Ncurses and shortcuts in tty

Ncurses and shortcuts in tty

[fulvio marro]

The following code is supposed to open a ncurses program (ncmpcpp)
using Alt+\ in a tty
ncmpShow(){ ncmpcpp; }
zle -N ncmpShow
bindkey '^[\' ncmpShow
It works, but I can't interact with it.
It is the same if I try with other ncurses programs.
Nethack tells me "You must play nethack from a terminal"
I have put the code in /etc/zsh/zshrc
The analog bash code I have put in /etc/inputrc is
"\e\\":"ncmpcpp\n"
but zsh does not source /etc/inputrc, right?

Re: Ncurses and shortcuts in tty

[Frank Terbeck]

fulvio marro wrote:
> The following code is supposed to open a ncurses program (ncmpcpp)
> using Alt+\ in a tty
> ncmpShow(){ ncmpcpp; }

ncmpShow() {
  BUFFER="ncmpcpp"
  zle accept-line
}

> zle -N ncmpShow
> bindkey '^[\' ncmpShow
[...]
> but zsh does not source /etc/inputrc, right?

Zsh does not use the readline library. inputrc is a readline facility.

Regards, Frank

-- 
In protocol design, perfection has been reached not when there is
nothing left to add, but when there is nothing left to take away.
                                                  -- RFC 1925

Re: Ncurses and shortcuts in tty

[Bart Schaefer]

On Mar 3,  5:15pm, fulvio marro wrote:
}
} ncmpShow(){ ncmpcpp; }
} zle -N ncmpShow
} bindkey '^[\' ncmpShow
} It works, but I can't interact with it.

To expand a bit on Frank's answer, here you're executing ncmpShow from
inside a ZLE widget, which means ZLE is still "in control" of your
terminal -- it expects the widget to be doing something related to
editing the current command input.

What Frank's widget does instead is load ncmpShow into the ZLE command
buffer and then tell ZLE that command editing is finished (accept-line),
so ZLE relinquishes control and ncmpShow can take over.

If what you're wanting to do is run ncmpShow during the editing of a
different command line and then resume editing the command afterward,
you'll need a different solution.