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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Identifier attribute (was: Re: Creating Hie
 <?xml version="1.0"?> <mytree> <node> <name>Root of my tree</name> <level>0</level> </node> <node> <name>Child of root</name> <level>1</level> </node> <node> <name>Another child of root</name> <level>1</level> </node> <node> <name>Grandchild of root</name> <level>2</level> </node> <node> <name>Yet another child of root</name> <level>1</level> </node> </mytree> My fisrt transform is: <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"> <xsl:output method="xml" indent="yes"/> <xsl:template match="/"> <xsl:call-template name="next-level"> <xsl:with-param name="level" select="0"/> <xsl:with-param name="nodes" select="//node"/> </xsl:call-template> </xsl:template> <xsl:template name="next-level"> <xsl:param name="level"/> <xsl:param name="nodes"/> <xsl:if test="$nodes/level[.=$level]"> <!-- then group the nodes at this level --> <xsl:for-each-group select="$nodes" group-starting-with="node[level[.=$level]]"> <!-- act on the first of each group only, passing others to next level --> <newnode id=""> <xsl:copy-of select="name"/> <!-- group at the next level assuming monotonically increasing level --> <xsl:call-template name="next-level"> <xsl:with-param name="level" select="$level + 1"/> <xsl:with-param name="nodes" select="current-group()[position()>1]"/> </xsl:call-template> </newnode> </xsl:for-each-group> </xsl:if> </xsl:template> </xsl:stylesheet> Which produces:
<?xml version="1.0" encoding="UTF-8"?>
<newnode id="">
<name>Root of my tree</name>
<newnode id="">
<name>Child of root</name>
</newnode>
<newnode id="">
<name>Another child of root</name>
<newnode id="">
<name>Grandchild of root</name>
</newnode>
</newnode>
<newnode id="">
<name>Yet another child of root</name>
</newnode>
</newnode>My second transform is: <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <xsl:output method="xml" indent="yes"/> <xsl:template match="*[@id]"> <xsl:copy> <xsl:attribute name="id"> <xsl:number level="any" count="*[@id]"/> </xsl:attribute> <xsl:apply-templates/> </xsl:copy> </xsl:template> <xsl:template match="@*|node()"> <xsl:copy> <xsl:apply-templates select="@*|node()"/> </xsl:copy> </xsl:template> </xsl:stylesheet> Which when run on the intermediate result produces:
<?xml version="1.0" encoding="UTF-8"?>
<newnode id="1">
<name>Root of my tree</name>
<newnode id="2">
<name>Child of root</name>
</newnode>
<newnode id="3">
<name>Another child of root</name>
<newnode id="4">
<name>Grandchild of root</name>
</newnode>
</newnode>
<newnode id="5">
<name>Yet another child of root</name>
</newnode>
</newnode>This is the correct result. How do I combine these two transforms into a single stylesheet using the two-pass approach? I can't get this to work... Many thanks - Rowan 
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