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   Re: Big Conditional XSL queries...

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  • From: Paul Tchistopolskii <paul@qub.com>
  • To: xml-dev@xml.org
  • Date: Tue, 20 Jun 2000 02:54:58 -0700

From: Kay Michael 

> >My problem is that if I'm given a few different parameters, how can I
> easily
> >and efficiently build an XSL search pattern that accounts for various
> >positioning within the XML structure?
> XSLT doesn't allow XPath queries to be constructed dynamically, so this is a
> bit difficult. (Saxon has an extension to do this called saxon:evaluate()).

> One thing you could use is a sequence of filter steps:

[ skipped ]

The third generalized way to workaround the limitation of not-evaluatable 
Xpath ( not-evaluatable import e t.c. ) could be  on-the fly 
compilation of the stylesheet. Stylesheet 1 receives parameters and generates 
the stylesheet 2 , then stylesheet 2 is applied.


PS. I consider saxon:evaluate() to be the most reasonable workaround, 
but I have to mention this 'on-the-fly' way - for some reasons 
( unclear to me) some people like it.  

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