Subject: RE: [xsl] tail recursion and NaN From: <Jarno.Elovirta@xxxxxxxxx> Date: Tue, 4 May 2004 08:52:46 +0300 |
Hi, > <!--This is the template with recursion to add the prices, > needs test for NaN--> > <xsl:template name="total-value"> > <xsl:param name="price"/> > <xsl:param name="result" select="0"/> > <xsl:choose> > <xsl:when test="$price"> > <xsl:call-template name="total-value"> > <xsl:with-param name="price" > select="$price[position() > 1]"/> > <xsl:with-param name="result" > select="($result + $price)"/> E.g.Replace this with <xsl:with-param name="result"> <xsl:choose> <xsl:when test="string(number($price[1])) = 'NaN'"> <xsl:value-of select="$result"/> </xsl:when> <xsl:otherwise> <xsl:value-of select="$result + $price[1]"/> </xsl:otherwise> </xsl:choose> </xsl:with-param> or place the test outside the xsl:call-template to pass the $result always as a number. > </xsl:call-template> > </xsl:when> > <xsl:otherwise><xsl:value-of > select="$result"/></xsl:otherwise> > </xsl:choose> > </xsl:template> Quick test reveals that e.g. in Saxon 6.5.3 if you keep the $price bound to the same node-set and use a $cursor to point to the node being processed, with large documents the processing time goes down a third. Though you have to test if it helps your complete stylesheets and is faster in your choise of XSLT engine. Cheers, Jarno - this weeks Real Synthetic Audio <http://www.synthetic.org/play.html>
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
[xsl] tail recursion and NaN, Susan Campbell | Thread | RE: [xsl] tail recursion and NaN, Jarno.Elovirta |
[xsl] date:difference function in x, Ravi Chayanam | Date | RE: [xsl] tail recursion and NaN, Jarno.Elovirta |
Month |