Re: [xsl] Findings: Merging XSL:FO & HTML Style Sheets

Subject: Re: [xsl] Findings: Merging XSL:FO & HTML Style Sheets
From: Jeni Tennison <jeni@xxxxxxxxxxxxxxxx>
Date: Wed, 6 Mar 2002 10:01:50 +0000
Peter Bray wrote:
> The wrappers are necessary as the <xsl:output> element's attributes
> can not be substituted with parameters/variables and XSLT does not
> support <xsl:choose> outside of <xsl:template>. The wrappers consist
> merely of the standard header trailer for valid XSLT, an
> <xsl:output> element setting up the necessary parameters for each
> generation mode and an <xsl:include> of the core XSLT file.

Just to note that this particular case, where you want to alter the
values of the attributes of the xsl:output element, is addressed in
the XSLT 2.0 Working Draft - all the attributes of xsl:output (aside
from 'name') are attribute value templates.

Having said that, I think that a more elegant way to determine output
based on some parameter, given the capabilities of XSLT 2.0, would be
to have two output declarations:

<xsl:output name="html" method="html" ... />
<xsl:output name="fo" method="xml" ... />

And determine which was used with a xsl:result-document element in
the template matching the root node:

<xsl:template match="/">
  <xsl:choose>
    <xsl:when test="$format = 'html'">
      <xsl:result-document format="html" href="result.html">
        <xsl:apply-templates mode="html" />
      </xsl:result-document>
    </xsl:when>
    <xsl:otherwise>
      <xsl:result-document format="fo" href="result.fo">
        <xsl:apply-templates mode="fo" />
      </xsl:result-document>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

Cheers,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/


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