# File r4tw.rb, line 483
  def source_empty(empty_file,&block)
    @empty_file = empty_file
    if empty_file =~ /^https?/
      @raw = fetch_url(@empty_file)
    else
      @raw = read_file(@empty_file)
    end

    # stupid ctrl (\r) char

    #@raw.eat_ctrl_m!


    if @raw =~ /var version = \{title: "TiddlyWiki", major: 2, minor: 2/
      @use_pre = true
    end

    @core_hacks = []
    @orig_tiddlers = get_orig_tiddlers
    @tiddlers = @orig_tiddlers
      
    instance_eval(&block) if block
    
    self
  end