Re: Mule internal code ?
От | Tatsuo Ishii |
---|---|
Тема | Re: Mule internal code ? |
Дата | |
Msg-id | 20011011100343I.t-ishii@sra.co.jp обсуждение исходный текст |
Ответ на | Re: Mule internal code ? (Patrice Hédé <phede-ml@islande.org>) |
Список | pgsql-hackers |
> > ISO-8859-15 and 16! I don't know anything beyond ISO-8859-10. Can you > > give me any pointer (URL) explaining what they are? > > http://www.evertype.com/sc2wg3.html > > It links to files describing iso-8859-14 to 16. [snip] Thanks for the info. > Well, for the history iso-10646 was 32 bits from the beginning, and > Unicode didn't say that it was only 16 bits, though, to be fair, the > Unicode consortium said it didn't believe it would need more than 16 > bits. > > BTW, now, there is a statement that they wouldn't go above 0x10ffff, > which gives a bit more than 1 million characters... I think it should > be enough this time (but who knows !?). > > Regarding the *main* issue with Unicode, which is support of japanese > kanji vs chinese (in the CJK unification), I must admit I don't know > the details, but arguments of both sides seem to be valid. I must > admit I would say "add the japanese version of the characters", since > it's not lack of space which is the problem now. But things like this > will get solved with time, and it really seems like Unicode will > achieve the so much needed charset unity it's been made for :) IMHO we should not rely on particular encodings/charsets, including Unicode (or ISO 10646), MULE internal code or whatever. My plan for supporting CREATE CHARCTER SET etc. stuffs would be truly *neutral* to any encodings/charsets. > > > Can someone point me to where I should look for that ? is it as > > > easy as iso-8859-2/3/4 support, or do I need to do something as > > > iso-8859-5 ? > > > > Docs for MULE internal code come with XEmacs. For example, see: > > > > ftp://ftp.xemacs.org/pub/xemacs/docs/letter/internals-letter.pdf.gz > > > > http://www.lns.cornell.edu/public/COMP/info/xemacs/internals/internals_15.html#SEC83 > > Unfortunately, these explain the principles behind mule, not the way > to encode them from/to another character set :/ Please take look at "15.3.1 Internal String Encoding." -- Tatsuo Ishii
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