[alreq] Vertical Arabic

ntounsi has just created a new issue for https://github.com/w3c/alreq:

== Vertical Arabic ==
(Following issue https://github.com/w3c/i18n-drafts/issues/81)

Independently from body text that run normally vertically (e.g. CJK, Mongolian), small Arabic text can be set vertically, e.g. on a book spine or in table header. 

Although the flow direction may depend on writing style, countries or what ever, it might be desirable to have text read from top to bottom

Example-1) Vertical Arabic text running from top to bottom, and Latin from bottom to top (book spine).

`writing-mode: sideways-lr;` appear appropriate for this case. Implemented only in Firefox.
(BTW:  sideways value "[is at-risk and may be dropped](https://www.w3.org/TR/css-writing-modes-3/#valdef-writing-mode-sideways-rl)" from CSS3!

Example-2) Vertical Arabic, letters upright (isolated form)




`text-orientation : upright; ` is doing this.

In Firefox, Arabic run from top to bottom (in parallel to Latin, by the way!..)
In Safari and Chrome Arabic run from bottom to top. 

Please view or discuss this issue at https://github.com/w3c/alreq/issues/102 using your GitHub account

Received on Monday, 13 March 2017 22:14:21 UTC