RE: question about Meta + Shift modifiers: M-S-r and M-R

[Drew Adams]

> > The point is that (kbd "M-S-r") binds a key that
> > no one can ever type.
> 
> Just like S-r

Yes, same problem.  I stand corrected that Meta is relevant here.

Same suggested fixes and workaround (`M-' removed from the quote):

> Either (a) have `kbd' or `define-key' reject such impossible key
> sequences or (b) allow `S-r' as an additional external
> representation (for `kbd') equivalent to `R', i.e., automatically
> translate it in `kbd'.  Maybe there are other, better proposals.
>
> A workaround for the problem, if you decide not to fix it, is to
> try to dispel confusion by covering it explicitly in the Elisp manual.