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词条 Ideographic Description Characters (Unicode block)
释义

  1. Block

  2. History

  3. Ideographic Description Sequences

  4. See also

  5. References

{{Infobox Unicode block
|blockname = Ideographic Description Characters
|rangestart = 2FF0
|rangeend = 2FFF
|script1 = Common
|3_0 = 12
|sources = GB 2312-80
|note = [1][2]
}}

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 a ideograph, in terms of what other ideographs make it up and how they are laid out relative to one another.[3] 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.

Block

{{Unicode chart Ideographic Description Characters}}

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Ideographic Description Characters block:

Version Final code points Count UTC ID L2 ID WG2 ID IRG ID Document
3.0U+2FF0..2FFB12X3L2/95-111}} N1284 title=Ideographic Structure Symbol (additional request)|date=1995-11-07}}
N1303 (html,}} doc)title=Minutes of Meeting 29, Tokyo|date=1996-01-26|first1=V. S.|last1=Umamaheswaran|first2=Mike|last2=Ksar|section=8.13 Ideographic structure symbols}}
N1348 title=Ideographic Components and Composition Scheme|date=1996-02-05}}
N1357 title=Revised Ideographic Structure Symbols|date=1996-04-12}}
N1353 title=Draft minutes of WG2 Copenhagen Meeting # 30|date=1996-06-25|first1=V. S.|last1=Umamaheswaran|first2=Mike|last2=Ksar|section=9}}
L2/97-026}} N1494 title=IRG proposal: Ideographic structure character|date=1996-06-27}}
N1430 N365 title=Proposal Summary Form: Ideographic Structure Character|date=1996-08-01}}
N1453 title=WG 2 Minutes - Quebec Meeting 31|date=1996-12-06|first1=Mike|last1=Ksar|first2=V. S.|last2=Umamaheswaran|section=9.6 Ideographic Structure Characters}}
L2/97-023}} N1486 [https://drive.google.com/uc?id=1c0fmiFUC0O6rmweqgpJ11wBhVdYxnOTL N437] title=IRG #8 Resolutions|date=1997-01-16}}
N1489 title=Supplement to Ideographic Components and Composition Schemes|date=1997-01-16}}
N1490 [https://drive.google.com/uc?id=1E2sNq-aFiLS2favaCWYTEGrR41wiAyNi N436] title=Response to WG2 question on Ideographic Structure Characters|date=1997-01-16}}
L2/97-030}}N1503 (pdf,}} doc)title=Unconfirmed Minutes of WG 2 Meeting #32, Singapore; 1997-01-20--24|date=1997-04-01|first1=V. S.|last1=Umamaheswaran|first2=Mike|last2=Ksar|section=9.6}}
L2/97-114}}N1544 (html,}} doc) [https://drive.google.com/uc?id=1pPtbVZeb4Z7lRHE6yn-CsVOgzUVqMwEY N453] title=Questions on the "Han structure method" described in WG2 N1490 (IRG N436)|date=1997-04-08|first=T. K.|last=Sato}}
[https://www.unicode.org/L2/L1997/97255r.pdf L2/97-255R]}}title=Approved Minutes - UTC #73 & L2 #170 joint meeting, Palo Alto, CA - August 4-5, 1997|date=1997-12-03|first=Joan|last=Aliprand|section=4.B.2 Ideographic Structure Characters}}
N1680 title=Project Sub-Division Proposal on Scheme of Ideograph Description Sequence|date=1997-12-18}}
[https://www.unicode.org/wg2/docs/n1782w97.doc N1782] title=Clause X Ideographic Description Sequence (IDS) – IRG N575|date=1998-05-06}}
[https://www.unicode.org/L2/L1998/98158.html L2/98-158]}}title=Draft Minutes - UTC #76 & NCITS Subgroup L2 #173 joint meeting, Tredyffrin, Pennsylvania, April 20-22, 1998|date=1998-05-26|first1=Joan|last1=Aliprand|first2=Arnold|last2=Winkler|section=SC2 SC2 Action re Ideographic Description Sequences}}
[https://www.unicode.org/wg2/docs/n1842draftpdam28.doc N1842] title=Proposed text for a Draft for amendment 28 - Ideographic Description Sequences|date=1998-06-03}}
L2/98-286}} N1703 title=Unconfirmed Meeting Minutes, WG 2 Meeting #34, Redmond, WA, USA; 1998-03-16--20|date=1998-07-02|first1=V. S.|last1=Umamaheswaran|first2=Mike|last2=Ksar|section=9.5|quote=The original proposal was to use character composition. It has changed from being composition to description over its three year development.}}
[https://www.unicode.org/L2/L1998/02n3186.pdf L2/98-317]}}N1892 (pdf,}} doc)title=Combined CD registration and consideration ballot on WD for 10646-1/Amd. 28, AMENDMENT 28: Ideographic description characters|date=1998-10-22}}
[https://www.unicode.org/L2/L1999/n1903.rtf L2/99-010]}}[https://www.unicode.org/wg2/docs/n1903.pdf N1903 (pdf],}} [https://www.unicode.org/wg2/docs/n1903.htm html], [https://www.unicode.org/wg2/docs/n1903w97.doc doc])title=Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25|date=1998-12-30|first=V. S.|last=Umamaheswaran|section=10.3}}
[https://www.unicode.org/L2/L1999/02n32411.pdf L2/99-072.1]}} [https://www.unicode.org/wg2/docs/n1971.pdf N1971] title=Irish Comments on SC 2 N 3186|date=1999-01-19}}
[https://www.unicode.org/L2/L1999/02n3241.htm L2/99-072]}}[https://www.unicode.org/wg2/docs/n1970.htm N1970 (html],}} [https://www.unicode.org/wg2/docs/n1970.doc doc])title=Summary of Voting on SC 2 N 3186, PDAM ballot on WD for 10646-1/Amd. 28: Ideographic description characters|date=1999-02-05}}
N2023 title=FPDAM 28 Text - Ideographic Description Characters|date=1999-04-06|first=Bruce|last=Paterson}}
[https://www.unicode.org/L2/L1999/02n3312.pdf L2/99-120]}}title=Text for FPDAM ballot of ISO/IEC 10646, Amd. 28 - Ideographic description characters|date=1999-04-07}}
[https://www.unicode.org/L2/L1999-UTC/u1999-014.htm UTC/1999-014]}}title=Recursion depth limit for IDC's|date=1999-06-01|first=John|last=Jenkins}}
[https://www.unicode.org/L2/L1999-UTC/u1999-015.htm UTC/1999-015]}}title=Re: Brief note on length of ideograph descriptions|date=1999-06-01|first=Ken|last=Whistler}}
[https://www.unicode.org/L2/L1999-UTC/u1999-020.htm UTC/1999-020]}}title=Diagram and language [for Ideograph Description Sequences]|date=1999-06-04|first=John|last=Jenkins}}
[https://www.unicode.org/L2/L1999/99176.htm L2/99-176R]}}title=Minutes from the joint UTC/L2 meeting in Seattle, June 8-10, 1999|date=1999-11-04|first=Lisa|last=Moore|section=Recursion Limit for Ideographic Description Characters}}
[https://www.unicode.org/L2/L1999/N2003.pdf L2/99-232]}} [https://www.unicode.org/wg2/docs/n2003.pdf N2003] title=Minutes of WG 2 meeting 36, Fukuoka, Japan, 1999-03-09--15|date=1999-08-03|first=V. S.|last=Umamaheswaran|section=6.1.2 PDAM28 - Ideographic Description Characters}}
[https://www.unicode.org/L2/L1999/02n3347.pdf L2/99-253]}} [https://www.unicode.org/wg2/docs/n2067.pdf N2067] title=Summary of Voting on SC 2 N 3312, ISO 10646-1/FPDAM 28 - Ideographic description characters|date=1999-08-19}}
[https://www.unicode.org/L2/L1999/99301-02n3362.htm L2/99-301]}} [https://www.unicode.org/wg2/docs/n2123.htm N2123] title=Disposition of Comments Report on SC 2 N 3312, ISO/IEC 10646-1/FPDAM 28, AMENDMENT 28: Ideographic description characters|date=1999-09-20}}
[https://www.unicode.org/L2/L1999/99302-02n3363.pdf L2/99-302]}} N2124 title=Revised Text for FDAM ballot of ISO/IEC 10646-1/FDAM 28, AMENDMENT 28: Ideographic description characters|date=1999-09-24|first=Bruce|last=Paterson}}
[https://www.unicode.org/L2/L2000/00010-n2103.pdf L2/00-010]}} [https://www.unicode.org/wg2/docs/n2103.pdf N2103] title=Minutes of WG 2 meeting 37, Copenhagen, Denmark: 1999-09-13--16|date=2000-01-05|first=V. S.|last=Umamaheswaran|section=6.4.3}}
[https://www.unicode.org/L2/L2000/00045-02n3406.pdf L2/00-045]}}title=Summary of FDAM voting: ISO 10646 Amd. 28: Ideographic description characters|date=2000-01-31}}
[https://www.unicode.org/L2/L2002/02221-cdp-idc.pdf L2/02-221]}} [https://www.unicode.org/wg2/docs/n2480.pdf N2480] title=Proposal to add Ideographic Description Characters (IDC) to the UCS|date=2002-05-18|first=Richard|last=Cook}}
[https://www.unicode.org/L2/L2002/02436-n2534-irg955.pdf L2/02-436]}} [https://www.unicode.org/wg2/docs/n2534.pdf N2534] N955 title=IRG Radical Classification|date=2002-11-21}}
[https://www.unicode.org/L2/L2012/12087-ids.html L2/12-087]}}title=Proposed Changes to ISO/IEC 10646 Annex I, Ideographic Description Characters|date=2012-02-09}}
[https://www.unicode.org/L2/L2015/15065-ids-links.pdf L2/15-065]}}title=Proposal to Add IDS Links to Online Unihan Database|date=2015-02-02|first=John|last=Jenkins}}
[https://www.unicode.org/L2/L2015/15070-ids.html L2/15-070]}}title=IDS in Unihan|date=2015-02-03|first=Mark|last=Davis|authorlink=Mark Davis (Unicode)}}
[https://www.unicode.org/L2/L2015/15313-irg-n2117-ids.pdf L2/15-313]}}title=Request for IDS Data|date=2015-11-03|first=Ken|last=Lunde|authorlink=Ken Lunde}}
1. ^{{cite web|url=https://www.unicode.org|title=Unicode character database|work=The Unicode Standard|accessdate=2016-07-09}}
2. ^{{cite web|url=https://www.unicode.org/versions/enumeratedversions.html|title=Enumerated Versions of The Unicode Standard|work=The Unicode Standard|accessdate=2016-07-09}}
3. ^IDS are described in [https://www.unicode.org/versions/Unicode9.0.0/ch18.pdf#page=23 chapter 18.2 of the Unicode Standard 9.0] on pages 689 through 692.

Ideographic Description Sequences

IDS := Ideographic | Radical | CJK_Stroke | Private Use | U+FF1F | IDS_BinaryOperator IDS IDS | IDS_TrinaryOperator IDS IDS IDS

CJK_Stroke := U+31C0 | U+31C1 | ... | U+31E3

IDS_BinaryOperator := U+2FF0 | U+2FF1 | U+2FF4 | U+2FF5 | U+2FF6 | U+2FF7 | U+2FF8 | U+2FF9 | U+2FFA | U+2FFB

IDS_TrinaryOperator:= U+2FF2 | U+2FF3

See also

  • Chinese character description languages

References

{{reflist}}{{CJK ideographs in Unicode}}

1 : Unicode blocks

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