Find Line Number in Text Member

Question

I would like to drop in a line of text after a specific phrase in a text member. To find the right place to drop the text, I must first determine the line number the specific phrase text is located. Now, I can use a REPEAT to walk through each line until it is found, but there must be a more elegant way. The code "Offset" is great for finding the first character number of the specific phrase, but I don't know how to glean the line number from that.
Currently this is how I do it...
repeat with xLineCount = 1 to 100
    if textDoc.line[xLineCount] contains "<specific text phrase>" then
      put RETURN & RETURN & "<new text pasted>" after textDoc.line[xLineCount]
      exit repeat
    end if
  end repeat
Can anyone give me a more elegant approach this?

Answer 1

A more elegant approach might be to use a regular expression, but I'm not sure I understand your requirements well enough to make a sensible recommendation.
You could try the following JavaScript handler and invoke it like:
tMember.text = jsReplace(tMember.text, "<specific text phrase>", "<specific text phrase>" & RETURN & RETURN & "<new text pasted>")
function jsReplace(inStr, strFind, strReplace){
  // error check input
  if(typeof(inStr)      != "string") { return inStr; }
  if(typeof(strFind)    != "string") { return inStr; }
  if(typeof(strReplace) != "string") { return inStr; }
  // search-and-replace
  re = new RegExp(strFind, "g");
  return inStr.replace(re, strReplace);
However, this will place the pasted text immediately after the search phrase and not at the end of the line. It is possible to do this with a regular expression, but I'd have to dust off my copy of Friedl's "Mastering Regular Expressions" to craft it for you and I don't have either the time or inclination at present.