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XML Schema keys: attributeFormDefault, attributeThe target namespace is null here. The attribute "attributeFormDefault" does not play any role here.
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Valid document <root xsi:noNamespaceSchemaLocation="correct_0.xsd" xx="1" xmlns="" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" /> Invalid document <root xsi:noNamespaceSchemaLocation="correct_0.xsd" f:xx="1" xmlns="" xmlns:f="http://foo" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" /> |
Correct XML Schema (correct_0.xsd) <xsd:schema attributeFormDefault="qualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:foo="http://foo" > <xsd:element name="root"> <xsd:complexType> <xsd:attribute name="xx" type="xsd:string" use="required"/> </xsd:complexType> </xsd:element> </xsd:schema> |
When the form is "unqualified" (this is the default), the attributes must be from the null namespace. The attribute "attributeFormDefault" does not play any role here.
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Valid document <root xsi:noNamespaceSchemaLocation="correct_0.xsd" xx="1" xmlns="" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" /> Invalid document <root xsi:noNamespaceSchemaLocation="correct_0.xsd" f:xx="1" xmlns="" xmlns:f="http://foo" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" /> |
Correct XML Schema (correct_0.xsd) <xsd:schema attributeFormDefault="unqualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:foo="http://foo" > <xsd:element name="root"> <xsd:complexType> <xsd:attribute name="xx" type="xsd:string" use="required"/> </xsd:complexType> </xsd:element> </xsd:schema> |
We can set the namespace using the "ns" attribute, but if we want the attributes to be from some non-null namespace, we must explicitly put the "ns" attribute either to the "attribute/name" element or to the "attribute[@name]" element.
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Valid document <root xx="1" xmlns=""/> Invalid document <root f:xx="1" xmlns="" xmlns:f="http://foo" /> |
Correct Relax NG schema (correctRelax_0.rng) |