Mixed-content use-cases and questions

[Clark C. Evans]

Yes. More 'fundamental' questions... sorry.

Most of the XML DTD's that I've seen 
are strictly hierarchical.  Questions:

1.  Are there any use cases besides HTML
    for mixed content?

2.  For modular XHTML, could a <xhtml:plain>
    element be included that eliminates 
    the need for mixed-content?

    <p>hello<b>world</b></p>
  
           becomes

    <p><plain>hello</plain>
       <b><plain>world</plain></b>
    </p>


Thanks!

Clark


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