Re: [css-ruby] spanning of ruby annotations across excess bases

I'm not seeing any objections here, but maybe the weekend e-mail fell
through the cracks? If there really are no objections, we'll proceed with
implementation as proposed earlier and file the spec bug.

Thanks,

--Jet

On Sun, Nov 9, 2014 at 3:58 PM, Xidorn Quan <quanxunzhen@gmail.com> wrote:

> On Sun, Nov 9, 2014 at 9:25 AM, Xidorn Quan <quanxunzhen@gmail.com> wrote:
>
>>
>> On Sun, Nov 9, 2014 at 5:42 AM, L. David Baron <dbaron@dbaron.org> wrote:
>>
>>> http://dev.w3.org/csswg/css-ruby/#base-annotation-pairing says:
>>>   # If there are not enough ruby annotations in a ruby annotation
>>>   # container, the last one is paired with (spans across) any excess
>>>   # ruby bases. (If there are not any in the ruby annotation
>>>   # container, an anonymous empty one is assumed to exist.)
>>>
>>> Is there actually a use case for this behavior, or is it really just
>>> defining error handling?
>>>
>>
>> I guess they have, for example, an English word spans several kanji along
>> with their kana. Or a multi-kanji word with two different pronunciation,
>> one for kun'yomi, the other for on'yomi.
>>
>> I ask because I think it adds substantial extra complexity,
>>> especially around line-breaking of ruby.  If there isn't a good use
>>> case for it, I would prefer if ruby annotation containers that do
>>> not have enough annotations simply not provide annotations for the
>>> final bases, instead of having their final annotation span all the
>>> remaining bases.
>>
>>
>> I want to add that, the spanning rule here not only increases the
>> complexity on line-breaking, but also make it difficult to define space
>> distribution behavior for alignment. You can see issue 9 in the current
>> draft.
>>
>
> In addition to the issues mentioned above, I suspect that it would also
> affect 'ruby-position: inter-character', which does not support any
> spanning when the directions are orthogonal.
>
> - Xidorn
>