[xquery-talk] Question on expected XQuery return per standards

[Michael Kay]

The xsl:value-of instruction in XSLT 1.0, or in XSLT 2.0 when running in
backwards-compatibility mode, only displays the first item in the selected
node-set. To display all the nodes, use xsl:copy-of.

Michael Kay
http://www.saxonica.com/
 

> -----Original Message-----
> From: Geert Josten [mailto:Geert.Josten at daidalos.nl] 
> Sent: 28 March 2009 15:24
> To: Michael Kay; talk at xquery.com
> Subject: RE: [xquery-talk] Question on expected XQuery return 
> per standards
> 
> 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
> 
> 
> http://www.daidalos.nl/
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> 
> > From: Michael Kay [mailto:mike at saxonica.com]
> > Sent: zaterdag 28 maart 2009 16:07
> > To: Geert Josten; talk at xquery.com
> > Subject: RE: [xquery-talk] 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/
> >
> >
>