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Re: Changing the prefix of a default attribute (Attr.specified false)

From: Martijn Pieters <mj@digicool.com>
Date: Wed, 14 Mar 2001 11:06:52 +0100
To: Joseph Kesselman <keshlam@us.ibm.com>
Cc: www-dom@w3.org
Message-ID: <20010314110652.G25669@zopatista.com>
On Tue, Feb 20, 2001 at 09:25:31AM -0500, Joseph Kesselman wrote:
> 
> >Changing the value of a default attribute (Attr.specified = false) will
> >change it to a specified attribute,
> 
> Good point; I think we completely missed that.
> 
> My reading is that this depends on whether the default came from a DTD or a
> namespace-aware schema language.
> 
> If it came from a DTD, the default is bound to the specific QName.
> Therefore, changing the prefix should be roughly equivalent to removing the
> existing attribute and instantiating a new one with the new name... and
> there should be two results. The first is that this Attr object should now
> be considered Specified.  The other is that the default should be
> reasserted under the original QName.
> 
> If it came from a namespace-aware source (which, please note, we are still
> in the process of defining), the prefix is irrelevant to the document
> structure (it's just a serialization hint) and changing it does not need to
> have any effect on whether it's considered the default. However, it's fair
> to say that  changing the prefix implies that you intend a specific
> serialization, so I think it's reasonable to say that explicitly setting
> the prefix does make the Attr become Specified. Note, however, that here
> the specified Attr overlays the default rather than appearing alongside it,
> since it really is the same conceptual value as far as the schema is
> concerned.
> 
> This is personal opinon, subject to confirmation or rejection by the rest
> of the DOM committee.

Has there been any progress on this issue? It has been 3 weeks since this
was brought up.

-- 
Martijn Pieters
| Software Engineer  mailto:mj@digicool.com
| Digital Creations  http://www.digicool.com/
| Creators of Zope   http://www.zope.org/
---------------------------------------------
Received on Wednesday, 14 March 2001 05:07:42 GMT

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