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 license
  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
  26
  27    wxPATH_MAC:  Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
  28                 names have the form
  29                     volume:dir1:...:dirN:filename
  30                 and the relative file names are either
  31                     :dir1:...:dirN:filename
  32                 or just
  33                     filename
  34                 (although :filename works as well).
  35                 Since the volume is just part of the file path, it is not
  36                 treated like a separate entity as it is done under DOS and
  37                 VMS, it is just treated as another dir.
  38
  39    wxPATH_VMS:  VMS native format, absolute file names have the form
  40                     <device>:[dir1.dir2.dir3]file.txt
  41                 or
  42                     <device>:[000000.dir1.dir2.dir3]file.txt
  43
  44                 the <device> is the physical device (i.e. disk). 000000 is the
  45                 root directory on the device which can be omitted.
  46
  47                 Note that VMS uses different separators unlike Unix:
  48                  : always after the device. If the path does not contain : than
  49                    the default (the device of the current directory) is assumed.
  50                  [ start of directory specyfication
  51                  . separator between directory and subdirectory
  52                  ] between directory and file
  53  */
  54
  55 // ============================================================================
  56 // declarations
  57 // ============================================================================
  58
  59 // ----------------------------------------------------------------------------
  60 // headers
  61 // ----------------------------------------------------------------------------
  62
  63 #ifdef __GNUG__
  64 #pragma implementation "filename.h"
  65 #endif
  66
  67 // For compilers that support precompilation, includes "wx.h".
  68 #include "wx/wxprec.h"
  69
  70 #ifdef __BORLANDC__
  71 #pragma hdrstop
  72 #endif
  73
  74 #ifndef WX_PRECOMP
  75 #include "wx/intl.h"
  76 #include "wx/log.h"
  77 #include "wx/file.h"
  78 #endif
  79
  80 #include "wx/filename.h"
  81 #include "wx/tokenzr.h"
  82 #include "wx/config.h"          // for wxExpandEnvVars
  83 #include "wx/utils.h"
  84 #include "wx/file.h"
  85 //#include "wx/dynlib.h"        // see GetLongPath below, code disabled.
  86
  87 // For GetShort/LongPathName
  88 #ifdef __WIN32__
  89 #include <windows.h>
  90 #include "wx/msw/winundef.h"
  91 #endif
  92
  93 // utime() is POSIX so should normally be available on all Unices
  94 #ifdef __UNIX_LIKE__
  95 #include <sys/types.h>
  96 #include <utime.h>
  97 #include <sys/stat.h>
  98 #include <unistd.h>
  99 #endif
 100
 101 #ifdef __DJGPP__
 102 #include <unistd.h>
 103 #endif
 104
 105 #ifdef __MWERKS__
 106 #include <stat.h>
 107 #include <unistd.h>
 108 #include <unix.h>
 109 #endif
 110
 111 #ifdef __WATCOMC__
 112 #include <io.h>
 113 #include <sys/utime.h>
 114 #include <sys/stat.h>
 115 #endif
 116
 117 #ifdef __VISAGECPP__
 118 #ifndef MAX_PATH
 119 #define MAX_PATH 256
 120 #endif
 121 #endif
 122
 123 // ----------------------------------------------------------------------------
 124 // private classes
 125 // ----------------------------------------------------------------------------
 126
 127 // small helper class which opens and closes the file - we use it just to get
 128 // a file handle for the given file name to pass it to some Win32 API function
 129 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 130
 131 class wxFileHandle
 132 {
 133 public:
 134     wxFileHandle(const wxString& filename)
 135     {
 136         m_hFile = ::CreateFile
 137                     (
 138                      filename,          // name
 139                      GENERIC_READ,      // access mask
 140                      0,                 // no sharing
 141                      NULL,              // no secutity attr
 142                      OPEN_EXISTING,     // creation disposition
 143                      0,                 // no flags
 144                      NULL               // no template file
 145                     );
 146
 147         if ( m_hFile == INVALID_HANDLE_VALUE )
 148         {
 149             wxLogSysError(_("Failed to open '%s' for reading"),
 150                           filename.c_str());
 151         }
 152     }
 153
 154     ~wxFileHandle()
 155     {
 156         if ( m_hFile != INVALID_HANDLE_VALUE )
 157         {
 158             if ( !::CloseHandle(m_hFile) )
 159             {
 160                 wxLogSysError(_("Failed to close file handle"));
 161             }
 162         }
 163     }
 164
 165     // return TRUE only if the file could be opened successfully
 166     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 167
 168     // get the handle
 169     operator HANDLE() const { return m_hFile; }
 170
 171 private:
 172     HANDLE m_hFile;
 173 };
 174
 175 #endif // __WIN32__
 176
 177 // ----------------------------------------------------------------------------
 178 // private functions
 179 // ----------------------------------------------------------------------------
 180
 181 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 182
 183 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 184 // the number of 100-nanosecond intervals since January 1, 1601.
 185
 186 // the number of milliseconds between the Unix Epoch (January 1, 1970) and the
 187 // FILETIME reference point (January 1, 1601)
 188 static const wxLongLong FILETIME_EPOCH_OFFSET = wxLongLong(0xa97, 0x30b66800);
 189
 190 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 191 {
 192     wxLongLong ll(ft.dwHighDateTime, ft.dwLowDateTime);
 193
 194     // convert 100ns to ms
 195     ll /= 10000;
 196
 197     // move it to our Epoch
 198     ll -= FILETIME_EPOCH_OFFSET;
 199
 200     *dt = wxDateTime(ll);
 201 }
 202
 203 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 204 {
 205     // do the reverse of ConvertFileTimeToWx()
 206     wxLongLong ll = dt.GetValue();
 207     ll *= 10000;
 208     ll += FILETIME_EPOCH_OFFSET;
 209
 210     ft->dwHighDateTime = ll.GetHi();
 211     ft->dwLowDateTime = ll.GetLo();
 212 }
 213
 214 #endif // __WIN32__
 215
 216 // ============================================================================
 217 // implementation
 218 // ============================================================================
 219
 220 // ----------------------------------------------------------------------------
 221 // wxFileName construction
 222 // ----------------------------------------------------------------------------
 223
 224 void wxFileName::Assign( const wxFileName &filepath )
 225 {
 226     m_volume = filepath.GetVolume();
 227     m_dirs = filepath.GetDirs();
 228     m_name = filepath.GetName();
 229     m_ext = filepath.GetExt();
 230     m_relative = filepath.IsRelative();
 231 }
 232
 233 void wxFileName::Assign(const wxString& volume,
 234                         const wxString& path,
 235                         const wxString& name,
 236                         const wxString& ext,
 237                         wxPathFormat format )
 238 {
 239     SetPath( path, format );
 240
 241     m_volume = volume;
 242     m_ext = ext;
 243     m_name = name;
 244 }
 245
 246 void wxFileName::SetPath( const wxString &path, wxPathFormat format )
 247 {
 248     wxPathFormat my_format = GetFormat( format );
 249     wxString my_path = path;
 250
 251     m_dirs.Clear();
 252
 253     if (!my_path.empty())
 254     {
 255         // 1) Determine if the path is relative or absolute.
 256
 257         switch (my_format)
 258         {
 259             case wxPATH_MAC:
 260                 m_relative = ( my_path[0u] == wxT(':') );
 261                 // We then remove a leading ":". The reason is in our
 262                 // storage form for relative paths:
 263                 // ":dir:file.txt" actually means "./dir/file.txt" in
 264                 // DOS notation and should get stored as
 265                 // (relative) (dir) (file.txt)
 266                 // "::dir:file.txt" actually means "../dir/file.txt"
 267                 // stored as (relative) (..) (dir) (file.txt)
 268                 // This is important only for the Mac as an empty dir
 269                 // actually means <UP>, whereas under DOS, double
 270                 // slashes can be ignored: "\\\\" is the same as "\\".
 271                 if (m_relative)
 272                     my_path.Remove( 0, 1 );
 273                 break;
 274             case wxPATH_VMS:
 275                 // TODO: what is the relative path format here?
 276                 m_relative = FALSE;
 277                 break;
 278             case wxPATH_UNIX:
 279                 m_relative = ( my_path[0u] != wxT('/') );
 280                 break;
 281             case wxPATH_DOS:
 282                 m_relative = ( (my_path[0u] != wxT('/')) && (my_path[0u] != wxT('\\')) );
 283                 break;
 284             default:
 285                 wxFAIL_MSG( wxT("error") );
 286                 break;
 287         }
 288
 289         // 2) Break up the path into its members. If the original path
 290         //    was just "/" or "\\", m_dirs will be empty. We know from
 291         //    the m_relative field, if this means "nothing" or "root dir".
 292
 293         wxStringTokenizer tn( my_path, GetPathSeparators(my_format) );
 294
 295         while ( tn.HasMoreTokens() )
 296         {
 297             wxString token = tn.GetNextToken();
 298
 299             // Remove empty token under DOS and Unix, interpret them
 300             // as .. under Mac.
 301             if (token.empty())
 302             {
 303                 if (my_format == wxPATH_MAC)
 304                     m_dirs.Add( wxT("..") );
 305                 // else ignore
 306             }
 307             else
 308             {
 309                m_dirs.Add( token );
 310             }
 311         }
 312     }
 313     else
 314     {
 315         m_relative = TRUE;
 316     }
 317 }
 318
 319 void wxFileName::Assign(const wxString& fullpath,
 320                         wxPathFormat format)
 321 {
 322     wxString volume, path, name, ext;
 323     SplitPath(fullpath, &volume, &path, &name, &ext, format);
 324
 325     Assign(volume, path, name, ext, format);
 326 }
 327
 328 void wxFileName::Assign(const wxString& fullpathOrig,
 329                         const wxString& fullname,
 330                         wxPathFormat format)
 331 {
 332     // always recognize fullpath as directory, even if it doesn't end with a
 333     // slash
 334     wxString fullpath = fullpathOrig;
 335     if ( !wxEndsWithPathSeparator(fullpath) )
 336     {
 337         fullpath += GetPathSeparators(format)[0u];
 338     }
 339
 340     wxString volume, path, name, ext;
 341
 342     // do some consistency checks in debug mode: the name should be really just
 343     // the filename and the path should be really just a path
 344 #ifdef __WXDEBUG__
 345     wxString pathDummy, nameDummy, extDummy;
 346
 347     SplitPath(fullname, &pathDummy, &name, &ext, format);
 348
 349     wxASSERT_MSG( pathDummy.empty(),
 350                   _T("the file name shouldn't contain the path") );
 351
 352     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 353
 354     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 355                   _T("the path shouldn't contain file name nor extension") );
 356
 357 #else // !__WXDEBUG__
 358     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 359     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 360 #endif // __WXDEBUG__/!__WXDEBUG__
 361
 362     Assign(volume, path, name, ext, format);
 363 }
 364
 365 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 366 {
 367     Assign(dir, _T(""), format);
 368 }
 369
 370 void wxFileName::Clear()
 371 {
 372     m_dirs.Clear();
 373
 374     m_volume =
 375     m_name =
 376     m_ext = wxEmptyString;
 377 }
 378
 379 /* static */
 380 wxFileName wxFileName::FileName(const wxString& file)
 381 {
 382     return wxFileName(file);
 383 }
 384
 385 /* static */
 386 wxFileName wxFileName::DirName(const wxString& dir)
 387 {
 388     wxFileName fn;
 389     fn.AssignDir(dir);
 390     return fn;
 391 }
 392
 393 // ----------------------------------------------------------------------------
 394 // existence tests
 395 // ----------------------------------------------------------------------------
 396
 397 bool wxFileName::FileExists()
 398 {
 399     return wxFileName::FileExists( GetFullPath() );
 400 }
 401
 402 bool wxFileName::FileExists( const wxString &file )
 403 {
 404     return ::wxFileExists( file );
 405 }
 406
 407 bool wxFileName::DirExists()
 408 {
 409     return wxFileName::DirExists( GetFullPath() );
 410 }
 411
 412 bool wxFileName::DirExists( const wxString &dir )
 413 {
 414     return ::wxDirExists( dir );
 415 }
 416
 417 // ----------------------------------------------------------------------------
 418 // CWD and HOME stuff
 419 // ----------------------------------------------------------------------------
 420
 421 void wxFileName::AssignCwd(const wxString& volume)
 422 {
 423     AssignDir(wxFileName::GetCwd(volume));
 424 }
 425
 426 /* static */
 427 wxString wxFileName::GetCwd(const wxString& volume)
 428 {
 429     // if we have the volume, we must get the current directory on this drive
 430     // and to do this we have to chdir to this volume - at least under Windows,
 431     // I don't know how to get the current drive on another volume elsewhere
 432     // (TODO)
 433     wxString cwdOld;
 434     if ( !volume.empty() )
 435     {
 436         cwdOld = wxGetCwd();
 437         SetCwd(volume + GetVolumeSeparator());
 438     }
 439
 440     wxString cwd = ::wxGetCwd();
 441
 442     if ( !volume.empty() )
 443     {
 444         SetCwd(cwdOld);
 445     }
 446
 447     return cwd;
 448 }
 449
 450 bool wxFileName::SetCwd()
 451 {
 452     return wxFileName::SetCwd( GetFullPath() );
 453 }
 454
 455 bool wxFileName::SetCwd( const wxString &cwd )
 456 {
 457     return ::wxSetWorkingDirectory( cwd );
 458 }
 459
 460 void wxFileName::AssignHomeDir()
 461 {
 462     AssignDir(wxFileName::GetHomeDir());
 463 }
 464
 465 wxString wxFileName::GetHomeDir()
 466 {
 467     return ::wxGetHomeDir();
 468 }
 469
 470 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 471 {
 472     wxString tempname = CreateTempFileName(prefix, fileTemp);
 473     if ( tempname.empty() )
 474     {
 475         // error, failed to get temp file name
 476         Clear();
 477     }
 478     else // ok
 479     {
 480         Assign(tempname);
 481     }
 482 }
 483
 484 /* static */
 485 wxString
 486 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 487 {
 488     wxString path, dir, name;
 489
 490     // use the directory specified by the prefix
 491     SplitPath(prefix, &dir, &name, NULL /* extension */);
 492
 493 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 494
 495 #ifdef __WIN32__
 496     if ( dir.empty() )
 497     {
 498         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
 499         {
 500             wxLogLastError(_T("GetTempPath"));
 501         }
 502
 503         if ( dir.empty() )
 504         {
 505             // GetTempFileName() fails if we pass it an empty string
 506             dir = _T('.');
 507         }
 508     }
 509
 510     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 511     {
 512         wxLogLastError(_T("GetTempFileName"));
 513
 514         path.clear();
 515     }
 516 #else // Win16
 517     if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
 518     {
 519         path.clear();
 520     }
 521 #endif // Win32/16
 522
 523 #elif defined(__WXPM__)
 524     // for now just create a file
 525     //
 526     // future enhancements can be to set some extended attributes for file
 527     // systems OS/2 supports that have them (HPFS, FAT32) and security
 528     // (HPFS386)
 529     static const wxChar *szMktempSuffix = wxT("XXX");
 530     path << dir << _T('/') << name << szMktempSuffix;
 531
 532     // Temporarily remove - MN
 533     #ifndef __WATCOMC__
 534         ::DosCreateDir(wxStringBuffer(path, MAX_PATH), NULL);
 535     #endif
 536
 537 #else // !Windows, !OS/2
 538     if ( dir.empty() )
 539     {
 540 #if defined( __WXMAC__ ) && !defined(__DARWIN__)
 541               dir = wxMacFindFolder(  (short) kOnSystemDisk, pTemporaryFolder, kCreateFolder ) ;
 542 #else
 543         dir = wxGetenv(_T("TMP"));
 544         if ( path.empty() )
 545         {
 546             dir = wxGetenv(_T("TEMP"));
 547         }
 548
 549         if ( dir.empty() )
 550         {
 551             // default
 552             #ifdef __DOS__
 553                 dir = _T(".");
 554             #else
 555                 dir = _T("/tmp");
 556             #endif
 557         }
 558 #endif
 559     }
 560
 561     path = dir;
 562
 563     if ( !wxEndsWithPathSeparator(dir) &&
 564             (name.empty() || !wxIsPathSeparator(name[0u])) )
 565     {
 566         path += wxFILE_SEP_PATH;
 567     }
 568
 569     path += name;
 570
 571 #if defined(HAVE_MKSTEMP)
 572     // scratch space for mkstemp()
 573     path += _T("XXXXXX");
 574
 575     // can use the cast here because the length doesn't change and the string
 576     // is not shared
 577     int fdTemp = mkstemp((char *)path.mb_str());
 578     if ( fdTemp == -1 )
 579     {
 580         // this might be not necessary as mkstemp() on most systems should have
 581         // already done it but it doesn't hurt neither...
 582         path.clear();
 583     }
 584     else // mkstemp() succeeded
 585     {
 586         // avoid leaking the fd
 587         if ( fileTemp )
 588         {
 589             fileTemp->Attach(fdTemp);
 590         }
 591         else
 592         {
 593             close(fdTemp);
 594         }
 595     }
 596 #else // !HAVE_MKSTEMP
 597
 598 #ifdef HAVE_MKTEMP
 599     // same as above
 600     path += _T("XXXXXX");
 601
 602     if ( !mktemp((char *)path.mb_str()) )
 603     {
 604         path.clear();
 605     }
 606 #else // !HAVE_MKTEMP (includes __DOS__)
 607     // generate the unique file name ourselves
 608     #ifndef __DOS__
 609     path << (unsigned int)getpid();
 610     #endif
 611
 612     wxString pathTry;
 613
 614     static const size_t numTries = 1000;
 615     for ( size_t n = 0; n < numTries; n++ )
 616     {
 617         // 3 hex digits is enough for numTries == 1000 < 4096
 618         pathTry = path + wxString::Format(_T("%.03x"), n);
 619         if ( !wxFile::Exists(pathTry) )
 620         {
 621             break;
 622         }
 623
 624         pathTry.clear();
 625     }
 626
 627     path = pathTry;
 628 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 629
 630     if ( !path.empty() )
 631     {
 632     }
 633 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 634
 635 #endif // Windows/!Windows
 636
 637     if ( path.empty() )
 638     {
 639         wxLogSysError(_("Failed to create a temporary file name"));
 640     }
 641     else if ( fileTemp && !fileTemp->IsOpened() )
 642     {
 643         // open the file - of course, there is a race condition here, this is
 644         // why we always prefer using mkstemp()...
 645         //
 646         // NB: GetTempFileName() under Windows creates the file, so using
 647         //     write_excl there would fail
 648         if ( !fileTemp->Open(path,
 649 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 650                              wxFile::write,
 651 #else
 652                              wxFile::write_excl,
 653 #endif
 654                              wxS_IRUSR | wxS_IWUSR) )
 655         {
 656             // FIXME: If !ok here should we loop and try again with another
 657             //        file name?  That is the standard recourse if open(O_EXCL)
 658             //        fails, though of course it should be protected against
 659             //        possible infinite looping too.
 660
 661             wxLogError(_("Failed to open temporary file."));
 662
 663             path.clear();
 664         }
 665     }
 666
 667     return path;
 668 }
 669
 670 // ----------------------------------------------------------------------------
 671 // directory operations
 672 // ----------------------------------------------------------------------------
 673
 674 bool wxFileName::Mkdir( int perm, bool full )
 675 {
 676     return wxFileName::Mkdir( GetFullPath(), perm, full );
 677 }
 678
 679 bool wxFileName::Mkdir( const wxString &dir, int perm, bool full )
 680 {
 681     if (full)
 682     {
 683         wxFileName filename(dir);
 684         wxArrayString dirs = filename.GetDirs();
 685         dirs.Add(filename.GetName());
 686
 687         size_t count = dirs.GetCount();
 688         size_t i;
 689         wxString currPath;
 690         int noErrors = 0;
 691         for ( i = 0; i < count; i++ )
 692         {
 693             currPath += dirs[i];
 694
 695             if (currPath.Last() == wxT(':'))
 696             {
 697                 // Can't create a root directory so continue to next dir
 698                 currPath += wxFILE_SEP_PATH;
 699                 continue;
 700             }
 701
 702             if (!DirExists(currPath))
 703                 if (!wxMkdir(currPath, perm))
 704                     noErrors ++;
 705
 706             if ( (i < (count-1)) )
 707                 currPath += wxFILE_SEP_PATH;
 708         }
 709
 710         return (noErrors == 0);
 711
 712     }
 713     else
 714         return ::wxMkdir( dir, perm );
 715 }
 716
 717 bool wxFileName::Rmdir()
 718 {
 719     return wxFileName::Rmdir( GetFullPath() );
 720 }
 721
 722 bool wxFileName::Rmdir( const wxString &dir )
 723 {
 724     return ::wxRmdir( dir );
 725 }
 726
 727 // ----------------------------------------------------------------------------
 728 // path normalization
 729 // ----------------------------------------------------------------------------
 730
 731 bool wxFileName::Normalize(wxPathNormalize flags,
 732                            const wxString& cwd,
 733                            wxPathFormat format)
 734 {
 735     // the existing path components
 736     wxArrayString dirs = GetDirs();
 737
 738     // the path to prepend in front to make the path absolute
 739     wxFileName curDir;
 740
 741     format = GetFormat(format);
 742
 743     // make the path absolute
 744     if ( (flags & wxPATH_NORM_ABSOLUTE) && m_relative )
 745     {
 746         if ( cwd.empty() )
 747         {
 748             curDir.AssignCwd(GetVolume());
 749         }
 750         else // cwd provided
 751         {
 752             curDir.AssignDir(cwd);
 753         }
 754
 755 #if 0
 756         // the path may be not absolute because it doesn't have the volume name
 757         // but in this case we shouldn't modify the directory components of it
 758         // but just set the current volume
 759         if ( !HasVolume() && curDir.HasVolume() )
 760         {
 761             SetVolume(curDir.GetVolume());
 762
 763             if ( IsAbsolute() )
 764             {
 765                 // yes, it was the case - we don't need curDir then
 766                 curDir.Clear();
 767             }
 768         }
 769 #endif
 770         m_relative = FALSE;
 771     }
 772
 773     // handle ~ stuff under Unix only
 774     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 775     {
 776         if ( !dirs.IsEmpty() )
 777         {
 778             wxString dir = dirs[0u];
 779             if ( !dir.empty() && dir[0u] == _T('~') )
 780             {
 781                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 782
 783                 dirs.RemoveAt(0u);
 784             }
 785         }
 786     }
 787
 788     // transform relative path into abs one
 789     if ( curDir.IsOk() )
 790     {
 791         wxArrayString dirsNew = curDir.GetDirs();
 792         size_t count = dirs.GetCount();
 793         for ( size_t n = 0; n < count; n++ )
 794         {
 795             dirsNew.Add(dirs[n]);
 796         }
 797
 798         dirs = dirsNew;
 799     }
 800
 801     // now deal with ".", ".." and the rest
 802     m_dirs.Empty();
 803     size_t count = dirs.GetCount();
 804     for ( size_t n = 0; n < count; n++ )
 805     {
 806         wxString dir = dirs[n];
 807
 808         if ( flags & wxPATH_NORM_DOTS )
 809         {
 810             if ( dir == wxT(".") )
 811             {
 812                 // just ignore
 813                 continue;
 814             }
 815
 816             if ( dir == wxT("..") )
 817             {
 818                 if ( m_dirs.IsEmpty() )
 819                 {
 820                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 821                                GetFullPath().c_str());
 822                     return FALSE;
 823                 }
 824
 825                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 826                 continue;
 827             }
 828         }
 829
 830         if ( flags & wxPATH_NORM_ENV_VARS )
 831         {
 832             dir = wxExpandEnvVars(dir);
 833         }
 834
 835         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 836         {
 837             dir.MakeLower();
 838         }
 839
 840         m_dirs.Add(dir);
 841     }
 842
 843     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 844     {
 845         // VZ: expand env vars here too?
 846
 847         m_name.MakeLower();
 848         m_ext.MakeLower();
 849     }
 850
 851 #if defined(__WIN32__)
 852     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 853     {
 854         Assign(GetLongPath());
 855     }
 856 #endif // Win32
 857
 858     return TRUE;
 859 }
 860
 861 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 862 {
 863     wxFileName fnBase(pathBase, format);
 864
 865     // get cwd only once - small time saving
 866     wxString cwd = wxGetCwd();
 867     Normalize(wxPATH_NORM_ALL, cwd, format);
 868     fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
 869
 870     bool withCase = IsCaseSensitive(format);
 871
 872     // we can't do anything if the files live on different volumes
 873     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 874     {
 875         // nothing done
 876         return FALSE;
 877     }
 878
 879     // same drive, so we don't need our volume
 880     m_volume.clear();
 881
 882     // remove common directories starting at the top
 883     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 884                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 885     {
 886         m_dirs.RemoveAt(0);
 887         fnBase.m_dirs.RemoveAt(0);
 888     }
 889
 890     // add as many ".." as needed
 891     size_t count = fnBase.m_dirs.GetCount();
 892     for ( size_t i = 0; i < count; i++ )
 893     {
 894         m_dirs.Insert(wxT(".."), 0u);
 895     }
 896
 897     m_relative = TRUE;
 898
 899     // we were modified
 900     return TRUE;
 901 }
 902
 903 // ----------------------------------------------------------------------------
 904 // filename kind tests
 905 // ----------------------------------------------------------------------------
 906
 907 bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
 908 {
 909     wxFileName fn1 = *this,
 910                fn2 = filepath;
 911
 912     // get cwd only once - small time saving
 913     wxString cwd = wxGetCwd();
 914     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
 915     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
 916
 917     if ( fn1.GetFullPath() == fn2.GetFullPath() )
 918         return TRUE;
 919
 920     // TODO: compare inodes for Unix, this works even when filenames are
 921     //       different but files are the same (symlinks) (VZ)
 922
 923     return FALSE;
 924 }
 925
 926 /* static */
 927 bool wxFileName::IsCaseSensitive( wxPathFormat format )
 928 {
 929     // only Unix filenames are truely case-sensitive
 930     return GetFormat(format) == wxPATH_UNIX;
 931 }
 932
 933 /* static */
 934 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
 935 {
 936     wxString sepVol;
 937
 938     if ( (GetFormat(format) == wxPATH_DOS) ||
 939          (GetFormat(format) == wxPATH_VMS) )
 940     {
 941         sepVol = wxFILE_SEP_DSK;
 942     }
 943     //else: leave empty
 944
 945     return sepVol;
 946 }
 947
 948 /* static */
 949 wxString wxFileName::GetPathSeparators(wxPathFormat format)
 950 {
 951     wxString seps;
 952     switch ( GetFormat(format) )
 953     {
 954         case wxPATH_DOS:
 955             // accept both as native APIs do but put the native one first as
 956             // this is the one we use in GetFullPath()
 957             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
 958             break;
 959
 960         default:
 961             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
 962             // fall through
 963
 964         case wxPATH_UNIX:
 965             seps = wxFILE_SEP_PATH_UNIX;
 966             break;
 967
 968         case wxPATH_MAC:
 969             seps = wxFILE_SEP_PATH_MAC;
 970             break;
 971
 972         case wxPATH_VMS:
 973             seps = wxFILE_SEP_PATH_VMS;
 974             break;
 975     }
 976
 977     return seps;
 978 }
 979
 980 /* static */
 981 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
 982 {
 983     // wxString::Find() doesn't work as expected with NUL - it will always find
 984     // it, so it is almost surely a bug if this function is called with NUL arg
 985     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
 986
 987     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
 988 }
 989
 990 bool wxFileName::IsWild( wxPathFormat format )
 991 {
 992     // FIXME: this is probably false for Mac and this is surely wrong for most
 993     //        of Unix shells (think about "[...]")
 994     (void)format;
 995     return m_name.find_first_of(_T("*?")) != wxString::npos;
 996 }
 997
 998 // ----------------------------------------------------------------------------
 999 // path components manipulation
1000 // ----------------------------------------------------------------------------
1001
1002 void wxFileName::AppendDir( const wxString &dir )
1003 {
1004     m_dirs.Add( dir );
1005 }
1006
1007 void wxFileName::PrependDir( const wxString &dir )
1008 {
1009     m_dirs.Insert( dir, 0 );
1010 }
1011
1012 void wxFileName::InsertDir( int before, const wxString &dir )
1013 {
1014     m_dirs.Insert( dir, before );
1015 }
1016
1017 void wxFileName::RemoveDir( int pos )
1018 {
1019     m_dirs.Remove( (size_t)pos );
1020 }
1021
1022 // ----------------------------------------------------------------------------
1023 // accessors
1024 // ----------------------------------------------------------------------------
1025
1026 void wxFileName::SetFullName(const wxString& fullname)
1027 {
1028     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1029 }
1030
1031 wxString wxFileName::GetFullName() const
1032 {
1033     wxString fullname = m_name;
1034     if ( !m_ext.empty() )
1035     {
1036         fullname << wxFILE_SEP_EXT << m_ext;
1037     }
1038
1039     return fullname;
1040 }
1041
1042 wxString wxFileName::GetPath( bool add_separator, wxPathFormat format ) const
1043 {
1044     format = GetFormat( format );
1045
1046     wxString fullpath;
1047
1048     // the leading character
1049     if ( format == wxPATH_MAC && m_relative )
1050     {
1051          fullpath += wxFILE_SEP_PATH_MAC;
1052     }
1053     else if ( format == wxPATH_DOS )
1054     {
1055          if (!m_relative)
1056              fullpath += wxFILE_SEP_PATH_DOS;
1057     }
1058     else if ( format == wxPATH_UNIX )
1059     {
1060          if (!m_relative)
1061              fullpath += wxFILE_SEP_PATH_UNIX;
1062     }
1063
1064     // then concatenate all the path components using the path separator
1065     size_t dirCount = m_dirs.GetCount();
1066     if ( dirCount )
1067     {
1068         if ( format == wxPATH_VMS )
1069         {
1070             fullpath += wxT('[');
1071         }
1072
1073
1074         for ( size_t i = 0; i < dirCount; i++ )
1075         {
1076             // TODO: What to do with ".." under VMS
1077
1078             switch (format)
1079             {
1080                 case wxPATH_MAC:
1081                 {
1082                     if (m_dirs[i] == wxT("."))
1083                         break;
1084                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1085                          fullpath += m_dirs[i];
1086                     fullpath += wxT(':');
1087                     break;
1088                 }
1089                 case wxPATH_DOS:
1090                 {
1091                     fullpath += m_dirs[i];
1092                     fullpath += wxT('\\');
1093                     break;
1094                 }
1095                 case wxPATH_UNIX:
1096                 {
1097                     fullpath += m_dirs[i];
1098                     fullpath += wxT('/');
1099                     break;
1100                 }
1101                 case wxPATH_VMS:
1102                 {
1103                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1104                         fullpath += m_dirs[i];
1105                     if (i == dirCount-1)
1106                         fullpath += wxT(']');
1107                     else
1108                         fullpath += wxT('.');
1109                     break;
1110                 }
1111                 default:
1112                 {
1113                     wxFAIL_MSG( wxT("error") );
1114                 }
1115             }
1116         }
1117     }
1118
1119
1120
1121     return fullpath;
1122 }
1123
1124 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1125 {
1126     format = GetFormat(format);
1127
1128     wxString fullpath;
1129
1130     // first put the volume
1131     if ( !m_volume.empty() )
1132     {
1133         {
1134             // Special Windows UNC paths hack, part 2: undo what we did in
1135             // SplitPath() and make an UNC path if we have a drive which is not a
1136             // single letter (hopefully the network shares can't be one letter only
1137             // although I didn't find any authoritative docs on this)
1138             if ( format == wxPATH_DOS && m_volume.length() > 1 )
1139             {
1140                 fullpath << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << m_volume;
1141             }
1142             else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
1143             {
1144                 fullpath << m_volume << GetVolumeSeparator(format);
1145             }
1146             // else ignore
1147         }
1148     }
1149
1150     // the leading character
1151     if ( format == wxPATH_MAC && m_relative )
1152     {
1153          fullpath += wxFILE_SEP_PATH_MAC;
1154     }
1155     else if ( format == wxPATH_DOS )
1156     {
1157          if (!m_relative)
1158              fullpath += wxFILE_SEP_PATH_DOS;
1159     }
1160     else if ( format == wxPATH_UNIX )
1161     {
1162          if (!m_relative)
1163              fullpath += wxFILE_SEP_PATH_UNIX;
1164     }
1165
1166     // then concatenate all the path components using the path separator
1167     size_t dirCount = m_dirs.GetCount();
1168     if ( dirCount )
1169     {
1170         if ( format == wxPATH_VMS )
1171         {
1172             fullpath += wxT('[');
1173         }
1174
1175
1176         for ( size_t i = 0; i < dirCount; i++ )
1177         {
1178             // TODO: What to do with ".." under VMS
1179
1180             switch (format)
1181             {
1182                 case wxPATH_MAC:
1183                 {
1184                     if (m_dirs[i] == wxT("."))
1185                         break;
1186                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1187                          fullpath += m_dirs[i];
1188                     fullpath += wxT(':');
1189                     break;
1190                 }
1191                 case wxPATH_DOS:
1192                 {
1193                     fullpath += m_dirs[i];
1194                     fullpath += wxT('\\');
1195                     break;
1196                 }
1197                 case wxPATH_UNIX:
1198                 {
1199                     fullpath += m_dirs[i];
1200                     fullpath += wxT('/');
1201                     break;
1202                 }
1203                 case wxPATH_VMS:
1204                 {
1205                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1206                         fullpath += m_dirs[i];
1207                     if (i == dirCount-1)
1208                         fullpath += wxT(']');
1209                     else
1210                         fullpath += wxT('.');
1211                     break;
1212                 }
1213                 default:
1214                 {
1215                     wxFAIL_MSG( wxT("error") );
1216                 }
1217             }
1218         }
1219     }
1220
1221     // finally add the file name and extension
1222     fullpath += GetFullName();
1223
1224     return fullpath;
1225 }
1226
1227 // Return the short form of the path (returns identity on non-Windows platforms)
1228 wxString wxFileName::GetShortPath() const
1229 {
1230 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1231     wxString path(GetFullPath());
1232     wxString pathOut;
1233     DWORD sz = ::GetShortPathName(path, NULL, 0);
1234     bool ok = sz != 0;
1235     if ( ok )
1236     {
1237         ok = ::GetShortPathName
1238                (
1239                 path,
1240                 pathOut.GetWriteBuf(sz),
1241                 sz
1242                ) != 0;
1243         pathOut.UngetWriteBuf();
1244     }
1245     if (ok)
1246         return pathOut;
1247
1248     return path;
1249 #else
1250     return GetFullPath();
1251 #endif
1252 }
1253
1254 // Return the long form of the path (returns identity on non-Windows platforms)
1255 wxString wxFileName::GetLongPath() const
1256 {
1257     wxString pathOut,
1258              path = GetFullPath();
1259
1260 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1261     bool success = FALSE;
1262
1263     // VZ: this code was disabled, why?
1264 #if 0 // wxUSE_DYNAMIC_LOADER
1265     typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1266
1267     static bool s_triedToLoad = FALSE;
1268
1269     if ( !s_triedToLoad )
1270     {
1271         s_triedToLoad = TRUE;
1272         wxDynamicLibrary dllKernel(_T("kernel32"));
1273         if ( dllKernel.IsLoaded() )
1274         {
1275             // may succeed or fail depending on the Windows version
1276             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1277 #ifdef _UNICODE
1278             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1279 #else
1280             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1281 #endif
1282
1283             if ( s_pfnGetLongPathName )
1284             {
1285                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1286                 bool ok = dwSize > 0;
1287
1288                 if ( ok )
1289                 {
1290                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1291                     ok = sz != 0;
1292                     if ( ok )
1293                     {
1294                         ok = (*s_pfnGetLongPathName)
1295                                 (
1296                                 path,
1297                                 pathOut.GetWriteBuf(sz),
1298                                 sz
1299                                 ) != 0;
1300                         pathOut.UngetWriteBuf();
1301
1302                         success = TRUE;
1303                     }
1304                 }
1305             }
1306         }
1307     }
1308     if (success)
1309         return pathOut;
1310 #endif // wxUSE_DYNAMIC_LOADER
1311
1312     if (!success)
1313     {
1314         // The OS didn't support GetLongPathName, or some other error.
1315         // We need to call FindFirstFile on each component in turn.
1316
1317         WIN32_FIND_DATA findFileData;
1318         HANDLE hFind;
1319         pathOut = wxEmptyString;
1320
1321         wxArrayString dirs = GetDirs();
1322         dirs.Add(GetFullName());
1323
1324         wxString tmpPath;
1325
1326         size_t count = dirs.GetCount();
1327         for ( size_t i = 0; i < count; i++ )
1328         {
1329             // We're using pathOut to collect the long-name path, but using a
1330             // temporary for appending the last path component which may be
1331             // short-name
1332             tmpPath = pathOut + dirs[i];
1333
1334             if ( tmpPath.empty() )
1335                 continue;
1336
1337             if ( tmpPath.Last() == wxT(':') )
1338             {
1339                 // Can't pass a drive and root dir to FindFirstFile,
1340                 // so continue to next dir
1341                 tmpPath += wxFILE_SEP_PATH;
1342                 pathOut = tmpPath;
1343                 continue;
1344             }
1345
1346             hFind = ::FindFirstFile(tmpPath, &findFileData);
1347             if (hFind == INVALID_HANDLE_VALUE)
1348             {
1349                 // Error: return immediately with the original path
1350                 return path;
1351             }
1352
1353             pathOut += findFileData.cFileName;
1354             if ( (i < (count-1)) )
1355                 pathOut += wxFILE_SEP_PATH;
1356
1357             ::FindClose(hFind);
1358         }
1359     }
1360 #else // !Win32
1361     pathOut = path;
1362 #endif // Win32/!Win32
1363
1364     return pathOut;
1365 }
1366
1367 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1368 {
1369     if (format == wxPATH_NATIVE)
1370     {
1371 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1372         format = wxPATH_DOS;
1373 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1374         format = wxPATH_MAC;
1375 #elif defined(__VMS)
1376         format = wxPATH_VMS;
1377 #else
1378         format = wxPATH_UNIX;
1379 #endif
1380     }
1381     return format;
1382 }
1383
1384 // ----------------------------------------------------------------------------
1385 // path splitting function
1386 // ----------------------------------------------------------------------------
1387
1388 /* static */
1389 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1390                            wxString *pstrVolume,
1391                            wxString *pstrPath,
1392                            wxString *pstrName,
1393                            wxString *pstrExt,
1394                            wxPathFormat format)
1395 {
1396     format = GetFormat(format);
1397
1398     wxString fullpath = fullpathWithVolume;
1399
1400     // under VMS the end of the path is ']', not the path separator used to
1401     // separate the components
1402     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1403                                             : GetPathSeparators(format);
1404
1405     // special Windows UNC paths hack: transform \\share\path into share:path
1406     if ( format == wxPATH_DOS )
1407     {
1408         if ( fullpath.length() >= 4 &&
1409                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1410                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1411         {
1412             fullpath.erase(0, 2);
1413
1414             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1415             if ( posFirstSlash != wxString::npos )
1416             {
1417                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1418
1419                 // UNC paths are always absolute, right? (FIXME)
1420                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1421             }
1422         }
1423     }
1424
1425     // We separate the volume here
1426     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1427     {
1428         wxString sepVol = GetVolumeSeparator(format);
1429
1430         size_t posFirstColon = fullpath.find_first_of(sepVol);
1431         if ( posFirstColon != wxString::npos )
1432         {
1433             if ( pstrVolume )
1434             {
1435                 *pstrVolume = fullpath.Left(posFirstColon);
1436             }
1437
1438             // remove the volume name and the separator from the full path
1439             fullpath.erase(0, posFirstColon + sepVol.length());
1440         }
1441     }
1442
1443     // find the positions of the last dot and last path separator in the path
1444     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1445     size_t posLastSlash = fullpath.find_last_of(sepPath);
1446
1447     if ( (posLastDot != wxString::npos) &&
1448             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1449     {
1450         if ( (posLastDot == 0) ||
1451              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1452         {
1453             // under Unix and VMS, dot may be (and commonly is) the first
1454             // character of the filename, don't treat the entire filename as
1455             // extension in this case
1456             posLastDot = wxString::npos;
1457         }
1458     }
1459
1460     // if we do have a dot and a slash, check that the dot is in the name part
1461     if ( (posLastDot != wxString::npos) &&
1462          (posLastSlash != wxString::npos) &&
1463          (posLastDot < posLastSlash) )
1464     {
1465         // the dot is part of the path, not the start of the extension
1466         posLastDot = wxString::npos;
1467     }
1468
1469     // now fill in the variables provided by user
1470     if ( pstrPath )
1471     {
1472         if ( posLastSlash == wxString::npos )
1473         {
1474             // no path at all
1475             pstrPath->Empty();
1476         }
1477         else
1478         {
1479             // take everything up to the path separator but take care to make
1480             // the path equal to something like '/', not empty, for the files
1481             // immediately under root directory
1482             size_t len = posLastSlash;
1483             if ( !len )
1484                 len++;
1485
1486             *pstrPath = fullpath.Left(len);
1487
1488             // special VMS hack: remove the initial bracket
1489             if ( format == wxPATH_VMS )
1490             {
1491                 if ( (*pstrPath)[0u] == _T('[') )
1492                     pstrPath->erase(0, 1);
1493             }
1494         }
1495     }
1496
1497     if ( pstrName )
1498     {
1499         // take all characters starting from the one after the last slash and
1500         // up to, but excluding, the last dot
1501         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1502         size_t count;
1503         if ( posLastDot == wxString::npos )
1504         {
1505             // take all until the end
1506             count = wxString::npos;
1507         }
1508         else if ( posLastSlash == wxString::npos )
1509         {
1510             count = posLastDot;
1511         }
1512         else // have both dot and slash
1513         {
1514             count = posLastDot - posLastSlash - 1;
1515         }
1516
1517         *pstrName = fullpath.Mid(nStart, count);
1518     }
1519
1520     if ( pstrExt )
1521     {
1522         if ( posLastDot == wxString::npos )
1523         {
1524             // no extension
1525             pstrExt->Empty();
1526         }
1527         else
1528         {
1529             // take everything after the dot
1530             *pstrExt = fullpath.Mid(posLastDot + 1);
1531         }
1532     }
1533 }
1534
1535 /* static */
1536 void wxFileName::SplitPath(const wxString& fullpath,
1537                            wxString *path,
1538                            wxString *name,
1539                            wxString *ext,
1540                            wxPathFormat format)
1541 {
1542     wxString volume;
1543     SplitPath(fullpath, &volume, path, name, ext, format);
1544
1545     if ( path && !volume.empty() )
1546     {
1547         path->Prepend(volume + GetVolumeSeparator(format));
1548     }
1549 }
1550
1551 // ----------------------------------------------------------------------------
1552 // time functions
1553 // ----------------------------------------------------------------------------
1554
1555 bool wxFileName::SetTimes(const wxDateTime *dtCreate,
1556                           const wxDateTime *dtAccess,
1557                           const wxDateTime *dtMod)
1558 {
1559 #if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1560     if ( !dtAccess && !dtMod )
1561     {
1562         // can't modify the creation time anyhow, don't try
1563         return TRUE;
1564     }
1565
1566     // if dtAccess or dtMod is not specified, use the other one (which must be
1567     // non NULL because of the test above) for both times
1568     utimbuf utm;
1569     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1570     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1571     if ( utime(GetFullPath(), &utm) == 0 )
1572     {
1573         return TRUE;
1574     }
1575 #elif defined(__WIN32__)
1576     wxFileHandle fh(GetFullPath());
1577     if ( fh.IsOk() )
1578     {
1579         FILETIME ftAccess, ftCreate, ftWrite;
1580
1581         if ( dtCreate )
1582             ConvertWxToFileTime(&ftCreate, *dtCreate);
1583         if ( dtAccess )
1584             ConvertWxToFileTime(&ftAccess, *dtAccess);
1585         if ( dtMod )
1586             ConvertWxToFileTime(&ftWrite, *dtMod);
1587
1588         if ( ::SetFileTime(fh,
1589                            dtCreate ? &ftCreate : NULL,
1590                            dtAccess ? &ftAccess : NULL,
1591                            dtMod ? &ftWrite : NULL) )
1592         {
1593             return TRUE;
1594         }
1595     }
1596 #else // other platform
1597 #endif // platforms
1598
1599     wxLogSysError(_("Failed to modify file times for '%s'"),
1600                   GetFullPath().c_str());
1601
1602     return FALSE;
1603 }
1604
1605 bool wxFileName::Touch()
1606 {
1607 #if defined(__UNIX_LIKE__)
1608     // under Unix touching file is simple: just pass NULL to utime()
1609     if ( utime(GetFullPath(), NULL) == 0 )
1610     {
1611         return TRUE;
1612     }
1613
1614     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1615
1616     return FALSE;
1617 #else // other platform
1618     wxDateTime dtNow = wxDateTime::Now();
1619
1620     return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow);
1621 #endif // platforms
1622 }
1623
1624 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1625                           wxDateTime *dtMod,
1626                           wxDateTime *dtChange) const
1627 {
1628 #if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1629     wxStructStat stBuf;
1630     if ( wxStat(GetFullPath(), &stBuf) == 0 )
1631     {
1632         if ( dtAccess )
1633             dtAccess->Set(stBuf.st_atime);
1634         if ( dtMod )
1635             dtMod->Set(stBuf.st_mtime);
1636         if ( dtChange )
1637             dtChange->Set(stBuf.st_ctime);
1638
1639         return TRUE;
1640     }
1641 #elif defined(__WIN32__)
1642     wxFileHandle fh(GetFullPath());
1643     if ( fh.IsOk() )
1644     {
1645         FILETIME ftAccess, ftCreate, ftWrite;
1646
1647         if ( ::GetFileTime(fh,
1648                            dtMod ? &ftCreate : NULL,
1649                            dtAccess ? &ftAccess : NULL,
1650                            dtChange ? &ftWrite : NULL) )
1651         {
1652             if ( dtMod )
1653                 ConvertFileTimeToWx(dtMod, ftCreate);
1654             if ( dtAccess )
1655                 ConvertFileTimeToWx(dtAccess, ftAccess);
1656             if ( dtChange )
1657                 ConvertFileTimeToWx(dtChange, ftWrite);
1658
1659             return TRUE;
1660         }
1661     }
1662 #else // other platform
1663 #endif // platforms
1664
1665     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1666                   GetFullPath().c_str());
1667
1668     return FALSE;
1669 }
1670