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Mark Maltby

Subject: buiding your own nodesets
Author: Mark Maltby
Date: 27 Jul 2006 01:59 PM

Is it possible inside xsl to build nodesets up from other nodes using xpath1. I saw there is sequencing in xpath2 but this is no good for me? So for example

<xsl:var name="myNodeSet"/>

<for each select="xmldoc/node">

copy current node (".") to variable myNodeSet

</for-each>

Thanks for any help in advance

Tony Lavinio

Subject: buiding your own nodesets
Author: Tony Lavinio
Date: 27 Jul 2006 02:18 PM

Not with for-each.
You cannot "accumulate" things in XSLT.
What you can do is specify a condition that will return all
of the nodes you care about.
This will return what is called a "result tree fragment" in XSLT 1.
To turn that into a node-set that you can do further processing on,
you will need a processor-specific extension function.
Typically they are called "node-set()" and are specified in the
documentation for the XSLT engine you are using.
If you tell us which one, we might be able to point you to the
relevant document.

Mark Maltby

Subject: buiding your own nodesets
Author: Mark Maltby
Date: 27 Jul 2006 02:26 PM

Tony Lavinio

Subject: buiding your own nodesets
Author: Tony Lavinio
Date: 27 Jul 2006 02:37 PM

http://www.xml.com/pub/a/2003/07/16/nodeset.html should help.

Mark Maltby

Subject: buiding your own nodesets
Author: Mark Maltby
Date: 27 Jul 2006 03:49 PM

Will functions like last(),position() and count() work with nodesets? It is hard to debug as the built in processor doesn't debug when using msxsl:node-set functionality.

Ivan Pedruzzi

Subject: buiding your own nodesets
Author: Ivan Pedruzzi
Date: 27 Jul 2006 04:27 PM

Hi Mark,

what do you mean " ...doesn't debug..."?

Ivan Pedruzzi
Stylus Studio Team

Mark Maltby

Subject: buiding your own nodesets
Author: Mark Maltby
Date: 27 Jul 2006 04:33 PM

If I switch the processor to built in one to debug, I get the following error message when it gets msxsl:node-set line/procedure

See screen shot

Ivan Pedruzzi

Subject: buiding your own nodesets
Author: Ivan Pedruzzi
Date: 27 Jul 2006 06:01 PM

I am not able to reproduce the error, could please post a test case (XML + XSLT)?

Thank You
Ivan Pedruzzi
Stylus Studio Team

Mark Maltby

Subject: buiding your own nodesets
Author: Mark Maltby
Date: 28 Jul 2006 06:08 AM

I finally figured out what the problem is. Please see my simplified attached style sheet. The problem occurs when the node set has no nodes contained in it and you use the built in processor. This could happen in the stylesheet I am creating.

So my new question is whether you can test for a valid node set.

Thanks

MsxslDebugIssue.xsl

Mark Maltby

Subject: buiding your own nodesets
Author: Mark Maltby
Date: 28 Jul 2006 11:32 AM

Any info on this yet?

Ivan Pedruzzi

Subject: buiding your own nodesets
Author: Ivan Pedruzzi
Date: 28 Jul 2006 12:03 PM

<xsl:if test="$myNodeSet2">
<xsl:for-each select="msxsl:node-set($myNodeSet2)/myNode">
<p>
<xsl:value-of select="."/>
</p>
</xsl:for-each>
</xsl:if>

Ivan Pedruzzi
Stylus Studio Team

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