CJK GP Coordination Review CDNC/CGP Shanghai Meeting

Kenny Huang, Ph.D. 黃勝雄博士 Member, CDNC / CGP Member, Board of Directors, TWNIC huangksh@gmail.com 2014.May

Unified LGR for The Root Zone

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Integration Panel

X Generation Panel

Z Generation Panel

Unified LGR for the Root Zone

Merge

Y Generation Panel

CJK GP Proposal@ICANN48

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Integration Panel

C (Chinese) Generation Panel

J (Japanese) Generation Panel

K (Korean) Generation Panel

CJK Generation Panel

Highlights Transparency : open process Accountability : commitment & responsibility

ICANN/IP Proposal

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Integration Panel

C (Chinese) Generation Panel

J (Japanese) Generation Panel

K (Korean) Generation Panel

CJK Coordination Committee Highlights

Flexibility Invisible to the community Undetermined tasks and responsibility

Status Quo : Ad Hoc Model

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Integration Panel

C (Chinese) Generation Panel

J (Japanese) Generation Panel

K (Korean) Generation Panel

Non-institutionalized Process

Variants Disposition Scenario

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(Asmus Freytag, 2014.03.14)

CGP Current Tasks

• defines which labels – are permissible for Traditional/Simplified Chinese scripts – have variants labels – work is almost done through reuse of CDNC tables / IANA

IDN repository

• assigns dispositions for variant labels – dispositions:

• allocate • block

– using new XML format for LGR – dispositions can be done via CDNC practices

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Computation for Generating Variant Labels

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Function Combination(Str) F <= first codepoint of Str SStr <= Substring of Str, without the first code point NSC <= {} If SStr is empty then for each V in (Variants of code point F) NSC = NSC set-union (the string with the code point V) End of Loop Else SubCom = Combination(SStr) For each V in (Variants of code point F) For each SC in SubCom NSC = NSC set-union (the string with the first code point V followed by the string SC) End of Loop End of Loop Endif Return NSC RFC3743

Housekeeping Code for Converting XML Label Generation Rules

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while (!feof($file_handle)) { $line = fgets($file_handle); $arr=explode(";",$line); echo "&ltchar cp=\"".$arr[0]."\"&gt<br>"; echo "&ltvar cp=\"".$arr[1]."\" disp=\"t-preferred\" /&gt<br>"; if(count($arr)>2){ $var=$arr[2]; if(strstr($var,",U")) { $var2=explode(",U",$var); $v2size=count($var2); echo "&ltvar cp=\"".$var2[0]."\" disp=\"block\" /&gt<br>"; for($i=1;$i<$v2size;$i++){ echo "&ltvar cp=\"U".$var2[$i]."\" disp=\"block\" /&gt<br>"; } }else echo "&ltvar cp=\"".$var."\" disp=\"block\" /&gt<br>"; } echo "&lt/char&gt<br><br>"; }

<char cp="U+3473(0)"> <var cp="U+3473(0)" disp="t-preferred" /> <var cp="U+3447(1,3) " disp="block" /> </char> <char cp="U+4337(0)"> <var cp="U+7D2C(1,3,9)" disp="t-preferred" /> <var cp="U+7D2C(1,3,9)" disp="block" /> <var cp="U+7EF8(1,3,4)" disp="block" /> <var cp="U+7DA2(1,3,4,8,9) " disp="block" /> </char> <char cp="U+43AC(0)"> <var cp="U+43B1(1,3)" disp="t-preferred" /> <var cp="U+43B1(1,3) " disp="block" /> </char>

IANA IDN Repository t-preferred variant labels with block disposition

Overlap Chinese, Japanese, Korean

• Integrated Root Zone LGR – single definition of variant – per-script disposition of variants

• Variants may be allocatable in one script, blocked in another

• LGR Mandatory – Chinese, Japanese, Korean Generation Panels need to

coordinate on definition of variants – CGP, JGP, KGP proposals must not conflict

• CJK overlap rules – Is RFC3743 good enough to manage CJK overlap ? – If not, what components are missing? – create rules on the fly or go back to IETF

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11 《中日韓共同常用八百漢字表》

Case for CJK Overlap

Language

language preferred variants; variants dispositions

SC u8001;u8002 block (rule1)

TC u8001;u8002 block (rule1)

JP u8001; none (rule2)

KR

老 U8001

Integrate ?

Integrated Root Zone Label Generation Rules

Rejected

Generation Panel

F

T

Potential Conflict Strategies

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ID Strategy Pros Cons Rank 1 Adopt X

Abandon Rcjk

Permit X No label rule

2 Adopt X Intersection ∩ (Rcjk)

Permit X Permit ∩(variants/disp)

Rules changed (without CJK conflict)

3 Adopt X Union ∪(Rcjk)

Permit X Permit ∪(variants/disp)

Rules changed with CJK conflict

4 Abandon X and Rcjk No conflict Label not available

CJK overlap

C: rule Rc J : rule Rj K: rule Rk

Solve the Problem

• CJK coordination – Inconsistent commitment – Conflict strategies discussion – ICANN intervention / facilitation?

• Implement CGP plan as scheduled – Cross the bridge when coming to it ?

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