bug#27634: 25.2.1; C-g does not quit register-read-with-preview

[Paul Rankin]

On Wed, 12 Jul 2017, at 12:36 AM, Eli Zaretskii wrote:
> I believe the user expectations by now are that any character should
> do.  We want to exempt C-g and ESC ESC in order to allow the user to
> bail out, but other than that, I see no reason to add restrictions
> where they aren't needed.  "Alphanumeric" these days means much more
> than just ASCII, and we have no reasons I can see to restrict users to
> ASCII, certainly not after so many years of the current behavior.
> 
> > One overlooked thing about Tino's solution is that C-g is a keystroke and 
> > keyboard-quit is a function, which obviously aren't necessarily equivalent. 
> > What if the user remaps keyboard quit to "7"?
> 
> As Andreas points out, only quit char is important.  If we want to be
> holier than the Pope, we could look at its value by calling
> current-input-method.  I don't object to such an extension.

Looks like you guys have this under control 👍