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Re: Capturing result of <xsl:apply-templates/> in a v

Subject: Re: Capturing result of <xsl:apply-templates/> in a variable
From: David Carlisle <davidc@xxxxxxxxx>
Date: Tue, 06 Dec 2011 20:25:41 +0000
Re:  Capturing result of <xsl:apply-templates/> in a  v
On 06/12/2011 19:52, David Sewell wrote:
Just now when writing a transform, for temporary diagnostic purposes I
needed to produce messages showing (1) the initial string value of an
input element before template application, and (2) the output string
value after template application. Oddly enough I have never before
wanted to do precisely that task.

A moment's reflection suggested that I could capture the result of
<xsl:apply-templates/> and use it as a variable, thus (given XSLT 2.0):

<xsl:template match="INPUT">
<xsl:variable name="appliedTemplates" as="item()+">
<xsl:apply-templates/>
</xsl:variable>
the + there means this will generate an error if the apply-templates generates no output, whereas the original version would just silently produce nothing. a * would allow this empty result.

David

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