# Edit the command line using your usual editor.
# Binding this to 'v' in the vi command mode map,
#   autoload -Uz edit-command-line
#   zle -N edit-command-line
#   bindkey -M vicmd v edit-command-line
# will give ksh-like behaviour for that key,
# except that it will handle multi-line buffers properly.

() {
  exec </dev/tty
  ${=${VISUAL:-${EDITOR:-vi}}} $1
  print -Rz - "$(<$1)" 
} =(<<<"$PREBUFFER$BUFFER")

zle send-break		# Force reload from the buffer stack