bug#37769: global-set-key wrongly downcases the typed key (e.g. S-tab).

[Lars Ingebrigtsen <larsi@gnus.org>]

Eli Zaretskii <eliz@gnu.org> writes:

> I admit I don't understand what both of you think is not good or make
> no sense.  Emacs has been downcasing keys since day one, if the upper
> case has no binding.  The reason is to allow the user not to have to
> release the Shift key too fast when typing fast.

The complaint is that the interactive spec of global-set-key downcases
whatever the user enters.

M-x global-set-key RET C-S-o

will bind C-o, not C-S-o.  (Well, the case in question was about TAB,
aka C-i, but...)  This is surprising, and should be fixed, I think (and
the patch suggested fixes this).

I entered the discussion because I thought that this would be a bad
change on ttys, because Emacs would then go ahead and bind the `C-S-o'
key -- which then couldn't be used by the user, because there's no way
to use shifted control keys under a tty.  At least I don't think so?

If this is the case, I think the original patch should be applied, but
if we're running in an environment where `C-S-o' can't be entered (i.e.,
not on a gui), then the command should error out or give a warning, at
least.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no