[XSL-LIST Mailing List Archive Home]
[Reply To This Message]
Re: build a select clause or dynamic URI's
Subject: Re: build a select clause or dynamic URI's|
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Wed, 10 Nov 2004 12:34:59 -0500
At 07:50 PM 11/9/2004, Andy wrote:
David M Petersen swiftly responded
this knowledge I have my doubts that its going to be all that helpful
to you as it doesnt seem that you want to reference the actual
correct - I want to reference elsewhere in the current source document
which is not apparently possible. (Not being able to refer to the document
makes vague sense - I suspect it is possible for it to be an infoset not
actually a physical document, not the same as referring to "other" documents.)
The only real chance you have of being able to do any sort of pseudo
dynamic XPath expression is if, for example, there is only one ancestor
gml:position for any given element.
there is in this case but I'm trying to solve some common patterns.
Oh well, enough ambition for the budget I have on this project, a generic
solution to XSLT processing of schema-driven, ref-all-over-the-place
documents will have to wait :-(
It *is* ambitious, since XSLT engines aren't built to do this (as M.D. says).
Much of the reason this is an obscure requirement (or has been for the most
part) is that the conventional way of expressing cross-references in XML
has been to label target elements with unique identifiers, and then refer
to those. XSLT gives the id() and key() functions to make this really easy.
Some XSLT processors, such as Saxon, provide an "eval()" function or
equivalent to get around this limitation in XSLT. This is way better (since
the engine already has to evaluate XPaths, just not dynamically) than
trying to implement XPath in XSLT itself.
Wendell Piez mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc. http://www.mulberrytech.com
17 West Jefferson Street Direct Phone: 301/315-9635
Suite 207 Phone: 301/315-9631
Rockville, MD 20850 Fax: 301/315-8285
Mulberry Technologies: A Consultancy Specializing in SGML and XML
PURCHASE STYLUS STUDIO ONLINE TODAY!
Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!
Download The World's Best XML IDE!
Accelerate XML development with our award-winning XML IDE - Download a free trial today!
Subscribe in XML format