Wie kann ich kommentare in XML files bewahren?

ignoreComments

// WriteXml-b.jsx
// https://www.davidebarranca.com/2013/03/presets-management-with-dropdownlist-and-xml-in-extendscript/
// JavaScript Tools Guide: Modifying XML elements and attributes
#target framemaker

main ();

function main () {
var nItems; 
var oReaderSettings, xmlData, xmlData1, sXmlFile = "WriteXml.xml";                    // file exists in same dir as this script;

xmlData1 =
	<item>
		<name>This shall be a secondand further elements</name>
		<info>The attributes must be filled with js data.</info>
		<options searchMode="Wildcards" word="1" case="0" back="0"  clone="0"/>
		<findtype>Text:</findtype>
		<findstring>*something</findstring>
		<replmode>To Text:</replmode>
		<replstring>$1\t</replstring>
	</item>
/* ---------------------------------------------- this does not work at all
$.bp(true);
oReaderSettings = xmlData.defaultSettings  ();    // xml reader settings ?
oReaderSettings.ignoreComments = false;           // are they keypt ?
xmlData.setSettings (oReaderSettings);            // are these the new settings?
*/

xmlData = GetXMLdata (sXmlFile);                  // the file already contains the root and two items
// ---------------------------------------------- add a complete item
nItems = xmlData.item.length();
xmlData.item[nItems+1] = xmlData1;
WriteXML (xmlData, sXmlFile);                     // write XML object to update the file
// ---------------------------------------------- modify the first item
xmlData.item[0].info = "This has been modified";
WriteXML (xmlData, sXmlFile);                     // write XML object to update the file
// ---------------------------------------------- modify options in the second item
xmlData.item[1].options.@searchMode = "RegEx";
xmlData.item[1].options.@word = "0";
WriteXML (xmlData, sXmlFile);                     // write XML object to update the file
// ---------------------------------------------- Delete the last item from the file
$.bp(true);
nItems = xmlData.item.length();
delete xmlData.item[nItems-1];
WriteXML (xmlData, sXmlFile);                     // write XML object to update the file
} // --- End main --------------------------------

function WriteXML (xmlData, sXmlFile) {
var fXmlFile;   
  fXmlFile = new File($.fileName.replace (/[^\\\/]+$/i , sXmlFile));

  try {
    fXmlFile.open("w");
    fXmlFile.write(xmlData);
    fXmlFile.close();
  } catch (e) {
    alert("" + e.message + "\nThere are problems writing the XML file!");
  }
  return true;
} // --- End WriteXML ----------------------------
 
function GetXMLdata (sXmlFile) { // =======================================================
/*            Read xml data from xml file
Argements     sXmlFile        fully qualified path of xml file or just the file name
              If no filepath is given (no slash or backslash present), 
              then the file is assumed in the same directory as the script
Returns       xml sructure
Usage         xSettings = getXMLdata (sXmlFile);
Called by     SwitchUIlanguage, GetSettingsList
Attention     The language is not yet defined when this function is called by SwitchUIlanguage.
              Therefor error messages need to be localised with the ExtendScript method
Reference     E:\FM-ExtendScript\SaveBookOldVersion\SaveBookAsOldVersion.jsx by Rick Quatro
History       2020-11-11
*/
var fXmlFile, xData, msg_01, msg_02;

  if ((sXmlFile == null) || (sXmlFile == undefined)) {
    return false;
  } else if (sXmlFile.indexOf("/") > 0 || sXmlFile.indexOf("\\") > 0) { // fully qualified path 
    fXmlFile = new File(sXmlFile);            
  } else {                       
    fXmlFile = new File($.fileName.replace (/[^\\\/]+$/i , sXmlFile));  // file in script folder
  }
  if (fXmlFile.exists === false) {  
      msg_01 = { en: "XML file «" + sXmlFile + "» not found.",
                 de: "XML datei «" + sXmlFile + "» nicht gefunden.",
                 fr: "Fichier XML «" + sXmlFile + "» non trouvé."};
      KLD_F.Message ("E", localize (msg_01), "getXMLdata");
      return false;
  }
  fXmlFile.open("r");
  try {
      xData = new XML(fXmlFile.read());
      fXmlFile.close();
      return  xData;
  } catch (e) {                                   // what kind of error can this be ?
      msg_02 = { en: "Read error on XML file «" + sXmlFile + "». Error:\n "+ e,
                 de: "Lesefehler auf XML datei «" + sXmlFile + "» . Fehler:\n "+ e,
                 fr: "Erreur de lecture sur le fichier XML «" + sXmlFile + "». Erreur:\n " + e};
      KLD_F.Message ("E", localize (msg_02), "getXMLdata");
      fXmlFile.close();
      return false;
  }
} //--- end getXMLdata

oXmlSettings = XML.defaultSettings();         // xml reader settings 
oXmlSettings.ignoreComments = false;   
XML.setSettings(oXmlSettings);                              // new settings