[xsl] xsl 2.0 recursive functions and return value

[Joern Nettingsmeier <nettings@xxxxxxxxxxxxxxxxxxxxxx>]

hi everyone!


i'm trying to write a branching recursive function, but i have a problem 
with the "xsl:sequence" being non-terminating.

how can i get the following to work:


<xsl:function name="r2c:hasTextContent" as="xs:boolean">
  <xsl:param name="node"/>
    <xsl:for-each select="$node/*">
      <xsl:choose>
        <!--ignore!-->
        <xsl:when test="r2c:isOutputNode(.)"/>
        <!--gotcha!-->
        <xsl:when test="r2c:isLeafNode(.)">
          <xsl:value-of select="true()"/>
        </xsl:when>
        <xsl:otherwise>
	<!-- recurse into the current node -->
          <xsl:sequence select="r2c:hasTextContent(.)"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:for-each>
  <!-- no leafNodes found?:-->
  <xsl:sequence select="false()"/>
</xsl:function>

this will inevitably put more than one boolean into my output sequence, 
which will cause an error.

iiuc, either i need a re-settable variable (which xsl does not have), or 
a way to terminate the function after each xsl:sequence. i found 
references to xsl:result, but it seems to have gone the way of the dodo...

any hints?


jC6rn



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