CJK Compatibility
| CJK Compatibility | |
|---|---|
| Range | U+3300..U+33FF (256 code points) |
| Plane | BMP |
| Scripts | Katakana (88 char.) Common (168 char.) |
| Assigned | 256 code points |
| Unused | 0 reserved code points |
| Unicode version history | |
| 1.0.0 (1991) | 187 (+187) |
| 1.1 (1993) | 249 (+62) |
| 4.0 (2003) | 256 (+7) |
| Unicode documentation | |
| Code chart ∣ Web page | |
| Note: [1] [2] | |
CJK Compatibility is a Unicode block containing square symbols (both CJK and Latin alphanumeric) encoded for compatibility with East Asian character sets. In Unicode 1.0, it was divided into two blocks, named CJK Squared Words (U+3300–U+337F) and CJK Squared Abbreviations (U+3380–U+33FF).[3] The square forms can have different presentations when they are used in horizontal or vertical text. For example, the characters U+333E ㌾ SQUARE BORUTO (from ボルト) and U+3327 ㌧ SQUARE TON (from トン) should look different in horizontal and in vertical right-to-left:[4] トンボルト
Characters U+337B through U+337E are the Japanese era calendar scheme symbols Heisei (平成), Shōwa (昭和), Taishō (大正) and Meiji (明治) (also available in certain legacy sets, such as the "NEC special characters" extension for JIS X 0208, as included in Microsoft's version and later JIS X 0213).[5] The Reiwa era symbol (U+32FF ㋿ SQUARE ERA NAME REIWA) is in Enclosed CJK Letters and Months (the CJK Compatibility block having been fully allocated by the time of its commencement).
Block
[edit ]- 1.^ As of Unicode version 16.0
History
[edit ]The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Compatibility block:
| Version | Final code points[a] | Count | L2 ID | WG2 ID | Document |
|---|---|---|---|---|---|
| 1.0.0 | U+3300..3357, 337B..33DD | 187 | (to be determined) | ||
| N2956 | Freytag, Asmus (2005年08月12日), "Representative Glyph for U+33AC SQUARE GPA", Unicode Consortium Liaison Report for WG2 Meeting #47 | ||||
| N2953 (pdf, doc) | Umamaheswaran, V. S. (2006年02月16日), "M47.16 (Miscellaneous glyph defects)", Unconfirmed minutes of WG 2 meeting 47, Sophia Antipolis, France; 2005年09月12日/15 | ||||
| 1.1 | U+3358..3376, 33E0..33FE | 62 | (to be determined) | ||
| 4.0 | U+3377..337A, 33DE..33DF, 33FF | 7 | L2/99-353 | N2056 | "3", Amendment of the part concerning the Korean characters in ISO/IEC 10646-1:1998 amendment 5, 1999年07月29日 |
| L2/99-380 | Proposal for a New Work item (NP) to amend the Korean part in ISO/IEC 10646-1:1993, 1999年12月07日 | ||||
| L2/99-380.3 | Annex B, Special characters compatible with KPS 9566-97 (To be extended), 1999年12月07日 | ||||
| L2/00-084 | N2182 | "3", Amendment of the part concerning the Korean characters in ISO/IEC 10646-1:1998 amendment 5 (Cover page and outline of proposal L2/99-380), 1999年12月07日 | |||
| L2/99-382 | Whistler, Ken (1999年12月09日), "2.3", Comments to accompany a U.S. NO vote on JTC1 N5999, SC2 N3393, New Work item proposal (NP) for an amendment of the Korean part of ISO/IEC 10646-1:1993 | ||||
| L2/00-066 | N2170 (pdf, doc) | "3", The technical justification of the proposal to amend the Korean character part of ISO/IEC 10646-1 (proposed addition of 79 symbolic characters), 2000年02月10日 | |||
| L2/00-073 | N2167 | Karlsson, Kent (2000年03月02日), Comments on DPRK New Work Item proposal on Korean characters | |||
| L2/00-285 | N2244 | Proposal for the Addition of 82 Symbols to ISO/IEC 10646-1:2000, 2000年08月10日 | |||
| L2/00-291 | Everson, Michael (2000年08月30日), Comments to Korean proposals (L2/00-284 - 289) | ||||
| N2282 | Report of the meeting of the Korean script ad hoc group, 2000年09月21日 | ||||
| L2/01-349 | N2374R | Proposal to add of 70 symbols to ISO/IEC 10646-1:2000, 2001年09月03日 | |||
| L2/01-387 | N2390 | Kim, Kyongsok (2001年10月13日), ROK's Comments about DPRK's proposal, WG2 N 2374, to add 70 symbols to ISO/IEC 10646-1:2000 | |||
| L2/01-388 | N2392 | Kim, Kyongsok (2001年10月16日), A Report of Korean Script ad hoc group meeting on Oct. 15, 2001 | |||
| L2/01-420 | Whistler, Ken (2001年10月30日), "f. Miscellaneous symbol additions from DPRK standard", WG2 (Singapore) Resolution Consent Docket for UTC | ||||
| L2/01-458 | N2407 | Umamaheswaran, V. S. (2001年11月16日), Request to Korean ad hoc group to generate mapping tables between ROK and DPRK national standards | |||
| |||||
See also
[edit ]References
[edit ]- ^ "Unicode character database". The Unicode Standard. Retrieved 2023年07月26日.
- ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023年07月26日.
- ^ "3.8: Block-by-Block Charts" (PDF). The Unicode Standard. version 1.0. Unicode Consortium.
- ^ Lunde, Ken; Ishi, Koji (2023年07月17日). "UAX #50: Unicode Vertical Text Layout". www.unicode.org. Retrieved 13 June 2024.
- ^ Lunde, Ken (2019年03月21日). "A Brief History of Japan's Era Name Ligatures". CJK Type Blog. Adobe Inc.