Subject: Re: Equivalence between XSL and XPath expression
From: Geert Josten <Geert.Josten@xxxxxxxxxxx>
Date: Sat, 11 Dec 2004 22:24:52 +0100
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Err, correct me if I am wrong, but doesn't the 'preceding' axis include the ancestors as well?
I would have guessed that the 'equivalent' would have been:
count(self::menu)+count(preceding::menu)
(apart from the zero-count case mentioned below)
Cheers,
Geert
Michael Kay wrote:
And the question is: Is this XPath expression
count(./ancestor-or-self::menu)+count(./preceding::menu)
equivalent to this XSL expression?
<xsl:variable name="position">
<xsl:number level='any' count="menu"/>
</xsl:variable>
Almost. xsl:number will never return 0, but the XPath expression might. Take
a look at the XSLT 2.0 spec which defines xsl:number in terms of equivalent
XPath expressions.
Michael Kay
http://www.saxonica.com/
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Geert Josten - 11 Dec 2004 21:25:33 -0000 <=
Michael Kay - 11 Dec 2004 22:28:29 -0000
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