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"
  86
  87 // For GetShort/LongPathName
  88 #ifdef __WIN32__
  89 #include <windows.h>
  90 #include "wx/msw/winundef.h"
  91 #endif
  92
  93 #if defined(__WXMAC__)
  94   #include  "wx/mac/private.h"  // includes mac headers
  95 #endif
  96
  97 // utime() is POSIX so should normally be available on all Unices
  98 #ifdef __UNIX_LIKE__
  99 #include <sys/types.h>
 100 #include <utime.h>
 101 #include <sys/stat.h>
 102 #include <unistd.h>
 103 #endif
 104
 105 #ifdef __DJGPP__
 106 #include <unistd.h>
 107 #endif
 108
 109 #ifdef __MWERKS__
 110 #include <stat.h>
 111 #include <unistd.h>
 112 #include <unix.h>
 113 #endif
 114
 115 #ifdef __WATCOMC__
 116 #include <io.h>
 117 #include <sys/utime.h>
 118 #include <sys/stat.h>
 119 #endif
 120
 121 #ifdef __VISAGECPP__
 122 #ifndef MAX_PATH
 123 #define MAX_PATH 256
 124 #endif
 125 #endif
 126
 127 // ----------------------------------------------------------------------------
 128 // private classes
 129 // ----------------------------------------------------------------------------
 130
 131 // small helper class which opens and closes the file - we use it just to get
 132 // a file handle for the given file name to pass it to some Win32 API function
 133 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 134
 135 class wxFileHandle
 136 {
 137 public:
 138     enum OpenMode
 139     {
 140         Read,
 141         Write
 142     };
 143
 144     wxFileHandle(const wxString& filename, OpenMode mode)
 145     {
 146         m_hFile = ::CreateFile
 147                     (
 148                      filename,                      // name
 149                      mode == Read ? GENERIC_READ    // access mask
 150                                   : GENERIC_WRITE,
 151                      0,                             // no sharing
 152                      NULL,                          // no secutity attr
 153                      OPEN_EXISTING,                 // creation disposition
 154                      0,                             // no flags
 155                      NULL                           // no template file
 156                     );
 157
 158         if ( m_hFile == INVALID_HANDLE_VALUE )
 159         {
 160             wxLogSysError(_("Failed to open '%s' for %s"),
 161                           filename.c_str(),
 162                           mode == Read ? _("reading") : _("writing"));
 163         }
 164     }
 165
 166     ~wxFileHandle()
 167     {
 168         if ( m_hFile != INVALID_HANDLE_VALUE )
 169         {
 170             if ( !::CloseHandle(m_hFile) )
 171             {
 172                 wxLogSysError(_("Failed to close file handle"));
 173             }
 174         }
 175     }
 176
 177     // return TRUE only if the file could be opened successfully
 178     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 179
 180     // get the handle
 181     operator HANDLE() const { return m_hFile; }
 182
 183 private:
 184     HANDLE m_hFile;
 185 };
 186
 187 #endif // __WIN32__
 188
 189 // ----------------------------------------------------------------------------
 190 // private functions
 191 // ----------------------------------------------------------------------------
 192
 193 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 194
 195 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 196 // the number of 100-nanosecond intervals since January 1, 1601.
 197
 198 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 199 {
 200     FILETIME ftcopy = ft;
 201     FILETIME ftLocal;
 202     if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
 203     {
 204         wxLogLastError(_T("FileTimeToLocalFileTime"));
 205     }
 206
 207     SYSTEMTIME st;
 208     if ( !::FileTimeToSystemTime(&ftLocal, &st) )
 209     {
 210         wxLogLastError(_T("FileTimeToSystemTime"));
 211     }
 212
 213     dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
 214             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
 215 }
 216
 217 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 218 {
 219     SYSTEMTIME st;
 220     st.wDay = dt.GetDay();
 221     st.wMonth = dt.GetMonth() + 1;
 222     st.wYear = dt.GetYear();
 223     st.wHour = dt.GetHour();
 224     st.wMinute = dt.GetMinute();
 225     st.wSecond = dt.GetSecond();
 226     st.wMilliseconds = dt.GetMillisecond();
 227
 228     FILETIME ftLocal;
 229     if ( !::SystemTimeToFileTime(&st, &ftLocal) )
 230     {
 231         wxLogLastError(_T("SystemTimeToFileTime"));
 232     }
 233
 234     if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
 235     {
 236         wxLogLastError(_T("LocalFileTimeToFileTime"));
 237     }
 238 }
 239
 240 #endif // __WIN32__
 241
 242 // return a string with the volume par
 243 static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
 244 {
 245     wxString path;
 246
 247     if ( !volume.empty() )
 248     {
 249         format = wxFileName::GetFormat(format);
 250
 251         // Special Windows UNC paths hack, part 2: undo what we did in
 252         // SplitPath() and make an UNC path if we have a drive which is not a
 253         // single letter (hopefully the network shares can't be one letter only
 254         // although I didn't find any authoritative docs on this)
 255         if ( format == wxPATH_DOS && volume.length() > 1 )
 256         {
 257             path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 258         }
 259         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 260         {
 261             path << volume << wxFileName::GetVolumeSeparator(format);
 262         }
 263         // else ignore
 264     }
 265
 266     return path;
 267 }
 268
 269 // ============================================================================
 270 // implementation
 271 // ============================================================================
 272
 273 // ----------------------------------------------------------------------------
 274 // wxFileName construction
 275 // ----------------------------------------------------------------------------
 276
 277 void wxFileName::Assign( const wxFileName &filepath )
 278 {
 279     m_volume = filepath.GetVolume();
 280     m_dirs = filepath.GetDirs();
 281     m_name = filepath.GetName();
 282     m_ext = filepath.GetExt();
 283     m_relative = filepath.m_relative;
 284 }
 285
 286 void wxFileName::Assign(const wxString& volume,
 287                         const wxString& path,
 288                         const wxString& name,
 289                         const wxString& ext,
 290                         wxPathFormat format )
 291 {
 292     SetPath( path, format );
 293
 294     m_volume = volume;
 295     m_ext = ext;
 296     m_name = name;
 297 }
 298
 299 void wxFileName::SetPath( const wxString &path, wxPathFormat format )
 300 {
 301     m_dirs.Clear();
 302
 303     if ( !path.empty() )
 304     {
 305         wxPathFormat my_format = GetFormat( format );
 306         wxString my_path = path;
 307
 308         // 1) Determine if the path is relative or absolute.
 309         wxChar leadingChar = my_path[0u];
 310
 311         switch (my_format)
 312         {
 313             case wxPATH_MAC:
 314                 m_relative = leadingChar == wxT(':');
 315
 316                 // We then remove a leading ":". The reason is in our
 317                 // storage form for relative paths:
 318                 // ":dir:file.txt" actually means "./dir/file.txt" in
 319                 // DOS notation and should get stored as
 320                 // (relative) (dir) (file.txt)
 321                 // "::dir:file.txt" actually means "../dir/file.txt"
 322                 // stored as (relative) (..) (dir) (file.txt)
 323                 // This is important only for the Mac as an empty dir
 324                 // actually means <UP>, whereas under DOS, double
 325                 // slashes can be ignored: "\\\\" is the same as "\\".
 326                 if (m_relative)
 327                     my_path.erase( 0, 1 );
 328                 break;
 329
 330             case wxPATH_VMS:
 331                 // TODO: what is the relative path format here?
 332                 m_relative = FALSE;
 333                 break;
 334
 335             case wxPATH_UNIX:
 336                 // the paths of the form "~" or "~username" are absolute
 337                 m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
 338                 break;
 339
 340             case wxPATH_DOS:
 341                 m_relative = !IsPathSeparator(leadingChar, my_format);
 342                 break;
 343
 344             default:
 345                 wxFAIL_MSG( wxT("error") );
 346                 break;
 347         }
 348
 349         // 2) Break up the path into its members. If the original path
 350         //    was just "/" or "\\", m_dirs will be empty. We know from
 351         //    the m_relative field, if this means "nothing" or "root dir".
 352
 353         wxStringTokenizer tn( my_path, GetPathSeparators(my_format) );
 354
 355         while ( tn.HasMoreTokens() )
 356         {
 357             wxString token = tn.GetNextToken();
 358
 359             // Remove empty token under DOS and Unix, interpret them
 360             // as .. under Mac.
 361             if (token.empty())
 362             {
 363                 if (my_format == wxPATH_MAC)
 364                     m_dirs.Add( wxT("..") );
 365                 // else ignore
 366             }
 367             else
 368             {
 369                m_dirs.Add( token );
 370             }
 371         }
 372     }
 373     else // no path at all
 374     {
 375         m_relative = TRUE;
 376     }
 377 }
 378
 379 void wxFileName::Assign(const wxString& fullpath,
 380                         wxPathFormat format)
 381 {
 382     wxString volume, path, name, ext;
 383     SplitPath(fullpath, &volume, &path, &name, &ext, format);
 384
 385     Assign(volume, path, name, ext, format);
 386 }
 387
 388 void wxFileName::Assign(const wxString& fullpathOrig,
 389                         const wxString& fullname,
 390                         wxPathFormat format)
 391 {
 392     // always recognize fullpath as directory, even if it doesn't end with a
 393     // slash
 394     wxString fullpath = fullpathOrig;
 395     if ( !wxEndsWithPathSeparator(fullpath) )
 396     {
 397         fullpath += GetPathSeparator(format);
 398     }
 399
 400     wxString volume, path, name, ext;
 401
 402     // do some consistency checks in debug mode: the name should be really just
 403     // the filename and the path should be really just a path
 404 #ifdef __WXDEBUG__
 405     wxString pathDummy, nameDummy, extDummy;
 406
 407     SplitPath(fullname, &pathDummy, &name, &ext, format);
 408
 409     wxASSERT_MSG( pathDummy.empty(),
 410                   _T("the file name shouldn't contain the path") );
 411
 412     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 413
 414     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 415                   _T("the path shouldn't contain file name nor extension") );
 416
 417 #else // !__WXDEBUG__
 418     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 419     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 420 #endif // __WXDEBUG__/!__WXDEBUG__
 421
 422     Assign(volume, path, name, ext, format);
 423 }
 424
 425 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 426 {
 427     Assign(dir, _T(""), format);
 428 }
 429
 430 void wxFileName::Clear()
 431 {
 432     m_dirs.Clear();
 433
 434     m_volume =
 435     m_name =
 436     m_ext = wxEmptyString;
 437 }
 438
 439 /* static */
 440 wxFileName wxFileName::FileName(const wxString& file)
 441 {
 442     return wxFileName(file);
 443 }
 444
 445 /* static */
 446 wxFileName wxFileName::DirName(const wxString& dir)
 447 {
 448     wxFileName fn;
 449     fn.AssignDir(dir);
 450     return fn;
 451 }
 452
 453 // ----------------------------------------------------------------------------
 454 // existence tests
 455 // ----------------------------------------------------------------------------
 456
 457 bool wxFileName::FileExists()
 458 {
 459     return wxFileName::FileExists( GetFullPath() );
 460 }
 461
 462 bool wxFileName::FileExists( const wxString &file )
 463 {
 464     return ::wxFileExists( file );
 465 }
 466
 467 bool wxFileName::DirExists()
 468 {
 469     return wxFileName::DirExists( GetFullPath() );
 470 }
 471
 472 bool wxFileName::DirExists( const wxString &dir )
 473 {
 474     return ::wxDirExists( dir );
 475 }
 476
 477 // ----------------------------------------------------------------------------
 478 // CWD and HOME stuff
 479 // ----------------------------------------------------------------------------
 480
 481 void wxFileName::AssignCwd(const wxString& volume)
 482 {
 483     AssignDir(wxFileName::GetCwd(volume));
 484 }
 485
 486 /* static */
 487 wxString wxFileName::GetCwd(const wxString& volume)
 488 {
 489     // if we have the volume, we must get the current directory on this drive
 490     // and to do this we have to chdir to this volume - at least under Windows,
 491     // I don't know how to get the current drive on another volume elsewhere
 492     // (TODO)
 493     wxString cwdOld;
 494     if ( !volume.empty() )
 495     {
 496         cwdOld = wxGetCwd();
 497         SetCwd(volume + GetVolumeSeparator());
 498     }
 499
 500     wxString cwd = ::wxGetCwd();
 501
 502     if ( !volume.empty() )
 503     {
 504         SetCwd(cwdOld);
 505     }
 506
 507     return cwd;
 508 }
 509
 510 bool wxFileName::SetCwd()
 511 {
 512     return wxFileName::SetCwd( GetFullPath() );
 513 }
 514
 515 bool wxFileName::SetCwd( const wxString &cwd )
 516 {
 517     return ::wxSetWorkingDirectory( cwd );
 518 }
 519
 520 void wxFileName::AssignHomeDir()
 521 {
 522     AssignDir(wxFileName::GetHomeDir());
 523 }
 524
 525 wxString wxFileName::GetHomeDir()
 526 {
 527     return ::wxGetHomeDir();
 528 }
 529
 530 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 531 {
 532     wxString tempname = CreateTempFileName(prefix, fileTemp);
 533     if ( tempname.empty() )
 534     {
 535         // error, failed to get temp file name
 536         Clear();
 537     }
 538     else // ok
 539     {
 540         Assign(tempname);
 541     }
 542 }
 543
 544 /* static */
 545 wxString
 546 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 547 {
 548     wxString path, dir, name;
 549
 550     // use the directory specified by the prefix
 551     SplitPath(prefix, &dir, &name, NULL /* extension */);
 552
 553 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 554
 555 #ifdef __WIN32__
 556     if ( dir.empty() )
 557     {
 558         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
 559         {
 560             wxLogLastError(_T("GetTempPath"));
 561         }
 562
 563         if ( dir.empty() )
 564         {
 565             // GetTempFileName() fails if we pass it an empty string
 566             dir = _T('.');
 567         }
 568     }
 569     else // we have a dir to create the file in
 570     {
 571         // ensure we use only the back slashes as GetTempFileName(), unlike all
 572         // the other APIs, is picky and doesn't accept the forward ones
 573         dir.Replace(_T("/"), _T("\\"));
 574     }
 575
 576     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 577     {
 578         wxLogLastError(_T("GetTempFileName"));
 579
 580         path.clear();
 581     }
 582 #else // Win16
 583     if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
 584     {
 585         path.clear();
 586     }
 587 #endif // Win32/16
 588
 589 #elif defined(__WXPM__)
 590     // for now just create a file
 591     //
 592     // future enhancements can be to set some extended attributes for file
 593     // systems OS/2 supports that have them (HPFS, FAT32) and security
 594     // (HPFS386)
 595     static const wxChar *szMktempSuffix = wxT("XXX");
 596     path << dir << _T('/') << name << szMktempSuffix;
 597
 598     // Temporarily remove - MN
 599     #ifndef __WATCOMC__
 600         ::DosCreateDir(wxStringBuffer(path, MAX_PATH), NULL);
 601     #endif
 602
 603 #else // !Windows, !OS/2
 604     if ( dir.empty() )
 605     {
 606 #if defined(__WXMAC__) && !defined(__DARWIN__)
 607         dir = wxMacFindFolder(  (short) kOnSystemDisk, kTemporaryFolderType, kCreateFolder ) ;
 608 #else // !Mac
 609         dir = wxGetenv(_T("TMP"));
 610         if ( dir.empty() )
 611         {
 612             dir = wxGetenv(_T("TEMP"));
 613         }
 614
 615         if ( dir.empty() )
 616         {
 617             // default
 618             #ifdef __DOS__
 619                 dir = _T(".");
 620             #else
 621                 dir = _T("/tmp");
 622             #endif
 623         }
 624 #endif // Mac/!Mac
 625     }
 626
 627     path = dir;
 628
 629     if ( !wxEndsWithPathSeparator(dir) &&
 630             (name.empty() || !wxIsPathSeparator(name[0u])) )
 631     {
 632         path += wxFILE_SEP_PATH;
 633     }
 634
 635     path += name;
 636
 637 #if defined(HAVE_MKSTEMP)
 638     // scratch space for mkstemp()
 639     path += _T("XXXXXX");
 640
 641     // can use the cast here because the length doesn't change and the string
 642     // is not shared
 643     int fdTemp = mkstemp((char *)path.mb_str());
 644     if ( fdTemp == -1 )
 645     {
 646         // this might be not necessary as mkstemp() on most systems should have
 647         // already done it but it doesn't hurt neither...
 648         path.clear();
 649     }
 650     else // mkstemp() succeeded
 651     {
 652         // avoid leaking the fd
 653         if ( fileTemp )
 654         {
 655             fileTemp->Attach(fdTemp);
 656         }
 657         else
 658         {
 659             close(fdTemp);
 660         }
 661     }
 662 #else // !HAVE_MKSTEMP
 663
 664 #ifdef HAVE_MKTEMP
 665     // same as above
 666     path += _T("XXXXXX");
 667
 668     if ( !mktemp((char *)path.mb_str()) )
 669     {
 670         path.clear();
 671     }
 672 #else // !HAVE_MKTEMP (includes __DOS__)
 673     // generate the unique file name ourselves
 674     #ifndef __DOS__
 675     path << (unsigned int)getpid();
 676     #endif
 677
 678     wxString pathTry;
 679
 680     static const size_t numTries = 1000;
 681     for ( size_t n = 0; n < numTries; n++ )
 682     {
 683         // 3 hex digits is enough for numTries == 1000 < 4096
 684         pathTry = path + wxString::Format(_T("%.03x"), n);
 685         if ( !wxFile::Exists(pathTry) )
 686         {
 687             break;
 688         }
 689
 690         pathTry.clear();
 691     }
 692
 693     path = pathTry;
 694 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 695
 696     if ( !path.empty() )
 697     {
 698     }
 699 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 700
 701 #endif // Windows/!Windows
 702
 703     if ( path.empty() )
 704     {
 705         wxLogSysError(_("Failed to create a temporary file name"));
 706     }
 707     else if ( fileTemp && !fileTemp->IsOpened() )
 708     {
 709         // open the file - of course, there is a race condition here, this is
 710         // why we always prefer using mkstemp()...
 711         //
 712         // NB: GetTempFileName() under Windows creates the file, so using
 713         //     write_excl there would fail
 714         if ( !fileTemp->Open(path,
 715 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 716                              wxFile::write,
 717 #else
 718                              wxFile::write_excl,
 719 #endif
 720                              wxS_IRUSR | wxS_IWUSR) )
 721         {
 722             // FIXME: If !ok here should we loop and try again with another
 723             //        file name?  That is the standard recourse if open(O_EXCL)
 724             //        fails, though of course it should be protected against
 725             //        possible infinite looping too.
 726
 727             wxLogError(_("Failed to open temporary file."));
 728
 729             path.clear();
 730         }
 731     }
 732
 733     return path;
 734 }
 735
 736 // ----------------------------------------------------------------------------
 737 // directory operations
 738 // ----------------------------------------------------------------------------
 739
 740 bool wxFileName::Mkdir( int perm, int flags )
 741 {
 742     return wxFileName::Mkdir( GetFullPath(), perm, flags );
 743 }
 744
 745 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
 746 {
 747     if ( flags & wxPATH_MKDIR_FULL )
 748     {
 749         // split the path in components
 750         wxFileName filename;
 751         filename.AssignDir(dir);
 752
 753         wxString currPath;
 754         if ( filename.HasVolume())
 755         {
 756             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
 757         }
 758
 759         wxArrayString dirs = filename.GetDirs();
 760         size_t count = dirs.GetCount();
 761         for ( size_t i = 0; i < count; i++ )
 762         {
 763             if ( i > 0 || filename.IsAbsolute() )
 764                 currPath += wxFILE_SEP_PATH;
 765             currPath += dirs[i];
 766
 767             if (!DirExists(currPath))
 768             {
 769                 if (!wxMkdir(currPath, perm))
 770                 {
 771                     // no need to try creating further directories
 772                     return FALSE;
 773                 }
 774             }
 775         }
 776
 777         return TRUE;
 778
 779     }
 780
 781     return ::wxMkdir( dir, perm );
 782 }
 783
 784 bool wxFileName::Rmdir()
 785 {
 786     return wxFileName::Rmdir( GetFullPath() );
 787 }
 788
 789 bool wxFileName::Rmdir( const wxString &dir )
 790 {
 791     return ::wxRmdir( dir );
 792 }
 793
 794 // ----------------------------------------------------------------------------
 795 // path normalization
 796 // ----------------------------------------------------------------------------
 797
 798 bool wxFileName::Normalize(int flags,
 799                            const wxString& cwd,
 800                            wxPathFormat format)
 801 {
 802     // the existing path components
 803     wxArrayString dirs = GetDirs();
 804
 805     // the path to prepend in front to make the path absolute
 806     wxFileName curDir;
 807
 808     format = GetFormat(format);
 809
 810     // make the path absolute
 811     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
 812     {
 813         if ( cwd.empty() )
 814         {
 815             curDir.AssignCwd(GetVolume());
 816         }
 817         else // cwd provided
 818         {
 819             curDir.AssignDir(cwd);
 820         }
 821
 822         // the path may be not absolute because it doesn't have the volume name
 823         // but in this case we shouldn't modify the directory components of it
 824         // but just set the current volume
 825         if ( !HasVolume() && curDir.HasVolume() )
 826         {
 827             SetVolume(curDir.GetVolume());
 828
 829             if ( !m_relative )
 830             {
 831                 // yes, it was the case - we don't need curDir then
 832                 curDir.Clear();
 833             }
 834         }
 835     }
 836
 837     // handle ~ stuff under Unix only
 838     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 839     {
 840         if ( !dirs.IsEmpty() )
 841         {
 842             wxString dir = dirs[0u];
 843             if ( !dir.empty() && dir[0u] == _T('~') )
 844             {
 845                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 846
 847                 dirs.RemoveAt(0u);
 848             }
 849         }
 850     }
 851
 852     // transform relative path into abs one
 853     if ( curDir.IsOk() )
 854     {
 855         wxArrayString dirsNew = curDir.GetDirs();
 856         size_t count = dirs.GetCount();
 857         for ( size_t n = 0; n < count; n++ )
 858         {
 859             dirsNew.Add(dirs[n]);
 860         }
 861
 862         dirs = dirsNew;
 863     }
 864
 865     // now deal with ".", ".." and the rest
 866     m_dirs.Empty();
 867     size_t count = dirs.GetCount();
 868     for ( size_t n = 0; n < count; n++ )
 869     {
 870         wxString dir = dirs[n];
 871
 872         if ( flags & wxPATH_NORM_DOTS )
 873         {
 874             if ( dir == wxT(".") )
 875             {
 876                 // just ignore
 877                 continue;
 878             }
 879
 880             if ( dir == wxT("..") )
 881             {
 882                 if ( m_dirs.IsEmpty() )
 883                 {
 884                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 885                                GetFullPath().c_str());
 886                     return FALSE;
 887                 }
 888
 889                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 890                 continue;
 891             }
 892         }
 893
 894         if ( flags & wxPATH_NORM_ENV_VARS )
 895         {
 896             dir = wxExpandEnvVars(dir);
 897         }
 898
 899         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 900         {
 901             dir.MakeLower();
 902         }
 903
 904         m_dirs.Add(dir);
 905     }
 906
 907     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 908     {
 909         // VZ: expand env vars here too?
 910
 911         m_name.MakeLower();
 912         m_ext.MakeLower();
 913     }
 914
 915 #if defined(__WIN32__)
 916     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 917     {
 918         Assign(GetLongPath());
 919     }
 920 #endif // Win32
 921
 922     // we do have the path now
 923     m_relative = FALSE;
 924
 925     return TRUE;
 926 }
 927
 928 // ----------------------------------------------------------------------------
 929 // absolute/relative paths
 930 // ----------------------------------------------------------------------------
 931
 932 bool wxFileName::IsAbsolute(wxPathFormat format) const
 933 {
 934     // if our path doesn't start with a path separator, it's not an absolute
 935     // path
 936     if ( m_relative )
 937         return FALSE;
 938
 939     if ( !GetVolumeSeparator(format).empty() )
 940     {
 941         // this format has volumes and an absolute path must have one, it's not
 942         // enough to have the full path to bean absolute file under Windows
 943         if ( GetVolume().empty() )
 944             return FALSE;
 945     }
 946
 947     return TRUE;
 948 }
 949
 950 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 951 {
 952     wxFileName fnBase(pathBase, format);
 953
 954     // get cwd only once - small time saving
 955     wxString cwd = wxGetCwd();
 956     Normalize(wxPATH_NORM_ALL, cwd, format);
 957     fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
 958
 959     bool withCase = IsCaseSensitive(format);
 960
 961     // we can't do anything if the files live on different volumes
 962     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 963     {
 964         // nothing done
 965         return FALSE;
 966     }
 967
 968     // same drive, so we don't need our volume
 969     m_volume.clear();
 970
 971     // remove common directories starting at the top
 972     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 973                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 974     {
 975         m_dirs.RemoveAt(0);
 976         fnBase.m_dirs.RemoveAt(0);
 977     }
 978
 979     // add as many ".." as needed
 980     size_t count = fnBase.m_dirs.GetCount();
 981     for ( size_t i = 0; i < count; i++ )
 982     {
 983         m_dirs.Insert(wxT(".."), 0u);
 984     }
 985
 986     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
 987     {
 988         // a directory made relative with respect to itself is '.' under Unix
 989         // and DOS, by definition (but we don't have to insert "./" for the
 990         // files)
 991         if ( m_dirs.IsEmpty() && IsDir() )
 992         {
 993             m_dirs.Add(_T('.'));
 994         }
 995     }
 996
 997     m_relative = TRUE;
 998
 999     // we were modified
1000     return TRUE;
1001 }
1002
1003 // ----------------------------------------------------------------------------
1004 // filename kind tests
1005 // ----------------------------------------------------------------------------
1006
1007 bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
1008 {
1009     wxFileName fn1 = *this,
1010                fn2 = filepath;
1011
1012     // get cwd only once - small time saving
1013     wxString cwd = wxGetCwd();
1014     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
1015     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
1016
1017     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1018         return TRUE;
1019
1020     // TODO: compare inodes for Unix, this works even when filenames are
1021     //       different but files are the same (symlinks) (VZ)
1022
1023     return FALSE;
1024 }
1025
1026 /* static */
1027 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1028 {
1029     // only Unix filenames are truely case-sensitive
1030     return GetFormat(format) == wxPATH_UNIX;
1031 }
1032
1033 /* static */
1034 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
1035 {
1036     wxString sepVol;
1037
1038     if ( (GetFormat(format) == wxPATH_DOS) ||
1039          (GetFormat(format) == wxPATH_VMS) )
1040     {
1041         sepVol = wxFILE_SEP_DSK;
1042     }
1043     //else: leave empty
1044
1045     return sepVol;
1046 }
1047
1048 /* static */
1049 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1050 {
1051     wxString seps;
1052     switch ( GetFormat(format) )
1053     {
1054         case wxPATH_DOS:
1055             // accept both as native APIs do but put the native one first as
1056             // this is the one we use in GetFullPath()
1057             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1058             break;
1059
1060         default:
1061             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
1062             // fall through
1063
1064         case wxPATH_UNIX:
1065             seps = wxFILE_SEP_PATH_UNIX;
1066             break;
1067
1068         case wxPATH_MAC:
1069             seps = wxFILE_SEP_PATH_MAC;
1070             break;
1071
1072         case wxPATH_VMS:
1073             seps = wxFILE_SEP_PATH_VMS;
1074             break;
1075     }
1076
1077     return seps;
1078 }
1079
1080 /* static */
1081 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1082 {
1083     // wxString::Find() doesn't work as expected with NUL - it will always find
1084     // it, so it is almost surely a bug if this function is called with NUL arg
1085     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
1086
1087     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1088 }
1089
1090 // ----------------------------------------------------------------------------
1091 // path components manipulation
1092 // ----------------------------------------------------------------------------
1093
1094 void wxFileName::AppendDir( const wxString &dir )
1095 {
1096     m_dirs.Add( dir );
1097 }
1098
1099 void wxFileName::PrependDir( const wxString &dir )
1100 {
1101     m_dirs.Insert( dir, 0 );
1102 }
1103
1104 void wxFileName::InsertDir( int before, const wxString &dir )
1105 {
1106     m_dirs.Insert( dir, before );
1107 }
1108
1109 void wxFileName::RemoveDir( int pos )
1110 {
1111     m_dirs.Remove( (size_t)pos );
1112 }
1113
1114 // ----------------------------------------------------------------------------
1115 // accessors
1116 // ----------------------------------------------------------------------------
1117
1118 void wxFileName::SetFullName(const wxString& fullname)
1119 {
1120     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1121 }
1122
1123 wxString wxFileName::GetFullName() const
1124 {
1125     wxString fullname = m_name;
1126     if ( !m_ext.empty() )
1127     {
1128         fullname << wxFILE_SEP_EXT << m_ext;
1129     }
1130
1131     return fullname;
1132 }
1133
1134 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1135 {
1136     format = GetFormat( format );
1137
1138     wxString fullpath;
1139
1140     // return the volume with the path as well if requested
1141     if ( flags & wxPATH_GET_VOLUME )
1142     {
1143         fullpath += wxGetVolumeString(GetVolume(), format);
1144     }
1145
1146     // the leading character
1147     if ( format == wxPATH_MAC )
1148     {
1149         if ( m_relative )
1150             fullpath += wxFILE_SEP_PATH_MAC;
1151     }
1152     else if ( format == wxPATH_DOS )
1153     {
1154         if (!m_relative)
1155             fullpath += wxFILE_SEP_PATH_DOS;
1156     }
1157     else if ( format == wxPATH_UNIX )
1158     {
1159         if (!m_relative)
1160             fullpath += wxFILE_SEP_PATH_UNIX;
1161     }
1162
1163     // then concatenate all the path components using the path separator
1164     size_t dirCount = m_dirs.GetCount();
1165     if ( dirCount )
1166     {
1167         if ( format == wxPATH_VMS )
1168         {
1169             fullpath += wxT('[');
1170         }
1171
1172         for ( size_t i = 0; i < dirCount; i++ )
1173         {
1174             // TODO: What to do with ".." under VMS
1175
1176             switch (format)
1177             {
1178                 case wxPATH_MAC:
1179                 {
1180                     if (m_dirs[i] == wxT("."))
1181                         break;
1182                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1183                          fullpath += m_dirs[i];
1184                     fullpath += wxT(':');
1185                     break;
1186                 }
1187                 case wxPATH_DOS:
1188                 {
1189                     fullpath += m_dirs[i];
1190                     fullpath += wxT('\\');
1191                     break;
1192                 }
1193                 case wxPATH_UNIX:
1194                 {
1195                     fullpath += m_dirs[i];
1196                     fullpath += wxT('/');
1197                     break;
1198                 }
1199                 case wxPATH_VMS:
1200                 {
1201                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1202                         fullpath += m_dirs[i];
1203                     if (i == dirCount-1)
1204                         fullpath += wxT(']');
1205                     else
1206                         fullpath += wxT('.');
1207                     break;
1208                 }
1209                 default:
1210                 {
1211                     wxFAIL_MSG( wxT("error") );
1212                 }
1213             }
1214         }
1215     }
1216
1217     if ( (flags & wxPATH_GET_SEPARATOR) && !fullpath.empty() )
1218     {
1219         fullpath += GetPathSeparator(format);
1220     }
1221
1222     return fullpath;
1223 }
1224
1225 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1226 {
1227     format = GetFormat(format);
1228
1229     // first put the volume
1230     wxString fullpath = wxGetVolumeString(m_volume, format);
1231
1232     // the leading character
1233     if ( format == wxPATH_MAC )
1234     {
1235         if ( m_relative )
1236             fullpath += wxFILE_SEP_PATH_MAC;
1237     }
1238     else if ( format == wxPATH_DOS )
1239     {
1240         if ( !m_relative )
1241             fullpath += wxFILE_SEP_PATH_DOS;
1242     }
1243     else if ( format == wxPATH_UNIX )
1244     {
1245         if ( !m_relative )
1246         {
1247             // normally the absolute file names starts with a slash with one
1248             // exception: file names like "~/foo.bar" don't have it
1249             if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1250             {
1251                 fullpath += wxFILE_SEP_PATH_UNIX;
1252             }
1253         }
1254     }
1255
1256     // then concatenate all the path components using the path separator
1257     size_t dirCount = m_dirs.GetCount();
1258     if ( dirCount )
1259     {
1260         if ( format == wxPATH_VMS )
1261         {
1262             fullpath += wxT('[');
1263         }
1264
1265
1266         for ( size_t i = 0; i < dirCount; i++ )
1267         {
1268             // TODO: What to do with ".." under VMS
1269
1270             switch (format)
1271             {
1272                 case wxPATH_MAC:
1273                 {
1274                     if (m_dirs[i] == wxT("."))
1275                         break;
1276                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1277                          fullpath += m_dirs[i];
1278                     fullpath += wxT(':');
1279                     break;
1280                 }
1281                 case wxPATH_DOS:
1282                 {
1283                     fullpath += m_dirs[i];
1284                     fullpath += wxT('\\');
1285                     break;
1286                 }
1287                 case wxPATH_UNIX:
1288                 {
1289                     fullpath += m_dirs[i];
1290                     fullpath += wxT('/');
1291                     break;
1292                 }
1293                 case wxPATH_VMS:
1294                 {
1295                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1296                         fullpath += m_dirs[i];
1297                     if (i == dirCount-1)
1298                         fullpath += wxT(']');
1299                     else
1300                         fullpath += wxT('.');
1301                     break;
1302                 }
1303                 default:
1304                 {
1305                     wxFAIL_MSG( wxT("error") );
1306                 }
1307             }
1308         }
1309     }
1310
1311     // finally add the file name and extension
1312     fullpath += GetFullName();
1313
1314     return fullpath;
1315 }
1316
1317 // Return the short form of the path (returns identity on non-Windows platforms)
1318 wxString wxFileName::GetShortPath() const
1319 {
1320 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1321     wxString path(GetFullPath());
1322     wxString pathOut;
1323     DWORD sz = ::GetShortPathName(path, NULL, 0);
1324     bool ok = sz != 0;
1325     if ( ok )
1326     {
1327         ok = ::GetShortPathName
1328                (
1329                 path,
1330                 pathOut.GetWriteBuf(sz),
1331                 sz
1332                ) != 0;
1333         pathOut.UngetWriteBuf();
1334     }
1335     if (ok)
1336         return pathOut;
1337
1338     return path;
1339 #else
1340     return GetFullPath();
1341 #endif
1342 }
1343
1344 // Return the long form of the path (returns identity on non-Windows platforms)
1345 wxString wxFileName::GetLongPath() const
1346 {
1347     wxString pathOut,
1348              path = GetFullPath();
1349
1350 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1351     bool success = FALSE;
1352
1353 #if wxUSE_DYNAMIC_LOADER
1354     typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1355
1356     static bool s_triedToLoad = FALSE;
1357
1358     if ( !s_triedToLoad )
1359     {
1360         s_triedToLoad = TRUE;
1361         wxDynamicLibrary dllKernel(_T("kernel32"));
1362         if ( dllKernel.IsLoaded() )
1363         {
1364             // may succeed or fail depending on the Windows version
1365             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1366 #ifdef _UNICODE
1367             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1368 #else
1369             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1370 #endif
1371
1372             if ( s_pfnGetLongPathName )
1373             {
1374                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1375                 bool ok = dwSize > 0;
1376
1377                 if ( ok )
1378                 {
1379                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1380                     ok = sz != 0;
1381                     if ( ok )
1382                     {
1383                         ok = (*s_pfnGetLongPathName)
1384                                 (
1385                                 path,
1386                                 pathOut.GetWriteBuf(sz),
1387                                 sz
1388                                 ) != 0;
1389                         pathOut.UngetWriteBuf();
1390
1391                         success = TRUE;
1392                     }
1393                 }
1394             }
1395         }
1396     }
1397     if (success)
1398         return pathOut;
1399 #endif // wxUSE_DYNAMIC_LOADER
1400
1401     if (!success)
1402     {
1403         // The OS didn't support GetLongPathName, or some other error.
1404         // We need to call FindFirstFile on each component in turn.
1405
1406         WIN32_FIND_DATA findFileData;
1407         HANDLE hFind;
1408         pathOut = wxEmptyString;
1409
1410         wxArrayString dirs = GetDirs();
1411         dirs.Add(GetFullName());
1412
1413         wxString tmpPath;
1414
1415         size_t count = dirs.GetCount();
1416         for ( size_t i = 0; i < count; i++ )
1417         {
1418             // We're using pathOut to collect the long-name path, but using a
1419             // temporary for appending the last path component which may be
1420             // short-name
1421             tmpPath = pathOut + dirs[i];
1422
1423             if ( tmpPath.empty() )
1424                 continue;
1425
1426             if ( tmpPath.Last() == wxT(':') )
1427             {
1428                 // Can't pass a drive and root dir to FindFirstFile,
1429                 // so continue to next dir
1430                 tmpPath += wxFILE_SEP_PATH;
1431                 pathOut = tmpPath;
1432                 continue;
1433             }
1434
1435             hFind = ::FindFirstFile(tmpPath, &findFileData);
1436             if (hFind == INVALID_HANDLE_VALUE)
1437             {
1438                 // Error: return immediately with the original path
1439                 return path;
1440             }
1441
1442             pathOut += findFileData.cFileName;
1443             if ( (i < (count-1)) )
1444                 pathOut += wxFILE_SEP_PATH;
1445
1446             ::FindClose(hFind);
1447         }
1448     }
1449 #else // !Win32
1450     pathOut = path;
1451 #endif // Win32/!Win32
1452
1453     return pathOut;
1454 }
1455
1456 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1457 {
1458     if (format == wxPATH_NATIVE)
1459     {
1460 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1461         format = wxPATH_DOS;
1462 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1463         format = wxPATH_MAC;
1464 #elif defined(__VMS)
1465         format = wxPATH_VMS;
1466 #else
1467         format = wxPATH_UNIX;
1468 #endif
1469     }
1470     return format;
1471 }
1472
1473 // ----------------------------------------------------------------------------
1474 // path splitting function
1475 // ----------------------------------------------------------------------------
1476
1477 /* static */
1478 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1479                            wxString *pstrVolume,
1480                            wxString *pstrPath,
1481                            wxString *pstrName,
1482                            wxString *pstrExt,
1483                            wxPathFormat format)
1484 {
1485     format = GetFormat(format);
1486
1487     wxString fullpath = fullpathWithVolume;
1488
1489     // under VMS the end of the path is ']', not the path separator used to
1490     // separate the components
1491     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1492                                             : GetPathSeparators(format);
1493
1494     // special Windows UNC paths hack: transform \\share\path into share:path
1495     if ( format == wxPATH_DOS )
1496     {
1497         if ( fullpath.length() >= 4 &&
1498                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1499                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1500         {
1501             fullpath.erase(0, 2);
1502
1503             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1504             if ( posFirstSlash != wxString::npos )
1505             {
1506                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1507
1508                 // UNC paths are always absolute, right? (FIXME)
1509                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1510             }
1511         }
1512     }
1513
1514     // We separate the volume here
1515     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1516     {
1517         wxString sepVol = GetVolumeSeparator(format);
1518
1519         size_t posFirstColon = fullpath.find_first_of(sepVol);
1520         if ( posFirstColon != wxString::npos )
1521         {
1522             if ( pstrVolume )
1523             {
1524                 *pstrVolume = fullpath.Left(posFirstColon);
1525             }
1526
1527             // remove the volume name and the separator from the full path
1528             fullpath.erase(0, posFirstColon + sepVol.length());
1529         }
1530     }
1531
1532     // find the positions of the last dot and last path separator in the path
1533     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1534     size_t posLastSlash = fullpath.find_last_of(sepPath);
1535
1536     if ( (posLastDot != wxString::npos) &&
1537             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1538     {
1539         if ( (posLastDot == 0) ||
1540              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1541         {
1542             // under Unix and VMS, dot may be (and commonly is) the first
1543             // character of the filename, don't treat the entire filename as
1544             // extension in this case
1545             posLastDot = wxString::npos;
1546         }
1547     }
1548
1549     // if we do have a dot and a slash, check that the dot is in the name part
1550     if ( (posLastDot != wxString::npos) &&
1551          (posLastSlash != wxString::npos) &&
1552          (posLastDot < posLastSlash) )
1553     {
1554         // the dot is part of the path, not the start of the extension
1555         posLastDot = wxString::npos;
1556     }
1557
1558     // now fill in the variables provided by user
1559     if ( pstrPath )
1560     {
1561         if ( posLastSlash == wxString::npos )
1562         {
1563             // no path at all
1564             pstrPath->Empty();
1565         }
1566         else
1567         {
1568             // take everything up to the path separator but take care to make
1569             // the path equal to something like '/', not empty, for the files
1570             // immediately under root directory
1571             size_t len = posLastSlash;
1572
1573             // this rule does not apply to mac since we do not start with colons (sep)
1574             // except for relative paths
1575             if ( !len && format != wxPATH_MAC)
1576                 len++;
1577
1578             *pstrPath = fullpath.Left(len);
1579
1580             // special VMS hack: remove the initial bracket
1581             if ( format == wxPATH_VMS )
1582             {
1583                 if ( (*pstrPath)[0u] == _T('[') )
1584                     pstrPath->erase(0, 1);
1585             }
1586         }
1587     }
1588
1589     if ( pstrName )
1590     {
1591         // take all characters starting from the one after the last slash and
1592         // up to, but excluding, the last dot
1593         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1594         size_t count;
1595         if ( posLastDot == wxString::npos )
1596         {
1597             // take all until the end
1598             count = wxString::npos;
1599         }
1600         else if ( posLastSlash == wxString::npos )
1601         {
1602             count = posLastDot;
1603         }
1604         else // have both dot and slash
1605         {
1606             count = posLastDot - posLastSlash - 1;
1607         }
1608
1609         *pstrName = fullpath.Mid(nStart, count);
1610     }
1611
1612     if ( pstrExt )
1613     {
1614         if ( posLastDot == wxString::npos )
1615         {
1616             // no extension
1617             pstrExt->Empty();
1618         }
1619         else
1620         {
1621             // take everything after the dot
1622             *pstrExt = fullpath.Mid(posLastDot + 1);
1623         }
1624     }
1625 }
1626
1627 /* static */
1628 void wxFileName::SplitPath(const wxString& fullpath,
1629                            wxString *path,
1630                            wxString *name,
1631                            wxString *ext,
1632                            wxPathFormat format)
1633 {
1634     wxString volume;
1635     SplitPath(fullpath, &volume, path, name, ext, format);
1636
1637     if ( path )
1638     {
1639         path->Prepend(wxGetVolumeString(volume, format));
1640     }
1641 }
1642
1643 // ----------------------------------------------------------------------------
1644 // time functions
1645 // ----------------------------------------------------------------------------
1646
1647 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
1648                           const wxDateTime *dtMod,
1649                           const wxDateTime *dtCreate)
1650 {
1651 #if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1652     if ( !dtAccess && !dtMod )
1653     {
1654         // can't modify the creation time anyhow, don't try
1655         return TRUE;
1656     }
1657
1658     // if dtAccess or dtMod is not specified, use the other one (which must be
1659     // non NULL because of the test above) for both times
1660     utimbuf utm;
1661     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1662     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1663     if ( utime(GetFullPath(), &utm) == 0 )
1664     {
1665         return TRUE;
1666     }
1667 #elif defined(__WIN32__)
1668     wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
1669     if ( fh.IsOk() )
1670     {
1671         FILETIME ftAccess, ftCreate, ftWrite;
1672
1673         if ( dtCreate )
1674             ConvertWxToFileTime(&ftCreate, *dtCreate);
1675         if ( dtAccess )
1676             ConvertWxToFileTime(&ftAccess, *dtAccess);
1677         if ( dtMod )
1678             ConvertWxToFileTime(&ftWrite, *dtMod);
1679
1680         if ( ::SetFileTime(fh,
1681                            dtCreate ? &ftCreate : NULL,
1682                            dtAccess ? &ftAccess : NULL,
1683                            dtMod ? &ftWrite : NULL) )
1684         {
1685             return TRUE;
1686         }
1687     }
1688 #else // other platform
1689 #endif // platforms
1690
1691     wxLogSysError(_("Failed to modify file times for '%s'"),
1692                   GetFullPath().c_str());
1693
1694     return FALSE;
1695 }
1696
1697 bool wxFileName::Touch()
1698 {
1699 #if defined(__UNIX_LIKE__)
1700     // under Unix touching file is simple: just pass NULL to utime()
1701     if ( utime(GetFullPath(), NULL) == 0 )
1702     {
1703         return TRUE;
1704     }
1705
1706     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1707
1708     return FALSE;
1709 #else // other platform
1710     wxDateTime dtNow = wxDateTime::Now();
1711
1712     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
1713 #endif // platforms
1714 }
1715
1716 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1717                           wxDateTime *dtMod,
1718                           wxDateTime *dtCreate) const
1719 {
1720 #if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1721     wxStructStat stBuf;
1722     if ( wxStat(GetFullPath(), &stBuf) == 0 )
1723     {
1724         if ( dtAccess )
1725             dtAccess->Set(stBuf.st_atime);
1726         if ( dtMod )
1727             dtMod->Set(stBuf.st_mtime);
1728         if ( dtCreate )
1729             dtCreate->Set(stBuf.st_ctime);
1730
1731         return TRUE;
1732     }
1733 #elif defined(__WIN32__)
1734     wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
1735     if ( fh.IsOk() )
1736     {
1737         FILETIME ftAccess, ftCreate, ftWrite;
1738
1739         if ( ::GetFileTime(fh,
1740                            dtMod ? &ftCreate : NULL,
1741                            dtAccess ? &ftAccess : NULL,
1742                            dtCreate ? &ftWrite : NULL) )
1743         {
1744             if ( dtMod )
1745                 ConvertFileTimeToWx(dtMod, ftCreate);
1746             if ( dtAccess )
1747                 ConvertFileTimeToWx(dtAccess, ftAccess);
1748             if ( dtCreate )
1749                 ConvertFileTimeToWx(dtCreate, ftWrite);
1750
1751             return TRUE;
1752         }
1753     }
1754 #else // other platform
1755 #endif // platforms
1756
1757     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1758                   GetFullPath().c_str());
1759
1760     return FALSE;
1761 }
1762
1763 #ifdef __WXMAC__
1764
1765 const short kMacExtensionMaxLength = 16 ;
1766 typedef struct
1767 {
1768   char m_ext[kMacExtensionMaxLength] ;
1769   OSType m_type ;
1770   OSType m_creator ;
1771 } MacDefaultExtensionRecord ;
1772
1773 #include "wx/dynarray.h"
1774 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
1775 #include "wx/arrimpl.cpp"
1776 WX_DEFINE_OBJARRAY(MacDefaultExtensionArray) ;
1777
1778 MacDefaultExtensionArray gMacDefaultExtensions ;
1779 bool gMacDefaultExtensionsInited = false ;
1780
1781 static void MacEnsureDefaultExtensionsLoaded()
1782 {
1783   if ( !gMacDefaultExtensionsInited )
1784   {
1785     // load the default extensions
1786     MacDefaultExtensionRecord defaults[] =
1787     {
1788       { "txt" , 'TEXT' , 'ttxt' } ,
1789
1790     } ;
1791     // we could load the pc exchange prefs here too
1792
1793     for ( int i = 0 ; i < WXSIZEOF( defaults ) ; ++i )
1794     {
1795       gMacDefaultExtensions.Add( defaults[i] ) ;
1796     }
1797     gMacDefaultExtensionsInited = true ;
1798   }
1799 }
1800 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
1801 {
1802   FInfo fndrInfo ;
1803   FSSpec spec ;
1804   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1805   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1806   wxCHECK( err == noErr , false ) ;
1807
1808   fndrInfo.fdType = type ;
1809   fndrInfo.fdCreator = creator ;
1810   FSpSetFInfo( &spec , &fndrInfo ) ;
1811   return true ;
1812 }
1813
1814 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
1815 {
1816   FInfo fndrInfo ;
1817   FSSpec spec ;
1818   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1819   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1820   wxCHECK( err == noErr , false ) ;
1821
1822   *type = fndrInfo.fdType ;
1823   *creator = fndrInfo.fdCreator ;
1824   return true ;
1825 }
1826
1827 bool wxFileName::MacSetDefaultTypeAndCreator()
1828 {
1829     wxUint32 type , creator ;
1830     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
1831       &creator ) )
1832     {
1833         return MacSetTypeAndCreator( type , creator ) ;
1834     }
1835     return false;
1836 }
1837
1838 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
1839 {
1840   MacEnsureDefaultExtensionsLoaded() ;
1841   wxString extl = ext.Lower() ;
1842   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
1843   {
1844     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
1845     {
1846       *type = gMacDefaultExtensions.Item(i).m_type ;
1847       *creator = gMacDefaultExtensions.Item(i).m_creator ;
1848       return true ;
1849     }
1850   }
1851   return false ;
1852 }
1853
1854 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
1855 {
1856   MacEnsureDefaultExtensionsLoaded() ;
1857   MacDefaultExtensionRecord rec ;
1858   rec.m_type = type ;
1859   rec.m_creator = creator ;
1860   strncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
1861   gMacDefaultExtensions.Add( rec ) ;
1862 }
1863 #endif