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// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl-3.0 *
// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved *
// **************************************************************************
#ifndef ZSTRING_H_INCLUDED_73425873425789
#define ZSTRING_H_INCLUDED_73425873425789
#include "string_base.h"
#ifdef ZEN_LINUX
#include <cstring> //strncmp
#endif
#ifdef ZEN_WIN //Windows encodes Unicode as UTF-16 wchar_t
typedef wchar_t Zchar;
#define Zstr(x) L ## x
const Zchar FILE_NAME_SEPARATOR = L'\\';
#elif defined ZEN_LINUX || defined ZEN_MAC //Linux uses UTF-8
typedef char Zchar;
#define Zstr(x) x
const Zchar FILE_NAME_SEPARATOR = '/';
#endif
//"The reason for all the fuss above" - Loki/SmartPtr
//a high-performance string for interfacing with native OS APIs in multithreaded contexts
typedef zen::Zbase<Zchar, zen::StorageRefCountThreadSafe, zen::AllocatorOptimalSpeed> Zstring;
//Compare filepaths: Windows does NOT distinguish between upper/lower-case, while Linux DOES
int cmpFilePath(const wchar_t* lhs, size_t lhsLen, const wchar_t* rhs, size_t rhsLen);
#if defined ZEN_LINUX || defined ZEN_MAC
int cmpFilePath(const char* lhs, size_t lhsLen, const char* rhs, size_t rhsLen);
#endif
struct LessFilePath //case-insensitive on Windows, case-sensitive on Linux
{
template <class S, class T>
bool operator()(const S& lhs, const T& rhs) const { using namespace zen; return cmpFilePath(strBegin(lhs), strLength(lhs), strBegin(rhs), strLength(rhs)) < 0; }
};
struct EqualFilePath //case-insensitive on Windows, case-sensitive on Linux
{
template <class S, class T>
bool operator()(const S& lhs, const T& rhs) const { using namespace zen; return cmpFilePath(strBegin(lhs), strLength(lhs), strBegin(rhs), strLength(rhs)) == 0; }
};
#if defined ZEN_WIN || defined ZEN_MAC
Zstring makeUpperCopy(const Zstring& str);
#endif
inline
Zstring appendSeparator(Zstring path) //support rvalue references!
{
return zen::endsWith(path, FILE_NAME_SEPARATOR) ? path : (path += FILE_NAME_SEPARATOR); //returning a by-value parameter implicitly converts to r-value!
}
inline
Zstring getFileExtension(const Zstring& filePath)
{
const Zstring shortName = afterLast(filePath, FILE_NAME_SEPARATOR, zen::IF_MISSING_RETURN_ALL);
return afterLast(shortName, Zchar('.'), zen::IF_MISSING_RETURN_NONE);
}
template <class S, class T> inline
bool pathStartsWith(const S& str, const T& prefix)
{
using namespace zen;
const size_t pfLen = strLength(prefix);
if (strLength(str) < pfLen)
return false;
return cmpFilePath(strBegin(str), pfLen, strBegin(prefix), pfLen) == 0;
}
template <class S, class T> inline
bool pathEndsWith(const S& str, const T& postfix)
{
using namespace zen;
const size_t strLen = strLength(str);
const size_t pfLen = strLength(postfix);
if (strLen < pfLen)
return false;
return cmpFilePath(strBegin(str) + strLen - pfLen, pfLen, strBegin(postfix), pfLen) == 0;
}
//################################# inline implementation ########################################
#if defined ZEN_LINUX || defined ZEN_MAC
inline
int cmpFilePath(const char* lhs, size_t lhsLen, const char* rhs, size_t rhsLen)
{
assert(std::find(lhs, lhs + lhsLen, 0) == lhs + lhsLen); //don't expect embedded nulls!
assert(std::find(rhs, rhs + rhsLen, 0) == rhs + rhsLen); //
#if defined ZEN_LINUX
const int rv = std::strncmp(lhs, rhs, std::min(lhsLen, rhsLen));
#elif defined ZEN_MAC
const int rv = ::strncasecmp(lhs, rhs, std::min(lhsLen, rhsLen)); //locale-dependent!
#endif
if (rv != 0)
return rv;
return static_cast<int>(lhsLen) - static_cast<int>(rhsLen);
}
inline
int cmpFilePath(const wchar_t* lhs, size_t lhsLen, const wchar_t* rhs, size_t rhsLen)
{
assert(std::find(lhs, lhs + lhsLen, 0) == lhs + lhsLen); //don't expect embedded nulls!
assert(std::find(rhs, rhs + rhsLen, 0) == rhs + rhsLen); //
#if defined ZEN_LINUX
const int rv = std::wcsncmp(lhs, rhs, std::min(lhsLen, rhsLen));
#elif defined ZEN_MAC
const int rv = ::wcsncasecmp(lhs, rhs, std::min(lhsLen, rhsLen)); //locale-dependent!
#endif
if (rv != 0)
return rv;
return static_cast<int>(lhsLen) - static_cast<int>(rhsLen);
}
#endif
//---------------------------------------------------------------------------
//ZEN macro consistency checks:
#ifdef ZEN_WIN
#if defined ZEN_LINUX || defined ZEN_MAC
#error more than one target platform defined
#endif
#ifdef ZEN_WIN_VISTA_AND_LATER
#ifdef ZEN_WIN_PRE_VISTA
#error choose only one of the two variants
#endif
#elif defined ZEN_WIN_PRE_VISTA
#ifdef ZEN_WIN_VISTA_AND_LATER
#error choose only one of the two variants
#endif
#else
#error choose one of the two variants
#endif
#elif defined ZEN_LINUX
#if defined ZEN_WIN || defined ZEN_MAC
#error more than one target platform defined
#endif
#elif defined ZEN_MAC
#if defined ZEN_WIN || defined ZEN_LINUX
#error more than one target platform defined
#endif
#else
#error no target platform defined
#endif
#endif //ZSTRING_H_INCLUDED_73425873425789
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