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dynamic-context type-branching

Subject: dynamic-context type-branching
From: ac <ac@xxxxxxxxxxxxx>
Date: Sun, 03 Feb 2008 14:36:07 -0500
 dynamic-context type-branching

In schema unaware xslt2 environments, what would be the best way to select action depending on the result type (ex: string, text node(s), attribute(s), element(s)) of saxon:evaluate(), ex:

idealy (v1) something like ...
<xsl:template match="context" mode="foo">
<xsl:param name="xpathstring" select="... some xpath string ... "/>
<xsl:apply-templates select="saxon:eval(saxon:evaluate($xpathstring)" mode="lama"/>

but since you cannot apply-templates on atomic types, alternately (v2) ...
<xsl:template match="context" mode="foo">
<xsl:param name="xpathstring" select="... some xpath string ... "/>
<xsl:variable name="tmp" select="saxon:eval(saxon:evaluate($xpathstring)"/>
<xsl:when test="$tmp instance of xs:anyAtomicType"><xsl:value-of select="$tmp"/></xsl:when>
<xsl:otherwise><xsl:apply-templates select="$tmp" mode="lama"/></xsl:otherwise>

Assuming mode="lama" has templates with appropriate matches for the different types.


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