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project64/Source/Common/path.cpp

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// Path.cpp: implementation of the CPath class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#ifdef _WIN32
#pragma warning(push)
#pragma warning(disable : 4091) // warning C4091: 'typedef ': ignored on left of 'tagGPFIDL_FLAGS' when no variable is declared
#pragma warning(disable : 4996) // warning C4091: 'typedef ': ignored on left of 'tagGPFIDL_FLAGS' when no variable is declared
#include <Shlobj.h>
#include <dos.h>
#include <CommDlg.h>
#pragma warning(pop)
#else
#include <sys/stat.h>
#include <dirent.h>
#include <unistd.h>
#include <errno.h>
#endif
#include "Platform.h"
/*
* g_ModuleLogLevel may be NULL while AppInit() is still in session in path.cpp.
* The added check to compare to NULL here is at least a temporary workaround.
*/
#undef WriteTrace
#ifdef _WIN32
#define WriteTrace(m, s, format, ...) if (g_ModuleLogLevel != NULL && g_ModuleLogLevel[(m)] >= (s)) { WriteTraceFull((m), (s), __FILE__, __LINE__, __FUNCTION__, (format), ## __VA_ARGS__); }
#else
#define WriteTrace(m, s, format, ...) if (g_ModuleLogLevel != NULL && g_ModuleLogLevel[(m)] >= (s)) { WriteTraceFull((m), (s), __FILE__, __LINE__, __PRETTY_FUNCTION__, (format), ## __VA_ARGS__); }
#endif
//////////////////////////////////////////////////////////////////////
// Constants
//////////////////////////////////////////////////////////////////////
#ifdef _WIN32
const char DRIVE_DELIMITER = ':';
const char * const DIR_DOUBLEDELIM = "\\\\";
const char DIRECTORY_DELIMITER = '\\';
const char DIRECTORY_DELIMITER2 = '/';
#else
const char * const DIR_DOUBLEDELIM = "//";
const char DIRECTORY_DELIMITER = '/';
const char DIRECTORY_DELIMITER2 = '\\';
#endif
const char EXTENSION_DELIMITER = '.';
#ifdef _WIN32
void * CPath::m_hInst = NULL;
#endif
//////////////////////////////////////////////////////////////////////
// Helpers
//////////////////////////////////////////////////////////////////////
#ifdef _WIN32
void CPath::SethInst(void * hInst)
{
m_hInst = hInst;
}
void * CPath::GethInst()
{
return m_hInst;
}
#endif
//////////////////////////////////////////////////////////////////////
// Initialisation
//////////////////////////////////////////////////////////////////////
//-------------------------------------------------------------
// Task : Helper function for the various CPath constructors.
// Initializes the data members and establishes various
// class invariants
//-------------------------------------------------------------
inline void CPath::Init()
{
m_dwFindFileAttributes = 0;
#ifdef _WIN32
m_hFindFile = NULL;
#else
m_OpenedDir = NULL;
m_FindWildcard = "";
#endif
}
//-------------------------------------------------------------
// Task : Helper function for the various CPath destructors.
// Cleans up varios internals
//-------------------------------------------------------------
inline void CPath::Exit()
{
#ifdef _WIN32
if (m_hFindFile != NULL)
{
FindClose(m_hFindFile);
m_hFindFile = NULL;
}
#else
if (m_OpenedDir != NULL)
{
closedir((DIR*)m_OpenedDir);
m_OpenedDir = NULL;
}
#endif
}
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
//-------------------------------------------------------------
// Task : Constructs a path
//-------------------------------------------------------------
CPath::CPath()
{
Init();
Empty();
}
//-------------------------------------------------------------
// Task : Constructs a path as copy of another
//-------------------------------------------------------------
CPath::CPath(const CPath& rPath)
{
Init();
m_strPath = rPath.m_strPath;
}
//-------------------------------------------------------------
// Task : Constructs a path and points it 2 lpszPath
//-------------------------------------------------------------
CPath::CPath(const char * lpszPath)
{
Init();
m_strPath = lpszPath ? lpszPath : "";
cleanPathString(m_strPath);
}
CPath::CPath(const char * lpszPath, const char * NameExten)
{
WriteTrace(TracePath, TraceDebug, "Start (lpszPath: \"%s\" NameExten: \"%s\")", lpszPath ? lpszPath : "(null)", NameExten ? NameExten : "(null)");
Init();
#ifdef _WIN32
SetDriveDirectory(lpszPath);
#else
SetDirectory(lpszPath);
#endif
SetNameExtension(NameExten);
WriteTrace(TracePath, TraceDebug, "Done (m_strPath: \"%s\")", m_strPath.c_str());
}
//-------------------------------------------------------------
// Task : Constructs a path and points it 2 strPath
//-------------------------------------------------------------
CPath::CPath(const std::string& strPath)
{
Init();
m_strPath = strPath;
cleanPathString(m_strPath);
}
//-------------------------------------------------------------
// Task : Constructs a path and points it 2 strPath
//-------------------------------------------------------------
CPath::CPath(const std::string& strPath, const char * NameExten)
{
Init();
#ifdef _WIN32
SetDriveDirectory(strPath.c_str());
#else
SetDirectory(strPath.c_str(),true);
#endif
SetNameExtension(NameExten);
}
//-------------------------------------------------------------
// Task : Constructs a path and points it 2 strPath
//-------------------------------------------------------------
CPath::CPath(const std::string& strPath, const std::string& NameExten)
{
Init();
#ifdef _WIN32
SetDriveDirectory(strPath.c_str());
#else
SetDirectory(strPath.c_str(),true);
#endif
SetNameExtension(NameExten.c_str());
}
//-------------------------------------------------------------
// Task : Cleanup and destruct a path object
//-------------------------------------------------------------
CPath::~CPath()
{
Exit();
}
//-------------------------------------------------------------
// Post : Return TRUE if paths are equal
// Task : Check if the two path are the same
//-------------------------------------------------------------
bool CPath::operator ==(const CPath& rPath) const
{
// Get fully qualified versions of the paths
std::string FullyQualified1;
std::string FullyQualified2;
GetFullyQualified(FullyQualified1);
rPath.GetFullyQualified(FullyQualified2);
// Compare them
return _stricmp(FullyQualified1.c_str(), FullyQualified2.c_str()) == 0;
}
//-------------------------------------------------------------
// Post : Return TRUE if paths are different
// Task : Check if the two path are different
//-------------------------------------------------------------
bool CPath::operator !=(const CPath& rPath) const
{
return !(*this == rPath);
}
//-------------------------------------------------------------
// Task : Assign a path 2 another
//-------------------------------------------------------------
CPath& CPath::operator =(const CPath& rPath)
{
if (this != &rPath)
{
m_strPath = rPath.m_strPath;
}
return *this;
}
//-------------------------------------------------------------
// Post : Return the path, so that assignements can be chained
// Task : Assign a string 2 a path
//-------------------------------------------------------------
CPath& CPath::operator =(const char * lpszPath)
{
m_strPath = lpszPath ? lpszPath : "";
return *this;
}
//-------------------------------------------------------------
// Post : Return the path, so that assignements can be chained
// Task : Assign a string 2 a path
//-------------------------------------------------------------
CPath& CPath::operator =(const std::string& strPath)
{
m_strPath = strPath;
return *this;
}
//-------------------------------------------------------------
// Post : Converts path 2 string
// Task : Convert path 2 string
// Warning: because this pointer 2 string point in the data
// of this class, it is possible 2 cast the result of this
// function in any non-constant pointer and alter the data.
// Very dangerous
//-------------------------------------------------------------
CPath::operator const char *() const
{
return (const char *)m_strPath.c_str();
}
CPath::CPath(DIR_CURRENT_DIRECTORY /*sdt*/, const char * NameExten)
{
// Application's current directory
Init();
CurrentDirectory();
if (NameExten) { SetNameExtension(NameExten); }
}
#ifdef _WIN32
CPath::CPath(DIR_MODULE_DIRECTORY /*sdt*/, const char * NameExten)
{
// The directory where the executable of this app is
Init();
ModuleDirectory();
if (NameExten) { SetNameExtension(NameExten); }
}
CPath::CPath(DIR_MODULE_FILE /*sdt*/)
{
// The directory where the executable of this app is
Init();
Module();
}
#endif
//-------------------------------------------------------------
// Post : Returns the drive component without a colon, e.g. "c"
// Returns the directory component with a leading backslash,
// but no trailing backslash, e.g. "\dir\subdir"
// Returns name compleletely without delimiters, e.g "letter"
// Returns extension completely without delimiters, e.g. "doc"
// Globals :
// I/O :
// Task : Return the individual components of this path.
// For any given argument, you can pass NULL if you are not
// interested in that component.
// Do not rely on pNames being <= 8 characters, extensions
// being <= 3 characters, or drives being 1 character
//-------------------------------------------------------------
#ifdef _WIN32
void CPath::GetComponents(std::string* pDrive, std::string* pDirectory, std::string* pName, std::string* pExtension) const
{
WriteTrace(TracePath, TraceDebug, "Start (m_strPath: \"%s\")", m_strPath.c_str());
char buff_drive[_MAX_DRIVE + 1] = { 0 };
char buff_dir[_MAX_DIR + 1] = { 0 };
char buff_name[_MAX_FNAME + 1] = { 0 };
char buff_ext[_MAX_EXT + 1] = { 0 };
const char * BasePath = m_strPath.c_str();
const char * DriveDir = strrchr(BasePath, DRIVE_DELIMITER);
if (DriveDir != NULL)
{
size_t len = sizeof(buff_dir) < (DriveDir - BasePath) ? sizeof(buff_drive) : DriveDir - BasePath;
strncpy(buff_drive, BasePath, len);
BasePath += len + 1;
}
const char * last = strrchr(BasePath, DIRECTORY_DELIMITER);
if (last != NULL)
{
size_t len = sizeof(buff_dir) < (last - BasePath) ? sizeof(buff_dir) : last - BasePath;
if (len > 0)
{
strncpy(buff_dir, BasePath, len);
}
else
{
buff_dir[0] = DIRECTORY_DELIMITER;
buff_dir[1] = '\0';
}
strncpy(buff_name, last + 1, sizeof(buff_name));
}
else
{
strncpy(buff_dir, BasePath, sizeof(buff_dir));
}
char * ext = strrchr(buff_name, '.');
if (ext != NULL)
{
strncpy(buff_ext, ext + 1, sizeof(buff_ext));
*ext = '\0';
}
if (pDrive)
{
*pDrive = buff_drive;
}
if (pDirectory)
{
*pDirectory = buff_dir;
}
if (pName)
{
*pName = buff_name;
}
if (pExtension)
{
*pExtension = buff_ext;
}
WriteTrace(TracePath, TraceDebug, "Done (dir: \"%s\" name: \"%s\" ext: \"%s\")", buff_dir, buff_name, buff_ext);
}
#else
void CPath::GetComponents(std::string* pDirectory, std::string* pName, std::string* pExtension) const
{
WriteTrace(TracePath, TraceDebug, "Start (m_strPath: \"%s\")",m_strPath.c_str());
char buff_dir[260];
char buff_name[260];
char buff_ext[260];
memset(buff_dir, 0, sizeof(buff_dir));
memset(buff_name, 0, sizeof(buff_name));
memset(buff_ext, 0, sizeof(buff_ext));
const char * BasePath = m_strPath.c_str();
const char * last = strrchr(BasePath,DIRECTORY_DELIMITER);
if (last != NULL)
{
int len = sizeof(buff_dir) < (last - BasePath) ? sizeof(buff_dir) : last - BasePath;
if (len > 0)
{
strncpy(buff_dir,BasePath,len);
}
else
{
buff_dir[0] = DIRECTORY_DELIMITER;
buff_dir[1] = '\0';
}
strncpy(buff_name,last + 1,sizeof(buff_name));
}
else
{
strncpy(buff_dir,BasePath,sizeof(buff_dir));
}
char * ext = strrchr(buff_name,'.');
if (ext != NULL)
{
strncpy(buff_ext,ext + 1,sizeof(buff_ext));
*ext = '\0';
}
if (pDirectory)
{
*pDirectory = buff_dir;
}
if (pName)
{
*pName = buff_name;
}
if (pExtension)
{
*pExtension = buff_ext;
}
WriteTrace(TracePath, TraceDebug, "Done (dir: \"%s\" name: \"%s\" ext: \"%s\")",buff_dir,buff_name,buff_ext);
}
#endif
//-------------------------------------------------------------
// Task : Get drive and directory from path
//-------------------------------------------------------------
#ifdef _WIN32
void CPath::GetDriveDirectory(std::string& rDriveDirectory) const
{
std::string Drive;
std::string Directory;
GetComponents(&Drive, &Directory);
rDriveDirectory = Drive;
if (!Drive.empty())
{
rDriveDirectory += DRIVE_DELIMITER;
}
rDriveDirectory += Directory;
}
std::string CPath::GetDriveDirectory(void) const
{
std::string rDriveDirectory;
GetDriveDirectory(rDriveDirectory);
return rDriveDirectory;
}
#endif
//-------------------------------------------------------------
// Task : Get directory from path
//-------------------------------------------------------------
void CPath::GetDirectory(std::string& rDirectory) const
{
#ifdef _WIN32
GetComponents(NULL, &rDirectory);
#else
GetComponents(&rDirectory);
#endif
}
std::string CPath::GetDirectory(void) const
{
std::string rDirectory;
GetDirectory(rDirectory);
return rDirectory;
}
//-------------------------------------------------------------
// Task : Get filename and extension from path
//-------------------------------------------------------------
void CPath::GetNameExtension(std::string& rNameExtension) const
{
std::string Name;
std::string Extension;
#ifdef _WIN32
GetComponents(NULL, NULL, &Name, &Extension);
#else
GetComponents(NULL, &Name, &Extension);
#endif
rNameExtension = Name;
if (!Extension.empty())
{
rNameExtension += EXTENSION_DELIMITER;
rNameExtension += Extension;
}
}
std::string CPath::GetNameExtension(void) const
{
std::string rNameExtension;
GetNameExtension(rNameExtension);
return rNameExtension;
}
//-------------------------------------------------------------
// Task : Get filename from path
//-------------------------------------------------------------
void CPath::GetName(std::string& rName) const
{
#ifdef _WIN32
GetComponents(NULL, NULL, &rName);
#else
GetComponents(NULL, &rName);
#endif
}
std::string CPath::GetName(void) const
{
std::string rName;
GetName(rName);
return rName;
}
//-------------------------------------------------------------
// Task : Get file extension from path
//-------------------------------------------------------------
void CPath::GetExtension(std::string& rExtension) const
{
#ifdef _WIN32
GetComponents(NULL, NULL, NULL, &rExtension);
#else
GetComponents(NULL, NULL, &rExtension);
#endif
}
std::string CPath::GetExtension(void) const
{
std::string rExtension;
GetExtension(rExtension);
return rExtension;
}
//-------------------------------------------------------------
// Task : Get current directory
//-------------------------------------------------------------
void CPath::GetLastDirectory(std::string& rDirectory) const
{
std::string Directory;
rDirectory = "";
GetDirectory(Directory);
StripTrailingBackslash(Directory);
if (Directory.empty())
{
return;
}
std::string::size_type nDelimiter = Directory.rfind(DIRECTORY_DELIMITER);
rDirectory = Directory.substr(nDelimiter);
StripLeadingBackslash(rDirectory);
}
std::string CPath::GetLastDirectory(void) const
{
std::string rDirecotry;
GetLastDirectory(rDirecotry);
return rDirecotry;
}
//-------------------------------------------------------------
// Task : Get fully qualified path
//-------------------------------------------------------------
void CPath::GetFullyQualified(std::string& rFullyQualified) const
{
#ifdef _WIN32
char buff_fullname[MAX_PATH];
memset(buff_fullname, 0, sizeof(buff_fullname));
_fullpath(buff_fullname, m_strPath.c_str(), MAX_PATH - 1);
rFullyQualified = buff_fullname;
#endif
}
//-------------------------------------------------------------
// Post : Return TRUE if path does not start from filesystem root
// Task : Check if path is a relative one (e.g. doesn't start with C:\...)
//-------------------------------------------------------------
bool CPath::IsRelative() const
{
#ifdef _WIN32
if (m_strPath.length() > 1 && m_strPath[1] == DRIVE_DELIMITER)
{
return false;
}
if (m_strPath.length() > 2 && m_strPath[0] == DIRECTORY_DELIMITER && m_strPath[1] == DIRECTORY_DELIMITER)
{
return false;
}
#else
if (m_strPath.length() > 1 && m_strPath[0] == DIRECTORY_DELIMITER)
{
return false;
}
#endif
return true;
}
//-------------------------------------------------------------
// Task : Set path components
//-------------------------------------------------------------
#ifdef _WIN32
void CPath::SetComponents(const char * lpszDrive, const char * lpszDirectory, const char * lpszName, const char * lpszExtension)
{
char buff_fullname[MAX_PATH];
memset(buff_fullname, 0, sizeof(buff_fullname));
if (lpszDirectory == NULL || strlen(lpszDirectory) == 0)
{
static char empty_dir[] = { DIRECTORY_DELIMITER, '\0' };
lpszDirectory = empty_dir;
}
_makepath(buff_fullname, lpszDrive, lpszDirectory, lpszName, lpszExtension);
m_strPath.erase();
m_strPath = buff_fullname;
}
#else
void CPath::SetComponents(const char * lpszDirectory, const char * lpszName, const char * lpszExtension)
{
char buff_fullname[260];
memset(buff_fullname, 0, sizeof(buff_fullname));
if (lpszDirectory != NULL && lpszDirectory[0] != '\0')
{
if (lpszDirectory[0] != DIRECTORY_DELIMITER) { buff_fullname[0] = DIRECTORY_DELIMITER; }
strncat(buff_fullname,lpszDirectory,sizeof(buff_fullname) - 1);
std::string::size_type nLength = strlen(buff_fullname);
if (buff_fullname[nLength - 1] != DIRECTORY_DELIMITER && nLength < sizeof(buff_fullname))
{
buff_fullname[nLength] = DIRECTORY_DELIMITER;
}
}
if (lpszName != NULL)
{
strncat(buff_fullname,lpszName,sizeof(buff_fullname) - 1);
}
if (lpszExtension != NULL && lpszExtension[0] != '\0')
{
if (lpszExtension[0] != '.')
{
strncat(buff_fullname,".",sizeof(buff_fullname)-1);
}
strncat(buff_fullname,lpszExtension,sizeof(buff_fullname)-1);
}
buff_fullname[sizeof(buff_fullname) - 1] = 0; //Make sure it is null terminated
m_strPath.erase();
m_strPath = buff_fullname;
}
#endif
//-------------------------------------------------------------
// Task : Set path's drive
//-------------------------------------------------------------
#ifdef _WIN32
void CPath::SetDrive(char chDrive)
{
stdstr_f Drive("%c", chDrive);
std::string Directory;
std::string Name;
std::string Extension;
GetComponents(NULL, &Directory, &Name, &Extension);
SetComponents(Drive.c_str(), Directory.c_str(), Name.c_str(), Extension.c_str());
}
#endif
//-------------------------------------------------------------
// Task : Set path's directory
//-------------------------------------------------------------
void CPath::SetDirectory(const char * lpszDirectory, bool bEnsureAbsolute /*= false*/)
{
WriteTrace(TracePath, TraceDebug, "start (lpszDirectory: \"%s\" bEnsureAbsolute: %s)", lpszDirectory ? lpszDirectory : "(null)", bEnsureAbsolute ? "true" : "false");
std::string Directory = lpszDirectory;
std::string Name;
std::string Extension;
if (bEnsureAbsolute)
{
EnsureLeadingBackslash(Directory);
}
if (Directory.length() > 0)
{
EnsureTrailingBackslash(Directory);
}
#ifdef _WIN32
std::string Drive;
GetComponents(&Drive, NULL, &Name, &Extension);
SetComponents(Drive.c_str(), Directory.c_str(), Name.c_str(), Extension.c_str());
#else
GetComponents(NULL, &Name, &Extension);
SetComponents(Directory.c_str(), Name.c_str(), Extension.c_str());
#endif
WriteTrace(TracePath, TraceDebug, "Done (m_strPath: \"%s\")", m_strPath.c_str());
}
#ifdef _WIN32
//-------------------------------------------------------------
// Task : Set path's drive and directory
//-------------------------------------------------------------
void CPath::SetDriveDirectory(const char * lpszDriveDirectory)
{
std::string DriveDirectory = lpszDriveDirectory;
std::string Name;
std::string Extension;
if (DriveDirectory.length() > 0)
{
EnsureTrailingBackslash(DriveDirectory);
cleanPathString(DriveDirectory);
}
GetComponents(NULL, NULL, &Name, &Extension);
SetComponents(NULL, DriveDirectory.c_str(), Name.c_str(), Extension.c_str());
}
#endif
//-------------------------------------------------------------
// Task : Set path's filename
//-------------------------------------------------------------
void CPath::SetName(const char * lpszName)
{
std::string Directory;
std::string Extension;
#ifdef _WIN32
std::string Drive;
GetComponents(&Drive, &Directory, NULL, &Extension);
SetComponents(Drive.c_str(), Directory.c_str(), lpszName, Extension.c_str());
#else
GetComponents(&Directory, NULL, &Extension);
SetComponents(Directory.c_str(), lpszName, Extension.c_str());
#endif
}
//-------------------------------------------------------------
// Task : Set path's filename
//-------------------------------------------------------------
void CPath::SetName(int iName)
{
std::string Directory;
std::string Extension;
char sName[33];
memset(sName, 0, sizeof(sName));
_snprintf(sName, sizeof(sName), "%d", iName);
#ifdef _WIN32
std::string Drive;
GetComponents(&Drive, &Directory, NULL, &Extension);
SetComponents(Drive.c_str(), Directory.c_str(), sName, Extension.c_str());
#else
GetComponents(&Directory, NULL, &Extension);
SetComponents(Directory.c_str(), sName, Extension.c_str());
#endif
}
//-------------------------------------------------------------
// Task : Set path's file extension
//-------------------------------------------------------------
void CPath::SetExtension(const char * lpszExtension)
{
std::string Directory;
std::string Name;
#ifdef _WIN32
std::string Drive;
GetComponents(&Drive, &Directory, &Name);
SetComponents(Drive.c_str(), Directory.c_str(), Name.c_str(), lpszExtension);
#else
GetComponents(&Directory, &Name);
SetComponents(Directory.c_str(), Name.c_str(), lpszExtension);
#endif
}
//-------------------------------------------------------------
// Task : Set path's file extension
//-------------------------------------------------------------
void CPath::SetExtension(int iExtension)
{
std::string Directory;
std::string Name;
char sExtension[20];
memset(sExtension, 0, sizeof(sExtension));
_snprintf(sExtension, sizeof(sExtension), "%d", iExtension);
#ifdef _WIN32
std::string Drive;
GetComponents(&Drive, &Directory, &Name);
SetComponents(Drive.c_str(), Directory.c_str(), Name.c_str(), sExtension);
#else
GetComponents(&Directory, &Name);
SetComponents(Directory.c_str(), Name.c_str(), sExtension);
#endif
}
//-------------------------------------------------------------
// Task : Set path's filename and extension
//-------------------------------------------------------------
void CPath::SetNameExtension(const char * lpszNameExtension)
{
std::string Directory;
#ifdef _WIN32
std::string Drive;
GetComponents(&Drive, &Directory);
SetComponents(Drive.c_str(), Directory.c_str(), lpszNameExtension, NULL);
#else
GetComponents(&Directory);
SetComponents(Directory.c_str(), lpszNameExtension, NULL);
#endif
}
//-------------------------------------------------------------
// Task : Append a subdirectory 2 path's directory
//-------------------------------------------------------------
void CPath::AppendDirectory(const char * lpszSubDirectory)
{
std::string Directory;
std::string SubDirectory = lpszSubDirectory;
std::string Name;
std::string Extension;
if (SubDirectory.empty())
{
return;
}
// Strip out any preceeding backslash
StripLeadingBackslash(SubDirectory);
EnsureTrailingBackslash(SubDirectory);
#ifdef _WIN32
std::string Drive;
GetComponents(&Drive, &Directory, &Name, &Extension);
#else
GetComponents(&Directory, &Name, &Extension);
#endif
EnsureTrailingBackslash(Directory);
Directory += SubDirectory;
#ifdef _WIN32
SetComponents(Drive.c_str(), Directory.c_str(), Name.c_str(), Extension.c_str());
#else
SetComponents(Directory.c_str(), Name.c_str(), Extension.c_str());
#endif
}
//-------------------------------------------------------------
// Pre : If pLastDirectory is given we will store the name of the
// deepest directory (the one we're just exiting) in it
// Task : Remove deepest subdirectory from path
//-------------------------------------------------------------
void CPath::UpDirectory(std::string *pLastDirectory /*= NULL*/)
{
std::string Directory;
GetDirectory(Directory);
StripTrailingBackslash(Directory);
if (Directory.empty())
return;
std::string::size_type nDelimiter = Directory.rfind(DIRECTORY_DELIMITER);
if (pLastDirectory != NULL)
{
*pLastDirectory = Directory.substr(nDelimiter);
StripLeadingBackslash(*pLastDirectory);
}
if (nDelimiter != std::string::npos)
{
Directory = Directory.substr(0, nDelimiter);
}
SetDirectory(Directory.c_str());
}
//-------------------------------------------------------------
// Task : Set path 2 current directory
//-------------------------------------------------------------
void CPath::CurrentDirectory()
{
char buff_path[260];
memset(buff_path, 0, sizeof(buff_path));
Empty();
#ifdef _WIN32
::GetCurrentDirectoryA(sizeof(buff_path), buff_path);
SetDriveDirectory(buff_path);
#else
getcwd(buff_path, sizeof(buff_path));
SetDirectory(buff_path);
#endif
}
//-------------------------------------------------------------
// Task : Set path 2 the name of specified module
//-------------------------------------------------------------
#ifdef _WIN32
void CPath::Module(void * hInstance)
{
char buff_path[MAX_PATH];
memset(buff_path, 0, sizeof(buff_path));
GetModuleFileNameA((HINSTANCE)hInstance, buff_path, MAX_PATH);
m_strPath = buff_path;
}
//-------------------------------------------------------------
// Task : Set path 2 the name of current module
//-------------------------------------------------------------
void CPath::Module()
{
Module(m_hInst);
}
//-------------------------------------------------------------
// Task : Set path 2 the directory of specified module
//-------------------------------------------------------------
void CPath::ModuleDirectory(void * hInstance)
{
Module(hInstance);
SetNameExtension("");
}
//-------------------------------------------------------------
// Task : Set path 2 the directory of current module
//-------------------------------------------------------------
void CPath::ModuleDirectory()
{
Module();
SetNameExtension("");
}
#endif
//---------------------------------------------------------------------------
// Post : Return TRUE if a directory
// Task : Check if this path represents a directory
//---------------------------------------------------------------------------
bool CPath::IsDirectory() const
{
// Check if this path has a filename
std::string file_name;
GetNameExtension(file_name);
return file_name.empty();
}
//-------------------------------------------------------------
// Post : Return TRUE if directory exists
// Task : To determine if the directory exists, we need to
// create a test path with a wildcard (*.*) extension
// and see if FindFirstFile returns anything. We don't
// use CPath::FindFirst() because that routine parses out
// '.' and '..', which fails for empty directories
//-------------------------------------------------------------
bool CPath::DirectoryExists() const
{
WriteTrace(TracePath, TraceDebug, "m_strPath = %s",m_strPath.c_str());
#ifdef _WIN32
// Create test path
CPath TestPath(m_strPath.c_str());
std::string DirName;
TestPath.UpDirectory(&DirName);
TestPath.SetNameExtension(DirName.c_str());
WIN32_FIND_DATAA FindData;
HANDLE hFindFile = FindFirstFileA((const char *)TestPath, &FindData); // Find anything
bool res = (hFindFile != INVALID_HANDLE_VALUE);
if (hFindFile != NULL) // Make sure we close the search
{
FindClose(hFindFile);
}
#else
std::string PathText;
GetDirectory(PathText);
StripTrailingBackslash(PathText);
WriteTrace(TracePath, TraceDebug, "Checking if directory \"%s\" exists",PathText.c_str());
struct stat fileinfo;
bool res = stat(PathText.c_str(), &fileinfo) == 0 && S_ISDIR(fileinfo.st_mode);
#endif
WriteTrace(TracePath, TraceDebug, "Exist = %s",res ? "True" : "False");
return res;
}
//-------------------------------------------------------------
// Post : Return TRUE if these is such a file
// Task : Check if file exists
//-------------------------------------------------------------
bool CPath::Exists() const
{
#ifdef _WIN32
WIN32_FIND_DATAA FindData;
HANDLE hFindFile = FindFirstFileA(m_strPath.c_str(), &FindData);
bool bSuccess = (hFindFile != INVALID_HANDLE_VALUE);
if (hFindFile != NULL) // Make sure we close the search
{
FindClose(hFindFile);
}
return bSuccess;
#else
struct stat statbuf;
return stat(m_strPath.c_str(), &statbuf) == 0;
#endif
}
#ifdef _WIN32
bool CPath::SelectFile(void * hwndOwner, const char * InitialDir, const char * FileFilter, bool FileMustExist)
{
CPath CurrentDir(CURRENT_DIRECTORY);
OPENFILENAMEA openfilename;
char FileName[MAX_PATH];
memset(&FileName, 0, sizeof(FileName));
memset(&openfilename, 0, sizeof(openfilename));
openfilename.lStructSize = sizeof(openfilename);
openfilename.hwndOwner = (HWND)hwndOwner;
openfilename.lpstrFilter = FileFilter;
openfilename.lpstrFile = FileName;
openfilename.lpstrInitialDir = InitialDir;
openfilename.nMaxFile = MAX_PATH;
openfilename.Flags = OFN_HIDEREADONLY | (FileMustExist ? OFN_FILEMUSTEXIST : 0);
bool res = GetOpenFileNameA(&openfilename) != 0;
if (CPath(CURRENT_DIRECTORY) != CurrentDir)
{
CurrentDir.ChangeDirectory();
}
if (!res)
{
return false;
}
m_strPath = FileName;
cleanPathString(m_strPath);
return true;
}
#endif
//-------------------------------------------------------------
// Post : Return TRUE on success
// Task : Delete file
//-------------------------------------------------------------
bool CPath::Delete(bool bEvenIfReadOnly) const
{
#ifdef _WIN32
uint32_t dwAttr = ::GetFileAttributesA(m_strPath.c_str());
if (dwAttr == (uint32_t)-1)
{
// File does not exist.
return false;
}
if (((dwAttr & FILE_ATTRIBUTE_READONLY) == FILE_ATTRIBUTE_READONLY) && !bEvenIfReadOnly)
{
// File is read-only, and we're not allowed 2 delete it
return false;
}
SetFileAttributesA(m_strPath.c_str(), FILE_ATTRIBUTE_NORMAL);
return DeleteFileA(m_strPath.c_str()) != 0;
#else
return unlink(m_strPath.c_str()) == 0;
#endif
}
//-------------------------------------------------------------
// Post : Return TRUE on success, false if there is such a target file
// and we weren't granted permission 2 overwrite file or some error
// Task : Copy file
// Since ::CopyFile will not overwrite read only files
// we will make sure the target file is writable first
//-------------------------------------------------------------
bool CPath::CopyTo(const char * lpcszTargetFile, bool bOverwrite)
{
if (lpcszTargetFile == NULL)
{
return false;
}
WriteTrace(TracePath, TraceDebug, "copy \"%s\" to \"%s\"",m_strPath.c_str(),lpcszTargetFile);
#ifdef _WIN32
// Check if the target file exists
CPath TargetFile(lpcszTargetFile);
if (TargetFile.Exists())
{
// Yeah there is already such a target file
// Decide if we should overwrite
if (!bOverwrite)
{
return false;
}
// Delete any previous target
if (!TargetFile.Delete(true))
{
return false;
}
}
// CopyFile will set the target's attributes 2 the same as
// the source after copying
return CopyFileA(m_strPath.c_str(), lpcszTargetFile, !bOverwrite) != 0;
#else
bool res = true;
WriteTrace(TracePath, TraceDebug, "opening \"%s\" for reading",m_strPath.c_str());
FILE * infile = fopen(m_strPath.c_str(), "rb");
if(infile == NULL)
{
WriteTrace(TracePath, TraceWarning, "failed to open m_strPath = %s",m_strPath.c_str());
res = false;
}
else
{
WriteTrace(TracePath, TraceDebug, "opened \"%s\"",m_strPath.c_str());
}
FILE * outfile = NULL;
if (res)
{
WriteTrace(TracePath, TraceDebug, "opening \"%s\" for writing",lpcszTargetFile);
outfile = fopen(lpcszTargetFile, "wb");
if (outfile == NULL)
{
WriteTrace(TracePath, TraceWarning, "failed to open m_strPath = %s errno=%d",lpcszTargetFile, errno);
res = false;
}
else
{
WriteTrace(TracePath, TraceDebug, "opened \"%s\"",lpcszTargetFile);
}
}
if (res)
{
WriteTrace(TracePath, TraceDebug, "copying data");
while (!feof(infile))
{
char buffer[1024];
size_t bytes = fread(buffer, 1, sizeof(buffer), infile);
if (ferror(infile))
{
WriteTrace(TracePath, TraceWarning, "failed to read from %s", m_strPath.c_str());
res = false;
break;
}
if (!feof(infile))
{
size_t written = fwrite(buffer, 1, sizeof(buffer), outfile);
}
if (ferror(outfile))
{
WriteTrace(TracePath, TraceWarning, "failed to write to %s, ferror(outfile) = %X", lpcszTargetFile, ferror(outfile));
res = false;
break;
}
}
}
struct stat ts;
if (res)
{
if (fstat(fileno(infile), &ts) != 0)
{
WriteTrace(TracePath, TraceWarning, "fstat failed on %s, ferror(infile) = %X", m_strPath.c_str(), ferror(infile));
res = false;
}
}
if (res)
{
if (fchmod(fileno(outfile),ts.st_mode) != 0)
{
WriteTrace(TracePath, TraceWarning, "fchmod failed on %s, errno = %X", lpcszTargetFile, errno);
res = false;
}
}
if (infile != NULL)
{
fclose(infile);
}
if (outfile != NULL)
{
fclose(outfile);
}
WriteTrace(TracePath, TraceDebug, "Done, res: %s",res ? "true" : "false");
return res;
#endif
}
//-------------------------------------------------------------
// Post : Return TRUE on success, false if there is such a target file
// and we weren't granted permission 2 overwrite file or some error
// Task : Move file
//-------------------------------------------------------------
bool CPath::MoveTo(const char * lpcszTargetFile, bool bOverwrite)
{
#ifdef _WIN32
// Check if the target file exists
CPath TargetFile(lpcszTargetFile);
if (TargetFile.Exists())
{
// Yeah there is already such a target file
// Decide if we should overwrite
if (!bOverwrite)
{
return false;
}
// Delete any previous target
if (!TargetFile.Delete(TRUE))
{
return false;
}
}
return MoveFileA(m_strPath.c_str(), lpcszTargetFile) != 0;
#else
return false;
#endif
}
//-------------------------------------------------------------
// Post : Return TRUE if attributes do match
// Task : Compare finder attributes
//-------------------------------------------------------------
bool CPath::AttributesMatch(uint32_t dwTargetAttributes, uint32_t dwFileAttributes)
{
if (dwTargetAttributes == FIND_ATTRIBUTE_ALLFILES)
{
return true;
}
if (dwTargetAttributes == FIND_ATTRIBUTE_FILES)
{
return ((FIND_ATTRIBUTE_SUBDIR & dwFileAttributes) == 0);
}
return (((dwTargetAttributes & dwFileAttributes) != 0) && ((FIND_ATTRIBUTE_SUBDIR & dwTargetAttributes) == (FIND_ATTRIBUTE_SUBDIR & dwFileAttributes)));
}
//-------------------------------------------------------------
// Post : Return TRUE if any match found
// Task : Find the first file that meets this path and the specified attributes
// You can specify the current attributes of the file or directory
// The attributes are represented by a combination (|) of the following
// constants:
//
// _A_ARCH Archive. Set whenever the file is
// changed, and cleared by the BACKUP command
// _A_HIDDEN Hidden file. Not normally seen with
// the DIR command, unless the /AH option
// is used. Returns information about normal
// files as well as files with this attribute
// FIND_ATTRIBUTE_FILES Normal. File can be read or written to
// without restriction
// _A_RDONLY Read-only. File cannot be opened for writing,
// and a file with the same name cannot be created
// FIND_ATTRIBUTE_SUBDIR Subdirectory
// _A_SYSTEM System file. Not normally seen with the DIR
// command, unless the /AS option is used
//
// These attributes do not follow a simple additive logic
// Note that FIND_ATTRIBUTE_FILES is 0x00, so it effectively cannot be
// removed from the attribute set. You will therefore always
// get normal files, and may also get Archive, Hidden, etc.
// if you specify those attributes
// See aso: FindFirstFile, FindNextFile
//-------------------------------------------------------------
bool CPath::FindFirst(uint32_t dwAttributes /*= FIND_ATTRIBUTE_FILES*/)
{
// Close handle to any previous enumeration
Exit();
m_dwFindFileAttributes = dwAttributes;
#ifdef _WIN32
BOOL bGotFile;
BOOL bWantSubdirectory = (BOOL)(FIND_ATTRIBUTE_SUBDIR & dwAttributes);
// i.) Finding first candidate file
WIN32_FIND_DATAA FindData;
m_hFindFile = FindFirstFileA(m_strPath.c_str(), &FindData);
bGotFile = (m_hFindFile != INVALID_HANDLE_VALUE);
while (bGotFile)
{
// ii.) Compare candidate to attributes, and filter out the "." and ".." folders
if (!AttributesMatch(m_dwFindFileAttributes, FindData.dwFileAttributes))
goto LABEL_GetAnother;
if (bWantSubdirectory && (FindData.cFileName[0] == '.'))
goto LABEL_GetAnother;
// iii.) Found match, prepare result
if ((FIND_ATTRIBUTE_SUBDIR & FindData.dwFileAttributes) != 0)
StripTrailingBackslash(m_strPath);
SetNameExtension(FindData.cFileName);
if ((FIND_ATTRIBUTE_SUBDIR & FindData.dwFileAttributes) != 0)
EnsureTrailingBackslash(m_strPath);
return TRUE;
// iv.) Not found match, get another
LABEL_GetAnother:
bGotFile = FindNextFileA(m_hFindFile, &FindData);
}
#else
std::string Directory, Name, Extension;
GetComponents(&Directory, &Name, &Extension);
m_FindWildcard = Name;
if (!Extension.empty())
{
m_FindWildcard += EXTENSION_DELIMITER;
m_FindWildcard += Extension;
}
m_OpenedDir = opendir(Directory.c_str());
if (m_OpenedDir == NULL) return false;
return FindNext();
#endif
return false;
}
//-------------------------------------------------------------
// Post : Return TRUE if a new match found
// Task : Find the next file that meets the conditions specified
// in the last FindFirst call
//-------------------------------------------------------------
bool CPath::FindNext()
{
#ifdef _WIN32
if (m_hFindFile == NULL)
{
return false;
}
WIN32_FIND_DATAA FindData;
while (FindNextFileA(m_hFindFile, &FindData) != false)
{ // while(FindNext(...))
if (AttributesMatch(m_dwFindFileAttributes, FindData.dwFileAttributes))
{ // if(AttributesMatch(...)
if ((_A_SUBDIR & FindData.dwFileAttributes) == _A_SUBDIR)
{
if (IsDirectory())
{
// Found a directory
UpDirectory();
}
else
{
SetNameExtension("");
}
AppendDirectory(FindData.cFileName);
}
else
{
// Found a file
if (IsDirectory())
{
// Found a directory
UpDirectory();
}
SetNameExtension(FindData.cFileName);
}
if ((_A_SUBDIR & FindData.dwFileAttributes) == _A_SUBDIR)
{
EnsureTrailingBackslash(m_strPath);
}
return TRUE;
}
}
#else
dirent* pEntry;
while ((pEntry = readdir((DIR*)m_OpenedDir)))
{
uint32_t dwFileAttributes = pEntry->d_type == DT_DIR ? FIND_ATTRIBUTE_SUBDIR : FIND_ATTRIBUTE_FILES;
WriteTrace(TracePath, TraceVerbose, "m_dwFindFileAttributes = %X dwFileAttributes = %X AttributesMatch: %s",m_dwFindFileAttributes, dwFileAttributes, AttributesMatch(m_dwFindFileAttributes, dwFileAttributes) ? "true" : "false");
// ii.) Compare candidate to attributes, and filter out the "." and ".." folders
if (!AttributesMatch(m_dwFindFileAttributes, dwFileAttributes) ||
strcmp(pEntry->d_name,".") == 0 ||
strcmp(pEntry->d_name,"..") == 0 ||
!wildcmp(m_FindWildcard.c_str(),pEntry->d_name))
{
WriteTrace(TracePath, TraceVerbose, "continue, d_name = %s",pEntry->d_name);
continue;
}
if ((FIND_ATTRIBUTE_SUBDIR & dwFileAttributes) == FIND_ATTRIBUTE_SUBDIR)
{
WriteTrace(TracePath, TraceVerbose, "is dir");
if (IsDirectory())
{
// Found a directory
UpDirectory();
}
else
{
SetNameExtension("");
}
AppendDirectory(pEntry->d_name);
}
else
{
WriteTrace(TracePath, TraceVerbose, "is file");
// Found a file
if (IsDirectory())
{
// Found a directory
UpDirectory();
}
SetNameExtension(pEntry->d_name);
WriteTrace(TracePath, TraceVerbose, "m_strPath: %s pEntry->d_name: %s", m_strPath.c_str(), pEntry->d_name);
}
if ((FIND_ATTRIBUTE_SUBDIR & dwFileAttributes) == FIND_ATTRIBUTE_SUBDIR)
{
EnsureTrailingBackslash(m_strPath);
}
return true;
}
#endif
return false;
}
//-------------------------------------------------------------
// Post : Return TRUE on success
// Task : Change current working directory of application 2 path
//-------------------------------------------------------------
bool CPath::ChangeDirectory()
{
#ifdef _WIN32
std::string DriveDirectory;
GetDriveDirectory(DriveDirectory);
return SetCurrentDirectoryA(DriveDirectory.c_str()) != 0;
#else
std::string Dir;
GetDirectory(Dir);
return chdir(Dir.c_str()) == 0;
#endif
}
void CPath::NormalizePath(CPath BaseDir)
{
#ifdef _WIN32
stdstr Directory = BaseDir.GetDriveDirectory();
#else
stdstr Directory = BaseDir.GetDirectory();
#endif
bool Changed = false;
if (IsRelative())
{
EnsureTrailingBackslash(Directory);
Directory += GetDirectory();
Changed = true;
}
strvector Parts = Directory.Tokenize(DIRECTORY_DELIMITER);
strvector NormalizesParts;
for (strvector::const_iterator itr = Parts.begin(); itr != Parts.end(); itr++)
{
if (*itr == ".")
{
Changed = true;
}
else if (*itr == "..")
{
NormalizesParts.pop_back();
Changed = true;
}
else
{
NormalizesParts.push_back(*itr);
}
}
if (Changed)
{
Directory.clear();
for (strvector::const_iterator itr = NormalizesParts.begin(); itr != NormalizesParts.end(); itr++)
{
Directory += *itr + DIRECTORY_DELIMITER;
}
#ifdef _WIN32
SetDriveDirectory(Directory.c_str());
#else
SetDirectory(Directory.c_str());
#endif
}
}
//-------------------------------------------------------------
// Pre : If bCreateIntermediates is TRUE, create all eventually
// missing parent directories too
// Post : Return TRUE on success
// Task : Create new directory
//-------------------------------------------------------------
bool CPath::DirectoryCreate(bool bCreateIntermediates /*= TRUE*/)
{
WriteTrace(TracePath, TraceDebug, "m_strPath = %s bCreateIntermediates = %s",m_strPath.c_str(),bCreateIntermediates ? "true" : "false");
std::string PathText;
bool bSuccess;
if (DirectoryExists())
{
WriteTrace(TracePath, TraceDebug, "Directory already exists, res = true");
return true;
}
#ifdef _WIN32
GetDriveDirectory(PathText);
StripTrailingBackslash(PathText);
WriteTrace(TracePath, TraceDebug, "Create %s",PathText.c_str());
bSuccess = ::CreateDirectoryA(PathText.c_str(), NULL) != 0;
#else
GetDirectory(PathText);
StripTrailingBackslash(PathText);
WriteTrace(TracePath, TraceDebug, "Create %s",PathText.c_str());
bSuccess = mkdir(PathText.c_str(), S_IRWXU) == 0;
if (!bSuccess)
{
WriteTrace(TracePath, TraceWarning, "failed to create \"%s\" errno: %d",PathText.c_str(), errno);
}
#endif
if (!bSuccess && bCreateIntermediates)
{
WriteTrace(TracePath, TraceDebug, "failed creating intermediates");
std::string::size_type nDelimiter = PathText.rfind(DIRECTORY_DELIMITER);
if (nDelimiter == std::string::npos)
{
return false;
}
PathText.resize(nDelimiter + 1);
CPath SubPath(PathText);
return SubPath.DirectoryCreate() ? DirectoryCreate(false) : false;
}
WriteTrace(TracePath, TraceDebug, "res = %s",bSuccess ? "true" : "false");
return bSuccess;
}
//Helpers
//------------------------------------------------------------------------
// Task : Remove first character (if any) if it's chLeading
//------------------------------------------------------------------------
void CPath::cleanPathString(std::string& rDirectory) const
{
std::string::size_type pos = rDirectory.find(DIRECTORY_DELIMITER2);
while (pos != std::string::npos)
{
rDirectory.replace(pos, 1, &DIRECTORY_DELIMITER);
pos = rDirectory.find(DIRECTORY_DELIMITER2, pos + 1);
}
bool AppendEnd = !_strnicmp(rDirectory.c_str(), DIR_DOUBLEDELIM, 2);
pos = rDirectory.find(DIR_DOUBLEDELIM);
while (pos != std::string::npos)
{
rDirectory.replace(pos, 2, &DIRECTORY_DELIMITER);
pos = rDirectory.find(DIR_DOUBLEDELIM, pos + 1);
}
if (AppendEnd)
{
rDirectory.insert(0, stdstr_f("%c", DIRECTORY_DELIMITER).c_str());
}
}
void CPath::StripLeadingChar(std::string& rText, char chLeading) const
{
std::string::size_type nLength = rText.length();
if (nLength == 0)
return;
if (rText[0] == chLeading)
rText = rText.substr(1);
}
//------------------------------------------------------------------------
// Task : Remove first character if \
//------------------------------------------------------------------------
void CPath::StripLeadingBackslash(std::string& Directory) const
{
std::string::size_type nLength = Directory.length();
// If Directory is of the form '\', don't do it
if (nLength <= 1)
return;
if (Directory[0] == DIRECTORY_DELIMITER)
Directory = Directory.substr(1);
}
//------------------------------------------------------------------------
// Task : Remove last character (if any) if it's chTrailing
//------------------------------------------------------------------------
void CPath::StripTrailingChar(std::string& rText, char chTrailing) const
{
std::string::size_type nLength = rText.length();
if (nLength == 0)
return;
if (rText[nLength - 1] == chTrailing)
rText.resize(nLength - 1);
}
//------------------------------------------------------------------------
// Task : Remove last character if \
//------------------------------------------------------------------------
void CPath::StripTrailingBackslash(std::string& rDirectory) const
{
for (;;)
{
std::string::size_type nLength = rDirectory.length();
if (nLength <= 1)
{
return;
}
if (rDirectory[nLength - 1] == DIRECTORY_DELIMITER || rDirectory[nLength - 1] == DIRECTORY_DELIMITER2)
{
rDirectory.resize(nLength - 1);
continue;
}
return;
}
}
//------------------------------------------------------------------------
// Task : Add a backslash to the end of Directory if there is
// not already one there
//------------------------------------------------------------------------
void CPath::EnsureTrailingBackslash(std::string& Directory) const
{
std::string::size_type nLength = Directory.length();
if (Directory.empty() || (Directory[nLength - 1] != DIRECTORY_DELIMITER))
{
Directory += DIRECTORY_DELIMITER;
}
}
//------------------------------------------------------------------------
// Task : Add a backslash to the beginning of Directory if there
// is not already one there
//------------------------------------------------------------------------
void CPath::EnsureLeadingBackslash(std::string & Directory) const
{
if (Directory.empty() || (Directory[0] != DIRECTORY_DELIMITER))
{
Directory = stdstr_f("%c%s", DIRECTORY_DELIMITER, Directory.c_str());
}
}
#ifndef _WIN32
bool CPath::wildcmp(const char *wild, const char *string)
{
const char *cp = NULL, *mp = NULL;
while ((*string) && (*wild != '*'))
{
if ((*wild != *string) && (*wild != '?'))
{
return 0;
}
wild++;
string++;
}
while (*string)
{
if (*wild == '*')
{
if (!*++wild)
{
return 1;
}
mp = wild;
cp = string+1;
}
else if ((*wild == *string) || (*wild == '?'))
{
wild++;
string++;
}
else
{
wild = mp;
string = cp++;
}
}
while (*wild == '*')
{
wild++;
}
return !*wild;
}
#endif
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