Function parent_operator_example

examples/src/jsonpath_examples.cpp:727–756

}

void parent_operator_example() 
{
    std::string doc = R"(
[
    {
      "author" : "Haruki Murakami",
      "title": "A Wild Sheep Chase",
      "reviews": [{"rating": 4, "reviewer": "Nan"}]
    },
    {
      "author" : "Sergei Lukyanenko",
      "title": "The Night Watch",
      "reviews": [{"rating": 5, "reviewer": "Alan"},
                  {"rating": 3,"reviewer": "Anne"}]
    },
    {
      "author" : "Graham Greene",
      "title": "The Comedians",
      "reviews": [{"rating": 4, "reviewer": "Lisa"},
                  {"rating": 5, "reviewer": "Robert"}]
    }
]
    )";

    jsoncons::json store = jsoncons::json::parse(doc);

    std::string path = "$[*].reviews[?(@.rating == 5)]^^";
    auto result = jsonpath::json_query(store, path);
    std::cout << pretty_print(result) << "\n\n";
}

template <typename Json>
class my_custom_functions : public jsonpath::custom_functions<Json>