I'm trying to figure out how to exclude text and graphics from an output
file (HTML or FO, for example) by testing for attributes in my XSL
stylesheet. For instance, I have an XML file with instructions
appropriate for both Macintosh users and Windows users. In one output
file, I want to exclude the instructions for Mac users, and in another,
I want to exclude the instructions for Windows users so I end up with a
set appropriate to each type of user.

I'm using the DocBook DTD and Norm Walsh's DocBook XSL stylesheets
(http://nwalsh.com/docbook/xsl/index.html). I've created an XSL file
called "bj.xsl" that extends his HTML XSL stylesheet. In it, I have a
test case that (hopefully?) excludes all elements, attributes, comments
and text with the attribute "Mac":

*****************************************
<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                version='1.0'
                xmlns="http://www.w3.org/TR/xhtml1/transitional"
                exclude-result-prefixes="#default">

<xsl:include href="docbook.xsl"/>

<xsl:template match="*|@*|comment()|text()">
 <xsl:if test="not(@os='Mac')">
  <xsl:copy>
   <xsl:apply-templates select="*|@*|comment()|text()" />
  </xsl:copy>
 </xsl:if>
</xsl:template>

</xsl:stylesheet>
*****************************************
This doesn't work, but I'm not sure what I'm doing wrong. Any
suggestions would be greatly appreciated.

--Beth Fischi



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