#!/usr/bin/env zsh

eval "$_z4h_opt"
local word buf tail
repeat ${NUMERIC:-1}; do
  buf=$PREBUFFER$BUFFER
  for word in '' ${(Z:n:)buf}; do
    tail=${${buf:$#word}##[[:space:]]#}
    (( $#tail <= $#RBUFFER )) && break
    buf=$tail
  done
  CURSOR=$(($#buf <= $#BUFFER ? $#BUFFER - $#buf : 0))
done
return 0