Actually, this raises a question about the Microsoft Windows code pages. They
recently added the Euro to some of their code pages (CP 125x).
They registered Windows-1250 in May 1996. Did 1250 already contain the Euro at
that time?
ftp://ftp.isi.edu/in-notes/iana/assignments/character-set-info/windows-1250
Another example: ISO 2022 has rules for revisions. If you add characters to the
set, you need to insert another escape sequence to indicate the use of the new
set.
RFC 2278 says the following:
All registered charsets MUST be specified in a stable, openly
available specification. Registration of charsets whose
specifications aren't stable and openly available is forbidden.
(ftp://ftp.isi.edu/in-notes/rfc2278.txt)
But how much do people really care about this? Microsoft will probably just go
ahead and use the name "windows-1250" even if the Euro is present.
And receiving software will probably accept it.
"Be liberal in what you accept, and
conservative in what you send"
(ftp://ftp.isi.edu/in-notes/rfc1123.txt)
Erik
Alain LaBonté wrote:
> Those who are planning a software update ought to be informed immediately
> though without making any noise, to prepare themselves, as after July this
> will become urgent matter in Europe.
Forwarded message 1
Microsoft was the first to get back to me on my request for all
vendors to provide information on their changes and additions to
codepages over the past 2 or so years. I thought I should reward their
responsiveness by sharing the info. (With their permission.) To wit:
No other characters have been added to the Windows code pages other than
the Euro and in 1252, 2 Finnish characters.
The Euro (U+20A0) has been added to only the following ten Windows
codepages (They are all single-byte):
(Yes all at 0x80, except 1251 which is 0x88. It's not a typo.)
0x80 1250 Central Europe
0x88 1251 Cyrillic
0x80 1252 Western
0x80 1253 Greek
0x80 1254 Turkish
0x80 1255 Hebrew
0x80 1256 Arabic
0x80 1257 Baltic
0x80 1258 Vietnamese
0x80 874 Thai
0x8E, 0x8F are defined in Code Page 1252 for the Finnish z-haceks
U+017D, U+017E
Many thanks to Microsoft for helping us all keep up to date. Microsoft is
working on updating the mapping tables at the Unicode FTP site with this
information.
Tex
--
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Tex Texin Manager International Products
Progress Software Corp. Voice: +1-781-280-4271
14 Oak Park Fax: +1-781-280-4949
Bedford, MA 01730 USA texin@bedford.progress.com
http://www.progress.com http://apptivity.progress.com
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