src/common/filename.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/filename.cpp
   3 // Purpose:     wxFileName - encapsulates a file path
   4 // Author:      Robert Roebling, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.12.2000
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 /*
  13    Here are brief descriptions of the filename formats supported by this class:
  14
  15    wxPATH_UNIX: standard Unix format, used under Darwin as well, absolute file
  16                 names have the form:
  17                 /dir1/dir2/.../dirN/filename, "." and ".." stand for the
  18                 current and parent directory respectively, "~" is parsed as the
  19                 user HOME and "~username" as the HOME of that user
  20
  21    wxPATH_DOS:  DOS/Windows format, absolute file names have the form:
  22                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
  23                 letter. "." and ".." as for Unix but no "~".
  24
  25                 There are also UNC names of the form \\share\fullpath and
  26                 MSW unique volume names of the form \\?\Volume{GUID}\fullpath.
  27
  28                 The latter provide a uniform way to access a volume regardless of
  29                 its current mount point, i.e. you can change a volume's mount
  30                 point from D: to E:, or even remove it, and still be able to
  31                 access it through its unique volume name. More on the subject can
  32                 be found in MSDN's article "Naming a Volume" that is currently at
  33                 http://msdn.microsoft.com/en-us/library/aa365248(VS.85).aspx.
  34
  35
  36    wxPATH_MAC:  Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
  37                 names have the form
  38                     volume:dir1:...:dirN:filename
  39                 and the relative file names are either
  40                     :dir1:...:dirN:filename
  41                 or just
  42                     filename
  43                 (although :filename works as well).
  44                 Since the volume is just part of the file path, it is not
  45                 treated like a separate entity as it is done under DOS and
  46                 VMS, it is just treated as another dir.
  47
  48    wxPATH_VMS:  VMS native format, absolute file names have the form
  49                     <device>:[dir1.dir2.dir3]file.txt
  50                 or
  51                     <device>:[000000.dir1.dir2.dir3]file.txt
  52
  53                 the <device> is the physical device (i.e. disk). 000000 is the
  54                 root directory on the device which can be omitted.
  55
  56                 Note that VMS uses different separators unlike Unix:
  57                  : always after the device. If the path does not contain : than
  58                    the default (the device of the current directory) is assumed.
  59                  [ start of directory specification
  60                  . separator between directory and subdirectory
  61                  ] between directory and file
  62  */
  63
  64 // ============================================================================
  65 // declarations
  66 // ============================================================================
  67
  68 // ----------------------------------------------------------------------------
  69 // headers
  70 // ----------------------------------------------------------------------------
  71
  72 // For compilers that support precompilation, includes "wx.h".
  73 #include "wx/wxprec.h"
  74
  75 #ifdef __BORLANDC__
  76 #pragma hdrstop
  77 #endif
  78
  79 #ifndef WX_PRECOMP
  80     #ifdef __WXMSW__
  81         #include "wx/msw/wrapwin.h" // For GetShort/LongPathName
  82     #endif
  83     #include "wx/dynarray.h"
  84     #include "wx/intl.h"
  85     #include "wx/log.h"
  86     #include "wx/utils.h"
  87     #include "wx/crt.h"
  88 #endif
  89
  90 #include "wx/filename.h"
  91 #include "wx/private/filename.h"
  92 #include "wx/tokenzr.h"
  93 #include "wx/config.h"          // for wxExpandEnvVars
  94 #include "wx/dynlib.h"
  95 #include "wx/dir.h"
  96
  97 #if defined(__WIN32__) && defined(__MINGW32__)
  98     #include "wx/msw/gccpriv.h"
  99 #endif
 100
 101 #ifdef __WXMSW__
 102 #include "wx/msw/private.h"
 103 #endif
 104
 105 #if defined(__WXMAC__)
 106   #include  "wx/osx/private.h"  // includes mac headers
 107 #endif
 108
 109 // utime() is POSIX so should normally be available on all Unices
 110 #ifdef __UNIX_LIKE__
 111 #include <sys/types.h>
 112 #include <utime.h>
 113 #include <sys/stat.h>
 114 #include <unistd.h>
 115 #endif
 116
 117 #ifdef __DJGPP__
 118 #include <unistd.h>
 119 #endif
 120
 121 #ifdef __MWERKS__
 122 #ifdef __MACH__
 123 #include <sys/types.h>
 124 #include <utime.h>
 125 #include <sys/stat.h>
 126 #include <unistd.h>
 127 #else
 128 #include <stat.h>
 129 #include <unistd.h>
 130 #include <unix.h>
 131 #endif
 132 #endif
 133
 134 #ifdef __WATCOMC__
 135 #include <io.h>
 136 #include <sys/utime.h>
 137 #include <sys/stat.h>
 138 #endif
 139
 140 #ifdef __VISAGECPP__
 141 #ifndef MAX_PATH
 142 #define MAX_PATH 256
 143 #endif
 144 #endif
 145
 146 #ifdef __EMX__
 147 #include <os2.h>
 148 #define MAX_PATH _MAX_PATH
 149 #endif
 150
 151
 152 #if wxUSE_LONGLONG
 153 extern const wxULongLong wxInvalidSize = (unsigned)-1;
 154 #endif // wxUSE_LONGLONG
 155
 156 #ifdef __WIN32__
 157     // this define is missing from VC6 headers
 158     #ifndef INVALID_FILE_ATTRIBUTES
 159         #define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
 160     #endif
 161 #endif // __WIN32__
 162
 163 namespace
 164 {
 165
 166 // ----------------------------------------------------------------------------
 167 // private classes
 168 // ----------------------------------------------------------------------------
 169
 170 // small helper class which opens and closes the file - we use it just to get
 171 // a file handle for the given file name to pass it to some Win32 API function
 172 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 173
 174 class wxFileHandle
 175 {
 176 public:
 177     enum OpenMode
 178     {
 179         ReadAttr,
 180         WriteAttr
 181     };
 182
 183     wxFileHandle(const wxString& filename, OpenMode mode, int flags = 0)
 184     {
 185         // be careful and use FILE_{READ,WRITE}_ATTRIBUTES here instead of the
 186         // usual GENERIC_{READ,WRITE} as we don't want the file access time to
 187         // be changed when we open it because this class is used for setting
 188         // access time (see #10567)
 189         m_hFile = ::CreateFile
 190                     (
 191                      filename.t_str(),             // name
 192                      mode == ReadAttr ? FILE_READ_ATTRIBUTES    // access mask
 193                                       : FILE_WRITE_ATTRIBUTES,
 194                      FILE_SHARE_READ |              // sharing mode
 195                      FILE_SHARE_WRITE,              // (allow everything)
 196                      NULL,                          // no secutity attr
 197                      OPEN_EXISTING,                 // creation disposition
 198                      flags,                         // flags
 199                      NULL                           // no template file
 200                     );
 201
 202         if ( m_hFile == INVALID_HANDLE_VALUE )
 203         {
 204             if ( mode == ReadAttr )
 205             {
 206                 wxLogSysError(_("Failed to open '%s' for reading"),
 207                               filename.c_str());
 208             }
 209             else
 210             {
 211                 wxLogSysError(_("Failed to open '%s' for writing"),
 212                               filename.c_str());
 213             }
 214         }
 215     }
 216
 217     ~wxFileHandle()
 218     {
 219         if ( m_hFile != INVALID_HANDLE_VALUE )
 220         {
 221             if ( !::CloseHandle(m_hFile) )
 222             {
 223                 wxLogSysError(_("Failed to close file handle"));
 224             }
 225         }
 226     }
 227
 228     // return true only if the file could be opened successfully
 229     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 230
 231     // get the handle
 232     operator HANDLE() const { return m_hFile; }
 233
 234 private:
 235     HANDLE m_hFile;
 236 };
 237
 238 #endif // __WIN32__
 239
 240 // ----------------------------------------------------------------------------
 241 // private functions
 242 // ----------------------------------------------------------------------------
 243
 244 #if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
 245
 246 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 247 // the number of 100-nanosecond intervals since January 1, 1601.
 248
 249 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 250 {
 251     FILETIME ftcopy = ft;
 252     FILETIME ftLocal;
 253     if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
 254     {
 255         wxLogLastError(wxT("FileTimeToLocalFileTime"));
 256     }
 257
 258     SYSTEMTIME st;
 259     if ( !::FileTimeToSystemTime(&ftLocal, &st) )
 260     {
 261         wxLogLastError(wxT("FileTimeToSystemTime"));
 262     }
 263
 264     dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
 265             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
 266 }
 267
 268 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 269 {
 270     SYSTEMTIME st;
 271     st.wDay = dt.GetDay();
 272     st.wMonth = (WORD)(dt.GetMonth() + 1);
 273     st.wYear = (WORD)dt.GetYear();
 274     st.wHour = dt.GetHour();
 275     st.wMinute = dt.GetMinute();
 276     st.wSecond = dt.GetSecond();
 277     st.wMilliseconds = dt.GetMillisecond();
 278
 279     FILETIME ftLocal;
 280     if ( !::SystemTimeToFileTime(&st, &ftLocal) )
 281     {
 282         wxLogLastError(wxT("SystemTimeToFileTime"));
 283     }
 284
 285     if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
 286     {
 287         wxLogLastError(wxT("LocalFileTimeToFileTime"));
 288     }
 289 }
 290
 291 #endif // wxUSE_DATETIME && __WIN32__
 292
 293 // return a string with the volume par
 294 static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
 295 {
 296     wxString path;
 297
 298     if ( !volume.empty() )
 299     {
 300         format = wxFileName::GetFormat(format);
 301
 302         // Special Windows UNC paths hack, part 2: undo what we did in
 303         // SplitPath() and make an UNC path if we have a drive which is not a
 304         // single letter (hopefully the network shares can't be one letter only
 305         // although I didn't find any authoritative docs on this)
 306         if ( format == wxPATH_DOS && volume.length() > 1 )
 307         {
 308             // We also have to check for Windows unique volume names here and
 309             // return it with '\\?\' prepended to it
 310             if ( wxFileName::IsMSWUniqueVolumeNamePath("\\\\?\\" + volume + "\\",
 311                                                        format) )
 312             {
 313                 path << "\\\\?\\" << volume;
 314             }
 315             else
 316             {
 317                 // it must be a UNC path
 318                 path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 319             }
 320         }
 321         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 322         {
 323             path << volume << wxFileName::GetVolumeSeparator(format);
 324         }
 325         // else ignore
 326     }
 327
 328     return path;
 329 }
 330
 331 // return true if the character is a DOS path separator i.e. either a slash or
 332 // a backslash
 333 inline bool IsDOSPathSep(wxUniChar ch)
 334 {
 335     return ch == wxFILE_SEP_PATH_DOS || ch == wxFILE_SEP_PATH_UNIX;
 336 }
 337
 338 // return true if the format used is the DOS/Windows one and the string looks
 339 // like a UNC path
 340 static bool IsUNCPath(const wxString& path, wxPathFormat format)
 341 {
 342     return format == wxPATH_DOS &&
 343                 path.length() >= 4 && // "\\a" can't be a UNC path
 344                     IsDOSPathSep(path[0u]) &&
 345                         IsDOSPathSep(path[1u]) &&
 346                             !IsDOSPathSep(path[2u]);
 347 }
 348
 349 // ----------------------------------------------------------------------------
 350 // private constants
 351 // ----------------------------------------------------------------------------
 352
 353 // length of \\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\ string
 354 static const size_t wxMSWUniqueVolumePrefixLength = 49;
 355
 356 } // anonymous namespace
 357
 358 // ============================================================================
 359 // implementation
 360 // ============================================================================
 361
 362 // ----------------------------------------------------------------------------
 363 // wxFileName construction
 364 // ----------------------------------------------------------------------------
 365
 366 void wxFileName::Assign( const wxFileName &filepath )
 367 {
 368     m_volume = filepath.GetVolume();
 369     m_dirs = filepath.GetDirs();
 370     m_name = filepath.GetName();
 371     m_ext = filepath.GetExt();
 372     m_relative = filepath.m_relative;
 373     m_hasExt = filepath.m_hasExt;
 374 }
 375
 376 void wxFileName::Assign(const wxString& volume,
 377                         const wxString& path,
 378                         const wxString& name,
 379                         const wxString& ext,
 380                         bool hasExt,
 381                         wxPathFormat format)
 382 {
 383     // we should ignore paths which look like UNC shares because we already
 384     // have the volume here and the UNC notation (\\server\path) is only valid
 385     // for paths which don't start with a volume, so prevent SetPath() from
 386     // recognizing "\\foo\bar" in "c:\\foo\bar" as an UNC path
 387     //
 388     // note also that this is a rather ugly way to do what we want (passing
 389     // some kind of flag telling to ignore UNC paths to SetPath() would be
 390     // better) but this is the safest thing to do to avoid breaking backwards
 391     // compatibility in 2.8
 392     if ( IsUNCPath(path, format) )
 393     {
 394         // remove one of the 2 leading backslashes to ensure that it's not
 395         // recognized as an UNC path by SetPath()
 396         wxString pathNonUNC(path, 1, wxString::npos);
 397         SetPath(pathNonUNC, format);
 398     }
 399     else // no UNC complications
 400     {
 401         SetPath(path, format);
 402     }
 403
 404     m_volume = volume;
 405     m_ext = ext;
 406     m_name = name;
 407
 408     m_hasExt = hasExt;
 409 }
 410
 411 void wxFileName::SetPath( const wxString& pathOrig, wxPathFormat format )
 412 {
 413     m_dirs.Clear();
 414
 415     if ( pathOrig.empty() )
 416     {
 417         // no path at all
 418         m_relative = true;
 419
 420         return;
 421     }
 422
 423     format = GetFormat( format );
 424
 425     // 0) deal with possible volume part first
 426     wxString volume,
 427              path;
 428     SplitVolume(pathOrig, &volume, &path, format);
 429     if ( !volume.empty() )
 430     {
 431         m_relative = false;
 432
 433         SetVolume(volume);
 434     }
 435
 436     // 1) Determine if the path is relative or absolute.
 437
 438     if ( path.empty() )
 439     {
 440         // we had only the volume
 441         return;
 442     }
 443
 444     wxChar leadingChar = path[0u];
 445
 446     switch (format)
 447     {
 448         case wxPATH_MAC:
 449             m_relative = leadingChar == wxT(':');
 450
 451             // We then remove a leading ":". The reason is in our
 452             // storage form for relative paths:
 453             // ":dir:file.txt" actually means "./dir/file.txt" in
 454             // DOS notation and should get stored as
 455             // (relative) (dir) (file.txt)
 456             // "::dir:file.txt" actually means "../dir/file.txt"
 457             // stored as (relative) (..) (dir) (file.txt)
 458             // This is important only for the Mac as an empty dir
 459             // actually means <UP>, whereas under DOS, double
 460             // slashes can be ignored: "\\\\" is the same as "\\".
 461             if (m_relative)
 462                 path.erase( 0, 1 );
 463             break;
 464
 465         case wxPATH_VMS:
 466             // TODO: what is the relative path format here?
 467             m_relative = false;
 468             break;
 469
 470         default:
 471             wxFAIL_MSG( wxT("Unknown path format") );
 472             // !! Fall through !!
 473
 474         case wxPATH_UNIX:
 475             m_relative = leadingChar != wxT('/');
 476             break;
 477
 478         case wxPATH_DOS:
 479             m_relative = !IsPathSeparator(leadingChar, format);
 480             break;
 481
 482     }
 483
 484     // 2) Break up the path into its members. If the original path
 485     //    was just "/" or "\\", m_dirs will be empty. We know from
 486     //    the m_relative field, if this means "nothing" or "root dir".
 487
 488     wxStringTokenizer tn( path, GetPathSeparators(format) );
 489
 490     while ( tn.HasMoreTokens() )
 491     {
 492         wxString token = tn.GetNextToken();
 493
 494         // Remove empty token under DOS and Unix, interpret them
 495         // as .. under Mac.
 496         if (token.empty())
 497         {
 498             if (format == wxPATH_MAC)
 499                 m_dirs.Add( wxT("..") );
 500             // else ignore
 501         }
 502         else
 503         {
 504            m_dirs.Add( token );
 505         }
 506     }
 507 }
 508
 509 void wxFileName::Assign(const wxString& fullpath,
 510                         wxPathFormat format)
 511 {
 512     wxString volume, path, name, ext;
 513     bool hasExt;
 514     SplitPath(fullpath, &volume, &path, &name, &ext, &hasExt, format);
 515
 516     Assign(volume, path, name, ext, hasExt, format);
 517 }
 518
 519 void wxFileName::Assign(const wxString& fullpathOrig,
 520                         const wxString& fullname,
 521                         wxPathFormat format)
 522 {
 523     // always recognize fullpath as directory, even if it doesn't end with a
 524     // slash
 525     wxString fullpath = fullpathOrig;
 526     if ( !fullpath.empty() && !wxEndsWithPathSeparator(fullpath) )
 527     {
 528         fullpath += GetPathSeparator(format);
 529     }
 530
 531     wxString volume, path, name, ext;
 532     bool hasExt;
 533
 534     // do some consistency checks: the name should be really just the filename
 535     // and the path should be really just a path
 536     wxString volDummy, pathDummy, nameDummy, extDummy;
 537
 538     SplitPath(fullname, &volDummy, &pathDummy, &name, &ext, &hasExt, format);
 539
 540     wxASSERT_MSG( volDummy.empty() && pathDummy.empty(),
 541                   wxT("the file name shouldn't contain the path") );
 542
 543     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 544
 545 #ifndef __VMS
 546    // This test makes no sense on an OpenVMS system.
 547    wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 548                   wxT("the path shouldn't contain file name nor extension") );
 549 #endif
 550     Assign(volume, path, name, ext, hasExt, format);
 551 }
 552
 553 void wxFileName::Assign(const wxString& pathOrig,
 554                         const wxString& name,
 555                         const wxString& ext,
 556                         wxPathFormat format)
 557 {
 558     wxString volume,
 559              path;
 560     SplitVolume(pathOrig, &volume, &path, format);
 561
 562     Assign(volume, path, name, ext, format);
 563 }
 564
 565 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 566 {
 567     Assign(dir, wxEmptyString, format);
 568 }
 569
 570 void wxFileName::Clear()
 571 {
 572     m_dirs.Clear();
 573
 574     m_volume =
 575     m_name =
 576     m_ext = wxEmptyString;
 577
 578     // we don't have any absolute path for now
 579     m_relative = true;
 580
 581     // nor any extension
 582     m_hasExt = false;
 583 }
 584
 585 /* static */
 586 wxFileName wxFileName::FileName(const wxString& file, wxPathFormat format)
 587 {
 588     return wxFileName(file, format);
 589 }
 590
 591 /* static */
 592 wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
 593 {
 594     wxFileName fn;
 595     fn.AssignDir(dir, format);
 596     return fn;
 597 }
 598
 599 // ----------------------------------------------------------------------------
 600 // existence tests
 601 // ----------------------------------------------------------------------------
 602
 603 bool wxFileName::FileExists() const
 604 {
 605     return wxFileName::FileExists( GetFullPath() );
 606 }
 607
 608 /* static */
 609 bool wxFileName::FileExists( const wxString &filePath )
 610 {
 611 #if defined(__WXPALMOS__)
 612     return false;
 613 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
 614     // we must use GetFileAttributes() instead of the ANSI C functions because
 615     // it can cope with network (UNC) paths unlike them
 616     DWORD ret = ::GetFileAttributes(filePath.t_str());
 617
 618     return (ret != INVALID_FILE_ATTRIBUTES) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 619 #else // !__WIN32__
 620     #ifndef S_ISREG
 621         #define S_ISREG(mode) ((mode) & S_IFREG)
 622     #endif
 623     wxStructStat st;
 624
 625     return (wxStat( filePath, &st) == 0 && S_ISREG(st.st_mode))
 626 #ifdef __OS2__
 627       || (errno == EACCES) // if access is denied something with that name
 628                             // exists and is opened in exclusive mode.
 629 #endif
 630       ;
 631 #endif // __WIN32__/!__WIN32__
 632 }
 633
 634 bool wxFileName::DirExists() const
 635 {
 636     return wxFileName::DirExists( GetPath() );
 637 }
 638
 639 /* static */
 640 bool wxFileName::DirExists( const wxString &dirPath )
 641 {
 642     wxString strPath(dirPath);
 643
 644 #if defined(__WINDOWS__) || defined(__OS2__)
 645     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
 646     // so remove all trailing backslashes from the path - but don't do this for
 647     // the paths "d:\" (which are different from "d:"), for just "\" or for
 648     // windows unique volume names ("\\?\Volume{GUID}\")
 649     while ( wxEndsWithPathSeparator(strPath) )
 650     {
 651         size_t len = strPath.length();
 652         if ( len == 1 || (len == 3 && strPath[len - 2] == wxT(':')) ||
 653             (len == wxMSWUniqueVolumePrefixLength &&
 654              wxFileName::IsMSWUniqueVolumeNamePath(strPath)))
 655         {
 656             break;
 657         }
 658
 659         strPath.Truncate(len - 1);
 660     }
 661 #endif // __WINDOWS__
 662
 663 #ifdef __OS2__
 664     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
 665     if (strPath.length() == 2 && strPath[1u] == wxT(':'))
 666         strPath << wxT('.');
 667 #endif
 668
 669 #if defined(__WXPALMOS__)
 670     return false;
 671 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
 672     // stat() can't cope with network paths
 673     DWORD ret = ::GetFileAttributes(strPath.t_str());
 674
 675     return (ret != INVALID_FILE_ATTRIBUTES) && (ret & FILE_ATTRIBUTE_DIRECTORY);
 676 #elif defined(__OS2__)
 677     FILESTATUS3 Info = {{0}};
 678     APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
 679                                    (void*) &Info, sizeof(FILESTATUS3));
 680
 681     return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
 682       (rc == ERROR_SHARING_VIOLATION);
 683     // If we got a sharing violation, there must be something with this name.
 684 #else // !__WIN32__
 685
 686     wxStructStat st;
 687 #ifndef __VISAGECPP__
 688     return wxStat(strPath, &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
 689 #else
 690     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
 691     return wxStat(strPath, &st) == 0 && (st.st_mode == S_IFDIR);
 692 #endif
 693
 694 #endif // __WIN32__/!__WIN32__
 695 }
 696
 697 // ----------------------------------------------------------------------------
 698 // CWD and HOME stuff
 699 // ----------------------------------------------------------------------------
 700
 701 void wxFileName::AssignCwd(const wxString& volume)
 702 {
 703     AssignDir(wxFileName::GetCwd(volume));
 704 }
 705
 706 /* static */
 707 wxString wxFileName::GetCwd(const wxString& volume)
 708 {
 709     // if we have the volume, we must get the current directory on this drive
 710     // and to do this we have to chdir to this volume - at least under Windows,
 711     // I don't know how to get the current drive on another volume elsewhere
 712     // (TODO)
 713     wxString cwdOld;
 714     if ( !volume.empty() )
 715     {
 716         cwdOld = wxGetCwd();
 717         SetCwd(volume + GetVolumeSeparator());
 718     }
 719
 720     wxString cwd = ::wxGetCwd();
 721
 722     if ( !volume.empty() )
 723     {
 724         SetCwd(cwdOld);
 725     }
 726
 727     return cwd;
 728 }
 729
 730 bool wxFileName::SetCwd() const
 731 {
 732     return wxFileName::SetCwd( GetPath() );
 733 }
 734
 735 bool wxFileName::SetCwd( const wxString &cwd )
 736 {
 737     return ::wxSetWorkingDirectory( cwd );
 738 }
 739
 740 void wxFileName::AssignHomeDir()
 741 {
 742     AssignDir(wxFileName::GetHomeDir());
 743 }
 744
 745 wxString wxFileName::GetHomeDir()
 746 {
 747     return ::wxGetHomeDir();
 748 }
 749
 750
 751 // ----------------------------------------------------------------------------
 752 // CreateTempFileName
 753 // ----------------------------------------------------------------------------
 754
 755 #if wxUSE_FILE || wxUSE_FFILE
 756
 757
 758 #if !defined wx_fdopen && defined HAVE_FDOPEN
 759     #define wx_fdopen fdopen
 760 #endif
 761
 762 // NB: GetTempFileName() under Windows creates the file, so using
 763 //     O_EXCL there would fail
 764 #ifdef __WINDOWS__
 765     #define wxOPEN_EXCL 0
 766 #else
 767     #define wxOPEN_EXCL O_EXCL
 768 #endif
 769
 770
 771 #ifdef wxOpenOSFHandle
 772 #define WX_HAVE_DELETE_ON_CLOSE
 773 // On Windows create a file with the FILE_FLAGS_DELETE_ON_CLOSE flags.
 774 //
 775 static int wxOpenWithDeleteOnClose(const wxString& filename)
 776 {
 777     DWORD access = GENERIC_READ | GENERIC_WRITE;
 778
 779     DWORD disposition = OPEN_ALWAYS;
 780
 781     DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
 782                        FILE_FLAG_DELETE_ON_CLOSE;
 783
 784     HANDLE h = ::CreateFile(filename.fn_str(), access, 0, NULL,
 785                             disposition, attributes, NULL);
 786
 787     return wxOpenOSFHandle(h, wxO_BINARY);
 788 }
 789 #endif // wxOpenOSFHandle
 790
 791
 792 // Helper to open the file
 793 //
 794 static int wxTempOpen(const wxString& path, bool *deleteOnClose)
 795 {
 796 #ifdef WX_HAVE_DELETE_ON_CLOSE
 797     if (*deleteOnClose)
 798         return wxOpenWithDeleteOnClose(path);
 799 #endif
 800
 801     *deleteOnClose = false;
 802
 803     return wxOpen(path, wxO_BINARY | O_RDWR | O_CREAT | wxOPEN_EXCL, 0600);
 804 }
 805
 806
 807 #if wxUSE_FFILE
 808 // Helper to open the file and attach it to the wxFFile
 809 //
 810 static bool wxTempOpen(wxFFile *file, const wxString& path, bool *deleteOnClose)
 811 {
 812 #ifndef wx_fdopen
 813     *deleteOnClose = false;
 814     return file->Open(path, wxT("w+b"));
 815 #else // wx_fdopen
 816     int fd = wxTempOpen(path, deleteOnClose);
 817     if (fd == -1)
 818         return false;
 819     file->Attach(wx_fdopen(fd, "w+b"));
 820     return file->IsOpened();
 821 #endif // wx_fdopen
 822 }
 823 #endif // wxUSE_FFILE
 824
 825
 826 #if !wxUSE_FILE
 827     #define WXFILEARGS(x, y) y
 828 #elif !wxUSE_FFILE
 829     #define WXFILEARGS(x, y) x
 830 #else
 831     #define WXFILEARGS(x, y) x, y
 832 #endif
 833
 834
 835 // Implementation of wxFileName::CreateTempFileName().
 836 //
 837 static wxString wxCreateTempImpl(
 838         const wxString& prefix,
 839         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
 840         bool *deleteOnClose = NULL)
 841 {
 842 #if wxUSE_FILE && wxUSE_FFILE
 843     wxASSERT(fileTemp == NULL || ffileTemp == NULL);
 844 #endif
 845     wxString path, dir, name;
 846     bool wantDeleteOnClose = false;
 847
 848     if (deleteOnClose)
 849     {
 850         // set the result to false initially
 851         wantDeleteOnClose = *deleteOnClose;
 852         *deleteOnClose = false;
 853     }
 854     else
 855     {
 856         // easier if it alwasys points to something
 857         deleteOnClose = &wantDeleteOnClose;
 858     }
 859
 860     // use the directory specified by the prefix
 861     wxFileName::SplitPath(prefix, &dir, &name, NULL /* extension */);
 862
 863     if (dir.empty())
 864     {
 865         dir = wxFileName::GetTempDir();
 866     }
 867
 868 #if defined(__WXWINCE__)
 869     path = dir + wxT("\\") + name;
 870     int i = 1;
 871     while (wxFileName::FileExists(path))
 872     {
 873         path = dir + wxT("\\") + name ;
 874         path << i;
 875         i ++;
 876     }
 877
 878 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 879     if (!::GetTempFileName(dir.t_str(), name.t_str(), 0,
 880                            wxStringBuffer(path, MAX_PATH + 1)))
 881     {
 882         wxLogLastError(wxT("GetTempFileName"));
 883
 884         path.clear();
 885     }
 886
 887 #else // !Windows
 888     path = dir;
 889
 890     if ( !wxEndsWithPathSeparator(dir) &&
 891             (name.empty() || !wxIsPathSeparator(name[0u])) )
 892     {
 893         path += wxFILE_SEP_PATH;
 894     }
 895
 896     path += name;
 897
 898 #if defined(HAVE_MKSTEMP)
 899     // scratch space for mkstemp()
 900     path += wxT("XXXXXX");
 901
 902     // we need to copy the path to the buffer in which mkstemp() can modify it
 903     wxCharBuffer buf(path.fn_str());
 904
 905     // cast is safe because the string length doesn't change
 906     int fdTemp = mkstemp( (char*)(const char*) buf );
 907     if ( fdTemp == -1 )
 908     {
 909         // this might be not necessary as mkstemp() on most systems should have
 910         // already done it but it doesn't hurt neither...
 911         path.clear();
 912     }
 913     else // mkstemp() succeeded
 914     {
 915         path = wxConvFile.cMB2WX( (const char*) buf );
 916
 917     #if wxUSE_FILE
 918         // avoid leaking the fd
 919         if ( fileTemp )
 920         {
 921             fileTemp->Attach(fdTemp);
 922         }
 923         else
 924     #endif
 925
 926     #if wxUSE_FFILE
 927         if ( ffileTemp )
 928         {
 929         #ifdef wx_fdopen
 930             ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"));
 931         #else
 932             ffileTemp->Open(path, wxT("r+b"));
 933             close(fdTemp);
 934         #endif
 935         }
 936         else
 937     #endif
 938
 939         {
 940             close(fdTemp);
 941         }
 942     }
 943 #else // !HAVE_MKSTEMP
 944
 945 #ifdef HAVE_MKTEMP
 946     // same as above
 947     path += wxT("XXXXXX");
 948
 949     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 950     if ( !mktemp( (char*)(const char*) buf ) )
 951     {
 952         path.clear();
 953     }
 954     else
 955     {
 956         path = wxConvFile.cMB2WX( (const char*) buf );
 957     }
 958 #else // !HAVE_MKTEMP (includes __DOS__)
 959     // generate the unique file name ourselves
 960     #if !defined(__DOS__) && !defined(__PALMOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
 961     path << (unsigned int)getpid();
 962     #endif
 963
 964     wxString pathTry;
 965
 966     static const size_t numTries = 1000;
 967     for ( size_t n = 0; n < numTries; n++ )
 968     {
 969         // 3 hex digits is enough for numTries == 1000 < 4096
 970         pathTry = path + wxString::Format(wxT("%.03x"), (unsigned int) n);
 971         if ( !wxFileName::FileExists(pathTry) )
 972         {
 973             break;
 974         }
 975
 976         pathTry.clear();
 977     }
 978
 979     path = pathTry;
 980 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 981
 982 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 983
 984 #endif // Windows/!Windows
 985
 986     if ( path.empty() )
 987     {
 988         wxLogSysError(_("Failed to create a temporary file name"));
 989     }
 990     else
 991     {
 992         bool ok = true;
 993
 994         // open the file - of course, there is a race condition here, this is
 995         // why we always prefer using mkstemp()...
 996     #if wxUSE_FILE
 997         if ( fileTemp && !fileTemp->IsOpened() )
 998         {
 999             *deleteOnClose = wantDeleteOnClose;
1000             int fd = wxTempOpen(path, deleteOnClose);
1001             if (fd != -1)
1002                 fileTemp->Attach(fd);
1003             else
1004                 ok = false;
1005         }
1006     #endif
1007
1008     #if wxUSE_FFILE
1009         if ( ffileTemp && !ffileTemp->IsOpened() )
1010         {
1011             *deleteOnClose = wantDeleteOnClose;
1012             ok = wxTempOpen(ffileTemp, path, deleteOnClose);
1013         }
1014     #endif
1015
1016         if ( !ok )
1017         {
1018             // FIXME: If !ok here should we loop and try again with another
1019             //        file name?  That is the standard recourse if open(O_EXCL)
1020             //        fails, though of course it should be protected against
1021             //        possible infinite looping too.
1022
1023             wxLogError(_("Failed to open temporary file."));
1024
1025             path.clear();
1026         }
1027     }
1028
1029     return path;
1030 }
1031
1032
1033 static bool wxCreateTempImpl(
1034         const wxString& prefix,
1035         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp),
1036         wxString *name)
1037 {
1038     bool deleteOnClose = true;
1039
1040     *name = wxCreateTempImpl(prefix,
1041                              WXFILEARGS(fileTemp, ffileTemp),
1042                              &deleteOnClose);
1043
1044     bool ok = !name->empty();
1045
1046     if (deleteOnClose)
1047         name->clear();
1048 #ifdef __UNIX__
1049     else if (ok && wxRemoveFile(*name))
1050         name->clear();
1051 #endif
1052
1053     return ok;
1054 }
1055
1056
1057 static void wxAssignTempImpl(
1058         wxFileName *fn,
1059         const wxString& prefix,
1060         WXFILEARGS(wxFile *fileTemp, wxFFile *ffileTemp))
1061 {
1062     wxString tempname;
1063     tempname = wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, ffileTemp));
1064
1065     if ( tempname.empty() )
1066     {
1067         // error, failed to get temp file name
1068         fn->Clear();
1069     }
1070     else // ok
1071     {
1072         fn->Assign(tempname);
1073     }
1074 }
1075
1076
1077 void wxFileName::AssignTempFileName(const wxString& prefix)
1078 {
1079     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, NULL));
1080 }
1081
1082 /* static */
1083 wxString wxFileName::CreateTempFileName(const wxString& prefix)
1084 {
1085     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, NULL));
1086 }
1087
1088 #endif // wxUSE_FILE || wxUSE_FFILE
1089
1090
1091 #if wxUSE_FILE
1092
1093 wxString wxCreateTempFileName(const wxString& prefix,
1094                               wxFile *fileTemp,
1095                               bool *deleteOnClose)
1096 {
1097     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), deleteOnClose);
1098 }
1099
1100 bool wxCreateTempFile(const wxString& prefix,
1101                       wxFile *fileTemp,
1102                       wxString *name)
1103 {
1104     return wxCreateTempImpl(prefix, WXFILEARGS(fileTemp, NULL), name);
1105 }
1106
1107 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
1108 {
1109     wxAssignTempImpl(this, prefix, WXFILEARGS(fileTemp, NULL));
1110 }
1111
1112 /* static */
1113 wxString
1114 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
1115 {
1116     return wxCreateTempFileName(prefix, fileTemp);
1117 }
1118
1119 #endif // wxUSE_FILE
1120
1121
1122 #if wxUSE_FFILE
1123
1124 wxString wxCreateTempFileName(const wxString& prefix,
1125                               wxFFile *fileTemp,
1126                               bool *deleteOnClose)
1127 {
1128     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), deleteOnClose);
1129 }
1130
1131 bool wxCreateTempFile(const wxString& prefix,
1132                       wxFFile *fileTemp,
1133                       wxString *name)
1134 {
1135     return wxCreateTempImpl(prefix, WXFILEARGS(NULL, fileTemp), name);
1136
1137 }
1138
1139 void wxFileName::AssignTempFileName(const wxString& prefix, wxFFile *fileTemp)
1140 {
1141     wxAssignTempImpl(this, prefix, WXFILEARGS(NULL, fileTemp));
1142 }
1143
1144 /* static */
1145 wxString
1146 wxFileName::CreateTempFileName(const wxString& prefix, wxFFile *fileTemp)
1147 {
1148     return wxCreateTempFileName(prefix, fileTemp);
1149 }
1150
1151 #endif // wxUSE_FFILE
1152
1153
1154 // ----------------------------------------------------------------------------
1155 // directory operations
1156 // ----------------------------------------------------------------------------
1157
1158 // helper of GetTempDir(): check if the given directory exists and return it if
1159 // it does or an empty string otherwise
1160 namespace
1161 {
1162
1163 wxString CheckIfDirExists(const wxString& dir)
1164 {
1165     return wxFileName::DirExists(dir) ? dir : wxString();
1166 }
1167
1168 } // anonymous namespace
1169
1170 wxString wxFileName::GetTempDir()
1171 {
1172     // first try getting it from environment: this allows overriding the values
1173     // used by default if the user wants to create temporary files in another
1174     // directory
1175     wxString dir = CheckIfDirExists(wxGetenv("TMPDIR"));
1176     if ( dir.empty() )
1177     {
1178         dir = CheckIfDirExists(wxGetenv("TMP"));
1179         if ( dir.empty() )
1180             dir = CheckIfDirExists(wxGetenv("TEMP"));
1181     }
1182
1183     // if no environment variables are set, use the system default
1184     if ( dir.empty() )
1185     {
1186 #if defined(__WXWINCE__)
1187         dir = CheckIfDirExists(wxT("\\temp"));
1188 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1189         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
1190         {
1191             wxLogLastError(wxT("GetTempPath"));
1192         }
1193 #elif defined(__WXMAC__) && wxOSX_USE_CARBON
1194         dir = wxMacFindFolderNoSeparator(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
1195 #endif // systems with native way
1196     }
1197     else // we got directory from an environment variable
1198     {
1199         // remove any trailing path separators, we don't want to ever return
1200         // them from this function for consistency
1201         const size_t lastNonSep = dir.find_last_not_of(GetPathSeparators());
1202         if ( lastNonSep == wxString::npos )
1203         {
1204             // the string consists entirely of separators, leave only one
1205             dir = GetPathSeparator();
1206         }
1207         else
1208         {
1209             dir.erase(lastNonSep + 1);
1210         }
1211     }
1212
1213     // fall back to hard coded value
1214     if ( dir.empty() )
1215     {
1216 #ifdef __UNIX_LIKE__
1217         dir = CheckIfDirExists("/tmp");
1218         if ( dir.empty() )
1219 #endif // __UNIX_LIKE__
1220             dir = ".";
1221     }
1222
1223     return dir;
1224 }
1225
1226 bool wxFileName::Mkdir( int perm, int flags ) const
1227 {
1228     return wxFileName::Mkdir(GetPath(), perm, flags);
1229 }
1230
1231 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
1232 {
1233     if ( flags & wxPATH_MKDIR_FULL )
1234     {
1235         // split the path in components
1236         wxFileName filename;
1237         filename.AssignDir(dir);
1238
1239         wxString currPath;
1240         if ( filename.HasVolume())
1241         {
1242             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
1243         }
1244
1245         wxArrayString dirs = filename.GetDirs();
1246         size_t count = dirs.GetCount();
1247         for ( size_t i = 0; i < count; i++ )
1248         {
1249             if ( i > 0 || filename.IsAbsolute() )
1250                 currPath += wxFILE_SEP_PATH;
1251             currPath += dirs[i];
1252
1253             if (!DirExists(currPath))
1254             {
1255                 if (!wxMkdir(currPath, perm))
1256                 {
1257                     // no need to try creating further directories
1258                     return false;
1259                 }
1260             }
1261         }
1262
1263         return true;
1264
1265     }
1266
1267     return ::wxMkdir( dir, perm );
1268 }
1269
1270 bool wxFileName::Rmdir(int flags) const
1271 {
1272     return wxFileName::Rmdir( GetPath(), flags );
1273 }
1274
1275 bool wxFileName::Rmdir(const wxString& dir, int flags)
1276 {
1277 #ifdef __WXMSW__
1278     if ( flags & wxPATH_RMDIR_RECURSIVE )
1279     {
1280         // SHFileOperation needs double null termination string
1281         // but without separator at the end of the path
1282         wxString path(dir);
1283         if ( path.Last() == wxFILE_SEP_PATH )
1284             path.RemoveLast();
1285         path += wxT('\0');
1286
1287         SHFILEOPSTRUCT fileop;
1288         wxZeroMemory(fileop);
1289         fileop.wFunc = FO_DELETE;
1290     #if defined(__CYGWIN__) && defined(wxUSE_UNICODE)
1291         fileop.pFrom = path.wc_str();
1292     #else
1293         fileop.pFrom = path.fn_str();
1294     #endif
1295         fileop.fFlags = FOF_SILENT | FOF_NOCONFIRMATION;
1296     #ifndef __WXWINCE__
1297         // FOF_NOERRORUI is not defined in WinCE
1298         fileop.fFlags |= FOF_NOERRORUI;
1299     #endif
1300
1301         int ret = SHFileOperation(&fileop);
1302         if ( ret != 0 )
1303         {
1304             // SHFileOperation may return non-Win32 error codes, so the error
1305             // message can be incorrect
1306             wxLogApiError(wxT("SHFileOperation"), ret);
1307             return false;
1308         }
1309
1310         return true;
1311     }
1312     else if ( flags & wxPATH_RMDIR_FULL )
1313 #else // !__WXMSW__
1314     if ( flags != 0 )   // wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE
1315 #endif // !__WXMSW__
1316     {
1317         wxString path(dir);
1318         if ( path.Last() != wxFILE_SEP_PATH )
1319             path += wxFILE_SEP_PATH;
1320
1321         wxDir d(path);
1322
1323         if ( !d.IsOpened() )
1324             return false;
1325
1326         wxString filename;
1327
1328         // first delete all subdirectories
1329         bool cont = d.GetFirst(&filename, "", wxDIR_DIRS | wxDIR_HIDDEN);
1330         while ( cont )
1331         {
1332             wxFileName::Rmdir(path + filename, flags);
1333             cont = d.GetNext(&filename);
1334         }
1335
1336 #ifndef __WXMSW__
1337         if ( flags & wxPATH_RMDIR_RECURSIVE )
1338         {
1339             // delete all files too
1340             cont = d.GetFirst(&filename, "", wxDIR_FILES | wxDIR_HIDDEN);
1341             while ( cont )
1342             {
1343                 ::wxRemoveFile(path + filename);
1344                 cont = d.GetNext(&filename);
1345             }
1346         }
1347 #endif // !__WXMSW__
1348     }
1349
1350     return ::wxRmdir(dir);
1351 }
1352
1353 // ----------------------------------------------------------------------------
1354 // path normalization
1355 // ----------------------------------------------------------------------------
1356
1357 bool wxFileName::Normalize(int flags,
1358                            const wxString& cwd,
1359                            wxPathFormat format)
1360 {
1361     // deal with env vars renaming first as this may seriously change the path
1362     if ( flags & wxPATH_NORM_ENV_VARS )
1363     {
1364         wxString pathOrig = GetFullPath(format);
1365         wxString path = wxExpandEnvVars(pathOrig);
1366         if ( path != pathOrig )
1367         {
1368             Assign(path);
1369         }
1370     }
1371
1372     // the existing path components
1373     wxArrayString dirs = GetDirs();
1374
1375     // the path to prepend in front to make the path absolute
1376     wxFileName curDir;
1377
1378     format = GetFormat(format);
1379
1380     // set up the directory to use for making the path absolute later
1381     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
1382     {
1383         if ( cwd.empty() )
1384         {
1385             curDir.AssignCwd(GetVolume());
1386         }
1387         else // cwd provided
1388         {
1389             curDir.AssignDir(cwd);
1390         }
1391     }
1392
1393     // handle ~ stuff under Unix only
1394     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) && m_relative )
1395     {
1396         if ( !dirs.IsEmpty() )
1397         {
1398             wxString dir = dirs[0u];
1399             if ( !dir.empty() && dir[0u] == wxT('~') )
1400             {
1401                 // to make the path absolute use the home directory
1402                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
1403                 dirs.RemoveAt(0u);
1404             }
1405         }
1406     }
1407
1408     // transform relative path into abs one
1409     if ( curDir.IsOk() )
1410     {
1411         // this path may be relative because it doesn't have the volume name
1412         // and still have m_relative=true; in this case we shouldn't modify
1413         // our directory components but just set the current volume
1414         if ( !HasVolume() && curDir.HasVolume() )
1415         {
1416             SetVolume(curDir.GetVolume());
1417
1418             if ( !m_relative )
1419         {
1420                 // yes, it was the case - we don't need curDir then
1421                 curDir.Clear();
1422             }
1423         }
1424
1425         // finally, prepend curDir to the dirs array
1426         wxArrayString dirsNew = curDir.GetDirs();
1427         WX_PREPEND_ARRAY(dirs, dirsNew);
1428
1429         // if we used e.g. tilde expansion previously and wxGetUserHome didn't
1430         // return for some reason an absolute path, then curDir maybe not be absolute!
1431         if ( !curDir.m_relative )
1432         {
1433             // we have prepended an absolute path and thus we are now an absolute
1434             // file name too
1435             m_relative = false;
1436         }
1437         // else if (flags & wxPATH_NORM_ABSOLUTE):
1438         //   should we warn the user that we didn't manage to make the path absolute?
1439     }
1440
1441     // now deal with ".", ".." and the rest
1442     m_dirs.Empty();
1443     size_t count = dirs.GetCount();
1444     for ( size_t n = 0; n < count; n++ )
1445     {
1446         wxString dir = dirs[n];
1447
1448         if ( flags & wxPATH_NORM_DOTS )
1449         {
1450             if ( dir == wxT(".") )
1451             {
1452                 // just ignore
1453                 continue;
1454             }
1455
1456             if ( dir == wxT("..") )
1457             {
1458                 if ( m_dirs.IsEmpty() )
1459                 {
1460                     wxLogError(_("The path '%s' contains too many \"..\"!"),
1461                                GetFullPath().c_str());
1462                     return false;
1463                 }
1464
1465                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
1466                 continue;
1467             }
1468         }
1469
1470         m_dirs.Add(dir);
1471     }
1472
1473 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1474     if ( (flags & wxPATH_NORM_SHORTCUT) )
1475     {
1476         wxString filename;
1477         if (GetShortcutTarget(GetFullPath(format), filename))
1478         {
1479             m_relative = false;
1480             Assign(filename);
1481         }
1482     }
1483 #endif
1484
1485 #if defined(__WIN32__)
1486     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
1487     {
1488         Assign(GetLongPath());
1489     }
1490 #endif // Win32
1491
1492     // Change case  (this should be kept at the end of the function, to ensure
1493     // that the path doesn't change any more after we normalize its case)
1494     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
1495     {
1496         m_volume.MakeLower();
1497         m_name.MakeLower();
1498         m_ext.MakeLower();
1499
1500         // directory entries must be made lower case as well
1501         count = m_dirs.GetCount();
1502         for ( size_t i = 0; i < count; i++ )
1503         {
1504             m_dirs[i].MakeLower();
1505         }
1506     }
1507
1508     return true;
1509 }
1510
1511 #ifndef __WXWINCE__
1512 bool wxFileName::ReplaceEnvVariable(const wxString& envname,
1513                                     const wxString& replacementFmtString,
1514                                     wxPathFormat format)
1515 {
1516     // look into stringForm for the contents of the given environment variable
1517     wxString val;
1518     if (envname.empty() ||
1519         !wxGetEnv(envname, &val))
1520         return false;
1521     if (val.empty())
1522         return false;
1523
1524     wxString stringForm = GetPath(wxPATH_GET_VOLUME, format);
1525         // do not touch the file name and the extension
1526
1527     wxString replacement = wxString::Format(replacementFmtString, envname);
1528     stringForm.Replace(val, replacement);
1529
1530     // Now assign ourselves the modified path:
1531     Assign(stringForm, GetFullName(), format);
1532
1533     return true;
1534 }
1535 #endif
1536
1537 bool wxFileName::ReplaceHomeDir(wxPathFormat format)
1538 {
1539     wxString homedir = wxGetHomeDir();
1540     if (homedir.empty())
1541         return false;
1542
1543     wxString stringForm = GetPath(wxPATH_GET_VOLUME, format);
1544         // do not touch the file name and the extension
1545
1546     stringForm.Replace(homedir, "~");
1547
1548     // Now assign ourselves the modified path:
1549     Assign(stringForm, GetFullName(), format);
1550
1551     return true;
1552 }
1553
1554 // ----------------------------------------------------------------------------
1555 // get the shortcut target
1556 // ----------------------------------------------------------------------------
1557
1558 // WinCE (3) doesn't have CLSID_ShellLink, IID_IShellLink definitions.
1559 // The .lnk file is a plain text file so it should be easy to
1560 // make it work. Hint from Google Groups:
1561 // "If you open up a lnk file, you'll see a
1562 // number, followed by a pound sign (#), followed by more text. The
1563 // number is the number of characters that follows the pound sign. The
1564 // characters after the pound sign are the command line (which _can_
1565 // include arguments) to be executed. Any path (e.g. \windows\program
1566 // files\myapp.exe) that includes spaces needs to be enclosed in
1567 // quotation marks."
1568
1569 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1570 // The following lines are necessary under WinCE
1571 // #include "wx/msw/private.h"
1572 // #include <ole2.h>
1573 #include <shlobj.h>
1574 #if defined(__WXWINCE__)
1575 #include <shlguid.h>
1576 #endif
1577
1578 bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
1579                                    wxString& targetFilename,
1580                                    wxString* arguments) const
1581 {
1582     wxString path, file, ext;
1583     wxFileName::SplitPath(shortcutPath, & path, & file, & ext);
1584
1585     HRESULT hres;
1586     IShellLink* psl;
1587     bool success = false;
1588
1589     // Assume it's not a shortcut if it doesn't end with lnk
1590     if (ext.CmpNoCase(wxT("lnk"))!=0)
1591         return false;
1592
1593     // create a ShellLink object
1594     hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
1595                             IID_IShellLink, (LPVOID*) &psl);
1596
1597     if (SUCCEEDED(hres))
1598     {
1599         IPersistFile* ppf;
1600         hres = psl->QueryInterface( IID_IPersistFile, (LPVOID *) &ppf);
1601         if (SUCCEEDED(hres))
1602         {
1603             WCHAR wsz[MAX_PATH];
1604
1605             MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, shortcutPath.mb_str(), -1, wsz,
1606                                 MAX_PATH);
1607
1608             hres = ppf->Load(wsz, 0);
1609             ppf->Release();
1610
1611             if (SUCCEEDED(hres))
1612             {
1613                 wxChar buf[2048];
1614                 // Wrong prototype in early versions
1615 #if defined(__MINGW32__) && !wxCHECK_W32API_VERSION(2, 2)
1616                 psl->GetPath((CHAR*) buf, 2048, NULL, SLGP_UNCPRIORITY);
1617 #else
1618                 psl->GetPath(buf, 2048, NULL, SLGP_UNCPRIORITY);
1619 #endif
1620                 targetFilename = wxString(buf);
1621                 success = (shortcutPath != targetFilename);
1622
1623                 psl->GetArguments(buf, 2048);
1624                 wxString args(buf);
1625                 if (!args.empty() && arguments)
1626                 {
1627                     *arguments = args;
1628                 }
1629             }
1630         }
1631
1632         psl->Release();
1633     }
1634     return success;
1635 }
1636
1637 #endif // __WIN32__ && !__WXWINCE__
1638
1639
1640 // ----------------------------------------------------------------------------
1641 // absolute/relative paths
1642 // ----------------------------------------------------------------------------
1643
1644 bool wxFileName::IsAbsolute(wxPathFormat format) const
1645 {
1646     // unix paths beginning with ~ are reported as being absolute
1647     if ( format == wxPATH_UNIX )
1648     {
1649         if ( !m_dirs.IsEmpty() )
1650         {
1651             wxString dir = m_dirs[0u];
1652
1653             if (!dir.empty() && dir[0u] == wxT('~'))
1654                 return true;
1655         }
1656     }
1657
1658     // if our path doesn't start with a path separator, it's not an absolute
1659     // path
1660     if ( m_relative )
1661         return false;
1662
1663     if ( !GetVolumeSeparator(format).empty() )
1664     {
1665         // this format has volumes and an absolute path must have one, it's not
1666         // enough to have the full path to be an absolute file under Windows
1667         if ( GetVolume().empty() )
1668             return false;
1669     }
1670
1671     return true;
1672 }
1673
1674 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
1675 {
1676     wxFileName fnBase = wxFileName::DirName(pathBase, format);
1677
1678     // get cwd only once - small time saving
1679     wxString cwd = wxGetCwd();
1680     Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1681     fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1682
1683     bool withCase = IsCaseSensitive(format);
1684
1685     // we can't do anything if the files live on different volumes
1686     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
1687     {
1688         // nothing done
1689         return false;
1690     }
1691
1692     // same drive, so we don't need our volume
1693     m_volume.clear();
1694
1695     // remove common directories starting at the top
1696     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
1697                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
1698     {
1699         m_dirs.RemoveAt(0);
1700         fnBase.m_dirs.RemoveAt(0);
1701     }
1702
1703     // add as many ".." as needed
1704     size_t count = fnBase.m_dirs.GetCount();
1705     for ( size_t i = 0; i < count; i++ )
1706     {
1707         m_dirs.Insert(wxT(".."), 0u);
1708     }
1709
1710     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
1711     {
1712         // a directory made relative with respect to itself is '.' under Unix
1713         // and DOS, by definition (but we don't have to insert "./" for the
1714         // files)
1715         if ( m_dirs.IsEmpty() && IsDir() )
1716         {
1717             m_dirs.Add(wxT('.'));
1718         }
1719     }
1720
1721     m_relative = true;
1722
1723     // we were modified
1724     return true;
1725 }
1726
1727 // ----------------------------------------------------------------------------
1728 // filename kind tests
1729 // ----------------------------------------------------------------------------
1730
1731 bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
1732 {
1733     wxFileName fn1 = *this,
1734                fn2 = filepath;
1735
1736     // get cwd only once - small time saving
1737     wxString cwd = wxGetCwd();
1738     fn1.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1739     fn2.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1740
1741     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1742         return true;
1743
1744     // TODO: compare inodes for Unix, this works even when filenames are
1745     //       different but files are the same (symlinks) (VZ)
1746
1747     return false;
1748 }
1749
1750 /* static */
1751 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1752 {
1753     // only Unix filenames are truely case-sensitive
1754     return GetFormat(format) == wxPATH_UNIX;
1755 }
1756
1757 /* static */
1758 wxString wxFileName::GetForbiddenChars(wxPathFormat format)
1759 {
1760     // Inits to forbidden characters that are common to (almost) all platforms.
1761     wxString strForbiddenChars = wxT("*?");
1762
1763     // If asserts, wxPathFormat has been changed. In case of a new path format
1764     // addition, the following code might have to be updated.
1765     wxCOMPILE_TIME_ASSERT(wxPATH_MAX == 5, wxPathFormatChanged);
1766     switch ( GetFormat(format) )
1767     {
1768         default :
1769             wxFAIL_MSG( wxT("Unknown path format") );
1770             // !! Fall through !!
1771
1772         case wxPATH_UNIX:
1773             break;
1774
1775         case wxPATH_MAC:
1776             // On a Mac even names with * and ? are allowed (Tested with OS
1777             // 9.2.1 and OS X 10.2.5)
1778             strForbiddenChars = wxEmptyString;
1779             break;
1780
1781         case wxPATH_DOS:
1782             strForbiddenChars += wxT("\\/:\"<>|");
1783             break;
1784
1785         case wxPATH_VMS:
1786             break;
1787     }
1788
1789     return strForbiddenChars;
1790 }
1791
1792 /* static */
1793 wxString wxFileName::GetVolumeSeparator(wxPathFormat WXUNUSED_IN_WINCE(format))
1794 {
1795 #ifdef __WXWINCE__
1796     return wxEmptyString;
1797 #else
1798     wxString sepVol;
1799
1800     if ( (GetFormat(format) == wxPATH_DOS) ||
1801          (GetFormat(format) == wxPATH_VMS) )
1802     {
1803         sepVol = wxFILE_SEP_DSK;
1804     }
1805     //else: leave empty
1806
1807     return sepVol;
1808 #endif
1809 }
1810
1811 /* static */
1812 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1813 {
1814     wxString seps;
1815     switch ( GetFormat(format) )
1816     {
1817         case wxPATH_DOS:
1818             // accept both as native APIs do but put the native one first as
1819             // this is the one we use in GetFullPath()
1820             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1821             break;
1822
1823         default:
1824             wxFAIL_MSG( wxT("Unknown wxPATH_XXX style") );
1825             // fall through
1826
1827         case wxPATH_UNIX:
1828             seps = wxFILE_SEP_PATH_UNIX;
1829             break;
1830
1831         case wxPATH_MAC:
1832             seps = wxFILE_SEP_PATH_MAC;
1833             break;
1834
1835         case wxPATH_VMS:
1836             seps = wxFILE_SEP_PATH_VMS;
1837             break;
1838     }
1839
1840     return seps;
1841 }
1842
1843 /* static */
1844 wxString wxFileName::GetPathTerminators(wxPathFormat format)
1845 {
1846     format = GetFormat(format);
1847
1848     // under VMS the end of the path is ']', not the path separator used to
1849     // separate the components
1850     return format == wxPATH_VMS ? wxString(wxT(']')) : GetPathSeparators(format);
1851 }
1852
1853 /* static */
1854 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1855 {
1856     // wxString::Find() doesn't work as expected with NUL - it will always find
1857     // it, so test for it separately
1858     return ch != wxT('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1859 }
1860
1861 /* static */
1862 bool
1863 wxFileName::IsMSWUniqueVolumeNamePath(const wxString& path, wxPathFormat format)
1864 {
1865     // return true if the format used is the DOS/Windows one and the string begins
1866     // with a Windows unique volume name ("\\?\Volume{guid}\")
1867     return format == wxPATH_DOS &&
1868             path.length() >= wxMSWUniqueVolumePrefixLength &&
1869              path.StartsWith(wxS("\\\\?\\Volume{")) &&
1870               path[wxMSWUniqueVolumePrefixLength - 1] == wxFILE_SEP_PATH_DOS;
1871 }
1872
1873 // ----------------------------------------------------------------------------
1874 // path components manipulation
1875 // ----------------------------------------------------------------------------
1876
1877 /* static */ bool wxFileName::IsValidDirComponent(const wxString& dir)
1878 {
1879     if ( dir.empty() )
1880     {
1881         wxFAIL_MSG( wxT("empty directory passed to wxFileName::InsertDir()") );
1882
1883         return false;
1884     }
1885
1886     const size_t len = dir.length();
1887     for ( size_t n = 0; n < len; n++ )
1888     {
1889         if ( dir[n] == GetVolumeSeparator() || IsPathSeparator(dir[n]) )
1890         {
1891             wxFAIL_MSG( wxT("invalid directory component in wxFileName") );
1892
1893             return false;
1894         }
1895     }
1896
1897     return true;
1898 }
1899
1900 void wxFileName::AppendDir( const wxString& dir )
1901 {
1902     if ( IsValidDirComponent(dir) )
1903         m_dirs.Add( dir );
1904 }
1905
1906 void wxFileName::PrependDir( const wxString& dir )
1907 {
1908     InsertDir(0, dir);
1909 }
1910
1911 void wxFileName::InsertDir(size_t before, const wxString& dir)
1912 {
1913     if ( IsValidDirComponent(dir) )
1914         m_dirs.Insert(dir, before);
1915 }
1916
1917 void wxFileName::RemoveDir(size_t pos)
1918 {
1919     m_dirs.RemoveAt(pos);
1920 }
1921
1922 // ----------------------------------------------------------------------------
1923 // accessors
1924 // ----------------------------------------------------------------------------
1925
1926 void wxFileName::SetFullName(const wxString& fullname)
1927 {
1928     SplitPath(fullname, NULL /* no volume */, NULL /* no path */,
1929                         &m_name, &m_ext, &m_hasExt);
1930 }
1931
1932 wxString wxFileName::GetFullName() const
1933 {
1934     wxString fullname = m_name;
1935     if ( m_hasExt )
1936     {
1937         fullname << wxFILE_SEP_EXT << m_ext;
1938     }
1939
1940     return fullname;
1941 }
1942
1943 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1944 {
1945     format = GetFormat( format );
1946
1947     wxString fullpath;
1948
1949     // return the volume with the path as well if requested
1950     if ( flags & wxPATH_GET_VOLUME )
1951     {
1952         fullpath += wxGetVolumeString(GetVolume(), format);
1953     }
1954
1955     // the leading character
1956     switch ( format )
1957     {
1958         case wxPATH_MAC:
1959             if ( m_relative )
1960                 fullpath += wxFILE_SEP_PATH_MAC;
1961             break;
1962
1963         case wxPATH_DOS:
1964             if ( !m_relative )
1965                 fullpath += wxFILE_SEP_PATH_DOS;
1966             break;
1967
1968         default:
1969             wxFAIL_MSG( wxT("Unknown path format") );
1970             // fall through
1971
1972         case wxPATH_UNIX:
1973             if ( !m_relative )
1974             {
1975                 fullpath += wxFILE_SEP_PATH_UNIX;
1976             }
1977             break;
1978
1979         case wxPATH_VMS:
1980             // no leading character here but use this place to unset
1981             // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense
1982             // as, if I understand correctly, there should never be a dot
1983             // before the closing bracket
1984             flags &= ~wxPATH_GET_SEPARATOR;
1985     }
1986
1987     if ( m_dirs.empty() )
1988     {
1989         // there is nothing more
1990         return fullpath;
1991     }
1992
1993     // then concatenate all the path components using the path separator
1994     if ( format == wxPATH_VMS )
1995     {
1996         fullpath += wxT('[');
1997     }
1998
1999     const size_t dirCount = m_dirs.GetCount();
2000     for ( size_t i = 0; i < dirCount; i++ )
2001     {
2002         switch (format)
2003         {
2004             case wxPATH_MAC:
2005                 if ( m_dirs[i] == wxT(".") )
2006                 {
2007                     // skip appending ':', this shouldn't be done in this
2008                     // case as "::" is interpreted as ".." under Unix
2009                     continue;
2010                 }
2011
2012                 // convert back from ".." to nothing
2013                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
2014                      fullpath += m_dirs[i];
2015                 break;
2016
2017             default:
2018                 wxFAIL_MSG( wxT("Unexpected path format") );
2019                 // still fall through
2020
2021             case wxPATH_DOS:
2022             case wxPATH_UNIX:
2023                 fullpath += m_dirs[i];
2024                 break;
2025
2026             case wxPATH_VMS:
2027                 // TODO: What to do with ".." under VMS
2028
2029                 // convert back from ".." to nothing
2030                 if ( !m_dirs[i].IsSameAs(wxT("..")) )
2031                     fullpath += m_dirs[i];
2032                 break;
2033         }
2034
2035         if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
2036             fullpath += GetPathSeparator(format);
2037     }
2038
2039     if ( format == wxPATH_VMS )
2040     {
2041         fullpath += wxT(']');
2042     }
2043
2044     return fullpath;
2045 }
2046
2047 wxString wxFileName::GetFullPath( wxPathFormat format ) const
2048 {
2049     // we already have a function to get the path
2050     wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
2051                                 format);
2052
2053     // now just add the file name and extension to it
2054     fullpath += GetFullName();
2055
2056     return fullpath;
2057 }
2058
2059 // Return the short form of the path (returns identity on non-Windows platforms)
2060 wxString wxFileName::GetShortPath() const
2061 {
2062     wxString path(GetFullPath());
2063
2064 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
2065     DWORD sz = ::GetShortPathName(path.t_str(), NULL, 0);
2066     if ( sz != 0 )
2067     {
2068         wxString pathOut;
2069         if ( ::GetShortPathName
2070                (
2071                 path.t_str(),
2072                 wxStringBuffer(pathOut, sz),
2073                 sz
2074                ) != 0 )
2075         {
2076             return pathOut;
2077         }
2078     }
2079 #endif // Windows
2080
2081     return path;
2082 }
2083
2084 // Return the long form of the path (returns identity on non-Windows platforms)
2085 wxString wxFileName::GetLongPath() const
2086 {
2087     wxString pathOut,
2088              path = GetFullPath();
2089
2090 #if defined(__WIN32__) && !defined(__WXWINCE__) && !defined(__WXMICROWIN__)
2091
2092 #if wxUSE_DYNLIB_CLASS
2093     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
2094
2095     // this is MT-safe as in the worst case we're going to resolve the function
2096     // twice -- but as the result is the same in both threads, it's ok
2097     static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
2098     if ( !s_pfnGetLongPathName )
2099     {
2100         static bool s_triedToLoad = false;
2101
2102         if ( !s_triedToLoad )
2103         {
2104             s_triedToLoad = true;
2105
2106             wxDynamicLibrary dllKernel(wxT("kernel32"));
2107
2108             const wxChar* GetLongPathName = wxT("GetLongPathName")
2109 #if wxUSE_UNICODE
2110                               wxT("W");
2111 #else // ANSI
2112                               wxT("A");
2113 #endif // Unicode/ANSI
2114
2115             if ( dllKernel.HasSymbol(GetLongPathName) )
2116             {
2117                 s_pfnGetLongPathName = (GET_LONG_PATH_NAME)
2118                     dllKernel.GetSymbol(GetLongPathName);
2119             }
2120
2121             // note that kernel32.dll can be unloaded, it stays in memory
2122             // anyhow as all Win32 programs link to it and so it's safe to call
2123             // GetLongPathName() even after unloading it
2124         }
2125     }
2126
2127     if ( s_pfnGetLongPathName )
2128     {
2129         DWORD dwSize = (*s_pfnGetLongPathName)(path.t_str(), NULL, 0);
2130         if ( dwSize > 0 )
2131         {
2132             if ( (*s_pfnGetLongPathName)
2133                  (
2134                   path.t_str(),
2135                   wxStringBuffer(pathOut, dwSize),
2136                   dwSize
2137                  ) != 0 )
2138             {
2139                 return pathOut;
2140             }
2141         }
2142     }
2143 #endif // wxUSE_DYNLIB_CLASS
2144
2145     // The OS didn't support GetLongPathName, or some other error.
2146     // We need to call FindFirstFile on each component in turn.
2147
2148     WIN32_FIND_DATA findFileData;
2149     HANDLE hFind;
2150
2151     if ( HasVolume() )
2152         pathOut = GetVolume() +
2153                   GetVolumeSeparator(wxPATH_DOS) +
2154                   GetPathSeparator(wxPATH_DOS);
2155     else
2156         pathOut = wxEmptyString;
2157
2158     wxArrayString dirs = GetDirs();
2159     dirs.Add(GetFullName());
2160
2161     wxString tmpPath;
2162
2163     size_t count = dirs.GetCount();
2164     for ( size_t i = 0; i < count; i++ )
2165     {
2166         const wxString& dir = dirs[i];
2167
2168         // We're using pathOut to collect the long-name path, but using a
2169         // temporary for appending the last path component which may be
2170         // short-name
2171         tmpPath = pathOut + dir;
2172
2173         // We must not process "." or ".." here as they would be (unexpectedly)
2174         // replaced by the corresponding directory names so just leave them
2175         // alone
2176         //
2177         // And we can't pass a drive and root dir to FindFirstFile (VZ: why?)
2178         if ( tmpPath.empty() || dir == '.' || dir == ".." ||
2179                 tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
2180         {
2181             tmpPath += wxFILE_SEP_PATH;
2182             pathOut = tmpPath;
2183             continue;
2184         }
2185
2186         hFind = ::FindFirstFile(tmpPath.t_str(), &findFileData);
2187         if (hFind == INVALID_HANDLE_VALUE)
2188         {
2189             // Error: most likely reason is that path doesn't exist, so
2190             // append any unprocessed parts and return
2191             for ( i += 1; i < count; i++ )
2192                 tmpPath += wxFILE_SEP_PATH + dirs[i];
2193
2194             return tmpPath;
2195         }
2196
2197         pathOut += findFileData.cFileName;
2198         if ( (i < (count-1)) )
2199             pathOut += wxFILE_SEP_PATH;
2200
2201         ::FindClose(hFind);
2202     }
2203 #else // !Win32
2204     pathOut = path;
2205 #endif // Win32/!Win32
2206
2207     return pathOut;
2208 }
2209
2210 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
2211 {
2212     if (format == wxPATH_NATIVE)
2213     {
2214 #if defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__)
2215         format = wxPATH_DOS;
2216 #elif defined(__VMS)
2217         format = wxPATH_VMS;
2218 #else
2219         format = wxPATH_UNIX;
2220 #endif
2221     }
2222     return format;
2223 }
2224
2225 #ifdef wxHAS_FILESYSTEM_VOLUMES
2226
2227 /* static */
2228 wxString wxFileName::GetVolumeString(char drive, int flags)
2229 {
2230     wxASSERT_MSG( !(flags & ~wxPATH_GET_SEPARATOR), "invalid flag specified" );
2231
2232     wxString vol(drive);
2233     vol += wxFILE_SEP_DSK;
2234     if ( flags & wxPATH_GET_SEPARATOR )
2235         vol += wxFILE_SEP_PATH;
2236
2237     return vol;
2238 }
2239
2240 #endif // wxHAS_FILESYSTEM_VOLUMES
2241
2242 // ----------------------------------------------------------------------------
2243 // path splitting function
2244 // ----------------------------------------------------------------------------
2245
2246 /* static */
2247 void
2248 wxFileName::SplitVolume(const wxString& fullpathWithVolume,
2249                         wxString *pstrVolume,
2250                         wxString *pstrPath,
2251                         wxPathFormat format)
2252 {
2253     format = GetFormat(format);
2254
2255     wxString fullpath = fullpathWithVolume;
2256
2257     if ( IsMSWUniqueVolumeNamePath(fullpath, format) )
2258     {
2259         // special Windows unique volume names hack: transform
2260         // \\?\Volume{guid}\path into Volume{guid}:path
2261         // note: this check must be done before the check for UNC path
2262
2263         // we know the last backslash from the unique volume name is located
2264         // there from IsMSWUniqueVolumeNamePath
2265         fullpath[wxMSWUniqueVolumePrefixLength - 1] = wxFILE_SEP_DSK;
2266
2267         // paths starting with a unique volume name should always be absolute
2268         fullpath.insert(wxMSWUniqueVolumePrefixLength, 1, wxFILE_SEP_PATH_DOS);
2269
2270         // remove the leading "\\?\" part
2271         fullpath.erase(0, 4);
2272     }
2273     else if ( IsUNCPath(fullpath, format) )
2274     {
2275         // special Windows UNC paths hack: transform \\share\path into share:path
2276
2277         fullpath.erase(0, 2);
2278
2279         size_t posFirstSlash =
2280             fullpath.find_first_of(GetPathTerminators(format));
2281         if ( posFirstSlash != wxString::npos )
2282         {
2283             fullpath[posFirstSlash] = wxFILE_SEP_DSK;
2284
2285             // UNC paths are always absolute, right? (FIXME)
2286             fullpath.insert(posFirstSlash + 1, 1, wxFILE_SEP_PATH_DOS);
2287         }
2288     }
2289
2290     // We separate the volume here
2291     if ( format == wxPATH_DOS || format == wxPATH_VMS )
2292     {
2293         wxString sepVol = GetVolumeSeparator(format);
2294
2295         // we have to exclude the case of a colon in the very beginning of the
2296         // string as it can't be a volume separator (nor can this be a valid
2297         // DOS file name at all but we'll leave dealing with this to our caller)
2298         size_t posFirstColon = fullpath.find_first_of(sepVol);
2299         if ( posFirstColon && posFirstColon != wxString::npos )
2300         {
2301             if ( pstrVolume )
2302             {
2303                 *pstrVolume = fullpath.Left(posFirstColon);
2304             }
2305
2306             // remove the volume name and the separator from the full path
2307             fullpath.erase(0, posFirstColon + sepVol.length());
2308         }
2309     }
2310
2311     if ( pstrPath )
2312         *pstrPath = fullpath;
2313 }
2314
2315 /* static */
2316 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
2317                            wxString *pstrVolume,
2318                            wxString *pstrPath,
2319                            wxString *pstrName,
2320                            wxString *pstrExt,
2321                            bool *hasExt,
2322                            wxPathFormat format)
2323 {
2324     format = GetFormat(format);
2325
2326     wxString fullpath;
2327     SplitVolume(fullpathWithVolume, pstrVolume, &fullpath, format);
2328
2329     // find the positions of the last dot and last path separator in the path
2330     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
2331     size_t posLastSlash = fullpath.find_last_of(GetPathTerminators(format));
2332
2333     // check whether this dot occurs at the very beginning of a path component
2334     if ( (posLastDot != wxString::npos) &&
2335          (posLastDot == 0 ||
2336             IsPathSeparator(fullpath[posLastDot - 1]) ||
2337             (format == wxPATH_VMS && fullpath[posLastDot - 1] == wxT(']'))) )
2338     {
2339         // dot may be (and commonly -- at least under Unix -- is) the first
2340         // character of the filename, don't treat the entire filename as
2341         // extension in this case
2342         posLastDot = wxString::npos;
2343     }
2344
2345     // if we do have a dot and a slash, check that the dot is in the name part
2346     if ( (posLastDot != wxString::npos) &&
2347          (posLastSlash != wxString::npos) &&
2348          (posLastDot < posLastSlash) )
2349     {
2350         // the dot is part of the path, not the start of the extension
2351         posLastDot = wxString::npos;
2352     }
2353
2354     // now fill in the variables provided by user
2355     if ( pstrPath )
2356     {
2357         if ( posLastSlash == wxString::npos )
2358         {
2359             // no path at all
2360             pstrPath->Empty();
2361         }
2362         else
2363         {
2364             // take everything up to the path separator but take care to make
2365             // the path equal to something like '/', not empty, for the files
2366             // immediately under root directory
2367             size_t len = posLastSlash;
2368
2369             // this rule does not apply to mac since we do not start with colons (sep)
2370             // except for relative paths
2371             if ( !len && format != wxPATH_MAC)
2372                 len++;
2373
2374             *pstrPath = fullpath.Left(len);
2375
2376             // special VMS hack: remove the initial bracket
2377             if ( format == wxPATH_VMS )
2378             {
2379                 if ( (*pstrPath)[0u] == wxT('[') )
2380                     pstrPath->erase(0, 1);
2381             }
2382         }
2383     }
2384
2385     if ( pstrName )
2386     {
2387         // take all characters starting from the one after the last slash and
2388         // up to, but excluding, the last dot
2389         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
2390         size_t count;
2391         if ( posLastDot == wxString::npos )
2392         {
2393             // take all until the end
2394             count = wxString::npos;
2395         }
2396         else if ( posLastSlash == wxString::npos )
2397         {
2398             count = posLastDot;
2399         }
2400         else // have both dot and slash
2401         {
2402             count = posLastDot - posLastSlash - 1;
2403         }
2404
2405         *pstrName = fullpath.Mid(nStart, count);
2406     }
2407
2408     // finally deal with the extension here: we have an added complication that
2409     // extension may be empty (but present) as in "foo." where trailing dot
2410     // indicates the empty extension at the end -- and hence we must remember
2411     // that we have it independently of pstrExt
2412     if ( posLastDot == wxString::npos )
2413     {
2414         // no extension
2415         if ( pstrExt )
2416             pstrExt->clear();
2417         if ( hasExt )
2418             *hasExt = false;
2419     }
2420     else
2421     {
2422         // take everything after the dot
2423         if ( pstrExt )
2424             *pstrExt = fullpath.Mid(posLastDot + 1);
2425         if ( hasExt )
2426             *hasExt = true;
2427     }
2428 }
2429
2430 /* static */
2431 void wxFileName::SplitPath(const wxString& fullpath,
2432                            wxString *path,
2433                            wxString *name,
2434                            wxString *ext,
2435                            wxPathFormat format)
2436 {
2437     wxString volume;
2438     SplitPath(fullpath, &volume, path, name, ext, format);
2439
2440     if ( path )
2441     {
2442         path->Prepend(wxGetVolumeString(volume, format));
2443     }
2444 }
2445
2446 /* static */
2447 wxString wxFileName::StripExtension(const wxString& fullpath)
2448 {
2449     wxFileName fn(fullpath);
2450     fn.SetExt("");
2451     return fn.GetFullPath();
2452 }
2453
2454 // ----------------------------------------------------------------------------
2455 // time functions
2456 // ----------------------------------------------------------------------------
2457
2458 #if wxUSE_DATETIME
2459
2460 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
2461                           const wxDateTime *dtMod,
2462                           const wxDateTime *dtCreate) const
2463 {
2464 #if defined(__WIN32__)
2465     FILETIME ftAccess, ftCreate, ftWrite;
2466
2467     if ( dtCreate )
2468         ConvertWxToFileTime(&ftCreate, *dtCreate);
2469     if ( dtAccess )
2470         ConvertWxToFileTime(&ftAccess, *dtAccess);
2471     if ( dtMod )
2472         ConvertWxToFileTime(&ftWrite, *dtMod);
2473
2474     wxString path;
2475     int flags;
2476     if ( IsDir() )
2477     {
2478         if ( wxGetOsVersion() == wxOS_WINDOWS_9X )
2479         {
2480             wxLogError(_("Setting directory access times is not supported "
2481                          "under this OS version"));
2482             return false;
2483         }
2484
2485         path = GetPath();
2486         flags = FILE_FLAG_BACKUP_SEMANTICS;
2487     }
2488     else // file
2489     {
2490         path = GetFullPath();
2491         flags = 0;
2492     }
2493
2494     wxFileHandle fh(path, wxFileHandle::WriteAttr, flags);
2495     if ( fh.IsOk() )
2496     {
2497         if ( ::SetFileTime(fh,
2498                            dtCreate ? &ftCreate : NULL,
2499                            dtAccess ? &ftAccess : NULL,
2500                            dtMod ? &ftWrite : NULL) )
2501         {
2502             return true;
2503         }
2504     }
2505 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
2506     wxUnusedVar(dtCreate);
2507
2508     if ( !dtAccess && !dtMod )
2509     {
2510         // can't modify the creation time anyhow, don't try
2511         return true;
2512     }
2513
2514     // if dtAccess or dtMod is not specified, use the other one (which must be
2515     // non NULL because of the test above) for both times
2516     utimbuf utm;
2517     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
2518     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
2519     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
2520     {
2521         return true;
2522     }
2523 #else // other platform
2524     wxUnusedVar(dtAccess);
2525     wxUnusedVar(dtMod);
2526     wxUnusedVar(dtCreate);
2527 #endif // platforms
2528
2529     wxLogSysError(_("Failed to modify file times for '%s'"),
2530                   GetFullPath().c_str());
2531
2532     return false;
2533 }
2534
2535 bool wxFileName::Touch() const
2536 {
2537 #if defined(__UNIX_LIKE__)
2538     // under Unix touching file is simple: just pass NULL to utime()
2539     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
2540     {
2541         return true;
2542     }
2543
2544     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
2545
2546     return false;
2547 #else // other platform
2548     wxDateTime dtNow = wxDateTime::Now();
2549
2550     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
2551 #endif // platforms
2552 }
2553
2554 bool wxFileName::GetTimes(wxDateTime *dtAccess,
2555                           wxDateTime *dtMod,
2556                           wxDateTime *dtCreate) const
2557 {
2558 #if defined(__WIN32__)
2559     // we must use different methods for the files and directories under
2560     // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
2561     // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
2562     // not 9x
2563     bool ok;
2564     FILETIME ftAccess, ftCreate, ftWrite;
2565     if ( IsDir() )
2566     {
2567         // implemented in msw/dir.cpp
2568         extern bool wxGetDirectoryTimes(const wxString& dirname,
2569                                         FILETIME *, FILETIME *, FILETIME *);
2570
2571         // we should pass the path without the trailing separator to
2572         // wxGetDirectoryTimes()
2573         ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
2574                                  &ftAccess, &ftCreate, &ftWrite);
2575     }
2576     else // file
2577     {
2578         wxFileHandle fh(GetFullPath(), wxFileHandle::ReadAttr);
2579         if ( fh.IsOk() )
2580         {
2581             ok = ::GetFileTime(fh,
2582                                dtCreate ? &ftCreate : NULL,
2583                                dtAccess ? &ftAccess : NULL,
2584                                dtMod ? &ftWrite : NULL) != 0;
2585         }
2586         else
2587         {
2588             ok = false;
2589         }
2590     }
2591
2592     if ( ok )
2593     {
2594         if ( dtCreate )
2595             ConvertFileTimeToWx(dtCreate, ftCreate);
2596         if ( dtAccess )
2597             ConvertFileTimeToWx(dtAccess, ftAccess);
2598         if ( dtMod )
2599             ConvertFileTimeToWx(dtMod, ftWrite);
2600
2601         return true;
2602     }
2603 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
2604     // no need to test for IsDir() here
2605     wxStructStat stBuf;
2606     if ( wxStat( GetFullPath(), &stBuf) == 0 )
2607     {
2608         if ( dtAccess )
2609             dtAccess->Set(stBuf.st_atime);
2610         if ( dtMod )
2611             dtMod->Set(stBuf.st_mtime);
2612         if ( dtCreate )
2613             dtCreate->Set(stBuf.st_ctime);
2614
2615         return true;
2616     }
2617 #else // other platform
2618     wxUnusedVar(dtAccess);
2619     wxUnusedVar(dtMod);
2620     wxUnusedVar(dtCreate);
2621 #endif // platforms
2622
2623     wxLogSysError(_("Failed to retrieve file times for '%s'"),
2624                   GetFullPath().c_str());
2625
2626     return false;
2627 }
2628
2629 #endif // wxUSE_DATETIME
2630
2631
2632 // ----------------------------------------------------------------------------
2633 // file size functions
2634 // ----------------------------------------------------------------------------
2635
2636 #if wxUSE_LONGLONG
2637
2638 /* static */
2639 wxULongLong wxFileName::GetSize(const wxString &filename)
2640 {
2641     if (!wxFileExists(filename))
2642         return wxInvalidSize;
2643
2644 #if defined(__WXPALMOS__)
2645     // TODO
2646     return wxInvalidSize;
2647 #elif defined(__WIN32__)
2648     wxFileHandle f(filename, wxFileHandle::ReadAttr);
2649     if (!f.IsOk())
2650         return wxInvalidSize;
2651
2652     DWORD lpFileSizeHigh;
2653     DWORD ret = GetFileSize(f, &lpFileSizeHigh);
2654     if ( ret == INVALID_FILE_SIZE && ::GetLastError() != NO_ERROR )
2655         return wxInvalidSize;
2656
2657     return wxULongLong(lpFileSizeHigh, ret);
2658 #else // ! __WIN32__
2659     wxStructStat st;
2660     if (wxStat( filename, &st) != 0)
2661         return wxInvalidSize;
2662     return wxULongLong(st.st_size);
2663 #endif
2664 }
2665
2666 /* static */
2667 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
2668                                           const wxString &nullsize,
2669                                           int precision,
2670                                           wxSizeConvention conv)
2671 {
2672     // deal with trivial case first
2673     if ( bs == 0 || bs == wxInvalidSize )
2674         return nullsize;
2675
2676     // depending on the convention used the multiplier may be either 1000 or
2677     // 1024 and the binary infix may be empty (for "KB") or "i" (for "KiB")
2678     double multiplier = 1024.;
2679     wxString biInfix;
2680
2681     switch ( conv )
2682     {
2683         case wxSIZE_CONV_TRADITIONAL:
2684             // nothing to do, this corresponds to the default values of both
2685             // the multiplier and infix string
2686             break;
2687
2688         case wxSIZE_CONV_IEC:
2689             biInfix = "i";
2690             break;
2691
2692         case wxSIZE_CONV_SI:
2693             multiplier = 1000;
2694             break;
2695     }
2696
2697     const double kiloByteSize = multiplier;
2698     const double megaByteSize = multiplier * kiloByteSize;
2699     const double gigaByteSize = multiplier * megaByteSize;
2700     const double teraByteSize = multiplier * gigaByteSize;
2701
2702     const double bytesize = bs.ToDouble();
2703
2704     wxString result;
2705     if ( bytesize < kiloByteSize )
2706         result.Printf("%s B", bs.ToString());
2707     else if ( bytesize < megaByteSize )
2708         result.Printf("%.*f K%sB", precision, bytesize/kiloByteSize, biInfix);
2709     else if (bytesize < gigaByteSize)
2710         result.Printf("%.*f M%sB", precision, bytesize/megaByteSize, biInfix);
2711     else if (bytesize < teraByteSize)
2712         result.Printf("%.*f G%sB", precision, bytesize/gigaByteSize, biInfix);
2713     else
2714         result.Printf("%.*f T%sB", precision, bytesize/teraByteSize, biInfix);
2715
2716     return result;
2717 }
2718
2719 wxULongLong wxFileName::GetSize() const
2720 {
2721     return GetSize(GetFullPath());
2722 }
2723
2724 wxString wxFileName::GetHumanReadableSize(const wxString& failmsg,
2725                                           int precision,
2726                                           wxSizeConvention conv) const
2727 {
2728     return GetHumanReadableSize(GetSize(), failmsg, precision, conv);
2729 }
2730
2731 #endif // wxUSE_LONGLONG
2732
2733 // ----------------------------------------------------------------------------
2734 // Mac-specific functions
2735 // ----------------------------------------------------------------------------
2736
2737 #if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
2738
2739 namespace
2740 {
2741
2742 class MacDefaultExtensionRecord
2743 {
2744 public:
2745     MacDefaultExtensionRecord()
2746     {
2747         m_type =
2748         m_creator = 0 ;
2749     }
2750
2751     // default copy ctor, assignment operator and dtor are ok
2752
2753     MacDefaultExtensionRecord(const wxString& ext, OSType type, OSType creator)
2754         : m_ext(ext)
2755     {
2756         m_type = type;
2757         m_creator = creator;
2758     }
2759
2760     wxString m_ext;
2761     OSType m_type;
2762     OSType m_creator;
2763 };
2764
2765 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray);
2766
2767 bool gMacDefaultExtensionsInited = false;
2768
2769 #include "wx/arrimpl.cpp"
2770
2771 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray);
2772
2773 MacDefaultExtensionArray gMacDefaultExtensions;
2774
2775 // load the default extensions
2776 const MacDefaultExtensionRecord gDefaults[] =
2777 {
2778     MacDefaultExtensionRecord( "txt", 'TEXT', 'ttxt' ),
2779     MacDefaultExtensionRecord( "tif", 'TIFF', '****' ),
2780     MacDefaultExtensionRecord( "jpg", 'JPEG', '****' ),
2781 };
2782
2783 void MacEnsureDefaultExtensionsLoaded()
2784 {
2785     if ( !gMacDefaultExtensionsInited )
2786     {
2787         // we could load the pc exchange prefs here too
2788         for ( size_t i = 0 ; i < WXSIZEOF( gDefaults ) ; ++i )
2789         {
2790             gMacDefaultExtensions.Add( gDefaults[i] ) ;
2791         }
2792         gMacDefaultExtensionsInited = true;
2793     }
2794 }
2795
2796 } // anonymous namespace
2797
2798 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
2799 {
2800     FSRef fsRef ;
2801     FSCatalogInfo catInfo;
2802     FileInfo *finfo ;
2803
2804     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2805     {
2806         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2807         {
2808             finfo = (FileInfo*)&catInfo.finderInfo;
2809             finfo->fileType = type ;
2810             finfo->fileCreator = creator ;
2811             FSSetCatalogInfo( &fsRef, kFSCatInfoFinderInfo, &catInfo ) ;
2812             return true ;
2813         }
2814     }
2815     return false ;
2816 }
2817
2818 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) const
2819 {
2820     FSRef fsRef ;
2821     FSCatalogInfo catInfo;
2822     FileInfo *finfo ;
2823
2824     if ( wxMacPathToFSRef( GetFullPath() , &fsRef ) == noErr )
2825     {
2826         if ( FSGetCatalogInfo (&fsRef, kFSCatInfoFinderInfo, &catInfo, NULL, NULL, NULL) == noErr )
2827         {
2828             finfo = (FileInfo*)&catInfo.finderInfo;
2829             *type = finfo->fileType ;
2830             *creator = finfo->fileCreator ;
2831             return true ;
2832         }
2833     }
2834     return false ;
2835 }
2836
2837 bool wxFileName::MacSetDefaultTypeAndCreator()
2838 {
2839     wxUint32 type , creator ;
2840     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
2841       &creator ) )
2842     {
2843         return MacSetTypeAndCreator( type , creator ) ;
2844     }
2845     return false;
2846 }
2847
2848 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
2849 {
2850   MacEnsureDefaultExtensionsLoaded() ;
2851   wxString extl = ext.Lower() ;
2852   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
2853   {
2854     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
2855     {
2856       *type = gMacDefaultExtensions.Item(i).m_type ;
2857       *creator = gMacDefaultExtensions.Item(i).m_creator ;
2858       return true ;
2859     }
2860   }
2861   return false ;
2862 }
2863
2864 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
2865 {
2866   MacEnsureDefaultExtensionsLoaded();
2867   MacDefaultExtensionRecord rec(ext.Lower(), type, creator);
2868   gMacDefaultExtensions.Add( rec );
2869 }
2870
2871 #endif // defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON