Dear List,
(Using XSLT 2.0)
For a project, where several XSLT's are being used with each having
different parameters, the user, requesting the transformation, may set
these parameters. Incidentally, a user may set the wrong names for the
parameters (or the system may suggest the wrong names).
In any case, when the XSLT process starts, several parameters are set,
but may not exist in the xslt file. Is anyone aware of a method to get
these non-existing parameters, for instance, by using an extension? Does
Saxon have a way of doing this? Any other processor?
This is useful for finding potential mishaps, typos and errors. Also,
when adding new stylesheets, showing how the stylesheet was called,
helps. But my end-users only have a way of using stylesheets and cannot
access log files or anything. Suppose, naively, something exists like
the following:
<!-- getting a sequence of ('paramName' 'paramValue' 'paramName'
'paramValue') -->
<xsl:variable name="supplied-parameters"
select="saxon:getSuppliedParameters()" />
<xsl:for-each select="$supplied-parameters">
<xsl:value-of select="." />
<xsl:text>	</xsl:text>
<xsl:if test="position() mod 2">
<xsl:text>
</xsl:text>
</xsl:if>
<xsl:for-each>
When called like this (saxon specific syntax, one commandline):
java -jar saxon8.jar -t -o output.xml input.xml param.xslt param1="10"
param2="http://someurl"; param3="anyotherValue"
This would output something like:
param1 10
param2 http://someurl
param3 anyotherValue
Regardless of these parameters being defined or not in the stylesheet
"param.xslt".
Btw, I am using Java to call my template. Perhaps I can choose to use a
java class as an extension? But my main concern is: is this information
still available once the XSLT is called (the process is started), or is
it lost immediately, once the processor finds that the parameters do not
exist?
Thanks in advance for any advice,
Kind regards,
Abel Braaksma
http://abelleba.metacarpus.com