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Yajbir Singh f1b860b25c
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updated
2025-12-11 19:03:17 +05:30

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6.9 KiB
C++

/*
* (c) Copyright Ascensio System SIA 2010-2023
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
* street, Riga, Latvia, EU, LV-1050.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
#include "Path.h"
#include "File.h"
#include <stack>
#if defined(_WIN32) || defined (_WIN64)
#include <tchar.h>
#elif __linux__ || MAC
#include <libgen.h>
#endif
namespace NSSystemPath
{
std::wstring GetDirectoryName(const std::wstring& strFileName)
{
std::wstring sRes;
//_wsplitpath return directory path, including trailing slash.
//dirname() returns the string up to, but not including, the final '/',
#if defined(_WIN32) || defined (_WIN64)
wchar_t tDrive[256];
wchar_t tFolder[256];
_wsplitpath( strFileName.c_str(), tDrive, tFolder, NULL, NULL );
sRes.append(tDrive);
sRes.append(tFolder);
if(sRes.length() > 0)
sRes.erase(sRes.length()-1);
#elif __linux__ || MAC
BYTE* pUtf8 = NULL;
LONG lLen = 0;
NSFile::CUtf8Converter::GetUtf8StringFromUnicode(strFileName.c_str(), strFileName.length(), pUtf8, lLen, false);
char* pDirName = dirname((char*)pUtf8);
sRes = NSFile::CUtf8Converter::GetUnicodeStringFromUTF8((BYTE*)pDirName, strlen(pDirName));
delete [] pUtf8;
#endif
return sRes;
}
std::wstring GetFileName(const std::wstring& strFileName)
{
std::wstring sRes;
#if defined(_WIN32) || defined (_WIN64)
wchar_t tFilename[256];
wchar_t tExt[256];
_wsplitpath( strFileName.c_str(), NULL, NULL, tFilename, tExt );
sRes.append(tFilename);
sRes.append(tExt);
return sRes;
#elif __linux__ || MAC
BYTE* pUtf8 = NULL;
LONG lLen = 0;
NSFile::CUtf8Converter::GetUtf8StringFromUnicode(strFileName.c_str(), strFileName.length(), pUtf8, lLen, false);
char* pBaseName = basename((char*)pUtf8);
sRes = NSFile::CUtf8Converter::GetUnicodeStringFromUTF8((BYTE*)pBaseName, strlen(pBaseName));
delete [] pUtf8;
#endif
return sRes;
}
std::wstring Combine(const std::wstring& strLeft, const std::wstring& strRight)
{
std::wstring sRes;
bool bLeftSlash = false;
bool bRightSlash = false;
if(strLeft.length() > 0)
{
wchar_t cLeft = strLeft[strLeft.length() - 1];
bLeftSlash = ('/' == cLeft) || ('\\' == cLeft);
}
if(strRight.length() > 0)
{
wchar_t cRight = strRight[0];
bRightSlash = ('/' == cRight) || ('\\' == cRight);
}
if(bLeftSlash && bRightSlash)
{
sRes = strLeft + strRight.substr(1);
}
else if(!bLeftSlash && !bRightSlash)
sRes = strLeft + L"/" + strRight;
else
sRes = strLeft + strRight;
return sRes;
}
template<class CHAR, class STRING = std::basic_string<CHAR, std::char_traits<CHAR>, std::allocator<CHAR>>>
STRING NormalizePathTemplate(const STRING& strFileName, const bool& canHead = false)
{
const CHAR* pData = strFileName.c_str();
int nLen = (int) strFileName.length();
CHAR* pDataNorm = new CHAR[nLen + 1];
int* pSlashPoints = new int[nLen + 1];
int nStart = 0;
int nCurrent = 0;
int nCurrentSlash = -1;
int nCurrentW = 0;
bool bIsUp = false;
if (canHead)
{
nCurrentSlash = 0;
pSlashPoints[0] = 0;
}
if (pData[nCurrent] == '/' || pData[nCurrent] == '\\')
{
#if !defined(_WIN32) && !defined (_WIN64)
pDataNorm[nCurrentW++] = pData[nCurrent];
#endif
++nCurrentSlash;
pSlashPoints[nCurrentSlash] = nCurrentW;
}
while (nCurrent < nLen)
{
if (pData[nCurrent] == '/' || pData[nCurrent] == '\\')
{
if (nStart < nCurrent)
{
bIsUp = false;
if ((nCurrent - nStart) == 2)
{
if (pData[nStart] == (CHAR)'.' && pData[nStart + 1] == (CHAR)'.')
{
if (nCurrentSlash > 0)
{
--nCurrentSlash;
nCurrentW = pSlashPoints[nCurrentSlash];
bIsUp = true;
}
}
}
if (!bIsUp)
{
pDataNorm[nCurrentW++] = (CHAR)'/';
++nCurrentSlash;
pSlashPoints[nCurrentSlash] = nCurrentW;
}
}
nStart = nCurrent + 1;
++nCurrent;
continue;
}
pDataNorm[nCurrentW++] = pData[nCurrent];
++nCurrent;
}
pDataNorm[nCurrentW] = (CHAR)'\0';
STRING result = STRING(pDataNorm, nCurrentW);
delete[] pDataNorm;
delete[] pSlashPoints;
return result;
}
std::string NormalizePath(const std::string& strFileName, const bool& canHead)
{
return NormalizePathTemplate<char>(strFileName, canHead);
}
std::wstring NormalizePath(const std::wstring& strFileName, const bool& canHead)
{
return NormalizePathTemplate<wchar_t>(strFileName, canHead);
}
std::wstring ShortenPath(const std::wstring &strPath, const bool& bRemoveExternalPath)
{
std::stack<std::wstring> arStack;
std::wstring wsToken;
for (size_t i = 0; i < strPath.size(); ++i)
{
if (L'/' == strPath[i] || L'\\' == strPath[i])
{
if (L".." == wsToken)
{
if (!arStack.empty() && L".." != arStack.top())
arStack.pop();
else
arStack.push(wsToken);
}
else if (L"." != wsToken && !wsToken.empty())
arStack.push(wsToken);
wsToken.clear();
}
else
wsToken += strPath[i];
}
if (L".." == wsToken)
{
if (!arStack.empty() && L".." == arStack.top())
arStack.pop();
else
arStack.push(wsToken);
}
else if (L"." != wsToken && !wsToken.empty())
arStack.push(wsToken);
wsToken.clear();
if (arStack.empty())
return std::wstring();
std::wstring wsNewPath;
while (!arStack.empty())
{
if (bRemoveExternalPath && L".." == arStack.top())
break;
wsNewPath = arStack.top() + L'/' + wsNewPath;
arStack.pop();
}
wsNewPath.pop_back();
#if !defined(_WIN32) && !defined(_WIN64)
if (L'/' == strPath[0] || L'\\' == strPath[0])
return L'/' + wsNewPath;
#endif
return wsNewPath;
}
}