# File rexml/output.rb, line 3
    def initialize real_IO, encoding="iso-8859-1"
      @output = real_IO
      case encoding
      when /^iso-8859-1$/i
	instance_eval "alias :encode :iso_8859_1"
      when /^utf-16$/i
	instance_eval 'alias :encode :utf_16'
      when /^unile$/i
	instance_eval 'alias :encode :unile'
      end
    end