Re: zle kill-region without mark consider start of line as mark

[Hadrien Lacour <hadrien.lacour@posteo.net>]

On Wed, Nov 15, 2017 at 11:24:37AM +0000, Peter Stephenson wrote:
> On Wed, 15 Nov 2017 11:40:34 +0100
> Hadrien Lacour <hadrien.lacour@posteo.net> wrote:
> > I have `bindkey -M emacs '^W' kill-region` in my zshrc and using it without
> > having set any mark will cut from the beginning of the line to the cursor.
> > I've tried to read zle's doc but found no mention of this behaviour.
> >
> > Any idea about what's happening and how to do nothing if the mark isn't set?
>
> Internally, there is actually no notion of the mark not being set ---
> it's simply initialised to zero, and moved when ask it to be set.
> Therefore, if you try and use it, it appears as if it's at the start of
> the line.
>
> The documentation doesn't make this explicit.  It could do with
> mentioning the default state.
>
> pws

Thanks, that's what I supposed too. I almost have it fixed with

markset=
my-set-mark()
{
    zle set-mark-command
	    markset=true
		}

my-kill-region()
{
    [ $markset ] && zle kill-region
	}

zle -N my-kill-region
zle -N my-set-mark

bindkey -M emacs '^@'       my-set-mark
bindkey -M emacs '^W'       my-kill-region


But I don't know how to reset markset every newline (other than doing an ugly
bindkey for Return).