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" />

[download]
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.

/J\

In reply to Re^7: XML::XSLT problem by gellyfish
in thread XML::XSLT problem by artist

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.