1 files changed, 219 insertions, 0 deletions
diff --git a/doc_example/json_doc_2.cpp b/doc_example/json_doc_2.cpp
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+++ b/doc_example/json_doc_2.cpp
@@ -0,0 +1,219 @@
+
+#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() << 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() << 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() << 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() << 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() << 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() << 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() << 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() << 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() << 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;
+}