menuitem

  pugi::xml_node menu_items_menu_node = menu_items_node.child("menu");
       while( menu_items_menu_node ) {
          /* submenu creation */
          Wt::WPopupMenu *nextLevel = new Wt::WPopupMenu();
          firstLevel->addMenu(menu_items_menu_node.child_value("label"), nextLevel);
          /* iteration over second occurance of items */
          pugi::xml_node menu_items_menu_items_node = menu_items_menu_node.child("items");
          while ( menu_items_menu_items_node ) {
             /* iteration over internal occurance of menuitem */
             pugi::xml_node menu_items_menu_items_menuitem_node = menu_items_menu_items_node.child("menuitem");
             while( menu_items_menu_items_menuitem_node ) {
                //string* tt="haha";
                //nextLevel->addItem(menu_items_menu_items_menuitem_node.child_value("label"));
                nextLevel->addItem(menu_items_menu_items_menuitem_node.child_value("label"),menu_items_menu_items_menuitem_node.child_value("command"))->triggered().connect(this, &MainUI::click);
                menu_items_menu_items_menuitem_node = menu_items_menu_items_menuitem_node.next_sibling("menuitem");
             }
             menu_items_menu_items_node = menu_items_menu_items_node.next_sibling("items");
          }
          menu_items_menu_node = menu_items_menu_node.next_sibling("menu");
       }

       /* iteration over outer occurance of menuitem */
       pugi::xml_node menu_items_menuitem_node = menu_items_node.child("menuitem");
       while ( menu_items_menuitem_node ) {
          firstLevel->addItem(menu_items_menuitem_node.child_value("label"));
          menu_items_menuitem_node = menu_items_menuitem_node.next_sibling("menuitem");
       }