OT: ICFP 2001 (xsl solution?)

Piers Haken writes:
 > For purely academic reasons I'm interested if anyone can come up with a
 > solution for this year's "International Conference on Functional
 > Programming 2001 Programming Contest" which basically involves
 > transforming some XML. I'm more interested in whether it's possible to
 > get optimal (or good) results cleanly rather than a messy/fast/identity
 > transform. I'd do it myself, but it makes my head hurt.
 > 
 > Here's the link:
 > http://cristal.inria.fr/ICFP2001/prog-contest/task.html
 > 
 > Piers.
 > 
 > PS. Extra credit: submit an XSL-based entry to the competition! ;-)

The input language isn't valid XML, there are tags whose names start
with digits.


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