269 lines
10 KiB
C
269 lines
10 KiB
C
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//***************************************************************************
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//
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// Copyright (c) 1997-2001 Microsoft Corporation, All Rights Reserved
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//
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// CHSTRING.h
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//
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// Purpose: Utility library version of MFC CString
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//
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//***************************************************************************
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#if _MSC_VER > 1000
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#pragma once
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#endif
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#ifndef _CHSTRING_H
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#define _CHSTRING_H
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/////////////////////////////////////////////////////////////////////////////
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#include <windows.h>
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#include <limits.h>
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#include <tchar.h>
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#include <polarity.h>
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#pragma warning( disable : 4290 ) // Ignore 'C++ Exception Specification ignored'
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#include <ProvExce.h>
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/////////////////////////////////////////////////////////////////////////////
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struct _DOUBLE { BYTE doubleBits[sizeof(double)]; };
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#ifdef FRAMEWORK_ALLOW_DEPRECATED
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void POLARITY WINAPI SetCHStringResourceHandle(HINSTANCE handle);
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#endif
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/////////////////////////////////////////////////////////////////////////////
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// CHString formatting
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/////////////////////////////////////////////////////////////////////////////
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#define TCHAR_ARG WCHAR
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#define WCHAR_ARG WCHAR
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#define CHAR_ARG char
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#if defined(_68K_) || defined(_X86_)
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#define DOUBLE_ARG _DOUBLE
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#else
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#define DOUBLE_ARG double
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#endif
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struct CHStringData
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{
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long nRefs;
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int nDataLength;
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int nAllocLength;
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WCHAR* data()
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{
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return (WCHAR*)(this+1);
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}
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};
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/////////////////////////////////////////////////////////////////////////////
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class POLARITY CHString
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{
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protected:
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LPWSTR m_pchData; // pointer to ref counted string data
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protected:
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// implementation helpers
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CHStringData* GetData() const; // returns data pointer
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void Init();
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void AllocCopy(CHString& dest, int nCopyLen, int nCopyIndex, int nExtraLen) const throw ( CHeap_Exception ) ;
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void AllocBuffer(int nLen) throw ( CHeap_Exception ) ;
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void AssignCopy(int nSrcLen, LPCWSTR lpszSrcData) throw ( CHeap_Exception ) ;
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void ConcatCopy(int nSrc1Len, LPCWSTR lpszSrc1Data, int nSrc2Len, LPCWSTR lpszSrc2Data) throw ( CHeap_Exception ) ;
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void ConcatInPlace(int nSrcLen, LPCWSTR lpszSrcData);
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void CopyBeforeWrite() throw ( CHeap_Exception ) ;
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void AllocBeforeWrite(int nLen) throw ( CHeap_Exception ) ;
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void Release();
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static void WINAPI Release(CHStringData* pData);
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static inline int WINAPI SafeStrlen(LPCWSTR lpsz) { return (lpsz == NULL) ? 0 : wcslen(lpsz); }
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// Helper function used to load resource into lpszBuf buffer.
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#ifdef FRAMEWORK_ALLOW_DEPRECATED
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int LoadStringW(UINT nID, LPWSTR lpszBuf, UINT nMaxBuf) throw ( CHeap_Exception ) ;
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#endif
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public:
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// Constructors/Destruction
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CHString();
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CHString(const CHString& stringSrc);
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CHString(WCHAR ch, int nRepeat = 1) throw ( CHeap_Exception ) ;
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CHString(LPCSTR lpsz) throw ( CHeap_Exception ) ;
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CHString(LPCWSTR lpsz) throw ( CHeap_Exception ) ;
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CHString(LPCWSTR lpch, int nLength) throw ( CHeap_Exception ) ;
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inline CHString(const unsigned char* lpsz) { Init(); *this = (LPCSTR)lpsz; }
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~CHString();
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// Functions
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void SetAt(int nIndex, WCHAR ch) throw ( CHeap_Exception ) ;
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void Empty();
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// inlines
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inline int GetLength() const { return GetData()->nDataLength; }
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inline BOOL IsEmpty() const { return GetData()->nDataLength == 0; }
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#if (!defined DEBUG && !defined _DEBUG)
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inline WCHAR GetAt(int nIndex) const{ return m_pchData[nIndex]; }
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inline WCHAR operator[](int nIndex) const{ return m_pchData[nIndex]; }
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#else
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WCHAR GetAt(int nIndex) const;
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WCHAR operator[](int nIndex) const;
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#endif
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inline operator LPCWSTR() const { return m_pchData; }
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inline int GetAllocLength() const { return GetData()->nAllocLength; }
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// overloaded assignment
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const CHString& operator=(const CHString& stringSrc) throw ( CHeap_Exception ) ;
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const CHString& operator=(WCHAR ch) throw ( CHeap_Exception ) ;
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const CHString& operator=(LPCSTR lpsz) throw ( CHeap_Exception ) ;
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const CHString& operator=(LPCWSTR lpsz) throw ( CHeap_Exception ) ;
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inline const CHString& operator=(const unsigned char* lpsz) throw ( CHeap_Exception ) { *this = (LPCSTR)lpsz; return *this; }
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inline const CHString& operator=(CHString *p) throw ( CHeap_Exception ) { *this = *p; return *this; }
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inline const CHString& operator=(char ch) throw ( CHeap_Exception ) { *this = (WCHAR)ch; return *this; }
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inline const CHString& CHString::operator+=(char ch) throw ( CHeap_Exception ) { *this += (WCHAR)ch; return *this; }
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friend inline CHString operator+(const CHString& string, char ch) throw ( CHeap_Exception ) { return string + (WCHAR)ch; }
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friend inline CHString operator+(char ch, const CHString& string) throw ( CHeap_Exception ) { return (WCHAR)ch + string; }
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const CHString& operator+=(const CHString& string) throw ( CHeap_Exception ) ;
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const CHString& operator+=(WCHAR ch) throw ( CHeap_Exception ) ;
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const CHString& operator+=(LPCWSTR lpsz) throw ( CHeap_Exception ) ;
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friend CHString POLARITY WINAPI operator+(const CHString& string1, const CHString& string2) throw ( CHeap_Exception ) ;
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friend CHString POLARITY WINAPI operator+(const CHString& string, WCHAR ch) throw ( CHeap_Exception ) ;
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friend CHString POLARITY WINAPI operator+(WCHAR ch, const CHString& string) throw ( CHeap_Exception ) ;
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friend CHString POLARITY WINAPI operator+(const CHString& string, LPCWSTR lpsz) throw ( CHeap_Exception ) ;
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friend CHString POLARITY WINAPI operator+(LPCWSTR lpsz, const CHString& string) throw ( CHeap_Exception ) ;
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// string comparison
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int Compare(LPCWSTR lpsz) const;
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inline int CompareNoCase(LPCWSTR lpsz) const
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{
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// ignore case
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return _wcsicmp(m_pchData, lpsz);
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} // MBCS/Unicode aware
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inline int Collate(LPCWSTR lpsz) const
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{
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// NLS aware
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// CHString::Collate is often slower than Compare but is MBSC/Unicode
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// aware as well as locale-sensitive with respect to sort order.
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return wcscoll(m_pchData, lpsz);
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} // locale sensitive
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// Load string from resource file.
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#ifdef FRAMEWORK_ALLOW_DEPRECATED
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BOOL LoadStringW(UINT nID) throw ( CHeap_Exception ) ;
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#endif
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// Access to string implementation buffer as "C" character array
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LPWSTR GetBuffer(int nMinBufLength) throw ( CHeap_Exception ) ;
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void ReleaseBuffer(int nNewLength = -1) throw ( CHeap_Exception ) ;
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LPWSTR GetBufferSetLength(int nNewLength) throw ( CHeap_Exception ) ;
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void FreeExtra() throw ( CHeap_Exception ) ;
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// Use LockBuffer/UnlockBuffer to turn refcounting off
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LPWSTR LockBuffer() ;
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void UnlockBuffer();
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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(WCHAR ch) const; // like "C" strchr
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int FindOneOf(LPCWSTR lpszCharSet) const;
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int ReverseFind(WCHAR ch) const;
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// look for a specific sub-string
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int Find(LPCWSTR lpszSub) const; // like "C" strstr
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// upper/lower/reverse conversion
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void MakeUpper() throw ( CHeap_Exception ) ;
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void MakeLower() throw ( CHeap_Exception ) ;
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void MakeReverse() throw ( CHeap_Exception ) ;
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// simple sub-string extraction
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CHString Mid(int nFirst, int nCount) const throw ( CHeap_Exception ) ;
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CHString Mid(int nFirst) const throw ( CHeap_Exception ) ;
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CHString Left(int nCount) const throw ( CHeap_Exception ) ;
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CHString Right(int nCount) const throw ( CHeap_Exception ) ;
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CHString SpanIncluding(LPCWSTR lpszCharSet) const throw ( CHeap_Exception ) ;
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CHString SpanExcluding(LPCWSTR lpszCharSet) const throw ( CHeap_Exception ) ;
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// trimming whitespace (either side)
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void TrimRight() throw ( CHeap_Exception ) ;
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void TrimLeft() throw ( CHeap_Exception ) ;
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// printf-like formatting using passed string
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void __cdecl Format(LPCWSTR lpszFormat, ...) throw ( CHeap_Exception ) ;
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void FormatV(LPCWSTR lpszFormat, va_list argList);
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// printf-like formatting using referenced string resource
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#ifdef FRAMEWORK_ALLOW_DEPRECATED
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void __cdecl Format(UINT nFormatID, ...) throw ( CHeap_Exception ) ;
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#endif
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// format using FormatMessage API on passed string
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// Warning: if you pass string inserts to this function, they must
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// be LPCSTRs on Win9x and LPCWSTRs on NT.
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void __cdecl FormatMessageW(LPCWSTR lpszFormat, ...) throw ( CHeap_Exception ) ;
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// format using FormatMessage API on referenced string resource
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// Warning: if you pass string inserts to this function, they must
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// be LPCSTRs on Win9x and LPCWSTRs on NT.
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#ifdef FRAMEWORK_ALLOW_DEPRECATED
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void __cdecl FormatMessageW(UINT nFormatID, ...) throw ( CHeap_Exception ) ;
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#endif
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#ifndef _NO_BSTR_SUPPORT
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// OLE BSTR support (use for OLE automation)
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BSTR AllocSysString() const throw ( CHeap_Exception ) ;
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#endif
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};
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inline BOOL operator==(const CHString& s1, const CHString& s2) { return s1.Compare(s2) == 0; }
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inline BOOL operator==(const CHString& s1, LPCWSTR s2) { return s1.Compare(s2) == 0; }
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inline BOOL operator!=(const CHString& s1, const CHString& s2) { return s1.Compare(s2) != 0; }
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inline BOOL operator!=(const CHString& s1, LPCWSTR s2) { return s1.Compare(s2) != 0; }
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inline BOOL operator<(const CHString& s1, const CHString& s2) { return s1.Compare(s2) < 0; }
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inline BOOL operator<(const CHString& s1, LPCWSTR s2) { return s1.Compare(s2) < 0; }
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inline BOOL operator>(const CHString& s1, const CHString& s2) { return s1.Compare(s2) > 0; }
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inline BOOL operator>(const CHString& s1, LPCWSTR s2) { return s1.Compare(s2) > 0; }
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inline BOOL operator<=(const CHString& s1, const CHString& s2) { return s1.Compare(s2) <= 0; }
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inline BOOL operator<=(const CHString& s1, LPCWSTR s2) { return s1.Compare(s2) <= 0; }
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inline BOOL operator>=(const CHString& s1, const CHString& s2) { return s1.Compare(s2) >= 0; }
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inline BOOL operator>=(const CHString& s1, LPCWSTR s2) { return s1.Compare(s2) >= 0; }
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#endif
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