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

[Eli Zaretskii]

> From: Tino Calancha <tino.calancha@gmail.com>
> Cc: 27634@debbugs.gnu.org, Paul Rankin <hello@paulwrankin.com>, Andreas 
> Schwab <schwab@suse.de>, Eli Zaretskii <eliz@gnu.org>, Tino Calancha 
> <tino.calancha@gmail.com>
> Date: Fri, 21 Jul 2017 15:19:03 +0900
> 
> Allen Li <vianchielfaura@gmail.com> writes:
> 
> > It sounds like there's a general consensus on how to fix this.  Tino, would 
> > you care to post a finalized patch?
> OK.
> > Note: bug#25370 is a duplicate of this, it should probably be marked 
> > closed, wontfix, etc.
> Thanks, i merged this thread with your bug report.
> 
> Let's discuss following patch:
> 
> *) Call `keyboard-quit' whenever last-input-event is
>     ?\C-g or 'escape or ?\C-\[.
> 
> **) Updated the manual to point out that non-alphanumeric
>     keys are valid to store registers as well.

Looks good, thanks.  (I didn't test the code, but I assume you did.)