> Knowledge of DUCET is limited to a collation generator.

What do you mean by "collation generator"?

> The other is to reduce the size of
> generated keys when the range of code points is known. 8859-1, for
> example, can't be represented in single byte utf8, but base characters
> can be represented in a single byte.

Sounds like "bit bumming" to me. Why is this optimisation relevant in
today's world?

> Isn't it funny how something as intrinsically dull as collations can
> appear interesting?

When I started out in business I had a boss who said that there was no
such thing as a dull business segment; the dull appearance was because one
didn't know enough about it. I thought it was BS at the time, but 25 years
later I tend to agree with him.

Paul