French because some French locales have the usage that the accent be
removed from the letter on toupper (e.g.LATIN SMALL LETTER A WITH GRAVE
becomes LATIN CAPITAL LETTER A).
----------------------------------------------
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Director, Technology
SimulTrans, LLC
+1 (650) 526-4652 (telephone)
+1 (650) 969-9959 (telefax)
AddisonP@simultrans.com <mailto:AddisonP@simultrans.com>
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----------------------------------------------
-----Original Message-----
From: Michael Everson [mailto:everson@indigo.ie]
Sent: Thursday, July 16, 1998 11:38 AM
To: Unicode List
Subject: Re: LC_CTYPE locale category and
character sets.
Ar 09:13 -0700 1998-07-16, scríobh Kenneth Whistler:
>Case-mappings between characters have a few well-known,
culturally-specific
>preferences that must be accounted for. But
case-mappings are *relations*
>between pairs (or triplets) of characters, and not
character properties
>per se.
>> Does anyone has a good example of how to handle
correctly the german
>> LATIN SMALL LETTER SHARP S (00DF)
>> 'to uppercase' conversion , which sould give two
letters : "SS" ?
>
>Mark Davis pointed at the Unicode Standard for the full
answer.
>
>The short answer is that the Unicode Character Database
(and you
>should be using Version 2.1.2 now) gives all the
default one-to-one
>case mappings. Some case mappings (e.g., for French and
for Turkish)
>differ from the defaults.
French?
>And U+00DF for German has the uppercase "SS",
>but "SS" does not generally lowercase to U+00DF (unless
you do
>context analysis on the data).
Which is especially unreliable now that the German High
Court has approved
the spelling reform.
How do you do reversible conversions from lowercase to
uppercase and back,
though? Or is that "outside the scope" of coding in your
view?
--
Michael Everson, Everson Gunn Teoranta **
http://www.indigo.ie/egt
15 Port Chaeimhghein Íochtarach; Baile Átha Cliath 2;
Éire/Ireland
Guthán: +353 1 478-2597 ** Facsa: +353 1 478-2597 (by
arrangement)
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