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XML Schema keys: anyThe root element named "root" can have an arbitrary number of any elements from any namespace.
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Valid document <root xsi:noNamespaceSchemaLocation="correct_0.xsd" xmlns="" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" /> Valid document <root xsi:noNamespaceSchemaLocation="correct_0.xsd" xmlns="" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" > <a/> </root> Valid document <root xsi:noNamespaceSchemaLocation="correct_0.xsd" xmlns="" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" > <a/> <x:b xmlns:x="http://foo" /> </root> |
Correct XML Schema (correct_0.xsd) <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" > <xsd:element name="root"> <xsd:complexType> <xsd:sequence minOccurs="1" maxOccurs="1"> <xsd:any namespace="##any" minOccurs="0" maxOccurs="unbounded" processContents="skip"/> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:schema> |
The element "anyName" says that the elements can have any name from any namespace. If we want to allow an arbitrary number of such attributes, we need to use the "zeroOrMore" element
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Valid document <root xmlns=""/> Valid document <root xmlns=""> <a/> </root> Valid document <root xmlns=""> <a/> <x:b xmlns:x="http://foo" /> </root> |
Correct Relax NG schema (correctRelax_0.rng) |