Subject: [xsl] Recursive definition of XML Element From: "Ma, Yanrui" <YMa@xxxxxxxxxxx> Date: Wed, 10 Oct 2001 19:33:58 -0400 |
Is recursive definition of XML elements allowed? I have a need for a recursive xml element like this: <Node process="T"> <Node process="S"> <Node process="C1"> <Node process="C2"> <Node process="P1"/> <Node process="P2"/> <Node process="P3"/> </Node> <Node process="C3"> <Node process="P4"/> <Node process="P5"/> <Node process="P6"/> </Node> </Node> </Node> <Node process="Y1"/> </Node> My corresponding schema file (.xsd) is like: <xs:complexType name="NodeType"> <xs:sequence minOccurs="0" maxOccurs="unbounded"> <xs:choice> <xs:element name="Node" type="NodeType"/> <xs:element name="NodeRef"> <xs:complexType> <xs:attribute name="name" type="xs:string" use="optional"/> <xs:attribute name="node" type="xs:string" use="required"/> </xs:complexType> </xs:element> <xs:element name="Cluster"> <xs:complexType> <xs:sequence maxOccurs="unbounded"> <xs:element name="Node" type="NodeType"/> </xs:sequence> <xs:attribute name="name" type="xs:string" use="required"/> </xs:complexType> </xs:element> </xs:choice> </xs:sequence> <xs:attribute name="name" type="xs:string"/> <xs:attribute name="process" type="xs:string"/> </xs:complexType> The xml file itself can be parsed, but when parsed together with xsd validation(using xerces/xalan), the following error happens: "The attribute 'process' is already used in element 'Node'." Any idea? Is the above XML valid, or is this a bug/defect of Apache parser? If the XML is invalid, could you suggest an alternative? Thanks, Yanrui XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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