code: def do_search(self, arg):
          
          token_list = self.split_tokens(arg, 1, 3)
          pid, tid   = self.get_process_and_thread_ids_from_prefix()
          process    = self.get_process(pid)
          if len(token_list) == 1:
              pattern = token_list[0]
              minAddr = None
              maxAddr = None
          else:
              pattern = token_list[-1]
              addr, size = self.input_address_range(token_list[:-1], pid, tid)
              minAddr = addr
              maxAddr = addr + size
          iter = process.search_bytes(pattern)
          if process.get_bits() == 32:
              addr_width = 8
          else:
              addr_width = 16
          # TODO: need a prettier output here!
          for addr in iter:
              print(HexDump.address(addr, addr_width))
docs: [~process] s [address-address] <search string>
          [~process] search [address-address] <search string>