RE: ICU 1.8 and Unicode 2.1

[George R. <gr...@us...>]

I know it wasn't what you meant, but it was an alternate suggestion.  It 
may not be a good one, but it was a suggestion.  The version number that I 
was refering to was the ICU version number, not the Unicode version 
number.

George Rhoten
IBM Globalization Center of Competency/ICU  Cupertino, CA, USA

Sent by:        icu...@dw...
To:     "'ic...@os...'" <ic...@dw...>
cc: 
Subject:        RE: ICU 1.8 and Unicode 2.1



> Well you could have two data sets at once.  It would just require two
> versions of ICU running at once.  It's kind of relateded to
> the library
> versioning discussion that we have been having lately.  You
> could try to
> make the normal ICU 1.8.1 and make your custom ICU version.
> The one that
> needs a restriction to a certain version of Unicode has the
> nonstandard
> version.

That's not what I mean by "two data sets at once". That's what I mean by
"building 1.8 with Unicode 2.1 data".

> It would just be one of those annoying hacks that few people
> would want to
> try such a thing.  After all, the main ICU source code may
> eventually use
> the exact same version number as your custom ICU does.  It
> may be worth
> looking into.

I am not sure I understand what you mean by "After all, the main ICU 
source
code may eventually use the exact same version number as your custom ICU
does" but I am pretty sure that as long as Microsoft Windows is stuck on
Unicode 2.1 there will be  a need to build ICU with "older" data.

On Unix, I'd go with a new Autoconf option --with-unidata-dir=some-place 
and
then I could have a data/unidata-2.1 along data/unidata. That would 
address
building ICU with either version of UnicodeData.txt by making it pretty
simple (providing the build finds the data it needs there). If I do that,
what would be a good way to mirror this on Windows?

If you think nobody else will want to have ICU manipulate the same set of
Unicode characters as Windows, then I can just dump one UnicodeData.txt on
top of another and hopw for the best (what will happen with collation for
example?).

YA
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