| CJK Unified Ideographs Extension A | |
|---|---|
| Range | U+3400..U+4DBF (6,592 code points) |
| Plane | BMP |
| Scripts | Han |
| Assigned | 6,592 code points |
| Unused | 0 reserved code points |
| Unicode version history | |
| 3.0 (1999) | 6,582 (+6,582) |
| 13.0 (2020) | 6,592 (+10) |
| Unicode documentation | |
| Code chart ∣ Web page | |
| Note: [1][2] Range used for Hangul syllables prior to Unicode 2.0 (see Hangul (obsolete Unicode block)). | |
CJK Unified Ideographs Extension-A is a Unicode block containing rare Han ideographs submitted to the Ideographic Research Group between 1992 and 1998, plus ten ideographs added in Unicode 13.0 which had previously been mistakenly unified with others.[3]
The block has dozens of variation sequences defined for standardized variants.[4]
It also has thousands of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD).[5][6] These sequences specify the desired glyph variant for a given Unicode character.
Block
History
The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Unified Ideographs Extension A block:
| Version | Final code points[lower-alpha 1] | Count | L2 ID | WG2 ID | IRG ID | Document |
|---|---|---|---|---|---|---|
| 3.0 | U+3400..4DB5 | 6,582 | N1423 | N364 | Proposal Summary Form: CJK Unified Ideographs Extension A, 1996-08-01 | |
| N1424 | N382 | CJK Unified Ideograph Extension A Version 1.1, 1996-08-01 | ||||
| N1425 | N378 | Draft Text of General Description for Extension A, 1996-08-01 | ||||
| N1426 | N379 | Draft Text of CJK Annex for Extension A, 1996-08-01 | ||||
| N1455 | Lu, Chin (1996-08-06), More Evidence on CJK Extension A | |||||
| N1439 | Korea's comments on IRG Proposal, 1996-08-12 | |||||
| N1449 | Wang, Xiaoming (1996-08-12), The Great Chinese Word Dictionary with CJK Extensions | |||||
| N1453 | Ksar, Mike; Umamaheswaran, V. S. (1996-12-06), "9. IRG status and reports", WG 2 Minutes - Quebec Meeting 31 | |||||
| N1479 | Ksar, Mike (1997-01-10), Results of SC2 questionnaire on allocation of 6585 Han characters in BMP | |||||
| N1487 | IRG position concerning Japanese comments on extension A, 1997-01-15 | |||||
| L2/97-030 | N1503 (pdf, doc) | Umamaheswaran, V. S.; Ksar, Mike (1997-04-01), "9.2", Unconfirmed Minutes of WG 2 Meeting #32, Singapore; 1997-01-20--24 | ||||
| L2/97-254R | Orita, Tetsuji (1997-11-20), Comment on CJK Unified Ideograph Extension-A by IRG | |||||
| L2/97-279 | Kobayashi, Tatsuo (1997-12-01), Comment on Contribution by Tet Orita titled "Comment on CJK Unified Ideograph Extension-A by IRG" | |||||
| L2/98-039 | Aliprand, Joan; Winkler, Arnold (1998-02-24), "3.B.1. Existing compatibility characters also in CJK Extension A", Preliminary Minutes - UTC #74 & L2 #171, Mountain View, CA - December 5, 1997 | |||||
| L2/98-096 | N1723 | CJK Unified Ideographs Extension A, High Quality Printing, Version 2.0, 1998-03-02 | ||||
| L2/98-103 | N1733 | Text for FPDAM #17 - CJK Unified Ideographs Extension A, 1998-03-20 | ||||
| L2/98-171 | N1776 | Text for PDAM registration and FPDAM ballot for ISO 10646-1 Amendment 17 - CJK Unified Ideographs Extension A, 1998-05-01 | ||||
| L2/98-170 | Winkler, Arnold (1998-05-11), PDAM registration and FPDAM ballot for ISO 10646-1 Amendment 17 - CJK Extension A | |||||
| L2/98-286 | N1703 | Umamaheswaran, V. S.; Ksar, Mike (1998-07-02), "9.1.2", Unconfirmed Meeting Minutes, WG 2 Meeting #34, Redmond, WA, USA; 1998-03-16--20 | ||||
| L2/98-334 | Revised Text of ISO/IEC 10646-1/FPDAM 17, AMENDMENT 17: CJK Unified Ideograph Extension A, 1998-11-02 | |||||
| L2/98-347 | Disposition of comments report on SC2 N3090, ISO 10646 Amd. 17: CJK unified ideograph extension A, 1998-11-02 | |||||
| L2/99-010 | N1903 (pdf, html, doc) | Umamaheswaran, V. S. (1998-12-30), "6.7.2", Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25 | ||||
| L2/99-023 | N1943 | Paterson, Bruce; Sato, T. K. (1999-01-08), Revision of 10646-1 Annex T for CJK Unified Ideographs Extension A (Draft) | ||||
| L2/99-156 | Table of replies on ISO/IEC 10646-1/FDAM 17 - CJK Unified Ideographs Extension A, 1999-05-17 | |||||
| L2/99-232 | N2003 | Umamaheswaran, V. S. (1999-08-03), "7.1.3 Revision of Annex T for CJK Extension A", Minutes of WG 2 meeting 36, Fukuoka, Japan, 1999-03-09--15 | ||||
| L2/99-287 | Notice of publication for ISO/IEC 10646-1/Amd. 17, CJK Unified Ideographs Extension A, 1999-08-19 | |||||
| L2/99-335 | N2109 | N674 | Zhang, Zhoucai (1999-09-03), SuperCJK, version 9.0 with Kangxi and HYD data | |||
| L2/03-287 | Cook, Richard (2003-08-24), 16 UniHan.txt errors | |||||
| L2/03-301 | Cook, Richard (2003-08-27), 24 more UniHan.txt errors | |||||
| L2/03-311 | West, Andrew (2003-09-17), Unicode 4.0.1 Beta Review, comments from Andrew C. West | |||||
| 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 | |||||
| L2/03-453 | Minutes of the Editorial Group Ad Hoc Discussion, 2003-12-17 | |||||
| L2/04-208 | N2774R | N1064 | Proposal to add 6 KP source references to existing CJK Unified Ideographs, 2004-05-25 | |||
| N3353 (pdf, doc) | Umamaheswaran, V. S. (2007-10-10), "M51.9", Unconfirmed minutes of WG 2 meeting 51 Hanzhou, China; 2007-04-24/27 | |||||
| L2/07-208 | N3285 | Proposal to replace 11 KP source references to existing ISO/IEC 10646:2003, 2007-07-18 | ||||
| L2/10-215 | Lunde, Ken (2010-06-22), "Hanyo-Denshi" IVD Collection (PRI 167) to Adobe-Japan1-6 Mapping Table | |||||
| L2/13-016 | Suignard, Michel (2013-01-24), CJK Ext-A fix | |||||
| L2/13-011 | Moore, Lisa (2013-02-04), "CJK — Extension-A Fix", UTC #134 Minutes | |||||
| N4403 (pdf, doc) | Umamaheswaran, V. S. (2014-01-28), "Resolution M61.02 item b", Unconfirmed minutes of WG 2 meeting 61, Holiday Inn, Vilnius, Lithuania; 2013-06-10/14 | |||||
| L2/14-149 | N4544 | Suignard, Michel (2014-07-18), CJK ideographs glyphs representation and sources references | ||||
| N4553 (pdf, doc) | Umamaheswaran, V. S. (2014-09-16), "9.1.3", Minutes of WG 2 meeting 62 Adobe, San Jose, CA, USA | |||||
| L2/14-260 | N4621 | Suignard, Michel (2014-10-23), CJK chart and source references update | ||||
| L2/16-052 | N4603 (pdf, doc) | Umamaheswaran, V. S. (2015-09-01), "M63.05", Unconfirmed minutes of WG 2 meeting 63 | ||||
| L2/17-180 | N2202 | Chan, Eiso (2017-06-02), Request for consideration to add kIRG_GSource values to thirteen ideographs and change two G-source glyphs for the Table of General Standard Chinese Characters [Affects U+37C3 and 3FE0] | ||||
| N4974 | N2301 | Request of TCA's Horizontal Extension for Chemical Terminology [Affects U+44EC], 2018-06-12 | ||||
| N4987 | Proposal on China's Horizontal Extension for 14 CJK Ideographs [Affects U+37C3 and 3FE0], 2018-06-13 | |||||
| N4988 | Proposal on Updating 11 G glyphs of CJK Unified Ideographs to ISO/IEC 10646 [Affects U+3B9D, 3CFD and 4A76], 2018-06-13 | |||||
| N5016 | N2349 | Shin, Sanghyun; Cho, Sungduk; Pyo, Seungju; Kim, Kyongsok (2018-12-13), Request to move character K6-1022 in Horizontal Extension of KS X 1027-5 from U+3EAC to U+248F2 | ||||
| N5020 (pdf, doc) | Umamaheswaran, V. S. (2019-01-11), "10.4.6, 10.4.8 and 10.4.9", Unconfirmed minutes of WG 2 meeting 67 | |||||
| L2/19-242 | N5094 | N2370 | Chan, Eiso (2019-02-14), 20 questionable V4-Source characters in Ext. C and Ext. E [Affects U+440B] | |||
| N2369 | Chan, Eiso (2019-05-06), Feedback on IRGN2369 [Affects U+38C7 and 46E9] | |||||
| N5086 | N2379 | Proposal of China's horizontal extension for technical used characters [Affects U+3472, 3DB8 and 3FE0], 2019-05-10 | ||||
| L2/19-237 | N5068 | Editorial Report on Miscellaneous Issues (meeting IRG#52) [Affects U+3EAC and 440B], 2019-05-17 | ||||
| L2/19-241 | N5083 | N2391 | Errata report for WG2 submission_TCA [Affects U+440B], 2019-05-31 | |||
| L2/22-258 | Shin, SangHyun; Kim, Kyongsok (2022-10-14), Changing glyphs and IDSs of 97 KR Hanja chars containing '叱 (U+53F1)' [Affects U+357E, 358B–358E, 3599–359D, 35AF, 35B0, 35B2, 35B3, 35DF–35E1, 35EF, 360F, and 3612] | |||||
| L2/22-247 | Lunde, Ken (2022-11-01), "25) L2/22-258", CJK & Unihan Group Recommendations for UTC #173 Meeting | |||||
| L2/22-241 | Constable, Peter (2022-11-09), "E.1 25) L2/22-258", Approved Minutes of UTC Meeting 173 | |||||
| L2/23-011 | Lunde, Ken (2023-01-11), "07) 2022-12-27 19:01:03 CST [Affects U+44D5]", CJK & Unihan Group Recommendations for UTC #174 Meeting | |||||
| L2/23-005 | Constable, Peter (2023-02-01), "E.1 Section 07) 2022-12-27 19:01:03 CST [Affects U+44D5]", UTC #174 Minutes | |||||
| 13.0 | U+4DB6..4DBF | 10 | L2/19-242 | N5094 | N2370 | Chan, Eiso (2019-02-14), 20 questionable V4-Source characters in Ext. C and Ext. E [Affects U+4DB6] |
| L2/19-239 | N5080 | N2338 | TCA's feedback to IRG N2338 [Affects U+4DB7, 4DB9, 4DBE and 4DBF], 2019-05-14 | |||
| L2/19-240 | N5081 | N2337 | Disunification of U+2F83B/U+5406 [Affects U+4DB8], 2019-05-14 | |||
| L2/19-241 | N5083 | N2391 | Errata report for WG2 submission_TCA [Affects U+4DBA, 4DBB, 4DBC and 4DBD], 2019-05-31 | |||
| N5122 | "M68.07", Unconfirmed minutes of WG 2 meeting 68, 2019-12-31 | |||||
| L2/19-270 | Moore, Lisa (2019-10-07), "Consensus 160-C14", UTC #160 Minutes | |||||
| ||||||
References
- ↑ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
- ↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
- ↑ "18.1: Han (§ Blocks Containing Han Ideographs)" (PDF). The Unicode Standard: Core Specification. Version 15.0. Unicode Consortium. pp. 741–744. 2022. ISBN 978-1-936213-32-0.
- ↑ "Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium.
- ↑ "Ideographic Variation Database". Unicode Consortium.
- ↑ "UTS #37, Unicode Ideographic Variation Database". Unicode Consortium.
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