write shit

LibCmo/CK2/MgrImpls/CKPathManager.cpp

@@ -94,5 +94,13 @@ namespace LibCmo::CK2::MgrImpls {
 		return false;
 	}
 
+	void CKPathManager::GetExtension(std::string& u8path) {
+		std::filesystem::path filepath;
+		EncodingHelper::U8PathToStdPath(filepath, u8path.c_str());
+
+		auto result = filepath.extension();
+		EncodingHelper::StdPathToU8Path(u8path, result);
+	}
+
 }
 

LibCmo/CK2/MgrImpls/CKPathManager.hpp

@@ -53,6 +53,12 @@ namespace LibCmo::CK2::MgrImpls {
 		*/
 		bool ResolveFileName(std::string& u8_filename);
 
+		/**
+		 * @brief Returns the file extension including period (.)
+		 * @param u8path[inout] The given path. overwritten by the gotten extension. set to blank when failed.
+		*/
+		void GetExtension(std::string& u8path);
+
 	protected:
 		std::filesystem::path m_TempFolder;
 		XContainer::XArray<std::filesystem::path> m_ExtraPathes;