Re: [xsl] Possible MSXML 3 / 4 bug: using a for-each on xsl:variable / tre e-frag is misbehaving

[Joerg Heinicke <joerg.heinicke@xxxxxx>]

Hello Jeff,

sorry, but it isn't a bug. You already said the solution: "given for-each's 
context". You are switching the context to another XML tree (the RTF) 
instead of the original document. What you can do is a second for-each 
inside the first switching the context back to oringial document or simply 
accessing the original document stored in a variable:

<xsl:variable name="orig" select="/"/>

>    <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="$orig/xml/an-element"/>
                                      ^^^^^

or

              <xsl:for-each select="$orig">
                 <xsl:copy-of select="/xml/an-element"/>
              </xsl:for-each>

>             </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>

Regards,

Joerg


Jeff Beadle wrote:
> Howdy all,
>
> 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 sucks.
>
>
> 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"?
>
>
> Thanks,
> Jeff


--

System Development
VIRBUS AG
Fon  +49(0)341-979-7419
Fax  +49(0)341-979-7409
joerg.heinicke@xxxxxxxxx
www.virbus.de


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