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File: Data.xml
<?xml version="1.0" encoding="UTF-8"?>
<eu>
<member>
<state>Austria</state>
<state founding="yes">Belgium</state>
</member>
<candidate>
<state>Bulgaria</state>
<state>Cyprus</state>
<state>Turkey</state>
</candidate>
</eu>
File: Transform.xslt
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes" />
<xsl:template match="eu">
<xsl:apply-templates select="member" />
</xsl:template>
<xsl:template match="member">
<eu-members>
<xsl:apply-templates select="state[@founding]" />
</eu-members>
</xsl:template>
<xsl:template match="state">
<xsl:copy>
<xsl:apply-templates />
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
Output:
<?xml version="1.0" encoding="UTF-8"?>
<eu-members>
<state>Belgium</state>
</eu-members>
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