Return type: Switch
Returns:       True if the attribute is of the type specified, otherwise false.

Syntax

attribute attribute-name element-qualifier*
   (is | isnt) (cdata | name | names | number | numbers 
                | nmtoken | nmtokens | id | idref | idrefs 
                | notation | entity | entities | group)
    

You can use the attribute is test to determine whether an attribute is of a specified type. For example, the following code will succeed if attribute foo is of type name, and will fail otherwise:

  attribute "foo" is name
          

Attribute type tests can be combined by joining the types with | and parenthesizing them. Note that for a data attribute, a test of its type for id, idref, idrefs, notation, entity, or entities will always fail because those types of attributes cannot be associated with a notation.

Entity and notation attribute tests can be applied directly to attribute values which are declared as entity or notation, or directly to an item of an attribute declared as entities.

Related Syntax attribute

Related Concepts Attribute tests on items of the "attributes" shelf Attributes: type tests

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