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Hans,

Doesn't PL/I allow this already? It has been a while, and I don't recall,
does PL/I have reserved names? That's the direction in which this train
should moving if I can't derail it.

Bob Cozzi

http://www.RPGIV.com




> -----Original Message-----
> From: owner-rpg400-l@midrange.com [mailto:owner-rpg400-l@midrange.com]On
> Behalf Of Douglas Handy
> Sent: Wednesday, August 11, 1999 7:27 PM
> To: RPG400-L@midrange.com
> Subject: Re: CF-Spec - another call for opinions
>
>
> Bob,
>
> > I definitely want a vote AGAINST option 4!!!
>
> Hey, Bob, you found something we can agree on regarding CF!  Option 1
> would be (IMHO) much preferable than option 4.  I don't like option 3
> either, as it could lead to some unnatural future opcodes.
>
> I still like option 2 best, and think that implied EVAL and CALLP can
> be unambiguously determined from the context in almost every case.
>
> I think the only ambiguous context would be an implicit CALLP to a
> subprocedure with no agruments passed, where the name matched a
> current or future opcode with no operands.  (Such as Iter or Leave.)
> This is why I suggested appending () to ensure it would continue to
> always be recognized as a subprocedure call regardless of future
> opcodes.
>
> Note that new opcodes which require operands (i.e., almost every one)
> would still not be ambiguous since the presence/abscense of "=" vs
> operands vs arguments would allow you to easily determine if you are
> dealing with an opcode, target variable, or subprocedure name.
>
> Doug
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