src/common/filename.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/filename.cpp
   3 // Purpose:     wxFileName - encapsulates a file path
   4 // Author:      Robert Roebling, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.12.2000
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 Robert Roebling
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 /*
  13    Here are brief descriptions of the filename formats supported by this class:
  14
  15    wxPATH_UNIX: standard Unix format, used under Darwin as well, absolute file
  16                 names have the form:
  17                 /dir1/dir2/.../dirN/filename, "." and ".." stand for the
  18                 current and parent directory respectively, "~" is parsed as the
  19                 user HOME and "~username" as the HOME of that user
  20
  21    wxPATH_DOS:  DOS/Windows format, absolute file names have the form:
  22                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
  23                 letter. "." and ".." as for Unix but no "~".
  24
  25                 There are also UNC names of the form \\share\fullpath
  26
  27    wxPATH_MAC:  Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
  28                 names have the form
  29                     volume:dir1:...:dirN:filename
  30                 and the relative file names are either
  31                     :dir1:...:dirN:filename
  32                 or just
  33                     filename
  34                 (although :filename works as well).
  35                 Since the volume is just part of the file path, it is not
  36                 treated like a separate entity as it is done under DOS and
  37                 VMS, it is just treated as another dir.
  38
  39    wxPATH_VMS:  VMS native format, absolute file names have the form
  40                     <device>:[dir1.dir2.dir3]file.txt
  41                 or
  42                     <device>:[000000.dir1.dir2.dir3]file.txt
  43
  44                 the <device> is the physical device (i.e. disk). 000000 is the
  45                 root directory on the device which can be omitted.
  46
  47                 Note that VMS uses different separators unlike Unix:
  48                  : always after the device. If the path does not contain : than
  49                    the default (the device of the current directory) is assumed.
  50                  [ start of directory specyfication
  51                  . separator between directory and subdirectory
  52                  ] between directory and file
  53  */
  54
  55 // ============================================================================
  56 // declarations
  57 // ============================================================================
  58
  59 // ----------------------------------------------------------------------------
  60 // headers
  61 // ----------------------------------------------------------------------------
  62
  63 #ifdef __GNUG__
  64 #pragma implementation "filename.h"
  65 #endif
  66
  67 // For compilers that support precompilation, includes "wx.h".
  68 #include "wx/wxprec.h"
  69
  70 #ifdef __BORLANDC__
  71 #pragma hdrstop
  72 #endif
  73
  74 #ifndef WX_PRECOMP
  75 #include "wx/intl.h"
  76 #include "wx/log.h"
  77 #include "wx/file.h"
  78 #endif
  79
  80 #include "wx/filename.h"
  81 #include "wx/tokenzr.h"
  82 #include "wx/config.h"          // for wxExpandEnvVars
  83 #include "wx/utils.h"
  84 #include "wx/file.h"
  85 //#include "wx/dynlib.h"        // see GetLongPath below, code disabled.
  86
  87 // For GetShort/LongPathName
  88 #ifdef __WIN32__
  89 #include <windows.h>
  90 #include "wx/msw/winundef.h"
  91 #endif
  92
  93 #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         // Special Windows UNC paths hack, part 2: undo what we did in
 250         // SplitPath() and make an UNC path if we have a drive which is not a
 251         // single letter (hopefully the network shares can't be one letter only
 252         // although I didn't find any authoritative docs on this)
 253         if ( format == wxPATH_DOS && volume.length() > 1 )
 254         {
 255             path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 256         }
 257         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 258         {
 259             path << volume << wxFileName::GetVolumeSeparator(format);
 260         }
 261         // else ignore
 262     }
 263
 264     return path;
 265 }
 266
 267 // ============================================================================
 268 // implementation
 269 // ============================================================================
 270
 271 // ----------------------------------------------------------------------------
 272 // wxFileName construction
 273 // ----------------------------------------------------------------------------
 274
 275 void wxFileName::Assign( const wxFileName &filepath )
 276 {
 277     m_volume = filepath.GetVolume();
 278     m_dirs = filepath.GetDirs();
 279     m_name = filepath.GetName();
 280     m_ext = filepath.GetExt();
 281     m_relative = filepath.m_relative;
 282 }
 283
 284 void wxFileName::Assign(const wxString& volume,
 285                         const wxString& path,
 286                         const wxString& name,
 287                         const wxString& ext,
 288                         wxPathFormat format )
 289 {
 290     SetPath( path, format );
 291
 292     m_volume = volume;
 293     m_ext = ext;
 294     m_name = name;
 295 }
 296
 297 void wxFileName::SetPath( const wxString &path, wxPathFormat format )
 298 {
 299     m_dirs.Clear();
 300
 301     if ( !path.empty() )
 302     {
 303         wxPathFormat my_format = GetFormat( format );
 304         wxString my_path = path;
 305
 306         // 1) Determine if the path is relative or absolute.
 307         wxChar leadingChar = my_path[0u];
 308
 309         switch (my_format)
 310         {
 311             case wxPATH_MAC:
 312                 m_relative = leadingChar == wxT(':');
 313
 314                 // We then remove a leading ":". The reason is in our
 315                 // storage form for relative paths:
 316                 // ":dir:file.txt" actually means "./dir/file.txt" in
 317                 // DOS notation and should get stored as
 318                 // (relative) (dir) (file.txt)
 319                 // "::dir:file.txt" actually means "../dir/file.txt"
 320                 // stored as (relative) (..) (dir) (file.txt)
 321                 // This is important only for the Mac as an empty dir
 322                 // actually means <UP>, whereas under DOS, double
 323                 // slashes can be ignored: "\\\\" is the same as "\\".
 324                 if (m_relative)
 325                     my_path.erase( 0, 1 );
 326                 break;
 327
 328             case wxPATH_VMS:
 329                 // TODO: what is the relative path format here?
 330                 m_relative = FALSE;
 331                 break;
 332
 333             case wxPATH_UNIX:
 334                 // the paths of the form "~" or "~username" are absolute
 335                 m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
 336                 break;
 337
 338             case wxPATH_DOS:
 339                 m_relative = !IsPathSeparator(leadingChar, my_format);
 340                 break;
 341
 342             default:
 343                 wxFAIL_MSG( wxT("error") );
 344                 break;
 345         }
 346
 347         // 2) Break up the path into its members. If the original path
 348         //    was just "/" or "\\", m_dirs will be empty. We know from
 349         //    the m_relative field, if this means "nothing" or "root dir".
 350
 351         wxStringTokenizer tn( my_path, GetPathSeparators(my_format) );
 352
 353         while ( tn.HasMoreTokens() )
 354         {
 355             wxString token = tn.GetNextToken();
 356
 357             // Remove empty token under DOS and Unix, interpret them
 358             // as .. under Mac.
 359             if (token.empty())
 360             {
 361                 if (my_format == wxPATH_MAC)
 362                     m_dirs.Add( wxT("..") );
 363                 // else ignore
 364             }
 365             else
 366             {
 367                m_dirs.Add( token );
 368             }
 369         }
 370     }
 371     else // no path at all
 372     {
 373         m_relative = TRUE;
 374     }
 375 }
 376
 377 void wxFileName::Assign(const wxString& fullpath,
 378                         wxPathFormat format)
 379 {
 380     wxString volume, path, name, ext;
 381     SplitPath(fullpath, &volume, &path, &name, &ext, format);
 382
 383     Assign(volume, path, name, ext, format);
 384 }
 385
 386 void wxFileName::Assign(const wxString& fullpathOrig,
 387                         const wxString& fullname,
 388                         wxPathFormat format)
 389 {
 390     // always recognize fullpath as directory, even if it doesn't end with a
 391     // slash
 392     wxString fullpath = fullpathOrig;
 393     if ( !wxEndsWithPathSeparator(fullpath) )
 394     {
 395         fullpath += GetPathSeparators(format)[0u];
 396     }
 397
 398     wxString volume, path, name, ext;
 399
 400     // do some consistency checks in debug mode: the name should be really just
 401     // the filename and the path should be really just a path
 402 #ifdef __WXDEBUG__
 403     wxString pathDummy, nameDummy, extDummy;
 404
 405     SplitPath(fullname, &pathDummy, &name, &ext, format);
 406
 407     wxASSERT_MSG( pathDummy.empty(),
 408                   _T("the file name shouldn't contain the path") );
 409
 410     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 411
 412     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 413                   _T("the path shouldn't contain file name nor extension") );
 414
 415 #else // !__WXDEBUG__
 416     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 417     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 418 #endif // __WXDEBUG__/!__WXDEBUG__
 419
 420     Assign(volume, path, name, ext, format);
 421 }
 422
 423 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 424 {
 425     Assign(dir, _T(""), format);
 426 }
 427
 428 void wxFileName::Clear()
 429 {
 430     m_dirs.Clear();
 431
 432     m_volume =
 433     m_name =
 434     m_ext = wxEmptyString;
 435 }
 436
 437 /* static */
 438 wxFileName wxFileName::FileName(const wxString& file)
 439 {
 440     return wxFileName(file);
 441 }
 442
 443 /* static */
 444 wxFileName wxFileName::DirName(const wxString& dir)
 445 {
 446     wxFileName fn;
 447     fn.AssignDir(dir);
 448     return fn;
 449 }
 450
 451 // ----------------------------------------------------------------------------
 452 // existence tests
 453 // ----------------------------------------------------------------------------
 454
 455 bool wxFileName::FileExists()
 456 {
 457     return wxFileName::FileExists( GetFullPath() );
 458 }
 459
 460 bool wxFileName::FileExists( const wxString &file )
 461 {
 462     return ::wxFileExists( file );
 463 }
 464
 465 bool wxFileName::DirExists()
 466 {
 467     return wxFileName::DirExists( GetFullPath() );
 468 }
 469
 470 bool wxFileName::DirExists( const wxString &dir )
 471 {
 472     return ::wxDirExists( dir );
 473 }
 474
 475 // ----------------------------------------------------------------------------
 476 // CWD and HOME stuff
 477 // ----------------------------------------------------------------------------
 478
 479 void wxFileName::AssignCwd(const wxString& volume)
 480 {
 481     AssignDir(wxFileName::GetCwd(volume));
 482 }
 483
 484 /* static */
 485 wxString wxFileName::GetCwd(const wxString& volume)
 486 {
 487     // if we have the volume, we must get the current directory on this drive
 488     // and to do this we have to chdir to this volume - at least under Windows,
 489     // I don't know how to get the current drive on another volume elsewhere
 490     // (TODO)
 491     wxString cwdOld;
 492     if ( !volume.empty() )
 493     {
 494         cwdOld = wxGetCwd();
 495         SetCwd(volume + GetVolumeSeparator());
 496     }
 497
 498     wxString cwd = ::wxGetCwd();
 499
 500     if ( !volume.empty() )
 501     {
 502         SetCwd(cwdOld);
 503     }
 504
 505     return cwd;
 506 }
 507
 508 bool wxFileName::SetCwd()
 509 {
 510     return wxFileName::SetCwd( GetFullPath() );
 511 }
 512
 513 bool wxFileName::SetCwd( const wxString &cwd )
 514 {
 515     return ::wxSetWorkingDirectory( cwd );
 516 }
 517
 518 void wxFileName::AssignHomeDir()
 519 {
 520     AssignDir(wxFileName::GetHomeDir());
 521 }
 522
 523 wxString wxFileName::GetHomeDir()
 524 {
 525     return ::wxGetHomeDir();
 526 }
 527
 528 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 529 {
 530     wxString tempname = CreateTempFileName(prefix, fileTemp);
 531     if ( tempname.empty() )
 532     {
 533         // error, failed to get temp file name
 534         Clear();
 535     }
 536     else // ok
 537     {
 538         Assign(tempname);
 539     }
 540 }
 541
 542 /* static */
 543 wxString
 544 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 545 {
 546     wxString path, dir, name;
 547
 548     // use the directory specified by the prefix
 549     SplitPath(prefix, &dir, &name, NULL /* extension */);
 550
 551 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 552
 553 #ifdef __WIN32__
 554     if ( dir.empty() )
 555     {
 556         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
 557         {
 558             wxLogLastError(_T("GetTempPath"));
 559         }
 560
 561         if ( dir.empty() )
 562         {
 563             // GetTempFileName() fails if we pass it an empty string
 564             dir = _T('.');
 565         }
 566     }
 567     else // we have a dir to create the file in
 568     {
 569         // ensure we use only the back slashes as GetTempFileName(), unlike all
 570         // the other APIs, is picky and doesn't accept the forward ones
 571         dir.Replace(_T("/"), _T("\\"));
 572     }
 573
 574     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 575     {
 576         wxLogLastError(_T("GetTempFileName"));
 577
 578         path.clear();
 579     }
 580 #else // Win16
 581     if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
 582     {
 583         path.clear();
 584     }
 585 #endif // Win32/16
 586
 587 #elif defined(__WXPM__)
 588     // for now just create a file
 589     //
 590     // future enhancements can be to set some extended attributes for file
 591     // systems OS/2 supports that have them (HPFS, FAT32) and security
 592     // (HPFS386)
 593     static const wxChar *szMktempSuffix = wxT("XXX");
 594     path << dir << _T('/') << name << szMktempSuffix;
 595
 596     // Temporarily remove - MN
 597     #ifndef __WATCOMC__
 598         ::DosCreateDir(wxStringBuffer(path, MAX_PATH), NULL);
 599     #endif
 600
 601 #else // !Windows, !OS/2
 602     if ( dir.empty() )
 603     {
 604 #if defined(__WXMAC__) && !defined(__DARWIN__)
 605         dir = wxMacFindFolder(  (short) kOnSystemDisk, kTemporaryFolderType, kCreateFolder ) ;
 606 #else // !Mac
 607         dir = wxGetenv(_T("TMP"));
 608         if ( dir.empty() )
 609         {
 610             dir = wxGetenv(_T("TEMP"));
 611         }
 612
 613         if ( dir.empty() )
 614         {
 615             // default
 616             #ifdef __DOS__
 617                 dir = _T(".");
 618             #else
 619                 dir = _T("/tmp");
 620             #endif
 621         }
 622 #endif // Mac/!Mac
 623     }
 624
 625     path = dir;
 626
 627     if ( !wxEndsWithPathSeparator(dir) &&
 628             (name.empty() || !wxIsPathSeparator(name[0u])) )
 629     {
 630         path += wxFILE_SEP_PATH;
 631     }
 632
 633     path += name;
 634
 635 #if defined(HAVE_MKSTEMP)
 636     // scratch space for mkstemp()
 637     path += _T("XXXXXX");
 638
 639     // can use the cast here because the length doesn't change and the string
 640     // is not shared
 641     int fdTemp = mkstemp((char *)path.mb_str());
 642     if ( fdTemp == -1 )
 643     {
 644         // this might be not necessary as mkstemp() on most systems should have
 645         // already done it but it doesn't hurt neither...
 646         path.clear();
 647     }
 648     else // mkstemp() succeeded
 649     {
 650         // avoid leaking the fd
 651         if ( fileTemp )
 652         {
 653             fileTemp->Attach(fdTemp);
 654         }
 655         else
 656         {
 657             close(fdTemp);
 658         }
 659     }
 660 #else // !HAVE_MKSTEMP
 661
 662 #ifdef HAVE_MKTEMP
 663     // same as above
 664     path += _T("XXXXXX");
 665
 666     if ( !mktemp((char *)path.mb_str()) )
 667     {
 668         path.clear();
 669     }
 670 #else // !HAVE_MKTEMP (includes __DOS__)
 671     // generate the unique file name ourselves
 672     #ifndef __DOS__
 673     path << (unsigned int)getpid();
 674     #endif
 675
 676     wxString pathTry;
 677
 678     static const size_t numTries = 1000;
 679     for ( size_t n = 0; n < numTries; n++ )
 680     {
 681         // 3 hex digits is enough for numTries == 1000 < 4096
 682         pathTry = path + wxString::Format(_T("%.03x"), n);
 683         if ( !wxFile::Exists(pathTry) )
 684         {
 685             break;
 686         }
 687
 688         pathTry.clear();
 689     }
 690
 691     path = pathTry;
 692 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 693
 694     if ( !path.empty() )
 695     {
 696     }
 697 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 698
 699 #endif // Windows/!Windows
 700
 701     if ( path.empty() )
 702     {
 703         wxLogSysError(_("Failed to create a temporary file name"));
 704     }
 705     else if ( fileTemp && !fileTemp->IsOpened() )
 706     {
 707         // open the file - of course, there is a race condition here, this is
 708         // why we always prefer using mkstemp()...
 709         //
 710         // NB: GetTempFileName() under Windows creates the file, so using
 711         //     write_excl there would fail
 712         if ( !fileTemp->Open(path,
 713 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 714                              wxFile::write,
 715 #else
 716                              wxFile::write_excl,
 717 #endif
 718                              wxS_IRUSR | wxS_IWUSR) )
 719         {
 720             // FIXME: If !ok here should we loop and try again with another
 721             //        file name?  That is the standard recourse if open(O_EXCL)
 722             //        fails, though of course it should be protected against
 723             //        possible infinite looping too.
 724
 725             wxLogError(_("Failed to open temporary file."));
 726
 727             path.clear();
 728         }
 729     }
 730
 731     return path;
 732 }
 733
 734 // ----------------------------------------------------------------------------
 735 // directory operations
 736 // ----------------------------------------------------------------------------
 737
 738 bool wxFileName::Mkdir( int perm, bool full )
 739 {
 740     return wxFileName::Mkdir( GetFullPath(), perm, full );
 741 }
 742
 743 bool wxFileName::Mkdir( const wxString &dir, int perm, bool full )
 744 {
 745     if (full)
 746     {
 747         wxFileName filename(dir);
 748         wxArrayString dirs = filename.GetDirs();
 749         dirs.Add(filename.GetName());
 750
 751         size_t count = dirs.GetCount();
 752         size_t i;
 753         wxString currPath;
 754         int noErrors = 0;
 755         for ( i = 0; i < count; i++ )
 756         {
 757             currPath += dirs[i];
 758
 759             if (currPath.Last() == wxT(':'))
 760             {
 761                 // Can't create a root directory so continue to next dir
 762                 currPath += wxFILE_SEP_PATH;
 763                 continue;
 764             }
 765
 766             if (!DirExists(currPath))
 767                 if (!wxMkdir(currPath, perm))
 768                     noErrors ++;
 769
 770             if ( (i < (count-1)) )
 771                 currPath += wxFILE_SEP_PATH;
 772         }
 773
 774         return (noErrors == 0);
 775
 776     }
 777     else
 778         return ::wxMkdir( dir, perm );
 779 }
 780
 781 bool wxFileName::Rmdir()
 782 {
 783     return wxFileName::Rmdir( GetFullPath() );
 784 }
 785
 786 bool wxFileName::Rmdir( const wxString &dir )
 787 {
 788     return ::wxRmdir( dir );
 789 }
 790
 791 // ----------------------------------------------------------------------------
 792 // path normalization
 793 // ----------------------------------------------------------------------------
 794
 795 bool wxFileName::Normalize(int flags,
 796                            const wxString& cwd,
 797                            wxPathFormat format)
 798 {
 799     // the existing path components
 800     wxArrayString dirs = GetDirs();
 801
 802     // the path to prepend in front to make the path absolute
 803     wxFileName curDir;
 804
 805     format = GetFormat(format);
 806
 807     // make the path absolute
 808     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
 809     {
 810         if ( cwd.empty() )
 811         {
 812             curDir.AssignCwd(GetVolume());
 813         }
 814         else // cwd provided
 815         {
 816             curDir.AssignDir(cwd);
 817         }
 818
 819         // the path may be not absolute because it doesn't have the volume name
 820         // but in this case we shouldn't modify the directory components of it
 821         // but just set the current volume
 822         if ( !HasVolume() && curDir.HasVolume() )
 823         {
 824             SetVolume(curDir.GetVolume());
 825
 826             if ( !m_relative )
 827             {
 828                 // yes, it was the case - we don't need curDir then
 829                 curDir.Clear();
 830             }
 831         }
 832     }
 833
 834     // handle ~ stuff under Unix only
 835     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 836     {
 837         if ( !dirs.IsEmpty() )
 838         {
 839             wxString dir = dirs[0u];
 840             if ( !dir.empty() && dir[0u] == _T('~') )
 841             {
 842                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 843
 844                 dirs.RemoveAt(0u);
 845             }
 846         }
 847     }
 848
 849     // transform relative path into abs one
 850     if ( curDir.IsOk() )
 851     {
 852         wxArrayString dirsNew = curDir.GetDirs();
 853         size_t count = dirs.GetCount();
 854         for ( size_t n = 0; n < count; n++ )
 855         {
 856             dirsNew.Add(dirs[n]);
 857         }
 858
 859         dirs = dirsNew;
 860     }
 861
 862     // now deal with ".", ".." and the rest
 863     m_dirs.Empty();
 864     size_t count = dirs.GetCount();
 865     for ( size_t n = 0; n < count; n++ )
 866     {
 867         wxString dir = dirs[n];
 868
 869         if ( flags & wxPATH_NORM_DOTS )
 870         {
 871             if ( dir == wxT(".") )
 872             {
 873                 // just ignore
 874                 continue;
 875             }
 876
 877             if ( dir == wxT("..") )
 878             {
 879                 if ( m_dirs.IsEmpty() )
 880                 {
 881                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 882                                GetFullPath().c_str());
 883                     return FALSE;
 884                 }
 885
 886                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 887                 continue;
 888             }
 889         }
 890
 891         if ( flags & wxPATH_NORM_ENV_VARS )
 892         {
 893             dir = wxExpandEnvVars(dir);
 894         }
 895
 896         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 897         {
 898             dir.MakeLower();
 899         }
 900
 901         m_dirs.Add(dir);
 902     }
 903
 904     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 905     {
 906         // VZ: expand env vars here too?
 907
 908         m_name.MakeLower();
 909         m_ext.MakeLower();
 910     }
 911
 912 #if defined(__WIN32__)
 913     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 914     {
 915         Assign(GetLongPath());
 916     }
 917 #endif // Win32
 918
 919     // we do have the path now
 920     m_relative = FALSE;
 921
 922     return TRUE;
 923 }
 924
 925 // ----------------------------------------------------------------------------
 926 // absolute/relative paths
 927 // ----------------------------------------------------------------------------
 928
 929 bool wxFileName::IsAbsolute(wxPathFormat format) const
 930 {
 931     // if our path doesn't start with a path separator, it's not an absolute
 932     // path
 933     if ( m_relative )
 934         return FALSE;
 935
 936     if ( !GetVolumeSeparator(format).empty() )
 937     {
 938         // this format has volumes and an absolute path must have one, it's not
 939         // enough to have the full path to bean absolute file under Windows
 940         if ( GetVolume().empty() )
 941             return FALSE;
 942     }
 943
 944     return TRUE;
 945 }
 946
 947 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 948 {
 949     wxFileName fnBase(pathBase, format);
 950
 951     // get cwd only once - small time saving
 952     wxString cwd = wxGetCwd();
 953     Normalize(wxPATH_NORM_ALL, cwd, format);
 954     fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
 955
 956     bool withCase = IsCaseSensitive(format);
 957
 958     // we can't do anything if the files live on different volumes
 959     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 960     {
 961         // nothing done
 962         return FALSE;
 963     }
 964
 965     // same drive, so we don't need our volume
 966     m_volume.clear();
 967
 968     // remove common directories starting at the top
 969     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 970                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 971     {
 972         m_dirs.RemoveAt(0);
 973         fnBase.m_dirs.RemoveAt(0);
 974     }
 975
 976     // add as many ".." as needed
 977     size_t count = fnBase.m_dirs.GetCount();
 978     for ( size_t i = 0; i < count; i++ )
 979     {
 980         m_dirs.Insert(wxT(".."), 0u);
 981     }
 982
 983     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
 984     {
 985         // a directory made relative with respect to itself is '.' under Unix
 986         // and DOS, by definition (but we don't have to insert "./" for the
 987         // files)
 988         if ( m_dirs.IsEmpty() && IsDir() )
 989         {
 990             m_dirs.Add(_T('.'));
 991         }
 992     }
 993
 994     m_relative = TRUE;
 995
 996     // we were modified
 997     return TRUE;
 998 }
 999
1000 // ----------------------------------------------------------------------------
1001 // filename kind tests
1002 // ----------------------------------------------------------------------------
1003
1004 bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
1005 {
1006     wxFileName fn1 = *this,
1007                fn2 = filepath;
1008
1009     // get cwd only once - small time saving
1010     wxString cwd = wxGetCwd();
1011     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
1012     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
1013
1014     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1015         return TRUE;
1016
1017     // TODO: compare inodes for Unix, this works even when filenames are
1018     //       different but files are the same (symlinks) (VZ)
1019
1020     return FALSE;
1021 }
1022
1023 /* static */
1024 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1025 {
1026     // only Unix filenames are truely case-sensitive
1027     return GetFormat(format) == wxPATH_UNIX;
1028 }
1029
1030 /* static */
1031 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
1032 {
1033     wxString sepVol;
1034
1035     if ( (GetFormat(format) == wxPATH_DOS) ||
1036          (GetFormat(format) == wxPATH_VMS) )
1037     {
1038         sepVol = wxFILE_SEP_DSK;
1039     }
1040     //else: leave empty
1041
1042     return sepVol;
1043 }
1044
1045 /* static */
1046 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1047 {
1048     wxString seps;
1049     switch ( GetFormat(format) )
1050     {
1051         case wxPATH_DOS:
1052             // accept both as native APIs do but put the native one first as
1053             // this is the one we use in GetFullPath()
1054             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1055             break;
1056
1057         default:
1058             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
1059             // fall through
1060
1061         case wxPATH_UNIX:
1062             seps = wxFILE_SEP_PATH_UNIX;
1063             break;
1064
1065         case wxPATH_MAC:
1066             seps = wxFILE_SEP_PATH_MAC;
1067             break;
1068
1069         case wxPATH_VMS:
1070             seps = wxFILE_SEP_PATH_VMS;
1071             break;
1072     }
1073
1074     return seps;
1075 }
1076
1077 /* static */
1078 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1079 {
1080     // wxString::Find() doesn't work as expected with NUL - it will always find
1081     // it, so it is almost surely a bug if this function is called with NUL arg
1082     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
1083
1084     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1085 }
1086
1087 // ----------------------------------------------------------------------------
1088 // path components manipulation
1089 // ----------------------------------------------------------------------------
1090
1091 void wxFileName::AppendDir( const wxString &dir )
1092 {
1093     m_dirs.Add( dir );
1094 }
1095
1096 void wxFileName::PrependDir( const wxString &dir )
1097 {
1098     m_dirs.Insert( dir, 0 );
1099 }
1100
1101 void wxFileName::InsertDir( int before, const wxString &dir )
1102 {
1103     m_dirs.Insert( dir, before );
1104 }
1105
1106 void wxFileName::RemoveDir( int pos )
1107 {
1108     m_dirs.Remove( (size_t)pos );
1109 }
1110
1111 // ----------------------------------------------------------------------------
1112 // accessors
1113 // ----------------------------------------------------------------------------
1114
1115 void wxFileName::SetFullName(const wxString& fullname)
1116 {
1117     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1118 }
1119
1120 wxString wxFileName::GetFullName() const
1121 {
1122     wxString fullname = m_name;
1123     if ( !m_ext.empty() )
1124     {
1125         fullname << wxFILE_SEP_EXT << m_ext;
1126     }
1127
1128     return fullname;
1129 }
1130
1131 wxString wxFileName::GetPath( bool add_separator, wxPathFormat format ) const
1132 {
1133     format = GetFormat( format );
1134
1135     wxString fullpath;
1136
1137     // the leading character
1138     if ( format == wxPATH_MAC && m_relative )
1139     {
1140          fullpath += wxFILE_SEP_PATH_MAC;
1141     }
1142     else if ( format == wxPATH_DOS )
1143     {
1144          if (!m_relative)
1145              fullpath += wxFILE_SEP_PATH_DOS;
1146     }
1147     else if ( format == wxPATH_UNIX )
1148     {
1149          if (!m_relative)
1150              fullpath += wxFILE_SEP_PATH_UNIX;
1151     }
1152
1153     // then concatenate all the path components using the path separator
1154     size_t dirCount = m_dirs.GetCount();
1155     if ( dirCount )
1156     {
1157         if ( format == wxPATH_VMS )
1158         {
1159             fullpath += wxT('[');
1160         }
1161
1162
1163         for ( size_t i = 0; i < dirCount; i++ )
1164         {
1165             // TODO: What to do with ".." under VMS
1166
1167             switch (format)
1168             {
1169                 case wxPATH_MAC:
1170                 {
1171                     if (m_dirs[i] == wxT("."))
1172                         break;
1173                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1174                          fullpath += m_dirs[i];
1175                     fullpath += wxT(':');
1176                     break;
1177                 }
1178                 case wxPATH_DOS:
1179                 {
1180                     fullpath += m_dirs[i];
1181                     fullpath += wxT('\\');
1182                     break;
1183                 }
1184                 case wxPATH_UNIX:
1185                 {
1186                     fullpath += m_dirs[i];
1187                     fullpath += wxT('/');
1188                     break;
1189                 }
1190                 case wxPATH_VMS:
1191                 {
1192                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1193                         fullpath += m_dirs[i];
1194                     if (i == dirCount-1)
1195                         fullpath += wxT(']');
1196                     else
1197                         fullpath += wxT('.');
1198                     break;
1199                 }
1200                 default:
1201                 {
1202                     wxFAIL_MSG( wxT("error") );
1203                 }
1204             }
1205         }
1206     }
1207
1208     if ( add_separator && !fullpath.empty() )
1209     {
1210         fullpath += GetPathSeparators(format)[0u];
1211     }
1212
1213     return fullpath;
1214 }
1215
1216 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1217 {
1218     format = GetFormat(format);
1219
1220     // first put the volume
1221     wxString fullpath = wxGetVolumeString(m_volume, format);
1222
1223     // the leading character
1224     if ( format == wxPATH_MAC )
1225     {
1226         if ( m_relative )
1227             fullpath += wxFILE_SEP_PATH_MAC;
1228     }
1229     else if ( format == wxPATH_DOS )
1230     {
1231         if ( !m_relative )
1232             fullpath += wxFILE_SEP_PATH_DOS;
1233     }
1234     else if ( format == wxPATH_UNIX )
1235     {
1236         if ( !m_relative )
1237         {
1238             // normally the absolute file names starts with a slash with one
1239             // exception: file names like "~/foo.bar" don't have it
1240             if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1241             {
1242                 fullpath += wxFILE_SEP_PATH_UNIX;
1243             }
1244         }
1245     }
1246
1247     // then concatenate all the path components using the path separator
1248     size_t dirCount = m_dirs.GetCount();
1249     if ( dirCount )
1250     {
1251         if ( format == wxPATH_VMS )
1252         {
1253             fullpath += wxT('[');
1254         }
1255
1256
1257         for ( size_t i = 0; i < dirCount; i++ )
1258         {
1259             // TODO: What to do with ".." under VMS
1260
1261             switch (format)
1262             {
1263                 case wxPATH_MAC:
1264                 {
1265                     if (m_dirs[i] == wxT("."))
1266                         break;
1267                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1268                          fullpath += m_dirs[i];
1269                     fullpath += wxT(':');
1270                     break;
1271                 }
1272                 case wxPATH_DOS:
1273                 {
1274                     fullpath += m_dirs[i];
1275                     fullpath += wxT('\\');
1276                     break;
1277                 }
1278                 case wxPATH_UNIX:
1279                 {
1280                     fullpath += m_dirs[i];
1281                     fullpath += wxT('/');
1282                     break;
1283                 }
1284                 case wxPATH_VMS:
1285                 {
1286                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1287                         fullpath += m_dirs[i];
1288                     if (i == dirCount-1)
1289                         fullpath += wxT(']');
1290                     else
1291                         fullpath += wxT('.');
1292                     break;
1293                 }
1294                 default:
1295                 {
1296                     wxFAIL_MSG( wxT("error") );
1297                 }
1298             }
1299         }
1300     }
1301
1302     // finally add the file name and extension
1303     fullpath += GetFullName();
1304
1305     return fullpath;
1306 }
1307
1308 // Return the short form of the path (returns identity on non-Windows platforms)
1309 wxString wxFileName::GetShortPath() const
1310 {
1311 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1312     wxString path(GetFullPath());
1313     wxString pathOut;
1314     DWORD sz = ::GetShortPathName(path, NULL, 0);
1315     bool ok = sz != 0;
1316     if ( ok )
1317     {
1318         ok = ::GetShortPathName
1319                (
1320                 path,
1321                 pathOut.GetWriteBuf(sz),
1322                 sz
1323                ) != 0;
1324         pathOut.UngetWriteBuf();
1325     }
1326     if (ok)
1327         return pathOut;
1328
1329     return path;
1330 #else
1331     return GetFullPath();
1332 #endif
1333 }
1334
1335 // Return the long form of the path (returns identity on non-Windows platforms)
1336 wxString wxFileName::GetLongPath() const
1337 {
1338     wxString pathOut,
1339              path = GetFullPath();
1340
1341 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1342     bool success = FALSE;
1343
1344     // VZ: why was this code disabled?
1345 #if 0 // wxUSE_DYNAMIC_LOADER
1346     typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1347
1348     static bool s_triedToLoad = FALSE;
1349
1350     if ( !s_triedToLoad )
1351     {
1352         s_triedToLoad = TRUE;
1353         wxDynamicLibrary dllKernel(_T("kernel32"));
1354         if ( dllKernel.IsLoaded() )
1355         {
1356             // may succeed or fail depending on the Windows version
1357             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1358 #ifdef _UNICODE
1359             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1360 #else
1361             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1362 #endif
1363
1364             if ( s_pfnGetLongPathName )
1365             {
1366                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1367                 bool ok = dwSize > 0;
1368
1369                 if ( ok )
1370                 {
1371                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1372                     ok = sz != 0;
1373                     if ( ok )
1374                     {
1375                         ok = (*s_pfnGetLongPathName)
1376                                 (
1377                                 path,
1378                                 pathOut.GetWriteBuf(sz),
1379                                 sz
1380                                 ) != 0;
1381                         pathOut.UngetWriteBuf();
1382
1383                         success = TRUE;
1384                     }
1385                 }
1386             }
1387         }
1388     }
1389     if (success)
1390         return pathOut;
1391 #endif // wxUSE_DYNAMIC_LOADER
1392
1393     if (!success)
1394     {
1395         // The OS didn't support GetLongPathName, or some other error.
1396         // We need to call FindFirstFile on each component in turn.
1397
1398         WIN32_FIND_DATA findFileData;
1399         HANDLE hFind;
1400         pathOut = wxEmptyString;
1401
1402         wxArrayString dirs = GetDirs();
1403         dirs.Add(GetFullName());
1404
1405         wxString tmpPath;
1406
1407         size_t count = dirs.GetCount();
1408         for ( size_t i = 0; i < count; i++ )
1409         {
1410             // We're using pathOut to collect the long-name path, but using a
1411             // temporary for appending the last path component which may be
1412             // short-name
1413             tmpPath = pathOut + dirs[i];
1414
1415             if ( tmpPath.empty() )
1416                 continue;
1417
1418             if ( tmpPath.Last() == wxT(':') )
1419             {
1420                 // Can't pass a drive and root dir to FindFirstFile,
1421                 // so continue to next dir
1422                 tmpPath += wxFILE_SEP_PATH;
1423                 pathOut = tmpPath;
1424                 continue;
1425             }
1426
1427             hFind = ::FindFirstFile(tmpPath, &findFileData);
1428             if (hFind == INVALID_HANDLE_VALUE)
1429             {
1430                 // Error: return immediately with the original path
1431                 return path;
1432             }
1433
1434             pathOut += findFileData.cFileName;
1435             if ( (i < (count-1)) )
1436                 pathOut += wxFILE_SEP_PATH;
1437
1438             ::FindClose(hFind);
1439         }
1440     }
1441 #else // !Win32
1442     pathOut = path;
1443 #endif // Win32/!Win32
1444
1445     return pathOut;
1446 }
1447
1448 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1449 {
1450     if (format == wxPATH_NATIVE)
1451     {
1452 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1453         format = wxPATH_DOS;
1454 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1455         format = wxPATH_MAC;
1456 #elif defined(__VMS)
1457         format = wxPATH_VMS;
1458 #else
1459         format = wxPATH_UNIX;
1460 #endif
1461     }
1462     return format;
1463 }
1464
1465 // ----------------------------------------------------------------------------
1466 // path splitting function
1467 // ----------------------------------------------------------------------------
1468
1469 /* static */
1470 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1471                            wxString *pstrVolume,
1472                            wxString *pstrPath,
1473                            wxString *pstrName,
1474                            wxString *pstrExt,
1475                            wxPathFormat format)
1476 {
1477     format = GetFormat(format);
1478
1479     wxString fullpath = fullpathWithVolume;
1480
1481     // under VMS the end of the path is ']', not the path separator used to
1482     // separate the components
1483     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1484                                             : GetPathSeparators(format);
1485
1486     // special Windows UNC paths hack: transform \\share\path into share:path
1487     if ( format == wxPATH_DOS )
1488     {
1489         if ( fullpath.length() >= 4 &&
1490                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1491                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1492         {
1493             fullpath.erase(0, 2);
1494
1495             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1496             if ( posFirstSlash != wxString::npos )
1497             {
1498                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1499
1500                 // UNC paths are always absolute, right? (FIXME)
1501                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1502             }
1503         }
1504     }
1505
1506     // We separate the volume here
1507     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1508     {
1509         wxString sepVol = GetVolumeSeparator(format);
1510
1511         size_t posFirstColon = fullpath.find_first_of(sepVol);
1512         if ( posFirstColon != wxString::npos )
1513         {
1514             if ( pstrVolume )
1515             {
1516                 *pstrVolume = fullpath.Left(posFirstColon);
1517             }
1518
1519             // remove the volume name and the separator from the full path
1520             fullpath.erase(0, posFirstColon + sepVol.length());
1521         }
1522     }
1523
1524     // find the positions of the last dot and last path separator in the path
1525     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1526     size_t posLastSlash = fullpath.find_last_of(sepPath);
1527
1528     if ( (posLastDot != wxString::npos) &&
1529             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1530     {
1531         if ( (posLastDot == 0) ||
1532              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1533         {
1534             // under Unix and VMS, dot may be (and commonly is) the first
1535             // character of the filename, don't treat the entire filename as
1536             // extension in this case
1537             posLastDot = wxString::npos;
1538         }
1539     }
1540
1541     // if we do have a dot and a slash, check that the dot is in the name part
1542     if ( (posLastDot != wxString::npos) &&
1543          (posLastSlash != wxString::npos) &&
1544          (posLastDot < posLastSlash) )
1545     {
1546         // the dot is part of the path, not the start of the extension
1547         posLastDot = wxString::npos;
1548     }
1549
1550     // now fill in the variables provided by user
1551     if ( pstrPath )
1552     {
1553         if ( posLastSlash == wxString::npos )
1554         {
1555             // no path at all
1556             pstrPath->Empty();
1557         }
1558         else
1559         {
1560             // take everything up to the path separator but take care to make
1561             // the path equal to something like '/', not empty, for the files
1562             // immediately under root directory
1563             size_t len = posLastSlash;
1564
1565             // this rule does not apply to mac since we do not start with colons (sep)
1566             // except for relative paths
1567             if ( !len && format != wxPATH_MAC)
1568                 len++;
1569
1570             *pstrPath = fullpath.Left(len);
1571
1572             // special VMS hack: remove the initial bracket
1573             if ( format == wxPATH_VMS )
1574             {
1575                 if ( (*pstrPath)[0u] == _T('[') )
1576                     pstrPath->erase(0, 1);
1577             }
1578         }
1579     }
1580
1581     if ( pstrName )
1582     {
1583         // take all characters starting from the one after the last slash and
1584         // up to, but excluding, the last dot
1585         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1586         size_t count;
1587         if ( posLastDot == wxString::npos )
1588         {
1589             // take all until the end
1590             count = wxString::npos;
1591         }
1592         else if ( posLastSlash == wxString::npos )
1593         {
1594             count = posLastDot;
1595         }
1596         else // have both dot and slash
1597         {
1598             count = posLastDot - posLastSlash - 1;
1599         }
1600
1601         *pstrName = fullpath.Mid(nStart, count);
1602     }
1603
1604     if ( pstrExt )
1605     {
1606         if ( posLastDot == wxString::npos )
1607         {
1608             // no extension
1609             pstrExt->Empty();
1610         }
1611         else
1612         {
1613             // take everything after the dot
1614             *pstrExt = fullpath.Mid(posLastDot + 1);
1615         }
1616     }
1617 }
1618
1619 /* static */
1620 void wxFileName::SplitPath(const wxString& fullpath,
1621                            wxString *path,
1622                            wxString *name,
1623                            wxString *ext,
1624                            wxPathFormat format)
1625 {
1626     wxString volume;
1627     SplitPath(fullpath, &volume, path, name, ext, format);
1628
1629     if ( path )
1630     {
1631         path->Prepend(wxGetVolumeString(volume, format));
1632     }
1633 }
1634
1635 // ----------------------------------------------------------------------------
1636 // time functions
1637 // ----------------------------------------------------------------------------
1638
1639 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
1640                           const wxDateTime *dtMod,
1641                           const wxDateTime *dtCreate)
1642 {
1643 #if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1644     if ( !dtAccess && !dtMod )
1645     {
1646         // can't modify the creation time anyhow, don't try
1647         return TRUE;
1648     }
1649
1650     // if dtAccess or dtMod is not specified, use the other one (which must be
1651     // non NULL because of the test above) for both times
1652     utimbuf utm;
1653     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1654     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1655     if ( utime(GetFullPath(), &utm) == 0 )
1656     {
1657         return TRUE;
1658     }
1659 #elif defined(__WIN32__)
1660     wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
1661     if ( fh.IsOk() )
1662     {
1663         FILETIME ftAccess, ftCreate, ftWrite;
1664
1665         if ( dtCreate )
1666             ConvertWxToFileTime(&ftCreate, *dtCreate);
1667         if ( dtAccess )
1668             ConvertWxToFileTime(&ftAccess, *dtAccess);
1669         if ( dtMod )
1670             ConvertWxToFileTime(&ftWrite, *dtMod);
1671
1672         if ( ::SetFileTime(fh,
1673                            dtCreate ? &ftCreate : NULL,
1674                            dtAccess ? &ftAccess : NULL,
1675                            dtMod ? &ftWrite : NULL) )
1676         {
1677             return TRUE;
1678         }
1679     }
1680 #else // other platform
1681 #endif // platforms
1682
1683     wxLogSysError(_("Failed to modify file times for '%s'"),
1684                   GetFullPath().c_str());
1685
1686     return FALSE;
1687 }
1688
1689 bool wxFileName::Touch()
1690 {
1691 #if defined(__UNIX_LIKE__)
1692     // under Unix touching file is simple: just pass NULL to utime()
1693     if ( utime(GetFullPath(), NULL) == 0 )
1694     {
1695         return TRUE;
1696     }
1697
1698     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1699
1700     return FALSE;
1701 #else // other platform
1702     wxDateTime dtNow = wxDateTime::Now();
1703
1704     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
1705 #endif // platforms
1706 }
1707
1708 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1709                           wxDateTime *dtMod,
1710                           wxDateTime *dtCreate) const
1711 {
1712 #if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1713     wxStructStat stBuf;
1714     if ( wxStat(GetFullPath(), &stBuf) == 0 )
1715     {
1716         if ( dtAccess )
1717             dtAccess->Set(stBuf.st_atime);
1718         if ( dtMod )
1719             dtMod->Set(stBuf.st_mtime);
1720         if ( dtCreate )
1721             dtCreate->Set(stBuf.st_ctime);
1722
1723         return TRUE;
1724     }
1725 #elif defined(__WIN32__)
1726     wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
1727     if ( fh.IsOk() )
1728     {
1729         FILETIME ftAccess, ftCreate, ftWrite;
1730
1731         if ( ::GetFileTime(fh,
1732                            dtMod ? &ftCreate : NULL,
1733                            dtAccess ? &ftAccess : NULL,
1734                            dtCreate ? &ftWrite : NULL) )
1735         {
1736             if ( dtMod )
1737                 ConvertFileTimeToWx(dtMod, ftCreate);
1738             if ( dtAccess )
1739                 ConvertFileTimeToWx(dtAccess, ftAccess);
1740             if ( dtCreate )
1741                 ConvertFileTimeToWx(dtCreate, ftWrite);
1742
1743             return TRUE;
1744         }
1745     }
1746 #else // other platform
1747 #endif // platforms
1748
1749     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1750                   GetFullPath().c_str());
1751
1752     return FALSE;
1753 }
1754
1755 #ifdef __WXMAC__
1756
1757 const short kMacExtensionMaxLength = 16 ;
1758 typedef struct
1759 {
1760   char m_ext[kMacExtensionMaxLength] ;
1761   OSType m_type ;
1762   OSType m_creator ;
1763 } MacDefaultExtensionRecord ;
1764
1765 #include "wx/dynarray.h"
1766 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
1767 #include "wx/arrimpl.cpp"
1768 WX_DEFINE_OBJARRAY(MacDefaultExtensionArray) ;
1769
1770 MacDefaultExtensionArray gMacDefaultExtensions ;
1771 bool gMacDefaultExtensionsInited = false ;
1772
1773 static void MacEnsureDefaultExtensionsLoaded()
1774 {
1775   if ( !gMacDefaultExtensionsInited )
1776   {
1777     // load the default extensions
1778     MacDefaultExtensionRecord defaults[] =
1779     {
1780       { "txt" , 'TEXT' , 'ttxt' } ,
1781
1782     } ;
1783     // we could load the pc exchange prefs here too
1784
1785     for ( int i = 0 ; i < WXSIZEOF( defaults ) ; ++i )
1786     {
1787       gMacDefaultExtensions.Add( defaults[i] ) ;
1788     }
1789     gMacDefaultExtensionsInited = true ;
1790   }
1791 }
1792 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
1793 {
1794   FInfo fndrInfo ;
1795   FSSpec spec ;
1796   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1797   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1798   wxCHECK( err == noErr , false ) ;
1799
1800   fndrInfo.fdType = type ;
1801   fndrInfo.fdCreator = creator ;
1802   FSpSetFInfo( &spec , &fndrInfo ) ;
1803   return true ;
1804 }
1805
1806 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
1807 {
1808   FInfo fndrInfo ;
1809   FSSpec spec ;
1810   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1811   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1812   wxCHECK( err == noErr , false ) ;
1813
1814   *type = fndrInfo.fdType ;
1815   *creator = fndrInfo.fdCreator ;
1816   return true ;
1817 }
1818
1819 bool wxFileName::MacSetDefaultTypeAndCreator()
1820 {
1821     wxUint32 type , creator ;
1822     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
1823       &creator ) )
1824     {
1825         return MacSetTypeAndCreator( type , creator ) ;
1826     }
1827     return false;
1828 }
1829
1830 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
1831 {
1832   MacEnsureDefaultExtensionsLoaded() ;
1833   wxString extl = ext.Lower() ;
1834   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
1835   {
1836     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
1837     {
1838       *type = gMacDefaultExtensions.Item(i).m_type ;
1839       *creator = gMacDefaultExtensions.Item(i).m_creator ;
1840       return true ;
1841     }
1842   }
1843   return false ;
1844 }
1845
1846 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
1847 {
1848   MacEnsureDefaultExtensionsLoaded() ;
1849   MacDefaultExtensionRecord rec ;
1850   rec.m_type = type ;
1851   rec.m_creator = creator ;
1852   strncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
1853   gMacDefaultExtensions.Add( rec ) ;
1854 }
1855 #endif