Why doesn't Ideographic (ID) in UAX#14 have half-width katakana?

[Koji Ishii]

Right, this should be applied to only where currently AL.

The basic idea is that, full width is a concept to use a character in an
"imported" manner and thus different characteristics are applied, while
half width is a concept of saving screen real estate and/or for legacy
cultural usages so the characteristics should be the same as its full width
counterpart, except the width.

Roozbeh, thank you for the date, I'll work by then.

/koji

On Thu, Aug 20, 2015 at 1:45 AM, Ken Whistler <kenwhistler at att.net> wrote:

> I don't think that is the issue. U+FF9E/F are already lb=NS, which prevents
> line breaks before. The issue is instead loosening up the lb class for
> the halfwidth katakana syllables (from lb=AL to lb=ID), so that they *can*
> break the way the regular katakana syllables do.
>
> --Ken
>
>
> On 8/19/2015 9:21 AM, fantasai wrote:
>
>> On 05/04/2015 02:19 PM, Peter Edberg wrote:
>>
>>> I have been checking with various groups at Apple. The consensus here is
>>> that we would like to see the linebreak value for
>>> halfwidth katakana changed to ID.
>>>
>>
>> Do we want all halfwidth kana changed to ID, or should there
>> be some exception for the voicing marks (U+FF9E, U+FF9F) to
>> forbid breaks before?
>>
>> ~fantasai
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://unicode.org/pipermail/unicode/attachments/20150820/5e78ba08/attachment.html>