I think Diesler,Thomas wrote:
> hallo,
>
> Jess responds with an error when (assert-string ...) is called twice with
> the same argument.
>
> Workaround: call retract-string before assert-string (just in case)?
>
> Jess> (assert-string "(foo bar)")
> <Fact-0>
> Jess> (assert-string "(foo bar)")
> Jess reported an error in routine Value.factValue
> while executing (assert-string "(foo bar)").
> Message: Not a fact: "FALSE" (type = ATOM).
I agree that this is not the correct behavior -- I'll fix it. Thanks
for the report.
A better workaround, for now, would be to catch and hide the
exception (Jess errors are always Java exceptions:)
(try (assert-string "(foo bar)") catch)
-or-
(deffunction safe-assert-string(?string)
(try (assert-string ?string) catch))
---------------------------------------------------------
Ernest Friedman-Hill
Distributed Systems Research Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
PO Box 969, MS 9012 [EMAIL PROTECTED]
Livermore, CA 94550 http://herzberg.ca.sandia.gov
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