Script To Strip Filename Down To 4 Characters And Automatically Save

Question

I touch up a bunch of files and after finishing the touch ups, I save it with a different filename. I found it easier to save the file by stripping the name down to 4 characters and save it using a script instead of manually renaming and saving the file.  When the file has 4 characters, it means I touched up the file already. My problem is that not all files have 8 characters, and my script below will rename the file by simply dropping the first 4 characters from the left. So it will end up only 3 characters left if it is a 7 character file. I want a script that will make consistent 4-character filename from the right of the file extension. The script is added below.
// FILENAME STRIPPER FOR TOUCH UPS
// For now, this will strip a file with 8-characters filename leaving 4 characters after it saves the file.
// Defines the Active Document
var AD = app.activeDocument;
// Determine end of file name without type suffix
    var myFileEnd = AD.name.lastIndexOf(".");
    var myFile = AD.name.substring(0,myFileEnd);
// I WANT TO ADD A CHARACTER-LENGTH CHECKER HERE such that if the filename is
// 4 characters, then simply save the document. If there is less than 4 characters, add a prefix 
// 0 or 00 depending on the number of  missing characters on a standandard 4-character filename, 
// If the Character-length is more than 4, then strip any excess leaving only 4 characters
// Filename of the Active Document
var imgName= AD.name;
imgName = imgName.substr(0, imgName.length -4);
var myKeyString = imgName.substring(4,myFileEnd);
// Get name of Folder Path
var docFolder = AD.fullName.parent;
var folderPath = docFolder.fsName;
// Flatten layers all the time
AD.flatten();
// Saves the Active Document  in the same folder with 4 characters from right
jpgFile = new File( folderPath + "/" + myKeyString + ".jpg");
jpgSaveOptions = new JPEGSaveOptions();
jpgSaveOptions.embedColorProfile = true
jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
jpgSaveOptions.matte = MatteType.NONE;
jpgSaveOptions.quality = 12;
// Saves the file according the filename specifications above
AD.saveAs(jpgFile, jpgSaveOptions, true, Extension.LOWERCASE);
AD.close(SaveOptions.DONOTSAVECHANGES);
Message was edited by: apmaui808

Answer 1

I like the idea of adding a suffix but most of the time, we add the filename to proofs and we like the idea that the filename is shorter. Thanks for the suggestion. I tried doing changes in script and I found this revised version to satisfy what I needed to do. I am not a programmer so you can see some redundancy in the program. If there is a way to simplify it, I would go for that. Here is the revised code:
// Defines the Active Document
var AD = app.activeDocument;
// Determine end of file name without type suffix
    var myFileEnd = AD.name.lastIndexOf(".");
    var myFile = AD.name.substring(0,myFileEnd);
// Filename of the Active Document
var imgName= AD.name;
imgName = imgName.substr(0, imgName.length -4);
if (imgName.length == 8) {
    var myKeyString = imgName.substring(4, myFileEnd);
// Get name of Folder Path
    var docFolder = AD.fullName.parent;
    var folderPath = docFolder.fsName;
AD.flatten();
jpgFile = new File( folderPath + "/" + myKeyString + ".jpg");
jpgSaveOptions = new JPEGSaveOptions();
jpgSaveOptions.embedColorProfile = true
jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
jpgSaveOptions.matte = MatteType.NONE;
jpgSaveOptions.quality = 12;
AD.saveAs(jpgFile, jpgSaveOptions, true, Extension.LOWERCASE);
AD.close(SaveOptions.DONOTSAVECHANGES);
else
if (imgName.length == 7) {
    var myKeyString = imgName.substring(3, myFileEnd); // drops off 3 characters from left
    var docFolder = AD.fullName.parent;
    var folderPath = docFolder.fsName;
AD.flatten();
jpgFile = new File( folderPath + "/" + myKeyString + ".jpg");
jpgSaveOptions = new JPEGSaveOptions();
jpgSaveOptions.embedColorProfile = true
jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
jpgSaveOptions.matte = MatteType.NONE;
jpgSaveOptions.quality = 12;
AD.saveAs(jpgFile, jpgSaveOptions, true, Extension.LOWERCASE);
AD.close(SaveOptions.DONOTSAVECHANGES);
else
if (imgName.length == 6) {
    var myKeyString = imgName.substring(2, myFileEnd); // drops off 2 characters from left
    var docFolder = AD.fullName.parent;
    var folderPath = docFolder.fsName;
AD.flatten();
jpgFile = new File( folderPath + "/" + myKeyString + ".jpg");
jpgSaveOptions = new JPEGSaveOptions();
jpgSaveOptions.embedColorProfile = true
jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
jpgSaveOptions.matte = MatteType.NONE;
jpgSaveOptions.quality = 12;
AD.saveAs(jpgFile, jpgSaveOptions, true, Extension.LOWERCASE);
AD.close(SaveOptions.DONOTSAVECHANGES);
else
if (imgName.length == 5) {
    var myKeyString = imgName.substring(1, myFileEnd); // drops off 1 character from left
    var docFolder = AD.fullName.parent;
    var folderPath = docFolder.fsName;
AD.flatten();
jpgFile = new File( folderPath + "/" + myKeyString + ".jpg");
jpgSaveOptions = new JPEGSaveOptions();
jpgSaveOptions.embedColorProfile = true
jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
jpgSaveOptions.matte = MatteType.NONE;
jpgSaveOptions.quality = 12;
AD.saveAs(jpgFile, jpgSaveOptions, true, Extension.LOWERCASE);
AD.close(SaveOptions.DONOTSAVECHANGES);
else
if (imgName.length == 4) {
    var myKeyString = imgName.substring(0, myFileEnd); // leave filename as is
    var docFolder = AD.fullName.parent;
    var folderPath = docFolder.fsName;
AD.flatten();
jpgFile = new File( folderPath + "/" + myKeyString + "_" + ".jpg"); // adds a suffix "_" to avoid overwriting the main file
jpgSaveOptions = new JPEGSaveOptions();
jpgSaveOptions.embedColorProfile = true
jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
jpgSaveOptions.matte = MatteType.NONE;
jpgSaveOptions.quality = 12;
AD.saveAs(jpgFile, jpgSaveOptions, true, Extension.LOWERCASE);
AD.close(SaveOptions.DONOTSAVECHANGES);
else
if (imgName.length == 3) {
    var myKeyString = imgName.substring(0, myFileEnd);
    var docFolder = AD.fullName.parent;
    var folderPath = docFolder.fsName;
AD.flatten();
jpgFile = new File( folderPath + "/" + "0" + myKeyString + ".jpg"); //adds a prefix "0" to pad the 3-character filename
jpgSaveOptions = new JPEGSaveOptions();
jpgSaveOptions.embedColorProfile = true
jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
jpgSaveOptions.matte = MatteType.NONE;
jpgSaveOptions.quality = 12;
AD.saveAs(jpgFile, jpgSaveOptions, true, Extension.LOWERCASE);
AD.close(SaveOptions.DONOTSAVECHANGES);
else
if (imgName.length == 2) {
    var myKeyString = imgName.substring(0, myFileEnd);
// Get name of Folder Path
    var docFolder = AD.fullName.parent;
    var folderPath = docFolder.fsName;
AD.flatten();
jpgFile = new File( folderPath + "/" + "00" + myKeyString + ".jpg"); //adds two zeroes "00" to complete 4-character filename
jpgSaveOptions = new JPEGSaveOptions();
jpgSaveOptions.embedColorProfile = true
jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
jpgSaveOptions.matte = MatteType.NONE;
jpgSaveOptions.quality = 12;
// Saves the file according the filename specifications above
AD.saveAs(jpgFile, jpgSaveOptions, true, Extension.LOWERCASE);
AD.close(SaveOptions.DONOTSAVECHANGES);