On 8/21/2022 10:24 AM, 黄复雄 via ntg-context wrote:
> Currently, the ruby module does not seem to support cjk fonts? I have
> a preliminary implementation of furigana(pinyin in Chinese) as:
Actually a few years ago I added some basic new features for doing 
vertical scripts effciently but (as often with these things) there was 
not that much follow up because no one seems to need / use it (or be 
triggered by the fact that it can be used).

The attached files show two methods ... manual work as well as semi 
automatic (one needs to patch one font file for some recent optimizations).

As you can see, rubies work ok. Now, before trying to improve this, it 
makes more sense to think about what kind of vertical support is 
actually needed becaus in order for that to work ok it really has to 
work with other mechanism as well and there is only so much that tex can 
do.

Hans

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