Good Afternoon Everyone, I have a large schema file [0]. I wish to grab a subset of the <xs:element>'s within the XSD and print them to a significantly smaller and more manageable/relevant output file. In particular I wish to grab every occurrence of an <xs:element> where the substitutionGroup value is equal to "ifc:IfcBuildingElement" I've been using the following xsl code and it is not working. <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xd="http://www.oxygenxml.com/ns/doc/xsl" xmlns:ifc="http://www.iai-tech.org/ifcXML/IFC2x3/FINAL" exclude-result-prefixes="xs xd" version="2.0"> <xsl:output method="xml" omit-xml-declaration="yes" indent="yes"/> <xsl:strip-space elements="*"/> <xsl:template name="main" match="/"> <xsl:for-each select="xs:schema/xs:element"> <xsl:if test="@substitutionGroup[contains(text(), ifc:IfcBuildingElement)]"> <xsl:value-of select="xs:schema/xs:element"/> </xsl:if> </xsl:for-each> </xsl:template> </xsl:stylesheet> It would be great if someone could point out to me either the incorrect syntax or the absence of the correct configuration. Kind Regards Lewis [0] http://www.buildingsmart-tech.org/ifcXML/IFC2x3/FINAL/IFC2X3.xsd Glasgow Caledonian University is a registered Scottish charity, number SC021474 Winner: Times Higher Education’s Widening Participation Initiative of the Year 2009 and Herald Society’s Education Initiative of the Year 2009. http://www.gcu.ac.uk/newsevents/news/bycategory/theuniversity/1/name,6219,en... Winner: Times Higher Education’s Outstanding Support for Early Career Researchers of the Year 2010, GCU as a lead with Universities Scotland partners. http://www.gcu.ac.uk/newsevents/news/bycategory/theuniversity/1/name,15691,e...