code: function _setWwCodeBlockManagerForChart(editor) {
    const componentManager = editor.wwEditor.componentManager;
    componentManager.removeManager('codeblock');
    componentManager.addManager(class extends WwCodeBlockManager {
      /**
       * Convert table nodes into code block as TSV
       * @memberof WwCodeBlockManager
       * @param {Array.<Node>} nodes Node array
       * @returns {HTMLElement} Code block element
       */
      convertNodesToText(nodes) {
        if (nodes.length !== 1 || nodes[0].tagName !== 'TABLE') {
          return super.convertNodesToText(nodes);
        }
  
        const node = nodes.shift();
        let str = '';
  
        // convert table to 2-dim array
        const cells = [].slice.call(node.rows).map(
          row => [].slice.call(row.cells).map(
            cell => cell.innerText.trim()
          )
        );
  
        const tsvRows = _reduceToTSV(cells);
        str += tsvRows.reduce((acc, row) => acc + `${row}\n`, []);
  
        return str;
      }
    });
  }
docs: override WwCodeBlockManager to enclose pasting data strings from wysiwyg in quotes
  @param {Editor} editor - editor
  @ignore