104 lines
2.4 KiB
C++
104 lines
2.4 KiB
C++
//+----------------------------------------------------------------------------
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//
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// File: cfilename.cpp
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//
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// Module: CMSETUP.LIB
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//
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// Synopsis: Implementation of the CFileNameParts Class
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//
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// Copyright (c) 1998-1999 Microsoft Corporation
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//
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// Author: quintinb Created Header 08/19/99
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//
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//+----------------------------------------------------------------------------
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#include "cfilename.h"
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CFileNameParts::CFileNameParts(LPCTSTR szFullPath)
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{
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if (NULL == szFullPath)
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{
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CMASSERTMSG(FALSE, TEXT("NULL Input to CFileNameParts"));
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return;
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}
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MYDBGASSERT(MAX_PATH >= lstrlen(szFullPath));
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ZeroMemory(m_szFullPath, sizeof(m_szFullPath));
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ZeroMemory(m_Drive, sizeof(m_Drive));
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ZeroMemory(m_Dir, sizeof(m_Dir));
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ZeroMemory(m_FileName, sizeof(m_FileName));
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ZeroMemory(m_Extension, sizeof(m_Extension));
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TCHAR* pszStart = m_szFullPath;
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const TCHAR* pszCurrentSource = szFullPath;
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TCHAR* pszLastSlash = NULL;
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TCHAR* pszColon = NULL;
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TCHAR* pszLastDot = NULL;
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TCHAR* pszCurrentDest = m_szFullPath;
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//
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// Copy szFullPath to m_szFullPath
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//
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lstrcpy(m_szFullPath, szFullPath);
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while ((TEXT('\0') != *pszCurrentSource) && (MAX_PATH >= (pszCurrentSource - szFullPath)))
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{
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switch(*pszCurrentSource)
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{
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case TEXT(':'):
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//
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// Found a colon, take the drive letter.
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//
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if ((NULL == pszColon) && (pszCurrentDest != m_szFullPath) &&
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(m_szFullPath == CharPrev(m_szFullPath, pszCurrentDest)))
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{
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pszColon = pszCurrentDest;
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lstrcpyn(m_Drive, pszStart, (size_t)((pszCurrentDest - pszStart) + 2));
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pszStart = CharNext(pszColon);
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}
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else
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{
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CMASSERTMSG(FALSE, TEXT("CFileNameParts -- Error, we only allow one colon in a path."));
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return;
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}
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break;
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case TEXT('\\'):
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case TEXT('/'):
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pszLastSlash = pszCurrentDest;
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break;
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case TEXT('.'):
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pszLastDot = pszCurrentDest;
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break;
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}
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pszCurrentSource = CharNext(pszCurrentSource);
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pszCurrentDest = CharNext(pszCurrentDest);
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}
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if (pszLastSlash)
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{
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lstrcpyn(m_Dir, pszStart, (size_t)((pszLastSlash - pszStart) + 2));
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pszStart = CharNext(pszLastSlash) ;
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}
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if (pszLastDot && (pszLastDot > pszLastSlash))
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{
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lstrcpyn(m_FileName, pszStart, (size_t)((pszLastDot - pszStart) + 1));
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lstrcpyn(m_Extension, pszLastDot, _MAX_EXT+1);
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}
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else
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{
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//
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// No extension
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//
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lstrcpyn(m_FileName, pszStart, _MAX_FNAME+1);
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}
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}
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