$buffer = ''
    def $buffer.write(str) # create a variable to use in rubyeval 
      self << str
    end
   def rubyeval
     require 'Env'
     require 'English'
    commandtextruby = "%s " % [@a_rubyeval]
     $tmpout = $stdout # save the original STDOUT
     $stdout = $buffer
    begin      # begin rescue monitored block	
	eval( commandtextruby )

        @rubydisplay = $stdout
    
    $stdout = $tmpout # restore STDOUT to normal
        
	rescue # process exeption
	$stdout = $tmpout # restore STDOUT to normal
	 @rubydisplay = "\n" + "error in eval"
	 end # end of rescue process  # of rescure monitored block        
	

  end