If this works, as it appearently does, then the manual should be updated to
remove the following quote:
"Only allows constructs to be evaluated."
since "(facts)" isn't a construct - at least I don't think it is...
Also, the docs on (eval ...) also state that only functions can be called.
Is this statement true? BTW - what part of the jess language *isn't* a
function?
alan
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]
Sent: Monday, June 11, 2001 5:21 PM
To: Thomas Gentsch
Cc: Jess
Subject: Re: JESS: Debug rule
The example you give here works fine for me in Jess 6.0a6 (see below.)
What version of Jess did you try it with?
----------------------------------------------------------------------
[ejfried@cp96277-a unit_tests]$ java jess.Main
Jess, the Java Expert System Shell
Copyright (C) 1998 E.J. Friedman Hill and the Sandia Corporation
Jess Version 6.0a6 5/3/2001
Jess> (deftemplate TgeFact (multislot text))
TRUE
Jess> (defrule exec-itm_command-string
(declare (salience 10000))
?f <- (TgeFact (text TGE-Command: ?cmd))
=>
(build ?cmd)
(retract ?f) )
TRUE
Jess> (watch all)
TRUE
Jess> (assert (TgeFact (text TGE-Command: "(facts)")) )
==> f-0 (TgeFact (text TGE-Command: "(facts)"))
==> Activation: exec-itm_command-string : f-0
<Fact-0>
Jess> (run)
FIRE 1 exec-itm_command-string f-0
f-0 (TgeFact (text TGE-Command: "(facts)"))
For a total of 1 facts.
<== f-0 (TgeFact (text TGE-Command: "(facts)"))
1
Jess>
I think Thomas Gentsch wrote:
>
> Hello,
>
> I wanted to create a rule as some kind of an debugging-aid which allows
> me to submit facts that are interpreted as regular commands.
> I tried the following in different variations but can't get it to work
> as expected:
>
> (defrule exec-itm_command-string
> (declare (salience 10000))
> ?f <- (TgeFact (text TGE-Command: ?cmd))
> =>
> (build ?cmd)
> (retract ?f)
> )
>
> and asserted e.g.
> (TgeFact (text TGE-Command: "(facts)"))
>
> Nothing happens. Similraly I tried out (eval ) and multifields for ?cmd
> (passed as (explode$ ?cmd) of course.
> Is there any nice way how to accomplish that?
>
> Thanks a lot,
> tge
>
> --
> Thomas Gentsch
>
---------------------------------------------------------
Ernest Friedman-Hill
Distributed Systems Research Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
Org. 8920, MS 9012 [EMAIL PROTECTED]
PO Box 969 http://herzberg.ca.sandia.gov
Livermore, CA 94550
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