Re: Can we decode CSI u escape sequences?

[Johannes Altmanninger]

On Wed, Apr 20, 2022 at 10:58:45AM -0400, Chet Ramey wrote:
> On 4/18/22 3:35 PM, Johannes Altmanninger wrote:
> > CSI u escape sequences allow to use modifiers like control/shift/alt with 
> > any
> > key (for example it allows to map Control-2 and Control-Space 
> > independently).
> > Today, users can bind them using ugly sequences ("\033[50;5u").
> > I think it would be nice if readline could decode these sequences (so we
> > can say "Control-2").
> 
> I think I'll wait until more terminal emulators support this.

Fair enough. For the record, xterm emits at least some CSI u sequences with
this configuration

        xrdb << EOF
        XTerm.vt100.formatOtherKeys: 1
        XTerm.vt100.modifyOtherKeys: 1
        EOF

Sadly, having a shell enable CSI u is a bad idea because child processes
probably can't handle them..