src/common/filename.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/filename.cpp
   3 // Purpose:     wxFileName - encapsulates a file path
   4 // Author:      Robert Roebling, Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.12.2000
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 Robert Roebling
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 /*
  13    Here are brief descriptions of the filename formats supported by this class:
  14
  15    wxPATH_UNIX: standard Unix format, used under Darwin as well, absolute file
  16                 names have the form:
  17                 /dir1/dir2/.../dirN/filename, "." and ".." stand for the
  18                 current and parent directory respectively, "~" is parsed as the
  19                 user HOME and "~username" as the HOME of that user
  20
  21    wxPATH_DOS:  DOS/Windows format, absolute file names have the form:
  22                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
  23                 letter. "." and ".." as for Unix but no "~".
  24
  25                 There are also UNC names of the form \\share\fullpath
  26
  27    wxPATH_MAC:  Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
  28                 names have the form
  29                     volume:dir1:...:dirN:filename
  30                 and the relative file names are either
  31                     :dir1:...:dirN:filename
  32                 or just
  33                     filename
  34                 (although :filename works as well).
  35                 Since the volume is just part of the file path, it is not
  36                 treated like a separate entity as it is done under DOS and
  37                 VMS, it is just treated as another dir.
  38
  39    wxPATH_VMS:  VMS native format, absolute file names have the form
  40                     <device>:[dir1.dir2.dir3]file.txt
  41                 or
  42                     <device>:[000000.dir1.dir2.dir3]file.txt
  43
  44                 the <device> is the physical device (i.e. disk). 000000 is the
  45                 root directory on the device which can be omitted.
  46
  47                 Note that VMS uses different separators unlike Unix:
  48                  : always after the device. If the path does not contain : than
  49                    the default (the device of the current directory) is assumed.
  50                  [ start of directory specyfication
  51                  . separator between directory and subdirectory
  52                  ] between directory and file
  53  */
  54
  55 // ============================================================================
  56 // declarations
  57 // ============================================================================
  58
  59 // ----------------------------------------------------------------------------
  60 // headers
  61 // ----------------------------------------------------------------------------
  62
  63 #ifdef __GNUG__
  64 #pragma implementation "filename.h"
  65 #endif
  66
  67 // For compilers that support precompilation, includes "wx.h".
  68 #include "wx/wxprec.h"
  69
  70 #ifdef __BORLANDC__
  71 #pragma hdrstop
  72 #endif
  73
  74 #ifndef WX_PRECOMP
  75 #include "wx/intl.h"
  76 #include "wx/log.h"
  77 #include "wx/file.h"
  78 #endif
  79
  80 #include "wx/filename.h"
  81 #include "wx/tokenzr.h"
  82 #include "wx/config.h"          // for wxExpandEnvVars
  83 #include "wx/utils.h"
  84 #include "wx/file.h"
  85 #include "wx/dynlib.h"
  86
  87 // For GetShort/LongPathName
  88 #ifdef __WIN32__
  89 #include <windows.h>
  90 #include "wx/msw/winundef.h"
  91 #endif
  92
  93 #if defined(__WXMAC__)
  94   #include  "wx/mac/private.h"  // includes mac headers
  95 #endif
  96
  97 // utime() is POSIX so should normally be available on all Unices
  98 #ifdef __UNIX_LIKE__
  99 #include <sys/types.h>
 100 #include <utime.h>
 101 #include <sys/stat.h>
 102 #include <unistd.h>
 103 #endif
 104
 105 #ifdef __DJGPP__
 106 #include <unistd.h>
 107 #endif
 108
 109 #ifdef __MWERKS__
 110 #include <stat.h>
 111 #include <unistd.h>
 112 #include <unix.h>
 113 #endif
 114
 115 #ifdef __WATCOMC__
 116 #include <io.h>
 117 #include <sys/utime.h>
 118 #include <sys/stat.h>
 119 #endif
 120
 121 #ifdef __VISAGECPP__
 122 #ifndef MAX_PATH
 123 #define MAX_PATH 256
 124 #endif
 125 #endif
 126
 127 #ifdef __EMX__
 128 #define MAX_PATH _MAX_PATH
 129 #endif
 130
 131 // ----------------------------------------------------------------------------
 132 // private classes
 133 // ----------------------------------------------------------------------------
 134
 135 // small helper class which opens and closes the file - we use it just to get
 136 // a file handle for the given file name to pass it to some Win32 API function
 137 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 138
 139 class wxFileHandle
 140 {
 141 public:
 142     enum OpenMode
 143     {
 144         Read,
 145         Write
 146     };
 147
 148     wxFileHandle(const wxString& filename, OpenMode mode)
 149     {
 150         m_hFile = ::CreateFile
 151                     (
 152                      filename,                      // name
 153                      mode == Read ? GENERIC_READ    // access mask
 154                                   : GENERIC_WRITE,
 155                      0,                             // no sharing
 156                      NULL,                          // no secutity attr
 157                      OPEN_EXISTING,                 // creation disposition
 158                      0,                             // no flags
 159                      NULL                           // no template file
 160                     );
 161
 162         if ( m_hFile == INVALID_HANDLE_VALUE )
 163         {
 164             wxLogSysError(_("Failed to open '%s' for %s"),
 165                           filename.c_str(),
 166                           mode == Read ? _("reading") : _("writing"));
 167         }
 168     }
 169
 170     ~wxFileHandle()
 171     {
 172         if ( m_hFile != INVALID_HANDLE_VALUE )
 173         {
 174             if ( !::CloseHandle(m_hFile) )
 175             {
 176                 wxLogSysError(_("Failed to close file handle"));
 177             }
 178         }
 179     }
 180
 181     // return TRUE only if the file could be opened successfully
 182     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 183
 184     // get the handle
 185     operator HANDLE() const { return m_hFile; }
 186
 187 private:
 188     HANDLE m_hFile;
 189 };
 190
 191 #endif // __WIN32__
 192
 193 // ----------------------------------------------------------------------------
 194 // private functions
 195 // ----------------------------------------------------------------------------
 196
 197 #if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
 198
 199 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 200 // the number of 100-nanosecond intervals since January 1, 1601.
 201
 202 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 203 {
 204     FILETIME ftcopy = ft;
 205     FILETIME ftLocal;
 206     if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
 207     {
 208         wxLogLastError(_T("FileTimeToLocalFileTime"));
 209     }
 210
 211     SYSTEMTIME st;
 212     if ( !::FileTimeToSystemTime(&ftLocal, &st) )
 213     {
 214         wxLogLastError(_T("FileTimeToSystemTime"));
 215     }
 216
 217     dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
 218             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
 219 }
 220
 221 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 222 {
 223     SYSTEMTIME st;
 224     st.wDay = dt.GetDay();
 225     st.wMonth = dt.GetMonth() + 1;
 226     st.wYear = dt.GetYear();
 227     st.wHour = dt.GetHour();
 228     st.wMinute = dt.GetMinute();
 229     st.wSecond = dt.GetSecond();
 230     st.wMilliseconds = dt.GetMillisecond();
 231
 232     FILETIME ftLocal;
 233     if ( !::SystemTimeToFileTime(&st, &ftLocal) )
 234     {
 235         wxLogLastError(_T("SystemTimeToFileTime"));
 236     }
 237
 238     if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
 239     {
 240         wxLogLastError(_T("LocalFileTimeToFileTime"));
 241     }
 242 }
 243
 244 #endif // wxUSE_DATETIME && __WIN32__
 245
 246 // return a string with the volume par
 247 static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
 248 {
 249     wxString path;
 250
 251     if ( !volume.empty() )
 252     {
 253         format = wxFileName::GetFormat(format);
 254
 255         // Special Windows UNC paths hack, part 2: undo what we did in
 256         // SplitPath() and make an UNC path if we have a drive which is not a
 257         // single letter (hopefully the network shares can't be one letter only
 258         // although I didn't find any authoritative docs on this)
 259         if ( format == wxPATH_DOS && volume.length() > 1 )
 260         {
 261             path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
 262         }
 263         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
 264         {
 265             path << volume << wxFileName::GetVolumeSeparator(format);
 266         }
 267         // else ignore
 268     }
 269
 270     return path;
 271 }
 272
 273 // ============================================================================
 274 // implementation
 275 // ============================================================================
 276
 277 // ----------------------------------------------------------------------------
 278 // wxFileName construction
 279 // ----------------------------------------------------------------------------
 280
 281 void wxFileName::Assign( const wxFileName &filepath )
 282 {
 283     m_volume = filepath.GetVolume();
 284     m_dirs = filepath.GetDirs();
 285     m_name = filepath.GetName();
 286     m_ext = filepath.GetExt();
 287     m_relative = filepath.m_relative;
 288 }
 289
 290 void wxFileName::Assign(const wxString& volume,
 291                         const wxString& path,
 292                         const wxString& name,
 293                         const wxString& ext,
 294                         wxPathFormat format )
 295 {
 296     SetPath( path, format );
 297
 298     m_volume = volume;
 299     m_ext = ext;
 300     m_name = name;
 301 }
 302
 303 void wxFileName::SetPath( const wxString &path, wxPathFormat format )
 304 {
 305     m_dirs.Clear();
 306
 307     if ( !path.empty() )
 308     {
 309         wxPathFormat my_format = GetFormat( format );
 310         wxString my_path = path;
 311
 312         // 1) Determine if the path is relative or absolute.
 313         wxChar leadingChar = my_path[0u];
 314
 315         switch (my_format)
 316         {
 317             case wxPATH_MAC:
 318                 m_relative = leadingChar == wxT(':');
 319
 320                 // We then remove a leading ":". The reason is in our
 321                 // storage form for relative paths:
 322                 // ":dir:file.txt" actually means "./dir/file.txt" in
 323                 // DOS notation and should get stored as
 324                 // (relative) (dir) (file.txt)
 325                 // "::dir:file.txt" actually means "../dir/file.txt"
 326                 // stored as (relative) (..) (dir) (file.txt)
 327                 // This is important only for the Mac as an empty dir
 328                 // actually means <UP>, whereas under DOS, double
 329                 // slashes can be ignored: "\\\\" is the same as "\\".
 330                 if (m_relative)
 331                     my_path.erase( 0, 1 );
 332                 break;
 333
 334             case wxPATH_VMS:
 335                 // TODO: what is the relative path format here?
 336                 m_relative = FALSE;
 337                 break;
 338
 339             case wxPATH_UNIX:
 340                 // the paths of the form "~" or "~username" are absolute
 341                 m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
 342                 break;
 343
 344             case wxPATH_DOS:
 345                 m_relative = !IsPathSeparator(leadingChar, my_format);
 346                 break;
 347
 348             default:
 349                 wxFAIL_MSG( wxT("error") );
 350                 break;
 351         }
 352
 353         // 2) Break up the path into its members. If the original path
 354         //    was just "/" or "\\", m_dirs will be empty. We know from
 355         //    the m_relative field, if this means "nothing" or "root dir".
 356
 357         wxStringTokenizer tn( my_path, GetPathSeparators(my_format) );
 358
 359         while ( tn.HasMoreTokens() )
 360         {
 361             wxString token = tn.GetNextToken();
 362
 363             // Remove empty token under DOS and Unix, interpret them
 364             // as .. under Mac.
 365             if (token.empty())
 366             {
 367                 if (my_format == wxPATH_MAC)
 368                     m_dirs.Add( wxT("..") );
 369                 // else ignore
 370             }
 371             else
 372             {
 373                m_dirs.Add( token );
 374             }
 375         }
 376     }
 377     else // no path at all
 378     {
 379         m_relative = TRUE;
 380     }
 381 }
 382
 383 void wxFileName::Assign(const wxString& fullpath,
 384                         wxPathFormat format)
 385 {
 386     wxString volume, path, name, ext;
 387     SplitPath(fullpath, &volume, &path, &name, &ext, format);
 388
 389     Assign(volume, path, name, ext, format);
 390 }
 391
 392 void wxFileName::Assign(const wxString& fullpathOrig,
 393                         const wxString& fullname,
 394                         wxPathFormat format)
 395 {
 396     // always recognize fullpath as directory, even if it doesn't end with a
 397     // slash
 398     wxString fullpath = fullpathOrig;
 399     if ( !wxEndsWithPathSeparator(fullpath) )
 400     {
 401         fullpath += GetPathSeparator(format);
 402     }
 403
 404     wxString volume, path, name, ext;
 405
 406     // do some consistency checks in debug mode: the name should be really just
 407     // the filename and the path should be really just a path
 408 #ifdef __WXDEBUG__
 409     wxString pathDummy, nameDummy, extDummy;
 410
 411     SplitPath(fullname, &pathDummy, &name, &ext, format);
 412
 413     wxASSERT_MSG( pathDummy.empty(),
 414                   _T("the file name shouldn't contain the path") );
 415
 416     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 417
 418     wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
 419                   _T("the path shouldn't contain file name nor extension") );
 420
 421 #else // !__WXDEBUG__
 422     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 423     SplitPath(fullpath, &volume, &path, NULL, NULL, format);
 424 #endif // __WXDEBUG__/!__WXDEBUG__
 425
 426     Assign(volume, path, name, ext, format);
 427 }
 428
 429 void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 430 {
 431     Assign(dir, _T(""), format);
 432 }
 433
 434 void wxFileName::Clear()
 435 {
 436     m_dirs.Clear();
 437
 438     m_volume =
 439     m_name =
 440     m_ext = wxEmptyString;
 441
 442     // we don't have any absolute path for now
 443     m_relative = TRUE;
 444 }
 445
 446 /* static */
 447 wxFileName wxFileName::FileName(const wxString& file)
 448 {
 449     return wxFileName(file);
 450 }
 451
 452 /* static */
 453 wxFileName wxFileName::DirName(const wxString& dir)
 454 {
 455     wxFileName fn;
 456     fn.AssignDir(dir);
 457     return fn;
 458 }
 459
 460 // ----------------------------------------------------------------------------
 461 // existence tests
 462 // ----------------------------------------------------------------------------
 463
 464 bool wxFileName::FileExists() const
 465 {
 466     return wxFileName::FileExists( GetFullPath() );
 467 }
 468
 469 bool wxFileName::FileExists( const wxString &file )
 470 {
 471     return ::wxFileExists( file );
 472 }
 473
 474 bool wxFileName::DirExists() const
 475 {
 476     return wxFileName::DirExists( GetFullPath() );
 477 }
 478
 479 bool wxFileName::DirExists( const wxString &dir )
 480 {
 481     return ::wxDirExists( dir );
 482 }
 483
 484 // ----------------------------------------------------------------------------
 485 // CWD and HOME stuff
 486 // ----------------------------------------------------------------------------
 487
 488 void wxFileName::AssignCwd(const wxString& volume)
 489 {
 490     AssignDir(wxFileName::GetCwd(volume));
 491 }
 492
 493 /* static */
 494 wxString wxFileName::GetCwd(const wxString& volume)
 495 {
 496     // if we have the volume, we must get the current directory on this drive
 497     // and to do this we have to chdir to this volume - at least under Windows,
 498     // I don't know how to get the current drive on another volume elsewhere
 499     // (TODO)
 500     wxString cwdOld;
 501     if ( !volume.empty() )
 502     {
 503         cwdOld = wxGetCwd();
 504         SetCwd(volume + GetVolumeSeparator());
 505     }
 506
 507     wxString cwd = ::wxGetCwd();
 508
 509     if ( !volume.empty() )
 510     {
 511         SetCwd(cwdOld);
 512     }
 513
 514     return cwd;
 515 }
 516
 517 bool wxFileName::SetCwd()
 518 {
 519     return wxFileName::SetCwd( GetFullPath() );
 520 }
 521
 522 bool wxFileName::SetCwd( const wxString &cwd )
 523 {
 524     return ::wxSetWorkingDirectory( cwd );
 525 }
 526
 527 void wxFileName::AssignHomeDir()
 528 {
 529     AssignDir(wxFileName::GetHomeDir());
 530 }
 531
 532 wxString wxFileName::GetHomeDir()
 533 {
 534     return ::wxGetHomeDir();
 535 }
 536
 537 void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
 538 {
 539     wxString tempname = CreateTempFileName(prefix, fileTemp);
 540     if ( tempname.empty() )
 541     {
 542         // error, failed to get temp file name
 543         Clear();
 544     }
 545     else // ok
 546     {
 547         Assign(tempname);
 548     }
 549 }
 550
 551 /* static */
 552 wxString
 553 wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
 554 {
 555     wxString path, dir, name;
 556
 557     // use the directory specified by the prefix
 558     SplitPath(prefix, &dir, &name, NULL /* extension */);
 559
 560 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 561
 562 #ifdef __WIN32__
 563     if ( dir.empty() )
 564     {
 565         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
 566         {
 567             wxLogLastError(_T("GetTempPath"));
 568         }
 569
 570         if ( dir.empty() )
 571         {
 572             // GetTempFileName() fails if we pass it an empty string
 573             dir = _T('.');
 574         }
 575     }
 576     else // we have a dir to create the file in
 577     {
 578         // ensure we use only the back slashes as GetTempFileName(), unlike all
 579         // the other APIs, is picky and doesn't accept the forward ones
 580         dir.Replace(_T("/"), _T("\\"));
 581     }
 582
 583     if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
 584     {
 585         wxLogLastError(_T("GetTempFileName"));
 586
 587         path.clear();
 588     }
 589 #else // Win16
 590     if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
 591     {
 592         path.clear();
 593     }
 594 #endif // Win32/16
 595
 596 #elif defined(__WXPM__)
 597     // for now just create a file
 598     //
 599     // future enhancements can be to set some extended attributes for file
 600     // systems OS/2 supports that have them (HPFS, FAT32) and security
 601     // (HPFS386)
 602     static const wxChar *szMktempSuffix = wxT("XXX");
 603     path << dir << _T('/') << name << szMktempSuffix;
 604
 605     // Temporarily remove - MN
 606     #ifndef __WATCOMC__
 607         ::DosCreateDir(wxStringBuffer(path, MAX_PATH), NULL);
 608     #endif
 609
 610 #else // !Windows, !OS/2
 611     if ( dir.empty() )
 612     {
 613 #if defined(__WXMAC__) && !defined(__DARWIN__)
 614         dir = wxMacFindFolder(  (short) kOnSystemDisk, kTemporaryFolderType, kCreateFolder ) ;
 615 #else // !Mac
 616         dir = wxGetenv(_T("TMP"));
 617         if ( dir.empty() )
 618         {
 619             dir = wxGetenv(_T("TEMP"));
 620         }
 621
 622         if ( dir.empty() )
 623         {
 624             // default
 625             #ifdef __DOS__
 626                 dir = _T(".");
 627             #else
 628                 dir = _T("/tmp");
 629             #endif
 630         }
 631 #endif // Mac/!Mac
 632     }
 633
 634     path = dir;
 635
 636     if ( !wxEndsWithPathSeparator(dir) &&
 637             (name.empty() || !wxIsPathSeparator(name[0u])) )
 638     {
 639         path += wxFILE_SEP_PATH;
 640     }
 641
 642     path += name;
 643
 644 #if defined(HAVE_MKSTEMP)
 645     // scratch space for mkstemp()
 646     path += _T("XXXXXX");
 647
 648     // we need to copy the path to the buffer in which mkstemp() can modify it
 649     wxCharBuffer buf( wxConvFile.cWX2MB( path ) );
 650
 651     // cast is safe because the string length doesn't change
 652     int fdTemp = mkstemp( (char*)(const char*) buf );
 653     if ( fdTemp == -1 )
 654     {
 655         // this might be not necessary as mkstemp() on most systems should have
 656         // already done it but it doesn't hurt neither...
 657         path.clear();
 658     }
 659     else // mkstemp() succeeded
 660     {
 661         path = wxConvFile.cMB2WX( (const char*) buf );
 662
 663         // avoid leaking the fd
 664         if ( fileTemp )
 665         {
 666             fileTemp->Attach(fdTemp);
 667         }
 668         else
 669         {
 670             close(fdTemp);
 671         }
 672     }
 673 #else // !HAVE_MKSTEMP
 674
 675 #ifdef HAVE_MKTEMP
 676     // same as above
 677     path += _T("XXXXXX");
 678
 679     wxCharBuffer buf = wxConvFile.cWX2MB( path );
 680     if ( !mktemp( (const char*) buf ) )
 681     {
 682         path.clear();
 683     }
 684     else
 685     {
 686         path = wxConvFile.cMB2WX( (const char*) buf );
 687     }
 688 #else // !HAVE_MKTEMP (includes __DOS__)
 689     // generate the unique file name ourselves
 690     #ifndef __DOS__
 691     path << (unsigned int)getpid();
 692     #endif
 693
 694     wxString pathTry;
 695
 696     static const size_t numTries = 1000;
 697     for ( size_t n = 0; n < numTries; n++ )
 698     {
 699         // 3 hex digits is enough for numTries == 1000 < 4096
 700         pathTry = path + wxString::Format(_T("%.03x"), n);
 701         if ( !wxFile::Exists(pathTry) )
 702         {
 703             break;
 704         }
 705
 706         pathTry.clear();
 707     }
 708
 709     path = pathTry;
 710 #endif // HAVE_MKTEMP/!HAVE_MKTEMP
 711
 712     if ( !path.empty() )
 713     {
 714     }
 715 #endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
 716
 717 #endif // Windows/!Windows
 718
 719     if ( path.empty() )
 720     {
 721         wxLogSysError(_("Failed to create a temporary file name"));
 722     }
 723     else if ( fileTemp && !fileTemp->IsOpened() )
 724     {
 725         // open the file - of course, there is a race condition here, this is
 726         // why we always prefer using mkstemp()...
 727         //
 728         // NB: GetTempFileName() under Windows creates the file, so using
 729         //     write_excl there would fail
 730         if ( !fileTemp->Open(path,
 731 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 732                              wxFile::write,
 733 #else
 734                              wxFile::write_excl,
 735 #endif
 736                              wxS_IRUSR | wxS_IWUSR) )
 737         {
 738             // FIXME: If !ok here should we loop and try again with another
 739             //        file name?  That is the standard recourse if open(O_EXCL)
 740             //        fails, though of course it should be protected against
 741             //        possible infinite looping too.
 742
 743             wxLogError(_("Failed to open temporary file."));
 744
 745             path.clear();
 746         }
 747     }
 748
 749     return path;
 750 }
 751
 752 // ----------------------------------------------------------------------------
 753 // directory operations
 754 // ----------------------------------------------------------------------------
 755
 756 bool wxFileName::Mkdir( int perm, int flags )
 757 {
 758     return wxFileName::Mkdir( GetFullPath(), perm, flags );
 759 }
 760
 761 bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
 762 {
 763     if ( flags & wxPATH_MKDIR_FULL )
 764     {
 765         // split the path in components
 766         wxFileName filename;
 767         filename.AssignDir(dir);
 768
 769         wxString currPath;
 770         if ( filename.HasVolume())
 771         {
 772             currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
 773         }
 774
 775         wxArrayString dirs = filename.GetDirs();
 776         size_t count = dirs.GetCount();
 777         for ( size_t i = 0; i < count; i++ )
 778         {
 779             if ( i > 0 || filename.IsAbsolute() )
 780                 currPath += wxFILE_SEP_PATH;
 781             currPath += dirs[i];
 782
 783             if (!DirExists(currPath))
 784             {
 785                 if (!wxMkdir(currPath, perm))
 786                 {
 787                     // no need to try creating further directories
 788                     return FALSE;
 789                 }
 790             }
 791         }
 792
 793         return TRUE;
 794
 795     }
 796
 797     return ::wxMkdir( dir, perm );
 798 }
 799
 800 bool wxFileName::Rmdir()
 801 {
 802     return wxFileName::Rmdir( GetFullPath() );
 803 }
 804
 805 bool wxFileName::Rmdir( const wxString &dir )
 806 {
 807     return ::wxRmdir( dir );
 808 }
 809
 810 // ----------------------------------------------------------------------------
 811 // path normalization
 812 // ----------------------------------------------------------------------------
 813
 814 bool wxFileName::Normalize(int flags,
 815                            const wxString& cwd,
 816                            wxPathFormat format)
 817 {
 818     // the existing path components
 819     wxArrayString dirs = GetDirs();
 820
 821     // the path to prepend in front to make the path absolute
 822     wxFileName curDir;
 823
 824     format = GetFormat(format);
 825
 826     // make the path absolute
 827     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
 828     {
 829         if ( cwd.empty() )
 830         {
 831             curDir.AssignCwd(GetVolume());
 832         }
 833         else // cwd provided
 834         {
 835             curDir.AssignDir(cwd);
 836         }
 837
 838         // the path may be not absolute because it doesn't have the volume name
 839         // but in this case we shouldn't modify the directory components of it
 840         // but just set the current volume
 841         if ( !HasVolume() && curDir.HasVolume() )
 842         {
 843             SetVolume(curDir.GetVolume());
 844
 845             if ( !m_relative )
 846             {
 847                 // yes, it was the case - we don't need curDir then
 848                 curDir.Clear();
 849             }
 850         }
 851     }
 852
 853     // handle ~ stuff under Unix only
 854     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 855     {
 856         if ( !dirs.IsEmpty() )
 857         {
 858             wxString dir = dirs[0u];
 859             if ( !dir.empty() && dir[0u] == _T('~') )
 860             {
 861                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 862
 863                 dirs.RemoveAt(0u);
 864             }
 865         }
 866     }
 867
 868     // transform relative path into abs one
 869     if ( curDir.IsOk() )
 870     {
 871         wxArrayString dirsNew = curDir.GetDirs();
 872         size_t count = dirs.GetCount();
 873         for ( size_t n = 0; n < count; n++ )
 874         {
 875             dirsNew.Add(dirs[n]);
 876         }
 877
 878         dirs = dirsNew;
 879     }
 880
 881     // now deal with ".", ".." and the rest
 882     m_dirs.Empty();
 883     size_t count = dirs.GetCount();
 884     for ( size_t n = 0; n < count; n++ )
 885     {
 886         wxString dir = dirs[n];
 887
 888         if ( flags & wxPATH_NORM_DOTS )
 889         {
 890             if ( dir == wxT(".") )
 891             {
 892                 // just ignore
 893                 continue;
 894             }
 895
 896             if ( dir == wxT("..") )
 897             {
 898                 if ( m_dirs.IsEmpty() )
 899                 {
 900                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 901                                GetFullPath().c_str());
 902                     return FALSE;
 903                 }
 904
 905                 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
 906                 continue;
 907             }
 908         }
 909
 910         if ( flags & wxPATH_NORM_ENV_VARS )
 911         {
 912             dir = wxExpandEnvVars(dir);
 913         }
 914
 915         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 916         {
 917             dir.MakeLower();
 918         }
 919
 920         m_dirs.Add(dir);
 921     }
 922
 923     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 924     {
 925         // VZ: expand env vars here too?
 926
 927         m_name.MakeLower();
 928         m_ext.MakeLower();
 929     }
 930
 931     // we do have the path now
 932     //
 933     // NB: need to do this before (maybe) calling Assign() below
 934     m_relative = FALSE;
 935
 936 #if defined(__WIN32__)
 937     if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
 938     {
 939         Assign(GetLongPath());
 940     }
 941 #endif // Win32
 942
 943     return TRUE;
 944 }
 945
 946 // ----------------------------------------------------------------------------
 947 // absolute/relative paths
 948 // ----------------------------------------------------------------------------
 949
 950 bool wxFileName::IsAbsolute(wxPathFormat format) const
 951 {
 952     // if our path doesn't start with a path separator, it's not an absolute
 953     // path
 954     if ( m_relative )
 955         return FALSE;
 956
 957     if ( !GetVolumeSeparator(format).empty() )
 958     {
 959         // this format has volumes and an absolute path must have one, it's not
 960         // enough to have the full path to bean absolute file under Windows
 961         if ( GetVolume().empty() )
 962             return FALSE;
 963     }
 964
 965     return TRUE;
 966 }
 967
 968 bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
 969 {
 970     wxFileName fnBase(pathBase, format);
 971
 972     // get cwd only once - small time saving
 973     wxString cwd = wxGetCwd();
 974     Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
 975     fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
 976
 977     bool withCase = IsCaseSensitive(format);
 978
 979     // we can't do anything if the files live on different volumes
 980     if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
 981     {
 982         // nothing done
 983         return FALSE;
 984     }
 985
 986     // same drive, so we don't need our volume
 987     m_volume.clear();
 988
 989     // remove common directories starting at the top
 990     while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
 991                 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
 992     {
 993         m_dirs.RemoveAt(0);
 994         fnBase.m_dirs.RemoveAt(0);
 995     }
 996
 997     // add as many ".." as needed
 998     size_t count = fnBase.m_dirs.GetCount();
 999     for ( size_t i = 0; i < count; i++ )
1000     {
1001         m_dirs.Insert(wxT(".."), 0u);
1002     }
1003
1004     if ( format == wxPATH_UNIX || format == wxPATH_DOS )
1005     {
1006         // a directory made relative with respect to itself is '.' under Unix
1007         // and DOS, by definition (but we don't have to insert "./" for the
1008         // files)
1009         if ( m_dirs.IsEmpty() && IsDir() )
1010         {
1011             m_dirs.Add(_T('.'));
1012         }
1013     }
1014
1015     m_relative = TRUE;
1016
1017     // we were modified
1018     return TRUE;
1019 }
1020
1021 // ----------------------------------------------------------------------------
1022 // filename kind tests
1023 // ----------------------------------------------------------------------------
1024
1025 bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
1026 {
1027     wxFileName fn1 = *this,
1028                fn2 = filepath;
1029
1030     // get cwd only once - small time saving
1031     wxString cwd = wxGetCwd();
1032     fn1.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1033     fn2.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1034
1035     if ( fn1.GetFullPath() == fn2.GetFullPath() )
1036         return TRUE;
1037
1038     // TODO: compare inodes for Unix, this works even when filenames are
1039     //       different but files are the same (symlinks) (VZ)
1040
1041     return FALSE;
1042 }
1043
1044 /* static */
1045 bool wxFileName::IsCaseSensitive( wxPathFormat format )
1046 {
1047     // only Unix filenames are truely case-sensitive
1048     return GetFormat(format) == wxPATH_UNIX;
1049 }
1050
1051 /* static */
1052 wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
1053 {
1054     wxString sepVol;
1055
1056     if ( (GetFormat(format) == wxPATH_DOS) ||
1057          (GetFormat(format) == wxPATH_VMS) )
1058     {
1059         sepVol = wxFILE_SEP_DSK;
1060     }
1061     //else: leave empty
1062
1063     return sepVol;
1064 }
1065
1066 /* static */
1067 wxString wxFileName::GetPathSeparators(wxPathFormat format)
1068 {
1069     wxString seps;
1070     switch ( GetFormat(format) )
1071     {
1072         case wxPATH_DOS:
1073             // accept both as native APIs do but put the native one first as
1074             // this is the one we use in GetFullPath()
1075             seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1076             break;
1077
1078         default:
1079             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
1080             // fall through
1081
1082         case wxPATH_UNIX:
1083             seps = wxFILE_SEP_PATH_UNIX;
1084             break;
1085
1086         case wxPATH_MAC:
1087             seps = wxFILE_SEP_PATH_MAC;
1088             break;
1089
1090         case wxPATH_VMS:
1091             seps = wxFILE_SEP_PATH_VMS;
1092             break;
1093     }
1094
1095     return seps;
1096 }
1097
1098 /* static */
1099 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1100 {
1101     // wxString::Find() doesn't work as expected with NUL - it will always find
1102     // it, so it is almost surely a bug if this function is called with NUL arg
1103     wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
1104
1105     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1106 }
1107
1108 // ----------------------------------------------------------------------------
1109 // path components manipulation
1110 // ----------------------------------------------------------------------------
1111
1112 void wxFileName::AppendDir( const wxString &dir )
1113 {
1114     m_dirs.Add( dir );
1115 }
1116
1117 void wxFileName::PrependDir( const wxString &dir )
1118 {
1119     m_dirs.Insert( dir, 0 );
1120 }
1121
1122 void wxFileName::InsertDir( int before, const wxString &dir )
1123 {
1124     m_dirs.Insert( dir, before );
1125 }
1126
1127 void wxFileName::RemoveDir( int pos )
1128 {
1129     m_dirs.Remove( (size_t)pos );
1130 }
1131
1132 // ----------------------------------------------------------------------------
1133 // accessors
1134 // ----------------------------------------------------------------------------
1135
1136 void wxFileName::SetFullName(const wxString& fullname)
1137 {
1138     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1139 }
1140
1141 wxString wxFileName::GetFullName() const
1142 {
1143     wxString fullname = m_name;
1144     if ( !m_ext.empty() )
1145     {
1146         fullname << wxFILE_SEP_EXT << m_ext;
1147     }
1148
1149     return fullname;
1150 }
1151
1152 wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1153 {
1154     format = GetFormat( format );
1155
1156     wxString fullpath;
1157
1158     // return the volume with the path as well if requested
1159     if ( flags & wxPATH_GET_VOLUME )
1160     {
1161         fullpath += wxGetVolumeString(GetVolume(), format);
1162     }
1163
1164     // the leading character
1165     switch ( format )
1166     {
1167         case wxPATH_MAC:
1168             if ( m_relative )
1169                 fullpath += wxFILE_SEP_PATH_MAC;
1170             break;
1171
1172         case wxPATH_DOS:
1173             if (!m_relative)
1174                 fullpath += wxFILE_SEP_PATH_DOS;
1175             break;
1176
1177         default:
1178             wxFAIL_MSG( _T("unknown path format") );
1179             // fall through
1180
1181         case wxPATH_UNIX:
1182             if ( !m_relative )
1183             {
1184                 // normally the absolute file names starts with a slash with
1185                 // one exception: file names like "~/foo.bar" don't have it
1186                 if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1187                 {
1188                     fullpath += wxFILE_SEP_PATH_UNIX;
1189                 }
1190             }
1191             break;
1192
1193         case wxPATH_VMS:
1194             // no leading character here but use this place to unset
1195             // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense as,
1196             // if I understand correctly, there should never be a dot before
1197             // the closing bracket
1198             flags &= ~wxPATH_GET_SEPARATOR;
1199     }
1200
1201     // then concatenate all the path components using the path separator
1202     size_t dirCount = m_dirs.GetCount();
1203     if ( dirCount )
1204     {
1205         if ( format == wxPATH_VMS )
1206         {
1207             fullpath += wxT('[');
1208         }
1209
1210         for ( size_t i = 0; i < dirCount; i++ )
1211         {
1212             switch (format)
1213             {
1214                 case wxPATH_MAC:
1215                     if ( m_dirs[i] == wxT(".") )
1216                     {
1217                         // skip appending ':', this shouldn't be done in this
1218                         // case as "::" is interpreted as ".." under Unix
1219                         continue;
1220                     }
1221
1222                     // convert back from ".." to nothing
1223                     if ( m_dirs[i] != wxT("..") )
1224                          fullpath += m_dirs[i];
1225                     break;
1226
1227                 default:
1228                     wxFAIL_MSG( wxT("unexpected path format") );
1229                     // still fall through
1230
1231                 case wxPATH_DOS:
1232                 case wxPATH_UNIX:
1233                     fullpath += m_dirs[i];
1234                     break;
1235
1236                 case wxPATH_VMS:
1237                     // TODO: What to do with ".." under VMS
1238
1239                     // convert back from ".." to nothing
1240                     if ( m_dirs[i] != wxT("..") )
1241                         fullpath += m_dirs[i];
1242                     break;
1243             }
1244
1245             if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
1246                 fullpath += GetPathSeparator(format);
1247         }
1248
1249         if ( format == wxPATH_VMS )
1250         {
1251             fullpath += wxT(']');
1252         }
1253     }
1254
1255     return fullpath;
1256 }
1257
1258 wxString wxFileName::GetFullPath( wxPathFormat format ) const
1259 {
1260     // we already have a function to get the path
1261     wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
1262                                 format);
1263
1264     // now just add the file name and extension to it
1265     fullpath += GetFullName();
1266
1267     return fullpath;
1268 }
1269
1270 // Return the short form of the path (returns identity on non-Windows platforms)
1271 wxString wxFileName::GetShortPath() const
1272 {
1273 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
1274     wxString path(GetFullPath());
1275     wxString pathOut;
1276     DWORD sz = ::GetShortPathName(path, NULL, 0);
1277     bool ok = sz != 0;
1278     if ( ok )
1279     {
1280         ok = ::GetShortPathName
1281                (
1282                 path,
1283                 pathOut.GetWriteBuf(sz),
1284                 sz
1285                ) != 0;
1286         pathOut.UngetWriteBuf();
1287     }
1288     if (ok)
1289         return pathOut;
1290
1291     return path;
1292 #else
1293     return GetFullPath();
1294 #endif
1295 }
1296
1297 // Return the long form of the path (returns identity on non-Windows platforms)
1298 wxString wxFileName::GetLongPath() const
1299 {
1300     wxString pathOut,
1301              path = GetFullPath();
1302
1303 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1304     bool success = FALSE;
1305
1306 #if wxUSE_DYNAMIC_LOADER
1307     typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1308
1309     static bool s_triedToLoad = FALSE;
1310
1311     if ( !s_triedToLoad )
1312     {
1313         // suppress the errors about missing GetLongPathName[AW]
1314         wxLogNull noLog;
1315
1316         s_triedToLoad = TRUE;
1317         wxDynamicLibrary dllKernel(_T("kernel32"));
1318         if ( dllKernel.IsLoaded() )
1319         {
1320             // may succeed or fail depending on the Windows version
1321             static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1322 #ifdef _UNICODE
1323             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1324 #else
1325             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1326 #endif
1327
1328             if ( s_pfnGetLongPathName )
1329             {
1330                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1331                 bool ok = dwSize > 0;
1332
1333                 if ( ok )
1334                 {
1335                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1336                     ok = sz != 0;
1337                     if ( ok )
1338                     {
1339                         ok = (*s_pfnGetLongPathName)
1340                                 (
1341                                 path,
1342                                 pathOut.GetWriteBuf(sz),
1343                                 sz
1344                                 ) != 0;
1345                         pathOut.UngetWriteBuf();
1346
1347                         success = TRUE;
1348                     }
1349                 }
1350             }
1351         }
1352     }
1353
1354     if (success)
1355         return pathOut;
1356 #endif // wxUSE_DYNAMIC_LOADER
1357
1358     if (!success)
1359     {
1360         // The OS didn't support GetLongPathName, or some other error.
1361         // We need to call FindFirstFile on each component in turn.
1362
1363         WIN32_FIND_DATA findFileData;
1364         HANDLE hFind;
1365
1366         if ( HasVolume() )
1367             pathOut = GetVolume() +
1368                       GetVolumeSeparator(wxPATH_DOS) +
1369                       GetPathSeparator(wxPATH_DOS);
1370         else
1371             pathOut = wxEmptyString;
1372
1373         wxArrayString dirs = GetDirs();
1374         dirs.Add(GetFullName());
1375
1376         wxString tmpPath;
1377
1378         size_t count = dirs.GetCount();
1379         for ( size_t i = 0; i < count; i++ )
1380         {
1381             // We're using pathOut to collect the long-name path, but using a
1382             // temporary for appending the last path component which may be
1383             // short-name
1384             tmpPath = pathOut + dirs[i];
1385
1386             if ( tmpPath.empty() )
1387                 continue;
1388
1389             // can't see this being necessary? MF
1390             if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
1391             {
1392                 // Can't pass a drive and root dir to FindFirstFile,
1393                 // so continue to next dir
1394                 tmpPath += wxFILE_SEP_PATH;
1395                 pathOut = tmpPath;
1396                 continue;
1397             }
1398
1399             hFind = ::FindFirstFile(tmpPath, &findFileData);
1400             if (hFind == INVALID_HANDLE_VALUE)
1401             {
1402                 // Error: most likely reason is that path doesn't exist, so
1403                 // append any unprocessed parts and return
1404                 for ( i += 1; i < count; i++ )
1405                     tmpPath += wxFILE_SEP_PATH + dirs[i];
1406
1407                 return tmpPath;
1408             }
1409
1410             pathOut += findFileData.cFileName;
1411             if ( (i < (count-1)) )
1412                 pathOut += wxFILE_SEP_PATH;
1413
1414             ::FindClose(hFind);
1415         }
1416     }
1417 #else // !Win32
1418     pathOut = path;
1419 #endif // Win32/!Win32
1420
1421     return pathOut;
1422 }
1423
1424 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1425 {
1426     if (format == wxPATH_NATIVE)
1427     {
1428 #if defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__)
1429         format = wxPATH_DOS;
1430 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1431         format = wxPATH_MAC;
1432 #elif defined(__VMS)
1433         format = wxPATH_VMS;
1434 #else
1435         format = wxPATH_UNIX;
1436 #endif
1437     }
1438     return format;
1439 }
1440
1441 // ----------------------------------------------------------------------------
1442 // path splitting function
1443 // ----------------------------------------------------------------------------
1444
1445 /* static */
1446 void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1447                            wxString *pstrVolume,
1448                            wxString *pstrPath,
1449                            wxString *pstrName,
1450                            wxString *pstrExt,
1451                            wxPathFormat format)
1452 {
1453     format = GetFormat(format);
1454
1455     wxString fullpath = fullpathWithVolume;
1456
1457     // under VMS the end of the path is ']', not the path separator used to
1458     // separate the components
1459     wxString sepPath = format == wxPATH_VMS ? wxString(_T(']'))
1460                                             : GetPathSeparators(format);
1461
1462     // special Windows UNC paths hack: transform \\share\path into share:path
1463     if ( format == wxPATH_DOS )
1464     {
1465         if ( fullpath.length() >= 4 &&
1466                 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1467                     fullpath[1u] == wxFILE_SEP_PATH_DOS )
1468         {
1469             fullpath.erase(0, 2);
1470
1471             size_t posFirstSlash = fullpath.find_first_of(sepPath);
1472             if ( posFirstSlash != wxString::npos )
1473             {
1474                 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1475
1476                 // UNC paths are always absolute, right? (FIXME)
1477                 fullpath.insert(posFirstSlash + 1, wxFILE_SEP_PATH_DOS);
1478             }
1479         }
1480     }
1481
1482     // We separate the volume here
1483     if ( format == wxPATH_DOS || format == wxPATH_VMS )
1484     {
1485         wxString sepVol = GetVolumeSeparator(format);
1486
1487         size_t posFirstColon = fullpath.find_first_of(sepVol);
1488         if ( posFirstColon != wxString::npos )
1489         {
1490             if ( pstrVolume )
1491             {
1492                 *pstrVolume = fullpath.Left(posFirstColon);
1493             }
1494
1495             // remove the volume name and the separator from the full path
1496             fullpath.erase(0, posFirstColon + sepVol.length());
1497         }
1498     }
1499
1500     // find the positions of the last dot and last path separator in the path
1501     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1502     size_t posLastSlash = fullpath.find_last_of(sepPath);
1503
1504     if ( (posLastDot != wxString::npos) &&
1505             ((format == wxPATH_UNIX) || (format == wxPATH_VMS)) )
1506     {
1507         if ( (posLastDot == 0) ||
1508              (fullpath[posLastDot - 1] == sepPath[0u] ) )
1509         {
1510             // under Unix and VMS, dot may be (and commonly is) the first
1511             // character of the filename, don't treat the entire filename as
1512             // extension in this case
1513             posLastDot = wxString::npos;
1514         }
1515     }
1516
1517     // if we do have a dot and a slash, check that the dot is in the name part
1518     if ( (posLastDot != wxString::npos) &&
1519          (posLastSlash != wxString::npos) &&
1520          (posLastDot < posLastSlash) )
1521     {
1522         // the dot is part of the path, not the start of the extension
1523         posLastDot = wxString::npos;
1524     }
1525
1526     // now fill in the variables provided by user
1527     if ( pstrPath )
1528     {
1529         if ( posLastSlash == wxString::npos )
1530         {
1531             // no path at all
1532             pstrPath->Empty();
1533         }
1534         else
1535         {
1536             // take everything up to the path separator but take care to make
1537             // the path equal to something like '/', not empty, for the files
1538             // immediately under root directory
1539             size_t len = posLastSlash;
1540
1541             // this rule does not apply to mac since we do not start with colons (sep)
1542             // except for relative paths
1543             if ( !len && format != wxPATH_MAC)
1544                 len++;
1545
1546             *pstrPath = fullpath.Left(len);
1547
1548             // special VMS hack: remove the initial bracket
1549             if ( format == wxPATH_VMS )
1550             {
1551                 if ( (*pstrPath)[0u] == _T('[') )
1552                     pstrPath->erase(0, 1);
1553             }
1554         }
1555     }
1556
1557     if ( pstrName )
1558     {
1559         // take all characters starting from the one after the last slash and
1560         // up to, but excluding, the last dot
1561         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1562         size_t count;
1563         if ( posLastDot == wxString::npos )
1564         {
1565             // take all until the end
1566             count = wxString::npos;
1567         }
1568         else if ( posLastSlash == wxString::npos )
1569         {
1570             count = posLastDot;
1571         }
1572         else // have both dot and slash
1573         {
1574             count = posLastDot - posLastSlash - 1;
1575         }
1576
1577         *pstrName = fullpath.Mid(nStart, count);
1578     }
1579
1580     if ( pstrExt )
1581     {
1582         if ( posLastDot == wxString::npos )
1583         {
1584             // no extension
1585             pstrExt->Empty();
1586         }
1587         else
1588         {
1589             // take everything after the dot
1590             *pstrExt = fullpath.Mid(posLastDot + 1);
1591         }
1592     }
1593 }
1594
1595 /* static */
1596 void wxFileName::SplitPath(const wxString& fullpath,
1597                            wxString *path,
1598                            wxString *name,
1599                            wxString *ext,
1600                            wxPathFormat format)
1601 {
1602     wxString volume;
1603     SplitPath(fullpath, &volume, path, name, ext, format);
1604
1605     if ( path )
1606     {
1607         path->Prepend(wxGetVolumeString(volume, format));
1608     }
1609 }
1610
1611 // ----------------------------------------------------------------------------
1612 // time functions
1613 // ----------------------------------------------------------------------------
1614
1615 #if wxUSE_DATETIME
1616
1617 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
1618                           const wxDateTime *dtMod,
1619                           const wxDateTime *dtCreate)
1620 {
1621 #if defined(__WIN32__)
1622     if ( IsDir() )
1623     {
1624         // VZ: please let me know how to do this if you can
1625         wxFAIL_MSG( _T("SetTimes() not implemented for the directories") );
1626     }
1627     else // file
1628     {
1629         wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
1630         if ( fh.IsOk() )
1631         {
1632             FILETIME ftAccess, ftCreate, ftWrite;
1633
1634             if ( dtCreate )
1635                 ConvertWxToFileTime(&ftCreate, *dtCreate);
1636             if ( dtAccess )
1637                 ConvertWxToFileTime(&ftAccess, *dtAccess);
1638             if ( dtMod )
1639                 ConvertWxToFileTime(&ftWrite, *dtMod);
1640
1641             if ( ::SetFileTime(fh,
1642                                dtCreate ? &ftCreate : NULL,
1643                                dtAccess ? &ftAccess : NULL,
1644                                dtMod ? &ftWrite : NULL) )
1645             {
1646                 return TRUE;
1647             }
1648         }
1649     }
1650 #elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1651     if ( !dtAccess && !dtMod )
1652     {
1653         // can't modify the creation time anyhow, don't try
1654         return TRUE;
1655     }
1656
1657     // if dtAccess or dtMod is not specified, use the other one (which must be
1658     // non NULL because of the test above) for both times
1659     utimbuf utm;
1660     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1661     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1662     if ( utime(GetFullPath().fn_str(), &utm) == 0 )
1663     {
1664         return TRUE;
1665     }
1666 #else // other platform
1667 #endif // platforms
1668
1669     wxLogSysError(_("Failed to modify file times for '%s'"),
1670                   GetFullPath().c_str());
1671
1672     return FALSE;
1673 }
1674
1675 bool wxFileName::Touch()
1676 {
1677 #if defined(__UNIX_LIKE__)
1678     // under Unix touching file is simple: just pass NULL to utime()
1679     if ( utime(GetFullPath().fn_str(), NULL) == 0 )
1680     {
1681         return TRUE;
1682     }
1683
1684     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1685
1686     return FALSE;
1687 #else // other platform
1688     wxDateTime dtNow = wxDateTime::Now();
1689
1690     return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
1691 #endif // platforms
1692 }
1693
1694 bool wxFileName::GetTimes(wxDateTime *dtAccess,
1695                           wxDateTime *dtMod,
1696                           wxDateTime *dtCreate) const
1697 {
1698 #if defined(__WIN32__)
1699     // we must use different methods for the files and directories under
1700     // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
1701     // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
1702     // not 9x
1703     bool ok;
1704     FILETIME ftAccess, ftCreate, ftWrite;
1705     if ( IsDir() )
1706     {
1707         // implemented in msw/dir.cpp
1708         extern bool wxGetDirectoryTimes(const wxString& dirname,
1709                                         FILETIME *, FILETIME *, FILETIME *);
1710
1711         // we should pass the path without the trailing separator to
1712         // wxGetDirectoryTimes()
1713         ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
1714                                  &ftAccess, &ftCreate, &ftWrite);
1715     }
1716     else // file
1717     {
1718         wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
1719         if ( fh.IsOk() )
1720         {
1721             ok = ::GetFileTime(fh,
1722                                dtCreate ? &ftCreate : NULL,
1723                                dtAccess ? &ftAccess : NULL,
1724                                dtMod ? &ftWrite : NULL) != 0;
1725         }
1726         else
1727         {
1728             ok = FALSE;
1729         }
1730     }
1731
1732     if ( ok )
1733     {
1734         if ( dtCreate )
1735             ConvertFileTimeToWx(dtCreate, ftCreate);
1736         if ( dtAccess )
1737             ConvertFileTimeToWx(dtAccess, ftAccess);
1738         if ( dtMod )
1739             ConvertFileTimeToWx(dtMod, ftWrite);
1740
1741         return TRUE;
1742     }
1743 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1744     wxStructStat stBuf;
1745     if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
1746     {
1747         if ( dtAccess )
1748             dtAccess->Set(stBuf.st_atime);
1749         if ( dtMod )
1750             dtMod->Set(stBuf.st_mtime);
1751         if ( dtCreate )
1752             dtCreate->Set(stBuf.st_ctime);
1753
1754         return TRUE;
1755     }
1756 #else // other platform
1757 #endif // platforms
1758
1759     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1760                   GetFullPath().c_str());
1761
1762     return FALSE;
1763 }
1764
1765 #endif // wxUSE_DATETIME
1766
1767 #ifdef __WXMAC__
1768
1769 const short kMacExtensionMaxLength = 16 ;
1770 class MacDefaultExtensionRecord
1771 {
1772 public :
1773   MacDefaultExtensionRecord()
1774   {
1775     m_ext[0] = 0 ;
1776     m_type = m_creator = NULL ;
1777   }
1778   MacDefaultExtensionRecord( const MacDefaultExtensionRecord& from )
1779   {
1780     strcpy( m_ext , from.m_ext ) ;
1781     m_type = from.m_type ;
1782     m_creator = from.m_creator ;
1783   }
1784   MacDefaultExtensionRecord( const char * extension , OSType type , OSType creator )
1785   {
1786     strncpy( m_ext , extension , kMacExtensionMaxLength ) ;
1787     m_ext[kMacExtensionMaxLength] = 0 ;
1788     m_type = type ;
1789     m_creator = creator ;
1790   }
1791   char m_ext[kMacExtensionMaxLength] ;
1792   OSType m_type ;
1793   OSType m_creator ;
1794 }  ;
1795
1796 #include "wx/dynarray.h"
1797 WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
1798
1799 bool gMacDefaultExtensionsInited = false ;
1800
1801 #include "wx/arrimpl.cpp"
1802
1803 WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray) ;
1804
1805 MacDefaultExtensionArray gMacDefaultExtensions ;
1806
1807 static void MacEnsureDefaultExtensionsLoaded()
1808 {
1809   if ( !gMacDefaultExtensionsInited )
1810   {
1811
1812     // load the default extensions
1813     MacDefaultExtensionRecord defaults[1] =
1814     {
1815       MacDefaultExtensionRecord( "txt" , 'TEXT' , 'ttxt' ) ,
1816
1817     } ;
1818     // we could load the pc exchange prefs here too
1819
1820     for ( size_t i = 0 ; i < WXSIZEOF( defaults ) ; ++i )
1821     {
1822       gMacDefaultExtensions.Add( defaults[i] ) ;
1823     }
1824     gMacDefaultExtensionsInited = true ;
1825   }
1826 }
1827 bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
1828 {
1829   FInfo fndrInfo ;
1830   FSSpec spec ;
1831   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1832   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1833   wxCHECK( err == noErr , false ) ;
1834
1835   fndrInfo.fdType = type ;
1836   fndrInfo.fdCreator = creator ;
1837   FSpSetFInfo( &spec , &fndrInfo ) ;
1838   return true ;
1839 }
1840
1841 bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
1842 {
1843   FInfo fndrInfo ;
1844   FSSpec spec ;
1845   wxMacFilename2FSSpec(GetFullPath(),&spec) ;
1846   OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
1847   wxCHECK( err == noErr , false ) ;
1848
1849   *type = fndrInfo.fdType ;
1850   *creator = fndrInfo.fdCreator ;
1851   return true ;
1852 }
1853
1854 bool wxFileName::MacSetDefaultTypeAndCreator()
1855 {
1856     wxUint32 type , creator ;
1857     if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
1858       &creator ) )
1859     {
1860         return MacSetTypeAndCreator( type , creator ) ;
1861     }
1862     return false;
1863 }
1864
1865 bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
1866 {
1867   MacEnsureDefaultExtensionsLoaded() ;
1868   wxString extl = ext.Lower() ;
1869   for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
1870   {
1871     if ( gMacDefaultExtensions.Item(i).m_ext == extl )
1872     {
1873       *type = gMacDefaultExtensions.Item(i).m_type ;
1874       *creator = gMacDefaultExtensions.Item(i).m_creator ;
1875       return true ;
1876     }
1877   }
1878   return false ;
1879 }
1880
1881 void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
1882 {
1883   MacEnsureDefaultExtensionsLoaded() ;
1884   MacDefaultExtensionRecord rec ;
1885   rec.m_type = type ;
1886   rec.m_creator = creator ;
1887   strncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
1888   gMacDefaultExtensions.Add( rec ) ;
1889 }
1890 #endif