You did not specify which XSLT version you are interested in.
For XSLT 1.0 the <xsl:choose> solution you showed is the only solution.
Mit besten Gruessen / Best wishes,
Hermann Stamm-Wilbrandt
Level 3 support for XML Compiler team and Fixpack team lead
WebSphere DataPower SOA Appliances
https://www.ibm.com/developerworks/mydeveloperworks/blogs/HermannSW/
https://twitter.com/HermannSW/ http://www.stamm-wilbrandt.de/ce/
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|"Costello, Roger L." <costello(_at_)mitre(_dot_)org>
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| To: |
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|"xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com"
<xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com>,
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| Date: |
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|08/02/2013 04:26 PM
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| Subject: |
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|[xsl] Data-driven XSLT code using dynamic mode values?
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Hi Folks,
I want to have multiple templates for the same element, each template
processes the element differently.
"Use modes," you say.
Okay, sounds good. So I will have multiple template rules:
<xsl:template match="Header" mode="Remove">
<xsl:template match="Header" mode="Replace">
<xsl:template match="Header" mode="Reject">
Now let's turn to the problem of firing the appropriate template rule.
I have a variable which has a value that indicates whether I should do a
Remove, Replace, or Reject:
<xsl:variable name="action" select="get the action from an XML file" />
I want to fire a template rule based on the value of $action.
Here's what I really, really want to do:
<xsl:apply-templates select="." mode="$action" />
That would be so cool. That would truly be "data-driven code."
Unfortunately, using a variable as the value of @mode is not allowed.
Bummer.
Is my only solution to use xsl:choose:
<xsl:choose>
<xsl:when test="$action eq 'Remove'">
<xsl:apply-templates select="." mode="Remove" />
</xsl:when>
<xsl:when test="$action eq 'Replace'">
<xsl:apply-templates select="." mode="Replace" />
</xsl:when>
<xsl:when test="$action eq 'Reject'">
<xsl:apply-templates select="." mode="Reject" />
</xsl:when>
</xsl:choose>
That is an awful solution. It is brittle and not extensible code.
Please, please show me a better way than using xsl:choose.
/Roger
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