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Re: FW: New Public Review Issue: UAX #15

From: Mark Davis <mark.davis@icu-project.org>
Date: Mon, 16 Jan 2006 08:02:45 -0800
Message-ID: <43CBC3A5.4030701@icu-project.org>
To: Felix Sasaki <fsasaki@w3.org>
CC: Richard Ishida <ishida@w3.org>, public-i18n-core@w3.org

The corrigendum was passed before 4.1, and incorporated into version 
4.1, so the only new material for 5.0 (the next version) is what is in 
yellow. That being said, the UTC is glad to get feedback on any part of 
the document, new or old.

Mark

Felix Sasaki wrote:

>
> On Mon, 16 Jan 2006 19:07:32 +0900, Richard Ishida <ishida@w3.org> wrote:
>
>>
>> FYI
>
>
> I'm currently having a look at this. The main changes concern 
> versioning,  see section 3  ( 
> http://www.unicode.org/reports/tr15/tr15-26.html#Versioning ).
>
> I don't see an issue in section 3.1 "Stability of Normalized Forms" 
> which  says "A normalized string is guaranteed to be stable: that is, 
> once  normalized, a string is normalized according to all future 
> versions of  Unicode.".
>
> I don't see an issue in section 3.3 "Guaranteeing Process Stability",  
> which describes how corrigenda between versions of Unicode should be  
> handled.
>
> Corrigenda 2 and 3 (changes in normalization behavior of the 
> character  U+FB1D HEBREW LETTER YOD WITH HIRIQ, and U+F951 
> Normalization) are two  example corrigenda which fall under section 3.3.
>
> " Corrigendum #5: Normalization Idempotency fixed a problem in the  
> description of the normalization process for some instances of 
> particular  sequences. Such instances never occur in meaningful 
> text.". As a  background to this corrigendum, there is a public review 
> issue  http://www.unicode.org/review/pr-29.html . It proposes the 
> following  change to definition D2:
>
> "D2. In any character sequence beginning with a starter S, a character 
> C  is blocked from S if and only if there is some character B between 
> S and  C, and either B is a starter or it has the same or higher 
> combining class  as C."
> The change is the insertion of "or higher".
>
> The description of this corrigendum  
> (http://www.unicode.org/versions/corrigendum5.html) mentions that 
> problems  arising from the old definition D2 have no "realistic 
> scenarios [...] that  would present such problems.".
>
> I'm not sure about this corrigendum. I will take a closer look. Let's 
> talk  about it on a call.
>
> Regards, Felix.
>
>>
>> -----Original Message-----
>> From: unicore-bounce@unicode.org [mailto:unicore-bounce@unicode.org] On
>> Behalf Of Rick McGowan
>> Sent: 14 January 2006 01:03
>> To: unicode@unicode.org
>> Subject: New Public Review Issue: UAX #15
>>
>> The Unicode Technical Committee has posted a new issue for public 
>> review  and
>> comment. Details are on the following web page:
>>
>>     http://www.unicode.org/review/
>>
>> Review period for the new item closes on January 31, 2005
>>
>> Please see the page for links to discussion and relevant documents.
>> Briefly, the new issue is:
>>
>>
>> Issue #86: UAX #15: Unicode Normalization Forms
>>
>> There are no substantive changes in this version of UAX #15. 
>> Sections  were
>> added to clarify stability and versioning issues, and to make some
>> formatting changes for Unicode 5.0.
>>
>>     http://www.unicode.org/reports/tr15/tr15-26.html
>>
>>
>> If you have comments for official UTC consideration, please post them by
>> submitting your comments through our feedback & reporting page:
>>
>>     http://www.unicode.org/reporting.html
>>
>> If you wish to discuss issues on the Unicode mail list, then please 
>> use  the
>> following link to subscribe (if necessary). Please be aware that  
>> discussion
>> comments on the Unicode mail list are not automatically recorded as  
>> input to
>> the UTC. You must use the reporting link above to generate comments 
>> for  UTC
>> consideration.
>>
>>     http://www.unicode.org/consortium/distlist.html
>>
>> Regards,
>>     Rick McGowan
>>     Unicode, Inc.
>>
>>
>>
>
>
>
>
>
>
Received on Monday, 16 January 2006 16:03:13 GMT

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