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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: How to check an element's type against an XSD sim
 Michael Kay wrote: I think what you can do is not to validate the input XML but to import a schema and then you can write checks using e.g. foo castable as someType to filter out valid or invalid items. So with AltovaXML, when I process the input <BookStore xmlns="http://www.books.org">
<Book>
<Title>My Life and Times</Title>
<Author>Paul McCartney</Author>
<Date>1998</Date>
<ISBN>xxx1-56592-235-2</ISBN>
<Publisher>McMillan Publishing</Publisher>
</Book>
<Book>
<Title>Killing Time</Title>
<ISBN>1-12345-123-1</ISBN>
</Book>
</BookStore>with the XSLT <xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:bk="http://www.books.org"
exclude-result-prefixes="bk"
version="2.0"><xsl:output method="xml"/> <xsl:import-schema namespace="http://www.books.org"
schema-location="test2013071602.xsd"/><xsl:template match="/"> <BookISBNs> <xsl:for-each select="/bk:BookStore/bk:Book[bk:ISBN castable as bk:ISBN-type]"> <ISBN><xsl:value-of select="bk:ISBN"/></ISBN> </xsl:for-each> </BookISBNs> </xsl:template> </xsl:transform> where the schema is <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.books.org"
xmlns="http://www.books.org"
elementFormDefault="qualified"><xsd:element name="BookStore"> <xsd:complexType> <xsd:sequence> <xsd:element ref="Book" minOccurs="0" maxOccurs="unbounded"/> </xsd:sequence> </xsd:complexType> </xsd:element> <xsd:element name="Book">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="Title"/>
<xsd:element ref="Author"/>
<xsd:element ref="Date"/>
<xsd:element ref="ISBN"/>
<xsd:element ref="Publisher"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element> <xsd:element name="Title" type="xsd:string"/>
<xsd:element name="Author" type="xsd:string"/>
<xsd:element name="Date" type="xsd:string"/>
<xsd:element name="ISBN" type="ISBN-type"/>
<xsd:element name="Publisher" type="xsd:string"/><xsd:simpleType name="ISBN-type"> <xsd:restriction base="xsd:string"> <xsd:pattern value="\d{1}-\d{5}-\d{3}-\d{1}|\d{1}-\d{3}-\d{5}-\d{1}|\d{1}-\d{2}-\d{6}-\d{1}"/> </xsd:restriction>
</xsd:simpleType></xsd:schema> then I get the result <BookISBNs><ISBN>1-12345-123-1</ISBN></BookISBNs> So that way you can do some type checking against the schema type although the XML input you process is not being validated as a complete document. 
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