Add some string functions

src/component/string.cpp

@@ -0,0 +1,46 @@
+#include <stdinc.hpp>
+#include "loader/component_loader.hpp"
+
+#include "gsc.hpp"
+
+#include <utils/string.hpp>
+
+namespace string
+{
+	class component final : public component_interface
+	{
+	public:
+		void post_unpack() override
+		{
+			gsc::function::add("toupper", [](const gsc::function_args& args)
+			{
+				return utils::string::to_upper(args[0].as<std::string>());
+			});
+
+			gsc::function::add("getchar", [](const gsc::function_args& args)
+			{
+				auto index = 0;
+				if (args.size() > 1)
+				{
+					index = args[1].as<int>();
+				}
+
+				const auto string = args[0].as<std::string>();
+				if (index >= static_cast<int>(string.size()))
+				{
+					throw std::runtime_error("Char index out of bounds");
+				}
+
+				return static_cast<int>(string[index]);
+			});
+
+			gsc::function::add("chartostring", [](const gsc::function_args& args)
+			{
+				const auto char_ = static_cast<char>(args[0].as<int>());
+				return std::string(1, char_);
+			});
+		}
+	};
+}
+
+REGISTER_COMPONENT(string::component)