Thanks for the reminder. I looked at this a couple of weeks ago when you ping me off-list, but I see we're still waiting for a rebase. Hugh, can you please post a new patch? The approach looks right to me (simply replace the composing diacritics with nothing), so if you post a new version I'll double check with that test case I came up with earlier, and then I'll be happy to commit it.
Hi Thomas,
My apologies; I hadn't realised I was supposed to do this. A rebased version of patch 03 is attached. Let me know if you have any questions or need any changes.