Subject: Re: [xsl] Using XSLT's key() function while context in secondary document? From: Michael Ludwig <mlu@xxxxxxxxxxxxx> Date: Tue, 19 Feb 2008 12:48:13 +0100 |
Is there a way to direct the key() function back to the principal document while the context node is located in another document?
In XSLT 2.0, use the third argument of key() to tell it which document to search. In 1.0, you need to change context to that document, which you can do using xsl:for-each.
Michael Kay
Thanks a lot! So the solution involving the documents given in my original post goes like this:
<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:variable name="principal-doc" select="/"/> <xsl:key name="chnam" match="Chnl" use="@ID"/> <xsl:template match="/"> <Urmel> <xsl:for-each select="document('s.xml')//Channel"> <xsl:variable name="cur" select="."/> <xsl:for-each select="$principal-doc"><!-- change context --> <p><xsl:value-of select="key('chnam', $cur)"/> this works</p> </xsl:for-each> <p><xsl:value-of select="key('chnam', $cur)"/>this doesn't</p> </xsl:for-each> </Urmel> </xsl:template> </xsl:stylesheet>
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