vim has an option to undo the vi way. "set cpoptions=u". There is a full set of vi-compatible options if you want them. "set cp" turns on full vi compatiblity.

Funny, I see vim as the vi that comes with UNIX, and never learned the enhancements, but I just tried it out and I don't have the compatibility option set. I don't seem to have noticed. I guess I don't do the "undo toggle" all that often.

    Mary Ann

make a new command, don't break the old one....  maybe offer a way to map the new one over the old -- but don't make it the default.

and my lawn was lush and green before the snow came ;-)

On Wed, Jan 8, 2020 at 9:07 PM Larry McVoy <lm@mcvoy.com> wrote:

On Wed, Jan 08, 2020 at 09:04:46PM -0500, Clem Cole wrote:
> On Wed, Jan 8, 2020 at 8:41 PM Bakul Shah <bakul@bitblocks.com> wrote:
>
> > The first thing I do on a new machine is to install nvi. Very grateful to
> > Keith Bostic for implementing it. I do use multiple windows ??? only
> > horizontal splits but that is good enough for me as all my terminal
> > windows are 80 chars wide. Not a vim hater but never saw the need.
>
> I pretty much do the same thing. I think what I hate about vim is that it's
> almost, vi but not the same. My fingers screw up when I use it.  For
> instance, he 'fixed' undo.   

Holy crap Clem, you need to embrace that.  His undo goes back forever.
And you can undo the undo and go forward forever. 

Not liking that puts you in the "get off my lawn" old guy camp.  Which
is fine if that's who you want to be (sometimes I'm that guy).