Re: Query on UTF-32 encodings for letters

[Robert Dewar <dewar at adacore dot com>]

Tom Tromey wrote:
> > > > > > "Robert" == Robert Dewar <dewar@adacore.com> writes:
>
>
> Robert> though the case conversion one is pretty huge -- that's
> Robert> not one that C and Java have to worry about
>
> FWIW, libgcj does need this, since String and Character both have case
> conversion methods.  This is mostly table-driven, using tables derived
> from the Unicode tables via a converter program, but there are some
> special cases in String for weird things like esset and dotless "i" in
> the Turkish locale.  See libjava/scripts and
> libjava/java/lang/{*String*,*Character*}.
>
> Tom

Well it is possible that libgcj does exactly the right thing for
Ada over all planes, but on the other hand, it is not that difficult
to do exactly what is required for Ada, and we definitely do not need
the fold to lower case (which is where problems occur), and Ada does
NOT allow special casing of esset.