Re: @xml:base with @rendition (and maybe other pointers)

One thought is to introduce a tei.localref datatype that would be 
defined as an XML name prepended with a '#'. That could help in cases 
where one would like to create (by means of Schematron[1]) an analogy to 
the IDREF mechanism. And since the type wouldn't be defined as an URI, 
xml:base expansion wouldn't apply to it.

[1] Maybe the Schematron check should even be an internal part of the 
definition of that datatype, to force document() -- except I am not so 
sure how "document()" would behave in such cases. I'd love to be 
enlightened.

Musing aloud,
   Piotr

On 05/02/17 14:46, John P. McCaskey wrote:
> @rendition has datatype teidata.pointer. Pointers can point to locations
> either within the current document or elsewhere. They should be expanded
> with any @xml:base attributes up the XML tree.
>
> But @rendition is supposed to point to an element in the tagsDecl
> element, normally within the same document, though presumably it could
> be the tagsDecl in some other document.
>
> My question: Is it really the case that a rendition pointer should honor
> parent @xml:base attributes?
>
> I guess the theoretical answer is yes, but I can imagine cases where the
> @xml:base attributes are primarily for setting image paths, .xml
> directories, and http addresses, and the coder does not really intend
> the @rendition attributes to point externally.
>
> Thoughts?
>
> John
>