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194 lines
6.2 KiB
194 lines
6.2 KiB
// This is a part of the Microsoft Foundation Classes C++ library.
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// Copyright (c) 1992-2001 Microsoft Corporation, All Rights Reserved
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// All rights reserved.
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//
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// This source code is only intended as a supplement to the
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// Microsoft Foundation Classes Reference and related
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// electronic documentation provided with the library.
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// See these sources for detailed information regarding the
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// Microsoft Foundation Classes product.
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#ifndef _SNMPSTR_H_
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#define _SNMPSTR_H_
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#include "snmpstd.h"
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#include <tchar.h>
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struct CStringData
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{
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long nRefs; // reference count
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int nDataLength;
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int nAllocLength;
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// TCHAR data[nAllocLength]
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TCHAR* data()
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{ return (TCHAR*)(this+1); }
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};
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class CString
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{
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public:
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// Constructors
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CString();
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CString(const CString& stringSrc);
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CString(TCHAR ch, int nRepeat = 1);
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CString(LPCSTR lpsz);
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CString(LPCWSTR lpsz);
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CString(LPCTSTR lpch, int nLength);
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CString(const unsigned char* psz);
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// Attributes & Operations
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// as an array of characters
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int GetLength() const;
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BOOL IsEmpty() const;
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void Empty(); // free up the data
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TCHAR GetAt(int nIndex) const; // 0 based
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TCHAR operator[](int nIndex) const; // same as GetAt
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void SetAt(int nIndex, TCHAR ch);
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operator LPCTSTR() const; // as a C string
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// overloaded assignment
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const CString& operator=(const CString& stringSrc);
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const CString& operator=(TCHAR ch);
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#ifdef _UNICODE
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const CString& operator=(char ch);
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#endif
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const CString& operator=(LPCSTR lpsz);
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const CString& operator=(LPCWSTR lpsz);
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const CString& operator=(const unsigned char* psz);
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// string concatenation
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const CString& operator+=(const CString& string);
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const CString& operator+=(TCHAR ch);
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#ifdef _UNICODE
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const CString& operator+=(char ch);
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#endif
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const CString& operator+=(LPCTSTR lpsz);
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friend CString AFXAPI operator+(const CString& string1,
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const CString& string2);
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friend CString AFXAPI operator+(const CString& string, TCHAR ch);
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friend CString AFXAPI operator+(TCHAR ch, const CString& string);
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#ifdef _UNICODE
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friend CString AFXAPI operator+(const CString& string, char ch);
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friend CString AFXAPI operator+(char ch, const CString& string);
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#endif
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friend CString AFXAPI operator+(const CString& string, LPCTSTR lpsz);
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friend CString AFXAPI operator+(LPCTSTR lpsz, const CString& string);
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// string comparison
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int Compare(LPCTSTR lpsz) const; // straight character
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int CompareNoCase(LPCTSTR lpsz) const; // ignore case
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int Collate(LPCTSTR lpsz) const; // NLS aware
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// simple sub-string extraction
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CString Mid(int nFirst, int nCount) const;
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CString Mid(int nFirst) const;
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CString Left(int nCount) const;
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CString Right(int nCount) const;
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CString SpanIncluding(LPCTSTR lpszCharSet) const;
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CString SpanExcluding(LPCTSTR lpszCharSet) const;
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// upper/lower/reverse conversion
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void MakeUpper();
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void MakeLower();
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void MakeReverse();
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// trimming whitespace (either side)
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void TrimRight();
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void TrimLeft();
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// searching (return starting index, or -1 if not found)
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// look for a single character match
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int Find(TCHAR ch) const; // like "C" strchr
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int ReverseFind(TCHAR ch) const;
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int FindOneOf(LPCTSTR lpszCharSet) const;
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// look for a specific sub-string
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int Find(LPCTSTR lpszSub) const; // like "C" strstr
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// simple formatting
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void AFX_CDECL Format(LPCTSTR lpszFormat, ...);
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#ifndef _MAC
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// formatting for localization (uses FormatMessage API)
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void AFX_CDECL FormatMessage(LPCTSTR lpszFormat, ...);
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#endif
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#ifndef _UNICODE
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// ANSI <-> OEM support (convert string in place)
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void AnsiToOem();
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void OemToAnsi();
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#endif
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// OLE BSTR support (use for OLE automation)
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BSTR AllocSysString() const;
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BSTR SetSysString(BSTR* pbstr) const;
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// Access to string implementation buffer as "C" character array
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LPTSTR GetBuffer(int nMinBufLength);
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void ReleaseBuffer(int nNewLength = -1);
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LPTSTR GetBufferSetLength(int nNewLength);
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void FreeExtra();
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// Use LockBuffer/UnlockBuffer to turn refcounting off
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LPTSTR LockBuffer();
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void UnlockBuffer();
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// Implementation
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public:
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~CString();
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int GetAllocLength() const;
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protected:
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LPTSTR m_pchData; // pointer to ref counted string data
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// implementation helpers
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CStringData* GetData() const;
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void Init();
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void AllocCopy(CString& dest, int nCopyLen, int nCopyIndex, int nExtraLen) const;
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void AllocBuffer(int nLen);
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void AssignCopy(int nSrcLen, LPCTSTR lpszSrcData);
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void ConcatCopy(int nSrc1Len, LPCTSTR lpszSrc1Data, int nSrc2Len, LPCTSTR lpszSrc2Data);
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void ConcatInPlace(int nSrcLen, LPCTSTR lpszSrcData);
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void FormatV(LPCTSTR lpszFormat, va_list argList);
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void CopyBeforeWrite();
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void AllocBeforeWrite(int nLen);
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void Release();
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static void PASCAL Release(CStringData* pData);
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static int PASCAL SafeStrlen(LPCTSTR lpsz);
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};
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// Compare helpers
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bool AFXAPI operator==(const CString& s1, const CString& s2);
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bool AFXAPI operator==(const CString& s1, LPCTSTR s2);
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bool AFXAPI operator==(LPCTSTR s1, const CString& s2);
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bool AFXAPI operator!=(const CString& s1, const CString& s2);
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bool AFXAPI operator!=(const CString& s1, LPCTSTR s2);
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bool AFXAPI operator!=(LPCTSTR s1, const CString& s2);
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bool AFXAPI operator<(const CString& s1, const CString& s2);
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bool AFXAPI operator<(const CString& s1, LPCTSTR s2);
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bool AFXAPI operator<(LPCTSTR s1, const CString& s2);
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bool AFXAPI operator>(const CString& s1, const CString& s2);
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bool AFXAPI operator>(const CString& s1, LPCTSTR s2);
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bool AFXAPI operator>(LPCTSTR s1, const CString& s2);
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bool AFXAPI operator<=(const CString& s1, const CString& s2);
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bool AFXAPI operator<=(const CString& s1, LPCTSTR s2);
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bool AFXAPI operator<=(LPCTSTR s1, const CString& s2);
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bool AFXAPI operator>=(const CString& s1, const CString& s2);
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bool AFXAPI operator>=(const CString& s1, LPCTSTR s2);
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bool AFXAPI operator>=(LPCTSTR s1, const CString& s2);
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// conversion helpers
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int AFX_CDECL _wcstombsz(char* mbstr, const wchar_t* wcstr, size_t count);
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int AFX_CDECL _mbstowcsz(wchar_t* wcstr, const char* mbstr, size_t count);
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// Globals
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extern TCHAR afxChNil;
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const CString& AFXAPI AfxGetEmptyString();
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#define afxEmptyString AfxGetEmptyString()
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#endif
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