Re: Extend tabulated-list-mode to support marks

[Yuri Khan]

On Sat, 25 Jul 2020 at 21:23, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>
> >> > and (2) if maybe tabulated-list-mode would benefit from a generic
> >> > implementation of multiple marking, unmarking, marking-for-deletion,
> >> > and command application.
> >>
> >> Maybe "for deletion" is too application-specific (some uses of
> >> `tabulated-list-mode` can't "delete" or at least not conveniently enough
> >> that it's a common use case), but a definite +1 for the rest.
> >
> > My point is that there are many instances of a generic scenario:
>
> Fully agreed.  I was just pointing out that to keep it generic it might
> be better to start with limiting it to support "mark/unmark" and "apply
> command to marked elements" without presuming that "deletion" might be
> such a command (e.g. in package.el I'm not sure "deletion" makes a lot
> of sense since most of the entries listed reflect the existence of
> something on a remote server that's not under the user's control).

Fair enough. Given a generic marking facility, derived modes can just
treat deletion as one kind of a mark.