Code: Select all

// Execute function GetListOfFiles() to get a list of file names
// into an ASCII file which is the active file on success.
if (GetListOfFiles(0,"C:\\Temp\\","*.txt")) {

   // Define the line numbers to copy lines from all the files.
   var anLineNumbers = new Array(5,18,34);

   // Select the entire file content of active file which contains all the
   // file names matching the file specification in the specified directory.
   UltraEdit.activeDocument.selectAll();
   // Load this list into a string variable.
   var sFileList = UltraEdit.activeDocument.selection;
   // Close the list file without saving it.
   UltraEdit.closeFile(UltraEdit.activeDocument.path,2);
   // Split the long string with the file names up into an
   // array of strings with each string containing a file name.
   var asFileNames = sFileList.split("\r\n");
   // Remove the last string from the array which is usually an empty string
   // caused by the line termination after last file name in the list file.
   if (!asFileNames[asFileNames.length-1].length) asFileNames.pop();

   // Define an empty string to collect the lines to copy.
   var sLinesToCopy = "";
   // Sometimes like for Unicode encoded files or when different types
   // of line terminators are used in the opened files or in target
   // file, using a clipboard is better than a string variable. But
   // using a string variable is faster than using a clipboard.
   // UltraEdit.selectClipboard(9);
   // UltraEdit.clearClipboard();

   // Run the following loop for all file names in the array of strings.
   for (var nFileNum = 0; nFileNum < asFileNames.length; nFileNum++) {

      // Open the file with the name stored in the array of strings. It
      // is important here that none of the files in the list is already
      // opened in UltraEdit because then this command wouldn't do anything
      // resulting it applying the next steps perhaps on the wrong file.
      // See https://forums.ultraedit.com/viewtopic.php?f=52&t=4596
      // how to verify if a file is already open before opening a file.
      UltraEdit.open(asFileNames[nFileNum]);

      // This loop appends the lines of interest to the string variable
      // or the clipboard. No check is done if the file contains really
      // all those lines because that would make the script slower.
      for(var nLineNum = 0; nLineNum < anLineNumbers.length; nLineNum++) {

         UltraEdit.activeDocument.gotoLine(anLineNumbers[nLineNum],1);
         // if (UltraEdit.activeDocument.currentLineNum != anLineNumbers[nLineNum]) break;
         UltraEdit.activeDocument.selectLine();
         sLinesToCopy += UltraEdit.activeDocument.selection;
         // UltraEdit.activeDocument.copyAppend();
      }
      // Close the file opened just for getting the lines of interest.
      UltraEdit.closeFile(UltraEdit.activeDocument.path,2);
   }
   // Open a new file and paste or write the collected lines into this file.
   UltraEdit.newFile();
   UltraEdit.activeDocument.write(sLinesToCopy);
   // UltraEdit.activeDocument.paste();
   // UltraEdit.clearClipboard();
   // UltraEdit.selectClipboard(0);
   // Move the caret to top for evaluating the result.
   UltraEdit.activeDocument.top();
}