Ruby_parser 3.1.0 Released

ruby_parser version 3.1.0 has been released!

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


s(:defn, :conditional1, s(:args, :arg1),
s(:call, s(:lvar, :arg1), :==, s(:lit, 0)),
s(:return, s(:lit, 1)),
s(:return, s(:lit, 0)))


3.1.0 / 2012-12-06

  • 2 minor enhancements:

    • Added RubyParser.for_current_ruby to provide a parser that matches
      your runtime. (neilconway)
    • Duck-typed IDENT_CHAR_RE instead of using RUBY_VERSION
  • 3 bug fixes:

    • Cleared out body comments in class/module/defn/defs
    • Flipped lexer tests to US-ASCII to avoid encoding hell
    • yyerror is now an alias for syntax_error