Query on UTF-32 encodings for letters

[Florian Weimer]

* Robert Dewar:

> Paul Koning wrote:
>
>> Then take i, which upcases to I with dot.  Turkish has i with and
>> without dot, and the dot is preserved when you change case (in either
>> direction).
>
> Yes, and that's fine, both lower case i with dot and lower case i
> without dot fold upper case to capital I (without dot), and so all three
> are equivalent in identifiers.

No, this is not the way Turkish case conversion works.  Turkish has a
rule LATIN SMALL LETTER I -> LATIN CAPITAL LETTER I WITH DOT ABOVE
(U+0130).