Re: gnubol: How do we parse this language, anyway?

[Randall Bart <Barticus@att.net>]

At 11:09 AM 11/28/99 , Tim Josling wrote:
>add
>     size
>         subtract
>             not size
>                display.
>
>How would you specify both size and not size for a verb? The only way you 
>seem to
>be end-verb for the nested verbs. But end-verb existed only since cobol 
>85, and
>size/not size from memory predate this. So this interpretation would break
>existing code. Which is not likely to be correct.
>
>Thus I predict the not size will bind to the add.

The NOT conditional phrases were introduced in Cobol-85, along with the 
scope terminators.  The NOT SIZE will bind to the SUBTRACT.  To get it to 
bind to the ADD, you need END-SUBTRACT (which is why the optional END-x is 
allowed on imperative verbs.

At 11:50 AM 11/28/99 , Michael McKernan wrote:

>   Randall> I disagree.  The only certification there ever was was
>   Randall> FIPS certification.  Some of the FIPS tests verified that
>   Randall> errors were issued for invalid statements like the
>   Randall> foregoing.
>
>A little too much hyperbole in the heat of battle.  Yes, I remember
>some tests like that, but these cases escaped them, or else the '85
>compiler that I worked on would not have been certified.  It's quite
>possible that my statement is true, though, since the audits were an
>open book, and no one invited the auditor before having run them a few
>hundred times.

The compiler probably has a FIPS flagging compile time option.  Try to 
compile with FIPS flagging set to level 4 and see if you get a warning.

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