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     // we need to copy the path to the buffer in which mkstemp() can modify it
 642     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 643
 644     // cast is safe because the string length doesn't change
 645     int fdTemp = mkstemp( (char*)(const char*) buf );
 646     if ( fdTemp == -1 )
 647     {
 648         // this might be not necessary as mkstemp() on most systems should have
 649         // already done it but it doesn't hurt neither...
 650         path.clear();
 651     }
 652     else // mkstemp() succeeded
 653     {
 654         path = wxConvFile.cMB2WX( (const char*) buf );
 655
 656         // avoid leaking the fd
 657         if ( fileTemp )
 658         {
 659             fileTemp->Attach(fdTemp);
 660         }
 661         else
 662         {
 663             close(fdTemp);
 664         }
 665     }
 666 #else // !HAVE_MKSTEMP
 667
 668 #ifdef HAVE_MKTEMP
 669     // same as above
 670     path += _T("XXXXXX");
 671
 672     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 673     if ( !mktemp( (const char*) buf ) )
 674     {
 675         path.clear();
 676     }
 677     else
 678     {
 679         path = wxConvFile.cMB2WX( (const char*) buf );
 680     }
 681 #else // !HAVE_MKTEMP (includes __DOS__)
 682     // generate the unique file name ourselves
 683     #ifndef __DOS__
 684     path << (unsigned int)getpid();
 685     #endif
 686
 687     wxString pathTry;
 688
 689     static const size_t numTries = 1000;
 690     for ( size_t n = 0; n < numTries; n++ )
 691     {
 692         // 3 hex digits is enough for numTries == 1000 < 4096
 693         pathTry = path + wxString::Format(_T("%.03x"), n);
 694         if ( !wxFile::Exists(pathTry) )
 695         {
 696             break;
 697         }
 698
 699         pathTry.clear();
 700     }
 701
 702     path = pathTry;
 703 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 704
 705     if ( !path.empty() )
 706     {
 707     }
 708 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 709
 710 #endif // Windows/!Windows
 711
 712     if ( path.empty() )
 713     {
 714         wxLogSysError(_("Failed to create a temporary file name"));
 715     }
 716     else if ( fileTemp && !fileTemp->IsOpened() )
 717     {
 718         // open the file - of course, there is a race condition here, this is
 719         // why we always prefer using mkstemp()...
 720         //
 721         // NB: GetTempFileName() under Windows creates the file, so using
 722         //     write_excl there would fail
 723         if ( !fileTemp->Open(path,
 724 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 725                              wxFile::write,
 726 #else
 727                              wxFile::write_excl,
 728 #endif
 729                              wxS_IRUSR | wxS_IWUSR) )
 730         {
 731             // FIXME: If !ok here should we loop and try again with another
 732             //        file name?  That is the standard recourse if open(O_EXCL)
 733             //        fails, though of course it should be protected against
 734             //        possible infinite looping too.
 735
 736             wxLogError(_("Failed to open temporary file."));
 737
 738             path.clear();
 739         }
 740     }
 741
 742     return path;
 743 }
 744
 745 // ----------------------------------------------------------------------------
 746 // directory operations
 747 // ----------------------------------------------------------------------------
 748
 749 bool wxFileName::Mkdir( int perm, int flags )
 750 {
 751     return wxFileName::Mkdir( GetFullPath(), perm, flags );
 752 }
 753
 754 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
 755 {
 756     if ( flags & wxPATH_MKDIR_FULL )
 757     {
 758         // split the path in components
 759         wxFileName filename;
 760         filename.AssignDir(dir);
 761
 762         wxString currPath;
 763         if ( filename.HasVolume())
 764         {
 765             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
 766         }
 767
 768         wxArrayString dirs = filename.GetDirs();
 769         size_t count = dirs.GetCount();
 770         for ( size_t i = 0; i < count; i++ )
 771         {
 772             if ( i > 0 || filename.IsAbsolute() )
 773                 currPath += wxFILE_SEP_PATH;
 774             currPath += dirs[i];
 775
 776             if (!DirExists(currPath))
 777             {
 778                 if (!wxMkdir(currPath, perm))
 779                 {
 780                     // no need to try creating further directories
 781                     return FALSE;
 782                 }
 783             }
 784         }
 785
 786         return TRUE;
 787
 788     }
 789
 790     return ::wxMkdir( dir, perm );
 791 }
 792
 793 bool wxFileName::Rmdir()
 794 {
 795     return wxFileName::Rmdir( GetFullPath() );
 796 }
 797
 798 bool wxFileName::Rmdir( const wxString &dir )
 799 {
 800     return ::wxRmdir( dir );
 801 }
 802
 803 // ----------------------------------------------------------------------------
 804 // path normalization
 805 // ----------------------------------------------------------------------------
 806
 807 bool wxFileName::Normalize(int flags,
 808                            const wxString& cwd,
 809                            wxPathFormat format)
 810 {
 811     // the existing path components
 812     wxArrayString dirs = GetDirs();
 813
 814     // the path to prepend in front to make the path absolute
 815     wxFileName curDir;
 816
 817     format = GetFormat(format);
 818
 819     // make the path absolute
 820     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
 821     {
 822         if ( cwd.empty() )
 823         {
 824             curDir.AssignCwd(GetVolume());
 825         }
 826         else // cwd provided
 827         {
 828             curDir.AssignDir(cwd);
 829         }
 830
 831         // the path may be not absolute because it doesn't have the volume name
 832         // but in this case we shouldn't modify the directory components of it
 833         // but just set the current volume
 834         if ( !HasVolume() && curDir.HasVolume() )
 835         {
 836             SetVolume(curDir.GetVolume());
 837
 838             if ( !m_relative )
 839             {
 840                 // yes, it was the case - we don't need curDir then
 841                 curDir.Clear();
 842             }
 843         }
 844     }
 845
 846     // handle ~ stuff under Unix only
 847     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 848     {
 849         if ( !dirs.IsEmpty() )
 850         {
 851             wxString dir = dirs[0u];
 852             if ( !dir.empty() && dir[0u] == _T('~') )
 853             {
 854                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 855
 856                 dirs.RemoveAt(0u);
 857             }
 858         }
 859     }
 860
 861     // transform relative path into abs one
 862     if ( curDir.IsOk() )
 863     {
 864         wxArrayString dirsNew = curDir.GetDirs();
 865         size_t count = dirs.GetCount();
 866         for ( size_t n = 0; n < count; n++ )
 867         {
 868             dirsNew.Add(dirs[n]);
 869         }
 870
 871         dirs = dirsNew;
 872     }
 873
 874     // now deal with ".", ".." and the rest
 875     m_dirs.Empty();
 876     size_t count = dirs.GetCount();
 877     for ( size_t n = 0; n < count; n++ )
 878     {
 879         wxString dir = dirs[n];
 880
 881         if ( flags & wxPATH_NORM_DOTS )
 882         {
 883             if ( dir == wxT(".") )
 884             {
 885                 // just ignore
 886                 continue;
 887             }
 888
 889             if ( dir == wxT("..") )
 890             {
 891                 if ( m_dirs.IsEmpty() )
 892                 {
 893                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 894                                GetFullPath().c_str());
 895                     return FALSE;
 896                 }
 897
 898                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 899                 continue;
 900             }
 901         }
 902
 903         if ( flags & wxPATH_NORM_ENV_VARS )
 904         {
 905             dir = wxExpandEnvVars(dir);
 906         }
 907
 908         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 909         {
 910             dir.MakeLower();
 911         }
 912
 913         m_dirs.Add(dir);
 914     }
 915
 916     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 917     {
 918         // VZ: expand env vars here too?
 919
 920         m_name.MakeLower();
 921         m_ext.MakeLower();
 922     }
 923
 924     // we do have the path now
 925     //
 926     // NB: need to do this before (maybe) calling Assign() below
 927     m_relative = FALSE;
 928
 929 #if defined(__WIN32__)
 930     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 931     {
 932         Assign(GetLongPath());
 933     }
 934 #endif // Win32
 935
 936     return TRUE;
 937 }
 938
 939 // ----------------------------------------------------------------------------
 940 // absolute/relative paths
 941 // ----------------------------------------------------------------------------
 942
 943 bool wxFileName::IsAbsolute(wxPathFormat format) const
 944 {
 945     // if our path doesn't start with a path separator, it's not an absolute
 946     // path
 947     if ( m_relative )
 948         return FALSE;
 949
 950     if ( !GetVolumeSeparator(format).empty() )
 951     {
 952         // this format has volumes and an absolute path must have one, it's not
 953         // enough to have the full path to bean absolute file under Windows
 954         if ( GetVolume().empty() )
 955             return FALSE;
 956     }
 957
 958     return TRUE;
 959 }
 960
 961 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 962 {
 963     wxFileName fnBase(pathBase, format);
 964
 965     // get cwd only once - small time saving
 966     wxString cwd = wxGetCwd();
 967     Normalize(wxPATH_NORM_ALL, cwd, format);
 968     fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
 969
 970     bool withCase = IsCaseSensitive(format);
 971
 972     // we can't do anything if the files live on different volumes
 973     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 974     {
 975         // nothing done
 976         return FALSE;
 977     }
 978
 979     // same drive, so we don't need our volume
 980     m_volume.clear();
 981
 982     // remove common directories starting at the top
 983     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 984                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 985     {
 986         m_dirs.RemoveAt(0);
 987         fnBase.m_dirs.RemoveAt(0);
 988     }
 989
 990     // add as many ".." as needed
 991     size_t count = fnBase.m_dirs.GetCount();
 992     for ( size_t i = 0; i < count; i++ )
 993     {
 994         m_dirs.Insert(wxT(".."), 0u);
 995     }
 996
 997     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
 998     {
 999         // a directory made relative with respect to itself is '.' under Unix
1000         // and DOS, by definition (but we don't have to insert "./" for the
1001         // files)
1002         if ( m_dirs.IsEmpty() && IsDir() )
1003         {
1004             m_dirs.Add(_T('.'));
1005         }
1006     }
1007
1008     m_relative = TRUE;
1009
1010     // we were modified
1011     return TRUE;
1012 }
1013
1014 // ----------------------------------------------------------------------------
1015 // filename kind tests
1016 // ----------------------------------------------------------------------------
1017
1018 bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
1019 {
1020     wxFileName fn1 = *this,
1021                fn2 = filepath;
1022
1023     // get cwd only once - small time saving
1024     wxString cwd = wxGetCwd();
1025     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
1026     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
1027
1028     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1029         return TRUE;
1030
1031     // TODO: compare inodes for Unix, this works even when filenames are
1032     //       different but files are the same (symlinks) (VZ)
1033
1034     return FALSE;
1035 }
1036
1037 /* static */
1038 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1039 {
1040     // only Unix filenames are truely case-sensitive
1041     return GetFormat(format) == wxPATH_UNIX;
1042 }
1043
1044 /* static */
1045 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
1046 {
1047     wxString sepVol;
1048
1049     if ( (GetFormat(format) == wxPATH_DOS) ||
1050          (GetFormat(format) == wxPATH_VMS) )
1051     {
1052         sepVol = wxFILE_SEP_DSK;
1053     }
1054     //else: leave empty
1055
1056     return sepVol;
1057 }
1058
1059 /* static */
1060 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1061 {
1062     wxString seps;
1063     switch ( GetFormat(format) )
1064     {
1065         case wxPATH_DOS:
1066             // accept both as native APIs do but put the native one first as
1067             // this is the one we use in GetFullPath()
1068             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1069             break;
1070
1071         default:
1072             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
1073             // fall through
1074
1075         case wxPATH_UNIX:
1076             seps = wxFILE_SEP_PATH_UNIX;
1077             break;
1078
1079         case wxPATH_MAC:
1080             seps = wxFILE_SEP_PATH_MAC;
1081             break;
1082
1083         case wxPATH_VMS:
1084             seps = wxFILE_SEP_PATH_VMS;
1085             break;
1086     }
1087
1088     return seps;
1089 }
1090
1091 /* static */
1092 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1093 {
1094     // wxString::Find() doesn't work as expected with NUL - it will always find
1095     // it, so it is almost surely a bug if this function is called with NUL arg
1096     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
1097
1098     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1099 }
1100
1101 // ----------------------------------------------------------------------------
1102 // path components manipulation
1103 // ----------------------------------------------------------------------------
1104
1105 void wxFileName::AppendDir( const wxString &dir )
1106 {
1107     m_dirs.Add( dir );
1108 }
1109
1110 void wxFileName::PrependDir( const wxString &dir )
1111 {
1112     m_dirs.Insert( dir, 0 );
1113 }
1114
1115 void wxFileName::InsertDir( int before, const wxString &dir )
1116 {
1117     m_dirs.Insert( dir, before );
1118 }
1119
1120 void wxFileName::RemoveDir( int pos )
1121 {
1122     m_dirs.Remove( (size_t)pos );
1123 }
1124
1125 // ----------------------------------------------------------------------------
1126 // accessors
1127 // ----------------------------------------------------------------------------
1128
1129 void wxFileName::SetFullName(const wxString& fullname)
1130 {
1131     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1132 }
1133
1134 wxString wxFileName::GetFullName() const
1135 {
1136     wxString fullname = m_name;
1137     if ( !m_ext.empty() )
1138     {
1139         fullname << wxFILE_SEP_EXT << m_ext;
1140     }
1141
1142     return fullname;
1143 }
1144
1145 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1146 {
1147     format = GetFormat( format );
1148
1149     wxString fullpath;
1150
1151     // return the volume with the path as well if requested
1152     if ( flags & wxPATH_GET_VOLUME )
1153     {
1154         fullpath += wxGetVolumeString(GetVolume(), format);
1155     }
1156
1157     // the leading character
1158     switch ( format )
1159     {
1160         case wxPATH_MAC:
1161             if ( m_relative )
1162                 fullpath += wxFILE_SEP_PATH_MAC;
1163             break;
1164
1165         case wxPATH_DOS:
1166             if (!m_relative)
1167                 fullpath += wxFILE_SEP_PATH_DOS;
1168             break;
1169
1170         default:
1171             wxFAIL_MSG( _T("unknown path format") );
1172             // fall through
1173
1174         case wxPATH_UNIX:
1175             if ( !m_relative )
1176             {
1177                 // normally the absolute file names starts with a slash with
1178                 // one exception: file names like "~/foo.bar" don't have it
1179                 if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1180                 {
1181                     fullpath += wxFILE_SEP_PATH_UNIX;
1182                 }
1183             }
1184             break;
1185
1186         case wxPATH_VMS:
1187             // no leading character here but use this place to unset
1188             // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense as,
1189             // if I understand correctly, there should never be a dot before
1190             // the closing bracket
1191             flags &= ~wxPATH_GET_SEPARATOR;
1192     }
1193
1194     // then concatenate all the path components using the path separator
1195     size_t dirCount = m_dirs.GetCount();
1196     if ( dirCount )
1197     {
1198         if ( format == wxPATH_VMS )
1199         {
1200             fullpath += wxT('[');
1201         }
1202
1203         for ( size_t i = 0; i < dirCount; i++ )
1204         {
1205             switch (format)
1206             {
1207                 case wxPATH_MAC:
1208                     if ( m_dirs[i] == wxT(".") )
1209                     {
1210                         // skip appending ':', this shouldn't be done in this
1211                         // case as "::" is interpreted as ".." under Unix
1212                         continue;
1213                     }
1214
1215                     // convert back from ".." to nothing
1216                     if ( m_dirs[i] != wxT("..") )
1217                          fullpath += m_dirs[i];
1218                     break;
1219
1220                 default:
1221                     wxFAIL_MSG( wxT("unexpected path format") );
1222                     // still fall through
1223
1224                 case wxPATH_DOS:
1225                 case wxPATH_UNIX:
1226                     fullpath += m_dirs[i];
1227                     break;
1228
1229                 case wxPATH_VMS:
1230                     // TODO: What to do with ".." under VMS
1231
1232                     // convert back from ".." to nothing
1233                     if ( m_dirs[i] != wxT("..") )
1234                         fullpath += m_dirs[i];
1235                     break;
1236             }
1237
1238             if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
1239                 fullpath += GetPathSeparator(format);
1240         }
1241
1242         if ( format == wxPATH_VMS )
1243         {
1244             fullpath += wxT(']');
1245         }
1246     }
1247
1248     return fullpath;
1249 }
1250
1251 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1252 {
1253     // we already have a function to get the path
1254     wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
1255                                 format);
1256
1257     // now just add the file name and extension to it
1258     fullpath += GetFullName();
1259
1260     return fullpath;
1261 }
1262
1263 // Return the short form of the path (returns identity on non-Windows platforms)
1264 wxString wxFileName::GetShortPath() const
1265 {
1266 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1267     wxString path(GetFullPath());
1268     wxString pathOut;
1269     DWORD sz = ::GetShortPathName(path, NULL, 0);
1270     bool ok = sz != 0;
1271     if ( ok )
1272     {
1273         ok = ::GetShortPathName
1274                (
1275                 path,
1276                 pathOut.GetWriteBuf(sz),
1277                 sz
1278                ) != 0;
1279         pathOut.UngetWriteBuf();
1280     }
1281     if (ok)
1282         return pathOut;
1283
1284     return path;
1285 #else
1286     return GetFullPath();
1287 #endif
1288 }
1289
1290 // Return the long form of the path (returns identity on non-Windows platforms)
1291 wxString wxFileName::GetLongPath() const
1292 {
1293     wxString pathOut,
1294              path = GetFullPath();
1295
1296 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1297     bool success = FALSE;
1298
1299 #if wxUSE_DYNAMIC_LOADER
1300     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1301
1302     static bool s_triedToLoad = FALSE;
1303
1304     if ( !s_triedToLoad )
1305     {
1306         // suppress the errors about missing GetLongPathName[AW]
1307         wxLogNull noLog;
1308
1309         s_triedToLoad = TRUE;
1310         wxDynamicLibrary dllKernel(_T("kernel32"));
1311         if ( dllKernel.IsLoaded() )
1312         {
1313             // may succeed or fail depending on the Windows version
1314             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1315 #ifdef _UNICODE
1316             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1317 #else
1318             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1319 #endif
1320
1321             if ( s_pfnGetLongPathName )
1322             {
1323                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1324                 bool ok = dwSize > 0;
1325
1326                 if ( ok )
1327                 {
1328                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1329                     ok = sz != 0;
1330                     if ( ok )
1331                     {
1332                         ok = (*s_pfnGetLongPathName)
1333                                 (
1334                                 path,
1335                                 pathOut.GetWriteBuf(sz),
1336                                 sz
1337                                 ) != 0;
1338                         pathOut.UngetWriteBuf();
1339
1340                         success = TRUE;
1341                     }
1342                 }
1343             }
1344         }
1345     }
1346
1347     if (success)
1348         return pathOut;
1349 #endif // wxUSE_DYNAMIC_LOADER
1350
1351     if (!success)
1352     {
1353         // The OS didn't support GetLongPathName, or some other error.
1354         // We need to call FindFirstFile on each component in turn.
1355
1356         WIN32_FIND_DATA findFileData;
1357         HANDLE hFind;
1358         pathOut = wxEmptyString;
1359
1360         wxArrayString dirs = GetDirs();
1361         dirs.Add(GetFullName());
1362
1363         wxString tmpPath;
1364
1365         size_t count = dirs.GetCount();
1366         for ( size_t i = 0; i < count; i++ )
1367         {
1368             // We're using pathOut to collect the long-name path, but using a
1369             // temporary for appending the last path component which may be
1370             // short-name
1371             tmpPath = pathOut + dirs[i];
1372
1373             if ( tmpPath.empty() )
1374                 continue;
1375
1376             if ( tmpPath.Last() == wxT(':') )
1377             {
1378                 // Can't pass a drive and root dir to FindFirstFile,
1379                 // so continue to next dir
1380                 tmpPath += wxFILE_SEP_PATH;
1381                 pathOut = tmpPath;
1382                 continue;
1383             }
1384
1385             hFind = ::FindFirstFile(tmpPath, &findFileData);
1386             if (hFind == INVALID_HANDLE_VALUE)
1387             {
1388                 // Error: return immediately with the original path
1389                 return path;
1390             }
1391
1392             pathOut += findFileData.cFileName;
1393             if ( (i < (count-1)) )
1394                 pathOut += wxFILE_SEP_PATH;
1395
1396             ::FindClose(hFind);
1397         }
1398     }
1399 #else // !Win32
1400     pathOut = path;
1401 #endif // Win32/!Win32
1402
1403     return pathOut;
1404 }
1405
1406 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1407 {
1408     if (format == wxPATH_NATIVE)
1409     {
1410 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1411         format = wxPATH_DOS;
1412 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1413         format = wxPATH_MAC;
1414 #elif defined(__VMS)
1415         format = wxPATH_VMS;
1416 #else
1417         format = wxPATH_UNIX;
1418 #endif
1419     }
1420     return format;
1421 }
1422
1423 // ----------------------------------------------------------------------------
1424 // path splitting function
1425 // ----------------------------------------------------------------------------
1426
1427 /* static */
1428 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1429                            wxString *pstrVolume,
1430                            wxString *pstrPath,
1431                            wxString *pstrName,
1432                            wxString *pstrExt,
1433                            wxPathFormat format)
1434 {
1435     format = GetFormat(format);
1436
1437     wxString fullpath = fullpathWithVolume;
1438
1439     // under VMS the end of the path is ']', not the path separator used to
1440     // separate the components
1441     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1442                                             : GetPathSeparators(format);
1443
1444     // special Windows UNC paths hack: transform \\share\path into share:path
1445     if ( format == wxPATH_DOS )
1446     {
1447         if ( fullpath.length() >= 4 &&
1448                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1449                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1450         {
1451             fullpath.erase(0, 2);
1452
1453             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1454             if ( posFirstSlash != wxString::npos )
1455             {
1456                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1457
1458                 // UNC paths are always absolute, right? (FIXME)
1459                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1460             }
1461         }
1462     }
1463
1464     // We separate the volume here
1465     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1466     {
1467         wxString sepVol = GetVolumeSeparator(format);
1468
1469         size_t posFirstColon = fullpath.find_first_of(sepVol);
1470         if ( posFirstColon != wxString::npos )
1471         {
1472             if ( pstrVolume )
1473             {
1474                 *pstrVolume = fullpath.Left(posFirstColon);
1475             }
1476
1477             // remove the volume name and the separator from the full path
1478             fullpath.erase(0, posFirstColon + sepVol.length());
1479         }
1480     }
1481
1482     // find the positions of the last dot and last path separator in the path
1483     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1484     size_t posLastSlash = fullpath.find_last_of(sepPath);
1485
1486     if ( (posLastDot != wxString::npos) &&
1487             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1488     {
1489         if ( (posLastDot == 0) ||
1490              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1491         {
1492             // under Unix and VMS, dot may be (and commonly is) the first
1493             // character of the filename, don't treat the entire filename as
1494             // extension in this case
1495             posLastDot = wxString::npos;
1496         }
1497     }
1498
1499     // if we do have a dot and a slash, check that the dot is in the name part
1500     if ( (posLastDot != wxString::npos) &&
1501          (posLastSlash != wxString::npos) &&
1502          (posLastDot < posLastSlash) )
1503     {
1504         // the dot is part of the path, not the start of the extension
1505         posLastDot = wxString::npos;
1506     }
1507
1508     // now fill in the variables provided by user
1509     if ( pstrPath )
1510     {
1511         if ( posLastSlash == wxString::npos )
1512         {
1513             // no path at all
1514             pstrPath->Empty();
1515         }
1516         else
1517         {
1518             // take everything up to the path separator but take care to make
1519             // the path equal to something like '/', not empty, for the files
1520             // immediately under root directory
1521             size_t len = posLastSlash;
1522
1523             // this rule does not apply to mac since we do not start with colons (sep)
1524             // except for relative paths
1525             if ( !len && format != wxPATH_MAC)
1526                 len++;
1527
1528             *pstrPath = fullpath.Left(len);
1529
1530             // special VMS hack: remove the initial bracket
1531             if ( format == wxPATH_VMS )
1532             {
1533                 if ( (*pstrPath)[0u] == _T('[') )
1534                     pstrPath->erase(0, 1);
1535             }
1536         }
1537     }
1538
1539     if ( pstrName )
1540     {
1541         // take all characters starting from the one after the last slash and
1542         // up to, but excluding, the last dot
1543         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1544         size_t count;
1545         if ( posLastDot == wxString::npos )
1546         {
1547             // take all until the end
1548             count = wxString::npos;
1549         }
1550         else if ( posLastSlash == wxString::npos )
1551         {
1552             count = posLastDot;
1553         }
1554         else // have both dot and slash
1555         {
1556             count = posLastDot - posLastSlash - 1;
1557         }
1558
1559         *pstrName = fullpath.Mid(nStart, count);
1560     }
1561
1562     if ( pstrExt )
1563     {
1564         if ( posLastDot == wxString::npos )
1565         {
1566             // no extension
1567             pstrExt->Empty();
1568         }
1569         else
1570         {
1571             // take everything after the dot
1572             *pstrExt = fullpath.Mid(posLastDot + 1);
1573         }
1574     }
1575 }
1576
1577 /* static */
1578 void wxFileName::SplitPath(const wxString& fullpath,
1579                            wxString *path,
1580                            wxString *name,
1581                            wxString *ext,
1582                            wxPathFormat format)
1583 {
1584     wxString volume;
1585     SplitPath(fullpath, &volume, path, name, ext, format);
1586
1587     if ( path )
1588     {
1589         path->Prepend(wxGetVolumeString(volume, format));
1590     }
1591 }
1592
1593 // ----------------------------------------------------------------------------
1594 // time functions
1595 // ----------------------------------------------------------------------------
1596
1597 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
1598                           const wxDateTime *dtMod,
1599                           const wxDateTime *dtCreate)
1600 {
1601 #if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1602     if ( !dtAccess && !dtMod )
1603     {
1604         // can't modify the creation time anyhow, don't try
1605         return TRUE;
1606     }
1607
1608     // if dtAccess or dtMod is not specified, use the other one (which must be
1609     // non NULL because of the test above) for both times
1610     utimbuf utm;
1611     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1612     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1613     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
1614     {
1615         return TRUE;
1616     }
1617 #elif defined(__WIN32__)
1618     wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
1619     if ( fh.IsOk() )
1620     {
1621         FILETIME ftAccess, ftCreate, ftWrite;
1622
1623         if ( dtCreate )
1624             ConvertWxToFileTime(&ftCreate, *dtCreate);
1625         if ( dtAccess )
1626             ConvertWxToFileTime(&ftAccess, *dtAccess);
1627         if ( dtMod )
1628             ConvertWxToFileTime(&ftWrite, *dtMod);
1629
1630         if ( ::SetFileTime(fh,
1631                            dtCreate ? &ftCreate : NULL,
1632                            dtAccess ? &ftAccess : NULL,
1633                            dtMod ? &ftWrite : NULL) )
1634         {
1635             return TRUE;
1636         }
1637     }
1638 #else // other platform
1639 #endif // platforms
1640
1641     wxLogSysError(_("Failed to modify file times for '%s'"),
1642                   GetFullPath().c_str());
1643
1644     return FALSE;
1645 }
1646
1647 bool wxFileName::Touch()
1648 {
1649 #if defined(__UNIX_LIKE__)
1650     // under Unix touching file is simple: just pass NULL to utime()
1651     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
1652     {
1653         return TRUE;
1654     }
1655
1656     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1657
1658     return FALSE;
1659 #else // other platform
1660     wxDateTime dtNow = wxDateTime::Now();
1661
1662     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
1663 #endif // platforms
1664 }
1665
1666 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1667                           wxDateTime *dtMod,
1668                           wxDateTime *dtCreate) const
1669 {
1670 #if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1671     wxStructStat stBuf;
1672     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
1673     {
1674         if ( dtAccess )
1675             dtAccess->Set(stBuf.st_atime);
1676         if ( dtMod )
1677             dtMod->Set(stBuf.st_mtime);
1678         if ( dtCreate )
1679             dtCreate->Set(stBuf.st_ctime);
1680
1681         return TRUE;
1682     }
1683 #elif defined(__WIN32__)
1684     wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
1685     if ( fh.IsOk() )
1686     {
1687         FILETIME ftAccess, ftCreate, ftWrite;
1688
1689         if ( ::GetFileTime(fh,
1690                            dtCreate ? &ftCreate : NULL,
1691                            dtAccess ? &ftAccess : NULL,
1692                            dtMod ? &ftWrite : NULL) )
1693         {
1694             if ( dtCreate )
1695                 ConvertFileTimeToWx(dtCreate, ftCreate);
1696             if ( dtAccess )
1697                 ConvertFileTimeToWx(dtAccess, ftAccess);
1698             if ( dtMod )
1699                 ConvertFileTimeToWx(dtMod, ftWrite);
1700
1701             return TRUE;
1702         }
1703     }
1704 #else // other platform
1705 #endif // platforms
1706
1707     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1708                   GetFullPath().c_str());
1709
1710     return FALSE;
1711 }
1712
1713 #ifdef __WXMAC__
1714
1715 const short kMacExtensionMaxLength = 16 ;
1716 class MacDefaultExtensionRecord
1717 {
1718 public :
1719   MacDefaultExtensionRecord()
1720   {
1721     m_ext[0] = 0 ;
1722     m_type = m_creator = NULL ;
1723   }
1724   MacDefaultExtensionRecord( const MacDefaultExtensionRecord& from )
1725   {
1726     strcpy( m_ext , from.m_ext ) ;
1727     m_type = from.m_type ;
1728     m_creator = from.m_creator ;
1729   }
1730   MacDefaultExtensionRecord( const char * extension , OSType type , OSType creator )
1731   {
1732     strncpy( m_ext , extension , kMacExtensionMaxLength ) ;
1733     m_ext[kMacExtensionMaxLength] = 0 ;
1734     m_type = type ;
1735     m_creator = creator ;
1736   }
1737   char m_ext[kMacExtensionMaxLength] ;
1738   OSType m_type ;
1739   OSType m_creator ;
1740 }  ;
1741
1742 #include "wx/dynarray.h"
1743 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
1744
1745 bool gMacDefaultExtensionsInited = false ;
1746
1747 #include "wx/arrimpl.cpp"
1748
1749 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray) ;
1750
1751 MacDefaultExtensionArray gMacDefaultExtensions ;
1752
1753 static void MacEnsureDefaultExtensionsLoaded()
1754 {
1755   if ( !gMacDefaultExtensionsInited )
1756   {
1757
1758     // load the default extensions
1759     MacDefaultExtensionRecord defaults[1] =
1760     {
1761       MacDefaultExtensionRecord( "txt" , 'TEXT' , 'ttxt' ) ,
1762
1763     } ;
1764     // we could load the pc exchange prefs here too
1765
1766     for ( int i = 0 ; i < WXSIZEOF( defaults ) ; ++i )
1767     {
1768       gMacDefaultExtensions.Add( defaults[i] ) ;
1769     }
1770     gMacDefaultExtensionsInited = true ;
1771   }
1772 }
1773 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
1774 {
1775   FInfo fndrInfo ;
1776   FSSpec spec ;
1777   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1778   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1779   wxCHECK( err == noErr , false ) ;
1780
1781   fndrInfo.fdType = type ;
1782   fndrInfo.fdCreator = creator ;
1783   FSpSetFInfo( &spec , &fndrInfo ) ;
1784   return true ;
1785 }
1786
1787 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
1788 {
1789   FInfo fndrInfo ;
1790   FSSpec spec ;
1791   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1792   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1793   wxCHECK( err == noErr , false ) ;
1794
1795   *type = fndrInfo.fdType ;
1796   *creator = fndrInfo.fdCreator ;
1797   return true ;
1798 }
1799
1800 bool wxFileName::MacSetDefaultTypeAndCreator()
1801 {
1802     wxUint32 type , creator ;
1803     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
1804       &creator ) )
1805     {
1806         return MacSetTypeAndCreator( type , creator ) ;
1807     }
1808     return false;
1809 }
1810
1811 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
1812 {
1813   MacEnsureDefaultExtensionsLoaded() ;
1814   wxString extl = ext.Lower() ;
1815   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
1816   {
1817     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
1818     {
1819       *type = gMacDefaultExtensions.Item(i).m_type ;
1820       *creator = gMacDefaultExtensions.Item(i).m_creator ;
1821       return true ;
1822     }
1823   }
1824   return false ;
1825 }
1826
1827 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
1828 {
1829   MacEnsureDefaultExtensionsLoaded() ;
1830   MacDefaultExtensionRecord rec ;
1831   rec.m_type = type ;
1832   rec.m_creator = creator ;
1833   strncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
1834   gMacDefaultExtensions.Add( rec ) ;
1835 }
1836 #endif