Query on UTF-32 encodings for letters

[Robert Dewar]

Georg Bauhaus wrote:
> Robert Dewar wrote:
> 
>> There is no upper case I with dot, so I have no idea what you mean by
>> saying the dot is preserved. The three characters in question are:
> 
> 
> Unless I'm missing something,
> 0130; F; 0069 0307; # LATIN CAPITAL LETTER I WITH DOT ABOVE

Yes, you are right, interesting, I missed this. Well the Ada
decision is to fold the dotless I to a capital I without dot.
So that's what we will do! I hope Turkish programmers using
Ada will not get completely confused :-)

It's a very deliberate decision too, since it is inconsistent
with the surrounding characters:

>     (16#119#, 16#119#, -1), -- LATIN SMALL LETTER E WITH OGONEK .. LATIN SMALL LETTER E WITH OGONEK
>     (16#11B#, 16#11B#, -1), -- LATIN SMALL LETTER E WITH CARON .. LATIN SMALL LETTER E WITH CARON
>     (16#11D#, 16#11D#, -1), -- LATIN SMALL LETTER G WITH CIRCUMFLEX .. LATIN SMALL LETTER G WITH CIRCUMFLEX
>     (16#11F#, 16#11F#, -1), -- LATIN SMALL LETTER G WITH BREVE .. LATIN SMALL LETTER G WITH BREVE
>     (16#121#, 16#121#, -1), -- LATIN SMALL LETTER G WITH DOT ABOVE .. LATIN SMALL LETTER G WITH DOT ABOVE
>     (16#123#, 16#123#, -1), -- LATIN SMALL LETTER G WITH CEDILLA .. LATIN SMALL LETTER G WITH CEDILLA
>     (16#125#, 16#125#, -1), -- LATIN SMALL LETTER H WITH CIRCUMFLEX .. LATIN SMALL LETTER H WITH CIRCUMFLEX
>     (16#127#, 16#127#, -1), -- LATIN SMALL LETTER H WITH STROKE .. LATIN SMALL LETTER H WITH STROKE
>     (16#129#, 16#129#, -1), -- LATIN SMALL LETTER I WITH TILDE .. LATIN SMALL LETTER I WITH TILDE
>     (16#12B#, 16#12B#, -1), -- LATIN SMALL LETTER I WITH MACRON .. LATIN SMALL LETTER I WITH MACRON
>     (16#12D#, 16#12D#, -1), -- LATIN SMALL LETTER I WITH BREVE .. LATIN SMALL LETTER I WITH BREVE
>     (16#12F#, 16#12F#, -1), -- LATIN SMALL LETTER I WITH OGONEK .. LATIN SMALL LETTER I WITH OGONEK
>     (16#131#, 16#131#, -232), -- LATIN SMALL LETTER DOTLESS I .. LATIN SMALL LETTER DOTLESS I
>     (16#133#, 16#133#, -1), -- LATIN SMALL LIGATURE IJ .. LATIN SMALL LIGATURE IJ
>     (16#135#, 16#135#, -1), -- LATIN SMALL LETTER J WITH CIRCUMFLEX .. LATIN SMALL LETTER J WITH CIRCUMFLEX
>     (16#137#, 16#137#, -1), -- LATIN SMALL LETTER K WITH CEDILLA .. LATIN SMALL LETTER K WITH CEDILLA
>     (16#13A#, 16#13A#, -1), -- LATIN SMALL LETTER L WITH ACUTE .. LATIN SMALL LETTER L WITH ACUTE
>     (16#13C#, 16#13C#, -1), -- LATIN SMALL LETTER L WITH CEDILLA .. LATIN SMALL LETTER L WITH CEDILLA
>     (16#13E#, 16#13E#, -1), -- LATIN SMALL LETTER L WITH CARON .. LATIN SMALL LETTER L WITH CARON
>     (16#140#, 16#140#, -1), -- LATIN SMALL LETTER L WITH MIDDLE DOT .. LATIN SMALL LETTER L WITH MIDDLE DOT
>     (16#142#, 16#142#, -1), -- LATIN SMALL LETTER L WITH STROKE .. LATIN SMALL LETTER L WITH STROKE

Bah! Makes me think even more that the whole business of extending case
insensitive letters to wide characters was a mistake. Oh well, I have got
it all implemented now :-)