CJK Unified Ideographs Extension B

CJK Unified Ideographs Extension B
Range U+20000..U+2A6DF
(42,720 code points)
Plane SIP
Scripts Han
Assigned 42,711 code points
Unused 9 reserved code points
Unicode version history
3.1 42,711 (+42,711)
Note: [1][2]

CJK Unified Ideographs Extension B is a Unicode block containing rare and historic CJK ideographs for Chinese, Japanese, Korean, and Vietnamese.

The block has dozens of variation sequences defined for standardized variants.[3]

It also has thousands 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.

See also

References

  1. "Unicode character database". The Unicode Standard. Retrieved 2016-07-09.
  2. "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2016-07-09.
  3. "Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium.
  4. "Ideographic Variation Database". Unicode Consortium.
  5. "UTS #37, Unicode Ideographic Variation Database". Unicode Consortium.
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