Re: Discrepancy in definition/use of match-data?

["Stephen J. Turnbull" <stephen@xemacs.org>]

>>>>> "David" == David Kastrup <dak@gnu.org> writes:

    David> Now the obvious solution to that would be to make
    David> unsuccessful matches void the match-data, too.  I myself
    David> have no recollection of any discussions about this, but
    David> Stephen Turnbull was pretty vocal about having proposed
    David> something like this,

To be precise, I tried it in a workspace and was immediately slapped
down by a regression test failure.

    David> What I'll do right now is just changing the condition that
    David> it will not flag an error for greater-than-encountered
    David> match-data indices, except for the case of completely void
    David> match-data where I'll still flag an error.

I would suggest improving the error message if at all possible, and
documenting this prominently, as it is likely to happen very rarely,
and then only in asynchronous calls.


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