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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> //strcmp
#endif
#ifndef NDEBUG
namespace z_impl
{
void leakCheckerInsert(const void* ptr, size_t size);
void leakCheckerRemove(const void* ptr);
}
#endif //NDEBUG
class AllocatorFreeStoreChecked
{
public:
static void* allocate(size_t size) //throw std::bad_alloc
{
void* ptr = zen::AllocatorOptimalSpeed::allocate(size);
#ifndef NDEBUG
z_impl::leakCheckerInsert(ptr, size); //test Zbase for memory leaks
#endif
return ptr;
}
static void deallocate(void* ptr)
{
#ifndef NDEBUG
z_impl::leakCheckerRemove(ptr); //check for memory leaks
#endif
zen::AllocatorOptimalSpeed::deallocate(ptr);
}
static size_t calcCapacity(size_t length) { return zen::AllocatorOptimalSpeed::calcCapacity(length); }
};
//############################## helper functions #############################################
#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 and multithreaded contexts
typedef zen::Zbase<Zchar, zen::StorageRefCountThreadSafe, AllocatorFreeStoreChecked> Zstring;
//Compare filepaths: Windows does NOT distinguish between upper/lower-case, while Linux DOES
int cmpFileName(const Zstring& lhs, const Zstring& rhs);
struct LessFilePath //case-insensitive on Windows, case-sensitive on Linux
{
bool operator()(const Zstring& lhs, const Zstring& rhs) const { return cmpFileName(lhs, rhs) < 0; }
};
struct EqualFilePath //case-insensitive on Windows, case-sensitive on Linux
{
bool operator()(const Zstring& lhs, const Zstring& rhs) const { return cmpFileName(lhs, 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); //returns the whole string if term not found
return contains(shortName, Zchar('.')) ?
afterLast(filePath, Zchar('.')) :
Zstring();
}
inline
bool pathStartsWith(const Zstring& str, const Zstring& prefix)
{
return str.size() >= prefix.size() &&
EqualFilePath()(Zstring(str.begin(), str.begin() + prefix.size()), prefix);
}
inline
bool pathEndsWith(const Zstring& str, const Zstring& postfix)
{
return str.size() >= postfix.size() &&
EqualFilePath()(Zstring(str.end() - postfix.size(), str.end()), postfix);
}
//################################# inline implementation ########################################
#ifdef ZEN_LINUX
inline
int cmpFileName(const Zstring& lhs, const Zstring& rhs)
{
return std::strcmp(lhs.c_str(), rhs.c_str()); //POSIX filepaths don't have embedded 0
}
#endif
#endif //ZSTRING_H_INCLUDED_73425873425789
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