🚀 go-pugleaf

Stephen Baynes wrote:
> 
> Paul Gorodyansky wrote:
> >
> > Paul Gorodyansky wrote:
> > >...
> > > on a Web page (cannot find URL now) of Sun documentation where they said
> > > that their C run-time library's
> > >   wchar
> > > is NOT Unicode, it's Sun's proprietary implementation.
> >
> > By the way, can anybody answer how people write Unicode-enabled
> > programs in C/C++ under Solaris if wchar there is not Unicode?
> >
> > Solaris 8 claims to fully support Unicode, I can even choose UTF-8
> > as a locale but what does it really means if C/C++ do NOT support
> > Unicode there???
> 
> I don't know - but I guess that if you set UTF-8 as your locales
> character set - then it will correctly convert to / from UTF-8 as
> a multi byte character set to Sun's (not unicode) wchar encoding.

Thanks! It makes sense. That is, it means that now we have UTF-8
_code page_. It's like MultiByteToWideChar() under Windows that 
converts non-Unicode to wchar_t - the code page must exist on the
computer for this function to work. For example, U.S. NT 4.0 that
does not have Japanese code page - that function can not be used
there to convert Japanese text to wchar.


> 
> Note also that the C standard allows the encoding of wide characters
> to be locale specific. So in a UTF-8 locale it could be UNICODE and
> in a Japanise locale it could be something completely different.

No, here I can not agree. wchar can NOT be locale-specific, otherwise
none of our programs would work :)

C standard may allow wchar to be _platform_ specific (i.e. Windows
has it as UCS-2 while Sun - as their own implementation), but
not Locale-specific, wchar has nothing to do with Locales:

for example, we have I18n-enabled C/C++ code - as it should be -
single executable for all languages, wchar is always
"_platform-specific_ wchar" despite the locale being it UTF-8 or French
or Japanese - locale serves absolutely different purpose -
decimal separators, sorting, etc. - it has nothing to do
with character representation.

So, in our current code - despite the locale - wchar under Sun is always
the same Sun's own form and under Windows it's UCS-2 - it does not matter
where our Sun or Windows NT computer is a Japanese or a French one.


-- 
Regards,
Paul Gorodyansky
"Cyrillic (Russian): instructions for Windows and Internet": 
http://ourworld.compuserve.com/homepages/PaulGor/