Marrow,

sorry I forgot one important thing. The constants 44,43 etc. used in
the preselection are actually variables in my case and must probaly
also be used in the key. But I think it is not allowed to have
variables in the match attribute!
This make it probably even more difficult.

Thanks
Rolf
 

"Marrow" <marrow@s...> wrote in message news:<Fuk7d.1464$vW1.460@n...>...
> Hi Rolf,
> 
> When comparing node-sets it is as well to remember that x != y is not quite
> the same as not(x = y).
> 
> But anyway, I don't think it's worth trying to do what you want using the
> preceding method for obtaining uniques - the Muenchian technique will be
> much easier and yield far better performance, e.g.
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
>   <xsl:output method="text"/>
> 
>   <xsl:key name="kDistinctPins" match="Pin" use="@PinName"/>
> 
>   <xsl:variable name="TestNodes" select="Root/TEST/Pin"/>
>   <xsl:variable name="MultiplePins"
> select="$TestNodes[count(key('kDistinctPins',@PinName)) &gt; 1]"/>
>   <xsl:variable name="UniqueMultiplePins"
> select="$MultiplePins[generate-id() =
> generate-id(key('kDistinctPins',@PinName))]"/>
> 
>   <xsl:template match="/">
>     <xsl:text>all pins of all test nodes ==> OK&#10;</xsl:text>
>     <xsl:for-each select="$TestNodes">
>       <xsl:value-of select="@PinName"/>
>       <xsl:text>&#10;</xsl:text>
>     </xsl:for-each>
>     <xsl:text>&#10;multiple pins  ==> OK&#10;</xsl:text>
>     <xsl:for-each select="$MultiplePins">
>       <xsl:value-of select="@PinName"/>
>       <xsl:text>&#10;</xsl:text>
>     </xsl:for-each>
>     <xsl:text>&#10;unique pins ==> OK&#10;</xsl:text>
>     <xsl:for-each select="$UniqueMultiplePins">
>       <xsl:value-of select="@PinName"/>
>       <xsl:text>&#10;</xsl:text>
>     </xsl:for-each>
>   </xsl:template>
> </xsl:stylesheet>
> 
> 
> Btw, don't overuse the concat() function - especially not for literal
> output... you are just doing concatenation where the transformation engine
> will already serialize the output.
> 
> HTH
> Marrow
> http://www.marrowsoft.com - home of Xselerator (XSLT IDE and debugger)
> http://www.topxml.com/Xselerator
> 
> 
> "Rolf Kemper" <KemperR@e...> wrote in message
> news:bbd6fe79.0410010704.2944868d@p......
> > Dear Experts,
> >
> > I got stuck with the following problem and need your help.
> >
> > What I wnat to do is to get a set of distinct nodes.
> > Before the distinct I have selected the multiple occourences already
> > sucsessfully. However , the rest does not work as expected.
> >
> > Hope someone can help on that.
> > Rolf
> >
> > ############################### DATA ################################
> >
> > My XML DATA:
> > <?xml version="1.0" encoding="UTF-8"?>
> > <Root>
> > <TEST>
> > <Pin  PinName="A" />
> > <Pin  PinName="B" />
> > <Pin  PinName="B" />
> > <Pin  PinName="C" />
> > <Pin  PinName="X" />
> > </TEST>
> > <TEST>
> > <Pin  PinName="A" />
> > <Pin  PinName="D" />
> > <Pin  PinName="C" />
> > <Pin  PinName="X" />
> > <Pin  PinName="A" />
> > </TEST>
> > </Root>
> >
> >
> > My Test XSLT:
> > <?xml version="1.0" encoding="UTF-8"?>
> > <xsl:stylesheet version="1.0"
> > xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> > xmlns:fo="http://www.w3.org/1999/XSL/Format">
> > <xsl:output method="text"/>
> > <xsl:variable name="NewLine" select="'&#x0d;&#x0a;'"/>
> >
> > <xsl:variable name="TestNodes" select="Root/TEST"/>
> > <xsl:variable name="MultiplePins"  select="$TestNodes/Pin[@PinName =
> > preceding::Pin/@PinName]"/>
> > <xsl:variable name="UniqueMultiplePins"
> > select="$MultiplePins[@PinName != preceding::*/@PinName]"/>
> >
> >     <xsl:template match="/">
> >         <xsl:value-of select="concat('all pins of all test nodes ==>
> > OK ',$NewLine)"/>
> > <xsl:for-each select="$TestNodes/Pin">
> > <xsl:value-of select="concat(@PinName,$NewLine)"/>
> > </xsl:for-each>
> > <xsl:value-of select="$NewLine"/>
> >
> > <xsl:value-of select="concat('multiple pins  ==> OK ',$NewLine)"/>
> > <xsl:for-each select="$MultiplePins">
> > <xsl:value-of select="concat(@PinName,$NewLine)"/>
> > </xsl:for-each>
> > <xsl:value-of select="$NewLine"/>
> >
> > <xsl:value-of select="concat('unique pins ==> NOT GOOD !!
> > ',$NewLine)"/>
> > <xsl:for-each select="$UniqueMultiplePins">
> > <xsl:value-of select="concat(@PinName,$NewLine)"/>
> > </xsl:for-each>
> >
> >     </xsl:template>
> >
> > </xsl:stylesheet>
> >
> > My results (gained by XMLSpy debug mode):
> >
> > all pins of all test nodes ==> OK
> > A
> > B
> > B
> > C
> > X
> > A
> > D
> > C
> > X
> > A
> >
> > multiple pins  ==> OK
> > B
> > A
> > C
> > X
> > A
> >
> > unique pins ==> NOT GOOD !!
> > B
> > A
> > C
> > X
> > A
> >
> > ( I expected B A C X )
> > #################### End #################################