Re: [xsl] xsl 2.0 recursive functions and return value

Subject: Re: [xsl] xsl 2.0 recursive functions and return value
From: Joern Nettingsmeier <nettings@xxxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 26 Feb 2006 21:53:53 +0100
Michael Kay wrote:
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>

Use xsl:sequence here! xsl:value-of creates a text node. You're converting a boolean to a string, wrapping the string in a text node, then because an xs:boolean is required, the text node is atomized, and the string "true" is converted back to a boolean.

of course. it was supposed to be a sequence, but old habits...


<xsl:function name="r2c:hasTextContent()" as="xs:boolean">
  <xsl:param name="node" as="node()"/>
  <xsl:sequence select="some $x in $node/*[not(r2c:isOutputNode(.)]
     (r2c.isLeafNode($x) or r2c.hasTextContent($x))"/>

wow. quantifiers! cool. i hadn't yet noticed they exist.

please no more spoilers, your books on xsl2/xpath2 are scheduled to arrive on tuesday :-D

thanks a lot!


-- jvrn nettingsmeier

home://germany/45128 essen/lortzingstr. 11/

if you are a free (as in "free speech") software developer
and you happen to be travelling near my home, drop me a line
and come round for a free (as in "free beer") beer. :-D

Current Thread