RE: Possible MSXML 3 / 4 bug: using a for-each on xsl

thanks Oleg for the help ... I'll be giving the "usual trick" a shot!  

Thanks,
Jeff

-----Original Message-----
From: Oleg Tkachenko [mailto:olegt@xxxxxxxxxxxxx]
Sent: Tuesday, May 14, 2002 11:13 AM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re:  Possible MSXML 3 / 4 bug: using a for-each on
xsl:variable / tre e-frag is misbehaving


Hello!

I believe that's not a bug at all, its fully specification-defined
behaviour.
"/xml/an-element" expression means select all an-elements children of xml 
elements etc *in the same document as the context node*. The context node in

the place is item element in a result tree frag (temporary tree), so that 
expression selects nothing.
You can use usual trick - save original document root in a variable and use
it 
when you need access to the tree:

       <xsl:variable name="root" select="/"/>
       <xsl:for-each select="msxsl:node-set($items)/item">
         <using_msxsl_node-set child-id="{@id}">
           <xsl:copy-of select="$root/xml/an-element"/>
         </using_msxsl_node-set>
       </xsl:for-each>

-- 
Oleg Tkachenko
Multiconn International, Israel


Jeff Beadle wrote:

> I looked through the archives and went to Microsoft's msxml site and
> couldn't find any "PRB" or "BUG" reports regarding this "issue".
> 
> Here's what I'm seeing:  Within an xsl:for-each element, where the select
is
> made against an xsl:variable tree-frag, xpath statements are failing to
> nodes outside of the given for-each's context.
> 
> 
> Here's the xml:
> 
> <?xml version="1.0"?>
> <xml>
> <an-element>
>    <child id="child01"/>
>    <child id="child02"/>
> </an-element>
> <collection>
>    <item id="item01"/>
>    <item id="item02"/>
> </collection>
> </xml>
> 
> 
> Here's the xslt:
> 
> <?xml version="1.0" ?>
> <xsl:stylesheet version="1.0" exclude-result-prefixes="msxsl"
>       xmlns:msxsl="urn:schemas-microsoft-com:xslt"
>       xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
>    <xsl:output method="xml" indent="yes" encoding="utf-8"/>
>    <xsl:template match="/">
>       <output>
>          <xsl:variable name="items" >
>             <xsl:copy-of select="//item"/>
>          </xsl:variable>
>          <xsl:for-each select="msxsl:node-set($items)/item">
>             <using_msxsl_node-set child-id="{@id}">
>                <xsl:copy-of select="/xml/an-element"/>
>             </using_msxsl_node-set>
>          </xsl:for-each>
>          <xsl:for-each select="//item">
>             <NOT_using_msxsl_node-set child-id="{@id}">
>                <xsl:copy-of select="/xml/an-element"/>
>             </NOT_using_msxsl_node-set>
>          </xsl:for-each>
>       </output>
>    </xsl:template>
> </xsl:stylesheet>
> 
> 
> Here's the output (I get):
> 
> <?xml version="1.0" encoding="utf-8" ?>
> <output>
>    <using_msxsl_node-set child-id="item01" />
>    <using_msxsl_node-set child-id="item02" />
>    <NOT_using_msxsl_node-set child-id="item01">
>       <an-element>
>          <child id="child01" />
>          <child id="child02" />
>       </an-element>
>    </NOT_using_msxsl_node-set>
>    <NOT_using_msxsl_node-set child-id="item02">
>       <an-element>
>          <child id="child01" />
>          <child id="child02" />
>       </an-element>
>    </NOT_using_msxsl_node-set>
> </output>
> 
> 
> If this is not a user error/bug and truly is a bug within msxml, then this
> one really [expletive deleted].
> 
> 
> I can think of workarounds but they're a major pain in the you-know-what.
> 
> ... oh, and for those will immediately ask:  "Can you re-design the code
not
> to use a variable?"  Nope, I can't ...  well, I'm pretty sure I can't.
> Within the real code, I have to build and work with temporary
> objects/results.
> 
> 
> So, has anyone encountered this "issue"?


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list