Re: [rules-users] Prefix 'and' and infix 'and' not interchangeable?
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(a)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(a)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(a)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
Attachments:
- attachment.html (text/html — 4.5 KB)