I have a stylesheet that initializes some keys based on content in the input document. Then, the stylesheet applies templates to a node set variable whose contents come from an external file. For awhile I was very confused, because the keys weren't accessible from the templates that were being applied in the different context.

<xsl:key name="c" match="rm:content" use="string(@name)"/>
<xsl:key name="l" match="rm:label" use="string(@name)"/>
<xsl:variable name="orig-context" select="/"/>

...

<xsl:variable name="wf">
    <xsl:copy-of select="document($wf-filepath)"></xsl:copy-of>
</xsl:variable>

<xsl:template match="/rm:contentList">
    <xsl:apply-templates select="$wf"/>
</xsl:template>

<xsl:template match="rm:insert[@label]">
    <xsl:apply-templates select="key('l', @label, $orig-context)"/>
</xsl:template>

The variable $wf contains the rm:insert elements that are matched by the final template.

Now the question is -- is there a way to reference the "original" context, i.e., the document that processor originally encounters as the input tree? I've stored the document in the variable $orig-context, but this doesn't seem like an efficient or particularly elegant solution.

Is there some special syntax to access the original context from a context created when applying templates to a node set variable?

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