CNS (Traditional Chinese)
The Taiwan standard CNS 11643-1986 is a pair of 94x94 planes
(or levels) derived from Big-5
and another 94x94 plane of user characters (rows 1-71), called plane 14.
It may also be treated as a 3-byte 94-character code.
Plane 1 comprises
- punctuation and other symbols
(Big-5 characters A140-A2AE one minor change)
- various numerals and assorted alphabets
(Big-5 characters A2AF-A3BF)
- enclosed numerals (Big-5 characters C7E9-C7FC)
plus small Roman numerals
- Kangxi radicals
- symbols for control characters
- frequently used hanzi (Big-5 characters A440-C67E)
Plane 2 is
- less frequently used hanzi
(BIG-5 characters C940-F9D5 except C94A and DDFC,
eliminated as duplicates of A461 and DCD1 respectively)
The hanzi planes are ordered by stroke count and then Kangxi radical
as in Big-5,
but a few of the counts or radicals have been corrected
(and the characters relocated)
so the mapping is not continuous.
The revised code CNS 11643-1992 carries over planes 1 and 2 unchanged.
Other planes are:
- 6148 hanzi from plane 14 of CNS 11643-1986 (rows 1-66)
- 7298 rarely used hanzi, including some used in names,
171 more hanzi from plane 14 of CNS 11643-1986 and
hanzi in ISO/IEC 10646-1:1993
not in previous planes (rows 1-78)
- 8603 even rarer hanzi (rows 1-92)
- 6388 variant forms (yi4ti3zi4) with up to 14 strokes (rows 1-68)
- 6539 variant forms (yi4ti3zi4) with 15 or more strokes (rows 1-70)
Hanzi in the last 3 planes were supplied by the Ministry of Education.
An eighth plane of about 7000 characters is in preparation.
Part of Notes on CJK Character Codes and Encodings.