[ http://issues.apache.org/jira/browse/XERCESC-1220?page=all ]
Alberto Massari resolved XERCESC-1220:
--------------------------------------
Resolution: Invalid
Xerces allows "1" as a value for the "nillable" attribute in an XML Schema
definition, because "nillable" is defined as a xs:boolean attribute.
But xsi:nil is used in an XML instance, and the specs define this attribute as:
"2.6.2 xsi:nil
XML Schema: Structures introduces a mechanism for signaling that an element
should be accepted as valid when it has no content despite a content type which
does not require or even necessarily allow empty content. An element may be
valid without content if it has the attribute xsi:nil with the value true. "
So the only allowed value for xsi:nil is the string "true"
Alberto
> Unrecognized attribute value for xsi:nil='1'
> --------------------------------------------
>
> Key: XERCESC-1220
> URL: http://issues.apache.org/jira/browse/XERCESC-1220
> Project: Xerces-C++
> Type: Bug
> Components: Validating Parser (Schema) (Xerces 1.5 or up only)
> Versions: 2.1.0, 2.2.0, 2.3.0, 2.4.0, 2.5.0
> Environment: All systems
> Reporter: Matthias Jung
> Priority: Minor
> Attachments: patchfile.txt
>
> Within XML elements the xsi:nil attribute is only handled as logiacal true if
> its value is 'true'. Otherwise it is set to its default value: false.
> XML Schema Spec also defines '1' to be a valid value to express logical true.
> Here a simple example
> XML instance:
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <ns:A xmlns:ns="xxx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
> <B xsi:nil="1"/>
> </ns:A>
> Schema definition:
> <xsd:schema targetNamespace="xxx" xmlns:tns="xxx"
> xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
> <xsd:complexType name="B">
> <xsd:sequence>
> <xsd:element name="b1" type="xsd:string"/>
> </xsd:sequence>
> </xsd:complexType>
> <xsd:complexType name="A">
> <xsd:sequence>
> <xsd:element name="B" type="tns:B" nillable="true"/>
> </xsd:sequence>
> </xsd:complexType>
> <xsd:element name="A" type="tns:A"/>
> </xsd:schema>
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