CJK Symbols and Punctuation explained

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Note:[1] [2]
In Unicode 1.0.1, during the process of unifying with ISO 10646, the "IDEOGRAPHIC DITTO MARK" (仝) was unified with the unified ideograph at U+4EDD, allowing the Japanese Industrial Standard symbol to be moved from U+32FF in the Enclosed CJK Letters and Months block to the vacated code point at U+3004.[3]

CJK Symbols and Punctuation is a Unicode block containing symbols and punctuation used for writing the Chinese, Japanese and Korean languages. It also contains one Chinese character.

Block

The block has variation sequences defined for East Asian punctuation positional variants.[4] [5] They use (VS01) and (VS02):

Variation sequences for punctuation alignment
U+ 3001 3002 Description
base code point
base + VS01 、︀ 。︀ corner-justified form
base + VS02 、︁ 。︁ centered form

Orientation

Quotation marks and other punctuation have expected differences in behaviour in vertical and horizontal text. The quotation marks 「...」, 『...』 and 〝...〟 rotate 90 degrees, as follows:

See also General Punctuation, for variation selectors and CJK behaviour of the Latin quotation marks ‘...’ and “...”.

Chinese character

The CJK Symbols and Punctuation block contains one Chinese character: . Although it is not covered under "Unified Ideographs", it is treated as a CJK character for all other intents and purposes.[6]

Emoji

The CJK Symbols and Punctuation block contains two emoji:U+3030 and U+303D.[7] [8]

The block has four standardized variants defined to specify emoji-style (U+FE0F VS16) or text presentation (U+FE0E VS15) for thetwo emoji, both of which default to a text presentation.[9]

Emoji variation sequences
U+ 3030 303D
base code point
base+VS15 (text)
base+VS16 (emoji)

History

In Unicode 1.0.1, two changes were made to this block in order to make Unicode 1.0.1 a proper subset of ISO 10646:[10] [11] [12]

The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Symbols and Punctuation block:

See also

Notes and References

  1. Web site: Unicode character database. The Unicode Standard. 2023-07-26.
  2. Web site: Enumerated Versions of The Unicode Standard. The Unicode Standard. 2023-07-26.
  3. Web site: Unicode 1.0.1 Addendum. The Unicode Standard. 1992-11-03. 2016-07-09.
  4. Web site: L2/17-436: Proposal to add standardized variation sequences for fullwidth East Asian punctuation. 2018-01-21. Ken. Lunde.
  5. Web site: Unicode Character Database: Standardized Variation Sequences . The Unicode Consortium.
  6. GB/T 15835-2011《出版物上数字用法》. China Guojia Biaozhun. https://journals.usst.edu.cn/uploadfile/file/GBT%2015835-2011%E3%80%8A%E5%87%BA%E7%89%88%E7%89%A9%E4%B8%8A%E6%95%B0%E5%AD%97%E7%94%A8%E6%B3%95%E3%80%8B.pdf
  7. Web site: UTR #51: Unicode Emoji. Unicode Consortium. 2023-09-05.
  8. Web site: UCD: Emoji Data for UTR #51. Unicode Consortium. 2023-02-01.
  9. Web site: UTS #51 Emoji Variation Sequences . The Unicode Consortium.
  10. Web site: Unicode 1.0.1 Addendum. The Unicode Standard. 1992-11-03. 2016-07-09.
  11. Web site: Unicode character database. The Unicode Standard. 2016-07-09.
  12. Web site: Enumerated Versions of The Unicode Standard. The Unicode Standard. 2016-07-09.