Function replace_example

examples/src/jsonpath_location_examples.cpp:117–166

since 0.174.0

// since 0.174.0
void replace_example()
{
    std::string json_string = R"(
{"books": [ 
    { "category": "reference",
      "author": "Nigel Rees",
      "title": "Sayings of the Century",
      "price": 8.95
    },
    { "category": "fiction",
      "author": "Evelyn Waugh",
      "title": "Sword of Honour"
    },
    { "category": "fiction",
      "author": "Herman Melville",
      "title": "Moby Dick",
      "isbn": "0-553-21311-3"
    }
  ] 
}
    )";

    json doc = json::parse(json_string);

    json new_price{13.0}; 

    jsonpath::json_location loc0 = jsonpath::json_location::parse("$.books[0].price");
    auto result0 = jsonpath::replace(doc, loc0, new_price);
    assert(result0.second);
    assert(result0.first == std::addressof(doc.at("books").at(0).at("price")));
    assert(doc.at("books").at(0).at("price") == new_price);
    
    jsonpath::json_location loc1 = jsonpath::json_location::parse("$.books[1].price");
    auto result1 = jsonpath::replace(doc, loc1, new_price);
    assert(!result1.second);
    
    // create_if_missing is true
    result1 = jsonpath::replace(doc, loc1, new_price, true);
    assert(result1.second);
    assert(result1.first == std::addressof(doc.at("books").at(1).at("price")));
    assert(doc.at("books").at(1).at("price") == new_price);

    jsonpath::json_location loc2 = jsonpath::json_location::parse("$.books[2].kindle.price");
    auto result2 = jsonpath::replace(doc, loc2, new_price, true);
    assert(result2.second);
    assert(result2.first == std::addressof(doc.at("books").at(2).at("kindle").at("price")));
    assert(doc.at("books").at(2).at("kindle").at("price") == new_price);
    
    std::cout << pretty_print(doc) << "\n\n";
}

void convert_normalized_path_to_json_pointer()
{