CJK Compatibility Ideographs

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CJK Compatibility Ideographs
RangeU+F900..U+FAFF
(512 code points)
PlaneBMP
ScriptsHan
Assigned472 code points
Unused40 reserved code points
Source standardsKS X 1001:1998
Big5
IBM 32
KS X 1001:2004
JIS X 0213
ARIB STD-B24
KPS 10721-2000
Unicode version history
1.0.1302 (+302)
3.2361 (+59)
4.1467 (+106)
5.2470 (+3)
6.1472 (+2)
Note: [1][2]

CJK Compatibility Ideographs is a Unicode block created to contain Han characters that were encoded in multiple locations in other established character encodings, in addition to their CJK Unified Ideographs assignments, in order to retain round-trip compatibility between Unicode and those encodings. Such encodings include the South Korean KS X 1001:1998 (U+F900–U+FA0B, 268 characters), Taiwanese Big5 (U+FA0C–U+FA0D, 2 characters), Japanese IBM 32 (CP932 variant; U+FA0E–U+FA2D, 32 characters), South Korean KS X 1001:2004 (U+FA2E–U+FA2F, 2 character), Japanese JIS X 0213 (U+FA30–U+FA6A, 59 characters), Japanese ARIB STD-B24 (U+FA6B–U+FA6D, 3 characters) and the North Korean KPS 10721-2000 (U+FA70–U+FAD9, 106 characters) source standards.

In ensuing versions of the standard, more characters have been added to the block. These even include a few regular ideographs (with the Unified_Ideograph property) that do not have duplicates (U+FA0E–U+FA0F, U+FA11, U+FA13–U+FA14, U+FA1F, U+FA21, U+FA23–U+FA24 and U+FA27–U+FA29).[3]

The block has dozens of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD).[4][5] These sequences specify the desired glyph variant for a given Unicode character.

Block[edit]

CJK Compatibility Ideographs[1][2]
Official Unicode Consortium code chart (PDF)
  0 1 2 3 4 5 6 7 8 9 A B C D E F
U+F90x
U+F91x
U+F92x
U+F93x 錄
U+F94x
U+F95x
U+F96x
U+F97x 勵
U+F98x
U+F99x
U+F9Ax
U+F9Bx 樂
U+F9Cx
U+F9Dx
U+F9Ex
U+F9Fx 刺
U+FA0x
U+FA1x
U+FA2x
U+FA3x 憎
U+FA4x
U+FA5x
U+FA6x
U+FA7x 奔
U+FA8x
U+FA9x
U+FAAx
U+FABx 謹
U+FACx
U+FADx
U+FAEx
U+FAFx
Notes
1.^ As of Unicode version 11.0
2.^ Grey areas indicate non-assigned code points

History[edit]

The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Compatibility Ideographs block:

Version Final code points[a] Count L2 ID WG2 ID IRG ID Document
1.0.1 U+F900..FA2D 302 (to be determined)
L2/03-399 Fok, Anthony (2003-10-13), Unihan reported errors / changes re kHKSCS entries
L2/03-367 N2667 Suignard, Michel; Muller, Eric; Jenkins, John (2003-10-22), CJK Ideograph source references corrections
L2/03-398 Nguyen, D. (2003-10-29), Unihan reported errors / changes re kCowles
L2/03-417 Muller, Eric (2003-10-31), Variation sequences for CJK Compatibility characters
L2/08-238 Cook, Richard; Lunde, Ken (2008-06-09), Recommendation For IRG To Use IVD Collections
L2/08-373 N3525 Lunde, Ken; Muller, Eric (2008-10-06), Handling CJK compatibility characters with variation sequences
L2/08-425 Cook, Richard; Lunde, Ken (2008-11-18), IRG Use of IVD Collections
L2/09-003R Moore, Lisa (2009-02-12), "WG2 — Compatibility Ideographs", UTC #118 / L2 #215 Minutes
L2/09-080 N3590 Muller, Eric (2009-03-11), Difficulties with compatibility ideographs
L2/09-290 Muller, Eric (2009-08-07), Draft IVD registration for Compatibility Characters
L2/11-243 N4111 Sources for Orphaned CJK Ideographs, 2011-06-14
3.2 U+FA30..FA6A 59 L2/99-016 N1935 Paterson, Bruce (1998-11-30), Editorial corrigenda on CJK compatibility ideographs, and other items
L2/99-240 Addition of fifty six KANJIs for compatibility, 1999-07-15
L2/99-311 Addition of fifty six KANJIs for compatibility, 1999-08-23
L2/99-313 N2095 Sato, T. K. (1999-09-08), Addition of CJK ideographs which are already "unified"
L2/99-316 Whistler, Ken (1999-09-13), Comments on JCS proposal
L2/99-322 Collins, Lee (1999-10-11), Comments on JCS compatibility characters in L2/99-310 through L2/99-313
L2/99-365 Moore, Lisa (1999-11-23), Comments on JCS Proposals
L2/99-383 N2142 N710 The response to WG2 resolution M37.16: CJK compatibility ideographs from JIS (WG2 N2104), 1999-12-09
L2/99-260R Moore, Lisa (2000-02-07), "JCS Proposals", Minutes of the UTC/L2 meeting in Mission Viejo, October 26-28, 1999
L2/00-101 N2197 Sato, T. K. (2000-03-15), Update: CJK COMPATIBILITY IDEOGRAPH request
L2/00-172 N2221R Sato, T. K. (2000-04-20), JIS COMPATIBILITY IDEOGRAPHS (draft for ammendment-1) [sic]
L2/00-190 Moore, Lisa (2000-06-22), UTC Rescinds Acceptance of Four Duplicate Radicals from JIS X 213
L2/00-337 N2273 JIS compatibility ideographs, 2000-09-19
L2/00-378 N2295 Sato, T. K. (2000-10-26), Feedback from Japan on N2281 -- working draft on pDAM 1 -- CJK Compatibility
4.1 U+FA70..FAD9 106 L2/00-317 N2254R "RESOLUTION M39.26", Resolutions of WG2 Meeting 39 (Athens), 2000-10-11
L2/01-350 N2375 Proposal to add 160 Compatibility Hanja code table of D P R of Korea into CJK Compatibility Ideographs, 2001-09-03
N2375 Proposal to add the 160 Compatibility Hanja code table of D P R of Korea into CJK Compatibility Ideographs, 2001-09-03
N2478 Proposed Disposition of comments on SC2 N 3584 (PDAM text for Amendment 2 to ISO/IEC 10646-1:2000), 2002-05-08
L2/02-232 N2493 Sato, T. K.; Kobayashi, Tatsuo; Gi, Pak Tong (2002-05-22), Proposal to add 122 compatibility Hanja code table of the D P R of Korea into the CJK Compatibility Ideographs of ISO/IEC 10646-1:2000
N2541 "USA T.8", Proposed disposition of comments on SC2 N 3624 (FPDAM text for Amendment 2 to ISO/IEC 10646-1:2000), 2002-12-02
N2540 Freytag, Asmus (2002-12-05), Corrections to CJK Compatibility Ideographs Table in FPDAM
L2/02-465 N2566 Collins, Lee; Freytag, Asmus (2002-12-09), Review of DPRK Compatibility Ideographs
L2/02-471 N2572 CJK Compatibility Ideographs (Unicode 3.2, page 399), 2002-12-18
L2/02-472 N2573 Report of DPRK compatibility characters ad hoc meeting, 2002-12-11
L2/02-468 N2569 Suignard, Michel (2002-12-12), "USA T.5 e, USA T.8", Proposed disposition of comments on SC2 N 3624 (FPDAM text for Amendment 2 to ISO/IEC 10646-1:2000)
L2/03-023 N2569R Suignard, Michel (2003-01-27), "USA T.5 e, USA T.8", Disposition of Comments Report on 10646-1/FPDAM 2
L2/03-346 Chang, Cora (2003-10-20), Analysis of characters in WG2 documents N2572, N2573
L2/03-346.1 Chang, Cora (2003-10-20), Analysis of characters in WG2 documents N2572, N2573 [spreadsheet without glyphs]
L2/04-207 N2776 N1062 Proposal to add 106 Compatibility Hanjas of D P R of Korea to CJK Compatibility Ideographs, 2004-05-25
L2/04-330 Whistler, Ken (2004-08-03), "E", WG2 Consent Docket
L2/04-316 Moore, Lisa (2004-08-19), "100-C12", UTC #100 Minutes
L2/05-050 N2924R Freytag, Asmus (2005-01-28), Charts - Amendments 1 and 2 to ISO/IEC 10646:2003
L2/10-367 N3899 KP1-0000, 2010-09-30
L2/11-243 N4111 Sources for Orphaned CJK Ideographs, 2011-06-14
L2/11-254 Constable, Peter (2011-06-20), "Update to UTR #45 U-Source Ideographs requested", UTC Liaison Report from WG2
5.2 U+FA6B..FA6D 3 L2/07-387 Proposal to encode six CJK Ideographs in UCS, 2007-10-17
L2/08-184 N3318R Revised proposal to encode six CJK Ideographs in UCS, 2008-03-25
6.1 U+FA2E..FA2F 2 L2/10-087 N3747 A solution proposed by R.O.Korea for incorrectly mapped compatibility chars, 2010-03-19
  1. ^ Proposed code points and characters names may differ from final code points and names

See also[edit]

References[edit]

  1. ^ "Unicode character database". The Unicode Standard. Retrieved 2016-07-09.
  2. ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2016-07-09.
  3. ^ "PropList.txt". Unicode Consortium.
  4. ^ "Ideographic Variation Database". Unicode Consortium.
  5. ^ "UTS #37, Unicode Ideographic Variation Database". Unicode Consortium.