Examples: Key definitions for variable text
In the following example, a "product-name" key is defined. The key definition contains a child <keyword> element nested within a <keydef>element.
<map>
  <keydef keys="product-name">
    <topicmeta>
     <keywords>
       <keyword>Thing-O-Matic</keyword>
     </keywords>
    </topicmeta>
  </keydef>
</map>A topic can reference the "product-name" key by using the following markup:
<topic id="topicid"> <p><keyword keyref="product-name"/> is a product designed to ...</p> </topic>
When processed, the output contains the text "Thing-O-Matic is a product designed to ... ".
In the following example, the key definition contains both a reference to a resource and variable text.
<map>
  <keydef keys="product-name" href="thing-o-matic.dita">
    <topicmeta>
     <keywords>
       <keyword>Thing-O-Matic</keyword>
     </keywords>
    </topicmeta>
  </keydef>
</map>When processed using the key reference from the first example, the output contains
            the
            "Thing-O-Matic is a product designed to ... " text. The phrase "Thing-O-Matic" also
            is a link
            to the thing-o-matic.dita topic.