GREP question: Changing all caps to proper name punctuation

Question

Hello,
I'm working on my subscription renewal letter.
In our mailing database, all names of people and business are in capitals. I need to change them to regular capitlization for the letter.
Example: "JOHN SMITH" should be "John Smith"
I know how to find the text, but I don't know exactly how to repace it. Help would be much appreciated.
Regards,
Eric

Answer 1

I found a script (coding below) by Dave Saunders: http://jsid.blogspot.com/2005/08/script-of-day-smart-title-case.html
I need it to be slightly modified so that instead of applying to the selected text, it finds (?<=Dear\s|Cher\s).+
//DESCRIPTION: Converts selected text to title case smartly
// Customize this script by either editing these arrays:
var ignoreWords = ["a","an","and","the","to","with","in","on",
"as","of","or","at","is","into","by","from","for"];
var intCaps = ["PineRidge","InDesign","NJ","UMC"];
// or by creating text files named ignoreWords.txt
// and intCaps.txt in the script's folder
ignoreWords = getIgnoreFile(ignoreWords);
intCaps = getIntCaps(intCaps);
try {
myText = app.selection[0].texts[0].contents;
} catch(e) {
exit();
theWords = myText.toLowerCase().split(" ");
//First word must have a cap, but might have an internal cap
myNewText = "";
for (var j = 0; theWords.length > j; j++) {
k = isIn(intCaps,theWords[j])
if (k > -1) {
  myNewText = myNewText + intCaps[k] + " ";
  continue;
} else {
  if ((isIn(ignoreWords,theWords[j]) > -1) && (j != 0)) {
   myNewText = myNewText + theWords[j] + " ";
  } else {
   myNewText = myNewText + InitCap(theWords[j]) + " ";
app.selection[0].texts[0].contents = myNewText.substring(0,myNewText.length - 1);
// +++++++ Functions Start Here +++++++++++++++++++++++
function getIgnoreFile(theWords) {
var myFile = File(File(getScriptPath()).parent.fsName + "/ignoreWords.txt");
if (!myFile.exists) { return theWords }
// File exists, so use it instead
myFile.open("r");
var importedWords = myFile.read();
myFile.close();
return importedWords.split("\n"); // Could filter these, but what's the point?
function getIntCaps(theWords) {
var myFile = File(File(getScriptPath()).parent.fsName + "/intCaps.txt");
if (!myFile.exists) { return theWords }
// File exists, so use it instead
myFile.open("r");
var importedWords = myFile.read();
myFile.close();
return importedWords.split("\n"); // Could filter these, but what's the point?
function getScriptPath() {
// This function returns the path to the active script, even when running ESTK
try {
  return app.activeScript;
} catch(e) {
  return e.fileName;
function isIn(aList,aWord) {
for (var i = 0; aList.length > i; i++) {
  if (aList[i].toLowerCase() == aWord) {
   return i;
return -1;
function InitCap(aWord) {
if (aWord.length == 1) {
  return (aWord.toUpperCase());
return (aWord.substr(0,1).toUpperCase() + aWord.substring(1,aWord.length))