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RE: [xsl] Interpretation of preceding axis (preceding-sibling in particular)

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Hello John-Paul !

I think you don't take into account <xsl:apply-templates> element's default sorting behaviour - unless you specify children <xsl:sort> elements, it processes selected set of nodes in document order.
http://www.w3.org/TR/xslt.html#section-Applying-Template-Rules

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Oleg Tkachenko,
Multiconn International 

> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of 
> John-Paul Sicotte
> Sent: Friday, August 03, 2001 7:00 PM
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] Interpretation of preceding axis 
> (preceding-sibling in particular)
> 
> 
> 
> Hi,
> 
>    I have read several of the threads on the preceding axes and looked 
> at the FAQ but I am still not 100% sure what should be returned.  I 
> have built a stylesheet and an input file to illustrate the issue. It 
> tests the actual node set returned as well as the position of those 
> nodes.
> 
> xslt file
> ==========
> 
> <?xml version="1.0" encoding="ISO-8859-1"?>
> 
> <xsl:stylesheet version = "1.0"
>   xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> 
> <xsl:template match = "/document" >
>   <xsl:apply-templates select="element[1]"  mode = "siblings"/>
>   <xsl:apply-templates select="element[5]"  mode = "siblings"/>
>   <xsl:apply-templates select="element[10]" mode = "siblings"/>
> </xsl:template>
> 
> <xsl:template match = "element" mode = "siblings">
>   <xsl:call-template name = "siblings"/>
> </xsl:template>
> 
> 
> <xsl:template match = "element" mode = "position"><xsl:value-of 
> select = "position()"/></xsl:template>
> 
> <xsl:template name = "siblings">
> Context Node:         <xsl:value-of select = "."/>
> Preceeding Siblings:  <xsl:apply-templates 
> select="preceding-sibling::element"/>
> Preceeding Position:  <xsl:apply-templates 
> select="preceding-sibling::element" mode = "position"/>
> Following Siblings:   <xsl:apply-templates 
> select="following-sibling::element"/>
> Following Position:   <xsl:apply-templates 
> select="following-sibling::element" mode = "position"/>
> </xsl:template>
> 
> </xsl:stylesheet>
> --------------------
> 
> xml file
> 
> <?xml version = "1.0" standalone = "yes" ?>
> <document>
>   <element pos = "1">1</element>
>   <element pos = "2">2</element>
>   <element pos = "3">3</element>
>   <element pos = "4">4</element>
>   <element pos = "5">5</element>
>   <element pos = "6">6</element>
>   <element pos = "7">7</element>
>   <element pos = "8">8</element>
>   <element pos = "9">9</element>
>   <element pos = "10">0</element>
> </document>
> 
> --------------------------------------
> 
> I got the following output from XT
> 
> Context Node:         1
> Preceeding Siblings:
> Preceeding Position:
> Following Siblings:   234567890
> Following Position:   123456789
> 
> Context Node:         5
> Preceeding Siblings:  1234
> Preceeding Position:  1234
> Following Siblings:   67890
> Following Position:   12345
> 
> Context Node:         0
> Preceeding Siblings:  123456789
> Preceeding Position:  123456789
> Following Siblings:
> Following Position:
> 
> This position values seem incorrect to me.  I would have expected the 
> positions to be reversed (ie 4321 and 987654321).  It seems clear to me
> that the reverse axes are counted from the context node backwards.  The 
> immediately previous node should be 1.  
> 
> The actual node ordering appears to be correct.  Regardless of the 
> axis the nodes are returned in document order, only the position 
> changes.  Is this interpretation correct?
> 
> 						John-Paul
> 
> ----------------------
> John-Paul Sicotte
> Software Composer
> MessagingDirect
> mailto:John-Paul.Sicotte@xxxxxxxxxxxxxxxxxxx
> 
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 


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