<sect1>
	<title>XML_Parser:example</title>

    <para>
 
 Simple XML processing example.
    </para>
      <formalpara>
        <title>See also</title><para>
        <itemizedlist>
        <listitem><para>XML_Parser</para></listitem>
        </itemizedlist>
      </para></formalpara>
    <para>
Any data needed during processing has to be passed around,
 here we just keep track of the nesting depth.
    </para>
    <para>
Define a subset of XML_Parser_Class which which has callbacks for
 what we want to do. In a real application we might not need
 to define them all.
    </para>
    <para>
Rewriting rules for pulic and system IDs can be
 used to locate local copies etc.
    </para>
    <para>
An individual parser runs over a single source.
    </para>
    <para>
Run the parser.
    </para>
    <para>
Now we define the callbacks.
    </para>
  </sect1>