?