On Sat, Sep 12, 2020 at 12:22:23PM -0700, Eliot Miranda wrote:
> On Sat, Sep 12, 2020 at 10:43 AM David T. Lewis <lewis at mail.msen.com> wrote:
> 
> > On Sat, Sep 12, 2020 at 06:57:03PM +0200, Tobias Pape wrote:
> > >
> > > > On 12.09.2020, at 16:31, Eliot Miranda <eliot.miranda at gmail.com>
> > wrote:
> > > >
> > > > With the REPL image if it starts up and evaluates an expression of two
> > (which are not logged) and then quits nothing has changed but the QUIT/NO
> > SAVE has been written, and now my reproducible image/changes pair is no
> > longer in exactly the same state; the changes file has grown.
> > > >
> > >
> > > In that particular case, wouldn't it suffice to just make the Changes
> > file read-only?
> > >
> >
> > Just exit with Smalltalk quitPrimitive. It's perfectly safe on unix.
> >
> 
> That's hardly the point.  The REPL should work on any platform with a
> command line, Windows included. And e.g. LibTerm.app even gives me a
> command line on my iPhone ;-)
> And it *won't* safe in a system a little more advanced than we have now
> where ephemerons are used for output streams and we want them to be
> automatically flushed on exit.
> 
> 
> It is possible to get this right.


No disagreement on any of that :-)

Dave

> 
> Dave
> >
> 
> 
> -- 
> _,,,^..^,,,_
> best, Eliot

>