Английская Википедия:Ideographic Description Characters (Unicode block)
Ideographic Description Characters is a Unicode block containing graphic characters used for describing CJK ideographs. They are used in Ideographic Description Sequences (IDS) to provide a description of an ideograph, in terms of what other ideographs make it up and how they are laid out relative to one another.[1] An IDS provides the reader with a description of an ideograph that cannot be represented properly, usually because it is not encoded in Unicode; rendering systems are not intended to automatically compose the pieces into a complete ideograph, and the descriptions are not standardized.
U+2FF0 to U+2FFB were introduced from GBK; U+2FFC to U+2FFF were devised later and introduced in Unicode 15.1 (2023).
Block
Шаблон:Unicode chart Ideographic Description Characters
Ideographic Description Sequences
Ideographic Description Sequences are sequences of characters that represent a Chinese character structure as defined by the Unicode standard.
Below are the 16 characters as defined by Unicode in this block:
| Unicode | Char | Meaning | Example 1 | IDS | Example 2 | IDS |
|---|---|---|---|---|---|---|
| U+2FF0 | ⿰ | Two components combined left to right | 相 | ⿰木目 | 𠁢 | ⿰丨㇍ |
| U+2FF1 | ⿱ | Two components combined above to below | 杏 | ⿱木口 | 𠚤 | ⿱𠂊丶 |
| U+2FF2 | ⿲ | Three components combined left to middle and right | 衍 | ⿲彳氵亍 | 𠂗 | ⿲丿夕乚 |
| U+2FF3 | ⿳ | Three components combined above to middle and below | 京 | ⿳亠口小 | 𠋑 | ⿳亼目口 |
| U+2FF4 | ⿴ | One component fully wrapping another component | 回 | ⿴囗口 | 𠀬 | ⿴㐁人 |
| U+2FF5 | ⿵ | One component surround three sides of another component (opening at bottom) | 凰 | ⿵几皇 | 𧓉 | ⿵齊虫 |
| U+2FF6 | ⿶ | One component surround three sides of another component (opening at top) | 凶 | ⿶凵㐅 | 义 | ⿶乂丶 |
| U+2FF7 | ⿷ | One component surround three sides of another component (opening at right) | 匠 | ⿷匚斤 | 𧆬 | ⿷虎九 |
| U+2FF8 | ⿸ | One component surround top and left side of another component | 病 | ⿸疒丙 | 𤆯 | ⿸耂火 |
| U+2FF9 | ⿹ | One component surround top and right side of another component | 戒 | ⿹戈廾 | 𢧌 | ⿹或壬 |
| U+2FFA | ⿺ | One component surround bottom and left side of another component | 超 | ⿺走召 | 𥘶 | ⿺礼分 |
| U+2FFB | ⿻ | Two components overlapped | 巫 | ⿻工从 | 𣏃 | ⿻木⿻コ一 |
| U+2FFC | ⿼ | One component surround three sides of another component (opening at left) | 㕚 | ⿼叉丶 | 𬺹 | ⿼コ二 |
| U+2FFD | ⿽ | One component surround bottom and right side of another component | 氷 | ⿽水丶 | 斗 | ⿽⺀十 |
| U+2FFE | ⿾ | Horizontal reflection | 卐 | ⿾卍 | 𣥄 | ⿾正 |
| U+2FFF | ⿿ | Rotation | 𠕄 | ⿿凹 | 𠄔 | ⿿予 |
Two other related ideographic description characters are not encoded in this Unicode block, but of which may be used in ideogprahic description sequences:
| Unicode | Char | Block | Meaning | Example 1 | IDS | Example 2 | IDS |
|---|---|---|---|---|---|---|---|
| U+303E | 〾 | CJK Symbols and Punctuation | Variant but not equivalent | 㬵 (U+3B35) | 〾胶 (U+80F6)[2] | 𫜵 | 〾爫[3] |
| U+31EF | ㇯ | CJK Strokes | Subtraction | 乒 | ㇯兵丶 | 𧰨 | ㇯豕一 |
This is the syntax of IDS in EBNF:
IDS := Ideographic | Radical | CJK_Stroke | Private Use | U+FF1F | IDS_UnaryOperator IDS | IDS_BinaryOperator IDS IDS | IDS_TrinaryOperator IDS IDS IDS
CJK_Stroke := U+31C0 | U+31C1 | ... | U+31E3
IDS_UnaryOperator := U+2FFE | U+2FFF
IDS_BinaryOperator := U+2FF0 | U+2FF1 | U+2FF4 | ... | U+2FFD | U+31EF
IDS_TrinaryOperator:= U+2FF2 | U+2FF3
History
The following Unicode-related documents record the purpose and process of defining specific characters in the Ideographic Description Characters block:
See also
References
Шаблон:Reflist Шаблон:CJK ideographs in Unicode
- ↑ IDS are described in chapter 18.2 of the Unicode Standard 9.0 on pages 689 through 692.
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
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