Is there either:

A freely available program that can convert the output of a Cisco's "show conf" to some sensible XML, like this (probably not very sensible) block form:

```
<aaa>
  <new-model/>
  <authentication>
    <login>
      <default>
        <group id="tacacs+">enable</group>
      </defult>
    </login>

    <!-- ...etc... -->

  </authentication>
</aaa>

```

...or, if not, at an XML schema that I could look to implement? Without a deep understanding of the IOS syntax, building up the schema is proving to be tricky.