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@@ -94,13 +94,81 @@ The library uses the following mapping from JSON values types to UBJSON types ac
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??? example "Example: serialize JSON values to UBJSON, with and without size/type optimization"
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```cpp
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--8<-- "examples/to_ubjson.cpp"
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#include <iostream>
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#include <iomanip>
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#include <nlohmann/json.hpp>
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using json = nlohmann::json;
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using namespace nlohmann::literals;
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// function to print UBJSON's diagnostic format
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void print_byte(uint8_t byte)
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{
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if (32 < byte and byte < 128)
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{
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std::cout << (char)byte;
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}
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else
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{
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std::cout << (int)byte;
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}
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}
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int main()
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{
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// create a JSON value
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json j = R"({"compact": true, "schema": false})"_json;
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// serialize it to UBJSON
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std::vector<std::uint8_t> v = json::to_ubjson(j);
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// print the vector content
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for (auto& byte : v)
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{
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print_byte(byte);
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}
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std::cout << std::endl;
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// create an array of numbers
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json array = {1, 2, 3, 4, 5, 6, 7, 8};
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// serialize it to UBJSON using default representation
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std::vector<std::uint8_t> v_array = json::to_ubjson(array);
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// serialize it to UBJSON using size optimization
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std::vector<std::uint8_t> v_array_size = json::to_ubjson(array, true);
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// serialize it to UBJSON using type optimization
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std::vector<std::uint8_t> v_array_size_and_type = json::to_ubjson(array, true, true);
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// print the vector contents
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for (auto& byte : v_array)
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{
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print_byte(byte);
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}
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std::cout << std::endl;
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for (auto& byte : v_array_size)
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{
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print_byte(byte);
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}
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std::cout << std::endl;
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for (auto& byte : v_array_size_and_type)
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{
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print_byte(byte);
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}
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std::cout << std::endl;
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}
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```
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Output:
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```c
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--8<-- "examples/to_ubjson.output"
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{i7compactTi6schemaF}
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[i1i2i3i4i5i6i7i8]
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[#i8i1i2i3i4i5i6i7i8
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[$i#i812345678
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```
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## Deserialization
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@@ -145,11 +213,35 @@ The library maps UBJSON types to JSON value types as follows:
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??? example "Example: deserialize a JSON value from UBJSON"
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```cpp
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--8<-- "examples/from_ubjson.cpp"
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#include <iostream>
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#include <iomanip>
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#include <nlohmann/json.hpp>
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using json = nlohmann::json;
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int main()
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{
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// create byte vector
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std::vector<std::uint8_t> v = {0x7B, 0x69, 0x07, 0x63, 0x6F, 0x6D, 0x70, 0x61,
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0x63, 0x74, 0x54, 0x69, 0x06, 0x73, 0x63, 0x68,
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0x65, 0x6D, 0x61, 0x69, 0x00, 0x7D
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};
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// deserialize it with UBJSON
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json j = json::from_ubjson(v);
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// print the deserialized JSON value
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std::cout << std::setw(2) << j << std::endl;
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}
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```
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Output:
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```json
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--8<-- "examples/from_ubjson.output"
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{
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"compact": true,
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"schema": 0
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}
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```
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