#pragma once


#include <vector>
#include <list>
#include <string>
#include <functional>
#include <memory>
#include <optional>


#pragma warning (disable:4150)
//	删除指向不完整“boost::property_tree::basic_ptree<std::string, std::string, std::less<Key>>”类型的指针；没有调用析构函数
#pragma warning (disable:4251)
//	ECOM::Utility::BSTTree::m_Root: class“XDWHolder<boost::property_tree::ptree>”需要有 dll 接口由 class“ECOM::Utility::BSTTree”的客户端使用

namespace boost
{
	namespace property_tree
	{
		template < class Key, class Data, class KeyCompare>
		class basic_ptree;
		typedef basic_ptree <std::string, std::string, std::less <std::string>> ptree;
		typedef ptree  tTree;
//		typedef basic_ptree <std::string, eSTR::DString> tTree;
//		typedef basic_ptree <eSTR::DString, eSTR::DString> tTree;
	};
};


using namespace boost::property_tree;


#include "XDWHolder.tlh"
#include "XDWHolder.tli"

#ifndef BSTTree_EXPORTS
#define _BSTTree_API	_declspec(dllimport)
#else
#define _BSTTree_API	_declspec(dllexport)
#endif





#ifndef BSTTree_EXPORTS

#ifdef _WIN64

#ifdef _DEBUG
#pragma comment (lib, "ECOM.Utility.BSTTree64D.lib") 
#else
#pragma comment (lib, "ECOM.Utility.BSTTree64.lib") 
#endif

#else	//	X86

#ifdef _DEBUG
#pragma comment (lib, "ECOM.Utility.BSTTreeD.lib") 
#else
#pragma comment (lib, "ECOM.Utility.BSTTree.lib") 
#endif

#endif

#endif  //  BSTTree_EXPORTS





//-----------------------------------------------------------------------------
//		BSTTree
//	对 tTree 的封装
//	
//	不能用 std::unique_ptr, 因为 unique_ptr 需要知道 tTree 才能析构
//	因此这里用 XDWHolder
//-----------------------------------------------------------------------------


namespace ECOM::Utility
{
	class BSTTreeArray;


	class _BSTTree_API BSTTree
	{
		template <typename>  static constexpr bool dependent_false = false;

	protected:
		tTree * m_Tree;
		XDWHolder <tTree> m_Root;
		bool  m_bAttrib;

		friend class BSTXML;
		friend class BSTJSON;
		friend class BSTINI;
		friend class BSTSSV;
		friend class BSTTreeArray;

	private:
		BSTTree (XDWHolder <tTree> && from);

	public:
		BSTTree ();
		BSTTree (BSTTree && from);
		BSTTree (const BSTTree & from) = delete;
		virtual ~BSTTree ();

		BSTTree & operator = (BSTTree && from);
		BSTTree & operator = (const BSTTree & from) = delete;

	public:
		bool IsEmpty () const;
		operator bool () const { return ! IsEmpty (); }

	//	返回儿子节点的数量
		int  Size () const;

	//	数一数其中有多少个路径
		int  Count (const std::string & path) const;
		int  Count (const std::string_view & path) const  { return Count (std::string (path)); }

	protected:
		BSTTree __Into (const std::string & path) const;
		BSTTree __Into (const std::string & path, char sep) const;

	public:
		BSTTree Into (const std::string & path) const;
	//	BSTTree Into (const eSTR::DString & path) const;
		BSTTree Into (const std::string_view & path) const { return Into (std::string (path)); }

	public:
		BSTTree Into (const std::string & path, char sep) const
		{
			return __Into (path, sep);
		}

	public:
		BSTTree Attrib () const;

	protected:
		std::string TryAttribOf (const std::string & path, LPCSTR Def) const;
		std::string TryAttribOf (const std::string & path, const std::string & Def) const;

	public:
	#if 1
		template <typename T> T AttribOf (const std::string & path) const
		{
			return Attrib ().Get <T> (path);
		}

		template <typename T> T AttribOf (const std::string_view & path) const
		{
			return Attrib ().Get <T> (path);
		}
	#endif

	//	如果不写类型转换, 默认返回 std::string 类型
		std::string AttribOf (const std::string & path) const
		{
			return (TryAttribOf (path, std::string ()));
		}
		std::string AttribOf (const std::string_view & _path) const
		{
			std::string path { _path };
			return (TryAttribOf (path, std::string ()));
		}
		std::string AttribOf (const char * _path) const
		{
			std::string path { _path };
			return (TryAttribOf (path, std::string ()));
		}

	//	给定路径, 获取 Value
	public:
	///
	//	类型转换, 默认用的就是 eSTR::DString 的转换函数/模版
		template <typename T> T Get (const std::string_view & path) const
		{
			static_assert (dependent_false<T>);
		}

	//	偏特化
	//	template <> std::string Get (const std::string_view & path) const;

		template <> std::string       Get (const std::string_view & path) const { return TryGet (path, std::string ()); }
		template <> int               Get (const std::string_view & path) const { return TryGet (path, static_cast <int> (0)); }
		template <> unsigned int      Get (const std::string_view & path) const { return TryGet (path, static_cast <unsigned int> (0)); }
		template <> __int64           Get (const std::string_view & path) const { return TryGet (path, static_cast <__int64> (0)); }
		template <> unsigned __int64  Get (const std::string_view & path) const { return TryGet (path, static_cast <unsigned __int64> (0)); }
		template <> long              Get (const std::string_view & path) const { return TryGet (path, static_cast <long> (0)); }
		template <> unsigned long     Get (const std::string_view & path) const { return TryGet (path, static_cast <unsigned long> (0)); }
		template <> double            Get (const std::string_view & path) const { return TryGet (path, static_cast <double> (0.0)); }
		template <> float             Get (const std::string_view & path) const { return TryGet (path, static_cast <float> (0.0f)); }
		template <> bool              Get (const std::string_view & path) const { return TryGet (path, false); }


	//	如果不写类型转换, 默认返回 std::string 类型
		std::string Get (const std::string & path)      const { return Get <std::string> (path); }
		std::string Get (const std::string_view & path) const { return Get <std::string> (path); }
	//	std::string Get (const char * path)             const { return Get <std::string> (path); }
	//  上述函数引起编译器错误: 重载函数定义不明, 因此注释掉
	///



	//	给定路径, 获取 Value, 但是返回 optional
	public:
		std::optional <std::string> GetOpt (const std::string_view & path) const
		{
			return GetOpt (std::string (path));
		}

		std::optional <std::string> GetOpt (const std::string & path) const;

	public:
		int  GetArray (const std::string_view & Key, std::vector <std::string> * arStr);
		int  GetArray (const std::string_view & Key, std::list   <std::string> * arStr);

	public:
	//	带默认值的函数操作符重载
	//	eSTR::DString operator () (const std::string_view & path, LPCSTR Def)        const { return eSTR::DString (TryGet (path, Def)); }
		bool          operator () (const std::string_view & path, bool Def)          const { return TryGet (path, Def); }
		int           operator () (const std::string_view & path, int  Def)          const { return TryGet (path, Def); }
		unsigned int  operator () (const std::string_view & path, unsigned int  Def) const { return TryGet (path, Def); }
		__int64       operator () (const std::string_view & path, __int64  Def)      const { return TryGet (path, Def); }
		long          operator () (const std::string_view & path, long Def)          const { return TryGet (path, Def); }
		float         operator () (const std::string_view & path, float Def)         const { return TryGet (path, Def); }
		double        operator () (const std::string_view & path, double Def)        const { return TryGet (path, Def); }

	protected:
	///	如果找不到, 就用 Def 代替
		std::string       TryGet (const std::string_view & path, const char * Def) const;
		std::string       TryGet (const std::string_view & path, const std::string_view & Def) const;
		std::string       TryGet (const std::string_view & path, const std::string & Def) const;
		int               TryGet (const std::string_view & path, int Def) const;
		unsigned int      TryGet (const std::string_view & path, unsigned int Def) const;
		__int64           TryGet (const std::string_view & path, __int64 Def) const;
		unsigned __int64  TryGet (const std::string_view & path, unsigned __int64 Def) const;
		long              TryGet (const std::string_view & path, long Def) const;
		unsigned long     TryGet (const std::string_view & path, unsigned long Def) const;
		double            TryGet (const std::string_view & path, double Def) const;
		float             TryGet (const std::string_view & path, float Def) const;
		bool              TryGet (const std::string_view & path, bool Def) const;

		template <typename TR, typename T>
		TR _TryGet (const std::string_view & path, const T & Def) const;
	///

	public:
		template <typename T> T GetIf (const std::string_view & path, const T & Def) const
		{
			auto rc = TryGet (path, Def);
			return rc;
		}

	//<	针对 LPCSTR Def 的特殊处理, 例如 int Port = CH.GetIf ("Port", "22");
		template <typename T> T GetIf (const std::string_view & path, LPCSTR Def) const
		{
			auto rc = TryGet (path, Def);
			return rc;
		}

		// 例如 DString AE = Ch.GetIf ("AE", "DROC");
		template <> std::string GetIf (const std::string_view & path, LPCSTR Def) const
		{
			auto rc = TryGet (path, Def);
			return (rc);
		}

		std::string GetIf (const std::string_view & path, LPCSTR Def) const
		{
			return GetIf <std::string> (path, Def);
		}
	//>

		std::string GetIf (const std::string_view & path, const std::string & Def) const
		{
			return GetIf <std::string> (path, Def.c_str ());
		}


	//<	针对 StringView 的特殊处理, 不能返回 StringView
		std::string GetIf (const std::string_view & path, const std::string_view & Def) const
		{
			auto rc = TryGet (path, Def);
			return (rc);
		}
	//>


	public:
		template <typename T> T GetData () const
		{
			static_assert (dependent_false<T>, "Invalid type in BSTTtee.GetData ()");
		}
		template <> std::string GetData () const;
		std::string GetData () const { return GetData <std::string> (); }

	protected:
		template <typename T> std::optional <T> _GetValue () const;

	public:
		template <typename T> std::optional <T> GetValue () const
		{
			static_assert (dependent_false<T>, "Invalid type in BSTTtee.GetValue ()");
		}

		template <> std::optional <std::string>   GetValue () const;
		template <> std::optional <int>           GetValue () const;
		template <> std::optional <unsigned int>  GetValue () const;
		template <> std::optional <long>          GetValue () const;
		template <> std::optional <unsigned long> GetValue () const;
		template <> std::optional <__int64>       GetValue () const;
		template <> std::optional <unsigned __int64> GetValue () const;
		template <> std::optional <double>        GetValue () const;
		template <> std::optional <float>         GetValue () const;
		template <> std::optional <bool>          GetValue () const;

		std::optional <std::string> GetValue () const { return GetValue <std::string> (); }

	public:
	//	如果原来没有这一项, 就增加, 如果原来有, 就更新. 返回 this
		BSTTree & SetValue (LPCSTR value);
		BSTTree & SetValue (const std::string & value);
	//	BSTTree & SetValue (const eSTR::DString & value);
		BSTTree & SetValue (const std::string_view & value);
		BSTTree & SetValue (int value);
		BSTTree & SetValue (unsigned int value);
		BSTTree & SetValue (long value);
		BSTTree & SetValue (unsigned long value);
		BSTTree & SetValue (__int64 value);
		BSTTree & SetValue (unsigned __int64 value);
		BSTTree & SetValue (double value);
		BSTTree & SetValue (bool value);
		BSTTree & SetValue (void * ptr);

	public:
	//	如果原来没有这一项, 就增加, 如果原来有, 就更新. 返回 this
		BSTTree & Put (const std::string_view & path, LPCSTR value);
		BSTTree & Put (const std::string_view & path, const std::string & value);
		BSTTree & Put (const std::string_view & path, const std::string_view & value);
		BSTTree & Put (const std::string_view & path, int value);
		BSTTree & Put (const std::string_view & path, unsigned int value);
		BSTTree & Put (const std::string_view & path, long value);
		BSTTree & Put (const std::string_view & path, unsigned long value);
		BSTTree & Put (const std::string_view & path, __int64 value);
		BSTTree & Put (const std::string_view & path, unsigned __int64 value);
		BSTTree & Put (const std::string_view & path, double value);
		BSTTree & Put (const std::string_view & path, bool value);
		BSTTree & Put (const std::string_view & path, void * ptr);

	public:
	//	添加新项, 返回 this
		BSTTree & Add (const std::string_view & path, LPCSTR value);
		BSTTree & Add (const std::string_view & path, const std::string & value);
		BSTTree & Add (const std::string_view & path, const std::string_view & value);
		BSTTree & Add (const std::string_view & path, int value);
		BSTTree & Add (const std::string_view & path, unsigned int value);
		BSTTree & Add (const std::string_view & path, long value);
		BSTTree & Add (const std::string_view & path, unsigned long value);
		BSTTree & Add (const std::string_view & path, __int64 value);
		BSTTree & Add (const std::string_view & path, unsigned __int64 value);
		BSTTree & Add (const std::string_view & path, double value);
		BSTTree & Add (const std::string_view & path, bool value);
		BSTTree & Add (const std::string_view & path, void * ptr);

	// 数组/列表
	public:
		template <typename T>
		BSTTree & Add (const std::string_view & path, const std::list <T> & lst);

		template <typename T>
		BSTTree & Add (const std::string_view & path, const std::vector <T> & lst);

	protected:
		template <typename T>
		BSTTree & __Add (const std::string_view & path, const T & value);

		template <typename T>
		BSTTree & __Put (const std::string_view & path, const T & value);


	public:
	//	特殊用途, 把 child 作为子节点
		bool Add (const std::string & name, const BSTTree & child);

	protected:
		class Proxy
		{
		public:
			Proxy (BSTTree * Tree, std::string_view Key)
			{
				m_Tree = Tree;
				m_Key = Key;
			}

			Proxy (BSTTree * Tree, const std::string & Key)
			{
				m_Tree = Tree;
				m_Key = Key;
			}

			Proxy (const Proxy & from)
			{
				m_Tree = from.m_Tree;
				m_Key  = from.m_Key;
			}

			Proxy (Proxy && from)
			{
				m_Tree = from.m_Tree;
				m_Key  = from.m_Key;
			}

			~Proxy () = default;

		public:
			inline std::string Get () const
			{
				return m_Tree->Get (m_Key);
			}

			inline operator std::string () const
			{
				return m_Tree->Get (m_Key);
			}

			inline operator void * () const
			{
				return reinterpret_cast <void *> (m_Tree->Get <UINT_PTR> (m_Key));
			}

			inline operator DWORD () const
			{
				return m_Tree->Get <DWORD> (m_Key);
			}

			inline operator __int64 () const
			{
				return m_Tree->Get <__int64> (m_Key);
			}

			inline operator unsigned __int64 () const
			{
				return m_Tree->Get <unsigned __int64> (m_Key);
			}

			inline operator int () const
			{
				return m_Tree->Get <int> (m_Key);
			}

			inline operator unsigned int () const
			{
				return m_Tree->Get <unsigned int> (m_Key);
			}

			inline operator long () const
			{
				return m_Tree->Get <long> (m_Key);
			}

			inline operator bool () const
			{
				return m_Tree->Get <bool> (m_Key);
			}

			inline operator float () const
			{
				return m_Tree->Get <float> (m_Key);
			}

			inline operator double () const
			{
				return m_Tree->Get <double> (m_Key);
			}

		public:
			inline Proxy & operator = (LPCSTR Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}
	#if 0
			inline Proxy & operator = (PCWSTR Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}
	#endif

			inline Proxy & operator = (const std::string_view & Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (const std::string & Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (__int64 Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (UINT_PTR Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (DWORD Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (int Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (bool Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (void * Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (float Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

			inline Proxy & operator = (double Value)
			{
				m_Tree->Put (m_Key, Value);
				return (*this);
			}

		protected:
			BSTTree * m_Tree;
			std::string_view m_Key;
		};


		//	函数操作符重载, 下标操作符重载
	public:
		Proxy operator [] (std::string_view Key)
		{
			return Proxy (this, Key);
		}

		Proxy operator () (std::string_view Key)
		{
			return Proxy (this, Key);
		}

	public:
	//	添加一个子节点, 返回的是这个子节点
		BSTTree AddChild (const std::string & path);
		BSTTree AddChild (const std::string_view path)
		{
			return AddChild (std::string (path));
		}

	public:
	//	如果原来没有这一项, 就增加, 如果原来有, 就更新, 返回的是这个子节点
		BSTTree PutChild (const std::string & path);
		BSTTree PutChild (const std::string_view & path)
		{
			return PutChild (std::string (path));
		}

	public:
		//	增加子节点, 但是子节点是一个数组
		BSTTreeArray AddChildArray (const std::string & path);
		BSTTreeArray AddChildArray (const std::string_view & path);
		//BSTTreeArray AddChildArray (LPCSTR path);  // 易导致编译错误: 重载调用不明确

	public:
	//	无条件删除指定的项, 当然包括下面的全部子项
		bool Delete (const std::string_view & path);

	//	当 Pred 返回 true 时, 删除
		bool Delete (std::function <bool (const std::string & path, BSTTree & xml)> pred);

	public:
	//	查找, 判断某个路径是否存在
		bool IsExist (const std::string & path);
		bool IsExist (const std::string_view & path)  { return IsExist (std::string (path)); }


	public:
	//	如果非空, 就执行指定的函数
		template <typename Fun, typename... arg>
		inline bool Do (const Fun & fun, arg... e)
		{
			if (IsEmpty ())  return false;
			fun (*this, e...);
			return true;
		}

	public:
	//	获取第一个/最后一个, 如果存在, 就调用指定指定的函数
	//	bool OnFirst (std::function <void (const std::string & path, BSTTree & xml)> fun);
	//	bool OnLast  (std::function <void (const std::string & path, BSTTree & xml)> fun);

	//	返回第一个子节点/最后一个子节点. 如果不存在, 或者为空, 返回的 XML 将是空白的
		BSTTree First ();
		BSTTree Last ();

	///	非模板版本 (2021-11-04)
	//  测试表明, 如果用之前版本的模板, 可能导致断言失败.
	//	具体原因很难找, 可能是因为 Iter 内部的实例是在本模块内分配的, 但是却由调用者来释放.
	///

		//	类似迭代器的调用, 返回调用次数
		int  ForEach   (std::function <void (const std::string & tagname, BSTTree &)>);

		//	搜索指定的 tagname, 如果找到, 就执行对应的函数
		int  ForEachOn (const std::string & tagname, std::function <void (BSTTree &)>);
		int  ForEachOn (const std::string_view & tagname, std::function <void (BSTTree &)>);

	private:
		template <typename T>
		int  _ForEachOn (const T & tagname, std::function <void (BSTTree &)>);

	public:
		//	寻找满足条件的第一个, 如果找到, 就执行对应的函数
		bool First (std::function <bool (const std::string& tagname, BSTTree&)> pred);

	public:
	//	转换成 容器, 比如 std::list <BSTTree>
		template <typename T>
		inline T To ()
		{
			T rc;

			if (IsEmpty ())
				return rc;

			auto Iter = GetIterator ();

			for (;;)
			{
				auto pair = Iter ();
				auto & name = pair.first;
				auto & ptr = pair.second;

				BSTTree * xml = ptr.get ();
				if (xml == nullptr)		//	迭代结束
					break;

				rc.push_back (std::move (*xml));
			}

			return rc;
		}

		//	转换成 vector <BSTTree>
		inline std::vector <BSTTree> ToVector ()
		{
			return To <std::vector <BSTTree> > ();
		}

		//	转换成 list <BSTTree>
		inline std::list <BSTTree> ToList ()
		{
			return To <std::list <BSTTree> > ();
		}

	public:
		static bool IsAttrib (const std::string & tagName);  // return tagName == XMLATTR

	private:
	//	迭代函数返回 pair, 参数 2 用指针, 其目的是让上层知道: 何时迭代结束
		using IterArgType = std::pair <std::string, std::unique_ptr <BSTTree>>;
		using IterFuncType = std::function <IterArgType ()>;
		IterFuncType GetIterator ();

		static BSTTree _TreeNodeToMe (tTree & node);
		static const std::string XMLATTR_DOT;	// = "<xmlattr>.";
		static const std::string XMLATTR;		// = "<xmlattr>";

	};


	//-----------------------------------------------------------------------------
	//		BSTTreeArray
	//-----------------------------------------------------------------------------

	class _BSTTree_API BSTTreeArray : public BSTTree
	{
	private:
		BSTTreeArray (BSTTree & parent, const std::string & path);

	public:
		BSTTreeArray (BSTTreeArray && with);
	
	private:
		BSTTree & m_Parent;
		const std::string m_Path;

		friend class BSTTree;

	public:
		~BSTTreeArray ();

	public:
		BSTTreeArray & Add (const BSTTree & tree);

		template <typename T>
		BSTTreeArray & Add (const std::string_view & key, const T & value)
		{
			BSTTree CH;
			CH.Add (key, value);
			return Add (std::move (CH));
		}

	//	最后应该调用 End, 调用 End 之后, 就无法调用 Add 了 (即使调用也无效)
	//	析构函数也会调用 End
		void End ();
	};

}


namespace ECOM::Utility
{
	//-----------------------------------------------------------------------------
	//		BSTXML, BSTJSON, BSTINI
	//  全部是 public 的静态函数
	//  以下函数被删除, 因为容易引起编译错误: 决策不明 (例如 LoadFile (DString xx));
	//  static BSTTree LoadFile (const wchar_t * szFileName)
	//	static BSTTree LoadFile (LPCSTR szFileName)
	//	static int  SaveFile (BSTTree & Tree, const wchar_t * szFileName)
	//	static int  SaveFile (BSTTree & Tree, LPCSTR szFileName)
	//-----------------------------------------------------------------------------


	//-----------------------------------------------------------------------------
	//		BSTXML
	//-----------------------------------------------------------------------------

	class _BSTTree_API BSTXML
	{
	public:
		//	文件和字符串, 默认是 UTF8 编码
		static BSTTree LoadFile (const std::wstring & szFileName);
		static BSTTree LoadFile (const std::wstring_view & szFileName)
		{
			return LoadFile (std::wstring (szFileName));
		}

		static BSTTree LoadFile (const std::string & szFileName);
		static BSTTree LoadFile (const std::string_view & szFileName)
		{
			return LoadFile (std::string (szFileName));
		}

		static BSTTree FromString (const std::string & doc);
		static BSTTree FromString (const std::string_view & doc);

		//	返回: 写入的字节数
		static int  SaveFile (const BSTTree & Tree, const std::wstring_view & szFileName);
		static int  SaveFile (const BSTTree & Tree, const std::wstring & szFileName)
		{
			return SaveFile (Tree, std::wstring_view (szFileName));
		}
		static int  SaveFile (const BSTTree & Tree, const std::string_view & szFileName);
		static int  SaveFile (const BSTTree & Tree, const std::string & szFileName)
		{
			return SaveFile (Tree, std::string_view (szFileName));
		}

	public:
		//	转换成字符串, 默认是 UTF8 编码
		static std::string ToString (const BSTTree & Tree);

	};


	//-----------------------------------------------------------------------------
	//		BSTJSON
	//-----------------------------------------------------------------------------

	class _BSTTree_API BSTJSON
	{
	public:
		//	文件和字符串, 默认是 UTF8 编码
		static BSTTree LoadFile (const std::wstring & szFileName);
		static BSTTree LoadFile (const std::wstring_view & szFileName)
		{
			return LoadFile (std::wstring (szFileName));
		}

		static BSTTree LoadFile (const std::string & szFileName);
		static BSTTree LoadFile (const std::string_view & szFileName)
		{
			return LoadFile (std::string (szFileName));
		}

		static int  SaveFile (const BSTTree & Tree, const std::string_view & szFileName);
		static int  SaveFile (const BSTTree & Tree, const std::string & szFileName)
		{
			return SaveFile (Tree, std::string_view (szFileName));
		}

		static BSTTree FromString (const std::string & doc);
		static BSTTree FromString (const std::string_view & doc);
		//static BSTTree FromString (LPCSTR doc);

		//	返回: 写入的字节数
		static int  SaveFile (const BSTTree & Tree, const std::wstring & szFileName);
		static int  SaveFile (const BSTTree & Tree, const std::wstring_view & szFileName)
		{
			return SaveFile (Tree, std::wstring (szFileName));
		}

	public:
		//	转换成字符串, 默认是 UTF8 编码
		static std::string ToString (const BSTTree & Tree);
	
	};


	//-----------------------------------------------------------------------------
	//		BSTINI
	//-----------------------------------------------------------------------------

	class _BSTTree_API BSTINI
	{
	public:
		//	文件和字符串, 默认是 UTF8 编码
		static BSTTree LoadFile (const std::wstring & szFileName);
		static BSTTree LoadFile (const std::wstring_view & szFileName)
		{
			return LoadFile (std::wstring (szFileName));
		}

		static BSTTree LoadFile (const std::string & szFileName);
		static BSTTree LoadFile (const std::string_view & szFileName)
		{
			return LoadFile (std::string (szFileName));
		}

		static BSTTree FromString (const std::string & doc);
		static BSTTree FromString (const std::string_view & doc);
		//static BSTTree FromString (LPCSTR doc);

		//	返回: 写入的字节数
		static int  SaveFile (const BSTTree & Tree, const std::wstring & szFileName);
		static int  SaveFile (const BSTTree & Tree, const std::wstring_view & szFileName)
		{
			return SaveFile (Tree, std::wstring (szFileName));
		}
		static int  SaveFile (const BSTTree & Tree, const std::string_view & szFileName);
		static int  SaveFile (const BSTTree & Tree, const std::string & szFileName)
		{
			return SaveFile (Tree, std::string_view (szFileName));
		}

	public:
		//	转换成字符串, 默认是 UTF8 编码
		static std::string ToString (const BSTTree & Tree);
	};


	//-----------------------------------------------------------------------------
	//		BSTSSV
	//  以分号分隔, 例如 K1=V1; K2=V2; K3=V3
	//-----------------------------------------------------------------------------

	class _BSTTree_API BSTSSV
	{
	public:
		//	文件和字符串, 默认是 UTF8 编码
		static BSTTree LoadFile (const std::wstring & szFileName);
		static BSTTree LoadFile (const std::wstring_view & szFileName)
		{
			return LoadFile (std::wstring (szFileName));
		}

		static BSTTree LoadFile (const std::string & szFileName);
		static BSTTree LoadFile (const std::string_view & szFileName)
		{
			return LoadFile (std::string (szFileName));
		}

		static BSTTree FromString (const std::string & doc);
		static BSTTree FromString (const std::string_view & doc);
		//static BSTTree FromString (LPCSTR doc);

		//	返回: 写入的字节数
		static int  SaveFile (const BSTTree & Tree, const std::wstring & szFileName);
		static int  SaveFile (const BSTTree & Tree, const std::wstring_view & szFileName)
		{
			return SaveFile (Tree, std::wstring (szFileName));
		}
		static int  SaveFile (const BSTTree & Tree, const std::string_view & szFileName);
		static int  SaveFile (const BSTTree & Tree, const std::string & szFileName)
		{
			return SaveFile (Tree, std::string_view (szFileName));
		}

	public:
		//	转换成字符串, 默认是 UTF8 编码
		static std::string ToString (const BSTTree & Tree);
	};


}



namespace ECOM::Utility
{
	template <typename T>
	inline BSTTree & BSTTree::Add (const std::string_view & path, const std::list <T> & lst)
	{
		if (! m_Tree)  return (*this);

		try
		{
			auto CHArray = this->AddChildArray (path);
			std::string emp;
			for (const auto & it : lst)
			{
				ECOM::Utility::BSTTree CH;
				CH.Put (emp, it);
				CHArray.Add (std::move (CH));
			}

			CHArray.End ();
		}
		catch (...)
		{
		}

		return (*this);
	}

	template <typename T>
	inline BSTTree & BSTTree::Add (const std::string_view & path, const std::vector <T> & lst)
	{
		if (! m_Tree)  return (*this);

		try
		{
			auto CHArray = this->AddChildArray (path);
			std::string emp;
			for (const auto & it : lst)
			{
				ECOM::Utility::BSTTree CH;
				CH.Put (emp, it);
				CHArray.Add (std::move (CH));
			}

			CHArray.End ();
		}
		catch (...)
		{
		}

		return (*this);
	}

}