built-in data type
The attribute-value-declaration
is the abstract type of values that an attribute is declared to
accept. Its concrete instances can be obtained with the following constants:
attribute-declared-cdata
attribute-declared-id
attribute-declared-idref
attribute-declared-idrefs
attribute-declared-name
attribute-declared-names
attribute-declared-nmtoken
attribute-declared-nmtokens
attribute-declared-number
attribute-declared-numbers
attribute-declared-nutoken
attribute-declared-nutokens
and with one operator that takes a string
shelf argument listing all the values allowed for the
attribute:
attribute-declared-group