How do I split a large xml file?

Question

We export “records” to an xml file; one of our customers has complained that the file is too big for their other system to process. Therefore I need to split up the file,

Answer 1

Using Ultraedit based on https://www.ultraedit.com/forums/viewtopic.php?f=52&t=6704

All I added was some XML header and footer bits The first and last file need to be manually fixed (or remove the root element from your source).

    // from https://www.ultraedit.com/forums/viewtopic.php?f=52&t=6704 

var FoundsPerFile = 200;      // Global setting for number of found split strings per file.
var SplitString = "";  // String where to split. The split occurs after next character.
var xmlHead = '';
var xmlRootStart = '';
var xmlRootEnd = '';

/* Find the tab index of the active document */
// Copied from http://www.ultraedit.com/forums/viewtopic.php?t=4571
function getActiveDocumentIndex () {
   var tabindex = -1; /* start value */

   for (var i = 0; i < UltraEdit.document.length; i++)
   {
      if (UltraEdit.activeDocument.path==UltraEdit.document[i].path) {
         tabindex = i;
         break;
      }
   }
   return tabindex;
}

if (UltraEdit.document.length) { // Is any file open?
   // Set working environment required for this job.
   UltraEdit.insertMode();
   UltraEdit.columnModeOff();
   UltraEdit.activeDocument.hexOff();
   UltraEdit.ueReOn();

   // Move cursor to top of active file and run the initial search.
   UltraEdit.activeDocument.top();
   UltraEdit.activeDocument.findReplace.searchDown=true;
   UltraEdit.activeDocument.findReplace.matchCase=true;
   UltraEdit.activeDocument.findReplace.matchWord=false;
   UltraEdit.activeDocument.findReplace.regExp=false;
   // If the string to split is not found in this file, do nothing.
   if (UltraEdit.activeDocument.findReplace.find(SplitString)) {
      // This file is probably the correct file for this script.
      var FileNumber = 1;    // Counts the number of saved files.
      var StringsFound = 1;  // Counts the number of found split strings.
      var NewFileIndex = UltraEdit.document.length;
      /* Get the path of the current file to save the new
         files in the same directory as the current file. */
      var SavePath = "";
      var LastBackSlash = UltraEdit.activeDocument.path.lastIndexOf("\\");
      if (LastBackSlash >= 0) {
         LastBackSlash++;
         SavePath = UltraEdit.activeDocument.path.substring(0,LastBackSlash);
      }
      /* Get active file index in case of more than 1 file is open and the
         current file does not get back the focus after closing the new files. */
      var FileToSplit = getActiveDocumentIndex();
      // Always use clipboard 9 for this script and not the Windows clipboard.
      UltraEdit.selectClipboard(9);
      // Split the file after every x found split strings until source file is empty.
      while (1) {
         while (StringsFound < FoundsPerFile) {
            if (UltraEdit.document[FileToSplit].findReplace.find(SplitString)) StringsFound++;
            else {
               UltraEdit.document[FileToSplit].bottom();
               break;
            }
         }
         // End the selection of the find command.
         UltraEdit.document[FileToSplit].endSelect();
         // Move the cursor right to include the next character and unselect the found string.
         UltraEdit.document[FileToSplit].key("RIGHT ARROW");
         // Select from this cursor position everything to top of the file.
         UltraEdit.document[FileToSplit].selectToTop();
         // Is the file not already empty?
         if (UltraEdit.document[FileToSplit].isSel()) {
            // Cut the selection and paste it into a new file.
            UltraEdit.document[FileToSplit].cut();
            UltraEdit.newFile();
            UltraEdit.document[NewFileIndex].setActive();
            UltraEdit.activeDocument.paste();


            /* Add line termination on the last line and remove automatically added indent
               spaces/tabs if auto-indent is enabled if the last line is not already terminated. */
            if (UltraEdit.activeDocument.isColNumGt(1)) {
               UltraEdit.activeDocument.insertLine();
               if (UltraEdit.activeDocument.isColNumGt(1)) {
                  UltraEdit.activeDocument.deleteToStartOfLine();
               }
            }

            // add headers and footers 

            UltraEdit.activeDocument.top();
            UltraEdit.activeDocument.write(xmlHead);
                        UltraEdit.activeDocument.write(xmlRootStart);
            UltraEdit.activeDocument.bottom();
            UltraEdit.activeDocument.write(xmlRootEnd);
            // Build the file name for this new file.
            var SaveFileName = SavePath + "LETTER";
            if (FileNumber < 10) SaveFileName += "0";
            SaveFileName += String(FileNumber) + ".raw.xml";
            // Save the new file and close it.
            UltraEdit.saveAs(SaveFileName);
            UltraEdit.closeFile(SaveFileName,2);
            FileNumber++;
            StringsFound = 0;
            /* Delete the line termination in the source file
               if last found split string was at end of a line. */
            UltraEdit.document[FileToSplit].endSelect();
            UltraEdit.document[FileToSplit].key("END");
            if (UltraEdit.document[FileToSplit].isColNumGt(1)) {
               UltraEdit.document[FileToSplit].top();
            } else {
               UltraEdit.document[FileToSplit].deleteLine();
            }
         } else break;
            UltraEdit.outputWindow.write("Progress " + SaveFileName);
      }  // Loop executed until source file is empty!

      // Close source file without saving and re-open it.
      var NameOfFileToSplit = UltraEdit.document[FileToSplit].path;
      UltraEdit.closeFile(NameOfFileToSplit,2);
      /* The following code line could be commented if the source
         file is not needed anymore for further actions. */
      UltraEdit.open(NameOfFileToSplit);

      // Free memory and switch back to Windows clipboard.
      UltraEdit.clearClipboard();
      UltraEdit.selectClipboard(0);
   }
}