[Standards] XEP examples containing CDATA

[Ben Langfeld]

I'm in the process of preparing a proto-XEP, and need to give examples
containing CDATA like so:

<example caption="Controlling party requests a new output
component"><![CDATA[
<iq from='jul...@capulet.lit/balcony'
    to='9f00...@call.shakespeare.lit'
    type='set'
    id='j9d3j'>
  <output xmlns='urn:xmpp:rayo:output:1'
          voice='allison'>
    <document content-type="application/ssml+xml">
      <![CDATA[
      <?xml version="1.0"?>
      <!DOCTYPE speak PUBLIC "-//W3C//DTD SYNTHESIS 1.0//EN"
                        "http://www.w3.org/TR/speech-synthesis/synthesis.dtd
">
      <speak version="1.0"
             xmlns="http://www.w3.org/2001/10/synthesis";
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
             xsi:schemaLocation="http://www.w3.org/2001/10/synthesis
                         http://www.w3.org/TR/speech-synthesis/synthesis.xsd
"
             xml:lang="en-US">
        <p>
          <s>You have 4 new messages.</s>
          <s>The first is from Stephanie Williams and arrived at <break/>
3:45pm.</s>
          <s>
            The subject is <prosody rate="-20%">ski trip</prosody>
          </s>
        </p>
      </speak>
      ]]>
    </document>
  </output>
</iq>
]]></example>

Unfortunately, XML doesn't allow nested CDATA. What's the standard
procedure for handling this case?

Regards,
Ben Langfeld