IDC's versus Egyptian format controls

[James Kass via Unicode]

Richard Wordingham wrote:

> One can argue that once the compound ideograph have been encoded, the
> IDS should no longer be interpreted.

Wouldn't that break existing data?  If this sort of thing were done at
OS or app level, it might be possible to replace the IDS string with
the appropriate character upon file save in some kind of automatic
fashion.  But I'd sure hate for that to happen to any of my text files
without warning.