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Re: [csswg-drafts] [css-writing-modes-3] Propose to replace "'text-orientation: upright' to cause strong LTR" with author notes how to do it

From: Koji Ishii via GitHub <sysbot+gh@w3.org>
Date: Thu, 08 Dec 2016 03:15:32 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-265642164-1481166931-sysbot+gh@w3.org>
Thank you for your comment @jfkthame. Last night we talked, @fantasai 
and @frivoal were strong to keep the current text, so we resolved to 
add the note, but defer the decision whether this is SHOULD or MUST.

Before adding your new point to agenda, it'd be great if @fantasai and
 @frivoal can comment here, as it'll save our conf time I guess.

> I think it's pretty clear that treating all the characters as strong
 LTR (so that upright Hebrew letters appear top-to-bottom, for 
example)

I agree upright Hebrew appear top-to-bottom, but less sure about how. 
Complex cases are like:

```html
<div class=U><span dir=rtl>ABC</span></div>
```
The "ABC" is still strong LTR, correct?

```html
<div class=U>
  ABC
  <span class=R>DEF</span>
  GHI
  <span class=R>JKL</span>
  MNO
</div>
```
The "DEF" and "JKL" are LTR so reordering occurs, as "`ABC LKJ GHI FED
 MNO`", correct?

```html
<div class=R>
  ARABIC TEXT HAS
  <span class=U>SYMBOL1</span>
  AND
  <span class=U>SYMBOL2</span>
  IN A PARAGRAPH.
</div>
```
The two symbols are strong LTR so reordering occurs, making "SYMBOL2" 
visually earlier than "SYMBOL1", correct?

I don't understand many parts of UBA yet but these look magical enough
 to think explicit control is better than automatic for authors.

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Received on Thursday, 8 December 2016 03:15:39 UTC

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