anchor.diff:  
     EntityContainer(this.entities) : _scopes = new Map<String, Object>() {
       _fragment = new DocumentFragment();
  +    
       var containerTable = new Element.html("""
           <table>
             <caption>Container</caption>
  
positive.code:     document.body.elements.add(layout.root);
      
      entityLister.preinit();
      entityLister.initContainer();
      
      
  
  
      entityLister.init();
      entityLister.refreshSymbolList();
  
  }
  
  
negative.code: </fieldset>
  """);
      
  
      
      app.nodes.add(controls);
  
      app.nodes.add(h1);
  }
  
  TableSectionElement tbody;
  TableCellElement totalSymbols;
  TableCellElement decimalRange;
  
  void refreshSymbolList() {
    final InputElement symFrom = document.body.query('#symbolFrom');
    final InputElement symTo = document.body.query('#symbolTo');
    
       final int symbolFromNum = Math.parseInt(symFrom.value);
       final int symbolToNum = Math.parseInt(symTo.value);
  