class Reline::LineEditor

def ed_delete_prev_word(key)

def ed_delete_prev_word(key)
te_pointer > 0
_size, width = Reline::Unicode.em_backward_word(@line, @byte_pointer)
e, word = byteslice!(@line, @byte_pointer - byte_size, byte_size)
l_ring.append(word, true)
e_pointer -= byte_size
sor -= width
sor_max -= width