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Re^6: XML::XSLT problem

by artist (Parson)
on Nov 17, 2006 at 18:43 UTC ( #584780=note: print w/replies, xml ) Need Help??

in reply to Re^5: XML::XSLT problem
in thread XML::XSLT problem

Interesting.. I found <fo> tags in my original XSL. Should they be processed in correctly with XSLT or should throw the error?

Update: Actually, I <fo> tags works fine, but <xsl:variable> tag gives problem: Here is the sample code

<xsl:variable name="TextFontSize">10</xsl:variable>
On further investigation, I found that this tag works fine inside <xsl:template> but fails when you declare it globally, See Example 3.

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Re^7: XML::XSLT problem
by gellyfish (Monsignor) on Nov 17, 2006 at 21:21 UTC

    XML::XSLT should just ignore the fo stuff, though that isn't being tested.

    But yes you have uncovered a bug in a code path which wasn't being tested. Basically the problem is with an outer <xsl:variable /> declaration where there is a literal value (like you have there) rather than supplied with a value attribute. It needs to create a document fragment to store the results of evaluating the literal value and createDocumentFragment() needs to be called as a method of the XML::DOM::Document object, but as the top level variables are evaluated on the first parse of the XSL document there isn't an XML::DOM::Document yet :-(.

    The bottom line is that whilst your example above could quite happily be expressed as:

    <xsl:variable name="TextFontSize" value="10" />
    I can't promise a quick fix that does the right thing as surprisingly it's going to require quite a large change, You might want to check out the version in CVS but that cheats with the document fragment and elicits a warning from XML::DOM and also doesn't respect any XML in the variable value but YMMV. Caveat Emptor etc etc.

    But I have a test for this now so it will get fixed eventually

    Thanks for the bug report, sorry I can't help you straight away.


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