New to list, question about cross doc references in xpath

[aaron miller <aaronstevenmiller@gmail.com>]

Hi everyone,

I'm new to the list, so forgive me if this has been discussed. The
question that led me here is: Does Xpath (or anything) provide a way
to reference nodes across documents, in situations where documents are
part of a package?

My goal is to be able to construct xpointer fragments that will
properly resolve across docs in OPF.

Example:

id(string(//opf:spine[0]/@toc))

gets me the element whose @src references another document, and in
that document, I need to step further:

//ncx:navPoint[0]/content[0]

and from that node, I need to step into the document referred to in
the @src (of the content el)

and so on...


Thanks
Aaron