XSL cross-reference

cross-reference, xml, xslt

Solution

Try

<xsl:stylesheet
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  version="2.0">

<xsl:output indent="yes"/>
<xsl:strip-space elements="*"/>

<xsl:key name="el-by-idref" match="Elements/Element" use="@idref"/>

<xsl:template match="XML">
  <xsl:copy>
    <xsl:apply-templates select="Model/packedElement"/>
  </xsl:copy>
</xsl:template>

<xsl:template match="Model/packedElement">
  <content comment="{key('el-by-idref', @id)/Attributes/@comment}" id="{@id}" test="{@id}"/>
</xsl:template>



</xsl:stylesheet>

that way you get

<XML>
   <content comment="comment 1." id="1" test="1"/>
   <content comment="comment 2." id="2" test="2"/>
   <content comment="comment 3." id="3" test="3"/>
</XML>

Problem

I'm learning XSL right now and have a question regarding cross-references. My target XML file is structured like this: ``` <XML> <Model> <packedElement typ="class" id="1"/> <packedElement typ="class" id="2"/> <packedElement typ="class" id="3"/> </Model> <Elements> <Element idref="1"> <Attributes comment="comment 1."/> </Element> <Element idref="2"> <Attributes comment="comment 2."/> </Element> <Element idref="3"> <Attributes comment="comment 3."/> </Element> </Elements> </XML> ``` I want to connect id=idref. My goal is to list all packedElements and print their comment. Can u guys help me? I tried to resolve it with the key-funktion, but I wasn't very succesful. Edit: ``` <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:fn="http://www.w3.org/2005/xpath-functions"> <xsl:output method="xml" encoding="UTF-8"/> <xsl:key name="CommentK" match="Element" use="@idref"/> <xsl:template match="XML"> <XML> <xsl:apply-templates/> </XML> </xsl:template> <xsl:template name="Start" match="packedElement"> <xsl:variable name="TEST" select="@id"/> <xsl:variable name="Comment"> <xsl:call-template name="FindComment"> <xsl:with-param name="test2" select="@id"/> </xsl:call-template> </xsl:variable> <content comment="{$Comment}" id ="{@id}" test="{$TEST}"></content> </xsl:template> <xsl:template name="FindComment"> <xsl:param name="test2"/> <xsl:for-each select="key('CommentK', '$test2')"> <xsl:value-of select="Attributes/@comment"/> </xsl:for-each> </xsl:template> </xsl:stylesheet> ``` XSLT version is 2.0. (Btw can someone tell me the difference between the .XSLT and .XSL?)

Original source