CJK Strokes (Unicode block)
| CJK Strokes | |
|---|---|
| Range | U+31C0..U+31EF (48 code points) |
| Plane | BMP |
| Scripts | Common |
| Assigned | 39 code points |
| Unused | 9 reserved code points |
| Source standards | HKSCS–2001 |
| Unicode Version History | |
| 4.1 (2005) | 16 (+16) |
| 5.1 (2008) | 36 (+20) |
| 15.1 (2023) | 37 (+1) |
| 16.0 (2024) | 39 (+2) |
| Unicode documentation | |
| Code chart ∣ Web page | |
| Note: [1][2] | |
CJK Strokes is a Unicode block containing examples of each of the standard CJK stroke types.
Block
[edit]| CJK Strokes[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+31Cx | ㇀ | ㇁ | ㇂ | ㇃ | ㇄ | ㇅ | ㇆ | ㇇ | ㇈ | ㇉ | ㇊ | ㇋ | ㇌ | ㇍ | ㇎ | ㇏ |
| U+31Dx | ㇐ | ㇑ | ㇒ | ㇓ | ㇔ | ㇕ | ㇖ | ㇗ | ㇘ | ㇙ | ㇚ | ㇛ | ㇜ | ㇝ | ㇞ | ㇟ |
| U+31Ex | ㇠ | ㇡ | ㇢ | ㇣ | | | ㇯ | |||||||||
| Notes | ||||||||||||||||
Variant forms
[edit]The CJK Strokes block has seventeen variation sequences defined for standardized variants,[3] depending on the font:
| Base character | Base | +VS01 | Description |
|---|---|---|---|
| U+31C0 CJK STROKE T | ㇀ | ㇀︀ | dotted T form |
| U+31C6 CJK STROKE HZG | ㇆ | ㇆︀ | curved Z form |
| U+31C9 CJK STROKE SZWG | ㇉ | ㇉︀ | slanted S form |
| U+31CF CJK STROKE N | ㇏ | ㇏︀ | curved starting N form |
| U+31D0 CJK STROKE H | ㇐ | ㇐︀ | rising H form |
| U+31D1 CJK STROKE S | ㇑ | ㇑︀ | slanted S form |
| U+31D2 CJK STROKE P | ㇒ | ㇒︀ | flat P form |
| U+31D4 CJK STROKE D | ㇔ | ㇔︀ | to bottom left form |
| U+31D5 CJK STROKE HZ | ㇕ | ㇕︀ | slanted Z form |
| U+31D7 CJK STROKE SZ | ㇗ | ㇗︀ | slanted S form |
| U+31DB CJK STROKE PD | ㇛ | ㇛︀ | slanted SD form |
| U+31DC CJK STROKE PZ | ㇜ | ㇜︀ | upwards T form |
| U+31DD CJK STROKE TN | ㇝ | ㇝︀ | horizontal H curved N form |
| U+31E5 CJK STROKE SZP | | ︀ | slanted S form |
| Base character | Base | +VS02 | Description |
|---|---|---|---|
| U+31C6 CJK STROKE HZG | ㇆ | ㇆︁ | rising H form |
| U+31CF CJK STROKE N | ㇏ | ㇏︁ | flat N form |
| U+31DD CJK STROKE TN | ㇝ | ㇝︁ | upwards T flat N form |
History
[edit]The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Strokes block:
| Version | Final code points[a] | Count | L2 ID | WG2 ID | IRG ID | Document |
|---|---|---|---|---|---|---|
| 4.1 | U+31C0..31CF | 16 | L2/03-411 | Goldsmith, Deborah; Muller, Eric (2003-10-31), Unencoded chars in GB 18030 & HK-SCS | ||
| L2/04-161R | N2807 | Suignard, Michel; Muller, Eric; Jenkins, John (2004-06-17), HKSCS and GB 18030 PUA characters, background document | ||||
| L2/04-263 | N2808 | Suignard, Michel (2004-06-17), HKSCS and GB 18030 PUA characters, request for additional characters and related information | ||||
| L2/05-058 | Whistler, Ken (2005-02-03), "C. Changes to CJK strokes block", WG2 Consent Docket, Part 1: Unicode 4.1 Issues | |||||
| L2/05-026 | Moore, Lisa (2005-05-16), "WG2 - Unicode 4.1 Consent Docket (B.1.16.1)", UTC #102 Minutes | |||||
| N2681 | Koo, Night (2024-03-18), Preliminary Proposal to Add Standardised Variation Sequences for CJK Strokes [Affects U+31C0, 31C6, 31C9, and 31CF] | |||||
| L2/26-073 | Koo, Night (2026-03-04), Proposal to Add Standardised Variation Sequences for CJK Strokes [Affects U+31C0, 31C6, 31C9, and 31CF] | |||||
| L2/26-099 | Lunde, Ken (2026-04-11), "32 [Affects U+31C0, 31C6, 31C9, and 31CF]", CJK & Unihan Working Group Recommendations for UTC #187 Meeting | |||||
| L2/26-093 | "Consensus 187-C36 [Affects U+31C0, 31C6, 31C9, and 31CF]", UTC #187 meeting minutes, 2026-04-29, Accept ... 17 new standardized variation sequences | |||||
| 5.1 | U+31D0..31E3 | 20 | L2/03-387 | N986 | Cook, Richard (2003-10-26), Chinese Character Description Language (CDL) | |
| L2/03-404 | Bishop, Thomas; Cook, Richard (2003-10-28), A Specification for CDL -- Character Description Language | |||||
| L2/03-420 | N987 | Bishop, Thomas; Cook, Richard (2003-11-04), Character Description Language (CDL): The Set of Basic CJK Unified Stroke Types | ||||
| L2/04-221 | N2817 | N1096 | Bishop, Thomas; Cook, Richard (2004-06-07), Proposal to add a block of CJK Unified Basic Strokes to the UCS | |||
| L2/04-367 | N2864 | N1097 | Bishop, Thomas; Cook, Richard (2004-10-25), Proposal to add a block of CJK Basic Strokes to the UCS | |||
| L2/06-212 | N3063 | N1180 | Lu, Qin (2006-04-03), Proposed additions to the CJK Strokes block of the UCS | |||
| L2/06-108 | Moore, Lisa (2006-05-25), "C.4", UTC #107 Minutes | |||||
| N3103 (pdf, doc) | Umamaheswaran, V. S. (2006-08-25), "M48.12", Unconfirmed minutes of WG 2 meeting 48, Mountain View, CA, USA; 2006-04-24/27 | |||||
| L2/23-221 | Koo, Night (2023-10-01), Proposal to modify the representative glyph of U+31D2 CJK STROKE P | |||||
| L2/23-237R | Lunde, Ken (2023-11-02), "19", CJK & Unihan Group Recommendations for UTC #177 Meeting | |||||
| L2/23-231 | Constable, Peter (2023-12-08), "Section 19", UTC #177 Minutes, Consensus 177-C14: Accept the proposal to change the representative glyph for U+31D2 | |||||
| N2681 | Koo, Night (2024-03-18), Preliminary Proposal to Add Standardised Variation Sequences for CJK Strokes [Affects U+31D0-31D2, 31D4, 31D5, 31D7, and 31DB-31DD] | |||||
| L2/26-073 | Koo, Night (2026-03-04), Proposal to Add Standardised Variation Sequences for CJK Strokes [Affects U+31D0-31D2, 31D4, 31D5, 31D7, and 31DB-31DD] | |||||
| L2/26-099 | Lunde, Ken (2026-04-11), "32 [Affects U+31D0-31D2, 31D4, 31D5, 31D7, and 31DB-31DD]", CJK & Unihan Working Group Recommendations for UTC #187 Meeting | |||||
| L2/26-093 | "Consensus 187-C36 [Affects U+31D0-31D2, 31D4, 31D5, 31D7, and 31DB-31DD]", UTC #187 meeting minutes, 2026-04-29, Accept ... 17 new standardized variation sequences | |||||
| 15.1 | U+31EF | 1 | L2/21-118R | N2492 | Lunde, Ken; Jenkins, John H. (2021-08-11), Preliminary proposal to add a new provisional kIDS property (Unihan) | |
| L2/22-136 | West, Andrew (2022-07-08), Feedback on Proposals to Encode New Ideographic Description Characters | |||||
| L2/22-191 | N2572 | Lunde, Ken; Jenkins, John; West, Andrew (2022-08-24), Proposal to encode five new Ideographic Description Characters | ||||
| L2/22-227 | SAT Feedback to "Preliminary proposal to add a new provisional kIDS property (Unihan)" (IRGN2492) and "Proposal to encode five new Ideographic Description Characters" (IRGN2572), 2022-08-29 | |||||
| L2/22-228 | Fan, Ming (2022-09-02), Feedback on IRGN2572 "Proposal to encode 5 new ideograph description characters" | |||||
| L2/22-247 | Lunde, Ken (2022-11-01), "29", CJK & Unihan Group Recommendations for UTC #173 Meeting | |||||
| L2/22-241 | Constable, Peter (2022-11-09), "E.1 29", Approved Minutes of UTC Meeting 173 | |||||
| 16.0 | U+31E4..31E5 | 2 | N1212 | China national body (2006-06-05), Proposed dis-unification of 2 strokes | ||
| N1217 | China national body (2006-06-07), Proposition to drop IRGN1212 from China | |||||
| L2/14-007 | Low, Ian; Cook, Richard (2014-01-13), 12 additional characters for Unicode CJK Stroke group (email thread) | |||||
| L2/23-220 | N2647 | Koo, Night (2023-10-01), Proposal to encode (disunify) two stroke characters in CJK Strokes block | ||||
| L2/23-237R | Lunde, Ken (2023-11-02), "18", CJK & Unihan Group Recommendations for UTC #177 Meeting | |||||
| L2/23-231 | Constable, Peter (2023-12-08), "Section 18", UTC #177 Minutes | |||||
| L2/24-044 | Koo, Night (2024-02-19), Correcting the proposed name of new character U+31E4 in Unicode 16.0 | |||||
| N2681 | Koo, Night (2024-03-18), Preliminary Proposal to Add Standardised Variation Sequences for CJK Strokes [Affects U+31E5] | |||||
| L2/24-067 | Lunde, Ken (2024-04-19), "32 [Affects U+31E4]", CJK & Unihan Working Group Recommendations for UTC #179 Meeting | |||||
| L2/24-061 | Constable, Peter (2024-04-29), "Consensus 179-C17", UTC #179 Minutes, Accept the proposal to change the name of U+31E4, from CJK STROKE HZXG to CJK STROKE HXG | |||||
| L2/26-073 | Koo, Night (2026-03-04), Proposal to Add Standardised Variation Sequences for CJK Strokes [Affects U+31E5] | |||||
| L2/26-099 | Lunde, Ken (2026-04-11), "32 [Affects U+31E5]", CJK & Unihan Working Group Recommendations for UTC #187 Meeting | |||||
| L2/26-093 | "Consensus 187-C36 [Affects U+31E5]", UTC #187 meeting minutes, 2026-04-29, Accept ... 17 new standardized variation sequences | |||||
| ||||||
References
[edit]- ↑ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
- ↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
- ↑ "Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium.