Re: [xsl] Adding namespace nodes question

[Jeni Tennison <jeni@xxxxxxxxxxxxxxxx>]

Mike Kay wrote:
> AFAIK the only way to add a namespace node to the result tree, when
> the namespace isn't present in either the source document or the
> stylesheet, is to create an element on a temporary tree that uses
> that namespace, and then use xsl:copy[-of] to copy the namespace
> node from the temporary tree to the result tree. Even this relies on
> (a) the errata to XSLT 1.0, and (b) the xx:node-set() extension.
>
> <xsl:variable name="temp">
>   <xsl:element name="{$prefix}.temp" namespace="{.}"/>
> </xsl:variable>
>
> <xsl:copy-of select="xx:node-set()/*/namespace::*"/>

There's also the dummy-attribute approach, where you create ignorable
attributes in the namespace:

<xsl:template match="elem">
  <xsl:element name="{@name}" namespace="{ns[@type = 'own']}">
    <xsl:for-each select="ns[@type = 'extra']">
      <xsl:attribute name="{@prefix}:dummy" namespace="{.}" />
    </xsl:for-each>
  </xsl:element>
</xsl:template>

Given:

<elem name="myElem">
  <ns type="own" prefix="">http://www.domain1.org/ns</ns>
  <ns type="extra" prefix="pre2">http://www.domain2.org/ns</ns>
  <ns type="extra" prefix="pre3">http://www.domain3.org/ns</ns>
</elem>

Produces:

<myElem xmlns="http://www.domain1.org/ns";
        xmlns:pre2="http://www.domain2.org/ns";
        xmlns:pre3="http://www.domain3.org/ns";
        pre2:dummy="" pre3:dummy="" />

Of course if you're not happy with the dummy attributes being present,
then you have to post-process to get rid of them, which you can do
with the identity template plus:

<xsl:template match="@*[local-name() = 'dummy']" />

And to do that in one stylesheet you require a node-set() extension.
        
Cheers,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/


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