    <?xml encoding="US-ASCII"?>
    <?eclipse version="3.2"?>

    <!ELEMENT plugin (extension-point*, extension*)>

    <!ELEMENT fragment (extension-point*, extension*)>

    <!ELEMENT extension-point EMPTY>
    <!ATTLIST extension-point
     name                CDATA #REQUIRED
     id                  CDATA #REQUIRED
     schema              CDATA #IMPLIED
    >

    <!ELEMENT extension ANY>
    <!ATTLIST extension
     point               CDATA #REQUIRED
     name                CDATA #IMPLIED
     id                  CDATA #IMPLIED
    >

Older versions of the plug-in DTD can be found here:

- Version 3.0