JESS: =?ISO-8859-1?Q?Two_rules_don=B4t_fires?=

[Anderson de Rezende Rocha]

Hi all, I made a simple example to training in Jess and something
interesting has occurred. See below...

===================
(deftemplate id(slot name)(slot lastname))

(defrule regra-01
   ?fact <- (id(name mary)(lastname dechamps))
   =>
   (store name "dechamps, mary")
   (retract ?fact)
   (assert (id(name dechamps)(lastname mary)))
   ...
)

(defrule regra-02
   ?fact <- (id(name ?n)(lastname ?ln))
   =>
   (retract ?fact)
   (assert (id(name ?ln)(lastname ?n)))
   ...
)

(defrule increment
   ?cont <- (counter ?c&~10)
   =>
   (bind ?new-c (+ ?c 1))
   (assert (counter ?new-c))
   (printout t "counter now is " ?new-c crlf)
   (retract ?cont)
)

(defrule end_of_execution
   (counter 10)
   =>
   (halt)
)

(assert (id(name mary)(lastname dechamps)))
(assert (id(name desireh)(lastname fronchaw)))
(assert (id(name carmen)(lastname morris)))
(assert (counter 0))

(run)

===================

The problem is:
Only [increment] and [end-of-execution] fires. The rule1 and rule2 don�t
fires any time. What happens? What I forgot?

Thanks for help!


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