From: John H. Jenkins (email@example.com)
Date: Tue Jun 13 2006 - 11:47:17 CDT
On Jun 13, 2006, at 8:21 AM, Werner LEMBERG wrote:
>> CNS11643 defined 16 plane space in 1986 but only define the first
>> two planes. Plane 14-16 was uesd during late 80 and earily 90 in
>> the EUC-TW system as experiemental or "private usage" in some
>> goverment system. The 1992 version define 7 planes.
> Until now everybody has said that CNS 11643 from 1992 has only seven
> planes. So the question is still unanswered what plane 15 in
> Unihan.txt actually refers to.
Note that plane 15 occurs in the kIRG_TSource. The official IRG
sources on occasion differ from their printed counterparts, typically
to allow inclusion in Unicode of characters which have not yet been
officially standardized in their home country.
What "plane 15" means in this case is that the Taipei Computer
Association, which owns CNS 11643, handed the IRG a set of mappings
which contained this mysterious plane. That's as much an answer as
you can get from the Unicode end of things. For more information,
you'll have to contact TCA.
Note that the kCNS1992 field does *not* contain plane 15 mappings.
John H. Jenkins
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