Re: [csswg-drafts] Proposal: cjk-dir: new property for RTL horizontal CJK, as well as for vertical CJK together with RTL(Arabic, Persian, etc.) text (#3608)

As Florian wrote, we did some fairly extensive research on examples of mixed rtl and ttb scripts. I did find one example of Arabic written downwards, but it was very old: newer examples didn't follow this format. Therefore we didn't design any automatic mechanism for such layouts, instead we added a manual one (text-orientation: sideways-left), which is present in older drafts of Writing Modes. It was later removed because of implementation difficulty and lack of strong use cases. If at some point that balance changes, and a UA is willing to implement `sideways-left` for mixed-rotation typesetting, then we can issue another level of Writing Modes with the addition. https://www.w3.org/TR/2014/CR-css-writing-modes-3-20140320/#valuedef-sideways-left

But at this point the focus is on getting UAs to support 'writing-mode: sideways-lr', which is much easier, and last I checked is still only supported in Firefox.

-- 
GitHub Notification of comment by fantasai
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/3608#issuecomment-460432268 using your GitHub account

Received on Monday, 4 February 2019 22:06:33 UTC