W3C home > Mailing lists > Public > whatwg@whatwg.org > February 2008

[whatwg] textContent and bidi

From: Ian Hickson <ian@hixie.ch>
Date: Wed, 13 Feb 2008 01:46:36 +0000 (UTC)
Message-ID: <Pine.LNX.4.62.0802130141530.20115@hixie.dreamhostps.com>
On Fri, 1 Dec 2006, fantasai wrote:
> 
> BTW, for 'dir', I think the inheritance behavior should be a little more 
> clearly specified:
> 
> # If the attribute is omitted or has another value, then the directionality
> # is unchanged.
> 
> Unchanged from what?

This changed a while ago to say "same as its parent".


> You should specify that the initial value (i.e. what <html> gets in the 
> absence of any other declarations) is ltr.

Done.


> You should also somehow make a reference (either directly or indirectly) 
> to UAX 9. Your text doesn't anywhere specify what "directionality" 
> means. The closest we get is an example referencing CSS2.1's sample 
> style sheet. Saying only that the processing layer is responsible for 
> handling the 'dir' attribute not only doesn't give enough information 
> about what is expected, it also doesn't normatively require use of the 
> Unicode bidi algorithm rather than some other bidi algorithm. (Other 
> bidi algorithms do exist.)

It's not clear to me what would need to be defined. Is there some reason 
that a UA couldn't use another bidi algorithm?


> # For example, CSS 2.1 defines a mapping from this attribute to the CSS 
> # 'direction' and 'unicode-bidi' properties
> 
> s/defines/suggests/
>
> The sample style sheet is informative. The only normative text about 
> handling 'dir' in CSS2.1 is a sentence that says bidi behavior in HTML 
> is defined by the HTML 4 specification.

It does define the mapping, whether its normative or not.

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Tuesday, 12 February 2008 17:46:36 UTC

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