small proposition for _q_lookup

Because I'm an "heavy" user of _q_lookup, I would
propose an improvement.

Why not having the possibility to split the path into
several variables ?
 
Let's take an example:

class Calendar(Directory):
   def _q_lookup(self,year,month,day=1):
       .....

Then, the url:
http://localhost/calendar/2005/07/20
will populate the variable year, month and day
respectively to 2005, 07, 20

Then, the url:
http://localhost/calendar/2005/07
we will have year=2005, month=07 and day=1


Does there is an interest for this (I think yes) ?
Would it be difficult to have such in Quixote ?

or

do you prefer to continue with somethink like:
Class Calendar(Directory):
   def _q_lookup(self,comp):
       day=1
       month=1
       for i, value in enumerate(comp.split('/')):
           if i==0: year=value
           if i==1: month=value
           if i==2: day=value


Thanks

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