The following runs as I'd expect in Jess 4.1 final:
(deftemplate OBJECT (multislot names))
(assert (OBJECT (names A B C)))
(defrule test-rule
(OBJECT (names $?x))
=>
(bind ?size (length$ $?x))
(bind ?first (nth$ 1 $?x))
(printout t ?size " " ?first crlf))
;; prints "3 A"
Can you be more specific?
I think Venkat wrote:
>
> Hi,
>
> The following multifield functions work well under CLIPS but
> not with JESS - however, no errors are reported in Jess.
> Code snippet :
> ...
>
> (OBJECT (names $?x)) - defined suitably with multislot for names
> ...
> ...
>
> (bind ?size (length $?x))
>
> (bind ?first-name (nth 1 $?x))
>
> I have tried (bind ?size (length$ ?x)) which gives the same response - no
> errors reported but does not work as expected.
>
> Any information will be useful.
>
> Venkat
>
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