#!/usr/bin/env zsh

local -i cursor=CURSOR
"$@"
emulate -L zsh

local -i from to
if (( CURSOR < cursor )); then
  from=CURSOR+1
  to=cursor
else
  from=cursor+1
  to=CURSOR
  CURSOR=$cursor
fi

if [[ $LASTWIDGET != ((z4h-|.|)(backward-|)kill-*|(.|)copy-region-as-kill) ]]; then
  zle .copy-region-as-kill -- $BUFFER[from,to]
elif (( CURSOR < cursor )); then
  CUTBUFFER=$BUFFER[from,to]$CUTBUFFER
else
  CUTBUFFER+=$BUFFER[from,to]
fi

BUFFER[from,to]=
zle -f kill