Hi Karl,
If you don't have Mike's book XSLT Programmer's Reference, you are
missing something :) It discusses best practices, design patterns and
many great things about XSLT. Hope you have this book, or will buy it
:)
Regards,
Mukul
On 7/20/05, Karl Koch <TheRanger(_at_)gmx(_dot_)net> wrote:
Hello all,
by now I have done some XSLT scripting mostly with our help and with
background from many many trials and good O'Reilly books :-). I have also
background in a range of programming languages. Coming from thie background
I find it quite difficult, but not impossible, to generate stylesheets.
However, ensuring that they do the rignt thing (on the semanic level) is
quite a headache. Therefore I have at least one or two tests for each
stylesheet (e.g. I have a stylesheet that removes structures which contain
title nodes; than I have another stylesheet that extracts only those who
contain titles and I compare their numbers (number of extraced structures)
regarding the original set. If they add up they do very probable the right
thing - OR THEY ARE BOTH WRONG TO THE SAME DEGREE). I guess you get my
problem here. It is really difficult and depends on the problem. It can also
go very easily completely wrong. If there are small errors it might result
in mistakes in the data which are almost impossible to find (e.g. in very
large data sets of 10000s of XML structures).
My question here is: How do you verify your stylesheets?
Is there software or methodlogy which deals with this problem? I think, the
incredibly flexiblity and power of XSLT is at the same time its problem. It
is very difficult to do the right thing. Just thinking and being careful and
checking the code 10 times does not help always...
Perhaps somebody has references of methodologies or books/papers written
about this problem. Does somebody know good websites that contain some
information about good practise and guidelines of doing good stylesheets? A
discussion is more than welcome and I think it would be right place to have
one....
Looking forward to interesting experiences, comments and suggestions.
Best Regards,
Karl
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