--On Wednesday, November 14, 2007 04:28:09 PM +0530 Raghu Narayan
Koratagere wrote:
I have specific business requirement where I need to transform the
source tree bottom up. The reason being certain attribute of the
parent node gets its value from a similarly caluclated child node. i.e
I need to calculate a derived attribute of a child node before I can
calculate the parent node's attribtue.
Is such a requirement be addressed using XSL? If yes any pointers will
be very helpful.
Is this the sort of thing you mean? Note that this is an XSLT2 transform:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="2.0">
<xsl:output indent="yes"/>
<xsl:template match="node()">
<xsl:variable name="children" as="node()*">
<xsl:apply-templates/>
</xsl:variable>
<xsl:copy>
<xsl:sequence select="@*"/>
<xsl:sequence select="($children/@a)[1]"/>
<xsl:sequence select="$children"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
with input
<?xml version="1.0" encoding="UTF-8"?>
<x>
<y>
<z a="1" b="1"/>
</y>
<y>
<z a="2" c="2"/>
</y>
</x>
gives output
<?xml version="1.0" encoding="UTF-8"?>
<x a="1">
<y a="1">
<z a="1" b="1"/>
</y>
<y a="2">
<z a="2" c="2"/>
</y>
</x>
--
Owen Rees; speaking personally, and not on behalf of HP.
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