//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2010, Beijing Tangent Software Co. Ltd.
// = FileName	:	TDbfString 类
// = Version	:	ver1.0
// = Author		:	gjm
// = CreateDate	:	2010-07-06
// = Description:	以std::string实现，内部数据只能是char。目的是与dbf类相匹配。
// = Maintainers:
//-----------------------------------------------------------------------------+

#include <string>
#if !defined(_TDBFSTRING_H__INCLUDED_)
#define _TDBFSTRING_H__INCLUDED_

class CTDbfString
{
public:
	CTDbfString():m_str(""){};
	CTDbfString(const TCHAR			*pszStr);
	CTDbfString(const std::string		&str);
	CTDbfString(const CString		&str);
	CTDbfString(const std::wstring		&str);
	CTDbfString(const CTDbfString	&str);
#if defined(UNICODE) || defined(_UNICODE)
	CTDbfString(const char			*pszStr):m_str(pszStr){}
	CTDbfString& operator = (const char *pszstr){m_str = pszstr;return *this;}
#else
	CTDbfString(const wchar_t		*pszStr);
	CTDbfString& operator = (const wchar_t *pszstr);
#endif

	~CTDbfString(){};

	CTDbfString& operator = (const CTDbfString	&str);
	CTDbfString& operator = (const CString		&str);
	CTDbfString& operator = (const std::string		&str);
	CTDbfString& operator = (const std::wstring		&str);
	CTDbfString& operator = (const TCHAR		*pszstr);

	bool operator >		(const CTDbfString	&str){return (m_str > str.toString());}
	bool operator <		(const CTDbfString	&str){return (m_str < str.toString());}
	bool operator ==	(const CTDbfString	&str){return (m_str == str.toString());}
	bool operator !=	(const CTDbfString	&str){return (m_str != str.toString());}

	const char* toLPCSTR	(){return m_str.c_str();}
	CString 	toCString	(){return CString(m_str.c_str());}
	std::string		toString	() const {return m_str;}
	BSTR		toBSTR		(){return (toCString().AllocSysString());}
	size_t		GetLength	(){return m_str.size();}
	
	//modify by xlc on 101015 vc6.0无clear函数
	//void		Empty		(){m_str.clear();}
	void		Empty		()
	{
#if ADS == 15
		m_str.erase(m_str.begin(),m_str.end());
#else
		m_str.clear();
#endif
	}

	bool		IsEmpty		(){return m_str.empty();}
	char		GetAt		(size_t t) {return m_str.at(t);}
private:
	std::string	m_str;
};

#endif