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