95 lines
2 KiB
C++
95 lines
2 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1996 - 1997.
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//
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// File: dbcs.hxx
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//
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// Contents: Macros for handling DBCS strings
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//
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// History: 10-24-96 DavidMun Created
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//
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//----------------------------------------------------------------------------
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#ifdef UNICODE
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#define PrevChar PrevCharW
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#define NextChar NextCharW
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#define IsLead IsLeadW
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#else // !UNICODE
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#define PrevChar PrevCharA
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#define NextChar NextCharA
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#define IsLead IsLeadA
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#endif // UNICODE
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//+---------------------------------------------------------------------------
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//
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// Function: PrevCharW
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//
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// Synopsis: Return [wszCur] - 1 or [wszStart] if [wszCur] is at or before
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// the start of the string.
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//
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// History: 10-24-96 DavidMun Created
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//
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//----------------------------------------------------------------------------
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inline LPWSTR
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PrevCharW(LPCWSTR wszStart, LPCWSTR wszCur)
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{
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if (wszCur > wszStart)
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{
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return (LPWSTR) (wszCur - 1);
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}
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return (LPWSTR) wszCur;
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}
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//+---------------------------------------------------------------------------
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//
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// Function: NextCharW
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//
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// Synopsis: Return [wszCur] + 1, or [wszCur] if it points to the end of
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// the string.
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//
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// History: 10-24-96 DavidMun Created
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//
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//----------------------------------------------------------------------------
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inline LPWSTR
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NextCharW(LPCWSTR wszCur)
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{
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if (*wszCur)
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{
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return (LPWSTR) (wszCur + 1);
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}
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return (LPWSTR) wszCur;
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}
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#define IsLeadW(wch) FALSE
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#define PrevCharA CharPrev
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#define NextCharA CharNext
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#define IsLeadA IsDBCSLeadByte
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HRESULT
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UnicodeToAnsi(
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LPSTR szTo,
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LPCWSTR pwszFrom,
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ULONG cbTo);
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HRESULT
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AnsiToUnicode(
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LPWSTR pwszTo,
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LPCSTR szFrom,
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LONG cchTo);
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