names=RUBY_ENGINE
visibility=private 
kind=defined

--- RUBY_ENGINE -> String
Ruby処理系実装の種類を表す文字列。

例:
  $ ruby-1.9.1 -ve 'p RUBY_ENGINE'
  ruby 1.9.1p0 (2009-03-04 revision 22762) [x86_64-linux]
  "ruby"
  $ jruby -ve 'p RUBY_ENGINE'
  jruby 1.2.0 (ruby 1.8.6 patchlevel 287) (2009-03-16 rev 9419) [i386-java]
  "jruby"


