/** 
 *  @file		NFStringGenericConversion.h
 *  @brief		¹®ÀÚ¿­ ÄÁ¹öÆà Ŭ·¡½º
 *  @remarks	
 *  @author		°­µ¿¸í(edith2580@gmail.com)
 *  @date		2009-04-02
 */

#pragma once

#include "NFTypes.h"

namespace Nave { 

	/**

	Conversions work like


	To<float>("123");
	To<float>(L"123");

	To<std::string>(L"hello world");
	To<std::wstring>("hello world");

	*/

	unsigned int Hash(const WCHAR* str);
	unsigned int Hash(const CHAR* str);

	typedef std::pair<std::string::const_iterator,std::string::const_iterator> stringIteratorPair;
	typedef std::pair<std::wstring::const_iterator,std::wstring::const_iterator> wstringIteratorPair;

	template <typename T1, typename T2> T1 To(T2 value);
	//generic conversion functions from string to actual type, also supports single(ascii)-wide(unicode conversions) character, if conversion to
	//some type is not supported you will get a LINKING error
	template <typename T> T To(const char* str);
	template <typename T> inline T To(char* str)						{ return To<T>((const char*)str); }
	template <typename T> inline T To(const std::string& str)			{ return To<T>(str.c_str()); }
	template <typename T>  T To(const stringIteratorPair& StrPair);

	template <typename T> T To(const wchar_t* wstr);
	template <typename T> inline T To(wchar_t* wstr)					{ return To<T>((const wchar_t*)wstr); }
	template <typename T> inline T To(const std::wstring& wstr)			{ return To<T>(wstr.c_str()); }
	template <typename T> T To(const wstringIteratorPair& StrPair);


	//methods for converting between upper and lower case, supports both single and wide byte conversions
	template <typename fc> inline void ToUpperCase(fc& s) { std::transform(s.begin(),s.end(),s.begin(),toupper); }
	template <typename fc> inline void ToLowerCase(fc& s) { std::transform(s.begin(),s.end(),s.begin(),tolower); }

	template <typename T> inline float	ToFloat(const T& p)				{ return To<float>(p); }
	template <typename T> inline float	ToFloat(const T* p)				{ return To<float>(p); }

	template <typename T> inline double	ToDouble(const T& p)			{ return To<double>(p); }
	template <typename T> inline double	ToDouble(const T* p)			{ return To<double>(p); }

	template <typename T> inline int	ToInt(const T& p)				{ return To<int>(p); }
	template <typename T> inline int	ToInt(const T* p)				{ return To<int>(p); }

	template <typename T> inline float2	ToFloat2(const T& p)			{ return To<float2>(p); }
	template <typename T> inline float2	ToFloat2(const T* p)			{ return To<float2>(p); }

	template <typename T> inline float3	ToFloat3(const T& p)			{ return To<float3>(p); }
	template <typename T> inline float3	ToFloat3(const T* p)			{ return To<float3>(p); }

	template <typename T> inline float4	ToFloat4(const T& p)			{ return To<float4>(p); }
	template <typename T> inline float4	ToFloat4(const T* p)			{ return To<float4>(p); }

	//@deprecated: convenience methods for single - wide byte conversions
	inline Nave::String	ToString(const std::string p)	
	{ 
		return To<std::wstring>(p);
	}
	inline Nave::String	ToString(const std::wstring p)	
	{ 
		return p;
	}

	template <typename T> inline Nave::String	ToNumber(const T& p)	
	{
		Nave::String pstr = To<Nave::String>(p);
		return ToString(pstr);
	}
	template <typename T> inline Nave::String	ToNumber(const T* p)	
	{
		Nave::String pstr = To<Nave::String>(p);
		return ToString(pstr);
	}

	template <typename T> inline std::string	ToASCII(const T& p)		{ return To<std::string>(p); }
	template <typename T> inline std::string	ToASCII(const T* p)		{ return To<std::string>(p); }

	template <typename T> inline std::wstring	ToUnicode(const T& p)	{ return To<std::wstring>(p); }
	template <typename T> inline std::wstring	ToUnicode(const T* p)	{ return To<std::wstring>(p); }

}