[relax-ng-comment] interleave vs mixed

[Michael Leditschke <mike@ammd.com.au>]

I would appreciate some clarification on
the difference between interleave and mixed.
I've read the section in the tutorial but 
remain confused.

If I have a model thus,

<interleave>
  <zeroOrMore>
    <element name="A"><text/></element>
  </zeroOrMore>
  <zeroOrMore>
    <element name="B"><text/></element>
  </zeroOrMore>
  <zeroOrMore>
    <element name="C"><text/></element>
  </zeroOrMore>
</interleave>

I seem to be able to have arbitrary numbers of
<A>, <B> and <C> elements in any order, e.g. 

<C>c</C><A>a</A><B>b</B><A>a</A><C>c</C><C>c</C>

i.e. an interleaving of the sequences

<A>a</A><A>a</A>
<B>b</B>
<C>c</C><C>c</C><C>c</C>

If I change the keyword to mixed, (which adds a
<text/> element to the interleave) it doesn't quite
give me the result I'd expect, which, in the case 
above, would be the same as

<zeroOrMore>
  <choice>
    <text/>
    <element name="A"><text/></element>
    <element name="B"><text/></element>
    <element name="C"><text/></element>
    <choice>
</zeroOrMore>

Is the text regarded as a single "token" when it
comes to interleaving, or can zero or more characters
within the string constitute a token?

Is interleave primarily meant for element only 
content models?

If I use mixed, where can the text go in the example
above? 

If I want control over occurrence frequecies (0, 1, >1)
of elements but want to allow text interspersed 
between these elements, how do I achieve this in RELAXNG?

Regards
Michael



--
Michael Leditschke
AMMD Professional Services Pty Ltd
+61 407 671 480

"The question of whether computers can think is 
like the question of whether submarines can swim"
 
                    --Edsger W. Dijkstra,         
                      deceased 6 August 2002