[xsl] Converting a node tree to a textual representation

["Houghton,Andrew" <houghtoa@xxxxxxxx>]

I'm using XSL 2.0 to create a CSV text file.  One of the columns needs to be a
textual representation of a portion of the source document.  The source
document looks something like:

<doc>
  <lvl>
    <rec>
      <sect1/>
      <sect2/>
      <sect3/>
    </rec>
    <rec>
      <sect1/>
      <sect2/>
      <sect3/>
    </rec>
    <rec>
      <sect1/>
      <sect2/>
      <sect3/>
    </rec>
  </lvl>
</doc>

The CSV is suppose to look something like:

col1value,col2value,<rec><sect1/><sect2/><sect3/></rec>
col1value,col2value,<rec><sect1/><sect2/><sect3/></rec>
col1value,col2value,<rec><sect1/><sect2/><sect3/></rec>

The last column contains the textual representation of each of the <rec> nodes
in the source document.  Building the CSV structure is simple, but I haven't
quite figured out an easy way to convert the <rec> nodes in the tree to their
textual representation.  So I have some XSL that looks like:

<xsl:for-each select="rec">
  <xsl:variable name="col1" as="xsd:string" select="string('col1value')"/>
  <xsl:variable name="col2" as="xsd:string" select="string('col2value')"/>
  <xsl:variable name="col3" as="element()"  select="."/>
  <xsl:value-of select="concat($col1,$col2,$col3,'&#10;')"/>
</xsl:for-each>

Obviously, that variable for col3 doesn't make it happen.  Does anyone know of
an easy way to do this without writing a recursive template that goes through
the entire <rec> node set, which happens to have quite a bit of structure
depth under each sect* elements?

BTW, I do realize that the column values will need to be properly quoted and
escaped, but that is an issue I have already solved and left out of the XSL to
simplify the explanation of the problem.


Thanks, Andy.