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