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   RE: [xml-dev] Validating XML documents containing xml:*

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> I have some XML schemas that do not declare the XML: 
> attributes (lang, base, id). If an instance uses one or more 
> of these attributes must it fail validation against the 
> schema, or can I use these attributes without declaring them 
> in my schemas?

The attributes aren't treated specially by the schema processor: they are
allowed only if they are declared (explicitly, or using wildcards).

The only attributes that are treated specially are the xsi: attributes, for
example xsi:type. (And namespace declarations, but those don't count as

Michael Kay


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