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    copied!<p><strong>This transformation</strong>:</p> <pre><code>&lt;xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" &gt; &lt;xsl:output omit-xml-declaration="yes" indent="yes"/&gt; &lt;xsl:strip-space elements="*"/&gt; &lt;xsl:param name="ptopElementName" select="'RootElement'"/&gt; &lt;xsl:variable name="vTop" select= "/*/xs:element[@name=$ptopElementName]"/&gt; &lt;xsl:variable name="vNames" select="$vTop/descendant-or-self::*/@name"/&gt; &lt;xsl:variable name="vRefs" select="$vTop/descendant-or-self::*/@ref"/&gt; &lt;xsl:variable name="vTypes" select="$vTop/descendant-or-self::*/@type"/&gt; &lt;xsl:template match="node()|@*" name="identity"&gt; &lt;xsl:copy&gt; &lt;xsl:apply-templates select="node()|@*"/&gt; &lt;/xsl:copy&gt; &lt;/xsl:template&gt; &lt;xsl:template match="xs:element"&gt; &lt;xsl:if test= "@name=$vNames or @name=$vRefs or ancestor-or-self::*[@name=$ptopElementName]"&gt; &lt;xsl:call-template name="identity"/&gt; &lt;/xsl:if&gt; &lt;/xsl:template&gt; &lt;xsl:template match="xs:complexType|xs:simpleType"&gt; &lt;xsl:if test= "@name=$vTypes or ancestor-or-self::*[@name=$ptopElementName]"&gt; &lt;xsl:call-template name="identity"/&gt; &lt;/xsl:if&gt; &lt;/xsl:template&gt; &lt;/xsl:stylesheet&gt; </code></pre> <p><strong>when applied on the provided XML document:</strong></p> <pre><code>&lt;xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified"&gt; &lt;xs:element name="RootElement"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element ref="ChildElement"/&gt; &lt;/xs:sequence&gt; &lt;/xs:complexType&gt;&lt;/xs:element&gt; &lt;xs:element name="ChildElement"/&gt; &lt;xs:element name="UnusedElement"/&gt; &lt;/xs:schema&gt; </code></pre> <p><strong>produces the wanted, corect result:</strong></p> <pre><code>&lt;xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified"&gt; &lt;xs:element name="RootElement"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element ref="ChildElement"/&gt; &lt;/xs:sequence&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:element name="ChildElement"/&gt; &lt;/xs:schema&gt; </code></pre>
 

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