atsstring.h

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}

inline void CAtsString::MakeReverse()
{
	CopyBeforeWrite();
	_cstrrev(m_pchData);
}

inline void CAtsString::SetAt(int nIndex, TCHAR ch)
{
	ATLASSERT(nIndex >= 0);
	ATLASSERT(nIndex < GetData()->nDataLength);

	CopyBeforeWrite();
	m_pchData[nIndex] = ch;
}

#ifndef _UNICODE
inline void CAtsString::AnsiToOem()
{
	CopyBeforeWrite();
	::AnsiToOem(m_pchData, m_pchData);
}
inline void CAtsString::OemToAnsi()
{
	CopyBeforeWrite();
	::OemToAnsi(m_pchData, m_pchData);
}
#endif

inline CAtsString::CAtsString(TCHAR ch, int nLength)
{
	ATLASSERT(!_istlead(ch));    // can't create a lead byte string
	Init();
	if (nLength >= 1)
	{
		if(AllocBuffer(nLength))
		{
#ifdef _UNICODE
			for (int i = 0; i < nLength; i++)
				m_pchData[i] = ch;
#else
			memset(m_pchData, ch, nLength);
#endif
		}
	}
}

inline CAtsString::CAtsString(LPCTSTR lpch, int nLength)
{
	Init();
	if (nLength != 0)
	{
		if(AllocBuffer(nLength))
			memcpy(m_pchData, lpch, nLength * sizeof(TCHAR));
	}
}

#ifdef _UNICODE
inline CAtsString::CAtsString(LPCSTR lpsz, int nLength)
{
	Init();
	if (nLength != 0)
	{
		if(AllocBuffer(nLength))
		{
			int n = ::MultiByteToWideChar(CP_ACP, 0, lpsz, nLength, m_pchData, nLength + 1);
			ReleaseBuffer((n >= 0) ? n : -1);
		}
	}
}
#else //_UNICODE
inline CAtsString::CAtsString(LPCWSTR lpsz, int nLength)
{
	Init();
	if (nLength != 0)
	{
		if(AllocBuffer(nLength * 2))
		{
			int n = ::WideCharToMultiByte(CP_ACP, 0, lpsz, nLength, m_pchData, (nLength * 2) + 1, NULL, NULL);
			ReleaseBuffer((n >= 0) ? n : -1);
		}
	}
}
#endif //!_UNICODE

inline const CAtsString& CAtsString::operator=(TCHAR ch)
{
	ATLASSERT(!_istlead(ch));    // can't set single lead byte
	AssignCopy(1, &ch);
	return *this;
}

inline CAtsString __stdcall operator+(const CAtsString& string1, TCHAR ch)
{
	CAtsString s;
	s.ConcatCopy(string1.GetData()->nDataLength, string1.m_pchData, 1, &ch);
	return s;
}

inline CAtsString __stdcall operator+(TCHAR ch, const CAtsString& string)
{
	CAtsString s;
	s.ConcatCopy(1, &ch, string.GetData()->nDataLength, string.m_pchData);
	return s;
}

inline CAtsString CAtsString::Mid(int nFirst) const
{
	return Mid(nFirst, GetData()->nDataLength - nFirst);
}

inline CAtsString CAtsString::Mid(int nFirst, int nCount) const
{
	// out-of-bounds requests return sensible things
	if (nFirst < 0)
		nFirst = 0;
	if (nCount < 0)
		nCount = 0;

	if (nFirst + nCount > GetData()->nDataLength)
		nCount = GetData()->nDataLength - nFirst;
	if (nFirst > GetData()->nDataLength)
		nCount = 0;

	CAtsString dest;
	AllocCopy(dest, nCount, nFirst, 0);
	return dest;
}

inline CAtsString CAtsString::Right(int nCount) const
{
	if (nCount < 0)
		nCount = 0;
	else if (nCount > GetData()->nDataLength)
		nCount = GetData()->nDataLength;

	CAtsString dest;
	AllocCopy(dest, nCount, GetData()->nDataLength-nCount, 0);
	return dest;
}

inline CAtsString CAtsString::Left(int nCount) const
{
	if (nCount < 0)
		nCount = 0;
	else if (nCount > GetData()->nDataLength)
		nCount = GetData()->nDataLength;

	CAtsString dest;
	AllocCopy(dest, nCount, 0, 0);
	return dest;
}

// strspn equivalent
inline CAtsString CAtsString::SpanIncluding(LPCTSTR lpszCharSet) const
{
	ATLASSERT(_IsValidString(lpszCharSet));
	return Left(_cstrspn(m_pchData, lpszCharSet));
}

// strcspn equivalent
inline CAtsString CAtsString::SpanExcluding(LPCTSTR lpszCharSet) const
{
	ATLASSERT(_IsValidString(lpszCharSet));
	return Left(_cstrcspn(m_pchData, lpszCharSet));
}

inline int CAtsString::ReverseFind(TCHAR ch) const
{
	// find last single character
	LPTSTR lpsz = _cstrrchr(m_pchData, (_TUCHAR)ch);

	// return -1 if not found, distance from beginning otherwise
	return (lpsz == NULL) ? -1 : (int)(lpsz - m_pchData);
}

// find a sub-string (like strstr)
inline int CAtsString::Find(LPCTSTR lpszSub) const
{
	return Find(lpszSub, 0);
}

inline int CAtsString::Find(LPCTSTR lpszSub, int nStart) const
{
	ATLASSERT(_IsValidString(lpszSub));

	int nLength = GetData()->nDataLength;
	if (nStart > nLength)
		return -1;

	// find first matching substring
	LPTSTR lpsz = _cstrstr(m_pchData + nStart, lpszSub);

	// return -1 for not found, distance from beginning otherwise
	return (lpsz == NULL) ? -1 : (int)(lpsz - m_pchData);
}

inline BOOL CAtsString::FormatV(LPCTSTR lpszFormat, va_list argList)
{
	ATLASSERT(_IsValidString(lpszFormat));

	enum _FormatModifiers
	{
		FORCE_ANSI =	0x10000,
		FORCE_UNICODE =	0x20000,
		FORCE_INT64 =	0x40000
	};

	va_list argListSave = argList;

	// make a guess at the maximum length of the resulting string
	int nMaxLen = 0;
	for (LPCTSTR lpsz = lpszFormat; *lpsz != '\0'; lpsz = ::CharNext(lpsz))
	{
		// handle '%' character, but watch out for '%%'
		if (*lpsz != '%' || *(lpsz = ::CharNext(lpsz)) == '%')
		{
			// this is instead of _tclen()
#if !defined(_UNICODE) && defined(_MBCS)
			nMaxLen += (int)(::CharNext(lpsz) - lpsz);
#else
			nMaxLen++;
#endif
			continue;
		}

		int nItemLen = 0;

		// handle '%' character with format
		int nWidth = 0;
		for (; *lpsz != '\0'; lpsz = ::CharNext(lpsz))
		{
			// check for valid flags
			if (*lpsz == '#')
				nMaxLen += 2;   // for '0x'
			else if (*lpsz == '*')
				nWidth = va_arg(argList, int);
			else if (*lpsz == '-' || *lpsz == '+' || *lpsz == '0' || *lpsz == ' ')
				;
			else // hit non-flag character
				break;
		}
		// get width and skip it
		if (nWidth == 0)
		{
			// width indicated by
			nWidth = _cstrtoi(lpsz);
			for (; *lpsz != '\0' && _cstrisdigit(*lpsz); lpsz = ::CharNext(lpsz))
				;
		}
		ATLASSERT(nWidth >= 0);

		int nPrecision = 0;
		if (*lpsz == '.')
		{
			// skip past '.' separator (width.precision)
			lpsz = ::CharNext(lpsz);

			// get precision and skip it
			if (*lpsz == '*')
			{
				nPrecision = va_arg(argList, int);
				lpsz = ::CharNext(lpsz);
			}
			else
			{
				nPrecision = _cstrtoi(lpsz);
				for (; *lpsz != '\0' && _cstrisdigit(*lpsz); lpsz = ::CharNext(lpsz))
					;
			}
			ATLASSERT(nPrecision >= 0);
		}

		// should be on type modifier or specifier
		int nModifier = 0;
		if(lpsz[0] == _T('I') && lpsz[1] == _T('6') && lpsz[2] == _T('4'))
		{
			lpsz += 3;
			nModifier = FORCE_INT64;
		}
		else
		{
			switch (*lpsz)
			{
			// modifiers that affect size
			case 'h':
				nModifier = FORCE_ANSI;
				lpsz = ::CharNext(lpsz);
				break;
			case 'l':
				nModifier = FORCE_UNICODE;
				lpsz = ::CharNext(lpsz);
				break;

			// modifiers that do not affect size
			case 'F':
			case 'N':
			case 'L':
				lpsz = ::CharNext(lpsz);
				break;
			}
		}

		// now should be on specifier
		switch (*lpsz | nModifier)
		{
		// single characters
		case 'c':
		case 'C':
			nItemLen = 2;
			va_arg(argList, TCHAR);
			break;
		case 'c' | FORCE_ANSI:
		case 'C' | FORCE_ANSI:
			nItemLen = 2;
			va_arg(argList, char);
			break;
		case 'c' | FORCE_UNICODE:
		case 'C' | FORCE_UNICODE:
			nItemLen = 2;
			va_arg(argList, WCHAR);
			break;

		// strings
		case 's':
		{
			LPCTSTR pstrNextArg = va_arg(argList, LPCTSTR);
			if (pstrNextArg == NULL)
			{
				nItemLen = 6;  // "(null)"
			}
			else
			{
				nItemLen = lstrlen(pstrNextArg);
				nItemLen = max(1, nItemLen);
			}
			break;
		}

		case 'S':
		{
#ifndef _UNICODE
			LPWSTR pstrNextArg = va_arg(argList, LPWSTR);
			if (pstrNextArg == NULL)
			{
				nItemLen = 6;  // "(null)"
			}
			else
			{
				nItemLen = (int)wcslen(pstrNextArg);
				nItemLen = max(1, nItemLen);
			}
#else
			LPCSTR pstrNextArg = va_arg(argList, LPCSTR);
			if (pstrNextArg == NULL)
			{
				nItemLen = 6; // "(null)"
			}
			else
			{
				nItemLen = lstrlenA(pstrNextArg);
				nItemLen = max(1, nItemLen);
			}
#endif
			break;
		}

		case 's' | FORCE_ANSI:
		case 'S' | FORCE_ANSI:
		{
			LPCSTR pstrNextArg = va_arg(argList, LPCSTR);
			if (pstrNextArg == NULL)
			{
				nItemLen = 6; // "(null)"
			}
			else
			{
				nItemLen = lstrlenA(pstrNextArg);
				nItemLen = max(1, nItemLen);
			}
			break;
		}

		case 's' | FORCE_UNICODE:
		case 'S' | FORCE_UNICODE:
		{
			LPWSTR pstrNextArg = va_arg(argList, LPWSTR);
			if (pstrNextArg == NULL)
			{
				nItemLen = 6; // "(null)"
			}
			else
			{
				nItemLen = (int)wcslen(pstrNextArg);
				nItemLen = max(1, nItemLen);
			}
			break;
		}
		}

		// adjust nItemLen for strings
		if (nItemLen != 0)
		{
			nItemLen = max(nItemLen, nWidth);
			if (nPrecision != 0)
				nItemLen = min(nItemLen, nPrecision);
		}
		else
		{
			switch (*lpsz)
			{
			// integers
			case 'd':
			case 'i':
			case 'u':
			case 'x':
			case 'X':
			case 'o':
				if (nModifier & FORCE_INT64)
					va_arg(argList, __int64);
				else
					va_arg(argList, int);
				nItemLen = 32;
				nItemLen = max(nItemLen, nWidth + nPrecision);
				break;

#ifndef _ATL_USE_CAtsString_FLOAT
			case 'e':
			case 'f':
			case 'g':
			case 'G':
				ATLASSERT(!"Floating point (%%e, %%f, %%g, and %%G) is not supported by the WTL::CAtsString class.");
#ifndef _DEBUG
				::OutputDebugString(_T("Floating point (%%e, %%f, %%g, and %%G) is not supported by the WTL::CAtsString class."));
				::DebugBreak();
#endif //!_DEBUG
				break;
#else //_ATL_USE_CAtsString_FLOAT
			case 'e':
			case 'g':
			case 'G':
				va_arg(argList, double);
				nItemLen = 128;
				nItemLen = max(nItemLen, nWidth + nPrecision);
				break;
			case 'f':
				{
					double f;
					LPTSTR pszTemp;

					// 312 == strlen("-1+(309 zeroes).")
					// 309 zeroes == max precision of a double
					// 6 == adjustment in case precision is not specified,
					//   which means that the precision defaults to 6
					pszTemp = (LPTSTR)_alloca(max(nWidth, 312 + nPrecision + 6));

					f = va_arg(argList, double);
					_stprintf(pszTemp, _T( "%*.*f" ), nWidth, nPrecision + 6, f);
					nItemLen = _tcslen(pszTemp);
				}
				break;
#endif //_ATL_USE_CAtsString_FLOAT

			case 'p':
				va_arg(argList, void*);
				nItemLen = 32;
				nItemLen = max(nItemLen, nWidth + nPrecision);
				break;

			// no output
			case 'n':
				va_arg(argList, int*);
				break;

			default:
				ATLASSERT(FALSE);  // unknown formatting option
			}
		}

		// adjust nMaxLen for output nItemLen
		nMaxLen += nItemLen;
	}

	if(GetBuffer(nMaxLen) == NULL)
		return FALSE;
#ifndef _ATL_USE_CAtsString_FLOAT
	int nRet = wvsprintf(m_pchData, lpszFormat, argListSave);
#else //_ATL_USE_CAtsString_FLOAT
	int nRet = _vstprintf(m_pchData, lpszFormat, argListSave);
#endif //_ATL_USE_CAtsString_FLOAT
	nRet;	// ref
	ATLASSERT(nRet <= GetAllocLength());
	ReleaseBuffer();

	va_end(argListSave);
	return TRUE;
}

// formatting (using wsprintf style formatting)
inline BOOL __cdecl CAtsString::Format(LPCTSTR lpszFormat, ...)
{
	ATLASSERT(_IsValidString(lpszFormat));

	va_list argList;
	va_start(argList, lpszFormat);
	BOOL bRet = FormatV(lpszFormat, argList);
	va_end(argList);
	return bRet;
}

inline BOOL __cdecl CAtsString::Format(UINT nFormatID, ...)
{
	CAtsString strFormat;
	BOOL bRet = strFormat.LoadString(nFormatID);
	ATLASSERT(bRet != 0);

	va_list argList;
	va_start(argList, nFormatID);
	bRet = FormatV(strFormat, argList);
	va_end(argList);
	return bRet;
}

// formatting (using FormatMessage style formatting)
inline BOOL __cdecl CAtsString::FormatMessage(LPCTSTR lpszFormat, ...)
{
	// format message into temporary buffer lpszTemp
	va_list argList;
	va_start(argList, lpszFormat);
	LPTSTR lpszTemp;
	BOOL bRet = TRUE;

	if (::FormatMessage(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
			lpszFormat, 0, 0, (LPTSTR)&lpszTemp, 0, &argList) == 0 || lpszTemp == NULL)
		bRet = FALSE;

	// assign lpszTemp into the resulting string and free the temporary
	*this = lpszTemp;
	LocalFree(lpszTemp);
	va_end(argList);
	return bRet;
}

inline BOOL __cdecl CAtsString::FormatMessage(UINT nFormatID, ...)
{
	// get format string from string table
	CAtsString strFormat;
	BOOL bRetTmp = strFormat.LoadString(nFormatID);
	bRetTmp;	// ref
	ATLASSERT(bRetTmp != 0);

	// format message into temporary buffer lpszTemp
	va_list argList;
	va_start(argList, nFormatID);
	LPTSTR lpszTemp;
	BOOL bRet = TRUE;

	if (::FormatMessage(FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER,
			strFormat, 0, 0, (LPTSTR)&lpszTemp, 0, &argList) == 0 || lpszTemp == NULL)
		bRet = FALSE;

	// assign lpszTemp into the resulting string and free lpszTemp
	*this = lpszTemp;
	LocalFree(lpszTemp);
	va_end(argList);
	return bRet;
}

inline void CAtsString::TrimRight()
{
	CopyBeforeWrite();

	// find beginning of trailing spaces by starting at beginning (DBCS aware)
	LPTSTR lpsz = m_pchData;
	LPTSTR lpszLast = NULL;
	while (*lpsz != '\0')
	{
		if (_cstrisspace(*lpsz))
		{