property value clarification

The specification is not clear on whether attributes of a property name
element are considered to be part of its value. Specifically, take this
example:

<?xml version="1.0"?>
<propertyupdate>
  <set>
    <prop>
      <prop1 attr="value">
        contents
      </prop1>
      <prop2 attr="value"/>
    </prop>
  </set>
</propertyupdate>

Is the above legal? What is the expected result from a PROPFIND?

The examples (and text) for PROPFIND/PROPPATCH do not cover attributes
at all. I presume they are legal for markup *within* a <prop1>..</prop1>
element, but I haven't found anything discussing attributes on the
<prop1> element itself.

thx,
-g

--
Greg Stein (gstein@lyra.org)