RE: [External] : mark multi regions, kill and yank

[Drew Adams <drew.adams@oracle.com>]

> The multi-region looks very much what I need,
> but the kill operation only works for one marked
> region and append-next-kill does not work with
> this package (which is very old, it is a miracle
> that it somehow still works, well it is Emacs
> of course)

You can show the current set of zones, in
various ways (e.g., highlight/unhighlight),
so you can easily see what you're acting on.

You can define a command that deletes or
kills the text in a set of zones.

It's easy to define any actions you want
on a set of zones (or on selected zones).
See, for example, functions `zz-do-izones'
and `zz-map-izones':

 Map FUNCTION over IZONES, applying it to each izone.
 IZONES is a list like `zz-izones', that is, zones with identifiers.
 IZONES defaults to the value of the variable that is the value of
 `zz-izones-var'.
 Non-nil optional arg UNITE-P means first unite the zones and then
 iterate over the resulting list.

Some common vanilla-Emacs commands that
act on the region work out of the box on
a noncontiguous region.  There are similar
commands that work on a set of zones. E.g.

`zz(-map)-query-replace(-regexp)-zones', 
`zz-replace-(string|regexp)-zones'

E.g. `C-x n M-%' does `query-replace' on
the zones in the current buffer.

Pretty much anything you can do with the
Emacs region you can do with a set of zones
(i.e., with a non-contiguous "region").

But most existing Emacs commands that act on
the region don't know about non-contiguous
regions.  What you will need to do is define
new commands that take them into account.

> > If you don't want to kill the regions, and you
> > just want to copy them together (concatenated)
> > to the kill-ring, you can use library zones.el
> > for that....
> 
> Ok thanks for pointint that out I will have look
> and for sure use the function you provided below