Re: gnubol: COBOL Grammar Nucleus Level 2 with error productions

[Fred Mobach <fred@mobach.nl>]

Tim Josling wrote:

> I've added error productions to the grammar at timjosling.homepage.com. Basically
> I am rcovering at full stops, and prior to the next verb.
>
> This means that
>
> IF error
>    display
> ELSE
>    display
> END-IF
>
> Will produce errors at the ELSE and END-IF. I haven't been able to produce error
> productions that don't produce zillions on grammar conflicts to deal with these
> situations.

The same behavior is still shown by some mainframe compilers, e.g. Siemens and Bull.

Regards,

Fred Mobach




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