Thanks! (was: CF-Spec - another call for opinions)

[boldt@xxxxxxxxxx]

Thanks for your responses, everyone!  The discussion
has been very useful for us, with some responses very
close to what we've come up with.

We've done a bit more brainstorming, and we think we've
hit on another alternative that we think everyone will
be happy with.  In a nutshell, we believe that we can
achieve release to release compatibility with two
changes to our design:

1) Require parens always on CALLP statements on the
   CF-Spec; and
2) Delimit opcode extenders on the CF-Spec using some
   different character other than parens, such as the
   colon.

Basically, if the first string of characters in the spec
is followed by "(", it is either an EVAL or CALLP; by
"=", it is an EVAL; otherwise, it is an opcode.

So, here's what our toy example looks like:

    CF KeepLooping = *ON
    CF dow KeepLooping
    CF    read:e MasterFile
    CF    if %eof
    CF       HandleEndOfFile()
    CF    endif
    CF enddo

Cheers!  Hans

Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com


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