[xsl] use-when attribute?

Subject: [xsl] use-when attribute?
From: Bruce D'Arcus <bdarcus@xxxxxxxxxxxxx>
Date: Thu, 16 Dec 2004 20:40:45 -0500
I'm trying to understand the details of the use-when attribute in the latest XSLT 2.0 draft. Is the below a valid use?

<xsl:import href="output-xhtml.xsl" use-when="$output-format='xhtml'"/>

I'm trying to work out this idea of mine of designing for multiple output targets.

So what I want to do is is define an output-format parameter in my main stylesheet (as above). Likewise, I'd have a parameter for input format. I then want to condition which drivers get imported based on these parameters using the use-when attribute.

The main stylesheet would then get imported into other stylesheets like:

  <xsl:import href="citeproc.xsl"/>
  <xsl:template match="/">
    <xsl:apply-imports>
      <xsl:with-param name="output-format" select="xhtml" tunnel="yes"/>
    </xsl:apply-imports>
    <html>
      <head>
        <title>Testing</title>
      </head>
      <body>
        <div id="content">
          <div id="main-content">
            <xsl:apply-templates/>
            <div id="bibliography">
              <xsl:copy-of select="$formatted-biblist"/>
            </div>
          </div>
        </div>
      </body>
    </html>
  </xsl:template>

Do I have the right idea here?

Bruce

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