Will the next version of XML Schema have a schema-for-schemas that is st
Hi Folks, The current version of the XML Schemas specification contains a schema-for-schemas. The schema-for-schemas is expressed using the XML Schema language. But there are some things that the schema-for-schema cannot express using the XML Schema language. For example, it cannot express this rule: if an element declaration has a type attribute, it cannot have a complexType or simpleType child element. This is an example of a co-constraint, which the current XML Schema specification does not support. Consequently, for things like the above co-constraint the schema-for-schemas resorts to comments containing English prose. As I understand it, the next version of XML Schemas will provide a way to express co-constraints. So, in the next version of XML Schemas will the schema-for-schemas be expressible entirely using the XML Schema language? /Roger
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