<RefEntry id="node-list-first-element">
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<!-- Do not edit this file! -->
<?html-filename node-list-first-element.html>

<RefMeta>
  <RefEntryTitle>node-list-first-element</RefEntryTitle>
  <RefMiscInfo Role="file">dblib.dsl</RefMiscInfo>
</RefMeta>

<RefNameDiv>
  <RefName>node-list-first-element</RefName>
  <RefPurpose>Return the first element node in a node list</RefPurpose>
</RefNameDiv>

<RefSynopsisDiv><Title>Synopsis</Title>
<Synopsis>
(node-list-first-element nodelist)
</Synopsis>
</RefSynopsisDiv>

<RefSect1><Title>Description</Title>

<para>
This function returns the first node in a node list which is
an element (as opposed to a PI or anything else that might appear
in a node list).</para>


</RefSect1>

<RefSect1><Title>Author</Title>

<para>
Norman Walsh, &lt;ndw@nwalsh.com&gt;
</para>
</RefSect1>
<RefSect1><Title>Source Code</Title>

<ProgramListing>
(define (node-list-first-element nodelist)
  ;; Return the first element node in a node list
  (let loop ((nl nodelist))
    (if (node-list-empty? nl)
	(empty-node-list)
	(if (gi (node-list-first nl))
	    (node-list-first nl)
	    (loop (node-list-rest nl))))))
</ProgramListing>
</RefSect1>

</RefEntry>
