On Jul 3, 2008, at 1:29 PM, Henrique Lopes Cardoso wrote:
Now, I understand the error. But maybe Jess should be nicer by
noticing
that if the comparison cannot be made, then it should simply not fire
the rule (quietly).
In general, you can just use a more appropriate default for the
I have a similar situation but I wanted to be able to distinguish NIL
cases. I used the defadvice to wrap the various numeric comparison
operators to handle this in the way I wanted. In my case, I treat NIL
as unknown and all of the tests fail (e.g. NIL is neither greater,
less, or equal to any
