Question on expected XQuery return per standards

[Geert Josten]

Hi Michael,

I ran it against msxsl 4.0, Xalan 2.7.0, Saxon 8 and Saxon 9. They all returned p2 in all cases..

Test.xml:

<?xml version="1.0"?>
<root>
     <div>
       <p>p1</p>
       <p>p2</p>
     </div>
     <div>
       <p>p3</p>
       <p>p4</p>
     </div>
   </root>

Test.xsl:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:output encoding="utf-8" indent="no" />

<xsl:template match="/">
<!-- set1 - return all p's with position() = 2. Expected result: (p2, p4).  -->

   <set1><xsl:value-of select=" /descendant-or-self::node()/p[position() = 2] "/></set1>,

   <!-- set2 - XPath abbreviation // is equivalent to /descendant-or-self::node()/
      by definition. Result should still be (p2, p4) -->

   <set2><xsl:value-of select=" //p[position() = 2] "/></set2>,

   <!-- set3 - XPath predicate [2] is equivalent to [position() = 2]. Results
      should be identical to set1/set2 -->

   <set3><xsl:value-of select=" /descendant-or-self::node()/p[2] "/></set3>,

   <!-- set4 - final syntax variation with full abbreviation. Results should
      still be identical to set1/set2/set3 -->

   <set4><xsl:value-of select=" //p[2] "/></set4>,

   <!--set5 - This is the only one that should return a single node, p2.
     The XPath should return the second instance of all <p> descendants
     of . -->
   <set5><xsl:value-of select=" /descendant::p[2] "/></set5>
</xsl:template>

</xsl:stylesheet>

Changing the version of the XSL to 2.0 and running it again with Saxon did return the expected results. But with version 1.0 even Saxon was strangely enough returning p2 only..

Kind regards,
Geert

>


Drs. G.P.H. Josten
Consultant


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> From: Michael Kay [mailto:http://x-query.com/mailman/listinfo/talk]
> Sent: zaterdag 28 maart 2009 16:07
> To: Geert Josten; http://x-query.com/mailman/listinfo/talk
> Subject: RE:  Question on expected XQuery return
> per standards
>
>
> > Is it true that Xpath 2.0 has changed the meaning of such
> expressions
> > compared to Xpath 1.0?
>
> No, this is unchanged since XPath 1.0.
>
> Which processors did you try, and can we see your code?
>
> Michael Kay
> http://www.saxonica.com/
>
>