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Karl,
At 06:17 PM 3/31/2005, you wrote:
This isn't legal, but not for the reason you think. In XSLT 1.0, a match pattern can't contain a variable reference.
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 $external_xml_source, you'll be fine:
Your XSLT processor has enough information here to do the right thing -- and keys are specified to work this way.
This is a FAQ.
Re: [xsl] Keys off of variable xml source
Subject: Re: [xsl] Keys off of variable xml source From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx> Date: Thu, 31 Mar 2005 18:27:53 -0500 |
Karl,
At 06:17 PM 3/31/2005, you wrote:
Is it legal to create a key off of an xml source stored as a variable? So the key decleration might look like:
<xsl:key name="myKey" match="$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 ======================================================================
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