examples/org.eclipse.compare.examples/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>

<plugin>

     <extension
         point="org.eclipse.compare.contentMergeViewers">
      <viewer
            extensions="kvtxt"
            class="org.eclipse.compare.examples.structurecreator.TextMergeViewerCreator"
            id="org.eclipse.compare.examples.TextMergeViewerCreator">
      </viewer>
   </extension>
   
   <extension
         point="org.eclipse.compare.structureCreators">
      <structureCreator
            extensions="kv"
            class="org.eclipse.compare.examples.structurecreator.KeyValuePairStructureCreator"
            id="org.eclipse.compare.examples.KeyValuePairStructureCreator">
      </structureCreator>
   </extension>

</plugin>