xs:ENTITIES
The xs:ENTITIES
type indicates that the value is a
whitespace-separated list of XML 1.0 unparsed entity names
declared in the instance document's DTD. This is the same as the
DTD ENTITIES attribute
type.
Constraining facets that apply to xs:ENTITIES are length, minLength, maxLength, enumeration, pattern, and whiteSpace. The length, minLength, and maxLength facets all refer to the number
of entity names in the list.