Re: Removing \M-s binding

On Wed 24 Jul 2019 at 16:53 Ken Gunderson wrote:
> > > > Relatedly, \M-s is bound to wl-summary-stick (a very useful command) in
> > > > wl-summary-mode-map.  If WL's bindings should not override Emacs's
> > > > general bindings (and I think they shouldn't), perhaps that binding
> > > > should be changed too.
> > > 
> > > You are right except the case Wanderlust intendedly override.  The point
> > > is that which key should be bound to wl-summary-stick.  If there is no
> > > suggestion, I'm going to bind M-S to wl-summary-stick.
> > 
> > M-S is the same as M-s, so that still overrides Emacs's search-map
> > binding. s and S are already bound.
> > 
> > What about +?  + is currently not bound in wl-summary-mode-map, and it is
> > sort of an obvious choice.
> 
> Seems strange to me.  M-s is undefined on a freshly launched Emacs,

M-s is a global prefix key in vanilla Emacs.  It is bound to search-map in
bindings.el.  (M-x apropos-variable RET search-map RET)  E.g., M-s o is occur,
M-s w is isearch-forward-word, M-s h is itself a prefix for hi-lock's commands.

> sans any modes, unless I am in Wanderlust and in Summary buffer, in wh/case
> both M-s and M-S offer to stick summary buffer.  Makes total sense to me.  I
> don't understand the issue here?

Packages should not override default Emacs bindings.  I discovered the issue
when I wanted to run occur from a Summary buffer, and didn't understand why the
usual keybinding did not work.  Similarly, isearch-forward-word or hi-lock can
be useful in a Summary buffer.  Standard keybindings should work as expected by
the user.  In the Summary buffer, most commands are unmodified anyway.  In the
Folder buffer M-s is redundant.

If I'm not mistaken, the M-s binding is a somewhat recent addition to Emacs, so
Wanderlust might have had its M-s bindings first.

All the best,
Greg