[AS-CS3] How to create subtopics in an index?

Question

I wrote a script whose make an index from character styles.
I guy ask to me:
"We've just had a print customer ask us for help w/ their index --- I've got it worked out except for adding sub-topics, sub-sub-topics and (of course) sub-sub-sub-topics."
I don't write scripts for a long time (due to my work).
Is it possible to make that???
I thing the short answer is "no", but...
Thanks.
Oli.

Answer 1

Here's a message I'm about to post to the applescript-list (my apologies for those who're seeing it twice):
I'm trying to up-date Olivier Berquin's script (located somewhere near here):
http://olivier.berquin.free.fr/indesign/indesign_cs1.html
so that it will make multi-level indexes.
I'm currently working in CS2 (but I don't think the indexing code has changed much since then), and have managed to get to the point where I have:
FoundObjects -- a list of all the things which need to be indexed
myFoundItem --- the thing which I want to index
howMany --- the number of index levels (1, 2, 3, or 4)
indexone --- the main topic
indextwo --- the sub-topic (if any)
indexthree --- the sub-sub-topic (if any)
indexfour --- the sub-sub-sub-topic (if any)
Olivier's script has:
tell myIndex
-- Add the topic to the index if it does not already exist.
try
set myTopic to topic indexone of myIndex
on error
set myTopic to make topic with data {name:indexone}
end try
end tell
tell myTopic
make page reference with properties {parent story:myStory, source text:myFoundItem}
end tell
(which I have wrapped up in an if howMany is 1 then .... endif block)
to check and see if an index entry exists and make it if it doesn't, but I'm simply not understanding how one would code adding a sub-topic, sub-sub-topic or sub-sub-sub-topic and the page reference to the last topic --- I just need to fill in the last three code blocks (if howMany is 2, 3 or 4 then ... endif) --- how do I do that?
William