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Re: [PRD] new version on Wiki

From: Gary Hallmark <gary.hallmark@oracle.com>
Date: Fri, 05 Feb 2010 07:30:58 -0800
Message-ID: <4B6C39B2.5030107@oracle.com>
To: Christian De Sainte Marie <csma@fr.ibm.com>
CC: public-rif-wg@w3.org
ok.

Christian De Sainte Marie wrote:
>
> Hi Gary,
>
> Gary Hallmark <gary.hallmark@oracle.com> wrote on 05/02/2010 07:37:50:
> >
> > replace "consists in" with "consists of".
> > replace "that have been applied the following syntactic normalization:"
> > with "that have been normalized as follows:"
> >
> > replace "group group" with "group"
>
> Done.
>
> > Bigger issues:
> >
> > the EBNF lets me write "Retract(?X "all")". The "all" doesn't make 
> sense
> > here.
>
> Right. I realized that I had to change the EBNF just before I sent the 
> email, and I did that a bit too fast.
>
> It should have been something like:
>
> Retract ::= 'Retract' '(' ( Atom | Frame "all"? | Var | Const ) ')'
>
> > If I do want to retract all values for a given frame slot _S, I guess I
> > would write
> > "Retract(?O[_S->"I can put anything here which is odd."] "all")"
>
> I agree that using a whole frame where we need only a frame object and 
> a slot is odd; esp. since we do not have pattern variables in PRD. I 
> did it that way to minimize the changes (e.g. keep the reference to 
> the target unchanged etc).
>
> Still, I would prefer to overload the existing Retract, rather than 
> add a whole new construct. What about:
>
> Retract ::= 'Retract' '(' ( Atom | Frame | Var | Const | TERM TERM ) ')'
>
> And, for the XML syntax (where the "ordered" attribute is required 
> only in when the TERM TERM syntax is used):
>
> <Retract>
> <target ordered="yes"?> [ */Atom/* | */Frame/* | */TERM/* | */TERM 
> TERM/* ] </target>
> </Retract>
>
> Cheers,
>
> Christian
>
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Received on Friday, 5 February 2010 15:32:49 GMT

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