Table of contents

Appendices

4.4 Integrating XLink Usage with Other Markup

This specification defines only attributes and attribute values in the XLink namespace. There is no restriction on using non-XLink attributes alongside XLink attributes. In addition, most XLink attributes are optional and the choice of simple or extended link is up to the markup designer or document creator, so a DTD that uses XLink features need not use or declare the entire set of XLink's attributes. Finally, while this specification identifies the minimum constraints on XLink markup, DTDs that use XLink are free to tighten these constraints. The use of XLink does not absolve a valid document from conforming to the constraints expressed in its governing DTD.

Following is an example of a crossReference element with both XLink and non-XLink attributes:

<my:crossReference
  xmlns:my="http://example.com/"
  my:lastEdited="2000-06-10"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xlink:type="simple"
  xlink:href="students.xml">
Current List of Students
</my:crossReference>