CJK Unified Ideographs Extension C
From HandWiki
Short description: Unicode character block
Short description: Unicode character block
| CJK Unified Ideographs Extension C | |
|---|---|
| Range | U+2A700..U+2B73F (4,160 code points) |
| Plane | SIP |
| Scripts | Han |
| Assigned | 4,149 code points |
| Unused | 11 reserved code points |
| Unicode version history | |
| 5.2 | 4,149 (+4,149) |
| Note: [1][2] | |
CJK Unified Ideographs Extension C is a Unicode block containing rare and historic CJK ideographs for Chinese, Japanese, Korean, and Vietnamese submitted to the Ideographic Research Group between 2002 and 2006, plus five "urgently needed" characters added in Unicode versions 14.0 and 15.0, some of which had previously been mistakenly unified with other characters.[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.
Note that the Katakana ligature 𪜈 (U+2A708) has been erroneously encoded in this block as a Han character.[6]
Block
Template:Unicode chart CJK Unified Ideographs Extension C
History
The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Unified Ideographs Extension C block:
| Version | Final code points[lower-alpha 1] | Count | L2 ID | WG2 ID | IRG ID | Document |
|---|---|---|---|---|---|---|
| 5.2 | U+2A700..2B734 | 4,149 | L2/02-462 | N2563 | Suignard, Michel (2002-12-11), CJK Compatibility Ideograph source reference fixes | |
| L2/06-390 | N3134 | N1226 | Proposal to encode CJK Unified Ideographs Extension C1 in SIP, 2006-08-27 | |||
| N3153 (pdf, doc) | Umamaheswaran, V. S. (2007-02-16), Unconfirmed minutes of WG 2 meeting 49 AIST, Akihabara, Tokyo, Japan; 2006-09-25/29 | |||||
| L2/06-363 | Jenkins, John (2006-11-01), UTC Extension C1 Characters | |||||
| L2/06-351 | Whistler, Ken (2006-11-06), WG2 Consent Docket | |||||
| L2/06-390.1 | N3134.1 | Proposal to encode CJK Unified Ideographs Extension C1 in SIP, Data files part 1, 2006-11-13 | ||||
| L2/06-390.2 | N3134.2 | Proposal to encode CJK Unified Ideographs Extension C1 in SIP, Data files part 2, 2006-11-13 | ||||
| L2/06-390.3 | N3134.3 | Proposal to encode CJK Unified Ideographs Extension C1 in SIP, Data files part 3, 2006-11-13 | ||||
| N3134.4 | Proposal to encode CJK Unified Ideographs Extension C1 in SIP, Attachment B (detailed source information for every character), 2006-11-13 | |||||
| L2/06-404 | N3190 | Lu, Qin (2006-12-21), CJK Ext. C Multicolumn Code Table | ||||
| L2/07-125 | N3244 | Review of CJK-C Repertoire, 2007-04-24 | ||||
| N3267 | Summary response to comments on CJK Ext. C in pDam4, 2007-04-25 | |||||
| N3353 (pdf, doc) | Umamaheswaran, V. S. (2007-10-10), Unconfirmed minutes of WG 2 meeting 51 Hanzhou, China; 2007-04-24/27 | |||||
| L2/07-160 | Jenkins, John (2007-05-10), U-source Correction for Extension C | |||||
| L2/07-118R2 | Moore, Lisa (2007-05-23), UTC #111 Minutes | |||||
| L2/07-244 | N3281, N3281-A, N3281-B | N1331 | Lu, Qin (2007-07-16), Request for Glyph Change in CJK C PDAM5 | |||
| L2/07-245 | N3280, N3280-A, N3280-B | N1330 | Lu, Qin (2007-07-16), Request for Removal of Characters in CJK C PDAM5 | |||
| L2/07-268 | N3253 (pdf, doc) | Umamaheswaran, V. S. (2007-07-26), Unconfirmed minutes of WG 2 meeting 50, Frankfurt-am-Main, Germany; 2007-04-24/27 | ||||
| L2/07-225 | Moore, Lisa (2007-08-21), UTC #112 Minutes | |||||
| N3279 | CJK Extension C code charts, spreadsheet, chart part 1, chart part 2, 2007-10-22 | |||||
| L2/08-227 | Suignard, Michel (2008-05-15), CJK Extension C Repertoire | |||||
| L2/08-310 | Cook, Richard (2008-08-12), Fonts for Extension B and C and IRG | |||||
| L2/08-161R2 | Moore, Lisa (2008-11-05), UTC #115 Minutes, "Approve 4,149 CJK ideographs in Extension C at codepoints U+2A700..U+2B734 for encoding in a future version of the standard." | |||||
| L2/10-195 | Suignard, Michel (2010-05-10), CJK Charts | |||||
| L2/11-243 | N4111 | Sources for Orphaned CJK Ideographs, 2011-06-14 | ||||
| L2/11-254 | Constable, Peter (2011-06-20), UTC Liaison Report from WG2 | |||||
| N4103 | Unconfirmed minutes of WG 2 meeting 58, 2012-01-03 | |||||
| N4558 | Request of Changing One CJK_C Source and Glyph [U+2A92F], 2014-02-25 | |||||
| N4553 (pdf, doc) | Umamaheswaran, V. S. (2014-09-16), 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), Unconfirmed minutes of WG 2 meeting 63 | ||||
| N4739 | Unconfirmed minutes of WG 2 meeting 64, 2016-08-31 | |||||
| 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+24A7D, U+25ED7, U+2677C, U+26C21, U+2A8FB, U+2A917, and U+2AA30] | ||||
| N4987 | Proposal on China's Horizontal Extension for 14 CJK Ideographs [Affects U+2A917 and 2AA30], 2018-06-13 | |||||
| N4988 | Proposal on Updating 11 G glyphs of CJK Unified Ideographs to ISO/IEC 10646 [Affects U+2A8FB], 2018-06-13 | |||||
| N5020 (pdf, doc) | Umamaheswaran, V. S. (2019-01-11), 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+2B1E5] | |||
| N5086 | N2379 | Proposal of China's horizontal extension for technical used characters [Affects U+2AED5, U+2AEF3, U+2AF76 and U+2B09F], 2019-05-10 | ||||
| L2/19-237 | N5068 | Editorial Report on Miscellaneous Issues (meeting IRG#52) [Affects U+2B1C3 and U+2B1E5], 2019-05-17 | ||||
| L2/19-241 | N5083 | N2391 | Errata report for WG2 submission_TCA [Affects U+2B1C3], 2019-05-31 | |||
| L2/22-077 | N2512R | Shin, SangHyun; Cho, Sungduk; Kim, Kyongsok (2021-11-02), A revised proposal requesting a Horizontal Extension of 51 Hanja chars (previously submitted for ExtF/G/H) [Affects U+2B249] | ||||
| L2/22-061 | Constable, Peter (2022-07-27), Approved Minutes of UTC Meeting 171 | |||||
| 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+2A741, 2B173, and 2B490] | |||||
| L2/22-247 | Lunde, Ken (2022-11-01), CJK & Unihan Group Recommendations for UTC #173 Meeting | |||||
| L2/22-241 | Constable, Peter (2022-11-09), Approved Minutes of UTC Meeting 173 | |||||
| 14.0 | U+2B735 | 1 | L2/20-210 | Chan, Eiso; Collins, Lee; Nhàn, Ngô Thanh (2020-06-10), Request to dis-unify U+722B | ||
| L2/20-235 | Lunde, Ken (2020-09-22), Unihan Ad Hoc Recommendations for UTC #165 Meeting | |||||
| L2/20-237 | Moore, Lisa (2020-10-27), UTC #165 Minutes | |||||
| U+2B736 | 1 | L2/20-291 | N2443 | Chan, Eiso (2020-12-19), Request for consideration to disunify U+3B3F | ||
| L2/21-015 | Lunde, Ken (2021-01-15), CJK & Unihan Group Recommendations for UTC #166 Meeting | |||||
| L2/21-009 | Moore, Lisa (2021-01-27), UTC #166 Minutes | |||||
| U+2B737 | 1 | L2/21-044 | N2446 | UNC Proposal for One G Source Ideograph, 2021-01-07 | ||
| L2/21-015 | Lunde, Ken (2021-01-15), CJK & Unihan Group Recommendations for UTC #166 Meeting | |||||
| L2/21-009 | Moore, Lisa (2021-01-27), UTC #166 Minutes | |||||
| U+2B738 | 1 | L2/21-046 | N2447 | Jiang, Kushim (2021-01-15), Disunification of U+2F83A | ||
| L2/21-072 | Lunde, Ken (2021-04-26), CJK & Unihan Group Recommendations for UTC #167 Meeting | |||||
| L2/21-066 | Moore, Lisa (2021-05-05), UTC #167 Minutes | |||||
| 15.0 | U+2B739 | 1 | L2/22-042 | N2543 | Lunde, Ken (2022-02-18), Proposal to disunify U+5F50 into three separate ideographs-redux | |
| L2/22-076 | N2538R | Submission of One Character for Macao Supplementary Character Set (MSCS), 2022-02-28 | ||||
| L2/22-091 | Chan, Eiso; Collins, Lee; Việt, Ngô Trung (2022-03-10), Vietnam Response to IRGN2509 | |||||
| L2/22-067 | Lunde, Ken (2022-04-16), CJK & Unihan Group Recommendations for UTC #171 Meeting | |||||
| L2/22-061 | Constable, Peter (2022-07-27), Approved Minutes of UTC Meeting 171 | |||||
| 17.0 | U+2B73A | 1 | N5259 | N2676 | Sim, CheonHyeong; Gao, Ziheng (2024-03-09), Proposal to Disunify U+5CC0 | |
| N2671 | Editorial Report on Miscellaneous Issues, 2024-03-21 | |||||
| L2/24-082 | N5255 | N2670 | IRG Meeting #62 Recommendations and Action Items, 2024-03-22 | |||
| L2/24-138 | N5254 | Recommendations from WG 2 meeting 71, 2024-06-14 | ||||
| L2/24-165 | Lunde, Ken (2024-07-11), CJK & Unihan Working Group Recommendations for UTC #180 Meeting | |||||
| L2/24-159 | Constable, Peter (2024-07-29), UTC #180 Minutes, "Accept the disunification of U+5CC0" | |||||
| N2702 | Lunde, Ken (2024-10-24), IRG Meeting #63 Recommendations and Action Items | |||||
| N2704 | Editorial Report on Miscellaneous Issues, 2024-10-24 | |||||
| L2/24-227R | Lunde, Ken (2024-10-30), CJK & Unihan Working Group Recommendations for UTC #181 Meeting | |||||
| L2/24-221 | Constable, Peter (2024-11-12), UTC #181 Minutes, "Accept the urgently-needed G-source ideograph with code point U+2B73B" | |||||
| U+2B73C..2B73D | 2 | N2709 | UNC proposal for 2 TCA's UNC Characters, 2024-10-01 | |||
| N2702 | Lunde, Ken (2024-10-24), IRG Meeting #63 Recommendations and Action Items | |||||
| N2704 | Editorial Report on Miscellaneous Issues, 2024-10-24 | |||||
| L2/24-227R | Lunde, Ken (2024-10-30), CJK & Unihan Working Group Recommendations for UTC #181 Meeting | |||||
| L2/24-221 | Constable, Peter (2024-11-12), UTC #181 Minutes | |||||
| U+2B73E | 1 | N2537 | Sim, CheonHyeong (2022-01-11), Disunification request for 8 characters | |||
| N2730 | Sim, CheonHyeong (2024-10-10), Proposal to Disunify two Kangxi Charaers (Redux) | |||||
| N2702 | Lunde, Ken (2024-10-24), IRG Meeting #63 Recommendations and Action Items | |||||
| N2771 | Disunification of U+2F980 and U+2335F, 2024-10-24 | |||||
| L2/24-227R | Lunde, Ken (2024-10-30), CJK & Unihan Working Group Recommendations for UTC #181 Meeting | |||||
| L2/24-221 | Constable, Peter (2024-11-12), UTC #181 Minutes, "Accept the disunification of U+2335F" | |||||
| U+2B73F | 1 | N2782 | Sim, CheonHyeong (2024-12-30), Proposal to Disunify U+6138 | |||
| N5297 | N2765 | Lunde, Ken (2025-03-21), IRG Meeting #64 Recommendations and Action Items | ||||
| N2767 | Editorial Report on Miscellaneous Issues, 2025-03-21 | |||||
| L2/25-090 | Lunde, Ken (2025-04-11), CJK & Unihan Working Group Recommendations for UTC Meeting #183 | |||||
| L2/25-085 | Leroy, Robin (2025-04-28), UTC #183 Minutes, "Accept the disunification of the KP-source of U+6138, along with the encoding of the disunified ideograph at code point U+2B73F" | |||||
| ||||||
References
- ↑ "Unicode character database". The Unicode Standard. https://www.unicode.org/ucd/. Retrieved 2023-07-26.
- ↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. https://www.unicode.org/versions/enumeratedversions.html. Retrieved 2023-07-26.
- ↑ "18.1: Han (§ Blocks Containing Han Ideographs)", The Unicode Standard: Core Specification, Version 15.0: pp. 741–744, 2022, ISBN 978-1-936213-32-0, https://www.unicode.org/versions/Unicode15.0.0/ch18.pdf#page=6
- ↑ "Ideographic Variation Database". Unicode Consortium. https://www.unicode.org/ivd/.
- ↑ "UTS #37, Unicode Ideographic Variation Database". Unicode Consortium. https://www.unicode.org/reports/tr37/.
- ↑ IRG Working Set 2021
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