Accumulated Feedback on PRI #423

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Date/Time: Thu Dec 31 17:50:56 CST 2020
Name: asmus
Report Type: Error Report
Opt Subject: UAX#39 wording issues

In Table 1 of UAX#39 there are obfuscatory and possibly incorrect uses of
“explicit”.  In the definition of “Limited_Use” the text

	and no explicit script from Table 5, Recommended Scripts.

Should be changed to 

	and no script from Table 5, Recommended Scripts, other than “Common” or
	“Inherited”.

That way, the reader does not have to hunt for the definition of “explicit”
script in UAX#24. Because “explicit” is not capitalized, it cannot be
understood by the reader as a defined term, so anyone not familiar with
UAX#24, will not even understand that it means anything different than
“explicitly listed in Table 5”. Also, if it is desired to make it a defined
term, it should be given an actual (numbered) definition in UAX#24, not
simply a gloss.

Likewise for Excluded the language:

	and no explicit script from Table 7, Limited Use Scripts or Table 5,
	Recommended Scripts.

should be changed to

	and no script from Table 7, Limited Use Scripts or Table 5, Recommended
	Scripts, other than “Common” or “Inherited”.

In the definition of Recommended, the text

	containing an explicit script in Table 5, Recommended Scripts in [UAX31],
	except for those characters that are Restricted above.

appears to rule out the ASCII digits or indeed combining marks as part of
identifiers (script=Common or inherited). Here the remedy would simply be to
drop the word “explicit”.

While making the change, there is an inconsistency between the phrasing of
the description of Limited_Use and Recommended.  

Compare:

	Characters from scripts that are in limited use: with Script_Extensions
	values containing a script in Table 7, Limited Use Scripts in [UAX31], and
	no explicit script from Table 5, Recommended Scripts.

to

	Characters with Script_Extensions values containing an explicit script in
	Table 5, Recommended Scripts in [UAX31], except for those characters that
	are Restricted above.

It would make the intent clearer if the description echoed the rationale for
making a script recommended. As follows:

	Characters from scripts that are in everyday common use: with
	Script_Extensions values containing a script in Table 5, Recommended
	Scripts in [UAX31], except for those characters that are Restricted above.



Feedback above this line was reviewed before or during UTC #166


Date/Time: Sun May 23 12:29:13 CDT 2021
Name: asmus
Report Type: Public Review Issue
Opt Subject: PRI 423: Incorrect Identifier Type for Khmer


The Identifier_Type values for certain Khmer characters appear questionable 
in light of their support for domain names in the DNS Root Zone.

U+17CB 	់ 	Khmer 	KHMER SIGN BANTOC
U+17CC 	៌ 	Khmer 	KHMER SIGN ROBAT 
U+17CD 	៍ 	Khmer 	KHMER SIGN TOANDAKHIAT
U+17D0 	័ 	Khmer 	KHMER SIGN SAMYOK SANNYA

See: Root Zone Label Generation Rules for the Khmer Script (und-Khmr) 
on icann.org and documents cited therein

Proposal for Khmer Script Root Zone LGR, 15 August 2016,
https://www.icann.org/en/system/files/files/proposal-khmer-lgr-15aug16-en.pdf

The document referenced for inclusion of these characters cites the following 
source, which seems to strongly contradict a "technical use" classification

[204] 	PRIMARY SCHOOL GRADE 1, MOEYS, ISBN 9-789-995-001-674, Publication 2015, Figure 2


These are also supported in ICANN's Reference LGR for the Second Level.

https://www.icann.org/sites/default/files/packages/lgr/lgr-second-level-khmer-script-15dec20-en.html