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Re: [css-writing-modes] 'direction' vs. vertical text

From: Koji Ishii <kojiishi@gmail.com>
Date: Thu, 10 Sep 2015 14:35:30 +0900
To: www-style@w3.org
Message-Id: <E312EADD-C2D4-4FA3-8E6B-A4BA0AA2AC22@gmail.com>
> Simon Sapin <simon.sapin@exyr.org> wrote:
> The spec sounds a lot like like they do: 
> http://dev.w3.org/csswg/css-writing-modes/#direction
> > This property specifies the inline base direction or directionality
> > of any bidi paragraph, embedding, isolate, or override established by
> > the box.
> Although it’s not cross linked (shouldn’t it?), "inline base direction" is the same term as in 
> http://dev.w3.org/csswg/css-writing-modes/#inline-base-direction
> > The direction property specifies the inline base direction of a box
> Am I missing something?
> > If I turn the text upside down with transforms, LTR goes from right
> > to left. You're not confused about that, right? :)
> Of course, you can move things any way with transforms, but you know that’s not what I’m talking about :)
> For layout purpose "up" is where 'margin-top' is, whichever direction that is after transforms.
> > Keep reading, there's a nice diagram right below.
> > http://dev.w3.org/csswg/css-writing-modes/#line-directions
> I don’t find the answer to my question (how are 'direction' and the inline base direction defined in a vertical writing mode) in this section.
> > And a table if you want it all laid out for you:
> > http://dev.w3.org/csswg/css-writing-modes/#logical-to-physical
> I do here, indirectly, but it seems to imply that the text-orientation property also affects the inline base direction, which was not mentioned in http://dev.w3.org/csswg/css-writing-modes/#inline-base-direction
> Also, this table seems to be missing some columns for the 'sideways' and 'use-glyph-orientation' values of 'text-orientation’.
> Finally, this table is said to "summarize". Should there be normative text that this is the summary of?

Added the cross link and tried to clarify[1], please let me know if this doesn’t look to explain well enough yet.

[1] https://github.com/w3c/csswg-drafts/commit/2eeb7593a95b149beff8fcbeca62277c47d27ba1

Received on Thursday, 10 September 2015 05:36:07 UTC

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