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https://issues.apache.org/jira/browse/XERCESC-1591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anton Nikolaevsky updated XERCESC-1591:
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Attachment: TraverseSchema.cpp.diff
Patch to
xerces/c/branches/xerces-2.7/src/xercesc/validators/schema/TraverseSchema.cpp,
revision 540668
> Mishandling of recursive definition on complex content restriction
> ------------------------------------------------------------------
>
> Key: XERCESC-1591
> URL: https://issues.apache.org/jira/browse/XERCESC-1591
> Project: Xerces-C++
> Issue Type: Bug
> Components: Validating Parser (Schema) (Xerces 1.5 or up only)
> Affects Versions: 2.6.0
> Environment: Windows XP
> Reporter: Andrew Fang
> Attachments: TraverseSchema.cpp.diff
>
>
> When trying to the following schema in Xerces 2.6, it complains that the base
> type of CV does not have any attribute defined (Line: 34 Column: 31
> Base type definition does not have any attributes). Apparently, we see
> attribute defined in CE (the base type of CV).
> The problem seems to be caused by element "qualifier" in complexType "CD".
> The element "qualifier" has type of CR which contains an element of type CV
> which is a derivative of CE, which in turns is the derivative of CD. Xerces
> trys to resolve CE before attributes in CD is processed and thus the error.
> Although the syntax looks wierd, it is from a govenment stanadard and we
> have no position of changing that.
> A workaround is to move definition of CR ahead of CD. However, since the
> position of element definition in Schema should have no effect on validation,
> we think Xerces should report no error as it is.
> <?xml version="1.0" encoding="UTF-8"?>
> <xsd:schema targetNamespace="urn:hl7-org:v3"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns="urn:hl7-org:v3"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema";
> elementFormDefault="qualified">
> <xsd:complexType name="ANY" abstract="true"></xsd:complexType>
> <xsd:complexType name="CD">
> <xsd:complexContent>
> <xsd:extension base="ANY">
> <xsd:sequence>
> <xsd:element name="qualifier" type="CR"
> minOccurs="0"
> maxOccurs="unbounded"/>
> </xsd:sequence>
> <xsd:attribute name="code" use="optional"/>
> </xsd:extension>
> </xsd:complexContent>
> </xsd:complexType>
> <xsd:complexType name="CE">
> <xsd:complexContent>
> <xsd:restriction base="CD">
> <xsd:sequence>
> </xsd:sequence>
> <xsd:attribute name="code" use="optional"/>
> </xsd:restriction>
> </xsd:complexContent>
> </xsd:complexType>
> <xsd:complexType name="CV">
> <xsd:complexContent>
> <xsd:restriction base="CE">
> <xsd:sequence>
> </xsd:sequence>
> <xsd:attribute name="code" use="optional"/>
> </xsd:restriction>
> </xsd:complexContent>
> </xsd:complexType>
> <xsd:complexType name="CR">
> <xsd:complexContent>
> <xsd:extension base="ANY">
> <xsd:sequence>
> <xsd:element name="name" type="CV"
> minOccurs="0"
> maxOccurs="1"/>
> </xsd:sequence>
> <xsd:attribute name="inverted" use="optional"
> default="false"/>
> </xsd:extension>
> </xsd:complexContent>
> </xsd:complexType>
> <xsd:element name="root" type="CV" />
> </xsd:schema>
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