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Re: [1.2T-LC] Lack of BIDI 'direction' (ISSUE-2058)

From: Doug Schepers <schepers@w3.org>
Date: Wed, 17 Sep 2008 18:13:51 -0400
Message-ID: <48D1811F.2010309@w3.org>
To: fantasai <fantasai.lists@inkedblade.net>
CC: www-style@w3.org, public-i18n-core@w3.org, www-svg <www-svg@w3.org>

Hi, fantasai-

Thanks for your comment.

We'll discuss this in the SVG WG, and get back to you soon.

Regards-
-Doug Schepers, on behalf of the SVG WG

fantasai wrote (on 9/17/08 1:51 PM):
> 
> There's discussion in http://www.w3.org/TR/SVGMobile12/text.html about
> bidirectional text, but there is no definition for a 'direction' property
> that I can find, nor any mention of any substitute for it (such as a 'dir'
> attribute).
> 
> This is a problem because the Unicode bidirectional algorithm needs a
> base direction for each "paragraph" that it operates on. For plain text
> it guesses based on the first character in the text, but this is not
> always accurate. Applying this rule to SVG Tiny would be incompatible
> with an implementation that supported SVG Tiny plus the 'direction'
> property because 'direction' defaults to 'ltr', not to 'guess a direction'.
> 
> The lack of a 'direction' affects both bidi reordering and other properties
> like 'text-align', whose values' behavior depends on 'direction'.
> 
> I therefore strongly recommend that SVG Tiny include the 'direction'
> property.
> 
> ~fantasai
> 
Received on Wednesday, 17 September 2008 22:14:25 GMT

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