bug#36879: 26.2; OSC 52 paste in term/xterm.el not working

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> - The feature is fundamentally dodgy from a security perspective.
> I'm probably missing something obvious, but how is talking to xclip more
> secure than talking to the terminal emulator? Or is the "security
> perspective" somewhere else?

I remember various attack vectors.  They're not necessarily trivial
to exploit, but it's still problematic (which is likely why it's
disabled by default in Debian's build).

>> So I'm not sure it's worth the trouble supporting this, really:
>> In many/most cases `xclip-mode` can be used instead, and is much
>> more straightforward.
> Except that xclip assumes x11.

I'm talking about xclip-mode, not xclip.

> (before I tried this, OSC 52, I was using
> https://github.com/bugaevc/wl-clipboard with my own Emacs "bindings" - yes,
> I'm on Wayland)

xclip-mode also has code to support wl-clipboard (I never tested it, tho).

> Would it not make sense to support a window protocol agnostic method?
> By supporting OSC 52, you support whatever clipboard mechanism the
> terminal emulator supports.

It has its advantages, of course.  But also its downsides.
The overlap with xclip-mode is fairly large, tho.


        Stefan