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         // 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 += GetPathSeparator(format);
 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, int flags )
 739 {
 740     return wxFileName::Mkdir( GetFullPath(), perm, flags );
 741 }
 742
 743 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
 744 {
 745     if ( flags & wxPATH_MKDIR_FULL )
 746     {
 747         // split the path in components
 748         wxFileName filename;
 749         filename.AssignDir(dir);
 750
 751         wxString currPath;
 752         if ( filename.HasVolume())
 753         {
 754             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
 755         }
 756
 757         wxArrayString dirs = filename.GetDirs();
 758         size_t count = dirs.GetCount();
 759         for ( size_t i = 0; i < count; i++ )
 760         {
 761             if ( i > 0 || filename.IsAbsolute() )
 762                 currPath += wxFILE_SEP_PATH;
 763             currPath += dirs[i];
 764
 765             if (!DirExists(currPath))
 766             {
 767                 if (!wxMkdir(currPath, perm))
 768                 {
 769                     // no need to try creating further directories
 770                     return FALSE;
 771                 }
 772             }
 773         }
 774
 775         return TRUE;
 776
 777     }
 778
 779     return ::wxMkdir( dir, perm );
 780 }
 781
 782 bool wxFileName::Rmdir()
 783 {
 784     return wxFileName::Rmdir( GetFullPath() );
 785 }
 786
 787 bool wxFileName::Rmdir( const wxString &dir )
 788 {
 789     return ::wxRmdir( dir );
 790 }
 791
 792 // ----------------------------------------------------------------------------
 793 // path normalization
 794 // ----------------------------------------------------------------------------
 795
 796 bool wxFileName::Normalize(int flags,
 797                            const wxString& cwd,
 798                            wxPathFormat format)
 799 {
 800     // the existing path components
 801     wxArrayString dirs = GetDirs();
 802
 803     // the path to prepend in front to make the path absolute
 804     wxFileName curDir;
 805
 806     format = GetFormat(format);
 807
 808     // make the path absolute
 809     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
 810     {
 811         if ( cwd.empty() )
 812         {
 813             curDir.AssignCwd(GetVolume());
 814         }
 815         else // cwd provided
 816         {
 817             curDir.AssignDir(cwd);
 818         }
 819
 820         // the path may be not absolute because it doesn't have the volume name
 821         // but in this case we shouldn't modify the directory components of it
 822         // but just set the current volume
 823         if ( !HasVolume() && curDir.HasVolume() )
 824         {
 825             SetVolume(curDir.GetVolume());
 826
 827             if ( !m_relative )
 828             {
 829                 // yes, it was the case - we don't need curDir then
 830                 curDir.Clear();
 831             }
 832         }
 833     }
 834
 835     // handle ~ stuff under Unix only
 836     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 837     {
 838         if ( !dirs.IsEmpty() )
 839         {
 840             wxString dir = dirs[0u];
 841             if ( !dir.empty() && dir[0u] == _T('~') )
 842             {
 843                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 844
 845                 dirs.RemoveAt(0u);
 846             }
 847         }
 848     }
 849
 850     // transform relative path into abs one
 851     if ( curDir.IsOk() )
 852     {
 853         wxArrayString dirsNew = curDir.GetDirs();
 854         size_t count = dirs.GetCount();
 855         for ( size_t n = 0; n < count; n++ )
 856         {
 857             dirsNew.Add(dirs[n]);
 858         }
 859
 860         dirs = dirsNew;
 861     }
 862
 863     // now deal with ".", ".." and the rest
 864     m_dirs.Empty();
 865     size_t count = dirs.GetCount();
 866     for ( size_t n = 0; n < count; n++ )
 867     {
 868         wxString dir = dirs[n];
 869
 870         if ( flags & wxPATH_NORM_DOTS )
 871         {
 872             if ( dir == wxT(".") )
 873             {
 874                 // just ignore
 875                 continue;
 876             }
 877
 878             if ( dir == wxT("..") )
 879             {
 880                 if ( m_dirs.IsEmpty() )
 881                 {
 882                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 883                                GetFullPath().c_str());
 884                     return FALSE;
 885                 }
 886
 887                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 888                 continue;
 889             }
 890         }
 891
 892         if ( flags & wxPATH_NORM_ENV_VARS )
 893         {
 894             dir = wxExpandEnvVars(dir);
 895         }
 896
 897         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 898         {
 899             dir.MakeLower();
 900         }
 901
 902         m_dirs.Add(dir);
 903     }
 904
 905     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 906     {
 907         // VZ: expand env vars here too?
 908
 909         m_name.MakeLower();
 910         m_ext.MakeLower();
 911     }
 912
 913 #if defined(__WIN32__)
 914     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 915     {
 916         Assign(GetLongPath());
 917     }
 918 #endif // Win32
 919
 920     // we do have the path now
 921     m_relative = FALSE;
 922
 923     return TRUE;
 924 }
 925
 926 // ----------------------------------------------------------------------------
 927 // absolute/relative paths
 928 // ----------------------------------------------------------------------------
 929
 930 bool wxFileName::IsAbsolute(wxPathFormat format) const
 931 {
 932     // if our path doesn't start with a path separator, it's not an absolute
 933     // path
 934     if ( m_relative )
 935         return FALSE;
 936
 937     if ( !GetVolumeSeparator(format).empty() )
 938     {
 939         // this format has volumes and an absolute path must have one, it's not
 940         // enough to have the full path to bean absolute file under Windows
 941         if ( GetVolume().empty() )
 942             return FALSE;
 943     }
 944
 945     return TRUE;
 946 }
 947
 948 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 949 {
 950     wxFileName fnBase(pathBase, format);
 951
 952     // get cwd only once - small time saving
 953     wxString cwd = wxGetCwd();
 954     Normalize(wxPATH_NORM_ALL, cwd, format);
 955     fnBase.Normalize(wxPATH_NORM_ALL, cwd, format);
 956
 957     bool withCase = IsCaseSensitive(format);
 958
 959     // we can't do anything if the files live on different volumes
 960     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 961     {
 962         // nothing done
 963         return FALSE;
 964     }
 965
 966     // same drive, so we don't need our volume
 967     m_volume.clear();
 968
 969     // remove common directories starting at the top
 970     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 971                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 972     {
 973         m_dirs.RemoveAt(0);
 974         fnBase.m_dirs.RemoveAt(0);
 975     }
 976
 977     // add as many ".." as needed
 978     size_t count = fnBase.m_dirs.GetCount();
 979     for ( size_t i = 0; i < count; i++ )
 980     {
 981         m_dirs.Insert(wxT(".."), 0u);
 982     }
 983
 984     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
 985     {
 986         // a directory made relative with respect to itself is '.' under Unix
 987         // and DOS, by definition (but we don't have to insert "./" for the
 988         // files)
 989         if ( m_dirs.IsEmpty() && IsDir() )
 990         {
 991             m_dirs.Add(_T('.'));
 992         }
 993     }
 994
 995     m_relative = TRUE;
 996
 997     // we were modified
 998     return TRUE;
 999 }
1000
1001 // ----------------------------------------------------------------------------
1002 // filename kind tests
1003 // ----------------------------------------------------------------------------
1004
1005 bool wxFileName::SameAs(const wxFileName &filepath, wxPathFormat format)
1006 {
1007     wxFileName fn1 = *this,
1008                fn2 = filepath;
1009
1010     // get cwd only once - small time saving
1011     wxString cwd = wxGetCwd();
1012     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
1013     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
1014
1015     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1016         return TRUE;
1017
1018     // TODO: compare inodes for Unix, this works even when filenames are
1019     //       different but files are the same (symlinks) (VZ)
1020
1021     return FALSE;
1022 }
1023
1024 /* static */
1025 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1026 {
1027     // only Unix filenames are truely case-sensitive
1028     return GetFormat(format) == wxPATH_UNIX;
1029 }
1030
1031 /* static */
1032 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
1033 {
1034     wxString sepVol;
1035
1036     if ( (GetFormat(format) == wxPATH_DOS) ||
1037          (GetFormat(format) == wxPATH_VMS) )
1038     {
1039         sepVol = wxFILE_SEP_DSK;
1040     }
1041     //else: leave empty
1042
1043     return sepVol;
1044 }
1045
1046 /* static */
1047 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1048 {
1049     wxString seps;
1050     switch ( GetFormat(format) )
1051     {
1052         case wxPATH_DOS:
1053             // accept both as native APIs do but put the native one first as
1054             // this is the one we use in GetFullPath()
1055             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1056             break;
1057
1058         default:
1059             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
1060             // fall through
1061
1062         case wxPATH_UNIX:
1063             seps = wxFILE_SEP_PATH_UNIX;
1064             break;
1065
1066         case wxPATH_MAC:
1067             seps = wxFILE_SEP_PATH_MAC;
1068             break;
1069
1070         case wxPATH_VMS:
1071             seps = wxFILE_SEP_PATH_VMS;
1072             break;
1073     }
1074
1075     return seps;
1076 }
1077
1078 /* static */
1079 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1080 {
1081     // wxString::Find() doesn't work as expected with NUL - it will always find
1082     // it, so it is almost surely a bug if this function is called with NUL arg
1083     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
1084
1085     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1086 }
1087
1088 // ----------------------------------------------------------------------------
1089 // path components manipulation
1090 // ----------------------------------------------------------------------------
1091
1092 void wxFileName::AppendDir( const wxString &dir )
1093 {
1094     m_dirs.Add( dir );
1095 }
1096
1097 void wxFileName::PrependDir( const wxString &dir )
1098 {
1099     m_dirs.Insert( dir, 0 );
1100 }
1101
1102 void wxFileName::InsertDir( int before, const wxString &dir )
1103 {
1104     m_dirs.Insert( dir, before );
1105 }
1106
1107 void wxFileName::RemoveDir( int pos )
1108 {
1109     m_dirs.Remove( (size_t)pos );
1110 }
1111
1112 // ----------------------------------------------------------------------------
1113 // accessors
1114 // ----------------------------------------------------------------------------
1115
1116 void wxFileName::SetFullName(const wxString& fullname)
1117 {
1118     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1119 }
1120
1121 wxString wxFileName::GetFullName() const
1122 {
1123     wxString fullname = m_name;
1124     if ( !m_ext.empty() )
1125     {
1126         fullname << wxFILE_SEP_EXT << m_ext;
1127     }
1128
1129     return fullname;
1130 }
1131
1132 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1133 {
1134     format = GetFormat( format );
1135
1136     wxString fullpath;
1137
1138     // return the volume with the path as well if requested
1139     if ( flags & wxPATH_GET_VOLUME )
1140     {
1141         fullpath += wxGetVolumeString(GetVolume(), format);
1142     }
1143
1144     // the leading character
1145     if ( format == wxPATH_MAC )
1146     {
1147         if ( m_relative )
1148             fullpath += wxFILE_SEP_PATH_MAC;
1149     }
1150     else if ( format == wxPATH_DOS )
1151     {
1152         if (!m_relative)
1153             fullpath += wxFILE_SEP_PATH_DOS;
1154     }
1155     else if ( format == wxPATH_UNIX )
1156     {
1157         if (!m_relative)
1158             fullpath += wxFILE_SEP_PATH_UNIX;
1159     }
1160
1161     // then concatenate all the path components using the path separator
1162     size_t dirCount = m_dirs.GetCount();
1163     if ( dirCount )
1164     {
1165         if ( format == wxPATH_VMS )
1166         {
1167             fullpath += wxT('[');
1168         }
1169
1170         for ( size_t i = 0; i < dirCount; i++ )
1171         {
1172             // TODO: What to do with ".." under VMS
1173
1174             switch (format)
1175             {
1176                 case wxPATH_MAC:
1177                 {
1178                     if (m_dirs[i] == wxT("."))
1179                         break;
1180                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1181                          fullpath += m_dirs[i];
1182                     fullpath += wxT(':');
1183                     break;
1184                 }
1185                 case wxPATH_DOS:
1186                 {
1187                     fullpath += m_dirs[i];
1188                     fullpath += wxT('\\');
1189                     break;
1190                 }
1191                 case wxPATH_UNIX:
1192                 {
1193                     fullpath += m_dirs[i];
1194                     fullpath += wxT('/');
1195                     break;
1196                 }
1197                 case wxPATH_VMS:
1198                 {
1199                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1200                         fullpath += m_dirs[i];
1201                     if (i == dirCount-1)
1202                         fullpath += wxT(']');
1203                     else
1204                         fullpath += wxT('.');
1205                     break;
1206                 }
1207                 default:
1208                 {
1209                     wxFAIL_MSG( wxT("error") );
1210                 }
1211             }
1212         }
1213     }
1214
1215     if ( (flags & wxPATH_GET_SEPARATOR) && !fullpath.empty() )
1216     {
1217         fullpath += GetPathSeparator(format);
1218     }
1219
1220     return fullpath;
1221 }
1222
1223 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1224 {
1225     format = GetFormat(format);
1226
1227     // first put the volume
1228     wxString fullpath = wxGetVolumeString(m_volume, format);
1229
1230     // the leading character
1231     if ( format == wxPATH_MAC )
1232     {
1233         if ( m_relative )
1234             fullpath += wxFILE_SEP_PATH_MAC;
1235     }
1236     else if ( format == wxPATH_DOS )
1237     {
1238         if ( !m_relative )
1239             fullpath += wxFILE_SEP_PATH_DOS;
1240     }
1241     else if ( format == wxPATH_UNIX )
1242     {
1243         if ( !m_relative )
1244         {
1245             // normally the absolute file names starts with a slash with one
1246             // exception: file names like "~/foo.bar" don't have it
1247             if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1248             {
1249                 fullpath += wxFILE_SEP_PATH_UNIX;
1250             }
1251         }
1252     }
1253
1254     // then concatenate all the path components using the path separator
1255     size_t dirCount = m_dirs.GetCount();
1256     if ( dirCount )
1257     {
1258         if ( format == wxPATH_VMS )
1259         {
1260             fullpath += wxT('[');
1261         }
1262
1263
1264         for ( size_t i = 0; i < dirCount; i++ )
1265         {
1266             // TODO: What to do with ".." under VMS
1267
1268             switch (format)
1269             {
1270                 case wxPATH_MAC:
1271                 {
1272                     if (m_dirs[i] == wxT("."))
1273                         break;
1274                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1275                          fullpath += m_dirs[i];
1276                     fullpath += wxT(':');
1277                     break;
1278                 }
1279                 case wxPATH_DOS:
1280                 {
1281                     fullpath += m_dirs[i];
1282                     fullpath += wxT('\\');
1283                     break;
1284                 }
1285                 case wxPATH_UNIX:
1286                 {
1287                     fullpath += m_dirs[i];
1288                     fullpath += wxT('/');
1289                     break;
1290                 }
1291                 case wxPATH_VMS:
1292                 {
1293                     if (m_dirs[i] != wxT(".."))  // convert back from ".." to nothing
1294                         fullpath += m_dirs[i];
1295                     if (i == dirCount-1)
1296                         fullpath += wxT(']');
1297                     else
1298                         fullpath += wxT('.');
1299                     break;
1300                 }
1301                 default:
1302                 {
1303                     wxFAIL_MSG( wxT("error") );
1304                 }
1305             }
1306         }
1307     }
1308
1309     // finally add the file name and extension
1310     fullpath += GetFullName();
1311
1312     return fullpath;
1313 }
1314
1315 // Return the short form of the path (returns identity on non-Windows platforms)
1316 wxString wxFileName::GetShortPath() const
1317 {
1318 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1319     wxString path(GetFullPath());
1320     wxString pathOut;
1321     DWORD sz = ::GetShortPathName(path, NULL, 0);
1322     bool ok = sz != 0;
1323     if ( ok )
1324     {
1325         ok = ::GetShortPathName
1326                (
1327                 path,
1328                 pathOut.GetWriteBuf(sz),
1329                 sz
1330                ) != 0;
1331         pathOut.UngetWriteBuf();
1332     }
1333     if (ok)
1334         return pathOut;
1335
1336     return path;
1337 #else
1338     return GetFullPath();
1339 #endif
1340 }
1341
1342 // Return the long form of the path (returns identity on non-Windows platforms)
1343 wxString wxFileName::GetLongPath() const
1344 {
1345     wxString pathOut,
1346              path = GetFullPath();
1347
1348 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1349     bool success = FALSE;
1350
1351 #if wxUSE_DYNAMIC_LOADER
1352     typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1353
1354     static bool s_triedToLoad = FALSE;
1355
1356     if ( !s_triedToLoad )
1357     {
1358         s_triedToLoad = TRUE;
1359         wxDynamicLibrary dllKernel(_T("kernel32"));
1360         if ( dllKernel.IsLoaded() )
1361         {
1362             // may succeed or fail depending on the Windows version
1363             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1364 #ifdef _UNICODE
1365             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1366 #else
1367             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1368 #endif
1369
1370             if ( s_pfnGetLongPathName )
1371             {
1372                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1373                 bool ok = dwSize > 0;
1374
1375                 if ( ok )
1376                 {
1377                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1378                     ok = sz != 0;
1379                     if ( ok )
1380                     {
1381                         ok = (*s_pfnGetLongPathName)
1382                                 (
1383                                 path,
1384                                 pathOut.GetWriteBuf(sz),
1385                                 sz
1386                                 ) != 0;
1387                         pathOut.UngetWriteBuf();
1388
1389                         success = TRUE;
1390                     }
1391                 }
1392             }
1393         }
1394     }
1395     if (success)
1396         return pathOut;
1397 #endif // wxUSE_DYNAMIC_LOADER
1398
1399     if (!success)
1400     {
1401         // The OS didn't support GetLongPathName, or some other error.
1402         // We need to call FindFirstFile on each component in turn.
1403
1404         WIN32_FIND_DATA findFileData;
1405         HANDLE hFind;
1406         pathOut = wxEmptyString;
1407
1408         wxArrayString dirs = GetDirs();
1409         dirs.Add(GetFullName());
1410
1411         wxString tmpPath;
1412
1413         size_t count = dirs.GetCount();
1414         for ( size_t i = 0; i < count; i++ )
1415         {
1416             // We're using pathOut to collect the long-name path, but using a
1417             // temporary for appending the last path component which may be
1418             // short-name
1419             tmpPath = pathOut + dirs[i];
1420
1421             if ( tmpPath.empty() )
1422                 continue;
1423
1424             if ( tmpPath.Last() == wxT(':') )
1425             {
1426                 // Can't pass a drive and root dir to FindFirstFile,
1427                 // so continue to next dir
1428                 tmpPath += wxFILE_SEP_PATH;
1429                 pathOut = tmpPath;
1430                 continue;
1431             }
1432
1433             hFind = ::FindFirstFile(tmpPath, &findFileData);
1434             if (hFind == INVALID_HANDLE_VALUE)
1435             {
1436                 // Error: return immediately with the original path
1437                 return path;
1438             }
1439
1440             pathOut += findFileData.cFileName;
1441             if ( (i < (count-1)) )
1442                 pathOut += wxFILE_SEP_PATH;
1443
1444             ::FindClose(hFind);
1445         }
1446     }
1447 #else // !Win32
1448     pathOut = path;
1449 #endif // Win32/!Win32
1450
1451     return pathOut;
1452 }
1453
1454 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1455 {
1456     if (format == wxPATH_NATIVE)
1457     {
1458 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1459         format = wxPATH_DOS;
1460 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1461         format = wxPATH_MAC;
1462 #elif defined(__VMS)
1463         format = wxPATH_VMS;
1464 #else
1465         format = wxPATH_UNIX;
1466 #endif
1467     }
1468     return format;
1469 }
1470
1471 // ----------------------------------------------------------------------------
1472 // path splitting function
1473 // ----------------------------------------------------------------------------
1474
1475 /* static */
1476 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1477                            wxString *pstrVolume,
1478                            wxString *pstrPath,
1479                            wxString *pstrName,
1480                            wxString *pstrExt,
1481                            wxPathFormat format)
1482 {
1483     format = GetFormat(format);
1484
1485     wxString fullpath = fullpathWithVolume;
1486
1487     // under VMS the end of the path is ']', not the path separator used to
1488     // separate the components
1489     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1490                                             : GetPathSeparators(format);
1491
1492     // special Windows UNC paths hack: transform \\share\path into share:path
1493     if ( format == wxPATH_DOS )
1494     {
1495         if ( fullpath.length() >= 4 &&
1496                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1497                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1498         {
1499             fullpath.erase(0, 2);
1500
1501             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1502             if ( posFirstSlash != wxString::npos )
1503             {
1504                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1505
1506                 // UNC paths are always absolute, right? (FIXME)
1507                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1508             }
1509         }
1510     }
1511
1512     // We separate the volume here
1513     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1514     {
1515         wxString sepVol = GetVolumeSeparator(format);
1516
1517         size_t posFirstColon = fullpath.find_first_of(sepVol);
1518         if ( posFirstColon != wxString::npos )
1519         {
1520             if ( pstrVolume )
1521             {
1522                 *pstrVolume = fullpath.Left(posFirstColon);
1523             }
1524
1525             // remove the volume name and the separator from the full path
1526             fullpath.erase(0, posFirstColon + sepVol.length());
1527         }
1528     }
1529
1530     // find the positions of the last dot and last path separator in the path
1531     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1532     size_t posLastSlash = fullpath.find_last_of(sepPath);
1533
1534     if ( (posLastDot != wxString::npos) &&
1535             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1536     {
1537         if ( (posLastDot == 0) ||
1538              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1539         {
1540             // under Unix and VMS, dot may be (and commonly is) the first
1541             // character of the filename, don't treat the entire filename as
1542             // extension in this case
1543             posLastDot = wxString::npos;
1544         }
1545     }
1546
1547     // if we do have a dot and a slash, check that the dot is in the name part
1548     if ( (posLastDot != wxString::npos) &&
1549          (posLastSlash != wxString::npos) &&
1550          (posLastDot < posLastSlash) )
1551     {
1552         // the dot is part of the path, not the start of the extension
1553         posLastDot = wxString::npos;
1554     }
1555
1556     // now fill in the variables provided by user
1557     if ( pstrPath )
1558     {
1559         if ( posLastSlash == wxString::npos )
1560         {
1561             // no path at all
1562             pstrPath->Empty();
1563         }
1564         else
1565         {
1566             // take everything up to the path separator but take care to make
1567             // the path equal to something like '/', not empty, for the files
1568             // immediately under root directory
1569             size_t len = posLastSlash;
1570
1571             // this rule does not apply to mac since we do not start with colons (sep)
1572             // except for relative paths
1573             if ( !len && format != wxPATH_MAC)
1574                 len++;
1575
1576             *pstrPath = fullpath.Left(len);
1577
1578             // special VMS hack: remove the initial bracket
1579             if ( format == wxPATH_VMS )
1580             {
1581                 if ( (*pstrPath)[0u] == _T('[') )
1582                     pstrPath->erase(0, 1);
1583             }
1584         }
1585     }
1586
1587     if ( pstrName )
1588     {
1589         // take all characters starting from the one after the last slash and
1590         // up to, but excluding, the last dot
1591         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1592         size_t count;
1593         if ( posLastDot == wxString::npos )
1594         {
1595             // take all until the end
1596             count = wxString::npos;
1597         }
1598         else if ( posLastSlash == wxString::npos )
1599         {
1600             count = posLastDot;
1601         }
1602         else // have both dot and slash
1603         {
1604             count = posLastDot - posLastSlash - 1;
1605         }
1606
1607         *pstrName = fullpath.Mid(nStart, count);
1608     }
1609
1610     if ( pstrExt )
1611     {
1612         if ( posLastDot == wxString::npos )
1613         {
1614             // no extension
1615             pstrExt->Empty();
1616         }
1617         else
1618         {
1619             // take everything after the dot
1620             *pstrExt = fullpath.Mid(posLastDot + 1);
1621         }
1622     }
1623 }
1624
1625 /* static */
1626 void wxFileName::SplitPath(const wxString& fullpath,
1627                            wxString *path,
1628                            wxString *name,
1629                            wxString *ext,
1630                            wxPathFormat format)
1631 {
1632     wxString volume;
1633     SplitPath(fullpath, &volume, path, name, ext, format);
1634
1635     if ( path )
1636     {
1637         path->Prepend(wxGetVolumeString(volume, format));
1638     }
1639 }
1640
1641 // ----------------------------------------------------------------------------
1642 // time functions
1643 // ----------------------------------------------------------------------------
1644
1645 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
1646                           const wxDateTime *dtMod,
1647                           const wxDateTime *dtCreate)
1648 {
1649 #if defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1650     if ( !dtAccess && !dtMod )
1651     {
1652         // can't modify the creation time anyhow, don't try
1653         return TRUE;
1654     }
1655
1656     // if dtAccess or dtMod is not specified, use the other one (which must be
1657     // non NULL because of the test above) for both times
1658     utimbuf utm;
1659     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1660     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1661     if ( utime(GetFullPath(), &utm) == 0 )
1662     {
1663         return TRUE;
1664     }
1665 #elif defined(__WIN32__)
1666     wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
1667     if ( fh.IsOk() )
1668     {
1669         FILETIME ftAccess, ftCreate, ftWrite;
1670
1671         if ( dtCreate )
1672             ConvertWxToFileTime(&ftCreate, *dtCreate);
1673         if ( dtAccess )
1674             ConvertWxToFileTime(&ftAccess, *dtAccess);
1675         if ( dtMod )
1676             ConvertWxToFileTime(&ftWrite, *dtMod);
1677
1678         if ( ::SetFileTime(fh,
1679                            dtCreate ? &ftCreate : NULL,
1680                            dtAccess ? &ftAccess : NULL,
1681                            dtMod ? &ftWrite : NULL) )
1682         {
1683             return TRUE;
1684         }
1685     }
1686 #else // other platform
1687 #endif // platforms
1688
1689     wxLogSysError(_("Failed to modify file times for '%s'"),
1690                   GetFullPath().c_str());
1691
1692     return FALSE;
1693 }
1694
1695 bool wxFileName::Touch()
1696 {
1697 #if defined(__UNIX_LIKE__)
1698     // under Unix touching file is simple: just pass NULL to utime()
1699     if ( utime(GetFullPath(), NULL) == 0 )
1700     {
1701         return TRUE;
1702     }
1703
1704     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1705
1706     return FALSE;
1707 #else // other platform
1708     wxDateTime dtNow = wxDateTime::Now();
1709
1710     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
1711 #endif // platforms
1712 }
1713
1714 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1715                           wxDateTime *dtMod,
1716                           wxDateTime *dtCreate) const
1717 {
1718 #if defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1719     wxStructStat stBuf;
1720     if ( wxStat(GetFullPath(), &stBuf) == 0 )
1721     {
1722         if ( dtAccess )
1723             dtAccess->Set(stBuf.st_atime);
1724         if ( dtMod )
1725             dtMod->Set(stBuf.st_mtime);
1726         if ( dtCreate )
1727             dtCreate->Set(stBuf.st_ctime);
1728
1729         return TRUE;
1730     }
1731 #elif defined(__WIN32__)
1732     wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
1733     if ( fh.IsOk() )
1734     {
1735         FILETIME ftAccess, ftCreate, ftWrite;
1736
1737         if ( ::GetFileTime(fh,
1738                            dtMod ? &ftCreate : NULL,
1739                            dtAccess ? &ftAccess : NULL,
1740                            dtCreate ? &ftWrite : NULL) )
1741         {
1742             if ( dtMod )
1743                 ConvertFileTimeToWx(dtMod, ftCreate);
1744             if ( dtAccess )
1745                 ConvertFileTimeToWx(dtAccess, ftAccess);
1746             if ( dtCreate )
1747                 ConvertFileTimeToWx(dtCreate, ftWrite);
1748
1749             return TRUE;
1750         }
1751     }
1752 #else // other platform
1753 #endif // platforms
1754
1755     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1756                   GetFullPath().c_str());
1757
1758     return FALSE;
1759 }
1760
1761 #ifdef __WXMAC__
1762
1763 const short kMacExtensionMaxLength = 16 ;
1764 typedef struct
1765 {
1766   char m_ext[kMacExtensionMaxLength] ;
1767   OSType m_type ;
1768   OSType m_creator ;
1769 } MacDefaultExtensionRecord ;
1770
1771 #include "wx/dynarray.h"
1772 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
1773 #include "wx/arrimpl.cpp"
1774 WX_DEFINE_OBJARRAY(MacDefaultExtensionArray) ;
1775
1776 MacDefaultExtensionArray gMacDefaultExtensions ;
1777 bool gMacDefaultExtensionsInited = false ;
1778
1779 static void MacEnsureDefaultExtensionsLoaded()
1780 {
1781   if ( !gMacDefaultExtensionsInited )
1782   {
1783     // load the default extensions
1784     MacDefaultExtensionRecord defaults[] =
1785     {
1786       { "txt" , 'TEXT' , 'ttxt' } ,
1787
1788     } ;
1789     // we could load the pc exchange prefs here too
1790
1791     for ( int i = 0 ; i < WXSIZEOF( defaults ) ; ++i )
1792     {
1793       gMacDefaultExtensions.Add( defaults[i] ) ;
1794     }
1795     gMacDefaultExtensionsInited = true ;
1796   }
1797 }
1798 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
1799 {
1800   FInfo fndrInfo ;
1801   FSSpec spec ;
1802   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1803   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1804   wxCHECK( err == noErr , false ) ;
1805
1806   fndrInfo.fdType = type ;
1807   fndrInfo.fdCreator = creator ;
1808   FSpSetFInfo( &spec , &fndrInfo ) ;
1809   return true ;
1810 }
1811
1812 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
1813 {
1814   FInfo fndrInfo ;
1815   FSSpec spec ;
1816   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1817   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1818   wxCHECK( err == noErr , false ) ;
1819
1820   *type = fndrInfo.fdType ;
1821   *creator = fndrInfo.fdCreator ;
1822   return true ;
1823 }
1824
1825 bool wxFileName::MacSetDefaultTypeAndCreator()
1826 {
1827     wxUint32 type , creator ;
1828     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
1829       &creator ) )
1830     {
1831         return MacSetTypeAndCreator( type , creator ) ;
1832     }
1833     return false;
1834 }
1835
1836 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
1837 {
1838   MacEnsureDefaultExtensionsLoaded() ;
1839   wxString extl = ext.Lower() ;
1840   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
1841   {
1842     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
1843     {
1844       *type = gMacDefaultExtensions.Item(i).m_type ;
1845       *creator = gMacDefaultExtensions.Item(i).m_creator ;
1846       return true ;
1847     }
1848   }
1849   return false ;
1850 }
1851
1852 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
1853 {
1854   MacEnsureDefaultExtensionsLoaded() ;
1855   MacDefaultExtensionRecord rec ;
1856   rec.m_type = type ;
1857   rec.m_creator = creator ;
1858   strncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
1859   gMacDefaultExtensions.Add( rec ) ;
1860 }
1861 #endif