src/common/filename.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/filename.cpp
   3 // Purpose:     wxFileName - encapsulates a file path
   4 // Author:      Robert Roebling, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.12.2000
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 /*
  13    Here are brief descriptions of the filename formats supported by this class:
  14
  15    wxPATH_UNIX: standard Unix format, used under Darwin as well, absolute file
  16                 names have the form:
  17                 /dir1/dir2/.../dirN/filename, "." and ".." stand for the
  18                 current and parent directory respectively, "~" is parsed as the
  19                 user HOME and "~username" as the HOME of that user
  20
  21    wxPATH_DOS:  DOS/Windows format, absolute file names have the form:
  22                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
  23                 letter. "." and ".." as for Unix but no "~".
  24
  25                 There are also UNC names of the form \\share\fullpath
  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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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 "wx/msw/wrapwin.h"
  90 #endif
  91
  92 #ifdef __WXWINCE__
  93 #include "wx/msw/private.h"
  94 #endif
  95
  96 #if defined(__WXMAC__)
  97   #include  "wx/mac/private.h"  // includes mac headers
  98 #endif
  99
 100 // utime() is POSIX so should normally be available on all Unices
 101 #ifdef __UNIX_LIKE__
 102 #include <sys/types.h>
 103 #include <utime.h>
 104 #include <sys/stat.h>
 105 #include <unistd.h>
 106 #endif
 107
 108 #ifdef __DJGPP__
 109 #include <unistd.h>
 110 #endif
 111
 112 #ifdef __MWERKS__
 113 #ifdef __MACH__
 114 #include <sys/types.h>
 115 #include <utime.h>
 116 #include <sys/stat.h>
 117 #include <unistd.h>
 118 #else
 119 #include <stat.h>
 120 #include <unistd.h>
 121 #include <unix.h>
 122 #endif
 123 #endif
 124
 125 #ifdef __WATCOMC__
 126 #include <io.h>
 127 #include <sys/utime.h>
 128 #include <sys/stat.h>
 129 #endif
 130
 131 #ifdef __VISAGECPP__
 132 #ifndef MAX_PATH
 133 #define MAX_PATH 256
 134 #endif
 135 #endif
 136
 137 #ifdef __EMX__
 138 #define MAX_PATH _MAX_PATH
 139 #endif
 140
 141 // ----------------------------------------------------------------------------
 142 // private classes
 143 // ----------------------------------------------------------------------------
 144
 145 // small helper class which opens and closes the file - we use it just to get
 146 // a file handle for the given file name to pass it to some Win32 API function
 147 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 148
 149 class wxFileHandle
 150 {
 151 public:
 152     enum OpenMode
 153     {
 154         Read,
 155         Write
 156     };
 157
 158     wxFileHandle(const wxString& filename, OpenMode mode)
 159     {
 160         m_hFile = ::CreateFile
 161                     (
 162                      filename,                      // name
 163                      mode == Read ? GENERIC_READ    // access mask
 164                                   : GENERIC_WRITE,
 165                      0,                             // no sharing
 166                      NULL,                          // no secutity attr
 167                      OPEN_EXISTING,                 // creation disposition
 168                      0,                             // no flags
 169                      NULL                           // no template file
 170                     );
 171
 172         if ( m_hFile == INVALID_HANDLE_VALUE )
 173         {
 174             wxLogSysError(_("Failed to open '%s' for %s"),
 175                           filename.c_str(),
 176                           mode == Read ? _("reading") : _("writing"));
 177         }
 178     }
 179
 180     ~wxFileHandle()
 181     {
 182         if ( m_hFile != INVALID_HANDLE_VALUE )
 183         {
 184             if ( !::CloseHandle(m_hFile) )
 185             {
 186                 wxLogSysError(_("Failed to close file handle"));
 187             }
 188         }
 189     }
 190
 191     // return true only if the file could be opened successfully
 192     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 193
 194     // get the handle
 195     operator HANDLE() const { return m_hFile; }
 196
 197 private:
 198     HANDLE m_hFile;
 199 };
 200
 201 #endif // __WIN32__
 202
 203 // ----------------------------------------------------------------------------
 204 // private functions
 205 // ----------------------------------------------------------------------------
 206
 207 #if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
 208
 209 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 210 // the number of 100-nanosecond intervals since January 1, 1601.
 211
 212 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 213 {
 214     FILETIME ftcopy = ft;
 215     FILETIME ftLocal;
 216     if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
 217     {
 218         wxLogLastError(_T("FileTimeToLocalFileTime"));
 219     }
 220
 221     SYSTEMTIME st;
 222     if ( !::FileTimeToSystemTime(&ftLocal, &st) )
 223     {
 224         wxLogLastError(_T("FileTimeToSystemTime"));
 225     }
 226
 227     dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
 228             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
 229 }
 230
 231 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 232 {
 233     SYSTEMTIME st;
 234     st.wDay = dt.GetDay();
 235     st.wMonth = dt.GetMonth() + 1;
 236     st.wYear = dt.GetYear();
 237     st.wHour = dt.GetHour();
 238     st.wMinute = dt.GetMinute();
 239     st.wSecond = dt.GetSecond();
 240     st.wMilliseconds = dt.GetMillisecond();
 241
 242     FILETIME ftLocal;
 243     if ( !::SystemTimeToFileTime(&st, &ftLocal) )
 244     {
 245         wxLogLastError(_T("SystemTimeToFileTime"));
 246     }
 247
 248     if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
 249     {
 250         wxLogLastError(_T("LocalFileTimeToFileTime"));
 251     }
 252 }
 253
 254 #endif // wxUSE_DATETIME && __WIN32__
 255
 256 // return a string with the volume par
 257 static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
 258 {
 259     wxString path;
 260
 261     if ( !volume.empty() )
 262     {
 263         format = wxFileName::GetFormat(format);
 264
 265         // Special Windows UNC paths hack, part 2: undo what we did in
 266         // SplitPath() and make an UNC path if we have a drive which is not a
 267         // single letter (hopefully the network shares can't be one letter only
 268         // although I didn't find any authoritative docs on this)
 269         if ( format == wxPATH_DOS && volume.length() > 1 )
 270         {
 271             path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 272         }
 273         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 274         {
 275             path << volume << wxFileName::GetVolumeSeparator(format);
 276         }
 277         // else ignore
 278     }
 279
 280     return path;
 281 }
 282
 283 // ============================================================================
 284 // implementation
 285 // ============================================================================
 286
 287 // ----------------------------------------------------------------------------
 288 // wxFileName construction
 289 // ----------------------------------------------------------------------------
 290
 291 void wxFileName::Assign( const wxFileName &filepath )
 292 {
 293     m_volume = filepath.GetVolume();
 294     m_dirs = filepath.GetDirs();
 295     m_name = filepath.GetName();
 296     m_ext = filepath.GetExt();
 297     m_relative = filepath.m_relative;
 298 }
 299
 300 void wxFileName::Assign(const wxString& volume,
 301                         const wxString& path,
 302                         const wxString& name,
 303                         const wxString& ext,
 304                         wxPathFormat format )
 305 {
 306     SetPath( path, format );
 307
 308     m_volume = volume;
 309     m_ext = ext;
 310     m_name = name;
 311 }
 312
 313 void wxFileName::SetPath( const wxString &path, wxPathFormat format )
 314 {
 315     m_dirs.Clear();
 316
 317     if ( !path.empty() )
 318     {
 319         wxPathFormat my_format = GetFormat( format );
 320         wxString my_path = path;
 321
 322         // 1) Determine if the path is relative or absolute.
 323         wxChar leadingChar = my_path[0u];
 324
 325         switch (my_format)
 326         {
 327             case wxPATH_MAC:
 328                 m_relative = leadingChar == wxT(':');
 329
 330                 // We then remove a leading ":". The reason is in our
 331                 // storage form for relative paths:
 332                 // ":dir:file.txt" actually means "./dir/file.txt" in
 333                 // DOS notation and should get stored as
 334                 // (relative) (dir) (file.txt)
 335                 // "::dir:file.txt" actually means "../dir/file.txt"
 336                 // stored as (relative) (..) (dir) (file.txt)
 337                 // This is important only for the Mac as an empty dir
 338                 // actually means <UP>, whereas under DOS, double
 339                 // slashes can be ignored: "\\\\" is the same as "\\".
 340                 if (m_relative)
 341                     my_path.erase( 0, 1 );
 342                 break;
 343
 344             case wxPATH_VMS:
 345                 // TODO: what is the relative path format here?
 346                 m_relative = false;
 347                 break;
 348
 349             default:
 350                 wxFAIL_MSG( _T("Unknown path format") );
 351                 // !! Fall through !!
 352
 353             case wxPATH_UNIX:
 354                 // the paths of the form "~" or "~username" are absolute
 355                 m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
 356                 break;
 357
 358             case wxPATH_DOS:
 359                 m_relative = !IsPathSeparator(leadingChar, my_format);
 360                 break;
 361
 362         }
 363
 364         // 2) Break up the path into its members. If the original path
 365         //    was just "/" or "\\", m_dirs will be empty. We know from
 366         //    the m_relative field, if this means "nothing" or "root dir".
 367
 368         wxStringTokenizer tn( my_path, GetPathSeparators(my_format) );
 369
 370         while ( tn.HasMoreTokens() )
 371         {
 372             wxString token = tn.GetNextToken();
 373
 374             // Remove empty token under DOS and Unix, interpret them
 375             // as .. under Mac.
 376             if (token.empty())
 377             {
 378                 if (my_format == wxPATH_MAC)
 379                     m_dirs.Add( wxT("..") );
 380                 // else ignore
 381             }
 382             else
 383             {
 384                m_dirs.Add( token );
 385             }
 386         }
 387     }
 388     else // no path at all
 389     {
 390         m_relative = true;
 391     }
 392 }
 393
 394 void wxFileName::Assign(const wxString& fullpath,
 395                         wxPathFormat format)
 396 {
 397     wxString volume, path, name, ext;
 398     SplitPath(fullpath, &volume, &path, &name, &ext, format);
 399
 400     Assign(volume, path, name, ext, format);
 401 }
 402
 403 void wxFileName::Assign(const wxString& fullpathOrig,
 404                         const wxString& fullname,
 405                         wxPathFormat format)
 406 {
 407     // always recognize fullpath as directory, even if it doesn't end with a
 408     // slash
 409     wxString fullpath = fullpathOrig;
 410     if ( !wxEndsWithPathSeparator(fullpath) )
 411     {
 412         fullpath += GetPathSeparator(format);
 413     }
 414
 415     wxString volume, path, name, ext;
 416
 417     // do some consistency checks in debug mode: the name should be really just
 418     // the filename and the path should be really just a path
 419 #ifdef __WXDEBUG__
 420     wxString pathDummy, nameDummy, extDummy;
 421
 422     SplitPath(fullname, &pathDummy, &name, &ext, format);
 423
 424     wxASSERT_MSG( pathDummy.empty(),
 425                   _T("the file name shouldn't contain the path") );
 426
 427     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 428
 429     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 430                   _T("the path shouldn't contain file name nor extension") );
 431
 432 #else // !__WXDEBUG__
 433     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 434     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 435 #endif // __WXDEBUG__/!__WXDEBUG__
 436
 437     Assign(volume, path, name, ext, format);
 438 }
 439
 440 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 441 {
 442     Assign(dir, _T(""), format);
 443 }
 444
 445 void wxFileName::Clear()
 446 {
 447     m_dirs.Clear();
 448
 449     m_volume =
 450     m_name =
 451     m_ext = wxEmptyString;
 452
 453     // we don't have any absolute path for now
 454     m_relative = true;
 455 }
 456
 457 /* static */
 458 wxFileName wxFileName::FileName(const wxString& file, wxPathFormat format)
 459 {
 460     return wxFileName(file, format);
 461 }
 462
 463 /* static */
 464 wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
 465 {
 466     wxFileName fn;
 467     fn.AssignDir(dir, format);
 468     return fn;
 469 }
 470
 471 // ----------------------------------------------------------------------------
 472 // existence tests
 473 // ----------------------------------------------------------------------------
 474
 475 bool wxFileName::FileExists() const
 476 {
 477     return wxFileName::FileExists( GetFullPath() );
 478 }
 479
 480 bool wxFileName::FileExists( const wxString &file )
 481 {
 482     return ::wxFileExists( file );
 483 }
 484
 485 bool wxFileName::DirExists() const
 486 {
 487     return wxFileName::DirExists( GetFullPath() );
 488 }
 489
 490 bool wxFileName::DirExists( const wxString &dir )
 491 {
 492     return ::wxDirExists( dir );
 493 }
 494
 495 // ----------------------------------------------------------------------------
 496 // CWD and HOME stuff
 497 // ----------------------------------------------------------------------------
 498
 499 void wxFileName::AssignCwd(const wxString& volume)
 500 {
 501     AssignDir(wxFileName::GetCwd(volume));
 502 }
 503
 504 /* static */
 505 wxString wxFileName::GetCwd(const wxString& volume)
 506 {
 507     // if we have the volume, we must get the current directory on this drive
 508     // and to do this we have to chdir to this volume - at least under Windows,
 509     // I don't know how to get the current drive on another volume elsewhere
 510     // (TODO)
 511     wxString cwdOld;
 512     if ( !volume.empty() )
 513     {
 514         cwdOld = wxGetCwd();
 515         SetCwd(volume + GetVolumeSeparator());
 516     }
 517
 518     wxString cwd = ::wxGetCwd();
 519
 520     if ( !volume.empty() )
 521     {
 522         SetCwd(cwdOld);
 523     }
 524
 525     return cwd;
 526 }
 527
 528 bool wxFileName::SetCwd()
 529 {
 530     return wxFileName::SetCwd( GetFullPath() );
 531 }
 532
 533 bool wxFileName::SetCwd( const wxString &cwd )
 534 {
 535     return ::wxSetWorkingDirectory( cwd );
 536 }
 537
 538 void wxFileName::AssignHomeDir()
 539 {
 540     AssignDir(wxFileName::GetHomeDir());
 541 }
 542
 543 wxString wxFileName::GetHomeDir()
 544 {
 545     return ::wxGetHomeDir();
 546 }
 547
 548 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 549 {
 550     wxString tempname = CreateTempFileName(prefix, fileTemp);
 551     if ( tempname.empty() )
 552     {
 553         // error, failed to get temp file name
 554         Clear();
 555     }
 556     else // ok
 557     {
 558         Assign(tempname);
 559     }
 560 }
 561
 562 /* static */
 563 wxString
 564 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 565 {
 566     wxString path, dir, name;
 567
 568     // use the directory specified by the prefix
 569     SplitPath(prefix, &dir, &name, NULL /* extension */);
 570
 571 #if defined(__WXWINCE__)
 572     if (dir.empty())
 573     {
 574         // FIXME. Create \temp dir?
 575         dir = wxT("\\");
 576     }
 577     path = dir + wxT("\\") + prefix;
 578     int i = 1;
 579     while (wxFileExists(path))
 580     {
 581         path = dir + wxT("\\") + prefix ;
 582         path << i;
 583         i ++;
 584     }
 585
 586 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 587 #ifdef __WIN32__
 588     if ( dir.empty() )
 589     {
 590         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
 591         {
 592             wxLogLastError(_T("GetTempPath"));
 593         }
 594
 595         if ( dir.empty() )
 596         {
 597             // GetTempFileName() fails if we pass it an empty string
 598             dir = _T('.');
 599         }
 600     }
 601     else // we have a dir to create the file in
 602     {
 603         // ensure we use only the back slashes as GetTempFileName(), unlike all
 604         // the other APIs, is picky and doesn't accept the forward ones
 605         dir.Replace(_T("/"), _T("\\"));
 606     }
 607
 608     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 609     {
 610         wxLogLastError(_T("GetTempFileName"));
 611
 612         path.clear();
 613     }
 614 #else // Win16
 615     if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
 616     {
 617         path.clear();
 618     }
 619 #endif // Win32/16
 620
 621 #elif defined(__WXPM__)
 622     // for now just create a file
 623     //
 624     // future enhancements can be to set some extended attributes for file
 625     // systems OS/2 supports that have them (HPFS, FAT32) and security
 626     // (HPFS386)
 627     static const wxChar *szMktempSuffix = wxT("XXX");
 628     path << dir << _T('/') << name << szMktempSuffix;
 629
 630     // Temporarily remove - MN
 631     #ifndef __WATCOMC__
 632         ::DosCreateDir(wxStringBuffer(path, MAX_PATH), NULL);
 633     #endif
 634
 635 #else // !Windows, !OS/2
 636     if ( dir.empty() )
 637     {
 638 #if defined(__WXMAC__) && !defined(__DARWIN__)
 639         dir = wxMacFindFolder(  (short) kOnSystemDisk, kTemporaryFolderType, kCreateFolder ) ;
 640 #else // !Mac
 641         dir = wxGetenv(_T("TMP"));
 642         if ( dir.empty() )
 643         {
 644             dir = wxGetenv(_T("TEMP"));
 645         }
 646
 647         if ( dir.empty() )
 648         {
 649             // default
 650             #ifdef __DOS__
 651                 dir = _T(".");
 652             #else
 653                 dir = _T("/tmp");
 654             #endif
 655         }
 656 #endif // Mac/!Mac
 657     }
 658
 659     path = dir;
 660
 661     if ( !wxEndsWithPathSeparator(dir) &&
 662             (name.empty() || !wxIsPathSeparator(name[0u])) )
 663     {
 664         path += wxFILE_SEP_PATH;
 665     }
 666
 667     path += name;
 668
 669 #if defined(HAVE_MKSTEMP)
 670     // scratch space for mkstemp()
 671     path += _T("XXXXXX");
 672
 673     // we need to copy the path to the buffer in which mkstemp() can modify it
 674     wxCharBuffer buf( wxConvFile.cWX2MB( path ) );
 675
 676     // cast is safe because the string length doesn't change
 677     int fdTemp = mkstemp( (char*)(const char*) buf );
 678     if ( fdTemp == -1 )
 679     {
 680         // this might be not necessary as mkstemp() on most systems should have
 681         // already done it but it doesn't hurt neither...
 682         path.clear();
 683     }
 684     else // mkstemp() succeeded
 685     {
 686         path = wxConvFile.cMB2WX( (const char*) buf );
 687
 688         // avoid leaking the fd
 689         if ( fileTemp )
 690         {
 691             fileTemp->Attach(fdTemp);
 692         }
 693         else
 694         {
 695             close(fdTemp);
 696         }
 697     }
 698 #else // !HAVE_MKSTEMP
 699
 700 #ifdef HAVE_MKTEMP
 701     // same as above
 702     path += _T("XXXXXX");
 703
 704     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 705     if ( !mktemp( (const char*) buf ) )
 706     {
 707         path.clear();
 708     }
 709     else
 710     {
 711         path = wxConvFile.cMB2WX( (const char*) buf );
 712     }
 713 #else // !HAVE_MKTEMP (includes __DOS__)
 714     // generate the unique file name ourselves
 715     #if !defined(__DOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
 716     path << (unsigned int)getpid();
 717     #endif
 718
 719     wxString pathTry;
 720
 721     static const size_t numTries = 1000;
 722     for ( size_t n = 0; n < numTries; n++ )
 723     {
 724         // 3 hex digits is enough for numTries == 1000 < 4096
 725         pathTry = path + wxString::Format(_T("%.03x"), n);
 726         if ( !wxFile::Exists(pathTry) )
 727         {
 728             break;
 729         }
 730
 731         pathTry.clear();
 732     }
 733
 734     path = pathTry;
 735 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 736
 737     if ( !path.empty() )
 738     {
 739     }
 740 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 741
 742 #endif // Windows/!Windows
 743
 744     if ( path.empty() )
 745     {
 746         wxLogSysError(_("Failed to create a temporary file name"));
 747     }
 748     else if ( fileTemp && !fileTemp->IsOpened() )
 749     {
 750         // open the file - of course, there is a race condition here, this is
 751         // why we always prefer using mkstemp()...
 752         //
 753         // NB: GetTempFileName() under Windows creates the file, so using
 754         //     write_excl there would fail
 755         if ( !fileTemp->Open(path,
 756 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 757                              wxFile::write,
 758 #else
 759                              wxFile::write_excl,
 760 #endif
 761                              wxS_IRUSR | wxS_IWUSR) )
 762         {
 763             // FIXME: If !ok here should we loop and try again with another
 764             //        file name?  That is the standard recourse if open(O_EXCL)
 765             //        fails, though of course it should be protected against
 766             //        possible infinite looping too.
 767
 768             wxLogError(_("Failed to open temporary file."));
 769
 770             path.clear();
 771         }
 772     }
 773
 774     return path;
 775 }
 776
 777 // ----------------------------------------------------------------------------
 778 // directory operations
 779 // ----------------------------------------------------------------------------
 780
 781 bool wxFileName::Mkdir( int perm, int flags )
 782 {
 783     return wxFileName::Mkdir( GetFullPath(), perm, flags );
 784 }
 785
 786 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
 787 {
 788     if ( flags & wxPATH_MKDIR_FULL )
 789     {
 790         // split the path in components
 791         wxFileName filename;
 792         filename.AssignDir(dir);
 793
 794         wxString currPath;
 795         if ( filename.HasVolume())
 796         {
 797             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
 798         }
 799
 800         wxArrayString dirs = filename.GetDirs();
 801         size_t count = dirs.GetCount();
 802         for ( size_t i = 0; i < count; i++ )
 803         {
 804             if ( i > 0 ||
 805 #if defined(__WXMAC__) && !defined(__DARWIN__)
 806                         // relative pathnames are exactely the other way round under mac...
 807                 !filename.IsAbsolute()
 808 #else
 809                 filename.IsAbsolute()
 810 #endif
 811             )
 812                 currPath += wxFILE_SEP_PATH;
 813             currPath += dirs[i];
 814
 815             if (!DirExists(currPath))
 816             {
 817                 if (!wxMkdir(currPath, perm))
 818                 {
 819                     // no need to try creating further directories
 820                     return false;
 821                 }
 822             }
 823         }
 824
 825         return true;
 826
 827     }
 828
 829     return ::wxMkdir( dir, perm );
 830 }
 831
 832 bool wxFileName::Rmdir()
 833 {
 834     return wxFileName::Rmdir( GetFullPath() );
 835 }
 836
 837 bool wxFileName::Rmdir( const wxString &dir )
 838 {
 839     return ::wxRmdir( dir );
 840 }
 841
 842 // ----------------------------------------------------------------------------
 843 // path normalization
 844 // ----------------------------------------------------------------------------
 845
 846 bool wxFileName::Normalize(int flags,
 847                            const wxString& cwd,
 848                            wxPathFormat format)
 849 {
 850     // the existing path components
 851     wxArrayString dirs = GetDirs();
 852
 853     // the path to prepend in front to make the path absolute
 854     wxFileName curDir;
 855
 856     format = GetFormat(format);
 857
 858     // make the path absolute
 859     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
 860     {
 861         if ( cwd.empty() )
 862         {
 863             curDir.AssignCwd(GetVolume());
 864         }
 865         else // cwd provided
 866         {
 867             curDir.AssignDir(cwd);
 868         }
 869
 870         // the path may be not absolute because it doesn't have the volume name
 871         // but in this case we shouldn't modify the directory components of it
 872         // but just set the current volume
 873         if ( !HasVolume() && curDir.HasVolume() )
 874         {
 875             SetVolume(curDir.GetVolume());
 876
 877             if ( !m_relative )
 878             {
 879                 // yes, it was the case - we don't need curDir then
 880                 curDir.Clear();
 881             }
 882         }
 883     }
 884
 885     // handle ~ stuff under Unix only
 886     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 887     {
 888         if ( !dirs.IsEmpty() )
 889         {
 890             wxString dir = dirs[0u];
 891             if ( !dir.empty() && dir[0u] == _T('~') )
 892             {
 893                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 894
 895                 dirs.RemoveAt(0u);
 896             }
 897         }
 898     }
 899
 900     // transform relative path into abs one
 901     if ( curDir.IsOk() )
 902     {
 903         wxArrayString dirsNew = curDir.GetDirs();
 904         size_t count = dirs.GetCount();
 905         for ( size_t n = 0; n < count; n++ )
 906         {
 907             dirsNew.Add(dirs[n]);
 908         }
 909
 910         dirs = dirsNew;
 911     }
 912
 913     // now deal with ".", ".." and the rest
 914     m_dirs.Empty();
 915     size_t count = dirs.GetCount();
 916     for ( size_t n = 0; n < count; n++ )
 917     {
 918         wxString dir = dirs[n];
 919
 920         if ( flags & wxPATH_NORM_DOTS )
 921         {
 922             if ( dir == wxT(".") )
 923             {
 924                 // just ignore
 925                 continue;
 926             }
 927
 928             if ( dir == wxT("..") )
 929             {
 930                 if ( m_dirs.IsEmpty() )
 931                 {
 932                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 933                                GetFullPath().c_str());
 934                     return false;
 935                 }
 936
 937                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 938                 continue;
 939             }
 940         }
 941
 942         if ( flags & wxPATH_NORM_ENV_VARS )
 943         {
 944             dir = wxExpandEnvVars(dir);
 945         }
 946
 947         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 948         {
 949             dir.MakeLower();
 950         }
 951
 952         m_dirs.Add(dir);
 953     }
 954
 955     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 956     {
 957         // VZ: expand env vars here too?
 958
 959         m_name.MakeLower();
 960         m_ext.MakeLower();
 961     }
 962
 963     // we do have the path now
 964     //
 965     // NB: need to do this before (maybe) calling Assign() below
 966     m_relative = false;
 967
 968 #if defined(__WIN32__)
 969     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 970     {
 971         Assign(GetLongPath());
 972     }
 973 #endif // Win32
 974
 975     return true;
 976 }
 977
 978 // ----------------------------------------------------------------------------
 979 // absolute/relative paths
 980 // ----------------------------------------------------------------------------
 981
 982 bool wxFileName::IsAbsolute(wxPathFormat format) const
 983 {
 984     // if our path doesn't start with a path separator, it's not an absolute
 985     // path
 986     if ( m_relative )
 987         return false;
 988
 989     if ( !GetVolumeSeparator(format).empty() )
 990     {
 991         // this format has volumes and an absolute path must have one, it's not
 992         // enough to have the full path to bean absolute file under Windows
 993         if ( GetVolume().empty() )
 994             return false;
 995     }
 996
 997     return true;
 998 }
 999
1000 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
1001 {
1002     wxFileName fnBase = wxFileName::DirName(pathBase, format);
1003
1004     // get cwd only once - small time saving
1005     wxString cwd = wxGetCwd();
1006     Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1007     fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1008
1009     bool withCase = IsCaseSensitive(format);
1010
1011     // we can't do anything if the files live on different volumes
1012     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
1013     {
1014         // nothing done
1015         return false;
1016     }
1017
1018     // same drive, so we don't need our volume
1019     m_volume.clear();
1020
1021     // remove common directories starting at the top
1022     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
1023                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
1024     {
1025         m_dirs.RemoveAt(0);
1026         fnBase.m_dirs.RemoveAt(0);
1027     }
1028
1029     // add as many ".." as needed
1030     size_t count = fnBase.m_dirs.GetCount();
1031     for ( size_t i = 0; i < count; i++ )
1032     {
1033         m_dirs.Insert(wxT(".."), 0u);
1034     }
1035
1036     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
1037     {
1038         // a directory made relative with respect to itself is '.' under Unix
1039         // and DOS, by definition (but we don't have to insert "./" for the
1040         // files)
1041         if ( m_dirs.IsEmpty() && IsDir() )
1042         {
1043             m_dirs.Add(_T('.'));
1044         }
1045     }
1046
1047     m_relative = true;
1048
1049     // we were modified
1050     return true;
1051 }
1052
1053 // ----------------------------------------------------------------------------
1054 // filename kind tests
1055 // ----------------------------------------------------------------------------
1056
1057 bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
1058 {
1059     wxFileName fn1 = *this,
1060                fn2 = filepath;
1061
1062     // get cwd only once - small time saving
1063     wxString cwd = wxGetCwd();
1064     fn1.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1065     fn2.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1066
1067     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1068         return true;
1069
1070     // TODO: compare inodes for Unix, this works even when filenames are
1071     //       different but files are the same (symlinks) (VZ)
1072
1073     return false;
1074 }
1075
1076 /* static */
1077 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1078 {
1079     // only Unix filenames are truely case-sensitive
1080     return GetFormat(format) == wxPATH_UNIX;
1081 }
1082
1083 /* static */
1084 wxString wxFileName::GetForbiddenChars(wxPathFormat format)
1085 {
1086     // Inits to forbidden characters that are common to (almost) all platforms.
1087     wxString strForbiddenChars = wxT("*?");
1088
1089     // If asserts, wxPathFormat has been changed. In case of a new path format
1090     // addition, the following code might have to be updated.
1091     wxCOMPILE_TIME_ASSERT(wxPATH_MAX == 5, wxPathFormatChanged);
1092     switch ( GetFormat(format) )
1093     {
1094         default :
1095             wxFAIL_MSG( wxT("Unknown path format") );
1096             // !! Fall through !!
1097
1098         case wxPATH_UNIX:
1099             break;
1100
1101         case wxPATH_MAC:
1102             // On a Mac even names with * and ? are allowed (Tested with OS
1103             // 9.2.1 and OS X 10.2.5)
1104             strForbiddenChars = wxEmptyString;
1105             break;
1106
1107         case wxPATH_DOS:
1108             strForbiddenChars += wxT("\\/:\"<>|");
1109             break;
1110
1111         case wxPATH_VMS:
1112             break;
1113     }
1114
1115     return strForbiddenChars;
1116 }
1117
1118 /* static */
1119 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
1120 {
1121     wxString sepVol;
1122
1123     if ( (GetFormat(format) == wxPATH_DOS) ||
1124          (GetFormat(format) == wxPATH_VMS) )
1125     {
1126         sepVol = wxFILE_SEP_DSK;
1127     }
1128     //else: leave empty
1129
1130     return sepVol;
1131 }
1132
1133 /* static */
1134 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1135 {
1136     wxString seps;
1137     switch ( GetFormat(format) )
1138     {
1139         case wxPATH_DOS:
1140             // accept both as native APIs do but put the native one first as
1141             // this is the one we use in GetFullPath()
1142             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1143             break;
1144
1145         default:
1146             wxFAIL_MSG( _T("Unknown wxPATH_XXX style") );
1147             // fall through
1148
1149         case wxPATH_UNIX:
1150             seps = wxFILE_SEP_PATH_UNIX;
1151             break;
1152
1153         case wxPATH_MAC:
1154             seps = wxFILE_SEP_PATH_MAC;
1155             break;
1156
1157         case wxPATH_VMS:
1158             seps = wxFILE_SEP_PATH_VMS;
1159             break;
1160     }
1161
1162     return seps;
1163 }
1164
1165 /* static */
1166 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1167 {
1168     // wxString::Find() doesn't work as expected with NUL - it will always find
1169     // it, so it is almost surely a bug if this function is called with NUL arg
1170     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
1171
1172     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1173 }
1174
1175 // ----------------------------------------------------------------------------
1176 // path components manipulation
1177 // ----------------------------------------------------------------------------
1178
1179 void wxFileName::AppendDir( const wxString &dir )
1180 {
1181     m_dirs.Add( dir );
1182 }
1183
1184 void wxFileName::PrependDir( const wxString &dir )
1185 {
1186     m_dirs.Insert( dir, 0 );
1187 }
1188
1189 void wxFileName::InsertDir( int before, const wxString &dir )
1190 {
1191     m_dirs.Insert( dir, before );
1192 }
1193
1194 void wxFileName::RemoveDir( int pos )
1195 {
1196     m_dirs.RemoveAt( (size_t)pos );
1197 }
1198
1199 // ----------------------------------------------------------------------------
1200 // accessors
1201 // ----------------------------------------------------------------------------
1202
1203 void wxFileName::SetFullName(const wxString& fullname)
1204 {
1205     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1206 }
1207
1208 wxString wxFileName::GetFullName() const
1209 {
1210     wxString fullname = m_name;
1211     if ( !m_ext.empty() )
1212     {
1213         fullname << wxFILE_SEP_EXT << m_ext;
1214     }
1215
1216     return fullname;
1217 }
1218
1219 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1220 {
1221     format = GetFormat( format );
1222
1223     wxString fullpath;
1224
1225     // return the volume with the path as well if requested
1226     if ( flags & wxPATH_GET_VOLUME )
1227     {
1228         fullpath += wxGetVolumeString(GetVolume(), format);
1229     }
1230
1231     // the leading character
1232     switch ( format )
1233     {
1234         case wxPATH_MAC:
1235             if ( m_relative )
1236                 fullpath += wxFILE_SEP_PATH_MAC;
1237             break;
1238
1239         case wxPATH_DOS:
1240             if (!m_relative)
1241                 fullpath += wxFILE_SEP_PATH_DOS;
1242             break;
1243
1244         default:
1245             wxFAIL_MSG( wxT("Unknown path format") );
1246             // fall through
1247
1248         case wxPATH_UNIX:
1249             if ( !m_relative )
1250             {
1251                 // normally the absolute file names starts with a slash with
1252                 // one exception: file names like "~/foo.bar" don't have it
1253                 if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1254                 {
1255                     fullpath += wxFILE_SEP_PATH_UNIX;
1256                 }
1257             }
1258             break;
1259
1260         case wxPATH_VMS:
1261             // no leading character here but use this place to unset
1262             // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense as,
1263             // if I understand correctly, there should never be a dot before
1264             // the closing bracket
1265             flags &= ~wxPATH_GET_SEPARATOR;
1266     }
1267
1268     // then concatenate all the path components using the path separator
1269     size_t dirCount = m_dirs.GetCount();
1270     if ( dirCount )
1271     {
1272         if ( format == wxPATH_VMS )
1273         {
1274             fullpath += wxT('[');
1275         }
1276
1277         for ( size_t i = 0; i < dirCount; i++ )
1278         {
1279             switch (format)
1280             {
1281                 case wxPATH_MAC:
1282                     if ( m_dirs[i] == wxT(".") )
1283                     {
1284                         // skip appending ':', this shouldn't be done in this
1285                         // case as "::" is interpreted as ".." under Unix
1286                         continue;
1287                     }
1288
1289                     // convert back from ".." to nothing
1290                     if ( m_dirs[i] != wxT("..") )
1291                          fullpath += m_dirs[i];
1292                     break;
1293
1294                 default:
1295                     wxFAIL_MSG( wxT("Unexpected path format") );
1296                     // still fall through
1297
1298                 case wxPATH_DOS:
1299                 case wxPATH_UNIX:
1300                     fullpath += m_dirs[i];
1301                     break;
1302
1303                 case wxPATH_VMS:
1304                     // TODO: What to do with ".." under VMS
1305
1306                     // convert back from ".." to nothing
1307                     if ( m_dirs[i] != wxT("..") )
1308                         fullpath += m_dirs[i];
1309                     break;
1310             }
1311
1312             if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
1313                 fullpath += GetPathSeparator(format);
1314         }
1315
1316         if ( format == wxPATH_VMS )
1317         {
1318             fullpath += wxT(']');
1319         }
1320     }
1321
1322     return fullpath;
1323 }
1324
1325 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1326 {
1327     // we already have a function to get the path
1328     wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
1329                                 format);
1330
1331     // now just add the file name and extension to it
1332     fullpath += GetFullName();
1333
1334     return fullpath;
1335 }
1336
1337 // Return the short form of the path (returns identity on non-Windows platforms)
1338 wxString wxFileName::GetShortPath() const
1339 {
1340 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
1341     wxString path(GetFullPath());
1342     wxString pathOut;
1343     DWORD sz = ::GetShortPathName(path, NULL, 0);
1344     bool ok = sz != 0;
1345     if ( ok )
1346     {
1347         ok = ::GetShortPathName
1348                (
1349                 path,
1350                 wxStringBuffer(pathOut, sz),
1351                 sz
1352                ) != 0;
1353     }
1354     if (ok)
1355         return pathOut;
1356
1357     return path;
1358 #else
1359     return GetFullPath();
1360 #endif
1361 }
1362
1363 // Return the long form of the path (returns identity on non-Windows platforms)
1364 wxString wxFileName::GetLongPath() const
1365 {
1366     wxString pathOut,
1367              path = GetFullPath();
1368
1369 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1370     bool success = false;
1371
1372 #if wxUSE_DYNAMIC_LOADER
1373     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1374
1375     static bool s_triedToLoad = false;
1376
1377     if ( !s_triedToLoad )
1378     {
1379         // suppress the errors about missing GetLongPathName[AW]
1380         wxLogNull noLog;
1381
1382         s_triedToLoad = true;
1383         wxDynamicLibrary dllKernel(_T("kernel32"));
1384         if ( dllKernel.IsLoaded() )
1385         {
1386             // may succeed or fail depending on the Windows version
1387             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1388 #ifdef _UNICODE
1389             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1390 #else
1391             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1392 #endif
1393
1394             if ( s_pfnGetLongPathName )
1395             {
1396                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1397                 bool ok = dwSize > 0;
1398
1399                 if ( ok )
1400                 {
1401                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1402                     ok = sz != 0;
1403                     if ( ok )
1404                     {
1405                         ok = (*s_pfnGetLongPathName)
1406                                 (
1407                                 path,
1408                                 wxStringBuffer(pathOut, sz),
1409                                 sz
1410                                 ) != 0;
1411                         success = true;
1412                     }
1413                 }
1414             }
1415         }
1416     }
1417
1418     if (success)
1419         return pathOut;
1420 #endif // wxUSE_DYNAMIC_LOADER
1421
1422     if (!success)
1423     {
1424         // The OS didn't support GetLongPathName, or some other error.
1425         // We need to call FindFirstFile on each component in turn.
1426
1427         WIN32_FIND_DATA findFileData;
1428         HANDLE hFind;
1429
1430         if ( HasVolume() )
1431             pathOut = GetVolume() +
1432                       GetVolumeSeparator(wxPATH_DOS) +
1433                       GetPathSeparator(wxPATH_DOS);
1434         else
1435             pathOut = wxEmptyString;
1436
1437         wxArrayString dirs = GetDirs();
1438         dirs.Add(GetFullName());
1439
1440         wxString tmpPath;
1441
1442         size_t count = dirs.GetCount();
1443         for ( size_t i = 0; i < count; i++ )
1444         {
1445             // We're using pathOut to collect the long-name path, but using a
1446             // temporary for appending the last path component which may be
1447             // short-name
1448             tmpPath = pathOut + dirs[i];
1449
1450             if ( tmpPath.empty() )
1451                 continue;
1452
1453             // can't see this being necessary? MF
1454             if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
1455             {
1456                 // Can't pass a drive and root dir to FindFirstFile,
1457                 // so continue to next dir
1458                 tmpPath += wxFILE_SEP_PATH;
1459                 pathOut = tmpPath;
1460                 continue;
1461             }
1462
1463             hFind = ::FindFirstFile(tmpPath, &findFileData);
1464             if (hFind == INVALID_HANDLE_VALUE)
1465             {
1466                 // Error: most likely reason is that path doesn't exist, so
1467                 // append any unprocessed parts and return
1468                 for ( i += 1; i < count; i++ )
1469                     tmpPath += wxFILE_SEP_PATH + dirs[i];
1470
1471                 return tmpPath;
1472             }
1473
1474             pathOut += findFileData.cFileName;
1475             if ( (i < (count-1)) )
1476                 pathOut += wxFILE_SEP_PATH;
1477
1478             ::FindClose(hFind);
1479         }
1480     }
1481 #else // !Win32
1482     pathOut = path;
1483 #endif // Win32/!Win32
1484
1485     return pathOut;
1486 }
1487
1488 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1489 {
1490     if (format == wxPATH_NATIVE)
1491     {
1492 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1493         format = wxPATH_DOS;
1494 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1495         format = wxPATH_MAC;
1496 #elif defined(__VMS)
1497         format = wxPATH_VMS;
1498 #else
1499         format = wxPATH_UNIX;
1500 #endif
1501     }
1502     return format;
1503 }
1504
1505 // ----------------------------------------------------------------------------
1506 // path splitting function
1507 // ----------------------------------------------------------------------------
1508
1509 /* static */
1510 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1511                            wxString *pstrVolume,
1512                            wxString *pstrPath,
1513                            wxString *pstrName,
1514                            wxString *pstrExt,
1515                            wxPathFormat format)
1516 {
1517     format = GetFormat(format);
1518
1519     wxString fullpath = fullpathWithVolume;
1520
1521     // under VMS the end of the path is ']', not the path separator used to
1522     // separate the components
1523     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1524                                             : GetPathSeparators(format);
1525
1526     // special Windows UNC paths hack: transform \\share\path into share:path
1527     if ( format == wxPATH_DOS )
1528     {
1529         if ( fullpath.length() >= 4 &&
1530                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1531                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1532         {
1533             fullpath.erase(0, 2);
1534
1535             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1536             if ( posFirstSlash != wxString::npos )
1537             {
1538                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1539
1540                 // UNC paths are always absolute, right? (FIXME)
1541                 fullpath.insert(posFirstSlash + 1, 1, wxFILE_SEP_PATH_DOS);
1542             }
1543         }
1544     }
1545
1546     // We separate the volume here
1547     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1548     {
1549         wxString sepVol = GetVolumeSeparator(format);
1550
1551         size_t posFirstColon = fullpath.find_first_of(sepVol);
1552         if ( posFirstColon != wxString::npos )
1553         {
1554             if ( pstrVolume )
1555             {
1556                 *pstrVolume = fullpath.Left(posFirstColon);
1557             }
1558
1559             // remove the volume name and the separator from the full path
1560             fullpath.erase(0, posFirstColon + sepVol.length());
1561         }
1562     }
1563
1564     // find the positions of the last dot and last path separator in the path
1565     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1566     size_t posLastSlash = fullpath.find_last_of(sepPath);
1567
1568     if ( (posLastDot != wxString::npos) &&
1569             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1570     {
1571         if ( (posLastDot == 0) ||
1572              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1573         {
1574             // under Unix and VMS, dot may be (and commonly is) the first
1575             // character of the filename, don't treat the entire filename as
1576             // extension in this case
1577             posLastDot = wxString::npos;
1578         }
1579     }
1580
1581     // if we do have a dot and a slash, check that the dot is in the name part
1582     if ( (posLastDot != wxString::npos) &&
1583          (posLastSlash != wxString::npos) &&
1584          (posLastDot < posLastSlash) )
1585     {
1586         // the dot is part of the path, not the start of the extension
1587         posLastDot = wxString::npos;
1588     }
1589
1590     // now fill in the variables provided by user
1591     if ( pstrPath )
1592     {
1593         if ( posLastSlash == wxString::npos )
1594         {
1595             // no path at all
1596             pstrPath->Empty();
1597         }
1598         else
1599         {
1600             // take everything up to the path separator but take care to make
1601             // the path equal to something like '/', not empty, for the files
1602             // immediately under root directory
1603             size_t len = posLastSlash;
1604
1605             // this rule does not apply to mac since we do not start with colons (sep)
1606             // except for relative paths
1607             if ( !len && format != wxPATH_MAC)
1608                 len++;
1609
1610             *pstrPath = fullpath.Left(len);
1611
1612             // special VMS hack: remove the initial bracket
1613             if ( format == wxPATH_VMS )
1614             {
1615                 if ( (*pstrPath)[0u] == _T('[') )
1616                     pstrPath->erase(0, 1);
1617             }
1618         }
1619     }
1620
1621     if ( pstrName )
1622     {
1623         // take all characters starting from the one after the last slash and
1624         // up to, but excluding, the last dot
1625         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1626         size_t count;
1627         if ( posLastDot == wxString::npos )
1628         {
1629             // take all until the end
1630             count = wxString::npos;
1631         }
1632         else if ( posLastSlash == wxString::npos )
1633         {
1634             count = posLastDot;
1635         }
1636         else // have both dot and slash
1637         {
1638             count = posLastDot - posLastSlash - 1;
1639         }
1640
1641         *pstrName = fullpath.Mid(nStart, count);
1642     }
1643
1644     if ( pstrExt )
1645     {
1646         if ( posLastDot == wxString::npos )
1647         {
1648             // no extension
1649             pstrExt->Empty();
1650         }
1651         else
1652         {
1653             // take everything after the dot
1654             *pstrExt = fullpath.Mid(posLastDot + 1);
1655         }
1656     }
1657 }
1658
1659 /* static */
1660 void wxFileName::SplitPath(const wxString& fullpath,
1661                            wxString *path,
1662                            wxString *name,
1663                            wxString *ext,
1664                            wxPathFormat format)
1665 {
1666     wxString volume;
1667     SplitPath(fullpath, &volume, path, name, ext, format);
1668
1669     if ( path )
1670     {
1671         path->Prepend(wxGetVolumeString(volume, format));
1672     }
1673 }
1674
1675 // ----------------------------------------------------------------------------
1676 // time functions
1677 // ----------------------------------------------------------------------------
1678
1679 #if wxUSE_DATETIME
1680
1681 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
1682                           const wxDateTime *dtMod,
1683                           const wxDateTime *dtCreate)
1684 {
1685 #if defined(__WIN32__)
1686     if ( IsDir() )
1687     {
1688         // VZ: please let me know how to do this if you can
1689         wxFAIL_MSG( _T("SetTimes() not implemented for the directories") );
1690     }
1691     else // file
1692     {
1693         wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
1694         if ( fh.IsOk() )
1695         {
1696             FILETIME ftAccess, ftCreate, ftWrite;
1697
1698             if ( dtCreate )
1699                 ConvertWxToFileTime(&ftCreate, *dtCreate);
1700             if ( dtAccess )
1701                 ConvertWxToFileTime(&ftAccess, *dtAccess);
1702             if ( dtMod )
1703                 ConvertWxToFileTime(&ftWrite, *dtMod);
1704
1705             if ( ::SetFileTime(fh,
1706                                dtCreate ? &ftCreate : NULL,
1707                                dtAccess ? &ftAccess : NULL,
1708                                dtMod ? &ftWrite : NULL) )
1709             {
1710                 return true;
1711             }
1712         }
1713     }
1714 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1715     if ( !dtAccess && !dtMod )
1716     {
1717         // can't modify the creation time anyhow, don't try
1718         return true;
1719     }
1720
1721     // if dtAccess or dtMod is not specified, use the other one (which must be
1722     // non NULL because of the test above) for both times
1723     utimbuf utm;
1724     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1725     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1726     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
1727     {
1728         return true;
1729     }
1730 #else // other platform
1731 #endif // platforms
1732
1733     wxLogSysError(_("Failed to modify file times for '%s'"),
1734                   GetFullPath().c_str());
1735
1736     return false;
1737 }
1738
1739 bool wxFileName::Touch()
1740 {
1741 #if defined(__UNIX_LIKE__)
1742     // under Unix touching file is simple: just pass NULL to utime()
1743     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
1744     {
1745         return true;
1746     }
1747
1748     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1749
1750     return false;
1751 #else // other platform
1752     wxDateTime dtNow = wxDateTime::Now();
1753
1754     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
1755 #endif // platforms
1756 }
1757
1758 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1759                           wxDateTime *dtMod,
1760                           wxDateTime *dtCreate) const
1761 {
1762 #if defined(__WIN32__)
1763     // we must use different methods for the files and directories under
1764     // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
1765     // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
1766     // not 9x
1767     bool ok;
1768     FILETIME ftAccess, ftCreate, ftWrite;
1769     if ( IsDir() )
1770     {
1771         // implemented in msw/dir.cpp
1772         extern bool wxGetDirectoryTimes(const wxString& dirname,
1773                                         FILETIME *, FILETIME *, FILETIME *);
1774
1775         // we should pass the path without the trailing separator to
1776         // wxGetDirectoryTimes()
1777         ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
1778                                  &ftAccess, &ftCreate, &ftWrite);
1779     }
1780     else // file
1781     {
1782         wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
1783         if ( fh.IsOk() )
1784         {
1785             ok = ::GetFileTime(fh,
1786                                dtCreate ? &ftCreate : NULL,
1787                                dtAccess ? &ftAccess : NULL,
1788                                dtMod ? &ftWrite : NULL) != 0;
1789         }
1790         else
1791         {
1792             ok = false;
1793         }
1794     }
1795
1796     if ( ok )
1797     {
1798         if ( dtCreate )
1799             ConvertFileTimeToWx(dtCreate, ftCreate);
1800         if ( dtAccess )
1801             ConvertFileTimeToWx(dtAccess, ftAccess);
1802         if ( dtMod )
1803             ConvertFileTimeToWx(dtMod, ftWrite);
1804
1805         return true;
1806     }
1807 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1808     wxStructStat stBuf;
1809     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
1810     {
1811         if ( dtAccess )
1812             dtAccess->Set(stBuf.st_atime);
1813         if ( dtMod )
1814             dtMod->Set(stBuf.st_mtime);
1815         if ( dtCreate )
1816             dtCreate->Set(stBuf.st_ctime);
1817
1818         return true;
1819     }
1820 #else // other platform
1821 #endif // platforms
1822
1823     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1824                   GetFullPath().c_str());
1825
1826     return false;
1827 }
1828
1829 #endif // wxUSE_DATETIME
1830
1831 #ifdef __WXMAC__
1832
1833 const short kMacExtensionMaxLength = 16 ;
1834 class MacDefaultExtensionRecord
1835 {
1836 public :
1837   MacDefaultExtensionRecord()
1838   {
1839     m_ext[0] = 0 ;
1840     m_type = m_creator = NULL ;
1841   }
1842   MacDefaultExtensionRecord( const MacDefaultExtensionRecord& from )
1843   {
1844     wxStrcpy( m_ext , from.m_ext ) ;
1845     m_type = from.m_type ;
1846     m_creator = from.m_creator ;
1847   }
1848   MacDefaultExtensionRecord( const wxChar * extension , OSType type , OSType creator )
1849   {
1850     wxStrncpy( m_ext , extension , kMacExtensionMaxLength ) ;
1851     m_ext[kMacExtensionMaxLength] = 0 ;
1852     m_type = type ;
1853     m_creator = creator ;
1854   }
1855   wxChar m_ext[kMacExtensionMaxLength] ;
1856   OSType m_type ;
1857   OSType m_creator ;
1858 }  ;
1859
1860 #include "wx/dynarray.h"
1861 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
1862
1863 bool gMacDefaultExtensionsInited = false ;
1864
1865 #include "wx/arrimpl.cpp"
1866
1867 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray) ;
1868
1869 MacDefaultExtensionArray gMacDefaultExtensions ;
1870
1871 static void MacEnsureDefaultExtensionsLoaded()
1872 {
1873   if ( !gMacDefaultExtensionsInited )
1874   {
1875
1876     // load the default extensions
1877     MacDefaultExtensionRecord defaults[1] =
1878     {
1879       MacDefaultExtensionRecord( wxT("txt") , 'TEXT' , 'ttxt' ) ,
1880
1881     } ;
1882     // we could load the pc exchange prefs here too
1883
1884     for ( size_t i = 0 ; i < WXSIZEOF( defaults ) ; ++i )
1885     {
1886       gMacDefaultExtensions.Add( defaults[i] ) ;
1887     }
1888     gMacDefaultExtensionsInited = true ;
1889   }
1890 }
1891 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
1892 {
1893   FInfo fndrInfo ;
1894   FSSpec spec ;
1895   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1896   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1897   wxCHECK( err == noErr , false ) ;
1898
1899   fndrInfo.fdType = type ;
1900   fndrInfo.fdCreator = creator ;
1901   FSpSetFInfo( &spec , &fndrInfo ) ;
1902   return true ;
1903 }
1904
1905 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
1906 {
1907   FInfo fndrInfo ;
1908   FSSpec spec ;
1909   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1910   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1911   wxCHECK( err == noErr , false ) ;
1912
1913   *type = fndrInfo.fdType ;
1914   *creator = fndrInfo.fdCreator ;
1915   return true ;
1916 }
1917
1918 bool wxFileName::MacSetDefaultTypeAndCreator()
1919 {
1920     wxUint32 type , creator ;
1921     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
1922       &creator ) )
1923     {
1924         return MacSetTypeAndCreator( type , creator ) ;
1925     }
1926     return false;
1927 }
1928
1929 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
1930 {
1931   MacEnsureDefaultExtensionsLoaded() ;
1932   wxString extl = ext.Lower() ;
1933   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
1934   {
1935     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
1936     {
1937       *type = gMacDefaultExtensions.Item(i).m_type ;
1938       *creator = gMacDefaultExtensions.Item(i).m_creator ;
1939       return true ;
1940     }
1941   }
1942   return false ;
1943 }
1944
1945 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
1946 {
1947   MacEnsureDefaultExtensionsLoaded() ;
1948   MacDefaultExtensionRecord rec ;
1949   rec.m_type = type ;
1950   rec.m_creator = creator ;
1951   wxStrncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
1952   gMacDefaultExtensions.Add( rec ) ;
1953 }
1954 #endif