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Document Description and Processing in Scheme
Mirroring of XHTML (4) - More of the same...

Lists of contents and lists of attributes are processed recursively and spliced together with their context

(body
    (let ((attributes (list 'start "3"))
          (contents   (map li (list "one" "two" "three"))))
       (ol 'id "demo" contents attributes)
    )
  )
 )
)

Passing of attribute lists and lists of textual contents. 

<body>
  <ol id="demo" start="3">
    <li>one</li> 
    <li>two</li> 
    <li>three</li>
  </ol>
</body>

The XHTML counterpart.