RE: (no subject) -- RPG400-L

Aaron,

I'm pretty sure eval is optional in the free form spec's.

Scott Mildenberger

> -----Original Message-----
> From: Bartell, Aaron L. (TC) [mailto:ALBartell@taylorcorp.com]
> Sent: Friday, September 21, 2001 10:08 AM
> To: 'rpg400-l@midrange.com'
> Subject: RE: (no subject)
>
>
> So in the new free form specs we are still required to use
> eval?  Wouldn't
> it be nice to do the following
> InvoiceVariable = InvoiceFromFile
> instead of
>
> eval InvoiceVariable = InvoiceFromFile
>
> Aaron
>
> -----Original Message-----
> From: Jim Langston [mailto:jlangston@celsinc.com]
> Sent: Friday, September 21, 2001 11:07 AM
> To: rpg400-l@midrange.com
> Subject: RE: (no subject)
>
>
> RPG doesn't use brackets { } or other statement groupers,
> thank goodness.  Since RPG doesn't use statmenent groupers, it
> needs definate end of statement terminators.
>
> This isn't C, like Hans said.  If you want to program in C,
> program in C (I do at home).  This is RPG, or whatever RPG is
> becoming.  Do we really want another C clone?  I don't think so.
>
> Remember, you should be able to code your example:
>   IF   A=B;
>   Eval  X = C * D;
>   Else;
>   X = C * B;
>   Endif;
>
> as
>
>   IF   A=B;  X = C * D;
>   Else;      X = C * B;
>   Endif;
>
> in theory if you wanted to (I wouldn't but you could), although
> I'm not certain "they"ve taken freeform that far yet.  (Took me
> a little scratching of my head before I realized you stuck an
> Eval in there <g>).
>
>
> Regards,
>
> Jim Langston
>
> -----Original Message-----
> From: rpg400-l-admin@midrange.com
> [mailto:rpg400-l-admin@midrange.com]On
> Behalf Of Bob Cozzi (RPGIV)
> Sent: Friday, September 21, 2001 6:30 AM
> To: rpg400-l@midrange.com
> Subject: RE: (no subject)
>
>
> Hans,
>
> No offense, but yes, this was the first example I've seen of the free
> form stuff. I had seen something in the manual, but it was mostly
> contrived and not clear enough.
>
> Sure I noticed and accepted a semi colon after the CHAIN or
> EVAL or most
> other operation codes. But looking at the code posted here,
> and seeing a
> semi colon after the IF conditional statement, cause me to do a double
> take.
>
>   IF   A=B;
>   Eval  X = C * D;
>   Else;
>   X = C * B;
>   Endif;
>
>
> It just seems unnatural to me. I would have expected the parse to have
> been able to determine the end of the conditional clause and
> then accept
> a "command" statement next. Which of course, could be on the
> next line.
> That command statement would then be followed by a semi
> colon.  The same
> holds true for the ELSE, SELECT, WHEN, ELSEIF statements. I
> guess there
> would be ambiguity on the ENDxx statement (to semi colon or
> not to semi
> colon <g>).
>
> I suppose the syntax you have is adaptable to the alterations
> (enhancements?) that I'm suggesting here, since it would continue to
> work if you added this change.
>
> Hans, as I stated publicly before, I think IBM did a good enough job
> (save this recent discovery) with the free-form syntax. It is much
> better than any of the previously viewed "grammas" that I saw.
>
> Of course since you apparently don't like to hear my comments, you've
> decided to no longer keep me in the early review loop, so
> don't blame me
> if I'm seeing things here for the first time.
>
> As to the C language, well RPG IV is still my favorite, with
> C++ a close
> second. I don't think I write in plain old C anymore, but I
> suppose C++
> is syntactically similar. Just because one language does something
> questionable (like the lack of garbage collection) doesn't justify it
> being implemented in another language. Its funny you use my
> platform for
> why RPG IV did NOT need free form ("if you like C, use it") I've been
> saying that for 10 years. Glad to read you're quoting me on something.
> <vbg>
>
>
> Bob Cozzi
>
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