doc: finish all documentations

doc/Doxyfile.in

@@ -2356,7 +2356,7 @@ INCLUDE_FILE_PATTERNS  =
 # recursively expanded use the := operator instead of the = operator.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-PREDEFINED             =
+PREDEFINED             = YYCC_DOXYGEN
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
 # tag can be used to specify a list of macro names that should be expanded. The

doc/src/console_helper.dox

@@ -30,7 +30,7 @@ We suggest you to call this function at the beginning of program.
 
 Considering most Linux console supports ASCII Escape Code very well,
 this function does nothing in non-Windows platform.
-So it is not essential that brack this function calling with Windows-only \#if.
+So it is not essential that brack this function calling with Windows-only \c \#if.
 
 \subsection console_helper__color__common Common Usage
 

doc/src/intro.dox

@@ -80,4 +80,83 @@ Before using this library, I suggest you read this manual fully to have a full o
 Otherwise you may make mistake during using this library.
 I suggest you read this manual from top to bottom in the left tree panel, one by one.
 
+YYCC library self provides some build scripts for convenient use which are located in \c script directory.
+Please note all of these script should be executed in the root of YYCC project, not the script directory
+(i.e. work directory is the root directory of YYCC).
+All scripts will try to do a simple check about this if you accidently execute them in a wrong place.
+
+If you are not willing to use our build script, or our build script went wrong,
+you can create your personal build script by viewing our build script.
+
+\subsection intro__usage__linux Linux
+
+Building YYCC on Linux is easy to do by executing <TT>script/linux_build.sh</TT>.
+After script done, you will find installation result in directory <TT>bin/install</TT>.
+Then other CMake project can utilize it (non-CMake project also can utilize this).
+
+\subsection intro__usage__win Windows
+
+For building on Windows, there are 2 distribution types which YYCC can create.
+First is CMake distribution, this distribution is served for other CMake project using.
+Another one is MSVC distribution, this distribution is served for other MSVC project using.
+These have different directory layout which is specifically designed for corresponding build tools.
+See following section for more details.
+
+\subsubsection intro__usage__win__cmake CMake Distribution
+
+For creating CMake distribution, please execute script <TT>script/win_build.bat</TT>.
+After script done, you will find CMake distribution in directory <TT>bin/install</TT> with following structure.
+
+\verbatim
+YYCC
+├─Win32_Debug: Win32 Debug package
+│  ├─include: Headers
+│  └─lib: Library for linking and CMake package file
+├─Win32_Release: Win32 Release package
+│  ├─bin: Executable testbench
+│  ├─include: Headers
+│  └─lib: Library for linking and CMake package file
+├─x64_Debug: x64 Debug package
+│  ├─include: Headers
+│  └─lib: Library for linking and CMake package file
+└─x64_Release: x64 Release package
+    ├─bin: Executable testbench
+    ├─include: Headers
+    ├─lib: Library for linking and CMake package file
+    └─share: Documentation
+\endverbatim
+
+Every different architecture and build type have a single and full directory.
+CMake project can use one of by adding their build type in \c find_package path.
+So that CMake will automatically utilize correct package when switching build type.
+
+\subsubsection intro__usage__win__msvc MSVC Distribution
+
+Before creating MSVC distribution, you should create CMake distribution first,
+because MSVC distribution depend on CMake distribution.
+
+After creating CMake distribution, you can simply create MSVC distribution by executing <TT>script/win_msvc_build.bat</TT>.
+Then you will find your MSVC distribution in directory <TT>bin/msvc_install</TT> with following structure.
+
+\verbatim
+YYCC
+├─bin
+│  ├─Win32: Win32 Release testbench
+│  └─x64: x64 Release testbench
+├─include: Headers
+├─lib
+│  ├─Win32
+│  │  ├─Debug: Win32 Debug library for linking
+│  │  └─Release: Win32 Release library for linking
+│  └─x64
+│      ├─Debug: x64 Debug library for linking
+│      └─Release: x64 Release library for linking
+└─share: Documentation
+\endverbatim
+
+The different between MSVC distribution and CMake distribution is
+that MSVC distribution places all static library under one director \c lib.
+Thus in MSVC project user can simply spcify the install path of YYCC,
+and use MSVC macros in path to choose correct static library for linking
+
 */

src/COMHelper.hpp

@@ -9,11 +9,17 @@
 #include <shlobj_core.h>
 #include "WinImportSuffix.hpp"
 
+/**
+ * @brief Windows COM related types and checker.
+ * @details
+ * This namespace is Windows specific.
+ * In other platforms, this whole namespace will be unavailable.
+ * 
+ * See also \ref com_helper.
+*/
 namespace YYCC::COMHelper {
 
-	/**
-	 * @brief C++ standard deleter for every COM interfaces inheriting IUnknown.
-	*/
+	/// @brief C++ standard deleter for every COM interfaces inheriting IUnknown.
 	class ComPtrDeleter {
 	public:
 		ComPtrDeleter() {}
@@ -24,15 +30,18 @@ namespace YYCC::COMHelper {
 		}
 	};
 
+	/// @brief Smart unique pointer of \c IFileDialog
 	using SmartIFileDialog = std::unique_ptr<IFileDialog, ComPtrDeleter>;
+	/// @brief Smart unique pointer of \c IFileOpenDialog
 	using SmartIFileOpenDialog = std::unique_ptr<IFileOpenDialog, ComPtrDeleter>;
+	/// @brief Smart unique pointer of \c IShellItem
 	using SmartIShellItem = std::unique_ptr<IShellItem, ComPtrDeleter>;
+	/// @brief Smart unique pointer of \c IShellItemArray
 	using SmartIShellItemArray = std::unique_ptr<IShellItemArray, ComPtrDeleter>;
+	/// @brief Smart unique pointer of \c IShellFolder
 	using SmartIShellFolder = std::unique_ptr<IShellFolder, ComPtrDeleter>;
 
-	/**
-	 * @brief C++ standard deleter for almost raw pointer used in COM which need to be free by CoTaskMemFree()
-	*/
+	/// @brief C++ standard deleter for almost raw pointer used in COM which need to be free by CoTaskMemFree()
 	class CoTaskMemDeleter {
 	public:
 		CoTaskMemDeleter() {}
@@ -42,7 +51,8 @@ namespace YYCC::COMHelper {
 			}
 		}
 	};
-
+	
+	/// @brief Smart unique pointer of COM created \c WCHAR sequence.
 	using SmartLPWSTR = std::unique_ptr<std::remove_pointer_t<LPWSTR>, CoTaskMemDeleter>;
 
 	/**

src/ConfigManager.hpp

@@ -11,8 +11,16 @@
 #include <stdexcept>
 #include <cstring>
 
+/**
+ * @brief Universal configuration manager
+ * @details For how to use this namespace, please see \ref config_manager.
+*/
 namespace YYCC::ConfigManager {
 
+	/**
+	 * @brief The constraint applied to settings to limit its stored value.
+	 * @tparam _Ty The internal data type stroed in corresponding setting.
+	*/
 	template<typename _Ty>
 	struct Constraint {
 		using CheckFct_t = std::function<bool(const _Ty&)>;
@@ -25,8 +33,18 @@ namespace YYCC::ConfigManager {
 		}
 	};
 
+	/**
+	 * @brief The namespace containing functions generating common used constraint.
+	*/
 	namespace ConstraintPresets {
 
+		/**
+		 * @brief Get constraint for arithmetic values by minimum and maximum value range.
+		 * @tparam _Ty The underlying arithmetic type.
+		 * @param[in] min_value The minimum value of range (inclusive).
+		 * @param[in] max_value The maximum value of range (inclusive).
+		 * @return The generated constraint instance which can be directly applied.
+		*/
 		template<typename _Ty, std::enable_if_t<std::is_arithmetic_v<_Ty> && !std::is_enum_v<_Ty> && !std::is_same_v<_Ty, bool>, int> = 0>
 		Constraint<_Ty> GetNumberRangeConstraint(_Ty min_value, _Ty max_value) {
 			if (min_value > max_value)
@@ -39,9 +57,15 @@ namespace YYCC::ConfigManager {
 
 	}
 
+	/// @brief The base class of every setting.
+	/// @details Programmer can inherit this class and implement essential to create custom setting.
 	class AbstractSetting {
 		friend class CoreManager;
 	public:
+		/**
+		 * @brief Construct a setting
+		 * @param[in] name The name of this setting.
+		*/
 		AbstractSetting(const yycc_char8_t* name) : m_Name(), m_RawData() {
 			if (name != nullptr) m_Name = name;
 		}
@@ -49,28 +73,57 @@ namespace YYCC::ConfigManager {
 
 		// Name interface
 	public:
+		/// @brief Get name of this setting.
+		/// @details Name was used in storing setting in file.
 		const yycc_u8string& GetName() const { return m_Name; }
 	private:
 		yycc_u8string m_Name;
 
 		// User Implementations
 	protected:
+		/// @brief User implemented custom load functions
+		/// @remarks 
+		/// In this function, programmer should read data from internal buffer 
+		/// and store it to its own another internal variables.
+		/// @return True if success, otherwise false.
 		virtual bool UserLoad() = 0;
+		/// @brief User implemented custom save functions
+		/// @remarks 
+		/// In this function, programmer should write data, 
+		/// which is stored in another variavle by it own, to internal buffer.
+		/// @return True if success, otherwise false.
 		virtual bool UserSave() = 0;
+		/// @brief User implemented custom reset functions
+		/// @remarks In this function, programmer should reset its internal variable to default value.
 		virtual void UserReset() = 0;
 
 		// Buffer related functions
 	protected:
+		/// @brief Resize internal buffer to given size.
+		/// @remarks It is usually used in UserSave.
+		/// @param[in] new_size The new size of internal buffer.
 		void ResizeData(size_t new_size) { m_RawData.resize(new_size); }
+		/// @brief Get data pointer to internal buffer.
+		/// @remarks It is usually used in UserLoad.
 		const void* GetDataPtr() const { return m_RawData.data(); }
+		/// @brief Get mutable data pointer to internal buffer.
+		/// @remarks It is usually used in UserSave.
 		void* GetDataPtr() { return m_RawData.data(); }
+		/// @brief Get the length of internal buffer.
 		size_t GetDataSize() const { return m_RawData.size(); }
 	private:
 		std::vector<uint8_t> m_RawData;
 	};
-
+	
+	/// @brief Settings manager and config file reader writer.
 	class CoreManager {
 	public:
+		/**
+		 * @brief Build core manager.
+		 * @param[in] cfg_file_path The path to config file.
+		 * @param[in] version_identifier The identifier of version. Higher is newer. Lower config will try doing migration.
+		 * @param[in] settings An initializer list containing pointers to all managed settings.
+		*/
 		CoreManager(
 			const yycc_char8_t* cfg_file_path,
 			uint64_t version_identifier,
@@ -79,8 +132,14 @@ namespace YYCC::ConfigManager {
 
 		// Core functions
 	public:
+		/// @brief Load settings from file.
+		/// @details Before loading, all settings will be reset to default value first.
+		/// @return True if success, otherwise false.
 		bool Load();
+		/// @brief Save settings to file.
+		/// @return True if success, otherwise false.
 		bool Save();
+		/// @brief Reset all settings to default value.
 		void Reset();
 
 	private:
@@ -94,14 +153,30 @@ namespace YYCC::ConfigManager {
 
 #pragma region Setting Presets
 
+	/**
+	 * @brief Arithmetic (integral, floating point, bool) and enum type setting
+	 * @tparam _Ty The internal stored type belongs to arithmetic type.
+	*/
 	template<typename _Ty, std::enable_if_t<std::is_arithmetic_v<_Ty> || std::is_enum_v<_Ty>, int> = 0>
 	class NumberSetting : public AbstractSetting {
 	public:
+		/**
+		 * @brief Construct arithmetic type setting.
+		 * @param[in] name The name of this setting.
+		 * @param[in] default_value The default value of this setting.
+		 * @param[in] constraint The constraint applied to this setting.
+		*/
 		NumberSetting(const yycc_char8_t* name, _Ty default_value, Constraint<_Ty> constraint = Constraint<_Ty> {}) :
 			AbstractSetting(name), m_Data(default_value), m_DefaultData(default_value), m_Constraint(constraint) {}
 		virtual ~NumberSetting() {}
-
+		
+		/// @brief Get stored data in setting.
 		_Ty Get() const { return m_Data; }
+		/**
+		 * @brief Set data to setting.
+		 * @param[in] new_data The new data.
+		 * @return True if success, otherwise false (given value is invalid)
+		*/
 		bool Set(_Ty new_data) {
 			// validate data
 			if (m_Constraint.IsValid() && !m_Constraint.m_CheckFct(new_data))
@@ -136,16 +211,29 @@ namespace YYCC::ConfigManager {
 		Constraint<_Ty> m_Constraint;
 	};
 
+	/// @brief String type setting
 	class StringSetting : public AbstractSetting {
 	public:
+		/**
+		 * @brief Construct string setting
+		 * @param[in] name The name of this setting.
+		 * @param[in] default_value The default value of this setting.
+		 * @param[in] constraint The constraint applied to this setting.
+		*/
 		StringSetting(const yycc_char8_t* name, const yycc_u8string_view& default_value, Constraint<yycc_u8string_view> constraint = Constraint<yycc_u8string_view> {}) :
 			AbstractSetting(name), m_Data(), m_DefaultData(), m_Constraint(constraint) {
 			m_Data = default_value;
 			m_DefaultData = default_value;
 		}
 		virtual ~StringSetting() {}
-
+		
+		/// @brief Get reference to stored string.
 		const yycc_u8string& Get() const { return m_Data; }
+		/**
+		 * @brief Set string data to setting.
+		 * @param[in] new_data The new string data.
+		 * @return True if success, otherwise false (given value is invalid)
+		*/
 		bool Set(const yycc_u8string_view& new_data) {
 			// check data validation
 			if (m_Constraint.IsValid() && !m_Constraint.m_CheckFct(new_data))

src/ConsoleHelper.hpp

@@ -5,117 +5,158 @@
 #include <string>
 
 /**
- * @brief The namespace providing universal Console visiting functions like C-Sharp Console class.
+ * @brief The helper providing universal C\# style console function and other console related stuff
  * @details
- * \ref console_helper
+ * For how to utilize this functions provided by this namespace, please view \ref console_helper.
 */
 namespace YYCC::ConsoleHelper {
 
+	/// @brief The head of ASCII escape code of black color.
 #define YYCC_COLORHDR_BLACK "\033[30m"
+	/// @brief The head of ASCII escape code of red color.
 #define YYCC_COLORHDR_RED "\033[31m"
+	/// @brief The head of ASCII escape code of green color.
 #define YYCC_COLORHDR_GREEN "\033[32m"
+	/// @brief The head of ASCII escape code of yellow color.
 #define YYCC_COLORHDR_YELLOW "\033[33m"
+	/// @brief The head of ASCII escape code of blue color.
 #define YYCC_COLORHDR_BLUE "\033[34m"
+	/// @brief The head of ASCII escape code of magenta color.
 #define YYCC_COLORHDR_MAGENTA "\033[35m"
+	/// @brief The head of ASCII escape code of cyan color.
 #define YYCC_COLORHDR_CYAN "\033[36m"
+	/// @brief The head of ASCII escape code of white color.
 #define YYCC_COLORHDR_WHITE "\033[37m"
-
+	
+	/// @brief The head of ASCII escape code of light black color.
 #define YYCC_COLORHDR_LIGHT_BLACK "\033[90m"
+	/// @brief The head of ASCII escape code of light red color.
 #define YYCC_COLORHDR_LIGHT_RED "\033[91m"
+	/// @brief The head of ASCII escape code of light green color.
 #define YYCC_COLORHDR_LIGHT_GREEN "\033[92m"
+	/// @brief The head of ASCII escape code of light yellow color.
 #define YYCC_COLORHDR_LIGHT_YELLOW "\033[93m"
+	/// @brief The head of ASCII escape code of light blue color.
 #define YYCC_COLORHDR_LIGHT_BLUE "\033[94m"
+	/// @brief The head of ASCII escape code of light magenta color.
 #define YYCC_COLORHDR_LIGHT_MAGENTA "\033[95m"
+	/// @brief The head of ASCII escape code of light cyan color.
 #define YYCC_COLORHDR_LIGHT_CYAN "\033[96m"
+	/// @brief The head of ASCII escape code of light white color.
 #define YYCC_COLORHDR_LIGHT_WHITE "\033[97m"
-
+	
+	/// @brief The tail of ASCII escape code of every color.
 #define YYCC_COLORTAIL "\033[0m"
-
-
+	
+	/// @brief The ASCII escape code pair of black color.
 #define YYCC_COLOR_BLACK(T) "\033[30m" T "\033[0m"
+	/// @brief The ASCII escape code pair of red color.
 #define YYCC_COLOR_RED(T) "\033[31m" T "\033[0m"
+	/// @brief The ASCII escape code pair of green color.
 #define YYCC_COLOR_GREEN(T) "\033[32m" T "\033[0m"
+	/// @brief The ASCII escape code pair of yellow color.
 #define YYCC_COLOR_YELLOW(T) "\033[33m" T "\033[0m"
+	/// @brief The ASCII escape code pair of blue color.
 #define YYCC_COLOR_BLUE(T) "\033[34m" T "\033[0m"
+	/// @brief The ASCII escape code pair of magenta color.
 #define YYCC_COLOR_MAGENTA(T) "\033[35m" T "\033[0m"
+	/// @brief The ASCII escape code pair of cyan color.
 #define YYCC_COLOR_CYAN(T) "\033[36m" T "\033[0m"
+	/// @brief The ASCII escape code pair of white color.
 #define YYCC_COLOR_WHITE(T) "\033[37m" T "\033[0m"
-
+	
+	/// @brief The ASCII escape code pair of light black color.
 #define YYCC_COLOR_LIGHT_BLACK(T) "\033[90m" T "\033[0m"
+	/// @brief The ASCII escape code pair of light red color.
 #define YYCC_COLOR_LIGHT_RED(T) "\033[91m" T "\033[0m"
+	/// @brief The ASCII escape code pair of light green color.
 #define YYCC_COLOR_LIGHT_GREEN(T) "\033[92m" T "\033[0m"
+	/// @brief The ASCII escape code pair of light yellow color.
 #define YYCC_COLOR_LIGHT_YELLOW(T) "\033[93m" T "\033[0m"
+	/// @brief The ASCII escape code pair of light blue color.
 #define YYCC_COLOR_LIGHT_BLUE(T) "\033[94m" T "\033[0m"
+	/// @brief The ASCII escape code pair of light magenta color.
 #define YYCC_COLOR_LIGHT_MAGENTA(T) "\033[95m" T "\033[0m"
+	/// @brief The ASCII escape code pair of light cyan color.
 #define YYCC_COLOR_LIGHT_CYAN(T) "\033[96m" T "\033[0m"
+	/// @brief The ASCII escape code pair of light white color.
 #define YYCC_COLOR_LIGHT_WHITE(T) "\033[97m" T "\033[0m"
 
 	/**
-	 * @brief Enable Windows console color support.
-	 * @details This actually is enable virtual console feature for stdout and stderr.
+	 * @brief Enable console color support for Windows.
+	 * @details This actually is enable virtual console feature for \c stdout and \c stderr.
 	 * @return True if success, otherwise false.
-	 * @remarks This function only works on Windows and do nothing on other platforms such as Linux,
+	 * @remarks 
+	 * This function only works on Windows and do nothing on other platforms such as Linux,
 	 * because we assume all terminals existing on other platform support color feature as default.
 	*/
 	bool EnableColorfulConsole();
 
 	/**
-	 * @brief Universal console read function
+	 * @brief Reads the next line of UTF8 characters from the standard input stream.
 	 * @return
-	 * The UTF8 encoded string this function read. EOL is excluded.
+	 * The next line of UTF8 characters from the input stream.
 	 * Empty string if user just press Enter key or function failed.
-	 * @remarks
-	 * This function is more like C# Console.ReadLine().
-	 * It read user input with UTF8 encoding until reaching EOL.
-	 * \par
-	 * This function also can be used as ordering user press Enter key by
-	 * simply calling this function and ignoring its return value.
 	*/
 	yycc_u8string ReadLine();
 
 	/**
-	 * @brief Universal console write function with format feature.
+	 * @brief 
+	 * Writes the text representation of the specified object 
+	 * to the standard output stream using the specified format information.
 	 * @param[in] u8_fmt The format string.
-	 * @param[in] ... The arguments to be formatted.
+	 * @param[in] ... The arguments of format string.
 	*/
 	void Format(const yycc_char8_t* u8_fmt, ...);
 	/**
-	 * @brief Universal console write function with format and auto EOL feature.
+	 * @brief 
+	 * Writes the text representation of the specified object, 
+	 * followed by the current line terminator, 
+	 * to the standard output stream using the specified format information.
 	 * @param[in] u8_fmt The format string.
-	 * @param[in] ... The arguments to be formatted.
+	 * @param[in] ... The arguments of format string.
 	*/
 	void FormatLine(const yycc_char8_t* u8_fmt, ...);
 	/**
-	 * @brief Universal console write function.
-	 * @param[in] u8_strl The string to be written.
+	 * @brief Writes the specified string value to the standard output stream.
+	 * @param[in] u8_strl The value to write.
 	*/
 	void Write(const yycc_char8_t* u8_strl);
 	/**
-	 * @brief Universal console write function with auto EOL feature.
-	 * @param[in] u8_strl The string to be written.
+	 * @brief 
+	 * Writes the specified string value, followed by the current line terminator, 
+	 * to the standard output stream.
+	 * @param[in] u8_strl The value to write.
 	*/
 	void WriteLine(const yycc_char8_t* u8_strl);
 
 	/**
-	 * @brief Universal console error write function with format and feature.
+	 * @brief 
+	 * Writes the text representation of the specified object 
+	 * to the standard error stream using the specified format information.
 	 * @param[in] u8_fmt The format string.
-	 * @param[in] ... The arguments to be formatted.
+	 * @param[in] ... The arguments of format string.
 	*/
 	void ErrFormat(const yycc_char8_t* u8_fmt, ...);
 	/**
-	 * @brief Universal console error write function with format and auto EOL feature.
+	 * @brief 
+	 * Writes the text representation of the specified object, 
+	 * followed by the current line terminator, 
+	 * to the standard error stream using the specified format information.
 	 * @param[in] u8_fmt The format string.
-	 * @param[in] ... The arguments to be formatted.
+	 * @param[in] ... The arguments of format string.
 	*/
 	void ErrFormatLine(const yycc_char8_t* u8_fmt, ...);
 	/**
-	 * @brief Universal console error write function.
-	 * @param[in] u8_strl The string to be written.
+	 * @brief Writes the specified string value to the standard error stream.
+	 * @param[in] u8_strl The value to write.
 	*/
 	void ErrWrite(const yycc_char8_t* u8_strl);
 	/**
-	 * @brief Universal console error write function with auto EOL feature.
-	 * @param[in] u8_strl The string to be written.
+	 * @brief 
+	 * Writes the specified string value, followed by the current line terminator, 
+	 * to the standard error stream.
+	 * @param[in] u8_strl The value to write.
 	*/
 	void ErrWriteLine(const yycc_char8_t* u8_strl);
 

src/DialogHelper.hpp

@@ -12,11 +12,19 @@
 #include <shlobj_core.h>
 #include "WinImportSuffix.hpp"
 
+/**
+ * @brief The namespace providing Windows universal dialog features.
+ * @details
+ * This namespace only available on Windows platform.
+ * See also \ref dialog_helper.
+*/
 namespace YYCC::DialogHelper {
 
 	/**
-	 * @brief The class represent the file types region in file dialog
-	 * @details THis class is specific for Windows use, not user oriented.
+	 * @brief The class representing the file types region in file dialog.
+	 * @details 
+	 * This class is served for Windows used. 
+	 * Programmer should \b not create this class manually.
 	*/
 	class WinFileFilters {
 		friend class FileFilters;
@@ -24,9 +32,11 @@ namespace YYCC::DialogHelper {
 	public:
 		WinFileFilters() : m_WinFilters(), m_WinDataStruct(nullptr) {}
 
+		/// @brief Get the count of available file filters
 		UINT GetFilterCount() const {
 			return static_cast<UINT>(m_WinFilters.size());
 		}
+		/// @brief Get pointer to Windows used file filters declarations
 		const COMDLG_FILTERSPEC* GetFilterSpecs() const {
 			return m_WinDataStruct.get();
 		}
@@ -39,6 +49,7 @@ namespace YYCC::DialogHelper {
 		std::vector<WinFilterPair> m_WinFilters;
 		std::unique_ptr<COMDLG_FILTERSPEC[]> m_WinDataStruct;
 
+		/// @brief Clear all current file filters
 		void Clear() {
 			m_WinDataStruct.reset();
 			m_WinFilters.clear();
@@ -46,9 +57,12 @@ namespace YYCC::DialogHelper {
 	};
 
 	/**
-	 * @brief The class represent the file types region in file dialog.
-	 * @details This class is user oriented. User can use function manipulate file types
-	 * and final generation function will produce Windows-understood data struct from this.
+	 * @brief The class representing the file types region in file dialog.
+	 * @details 
+	 * This class is served for programmer using.
+	 * But you don't need create it on your own.
+	 * You can simply fetch it by FileDialog::ConfigreFileTypes ,
+	 * because this class is a part of FileDialog.
 	*/
 	class FileFilters {
 	public:
@@ -56,31 +70,34 @@ namespace YYCC::DialogHelper {
 
 		/**
 		 * @brief Add a filter pair in file types list.
-		 * @param filter_name[in] The friendly name of the filter.
-		 * @param il[in] A C++ initialize list.
-		 * Every entries must be `const yycc_char8_t*` represent a single filter pattern.
+		 * @param[in] filter_name The friendly name of the filter.
+		 * @param[in] il 
+		 * A C++ initialize list containing acceptable file filter pattern.
+		 * Every entries must be `const yycc_char8_t*` representing a single filter pattern.
 		 * The list at least should have one valid pattern.
 		 * This function will not validate these filter patterns, so please write them carefully.
 		 * @return True if added success, otherwise false.
-		 * @remarks This function allow you register multiple filter patterns for single friendly name.
-		 * For example: `Add("Microsoft Word (*.doc; *.docx)", {"*.doc", "*.docx"})`
+		 * @remarks
+		 * This function allow you register multiple filter patterns for single friendly name.
+		 * For example: <TT>Add(u8"Microsoft Word (*.doc; *.docx)", {u8"*.doc", u8"*.docx"})</TT>
 		*/
 		bool Add(const yycc_char8_t* filter_name, std::initializer_list<const yycc_char8_t*> il);
-		/**
-		 * @brief Clear filter pairs for following re-use.
-		*/
-		void Clear() { m_Filters.clear(); }
 		/**
 		 * @brief Get the count of added filter pairs.
 		 * @return The count of already added filter pairs.
 		*/
 		size_t Count() const { return m_Filters.size(); }
 
+		/// @brief Clear filter pairs for following re-use.
+		void Clear() { m_Filters.clear(); }
+
 		/**
 		 * @brief Generate Windows dialog system used data struct.
-		 * @param win_result[out] The class holding the generated filter data struct.
-		 * @return True if generation is success, otherwise false.
-		 * @remarks User should not call this function, this function is used in internal code.
+		 * @param[out] win_result The class receiving the generated filter data struct.
+		 * @return True if generation success, otherwise false.
+		 * @remarks 
+		 * Programmer should not call this function, 
+		 * this function is used as YYCC internal code.
 		*/
 		bool Generate(WinFileFilters& win_result) const;
 
@@ -93,8 +110,10 @@ namespace YYCC::DialogHelper {
 	};
 
 	/**
-	 * @brief The class represent the file dialog
-	 * @details THis class is specific for Windows use, not user oriented.
+	 * @brief The class representing the file dialog.
+	 * @details 
+	 * This class is served for Windows used. 
+	 * Programmer should \b not create this class manually.
 	*/
 	class WinFileDialog {
 		friend class FileDialog;
@@ -105,18 +124,28 @@ namespace YYCC::DialogHelper {
 			m_HasTitle(false), m_HasInitFileName(false), m_WinTitle(), m_WinInitFileName(),
 			m_WinInitDirectory(nullptr) {}
 
+		/// @brief Get whether this dialog has owner.
 		bool HasOwner() const { return m_WinOwner != NULL; }
+		/// @brief Get the \c HWND of dialog owner.
 		HWND GetOwner() const { return m_WinOwner; }
-
+		
+		/// @brief Get the struct holding Windows used file filters data.
 		const WinFileFilters& GetFileTypes() const { return m_WinFileTypes; }
+		/// @brief Get the index of default selected file filter.
 		UINT GetDefaultFileTypeIndex() const { return m_WinDefaultFileTypeIndex; }
-
+		
+		/// @brief Get whether dialog has custom title.
 		bool HasTitle() const { return m_HasTitle; }
+		/// @brief Get custom title of dialog.
 		const wchar_t* GetTitle() const { return m_WinTitle.c_str(); }
+		/// @brief Get whether dialog has custom initial file name.
 		bool HasInitFileName() const { return m_HasInitFileName; }
+		/// @brief Get custom initial file name of dialog
 		const wchar_t* GetInitFileName() const { return m_WinInitFileName.c_str(); }
-
+		
+		/// @brief Get whether dialog has custom initial directory.
 		bool HasInitDirectory() const { return m_WinInitDirectory.get() != nullptr; }
+		/// @brief Get custom initial directory of dialog.
 		IShellItem* GetInitDirectory() const { return m_WinInitDirectory.get(); }
 
 	protected:
@@ -124,15 +153,17 @@ namespace YYCC::DialogHelper {
 		WinFileFilters m_WinFileTypes;
 		/**
 		 * @brief The default selected file type in dialog
-		 * @remarks This is 1-based index according to Windows specification.
-		 * In other words, you should plus 1 for this index when generating this struct from
-		 * user oriented file dialog parameters.
+		 * @remarks 
+		 * This is 1-based index according to Windows specification.
+		 * In other words, when generating this struct from FileDialog to this struct this field should plus 1.
+		 * Because the same field located in FileDialog is 0-based index.
 		*/
 		UINT m_WinDefaultFileTypeIndex;
 		bool m_HasTitle, m_HasInitFileName;
 		std::wstring m_WinTitle, m_WinInitFileName;
 		COMHelper::SmartIShellItem m_WinInitDirectory;
-
+		
+		/// @brief Clear all data and reset them to default value.
 		void Clear() {
 			m_WinOwner = nullptr;
 			m_WinFileTypes.Clear();
@@ -145,9 +176,10 @@ namespace YYCC::DialogHelper {
 	};
 
 	/**
-	 * @brief The class represent the file dialog.
-	 * @details This class is user oriented. User can use function manipulate file dialog properties
-	 * and final generation function will produce Windows-understood data struct from this.
+	 * @brief The class representing the file dialog.
+	 * @details 
+	 * This class is served for programming using to describe every aspectes of the dialog.
+	 * For how to use this struct, see \ref dialog_helper.
 	*/
 	class FileDialog {
 	public:
@@ -158,27 +190,55 @@ namespace YYCC::DialogHelper {
 			m_Title(), m_InitFileName(), m_InitDirectory(),
 			m_HasTitle(false), m_HasInitFileName(false), m_HasInitDirectory(false) {}
 
+		/**
+		 * @brief Set the owner of dialog.
+		 * @param[in] owner The \c HWND pointing to the owner of dialog, or NULL to remove owner.
+		*/
 		void SetOwner(HWND owner) { m_Owner = owner; }
+		/**
+		 * @brief Set custom title of dialog
+		 * @param[in] title The string pointer to custom title, or nullptr to remove it.
+		*/
 		void SetTitle(const yycc_char8_t* title) {
 			if (m_HasTitle = title != nullptr)
 				m_Title = title;
 		}
+		/**
+		 * @brief Fetch the struct describing file filters for future configuration.
+		 * @return The reference to the struct describing file filters.
+		*/
 		FileFilters& ConfigreFileTypes() {
 			return m_FileTypes;
 		}
+		/**
+		 * @brief Set the index of default selected file filter.
+		 * @param[in] idx 
+		 * The index to default one.
+		 * This must be a valid index in file filters.
+		*/
 		void SetDefaultFileTypeIndex(size_t idx) { m_DefaultFileTypeIndex = idx; }
+		/**
+		 * @brief Set the initial file name of dialog
+		 * @details If set, the file name will always be same one when opening dialog.
+		 * @param[in] init_filename String pointer to initial file name, or nullptr to remove it.
+		*/
 		void SetInitFileName(const yycc_char8_t* init_filename) {
 			if (m_HasInitFileName = init_filename != nullptr)
 				m_InitFileName = init_filename;
 		}
+		/**
+		 * @brief Set the initial directory of dialog
+		 * @details If set, the opended directory will always be the same one when opening dialog
+		 * @param[in] init_dir 
+		 * String pointer to initial directory.
+		 * Invalid path or nullptr will remove this feature.
+		*/
 		void SetInitDirectory(const yycc_char8_t* init_dir) {
 			if (m_HasInitDirectory = init_dir != nullptr)
 				m_InitDirectory = init_dir;
 		}
 
-		/**
-		 * @brief Clear file dialog parameters for following re-use.
-		*/
+		/// @brief Clear file dialog parameters for following re-use.
 		void Clear() {
 			m_Owner = nullptr;
 			m_HasTitle = m_HasInitFileName = m_HasInitDirectory = false;
@@ -191,9 +251,11 @@ namespace YYCC::DialogHelper {
 		
 		/**
 		 * @brief Generate Windows dialog system used data struct.
-		 * @param win_result[out] The class holding the generated filter data struct.
+		 * @param[out] win_result The class receiving the generated filter data struct.
 		 * @return True if generation is success, otherwise false.
-		 * @remarks User should not call this function, this function is used in internal code.
+		 * @remarks 
+		 * Programmer should not call this function.
+		 * This function is used as YYCC internal code.
 		*/
 		bool Generate(WinFileDialog& win_result) const;
 
@@ -204,16 +266,41 @@ namespace YYCC::DialogHelper {
 		FileFilters m_FileTypes;
 		/**
 		 * @brief The default selected file type in dialog
-		 * @remarks Although Windows notice that this is a 1-based index,
-		 * but for universal experience, we order this is 0-based index.
+		 * @remarks 
+		 * The index Windows used is 1-based index.
+		 * But for universal experience, we order this is 0-based index.
+		 * And do convertion when generating Windows used struct.
 		*/
 		size_t m_DefaultFileTypeIndex;
 	};
 
+	/**
+	 * @brief Open the dialog which order user select single file to open.
+	 * @param[in] params The configuration of dialog.
+	 * @param[out] ret Full path to user selected file.
+	 * @return False if user calcel the operation or something went wrong, otherwise true.
+	*/
 	bool OpenFileDialog(const FileDialog& params, yycc_u8string& ret);
+	/**
+	 * @brief Open the dialog which order user select multiple file to open.
+	 * @param[in] params The configuration of dialog.
+	 * @param[out] ret The list of full path of user selected files.
+	 * @return False if user calcel the operation or something went wrong, otherwise true.
+	*/
 	bool OpenMultipleFileDialog(const FileDialog& params, std::vector<yycc_u8string>& ret);
+	/**
+	 * @brief Open the dialog which order user select single file to save.
+	 * @param[in] params The configuration of dialog.
+	 * @param[out] ret Full path to user selected file.
+	 * @return False if user calcel the operation or something went wrong, otherwise true.
+	*/
 	bool SaveFileDialog(const FileDialog& params, yycc_u8string& ret);
-
+	/**
+	 * @brief Open the dialog which order user select single directory to open.
+	 * @param[in] params The configuration of dialog.
+	 * @param[out] ret Full path to user selected directory.
+	 * @return False if user calcel the operation or something went wrong, otherwise true.
+	*/
 	bool OpenFolderDialog(const FileDialog& params, yycc_u8string& ret);
 
 }

src/EncodingHelper.hpp

@@ -10,7 +10,7 @@
 #endif
 
 /**
- * @brief The helper for all encoding aspects.
+ * @brief The helper for all encoding stuff.
  * @details
  * For more infomations about how to use the functions provided by this namespace,
  * please see \ref library_encoding and \ref encoding_helper.
@@ -19,7 +19,7 @@ namespace YYCC::EncodingHelper {
 
 #define _YYCC_U8(strl) u8 ## strl ///< The assistant macro for YYCC_U8.
 #define YYCC_U8(strl) (reinterpret_cast<const ::YYCC::yycc_char8_t*>(_YYCC_U8(strl))) ///< The macro for creating UTF8 string literal. See \ref library_encoding.
-#define YYCC_U8_CHAR(chr) (static_cast<YYCC::yycc_char8_t>(chr)) ///< The macro for casting normal char into YYCC UTF8 char type.
+#define YYCC_U8_CHAR(chr) (static_cast<YYCC::yycc_char8_t>(chr)) ///< The macro for casting ordinary char type into YYCC UTF8 char type.
 
 	const yycc_char8_t* ToUTF8(const char* src);
 	yycc_char8_t* ToUTF8(char* src);

src/ExceptionHelper.hpp

@@ -6,10 +6,7 @@
  * @brief Windows specific unhandled exception processor.
  * @details
  * This namespace is Windows specific. On other platforms, the whole namespace is unavailable.
- * 
- * This namespace allow user register unhandled exception handler on Windows
- * to output error log into \c stderr and log file, and generate coredump if possible.
- * This is useful for bug tracing on Windows, especially most Windows user are naive and don't know how to report bug.
+ * For how to utilize this namespace, please see \ref exception_helper.
  * 
 */
 namespace YYCC::ExceptionHelper {
@@ -20,9 +17,9 @@ namespace YYCC::ExceptionHelper {
 	 * This function will set an internal function as unhandled exception handler on Windows.
 	 * 
 	 * When unhandled exception raised, 
-	 * That internal function will output error stacktrace in standard output 
-	 * and log file (located in temp folder), and also generate a dump file 
-	 * in temp folder (for convenient debugging of developer when reporting bugs) if it can.
+	 * That internal function will output error stacktrace in standard output,
+	 * and generate log file and dump file in \c \%APPDATA\%/CrashDumps folder if it is possible.
+	 * (for convenient debugging of developer when reporting bugs.)
 	 * 
 	 * This function usually is called at the start of program.
 	*/
@@ -33,7 +30,7 @@ namespace YYCC::ExceptionHelper {
 	 * The reverse operation of Register().
 	 * 
 	 * This function and Register() should always be used as a pair.
-	 * You must call this function if you have called Register() before.
+	 * You must call this function to release reources if you have called Register().
 	 * 
 	 * This function usually is called at the end of program.
 	*/

src/FsPathPatch.hpp

@@ -3,21 +3,26 @@
 
 #include <filesystem>
 
+/**
+ * @brief \c std::filesystem::path related patches for UTF8 compatibility
+ * @details
+ * See also \ref fs_path_patch.
+*/
 namespace YYCC::FsPathPatch {
 	
 	/**
-	 * @brief Constructs the path from a UTF8 character sequence
-	 * @param[in] u8_path UTF8 path string for building this std::filesystem::path.
-	 * @return std::filesystem::path instance.
+	 * @brief Constructs \c std::filesystem::path from UTF8 path.
+	 * @param[in] u8_path UTF8 path string for building.
+	 * @return \c std::filesystem::path instance.
 	 * @exception std::invalid_argument Fail to parse given UTF8 string (maybe invalid?).
 	*/
 	std::filesystem::path FromUTF8Path(const yycc_char8_t* u8_path);
 
 	/**
-	 * @brief Returns the UTF8 representation of the pathname
-	 * @param path[in] The string to be output.
-	 * @return UTF8 encoded string representing given path.
-	 * @exception std::invalid_argument Fail to parse to UTF8 string.
+	 * @brief Returns the UTF8 representation of given \c std::filesystem::path.
+	 * @param[in] path The \c std::filesystem::path instance converting to UTF8 path.
+	 * @return The UTF8 representation of given \c std::filesystem::path.
+	 * @exception std::invalid_argument Fail to convert to UTF8 string.
 	*/
 	yycc_u8string ToUTF8Path(const std::filesystem::path& path);
 

src/IOHelper.hpp

@@ -4,6 +4,11 @@
 #include <cstdio>
 #include <filesystem>
 
+/**
+ * @brief Some IO related stuff
+ * @details
+ * See also \ref io_helper.
+*/
 namespace YYCC::IOHelper {
 	
 #if UINTPTR_MAX == UINT32_MAX
@@ -24,13 +29,13 @@ namespace YYCC::IOHelper {
 #endif
 
 	/**
-	 * @brief The UTF8 version of std::fopen.
+	 * @brief The UTF8 version of \c std::fopen.
 	 * @param[in] u8_filepath The UTF8 encoded path to the file to be opened.
 	 * @param[in] u8_mode UTF8 encoded mode string of the file to be opened.
 	 * @remarks
 	 * This function is suit for Windows because std::fopen do not support UTF8 on Windows.
 	 * On other platforms, this function will delegate request directly to std::fopen.
-	 * @return FILE* of the file to be opened, or nullptr if failed.
+	 * @return \c FILE* of the file to be opened, or nullptr if failed.
 	*/
 	FILE* UTF8FOpen(const yycc_char8_t* u8_filepath, const yycc_char8_t* u8_mode);
 	

src/ParserHelper.hpp

@@ -9,10 +9,24 @@
 #include <charconv>
 #include <array>
 
+/**
+ * @brief The helper involving convertion between arithmetic types (integral, floating point and bool) and string
+ * @details
+ * See also \ref parser_helper.
+*/
 namespace YYCC::ParserHelper {
 
 	// Reference: https://zh.cppreference.com/w/cpp/utility/from_chars
 
+	/**
+	 * @brief Try parsing given string to floating point types.
+	 * @tparam _Ty The type derived from floating point type.
+	 * @param[in] strl The string need to be parsed.
+	 * @param[out] num 
+	 * The variable receiving result.
+	 * There is no guarantee that the content is not modified when parsing failed.
+	 * @return True if success, otherwise false.
+	*/
 	template<typename _Ty, std::enable_if_t<std::is_floating_point_v<_Ty>, int> = 0>
 	bool TryParse(const yycc_u8string_view& strl, _Ty& num) {
 		auto [ptr, ec] = std::from_chars(
@@ -34,6 +48,16 @@ namespace YYCC::ParserHelper {
 			throw std::runtime_error("unreachable code.");
 		}
 	}
+	/**
+	 * @brief Try parsing given string to integral types.
+	 * @tparam _Ty The type derived from integral type.
+	 * @param[in] strl The string need to be parsed.
+	 * @param[out] num 
+	 * The variable receiving result.
+	 * There is no guarantee that the content is not modified when parsing failed.
+	 * @param[in] base integer base to use: a value between 2 and 36 (inclusive).
+	 * @return True if success, otherwise false.
+	*/
 	template<typename _Ty, std::enable_if_t<std::is_integral_v<_Ty> && !std::is_same_v<_Ty, bool>, int> = 0>
 	bool TryParse(const yycc_u8string_view& strl, _Ty& num, int base = 10) {
 		auto [ptr, ec] = std::from_chars(
@@ -55,6 +79,15 @@ namespace YYCC::ParserHelper {
 			throw std::runtime_error("unreachable code.");
 		}
 	}
+	/**
+	 * @brief Try parsing given string to bool types.
+	 * @tparam _Ty The type derived from bool type.
+	 * @param[in] strl The string need to be parsed ("true" or "false").
+	 * @param[out] num 
+	 * The variable receiving result.
+	 * There is no guarantee that the content is not modified when parsing failed.
+	 * @return True if success, otherwise false.
+	*/
 	template<typename _Ty, std::enable_if_t<std::is_same_v<_Ty, bool>, int> = 0>
 	bool TryParse(const yycc_u8string_view& strl, _Ty& num) {
 		if (strl == YYCC_U8("true")) num = true;
@@ -63,6 +96,15 @@ namespace YYCC::ParserHelper {
 		return true;
 	}
 
+	/**
+	 * @brief Parse given string to arithmetic types.
+	 * @tparam _Ty The type derived from arithmetic type.
+	 * @param[in] strl The string need to be parsed.
+	 * @return
+	 * The parsing result.
+	 * There is no guarantee about the content of this return value when parsing failed.
+	 * It may be any possible value but usually is its default value.
+	*/
 	template<typename _Ty, std::enable_if_t<std::is_arithmetic_v<_Ty>, int> = 0>
 	_Ty Parse(const yycc_u8string_view& strl) {
 		_Ty ret;
@@ -72,6 +114,12 @@ namespace YYCC::ParserHelper {
 
 	// Reference: https://en.cppreference.com/w/cpp/utility/to_chars
 
+	/**
+	 * @brief Return a string version of given arithmetic value.
+	 * @tparam _Ty The type derived from arithmetic type.
+	 * @param[in] num The value getting string version.
+	 * @return The string version of given value.
+	*/
 	template<typename _Ty, std::enable_if_t<std::is_arithmetic_v<_Ty> && !std::is_same_v<_Ty, bool>, int> = 0>
 	yycc_u8string ToString(_Ty num) {
 		std::array<yycc_char8_t, 64> buffer;
@@ -91,6 +139,12 @@ namespace YYCC::ParserHelper {
 			throw std::runtime_error("unreachable code.");
 		}
 	}
+	/**
+	 * @brief Return a string version of given bool value.
+	 * @tparam _Ty The type derived from bool type.
+	 * @param[in] num The value getting string version.
+	 * @return The string version of given value ("true" or "false").
+	*/
 	template<typename _Ty, std::enable_if_t<std::is_same_v<_Ty, bool>, int> = 0>
 	yycc_u8string ToString(_Ty num) {
 		if (num) return yycc_u8string(YYCC_U8("true"));

src/StringHelper.cpp

@@ -170,7 +170,7 @@ namespace YYCC::StringHelper {
 #pragma region Upper Lower
 
 	template<bool bIsToLower>
-	void GeneralStringLowerUpper(yycc_u8string& strl) {
+	static void GeneralStringLowerUpper(yycc_u8string& strl) {
 		// References:
 		// https://en.cppreference.com/w/cpp/algorithm/transform
 		// https://en.cppreference.com/w/cpp/string/byte/tolower

src/StringHelper.hpp

@@ -6,59 +6,141 @@
 #include <functional>
 #include <vector>
 
+/**
+ * @brief The helper containing string operations
+ * @details
+ * See also \ref string_helper.
+*/
 namespace YYCC::StringHelper {
 
+	/**
+	 * @brief Perform a string formatting operation.
+	 * @param[out] strl 
+	 * The string container receiving the result.
+	 * There is no guarantee that the content is not modified when function failed.
+	 * @param[in] format The format string.
+	 * @param[in] ... Argument list of format string.
+	 * @return True if success, otherwise false.
+	*/
 	bool Printf(yycc_u8string& strl, const yycc_char8_t* format, ...);
+	/**
+	 * @brief Perform a string formatting operation.
+	 * @param[out] strl 
+	 * The string container receiving the result.
+	 * There is no guarantee that the content is not modified when function failed.
+	 * @param[in] format The format string.
+	 * @param[in] argptr Argument list of format string.
+	 * @return True if success, otherwise false.
+	*/
 	bool VPrintf(yycc_u8string& strl, const yycc_char8_t* format, va_list argptr);
+	/**
+	 * @brief Perform a string formatting operation.
+	 * @param[in] format The format string.
+	 * @param[in] ... Argument list of format string.
+	 * @return The formatting result. Empty string if error happened.
+	*/
 	yycc_u8string Printf(const yycc_char8_t* format, ...);
+	/**
+	 * @brief Perform a string formatting operation.
+	 * @param[in] format The format string.
+	 * @param[in] argptr Argument list of format string.
+	 * @return The formatting result. Empty string if error happened.
+	*/
 	yycc_u8string VPrintf(const yycc_char8_t* format, va_list argptr);
 
+	/**
+	 * @brief Modify given string with all occurrences of substring \e old replaced by \e new.
+	 * @param[in,out] strl The string for replacing
+	 * @param[in] _from_strl The \e old string.
+	 * @param[in] _to_strl The \e new string.
+	*/
 	void Replace(yycc_u8string& strl, const yycc_char8_t* _from_strl, const yycc_char8_t* _to_strl);
+	/**
+	 * @brief Return a copy with all occurrences of substring \e old replaced by \e new.
+	 * @param[in] _strl The string for replacing
+	 * @param[in] _from_strl The \e old string.
+	 * @param[in] _to_strl The \e new string.
+	 * @return The result of replacement.
+	*/
 	yycc_u8string Replace(const yycc_char8_t* _strl, const yycc_char8_t* _from_strl, const yycc_char8_t* _to_strl);
 
 	/**
-	 * @brief The data provider of general Join function.
-	 * For the implementation of this function:
-	 * Function return true to continue join. otherwise return false to terminate join. 
-	 * The argument assigned in the calling returning false is not included.
-	 * During calling, implementation should assign the string view to the string need to be joined in given argument.
+	 * @brief The data provider of general join function.
+	 * @details
+	 * For programmer using lambda to implement this function pointer:
+	 * \li During calling, implementation should assign the reference of string view passed in argument
+	 * to the string which need to be joined.
+	 * \li Function return true to continue joining. otherwise return false to stop joining. 
+	 * The argument content assigned in the calling returning false is not included in join process.
 	*/
 	using JoinDataProvider = std::function<bool(yycc_u8string_view&)>;
 	/**
-	 * @brief General Join function.
-	 * @details This function use function pointer as a general data provider interface,
-	 * so this function suit for all types container, the user only need write a little bit adaption code.
-	 * @param fct_data[in] The function pointer to data provider.
-	 * @param decilmer[in] The decilmer.
-	 * @return A std::string instance which containing the join result.
+	 * @brief Universal join function.
+	 * @details
+	 * This function use function pointer as a general data provider interface,
+	 * so this function suit for all types container.
+	 * You can use this universal join function for any custom container by
+	 * using C++ lambda syntax to create a code block adapted to this function pointer.
+	 * @param[in] fct_data The function pointer in JoinDataProvider type prividing the data to be joined.
+	 * @param[in] decilmer The decilmer used for joining.
+	 * @return The result string of joining.
 	*/
 	yycc_u8string Join(JoinDataProvider fct_data, const yycc_char8_t* decilmer);
 	/**
-	 * @brief Specialized Join function for common used container.
-	 * @param data
-	 * @param decilmer
-	 * @param reversed
-	 * @return
+	 * @brief Specialized join function for \c std::vector.
+	 * @param[in] data The list to be joined.
+	 * @param[in] decilmer The decilmer used for joining.
+	 * @param[in] reversed True if this list should be joined in reversed order.
+	 * @return The result string of joining.
 	*/
 	yycc_u8string Join(const std::vector<yycc_u8string>& data, const yycc_char8_t* decilmer, bool reversed = false);
 
+	/**
+	 * @brief Return a copy of the string converted to lowercase.
+	 * @param[in] strl The string to be lowercase.
+	 * @return The copy of the string converted to lowercase.
+	*/
 	yycc_u8string Lower(const yycc_char8_t* strl);
+	/**
+	 * @brief Convert given string to lowercase.
+	 * @param[in,out] strl The string to be lowercase.
+	*/
 	void Lower(yycc_u8string& strl);
+	/**
+	 * @brief Return a copy of the string converted to uppercase.
+	 * @param[in] strl The string to be uppercase.
+	 * @return The copy of the string converted to uppercase.
+	*/
 	yycc_u8string Upper(const yycc_char8_t* strl);
+	/**
+	 * @brief Convert given string to uppercase.
+	 * @param[in,out] strl The string to be uppercase.
+	*/
 	void Upper(yycc_u8string& strl);
 
 	/**
-	 * @brief General Split function.
-	 * @param strl[in] The string need to be splitting.
-	 * If this is nullptr, the result will be empty.
-	 * @param _decilmer[in] The decilmer for splitting.
-	 * If decilmer is nullptr or zero length, the result will only have 1 element which is original string.
-	 * @return
-	 * @remarks This function may be low performance because it just a homebrew Split functon.
-	 * It can works in most toy cases but not suit for high performance scenario.
-	 * Also, this function will produce a copy of original string because it is not zero copy.
+	 * @brief Split given string with specified decilmer.
+	 * @param[in] strl The string need to be splitting.
+	 * @param[in] _decilmer The decilmer for splitting.
+	 * @return 
+	 * The split result.
+	 * \par
+	 * If given string is empty, or decilmer is nullptr or empty,
+	 * the result container will only contain 1 entry which is equal to given string.
 	*/
 	std::vector<yycc_u8string> Split(const yycc_u8string_view& strl, const yycc_char8_t* _decilmer);
+	/**
+	 * @brief Split given string with specified decilmer as string view.
+	 * @param[in] strl The string need to be splitting.
+	 * @param[in] _decilmer The decilmer for splitting.
+	 * @return 
+	 * The split result with string view format.
+	 * This will not produce any copy of original string.
+	 * \par
+	 * If given string is empty, or decilmer is nullptr or empty,
+	 * the result container will only contain 1 entry which is equal to given string.
+	 * @see Split(const yycc_u8string_view&, const yycc_char8_t*)
+	*/
 	std::vector<yycc_u8string_view> SplitView(const yycc_u8string_view& strl, const yycc_char8_t* _decilmer);
 
 }

src/WinFctHelper.hpp

@@ -9,10 +9,11 @@
 #include "WinImportSuffix.hpp"
 
 /**
- * @brief The helper providing assistance to Win32 functions.
+ * @brief The helper providing assistance of Win32 functions.
  * @details
  * This helper is Windows specific.
  * If current environment is not Windows, the whole namespace will be unavailable.
+ * See also \ref win_fct_helper
 */
 namespace YYCC::WinFctHelper {
 	
@@ -24,16 +25,16 @@ namespace YYCC::WinFctHelper {
 	 * 
 	 * This function is frequently used by DLL.
 	 * Because some design need the HANDLE of current module, not the host EXE loading your DLL.
-	 * For example, you may want to get the name of your built DLL at runtime, then you should pass current module HANDLE, not the HANDLE of EXE.
-	 * Or, if you want to get the path to your DLL, you also should pass current module HANDLE.
+	 * For example, you may want to get the path of your built DLL, or fetch resources from your DLL at runtime,
+	 * then you should pass current module HANDLE, not NULL or the HANDLE of EXE.
 	 * @return A Windows HANDLE pointing to current module, NULL if failed.
 	*/
 	HMODULE GetCurrentModule();
 
 	/**
-	 * @brief Get path to Windows temp folder.
-	 * @param[out] ret 
-	 * The variable receiving UTF8 encoded path to Windows temp folder.
+	 * @brief Get path to Windows temporary folder.
+	 * @details Windows temporary folder usually is the target of \%TEMP\%.
+	 * @param[out] ret The variable receiving UTF8 encoded path to Windows temp folder.
 	 * @return True if success, otherwise false.
 	*/
 	bool GetTempDirectory(yycc_u8string& ret);
@@ -41,20 +42,18 @@ namespace YYCC::WinFctHelper {
 	/**
 	 * @brief Get the file name of given module HANDLE
 	 * @param[in] hModule 
-	 * The HANDLE to the module where we want get file name.
-	 * It is same as the HANDLE parameter of \c GetModuleFileName.
-	 * @param[out] ret 
-	 * The variable receiving UTF8 encoded file name of given module.
+	 * The HANDLE to the module where you want to get file name.
+	 * It is same as the HANDLE parameter of Win32 \c GetModuleFileName.
+	 * @param[out] ret The variable receiving UTF8 encoded file name of given module.
 	 * @return True if success, otherwise false.
 	*/
 	bool GetModuleFileName(HINSTANCE hModule, yycc_u8string& ret);
 
 	/**
-	 * @brief Get the path to LOCALAPPDATA.
-	 * @details LOCALAPPDATA usually was used as putting local app data files
-	 * @param[out] ret 
-	 * The variable receiving UTF8 encoded path to LOCALAPPDATA.
-	 * @return 
+	 * @brief Get the path to \%LOCALAPPDATA\%.
+	 * @details \%LOCALAPPDATA\% usually was used as putting local app data files
+	 * @param[out] ret The variable receiving UTF8 encoded path to LOCALAPPDATA.
+	 * @return True if success, otherwise false.
 	*/
 	bool GetLocalAppData(yycc_u8string& ret);
 

src/YYCCInternal.hpp

@@ -26,8 +26,14 @@
 
 // Define the UTF8 char type we used.
 // And do a polyfill if no embedded char8_t type.
+
 #include <string>
 #include <string_view>
+
+/**
+ * @brief Library core namespace
+ * @details Almost library functions are located in this namespace.
+*/
 namespace YYCC {
 #if defined(__cpp_char8_t)
 	using yycc_char8_t = char8_t;
@@ -38,6 +44,27 @@ namespace YYCC {
 	using yycc_u8string = std::basic_string<yycc_char8_t>;
 	using yycc_u8string_view = std::basic_string_view<yycc_char8_t>;
 #endif
-	
 }
+/**
+	\typedef yycc_char8_t
+	\brief YYCC UTF8 char type.
+	\details
+	This char type is an alias to \c std::char8_t if your current C++ standard support it.
+	Otherwise it is defined as <TT>unsigned char</TT> as C++ 20 stdandard does.
+*/
+/**
+	\typedef yycc_u8string
+	\brief YYCC UTF8 string container type.
+	\details
+	This type is defined as \c std::basic_string<yycc_char8_t>.
+	It is equal to \c std::u8string if your current C++ standard support it.
+*/
+/**
+	\typedef yycc_u8string_view
+	\brief YYCC UTF8 string view type.
+	\details
+	This type is defined as \c std::basic_string_view<yycc_char8_t>.
+	It is equal to \c std::u8string_view if your current C++ standard support it.
+*/
+