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[xsl] alternative for modes


Subject: [xsl] alternative for modes
From: "Peter Billen" <peter@xxxxxxxxxxx>
Date: Thu, 12 Feb 2004 11:10:48 +0100

Hello all,

I'm having a problem with doing something on a more proper way, I hope you
help me with this one.

Imagine you have a template which can be used on several places in your
stylesheet, let's call it 'generalTemplate'

<xsl:template name="generalTemplate>
	do some calculations here, but stay in current node context (so no
for-each, ... -  see below)
	<xsl:apply-templates>
		... 
	</xsl:apply-templates>
</xsl:templates>

Imagine this function can be called on a tag <root> and <child> is a child
of that tag. So each time when 'generalTemplate' is called, a template which
matches the tag 'child' will be called too:

<xsl:template match="child">
	...
</xsl:template>

As I mentioned above, 'generalTemplate' can be called on several places in
the template, because everytime I need the same calculations, ... on the
'root'-tag. But each time (in every other place), I actually need different
manipulations on the 'child'-tag.

A nice way to accomplish would be this, but this doesn't work since mode
should be a qname, and not an xpath expression:

<xsl:template name="generalTemplate>
	<xsl:param name="p"/>
	<xsl:apply-templates mode="$p">
		...
	</xsl:apply-templates>
</xsl:templates>

<xsl:template match="child" mode="situation1">...</>
<xsl:template match="child" mode="situation2">...</>
...

Then I came up with the following:

<xsl:template name="generalTemplate>
	<xsl:param name="p"/>
	<xsl:apply-templates>
		<xsl:with-param name="p" select="$p"/>
		...
	</xsl:apply-templates>
</xsl:templates>

<xsl:template match="child">
	<xsl:if test="$p = 'situation1'>
		...
	<xsl:if test="$p = 'situation2'>
		...
	...
</xsl:template>

Actually, this works perfect, but I don't like it.

So my question is now: are there any other outcomes for this situation,
which do this on a more generic way?

Thanks for your time,

Peter


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