class Reline::LineEditor
def ed_delete_prev_char(key, arg: 1)
def ed_delete_prev_char(key, arg: 1) d = '' mes do cursor > 0 te_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer) yte_pointer -= byte_size ine, mbchar = byteslice!(@line, @byte_pointer, byte_size) leted.prepend(mbchar) dth = Reline::Unicode.get_mbchar_width(mbchar) ursor -= width ursor_max -= width or_vi(deleted)