Re: stylesheet params and parsing a (MathML) string

> After a while I came to the (not-so-suprising) conclusion that this 
>created element is in the xhtml namespace (which is the default of my 
> stylesheet) hence matching: match="xhtml:myTree" works. This means that 
> I have to declare this as well as a namespace in the stylesheet. This 

XSLT doesn't care but you probably shouldn't be putting your own
elements into the xhtml namespace, you can explicitly put them in
some other namespace using the namespace attribute of xsl:element
but then you'd have to declare that namespace again to match on the
elemens so simpler is probably to put them all in no-namespace

xsl:element isn't needed if your element names are known in advance so
I'd use literal result elements
and locally switch the default namespace so instead of

<xsl:variable name="tree">
    <xsl:element name="myTree">
        <xsl:attribute name="id">
            <xsl:value-of select="$param1"/></xsl:attribute>
        </xsl:attribute>
        <xsl:value-of select="$param2"/>	    	
    </xsl:element>
</xsl:variable>


do

<xsl:variable name="tree" xmlns="">
<myTree id="{$param1}">
        <xsl:value-of select="$param2"/>	    	
</myTree>
</xsl:variable>

> I was hoping that
>
>        <xsl:copy-of select="exsl:node-set($param2)"/>	    	
>
>  would work but it obviously can't.

If $param2 is a string thaen as you say you'll need a parser.
some systems (eg saxon) provide extension functions to parse a string
(and in msxml you could easily write an jscript extension function to do
this)
 alternatively (and better in many cases) is to pass a node set
representing a parsed document in as the parameter then you can apply
templates directly to it and dont need nodeset() at all.
Yousualy you can't do this from a command line call but can do it if you
are calling xslt from any kind of script or API.

David
-- 
http://www.dcarlisle.demon.co.uk/matthew

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