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#include <orcus/json_document_tree.hpp>
#include <orcus/config.hpp>
#include <iostream>
#include <functional>
#include <vector>
void example_root_list()
{
//!code-start: root list
orcus::json::document_tree doc = {
1.0, 2.0, "string value", false, nullptr
};
std::cout << doc.dump(4) << std::endl;
//!code-end: root list
}
void example_list_nested()
{
//!code-start: list nested
orcus::json::document_tree doc = {
{ true, false, nullptr },
{ 1.1, 2.2, "text" }
};
std::cout << doc.dump(4) << std::endl;
//!code-end: list nested
}
void example_list_object()
{
//!code-start: list object
orcus::json::document_tree doc = {
{ "key1", 1.2 },
{ "key2", "some text" },
};
std::cout << doc.dump(4) << std::endl;
//!code-end: list object
}
void example_list_object_2()
{
//!code-start: list object 2
orcus::json::document_tree doc = {
{ "parent1", {
{ "child1", true },
{ "child2", false },
{ "child3", 123.4 },
}
},
{ "parent2", "not-nested" },
};
std::cout << doc.dump(4) << std::endl;
//!code-end: list object 2
}
void example_array_ambiguous()
{
//!code-start: array ambiguous
orcus::json::document_tree doc = {
{ "array", { "one", 987.0 } }
};
//!code-end: array ambiguous
}
void example_array_explicit()
{
//!code-start: array explicit
using namespace orcus;
json::document_tree doc = {
{ "array", json::array({ "one", 987.0 }) }
};
std::cout << doc.dump(4) << std::endl;
//!code-end: array explicit
}
void example_object_ambiguous()
{
//!code-start: object ambiguous a
using namespace orcus;
json::document_tree doc = {};
//!code-end: object ambiguous a
//!code-start: object ambiguous b
try
{
auto root = doc.get_document_root();
}
catch (const json::document_error& e)
{
std::cout << e.what() << std::endl;
}
//!code-end: object ambiguous b
}
void example_object_explicit_1()
{
//!code-start: object explicit 1
using namespace orcus;
json::document_tree doc = json::object();
std::cout << doc.dump(4) << std::endl;
//!code-end: object explicit 1
}
void example_object_explicit_2()
{
//!code-start: object explicit 2
using namespace orcus;
json::document_tree doc = {
json::object(),
json::object(),
json::object()
};
std::cout << doc.dump(4) << std::endl;
//!code-end: object explicit 2
}
void example_root_object_add_child()
{
//!code-start: root object add child
using namespace orcus;
// Initialize the tree with an empty object.
json::document_tree doc = json::object();
// Get the root object, and assign three key-value pairs.
json::node root = doc.get_document_root();
root["child1"] = 1.0;
root["child2"] = "string";
root["child3"] = { true, false }; // implicit array
// You can also create a key-value pair whose value is another object.
root["child object"] = {
{ "key1", 100.0 },
{ "key2", 200.0 }
};
root["child array"] = json::array({ 1.1, 1.2, true }); // explicit array
std::cout << doc.dump(4) << std::endl;
//!code-end: root object add child
}
void example_root_array_add_child()
{
//!code-start: root array add child
using namespace orcus;
// Initialize the tree with an empty array root.
json::document_tree doc = json::array();
// Get the root array.
json::node root = doc.get_document_root();
// Append values to the array.
root.push_back(-1.2);
root.push_back("string");
root.push_back(true);
root.push_back(nullptr);
// You can append an object to the array via push_back() as well.
root.push_back({{"key1", 1.1}, {"key2", 1.2}});
std::cout << doc.dump(4) << std::endl;
//!code-end: root array add child
}
int main()
{
using func_type = std::function<void()>;
std::vector<func_type> funcs = {
example_root_list,
example_list_nested,
example_list_object,
example_list_object_2,
example_array_explicit,
example_object_ambiguous,
example_object_explicit_1,
example_object_explicit_2,
example_root_object_add_child,
example_root_array_add_child,
};
for (func_type f : funcs)
{
std::cout << "--" << std::endl;
f();
}
std::vector<func_type> funcs_exc = {
example_array_ambiguous,
};
for (func_type f : funcs_exc)
{
try
{
f();
}
catch (orcus::json::key_value_error&)
{
// expected
}
}
return EXIT_SUCCESS;
}
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