搜索并突出显示多个单词-Google App脚本

Question

我是Google App脚本的新手，

我要做的就是允许用户在工作表中使用多个关键字（用“，”分隔）进行搜索，然后突出显示这些关键字。

例如：宝马，本田，雅马哈=>用户输入3个关键字，然后按“搜索”，光标将跳入带有突出显示的那些关键字。

它看起来像这段代码，但我不知道该怎么做：

    function highlightText(target,background) {
  // If no search parameter was provided, ask for one
  if (arguments.length == 0) {
    var ui = DocumentApp.getUi();
    var result = ui.prompt('Text Highlighter',
      'Enter text to highlight:', ui.ButtonSet.OK_CANCEL);
    // Exit if user hit Cancel.
    if (result.getSelectedButton() !== ui.Button.OK) return;
    // else
    target = result.getResponseText();
  }
  var background = background || '#F3E2A9';  // default color is light orangish.
  var doc = DocumentApp.getActiveDocument();
  var bodyElement = DocumentApp.getActiveDocument().getBody();
  var searchResult = bodyElement.findText(target);

  while (searchResult !== null) {
    var thisElement = searchResult.getElement();
    var thisElementText = thisElement.asText();

    //Logger.log(url);
    thisElementText.setBackgroundColor(searchResult.getStartOffset(), searchResult.getEndOffsetInclusive(),background);

    // search for next match
    searchResult = bodyElement.findText(target, searchResult);
  }
}

/**
 * Create custom menu when document is opened.
 */
function onOpen() {
  DocumentApp.getUi().createMenu('Custom')
      .addItem('Text Highlighter', 'highlightText')

      .addToUi();
}