"positive lookaround" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de positive et de lookaround."
  ],
  "forms": [
    {
      "form": "positive lookarounds",
      "ipas": [
        "\\pɑ.zə.tɪv lʊk.ə.ˈɹaʊndz\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en anglais des expressions rationnelles",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Jeffrey E.F. Friedl, Regular Expressions: Understand Your Data and Be More Productive, O'Reilly Media, Inc., 8 août 2006",
          "text": "With positive lookaround, the construct, as a whole, is considered a success, and with negative lookaround, it's considered a failure."
        }
      ],
      "glosses": [
        "Regex de condition d'avoir obligatoirement quelque chose qui précède ou qui suit."
      ],
      "id": "fr-positive_lookaround-en-noun-yK9f-7HC",
      "raw_tags": [
        "Expressions rationnelles"
      ]
    }
  ],
  "word": "positive lookaround"
}

{
  "categories": [
    "Compositions en anglais",
    "Locutions nominales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Composé de positive et de lookaround."
  ],
  "forms": [
    {
      "form": "positive lookarounds",
      "ipas": [
        "\\pɑ.zə.tɪv lʊk.ə.ˈɹaʊndz\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire",
        "Lexique en anglais des expressions rationnelles"
      ],
      "examples": [
        {
          "ref": "Jeffrey E.F. Friedl, Regular Expressions: Understand Your Data and Be More Productive, O'Reilly Media, Inc., 8 août 2006",
          "text": "With positive lookaround, the construct, as a whole, is considered a success, and with negative lookaround, it's considered a failure."
        }
      ],
      "glosses": [
        "Regex de condition d'avoir obligatoirement quelque chose qui précède ou qui suit."
      ],
      "raw_tags": [
        "Expressions rationnelles"
      ]
    }
  ],
  "word": "positive lookaround"
}