Re: Comint Completion Broken

[Herbert Euler]

> From: Miles Bader <address@hidden>
> Reply-To: Miles Bader <address@hidden>
> To: Romain Francoise <address@hidden>
> CC: Herbert Euler <address@hidden>, address@hidden
> Subject: Re: Comint Completion Broken
> Date: Fri, 19 May 2006 15:18:17 +0900
>
> Romain Francoise <address@hidden> writes:
> >>   Typing a SPC deletes the completion window, typing anything else
> >>   leaves the completion window in place.  [This seems like reasonable
> >>   behavior -- fairly often I _want_ to leave the window in place, so I
> >>   can select it and do more advanced searching or whatever.]
> >
> > The window used to get deleted automatically on key events, e.g.
> >
> >      u p TAB (window appears) t (window disappears) TAB
> >  =>  uptime
> >
> > But that was apparently an accidental feature, and it caused a bug when
> > selecting completion candidates with mouse-1 in the window:
>
> My memory is a bit fuzzy, but as I recall, the "really old" behavior
> (what was in Emacs 21) was more or less the same the current behavior.
>
> I'm not entirely sure of the whole ugly history after that, but for a
> while, I think pcomplete was used for comint completion, which had the
> "window always gets deleted" behavior.  [but I can't find any record of
> this in the  ChangeLog, so maybe it's just an illusion I had???]
>
> Whether or not it's due to pcomplete, until fairly recently comint
> seemed to be doing the "window always gets deleted" thing, which was
> extremely annoying; I'm assuming that's what Nick fixed.
>
> Anyway, the current behavior seems both user-friendly and compatible
> with Emacs 21.  So I'd say things are in a good state.

Well, in my opinion, deleting completion window automatically is
more user-friend.  Perhaps one wants completion always at hand,
but if one has already finished inputing (indicated by inserting
a unique string in completion window or typing SPC), the
completion window should be deleted automatically.  Otherwise,
one have to type C-x 1 to delete the completion window manually,
which is a bit boring.

And the most user-friend method seems to be, the completion
window gets updated and finally deleted as user inputing.

Regards,
Guanpeng Xu

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