关于es正则表达式搜索的问题

(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])

      {

        "_index": "test",

        "_type": "_doc",

        "_id": "RKTbvW0BtZvIlit_5zmZ",

        "_score": 1,

        "_source": {

          "data": """

'27'

'255.255.255.240' => '28'

'255.255.255.248' => '29'

'255.255.255.252' => '30'

'255.255.255.254' => '31'

'255.255.255.255' => '32'

test

"""

        },

        "highlight": {

          "data": [

            """

'27'

'<em>255.255.255.240</em>' => '28'

'<em>255.255.255.248</em>' => '29'

'<em>255.255.255.252</em>' => '30'

'<em>255.255.255.254</em>'

""",

            """

=> '31'

'<em>255.255.255.255</em>' => '32'

test

"""

          ]

        }

      }