From: Rick McGowan (rick@unicode.org)
Date: Thu Apr 01 2004 - 18:01:03 EST
Rick Cameron asked...
> It appears that Unihan.txt does not include mappings to Shift-JIS,
Right. It includes JIS mappings (for the Han portions of JIS).
> and that the only file on unicode.org that contains mappings between
> Shift-JIS and Unicode is in the 'obsolete' section.
Please read the caveats there before using those. The obsolete mappings
are totally unsupported. Use at your own risk.
> Did UTC decide it no longer wanted to provide an official mapping table?
> If so, why?
A long long time ago we decided to drop support for most mappings. There
are many reasons, not least of which is that some of them are moving
targets, and we don't have resources to support them. For "Shift JIS" there
are many problems because there isn't just one "Shift JIS"; each vendor
has their own flavor. The vendors should track their own mappings to
Unicode, where they differ from JIS.
The *VENDOR* mappings on the Unicode site are supplied by various vendors,
and one of the MS mappings will get you the MS variety of Shift-JIS. Note
that these are not supplied by Unicode, Inc, but by the vendors to us, so
it may take a while to get an answer, but... If you have problems with one
of these vendor mappings on the Unicode site, you can discuss it here, or
fill out our error Reporting Form.
For Shift-JIS in particular, please do read the caveats and look through
the archives of this list. There are several known mapping anomalies.
Rick
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