CJK Unified Ideographs Extension D
CJK Unified Ideographs Extension D | |
---|---|
Range | U+2B740..U+2B81F (224 code points) |
Plane | SIP |
Scripts | Han |
Assigned | 222 code points |
Unused | 2 reserved code points |
Unicode version history | |
6.0 | 222 (+222) |
Note: [1][2] |
CJK Unified Ideographs Extension D is a Unicode block containing uncommon CJK ideographs for Chinese, Japanese, Korean, and Vietnamese, some of which are in current use. Much smaller than most Unicode blocks for CJK unified ideographs, Extension D consists of characters which were submitted to the Ideographic Research Group as "urgently needed characters" between 2006 and 2009. Characters submitted during the same period which were needed less urgently were included in CJK Unified Ideographs Extension E instead.[3]
The block has hundreds 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
History
The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Unified Ideographs Extension D block:
Version | Final code points[lower-alpha 1] | Count | L2 ID | WG2 ID | IRG ID | Document |
---|---|---|---|---|---|---|
L2/09-214 | N3560 | IRG URGENT Version4.0(M Set) [Macao set], 2008-12-24 | ||||
N3560_C | N1532R | Evidences of Urgently Needed Characters (China set), 2008-12-31 | ||||
N3560_U | Jenkins, John (2009-04-14), UNC source information for U-source characters | |||||
N3560_J | Lunde, Ken (2007-11-11), Additional references for IRG N1367 | |||||
N3560_T | N1305 | Request to add 24 new characters to CJK D, 2007-05-30 | ||||
L2/09-234 | N3603 (pdf, doc) | Umamaheswaran, V. S. (2009-07-08), Unconfirmed minutes of WG 2 meeting 54 | ||||
L2/09-177 | Whistler, Ken (2009-05-01), WG2 Consent Docket | |||||
L2/09-220 | Jenkins, John (2009-05-15), Requirement for Additional Source Information in the Extension D Documentation | |||||
L2/09-104 | Moore, Lisa (2009-05-20), UTC #119 / L2 #216 Minutes | |||||
L2/09-239 | Source information for CJK Extension D on ISO/IEC 10646, 2009-07-10 | |||||
N3703 (pdf, doc) | Umamaheswaran, V. S. (2010-04-13), Unconfirmed minutes of WG 2 meeting no. 55, Tokyo 2009-10-26/30 | |||||
N3831 | Input from China on G sources CJK Extension D, 2010-04-21 | |||||
L2/10-108 | Moore, Lisa (2010-05-19), UTC #123 / L2 #220 Minutes | |||||
|
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/.
![]() | Original source: https://en.wikipedia.org/wiki/CJK Unified Ideographs Extension D.
Read more |