Re: dir=auto makes no sense for descendant user-visible attributes

See below

On Wed, Feb 29, 2012 at 2:32 PM, Matitiahu Allouche <matial@il.ibm.com>wrote:

>    Hello, Aharon!
>
> We are almost in agreement. You wrote:
> * attribsdir = "auto": the directionality of each of the element's
> attributes must be computed independently from the attribute's value.
> <end of quote>
> I believe that you meant "independently from the element's value".
>

What I meant was that the directionality of each attribute is independent
of the others. I think it's best to simply drop the word "independently".


>
> You wrote:
> * attribsdir not specified:
>     o If the element has dir=auto (explicitly or by default, as is the
> case for the bdi element), or if the element inherits its directionality
> from such an element, then the directionality of each of the element's
> attributes is computed independently from the attribute's value, as for
> attribsdir="auto".
> <end of quote>
> It is the same problem as above. I suggest the following text instead:
> * attribsdir not specified:
>     o If the element has dir=auto (explicitly or by default, as is the
> case for the bdi element), or if the element inherits its directionality
> from such an element, then the directionality of each of the element's
> attributes must be computed as if attribsdir="auto" had been specified.


Good


>
>
> Shalom (Regards),  Mati
>       Bidi Architect
>       Globalization Center Of Competency - Bidirectional Scripts
>       IBM Israel
>       Mobile: +972 52 2554160
>
>
>
>
> From:        "Aharon (Vladimir) Lanin" <aharon@google.com>
> To:        Najib Tounsi <ntounsi@emi.ac.ma>
> Cc:        Matitiahu Allouche/Israel/IBM@IBMIL, "Martin J. Dürst" <
> duerst@it.aoyama.ac.jp>, Ehsan Akhgari <ehsan@mozilla.com>,
> public-i18n-bidi@w3.org
> Date:        29/02/2012 12:47
> Subject:        Re: dir=auto makes no sense for descendant user-visible
> attributes
> ------------------------------
>
>
>
> Thanks, Najib, for summarizing above.
>
> I have come around to Mati's view.
>
> Here is a formulation that works the way Mati wants it but also avoids the
> bdi issue. It also makes use of the concept of element directionality whose
> inheritance (as opposed to the inheritance of the dir attribute) is defined
> in the HTML5 spec (*
> http://dev.w3.org/html5/spec/Overview.html#the-dir-attribute*<http://dev.w3.org/html5/spec/Overview.html#the-dir-attribute>
> ):
>
> A new attribute, attribsdir="ltr|rtl|auto", is proposed which
> would determine the directionality in which an element's attributes (for
> example title, alt and placeholder) must appear when displayed to the user:
>
>  * attribsdir="ltr": the directionality of the element's attributes is
> 'ltr'
>  * attribsdir="rtl": the directionality of the element's attributes is
> 'rtl'
>  * attribsdir = "auto": the directionality of each of the element's
> attributes must be computed independently from the attribute's value. If an
> attribute's value contains a character of bidirectional character type AL
> or R, and there is no character of bidirectional character type L anywhere
> before it in the attribute's value, then the directionality of the
> attribute is 'rtl'. Otherwise, the directionality of the attribute is 'ltr'.
>  * attribsdir not specified:
>     o If the element has dir=auto (explicitly or by default, as is the
> case for the bdi element), or if the element inherits its directionality
> from such an element, then the directionality of each of the element's
> attributes is computed independently from the attribute's value, as for
> attribsdir="auto".
>     o Otherwise, the directionality of the element's attributes is the
> same as the element's directionality.
>
> I intend to file a bug on HTML5 with that wording (after explaining the
> current problems). If anyone sees a problem, please respond ASAP.
>
> Aharon
>