[rules-users] Prefix 'and' and infix 'and' not interchangeable?

[Edson Tirelli]

    Actually, I just understood the problem.
    The "not" CE requires () when used with anything that is not a simple
pattern. So the following are valid constructions:

not A()
not( A() and B() )

   Now, if you want to use a prefixed "and"/"or", it also requires a (). So
the following is a valid construction:

not( (and A() B() ) )

   So, the proposed construction is not valid for current grammar, because
it is missing one pair of ():

not( and A() B() ) // WRONG

    Now, I do think it would be desirable for us to support the above
construction, so if you open a ticket for that I will look into enabling it.

    []s
    Edson

2008/1/15, Edson Tirelli <tirelli at post.com>:
>
>
>     This is a bug. May I ask you please to open a JIRA for it?
>
>     Thanks
>        Edson
>
> 2008/1/15, Gattiker, Alexandre < Alexandre.Gattiker at generali.ch>:
> >
> > The documentation on the 'and' Conditional Element seems to imply that
> > these constructs are equivalent:
> >
> >                 $p1:Entity($code1:code)
> >                 not (and
> >                         $p2:Entity(code == $code1)
> >                          eval(MyStaticClass.match($p1, $p2))
> >                 )
> >
> >                 $p1:Entity($code1:code)
> >                 not (
> >                         $p2:Entity(code == $code1)
> >                         and eval(MyStaticClass.match($p1, $p2))
> >                 )
> >
> > Actually, the first version crashes with this message:
> >
> > unknown:93:7 Unexpected token 'and'[96,2]: unknown:96:2 mismatched
> > token: [@792,3685:3685=')',<12>,96:2]; expecting type THEN
> >
> > I'm on drools 4.0.2 and mvel14-1.2.8.
> >
> > Alexandre
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
>
>
>
> --
>   Edson Tirelli
>   JBoss Drools Core Development
>   Office: +55 11 3529-6000
>   Mobile: +55 11 9287-5646
>   JBoss, a division of Red Hat @ www.jboss.com




-- 
  Edson Tirelli
  JBoss Drools Core Development
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com
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