$buffer = ''
    def $buffer.write(str) # create a variable to use in rubyeval 
      self << str
    end
   def rubyeval
     
     require 'English'
#     $tmpout = $stdout # save the original STDOUT
#     $stdout = $buffer
    begin      # begin rescue monitored block	

    commandtextruby = "%s " % [@a_rubyeval]

# @rubydisplay = "hello"
 
 @rubydisplay  = eval( commandtextruby ).to_s

    

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

  end