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 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "filename.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28   #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/intl.h"
  33     #include "wx/log.h"
  34 #endif
  35
  36 #include "wx/filename.h"
  37 #include "wx/tokenzr.h"
  38 #include "wx/config.h"          // for wxExpandEnvVars
  39 #include "wx/utils.h"
  40
  41 #if wxUSE_DYNLIB_CLASS
  42     #include "wx/dynlib.h"
  43 #endif
  44
  45 // For GetShort/LongPathName
  46 #ifdef __WIN32__
  47     #include <windows.h>
  48
  49     #include "wx/msw/winundef.h"
  50 #endif
  51
  52 // utime() is POSIX so should normally be available on all Unices
  53 #ifdef __UNIX_LIKE__
  54     #include <sys/types.h>
  55     #include <utime.h>
  56     #include <sys/stat.h>
  57     #include <unistd.h>
  58 #endif
  59
  60 // ----------------------------------------------------------------------------
  61 // private classes
  62 // ----------------------------------------------------------------------------
  63
  64 // small helper class which opens and closes the file - we use it just to get
  65 // a file handle for the given file name to pass it to some Win32 API function
  66 #ifdef __WIN32__
  67
  68 class wxFileHandle
  69 {
  70 public:
  71     wxFileHandle(const wxString& filename)
  72     {
  73         m_hFile = ::CreateFile
  74                     (
  75                      filename,          // name
  76                      GENERIC_READ,      // access mask
  77                      0,                 // no sharing
  78                      NULL,              // no secutity attr
  79                      OPEN_EXISTING,     // creation disposition
  80                      0,                 // no flags
  81                      NULL               // no template file
  82                     );
  83
  84         if ( m_hFile == INVALID_HANDLE_VALUE )
  85         {
  86             wxLogSysError(_("Failed to open '%s' for reading"),
  87                           filename.c_str());
  88         }
  89     }
  90
  91     ~wxFileHandle()
  92     {
  93         if ( m_hFile != INVALID_HANDLE_VALUE )
  94         {
  95             if ( !::CloseHandle(m_hFile) )
  96             {
  97                 wxLogSysError(_("Failed to close file handle"));
  98             }
  99         }
 100     }
 101
 102     // return TRUE only if the file could be opened successfully
 103     bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
 104
 105     // get the handle
 106     operator HANDLE() const { return m_hFile; }
 107
 108 private:
 109     HANDLE m_hFile;
 110 };
 111
 112 #endif // __WIN32__
 113
 114 // ----------------------------------------------------------------------------
 115 // private functions
 116 // ----------------------------------------------------------------------------
 117
 118 #ifdef __WIN32__
 119
 120 // convert between wxDateTime and FILETIME which is a 64-bit value representing
 121 // the number of 100-nanosecond intervals since January 1, 1601.
 122
 123 // the number of milliseconds between the Unix Epoch (January 1, 1970) and the
 124 // FILETIME reference point (January 1, 1601)
 125 static const wxLongLong FILETIME_EPOCH_OFFSET = wxLongLong(0xa97, 0x30b66800);
 126
 127 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 128 {
 129     wxLongLong ll(ft.dwHighDateTime, ft.dwLowDateTime);
 130
 131     // convert 100ns to ms
 132     ll /= 10000;
 133
 134     // move it to our Epoch
 135     ll -= FILETIME_EPOCH_OFFSET;
 136
 137     *dt = wxDateTime(ll);
 138 }
 139
 140 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 141 {
 142     // do the reverse of ConvertFileTimeToWx()
 143     wxLongLong ll = dt.GetValue();
 144     ll *= 10000;
 145     ll += FILETIME_EPOCH_OFFSET;
 146
 147     ft->dwHighDateTime = ll.GetHi();
 148     ft->dwLowDateTime = ll.GetLo();
 149 }
 150
 151 #endif // __WIN32__
 152
 153 // ============================================================================
 154 // implementation
 155 // ============================================================================
 156
 157 // ----------------------------------------------------------------------------
 158 // wxFileName construction
 159 // ----------------------------------------------------------------------------
 160
 161 void wxFileName::Assign( const wxFileName &filepath )
 162 {
 163     m_ext = filepath.GetExt();
 164     m_name = filepath.GetName();
 165     m_dirs = filepath.GetDirs();
 166 }
 167
 168 void wxFileName::Assign( const wxString& path,
 169                          const wxString& name,
 170                          const wxString& ext,
 171                          wxPathFormat format )
 172 {
 173     wxStringTokenizer tn(path, GetPathSeparators(format),
 174                          wxTOKEN_RET_EMPTY_ALL);
 175     int i = 0;
 176     m_dirs.Clear();
 177     while ( tn.HasMoreTokens() )
 178     {
 179         wxString token = tn.GetNextToken();
 180
 181         // If the path starts with a slash (or two for a network path),
 182         // we need the first dir entry to be an empty for later reassembly.
 183         if ((i < 2) || !token.IsEmpty())
 184             m_dirs.Add( token );
 185
 186         i ++;
 187     }
 188
 189     m_ext = ext;
 190     m_name = name;
 191 }
 192
 193 void wxFileName::Assign(const wxString& fullpath,
 194                         wxPathFormat format)
 195 {
 196     wxString path, name, ext;
 197     SplitPath(fullpath, &path, &name, &ext, format);
 198
 199     Assign(path, name, ext, format);
 200 }
 201
 202 void wxFileName::Assign(const wxString& path,
 203                         const wxString& fullname,
 204                         wxPathFormat format)
 205 {
 206     wxString name, ext;
 207     SplitPath(fullname, NULL /* no path */, &name, &ext, format);
 208
 209     Assign(path, name, ext, format);
 210 }
 211
 212 void wxFileName::Clear()
 213 {
 214     m_dirs.Clear();
 215     m_name =
 216     m_ext = wxEmptyString;
 217 }
 218
 219 /* static */
 220 wxFileName wxFileName::FileName(const wxString& file)
 221 {
 222     return wxFileName(file);
 223 }
 224
 225 /* static */
 226 wxFileName wxFileName::DirName(const wxString& dir)
 227 {
 228     wxFileName fn;
 229     fn.AssignDir(dir);
 230     return fn;
 231 }
 232
 233 // ----------------------------------------------------------------------------
 234 // existence tests
 235 // ----------------------------------------------------------------------------
 236
 237 bool wxFileName::FileExists()
 238 {
 239     return wxFileName::FileExists( GetFullPath() );
 240 }
 241
 242 bool wxFileName::FileExists( const wxString &file )
 243 {
 244     return ::wxFileExists( file );
 245 }
 246
 247 bool wxFileName::DirExists()
 248 {
 249     return wxFileName::DirExists( GetFullPath() );
 250 }
 251
 252 bool wxFileName::DirExists( const wxString &dir )
 253 {
 254     return ::wxDirExists( dir );
 255 }
 256
 257 // ----------------------------------------------------------------------------
 258 // CWD and HOME stuff
 259 // ----------------------------------------------------------------------------
 260
 261 void wxFileName::AssignCwd()
 262 {
 263     AssignDir(wxFileName::GetCwd());
 264 }
 265
 266 /* static */
 267 wxString wxFileName::GetCwd()
 268 {
 269     return ::wxGetCwd();
 270 }
 271
 272 bool wxFileName::SetCwd()
 273 {
 274     return wxFileName::SetCwd( GetFullPath() );
 275 }
 276
 277 bool wxFileName::SetCwd( const wxString &cwd )
 278 {
 279     return ::wxSetWorkingDirectory( cwd );
 280 }
 281
 282 void wxFileName::AssignHomeDir()
 283 {
 284     AssignDir(wxFileName::GetHomeDir());
 285 }
 286
 287 wxString wxFileName::GetHomeDir()
 288 {
 289     return ::wxGetHomeDir();
 290 }
 291
 292 void wxFileName::AssignTempFileName( const wxString &prefix )
 293 {
 294     wxString fullname;
 295     if ( wxGetTempFileName(prefix, fullname) )
 296     {
 297         Assign(fullname);
 298     }
 299     else // error
 300     {
 301         Clear();
 302     }
 303 }
 304
 305 // ----------------------------------------------------------------------------
 306 // directory operations
 307 // ----------------------------------------------------------------------------
 308
 309 bool wxFileName::Mkdir( int perm, bool full )
 310 {
 311     return wxFileName::Mkdir( GetFullPath(), perm, full );
 312 }
 313
 314 bool wxFileName::Mkdir( const wxString &dir, int perm, bool full )
 315 {
 316     if (full)
 317     {
 318         wxFileName filename(dir);
 319         wxArrayString dirs = filename.GetDirs();
 320         dirs.Add(filename.GetName());
 321
 322         size_t count = dirs.GetCount();
 323         size_t i;
 324         wxString currPath;
 325         int noErrors = 0;
 326         for ( i = 0; i < count; i++ )
 327         {
 328             currPath += dirs[i];
 329
 330             if (currPath.Last() == wxT(':'))
 331             {
 332                 // Can't create a root directory so continue to next dir
 333                 currPath += wxFILE_SEP_PATH;
 334                 continue;
 335             }
 336
 337             if (!DirExists(currPath))
 338                 if (!wxMkdir(currPath, perm))
 339                     noErrors ++;
 340
 341             if ( (i < (count-1)) )
 342                 currPath += wxFILE_SEP_PATH;
 343         }
 344
 345         return (noErrors == 0);
 346
 347     }
 348     else
 349         return ::wxMkdir( dir, perm );
 350 }
 351
 352 bool wxFileName::Rmdir()
 353 {
 354     return wxFileName::Rmdir( GetFullPath() );
 355 }
 356
 357 bool wxFileName::Rmdir( const wxString &dir )
 358 {
 359     return ::wxRmdir( dir );
 360 }
 361
 362 // ----------------------------------------------------------------------------
 363 // path normalization
 364 // ----------------------------------------------------------------------------
 365
 366 bool wxFileName::Normalize(wxPathNormalize flags,
 367                            const wxString& cwd,
 368                            wxPathFormat format)
 369 {
 370     // the existing path components
 371     wxArrayString dirs = GetDirs();
 372
 373     // the path to prepend in front to make the path absolute
 374     wxFileName curDir;
 375
 376     format = GetFormat(format);
 377
 378     // make the path absolute
 379     if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute() )
 380     {
 381         if ( cwd.empty() )
 382             curDir.AssignCwd();
 383         else
 384             curDir.AssignDir(cwd);
 385     }
 386
 387     // handle ~ stuff under Unix only
 388     if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
 389     {
 390         if ( !dirs.IsEmpty() )
 391         {
 392             wxString dir = dirs[0u];
 393             if ( !dir.empty() && dir[0u] == _T('~') )
 394             {
 395                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
 396
 397                 dirs.RemoveAt(0u);
 398             }
 399         }
 400     }
 401
 402     if ( curDir.IsOk() )
 403     {
 404         wxArrayString dirsNew = curDir.GetDirs();
 405         size_t count = dirs.GetCount();
 406         for ( size_t n = 0; n < count; n++ )
 407         {
 408             dirsNew.Add(dirs[n]);
 409         }
 410
 411         dirs = dirsNew;
 412     }
 413
 414     // now deal with ".", ".." and the rest
 415     m_dirs.Empty();
 416     size_t count = dirs.GetCount();
 417     for ( size_t n = 0; n < count; n++ )
 418     {
 419         wxString dir = dirs[n];
 420
 421         if ( flags && wxPATH_NORM_DOTS )
 422         {
 423             if ( dir == wxT(".") )
 424             {
 425                 // just ignore
 426                 continue;
 427             }
 428
 429             if ( dir == wxT("..") )
 430             {
 431                 if ( m_dirs.IsEmpty() )
 432                 {
 433                     wxLogError(_("The path '%s' contains too many \"..\"!"),
 434                                GetFullPath().c_str());
 435                     return FALSE;
 436                 }
 437
 438                 m_dirs.Remove(m_dirs.GetCount() - 1);
 439                 continue;
 440             }
 441         }
 442
 443         if ( flags & wxPATH_NORM_ENV_VARS )
 444         {
 445             dir = wxExpandEnvVars(dir);
 446         }
 447
 448         if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 449         {
 450             dir.MakeLower();
 451         }
 452
 453         m_dirs.Add(dir);
 454     }
 455
 456     if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
 457     {
 458         // VZ: expand env vars here too?
 459
 460         m_name.MakeLower();
 461         m_ext.MakeLower();
 462     }
 463
 464 #if defined(__WXMSW__) && defined(__WIN32__)
 465     if (flags & wxPATH_NORM_LONG)
 466     {
 467         Assign(GetLongPath());
 468     }
 469 #endif
 470
 471     return TRUE;
 472 }
 473
 474 // ----------------------------------------------------------------------------
 475 // filename kind tests
 476 // ----------------------------------------------------------------------------
 477
 478 bool wxFileName::SameAs( const wxFileName &filepath, wxPathFormat format)
 479 {
 480     wxFileName fn1 = *this,
 481                fn2 = filepath;
 482
 483     // get cwd only once - small time saving
 484     wxString cwd = wxGetCwd();
 485     fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
 486     fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
 487
 488     if ( fn1.GetFullPath() == fn2.GetFullPath() )
 489         return TRUE;
 490
 491     // TODO: compare inodes for Unix, this works even when filenames are
 492     //       different but files are the same (symlinks) (VZ)
 493
 494     return FALSE;
 495 }
 496
 497 /* static */
 498 bool wxFileName::IsCaseSensitive( wxPathFormat format )
 499 {
 500     // only DOS filenames are case-sensitive
 501     return GetFormat(format) != wxPATH_DOS;
 502 }
 503
 504 bool wxFileName::IsRelative( wxPathFormat format )
 505 {
 506     return !IsAbsolute(format);
 507 }
 508
 509 bool wxFileName::IsAbsolute( wxPathFormat format )
 510 {
 511     wxChar ch = m_dirs.IsEmpty() ? _T('\0') : m_dirs[0u][0u];
 512
 513     // Hack to cope with e.g. c:\thing - need something better
 514     wxChar driveSep = _T('\0');
 515     if (!m_dirs.IsEmpty() && m_dirs[0].Length() > 1)
 516         driveSep = m_dirs[0u][1u];
 517
 518     // the path is absolute if it starts with a path separator or, only for
 519     // Unix filenames, with "~" or "~user"
 520     return IsPathSeparator(ch, format) ||
 521            driveSep == _T(':') ||
 522            (GetFormat(format) == wxPATH_UNIX && ch == _T('~') );
 523 }
 524
 525 /* static */
 526 wxString wxFileName::GetPathSeparators(wxPathFormat format)
 527 {
 528     wxString seps;
 529     switch ( GetFormat(format) )
 530     {
 531         case wxPATH_DOS:
 532             // accept both as native APIs do
 533             seps << wxFILE_SEP_PATH_UNIX << wxFILE_SEP_PATH_DOS;
 534             break;
 535
 536         default:
 537             wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
 538             // fall through
 539
 540         case wxPATH_UNIX:
 541             seps = wxFILE_SEP_PATH_UNIX;
 542             break;
 543
 544         case wxPATH_MAC:
 545             seps = wxFILE_SEP_PATH_MAC;
 546             break;
 547     }
 548
 549     return seps;
 550 }
 551
 552 /* static */
 553 bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
 554 {
 555     return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
 556 }
 557
 558 bool wxFileName::IsWild( wxPathFormat format )
 559 {
 560     // FIXME: this is probably false for Mac and this is surely wrong for most
 561     //        of Unix shells (think about "[...]")
 562         (void)format;
 563     return m_name.find_first_of(_T("*?")) != wxString::npos;
 564 }
 565
 566 // ----------------------------------------------------------------------------
 567 // path components manipulation
 568 // ----------------------------------------------------------------------------
 569
 570 void wxFileName::AppendDir( const wxString &dir )
 571 {
 572     m_dirs.Add( dir );
 573 }
 574
 575 void wxFileName::PrependDir( const wxString &dir )
 576 {
 577     m_dirs.Insert( dir, 0 );
 578 }
 579
 580 void wxFileName::InsertDir( int before, const wxString &dir )
 581 {
 582     m_dirs.Insert( dir, before );
 583 }
 584
 585 void wxFileName::RemoveDir( int pos )
 586 {
 587     m_dirs.Remove( (size_t)pos );
 588 }
 589
 590 // ----------------------------------------------------------------------------
 591 // accessors
 592 // ----------------------------------------------------------------------------
 593
 594 void wxFileName::SetFullName(const wxString& fullname)
 595 {
 596     SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
 597 }
 598
 599 wxString wxFileName::GetFullName() const
 600 {
 601     wxString fullname = m_name;
 602     if ( !m_ext.empty() )
 603     {
 604         fullname << wxFILE_SEP_EXT << m_ext;
 605     }
 606
 607     return fullname;
 608 }
 609
 610 wxString wxFileName::GetPath( bool add_separator, wxPathFormat format ) const
 611 {
 612     format = GetFormat( format );
 613
 614     wxString ret;
 615     size_t count = m_dirs.GetCount();
 616     for ( size_t i = 0; i < count; i++ )
 617     {
 618         ret += m_dirs[i];
 619         if ( add_separator || (i < count) )
 620             ret += wxFILE_SEP_PATH;
 621     }
 622
 623     return ret;
 624 }
 625
 626 wxString wxFileName::GetFullPath( wxPathFormat format ) const
 627 {
 628     format = GetFormat( format );
 629
 630     wxString ret;
 631     if (format == wxPATH_DOS)
 632     {
 633         for (size_t i = 0; i < m_dirs.GetCount(); i++)
 634         {
 635             ret += m_dirs[i];
 636             ret += '\\';
 637         }
 638     }
 639     else
 640     if (format == wxPATH_UNIX)
 641     {
 642         for (size_t i = 0; i < m_dirs.GetCount(); i++)
 643         {
 644             ret += m_dirs[i];
 645             ret += '/';
 646         }
 647     }
 648     else
 649     {
 650         for (size_t i = 0; i < m_dirs.GetCount(); i++)
 651         {
 652             ret += m_dirs[i];
 653             ret += ':';
 654         }
 655     }
 656
 657     ret += m_name;
 658
 659     if (!m_ext.IsEmpty())
 660     {
 661         ret += '.';
 662         ret += m_ext;
 663     }
 664
 665     return ret;
 666 }
 667
 668 // Return the short form of the path (returns identity on non-Windows platforms)
 669 wxString wxFileName::GetShortPath() const
 670 {
 671 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
 672     wxString path(GetFullPath());
 673     wxString pathOut;
 674     DWORD sz = ::GetShortPathName(path, NULL, 0);
 675     bool ok = sz != 0;
 676     if ( ok )
 677     {
 678         ok = ::GetShortPathName
 679                (
 680                 path,
 681                 pathOut.GetWriteBuf(sz),
 682                 sz
 683                ) != 0;
 684         pathOut.UngetWriteBuf();
 685     }
 686     if (ok)
 687         return pathOut;
 688
 689     return path;
 690 #else
 691     return GetFullPath();
 692 #endif
 693 }
 694
 695 // Return the long form of the path (returns identity on non-Windows platforms)
 696 wxString wxFileName::GetLongPath() const
 697 {
 698 #if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
 699     wxString path(GetFullPath());
 700     wxString pathOut;
 701     bool success = FALSE;
 702
 703     // VZ: this code was disabled, why?
 704 #if 0 // wxUSE_DYNLIB_CLASS
 705     typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
 706
 707     static bool s_triedToLoad = FALSE;
 708
 709     if ( !s_triedToLoad )
 710     {
 711         s_triedToLoad = TRUE;
 712         wxDllType dllKernel = wxDllLoader::LoadLibrary(_T("kernel32"));
 713         if ( dllKernel )
 714         {
 715             // may succeed or fail depending on the Windows version
 716                         static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
 717 #ifdef _UNICODE
 718             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameW"));
 719 #else
 720             s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameA"));
 721 #endif
 722
 723             wxDllLoader::UnloadLibrary(dllKernel);
 724
 725             if ( s_pfnGetLongPathName )
 726             {
 727                 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
 728                 bool ok = dwSize > 0;
 729
 730                 if ( ok )
 731                 {
 732                     DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
 733                     ok = sz != 0;
 734                     if ( ok )
 735                     {
 736                         ok = (*s_pfnGetLongPathName)
 737                                 (
 738                                 path,
 739                                 pathOut.GetWriteBuf(sz),
 740                                 sz
 741                                 ) != 0;
 742                         pathOut.UngetWriteBuf();
 743
 744                         success = TRUE;
 745                     }
 746                 }
 747             }
 748         }
 749     }
 750     if (success)
 751         return pathOut;
 752 #endif // wxUSE_DYNLIB_CLASS
 753
 754     if (!success)
 755     {
 756         // The OS didn't support GetLongPathName, or some other error.
 757         // We need to call FindFirstFile on each component in turn.
 758
 759         WIN32_FIND_DATA findFileData;
 760         HANDLE hFind;
 761         pathOut = wxEmptyString;
 762
 763         wxArrayString dirs = GetDirs();
 764         dirs.Add(GetFullName());
 765
 766         size_t count = dirs.GetCount();
 767         size_t i;
 768         wxString tmpPath;
 769
 770         for ( i = 0; i < count; i++ )
 771         {
 772             // We're using pathOut to collect the long-name path,
 773             // but using a temporary for appending the last path component which may be short-name
 774             tmpPath = pathOut + dirs[i];
 775
 776             if (tmpPath.Last() == wxT(':'))
 777             {
 778                 // Can't pass a drive and root dir to FindFirstFile,
 779                 // so continue to next dir
 780                 tmpPath += wxFILE_SEP_PATH;
 781                 pathOut = tmpPath;
 782                 continue;
 783             }
 784
 785             hFind = ::FindFirstFile(tmpPath, &findFileData);
 786             if (hFind == INVALID_HANDLE_VALUE)
 787             {
 788                 // Error: return immediately with the original path
 789                 return path;
 790             }
 791             else
 792             {
 793                 pathOut += findFileData.cFileName;
 794                 if ( (i < (count-1)) )
 795                     pathOut += wxFILE_SEP_PATH;
 796
 797                 ::FindClose(hFind);
 798             }
 799         }
 800     }
 801
 802     return pathOut;
 803 #else
 804     return GetFullPath();
 805 #endif
 806 }
 807
 808 wxPathFormat wxFileName::GetFormat( wxPathFormat format )
 809 {
 810     if (format == wxPATH_NATIVE)
 811     {
 812 #if defined(__WXMSW__) || defined(__WXPM__)
 813         format = wxPATH_DOS;
 814 #elif defined(__WXMAC__)
 815         format = wxPATH_MAC;
 816 #else
 817         format = wxPATH_UNIX;
 818 #endif
 819     }
 820     return format;
 821 }
 822
 823 // ----------------------------------------------------------------------------
 824 // path splitting function
 825 // ----------------------------------------------------------------------------
 826
 827 void wxFileName::SplitPath(const wxString& fullpath,
 828                            wxString *pstrPath,
 829                            wxString *pstrName,
 830                            wxString *pstrExt,
 831                            wxPathFormat format)
 832 {
 833     format = GetFormat(format);
 834
 835     // find the positions of the last dot and last path separator in the path
 836     size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
 837     size_t posLastSlash = fullpath.find_last_of(GetPathSeparators(format));
 838
 839     if ( (posLastDot != wxString::npos) && (format == wxPATH_UNIX) )
 840     {
 841         if ( (posLastDot == 0) ||
 842              (fullpath[posLastDot - 1] == wxFILE_SEP_PATH_UNIX) )
 843         {
 844             // under Unix, dot may be (and commonly is) the first character of
 845             // the filename, don't treat the entire filename as extension in
 846             // this case
 847             posLastDot = wxString::npos;
 848         }
 849     }
 850
 851     // if we do have a dot and a slash, check that the dot is in the name part
 852     if ( (posLastDot != wxString::npos) &&
 853          (posLastSlash != wxString::npos) &&
 854          (posLastDot < posLastSlash) )
 855     {
 856         // the dot is part of the path, not the start of the extension
 857         posLastDot = wxString::npos;
 858     }
 859
 860     // now fill in the variables provided by user
 861     if ( pstrPath )
 862     {
 863         if ( posLastSlash == wxString::npos )
 864         {
 865             // no path at all
 866             pstrPath->Empty();
 867         }
 868         else
 869         {
 870             // take all until the separator
 871             *pstrPath = fullpath.Left(posLastSlash);
 872         }
 873     }
 874
 875     if ( pstrName )
 876     {
 877         // take all characters starting from the one after the last slash and
 878         // up to, but excluding, the last dot
 879         size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
 880         size_t count;
 881         if ( posLastDot == wxString::npos )
 882         {
 883             // take all until the end
 884             count = wxString::npos;
 885         }
 886         else if ( posLastSlash == wxString::npos )
 887         {
 888             count = posLastDot;
 889         }
 890         else // have both dot and slash
 891         {
 892             count = posLastDot - posLastSlash - 1;
 893         }
 894
 895         *pstrName = fullpath.Mid(nStart, count);
 896     }
 897
 898     if ( pstrExt )
 899     {
 900         if ( posLastDot == wxString::npos )
 901         {
 902             // no extension
 903             pstrExt->Empty();
 904         }
 905         else
 906         {
 907             // take everything after the dot
 908             *pstrExt = fullpath.Mid(posLastDot + 1);
 909         }
 910     }
 911 }
 912
 913 // ----------------------------------------------------------------------------
 914 // time functions
 915 // ----------------------------------------------------------------------------
 916
 917 bool wxFileName::SetTimes(const wxDateTime *dtCreate,
 918                           const wxDateTime *dtAccess,
 919                           const wxDateTime *dtMod)
 920 {
 921 #if defined(__UNIX_LIKE__)
 922     if ( !dtAccess && !dtMod )
 923     {
 924         // can't modify the creation time anyhow, don't try
 925         return TRUE;
 926     }
 927
 928     // if dtAccess or dtMod is not specified, use the other one (which must be
 929     // non NULL because of the test above) for both times
 930     utimbuf utm;
 931     utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
 932     utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
 933     if ( utime(GetFullPath(), &utm) == 0 )
 934     {
 935         return TRUE;
 936     }
 937 #elif defined(__WIN32__)
 938     wxFileHandle fh(GetFullPath());
 939     if ( fh.IsOk() )
 940     {
 941         FILETIME ftAccess, ftCreate, ftWrite;
 942
 943         if ( dtCreate )
 944             ConvertWxToFileTime(&ftCreate, *dtCreate);
 945         if ( dtAccess )
 946             ConvertWxToFileTime(&ftAccess, *dtAccess);
 947         if ( dtMod )
 948             ConvertWxToFileTime(&ftWrite, *dtMod);
 949
 950         if ( ::SetFileTime(fh,
 951                            dtCreate ? &ftCreate : NULL,
 952                            dtAccess ? &ftAccess : NULL,
 953                            dtMod ? &ftWrite : NULL) )
 954         {
 955             return TRUE;
 956         }
 957     }
 958 #else // other platform
 959 #endif // platforms
 960
 961     wxLogSysError(_("Failed to modify file times for '%s'"),
 962                   GetFullPath().c_str());
 963
 964     return FALSE;
 965 }
 966
 967 bool wxFileName::Touch()
 968 {
 969 #if defined(__UNIX_LIKE__)
 970     // under Unix touching file is simple: just pass NULL to utime()
 971     if ( utime(GetFullPath(), NULL) == 0 )
 972     {
 973         return TRUE;
 974     }
 975
 976     wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
 977
 978     return FALSE;
 979 #else // other platform
 980     wxDateTime dtNow = wxDateTime::Now();
 981
 982     return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow);
 983 #endif // platforms
 984 }
 985
 986 bool wxFileName::GetTimes(wxDateTime *dtAccess,
 987                           wxDateTime *dtMod,
 988                           wxDateTime *dtChange) const
 989 {
 990 #if defined(__UNIX_LIKE__)
 991     wxStructStat stBuf;
 992     if ( wxStat(GetFullPath(), &stBuf) == 0 )
 993     {
 994         if ( dtAccess )
 995             dtAccess->Set(stBuf.st_atime);
 996         if ( dtMod )
 997             dtMod->Set(stBuf.st_mtime);
 998         if ( dtChange )
 999             dtChange->Set(stBuf.st_ctime);
1000
1001         return TRUE;
1002     }
1003 #elif defined(__WIN32__)
1004     wxFileHandle fh(GetFullPath());
1005     if ( fh.IsOk() )
1006     {
1007         FILETIME ftAccess, ftCreate, ftWrite;
1008
1009         if ( ::GetFileTime(fh,
1010                            dtMod ? &ftCreate : NULL,
1011                            dtAccess ? &ftAccess : NULL,
1012                            dtChange ? &ftWrite : NULL) )
1013         {
1014             if ( dtMod )
1015                 ConvertFileTimeToWx(dtMod, ftCreate);
1016             if ( dtAccess )
1017                 ConvertFileTimeToWx(dtAccess, ftAccess);
1018             if ( dtChange )
1019                 ConvertFileTimeToWx(dtChange, ftWrite);
1020
1021             return TRUE;
1022         }
1023     }
1024 #else // other platform
1025 #endif // platforms
1026
1027     wxLogSysError(_("Failed to retrieve file times for '%s'"),
1028                   GetFullPath().c_str());
1029
1030     return FALSE;
1031 }
1032