[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Keys off of variable xml source

Subject: Re: Keys off of variable xml source
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Thu, 31 Mar 2005 18:27:53 -0500
keys off of
Karl,

At 06:17 PM 3/31/2005, you wrote:
Is it legal to create a key off of an xml source stored as a variable?
So the key decleration might look like:

<xsl:key name="myKey" match="$external_xml_source//data" use="some_element"/>

This isn't legal, but not for the reason you think. In XSLT 1.0, a match pattern can't contain a variable reference.


If not, is there a workaround?

None is needed, really. If you declare the key normally


<xsl:key name="myKey" match="data" use="some_element"/>

and then be sure that when you call it, the context is inside $external_xml_source, you'll be fine:

<xsl:variable name="var" select="[anything you need to capture context]"/>
<xsl:for-each select="$external_xml_source">
  ... inside here the key will retrieve nodes from $external_xml_source,
      and $var still refers to whatever you need from outside it ...
</xsl:for-each>

Your XSLT processor has enough information here to do the right thing -- and keys are specified to work this way.

This is a FAQ.

Cheers,
Wendell


====================================================================== 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 ======================================================================

Current Thread

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.