Cart
[Home] [By Thread] [By Date] [Recent Entries]
On Wed, Aug 05, 2009 at 08:46:18AM +0100, Dave Pawson wrote: > On 08/05/2009 07:29 AM, Liam Quin wrote: [...] > >Some differences -- > >* I want people to be able to write a "namespace definition" > > that would let them combine namespaces... > > > >* I don't think it's a good idea to hard-wire any namespaces, > > but I'm OK with an application-specific default namespace > > definition file that can be overridden by an author. > > > Are you going to expand on these two please Liam? Sorry for being gnomic and rushed in my note... > Define combine? > Hard wire as in 'define the ns association in the instance'? > How else might it be done? In the schema? > Do you mean 'author' or XML application? I proposed here (and in somewhat modified form for Balisage next week) the idea of a miniature schema, a namespace definition file, that (1) identifies elements that introduce a new default namespace, and (2) can refer to other namespace definition files. I would use a single attribute to refer to a namespace definition file on my top-level element in my instance, or at any other subtree. "I" here is document author, although an application (such as a Web browser) could have a default namespace dfeinition file. In this way, I can for example define XHTML such that a math element (say) automatically implies the MathML namespace, an svg element similarly; and I can handle the fact that hred in SVG is in the xlink namespace. But I can also make my own namespace, and arrange that elements within it are automatically assigned to other namespaces as needed, without extra markup in the document. I suppose the modern way to describe this would be "unobtrusive namespaces" :-) So that's the sense in which I could combine namespaces. A disadvantage is that I did not have a good way for explicitly disambiguating by adding prefixes. Liam -- Liam Quin, W3C XML Activity Lead, http://www.w3.org/People/Quin/ http://www.holoweb.net/~liam/ * http://www.fromoldbooks.org/
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] |
