[HarfBuzz] Question about shaping with top to bottom direction

[aronsoyol]

Thank you very much, I got your explain for Harfbuzz,
So, according to CJK punctuations and numbser as well as other punctuations
in Latin has the same script code USCRIPT_COMMON in ICU, What is the best
way to classify them?

2015-07-16 17:25 GMT+09:00 aronsoyol <aronsoyol at gmail.com>:

> Thank you very much, I got your explain for Harfbuzz,
> So, according to CJK punctuations and numbser as well as other
> punctuations in Latin has the same script code USCRIPT_COMMON in ICU, What
> is the best way to classify them?
>
> 2015-07-16 16:41 GMT+09:00 Simon Cozens <simon at simon-cozens.org>:
>
>> On 16/07/2015 16:21, aronsoyol wrote:
>> > When shaping it with top to bottom direction and paint it. As you
>> > see the orientation of number "2015"'s glyph is not expected. they
>> > should be rotated 90 degrees
>>
>> Actually I would expect exactly what you got, although it would look
>> better if you had used the Japanese full-width numberic glyphs (２０１５).
>>
>> There are multiple ways to arrange Latin text within Japanese vertical
>> texts; rotating the glyphs is one way, another way is to use fixed-width
>> full-width characters in horizontal orientation, and tate-chu-yoko is
>> another one. See http://www.w3.org/TR/jlreq/#fig1_19-en
>>
>> Because there are multiple ways to do this, Harfbuzz isn't going to
>> choose between them for you. You have to do that. And Japanese fonts
>> generally don't contain rotated forms of Latin glyphs, whereas
>> Harfbuzz's job is just to go from Unicode text to the glyphs that are in
>> your font, so it can't really help you in this case. If you want to
>> rotate the Latin text, you need to do it yourself.
>>
>> Simon
>>
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>>
>
>
>
> --
> Aron
>



-- 
Aron
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