paste_node_appending

# File ext/json/lib/json/editor.rb, line 321
      def paste_node_appending(item)
        if current = selection.selected
          if @clipboard_data
            case current.type
            when 'Array'
              Editor.data2model(@clipboard_data, model, current)
              expand_collapse(current)
            when 'Hash'
              if @clipboard_data.is_a? Hash
                parent = current.parent
                hash = Editor.model2data(current)
                model.remove(current)
                hash.update(@clipboard_data)
                Editor.data2model(hash, model, parent)
                if parent
                  expand_collapse(parent)
                elsif @expanded
                  expand_all
                end
                window.change
              else
                toplevel.display_status(
                  "Cannot paste non-#{current.type} data into '#{current.type}'!")
              end
            else
              toplevel.display_status(
                "Cannot paste node below '#{current.type}'!")
            end
          else
            toplevel.display_status("Nothing to paste in clipboard!")
          end
        else
            toplevel.display_status("Append a node into the root first!")
        end
      end