From: Erik van der Poel (email@example.com)
Date: Wed Jun 01 2005 - 13:56:39 CDT
Theo Veenker wrote:
> In Unihan.txt I see only the 1990 mappings for JIS X 0208.
> But ISO-2022-JP- also use JIS X 0208-1978 and JIS X 0208-1983.
> Are the later dated versions of this character set supersets
> of the earlier versions? Does anyone know where to find the 1978
> and 1983 mapping tables?
I believe the official source of info for JIS X 0208 is the Japanese
Standards Association (JSA):
Ken Lunde explains many (all?) of the differences between the 78, 83 and
90 versions in his book CJKV Information Processing. Some of this info
is also available online:
Unihan.txt contains normative mappings for JIS X 0208-1990 under the
kIRG_JSource tag. I do not know of any mapping tables for the 78 and 83
versions. Some (most?) implementations simply make them equivalent to
the 90 version. See the Background Information section of the RFC 1468:
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