I am creating an xml schema, and I want to make sure that the values in all the elements are CDATA elements.
Is there a way to force this using XML-schema?
As I recall XML Schema works on the XML Infoset, meaning with the XML document after it is parsed, entities are resolved, whitespace is normalised and CDATA is processed. CDATA is a way of easing the textual serialization not a part of the structural model. So: No. Neither in DTDs or RELAX NG.
来源：https://stackoverflow.com/questions/392770/force-use-of-cdata-in-xml-schema