- From: 張俊芝 via GitHub <sysbot+gh@w3.org>
- Date: Mon, 04 Feb 2019 08:40:51 +0000
- To: public-css-archive@w3.org
> Unclear how this is a CJK-specific issue. > > The figures in the original post seem to be about whether RTL scripts take a TTB inline progression in vertical lines. A rather typical use case is how RTL/TTB scripts (such as historical scripts Sogdian and Old Uyghur) can be rendered properly. > > This is about how to override the default bidi behavior (as today’s common implementations of vertical writing simply rotate a whole horizontal line without changing the bidi behavior) with a unified direction for inline progression. Thank you for the reply. It's really about RTL/LTR, **in CSS**. "writing-mode: vertical-*" combined with "direction: ltr" creates TTB inline progression, while "writing-mode: vertical-*" combined with "direction: rtl" creates BTT inline progression. It means in vertical mode in CSS, left is "mapped" to top, and right "mapped" to bottom. "cjk-dir" changes the left to the right mapping in vertical mode. -- GitHub Notification of comment by Zhang-Junzhi Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/3608#issuecomment-460168182 using your GitHub account
Received on Monday, 4 February 2019 08:40:53 UTC