src/common/filefn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/filefn.cpp
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22 #include "wx/defs.h"
  23
  24 #ifdef __BORLANDC__
  25     #pragma hdrstop
  26 #endif
  27
  28 #include "wx/utils.h"
  29 #include "wx/intl.h"
  30 #include "wx/file.h" // This does include filefn.h
  31 #include "wx/filename.h"
  32 #include "wx/dir.h"
  33
  34 // there are just too many of those...
  35 #ifdef __VISUALC__
  36     #pragma warning(disable:4706)   // assignment within conditional expression
  37 #endif // VC++
  38
  39 #include <ctype.h>
  40 #include <stdio.h>
  41 #include <stdlib.h>
  42 #include <string.h>
  43 #if !defined(__WATCOMC__)
  44     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  45         #include <errno.h>
  46     #endif
  47 #endif
  48
  49 #if defined(__WXMAC__)
  50     #include  "wx/mac/private.h"  // includes mac headers
  51 #endif
  52
  53 #include "wx/log.h"
  54
  55 #ifdef __WINDOWS__
  56     #include "wx/msw/private.h"
  57     #include "wx/msw/mslu.h"
  58
  59     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
  60     //
  61     // note that it must be included after <windows.h>
  62     #ifdef __GNUWIN32__
  63         #ifdef __CYGWIN__
  64             #include <sys/cygwin.h>
  65         #endif
  66     #endif // __GNUWIN32__
  67
  68     // io.h is needed for _get_osfhandle()
  69     // Already included by filefn.h for many Windows compilers
  70     #if defined __MWERKS__ || defined __CYGWIN__
  71         #include <io.h>
  72     #endif
  73 #endif // __WINDOWS__
  74
  75 #if defined(__VMS__)
  76     #include <fab.h>
  77 #endif
  78
  79 // TODO: Borland probably has _wgetcwd as well?
  80 #ifdef _MSC_VER
  81     #define HAVE_WGETCWD
  82 #endif
  83
  84 // ----------------------------------------------------------------------------
  85 // constants
  86 // ----------------------------------------------------------------------------
  87
  88 #ifndef _MAXPATHLEN
  89     #define _MAXPATHLEN 1024
  90 #endif
  91
  92 #ifdef __WXMAC__
  93 #    include "MoreFilesX.h"
  94 #endif
  95
  96 // ----------------------------------------------------------------------------
  97 // private globals
  98 // ----------------------------------------------------------------------------
  99
 100 // MT-FIXME: get rid of this horror and all code using it
 101 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 102
 103 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 104 //
 105 // VisualAge C++ V4.0 cannot have any external linkage const decs
 106 // in headers included by more than one primary source
 107 //
 108 const int wxInvalidOffset = -1;
 109 #endif
 110
 111 // ----------------------------------------------------------------------------
 112 // macros
 113 // ----------------------------------------------------------------------------
 114
 115 // we need to translate Mac filenames before passing them to OS functions
 116 #define OS_FILENAME(s) (s.fn_str())
 117
 118 // ============================================================================
 119 // implementation
 120 // ============================================================================
 121
 122 #ifdef wxNEED_WX_UNISTD_H
 123
 124 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 125 {
 126     return stat( wxConvFile.cWX2MB( file_name ), buf );
 127 }
 128
 129 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 130 {
 131     return access( wxConvFile.cWX2MB( pathname ), mode );
 132 }
 133
 134 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 135 {
 136     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 137 }
 138
 139 #endif
 140    // wxNEED_WX_UNISTD_H
 141
 142 // ----------------------------------------------------------------------------
 143 // wxPathList
 144 // ----------------------------------------------------------------------------
 145
 146 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 147
 148 static inline wxChar* MYcopystring(const wxString& s)
 149 {
 150     wxChar* copy = new wxChar[s.length() + 1];
 151     return wxStrcpy(copy, s.c_str());
 152 }
 153
 154 static inline wxChar* MYcopystring(const wxChar* s)
 155 {
 156     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 157     return wxStrcpy(copy, s);
 158 }
 159
 160 void wxPathList::Add (const wxString& path)
 161 {
 162     wxStringList::Add (WXSTRINGCAST path);
 163 }
 164
 165 // Add paths e.g. from the PATH environment variable
 166 void wxPathList::AddEnvList (const wxString& WXUNUSED_IN_WINCE(envVariable))
 167 {
 168     // No environment variables on WinCE
 169 #ifndef __WXWINCE__
 170     static const wxChar PATH_TOKS[] =
 171 #if defined(__WINDOWS__) || defined(__OS2__)
 172         /*
 173         The space has been removed from the tokenizers, otherwise a
 174         path such as "C:\Program Files" would be split into 2 paths:
 175         "C:\Program" and "Files"
 176         */
 177 //        wxT(" ;"); // Don't separate with colon in DOS (used for drive)
 178         wxT(";"); // Don't separate with colon in DOS (used for drive)
 179 #else
 180         wxT(" :;");
 181 #endif
 182
 183     wxString val ;
 184     if (wxGetEnv (WXSTRINGCAST envVariable, &val))
 185     {
 186         wxChar *s = MYcopystring (val);
 187         wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 188
 189         if (token)
 190         {
 191             Add(token);
 192             while (token)
 193             {
 194                 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
 195                     != NULL )
 196                 {
 197                     Add(token);
 198                 }
 199             }
 200         }
 201
 202         // suppress warning about unused variable save_ptr when wxStrtok() is a
 203         // macro which throws away its third argument
 204         save_ptr = token;
 205
 206         delete [] s;
 207     }
 208 #endif // !__WXWINCE__
 209 }
 210
 211 // Given a full filename (with path), ensure that that file can
 212 // be accessed again USING FILENAME ONLY by adding the path
 213 // to the list if not already there.
 214 void wxPathList::EnsureFileAccessible (const wxString& path)
 215 {
 216     wxString path_only(wxPathOnly(path));
 217     if ( !path_only.empty() )
 218     {
 219         if ( !Member(path_only) )
 220             Add(path_only);
 221     }
 222 }
 223
 224 bool wxPathList::Member (const wxString& path)
 225 {
 226   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 227   {
 228       wxString path2( node->GetData() );
 229       if (
 230 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined(__WXMAC__)
 231       // Case INDEPENDENT
 232           path.CompareTo (path2, wxString::ignoreCase) == 0
 233 #else
 234       // Case sensitive File System
 235           path.CompareTo (path2) == 0
 236 #endif
 237         )
 238         return true;
 239   }
 240   return false;
 241 }
 242
 243 wxString wxPathList::FindValidPath (const wxString& file)
 244 {
 245   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 246     return wxString(wxFileFunctionsBuffer);
 247
 248   wxChar buf[_MAXPATHLEN];
 249   wxStrcpy(buf, wxFileFunctionsBuffer);
 250
 251   wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 252
 253   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 254     {
 255       const wxChar *path = node->GetData();
 256       wxStrcpy (wxFileFunctionsBuffer, path);
 257       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 258       if (ch != wxT('\\') && ch != wxT('/'))
 259         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 260       wxStrcat (wxFileFunctionsBuffer, filename);
 261 #ifdef __WINDOWS__
 262       wxUnix2DosFilename (wxFileFunctionsBuffer);
 263 #endif
 264       if (wxFileExists (wxFileFunctionsBuffer))
 265       {
 266         return wxString(wxFileFunctionsBuffer);        // Found!
 267       }
 268     }                                // for()
 269
 270   return wxEmptyString;                    // Not found
 271 }
 272
 273 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 274 {
 275     wxString f = FindValidPath(file);
 276     if ( f.empty() || wxIsAbsolutePath(f) )
 277         return f;
 278
 279     wxString buf = ::wxGetCwd();
 280
 281     if ( !wxEndsWithPathSeparator(buf) )
 282     {
 283         buf += wxFILE_SEP_PATH;
 284     }
 285     buf += f;
 286
 287     return buf;
 288 }
 289
 290 bool
 291 wxFileExists (const wxString& filename)
 292 {
 293 #if defined(__WXPALMOS__)
 294     return false;
 295 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
 296     // we must use GetFileAttributes() instead of the ANSI C functions because
 297     // it can cope with network (UNC) paths unlike them
 298     DWORD ret = ::GetFileAttributes(filename);
 299
 300     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 301 #else // !__WIN32__
 302     wxStructStat st;
 303 #ifndef wxNEED_WX_UNISTD_H
 304     return wxStat( filename.fn_str() , &st) == 0 && (st.st_mode & S_IFREG);
 305 #else
 306     return wxStat( filename , &st) == 0 && (st.st_mode & S_IFREG);
 307 #endif
 308 #endif // __WIN32__/!__WIN32__
 309 }
 310
 311 bool
 312 wxIsAbsolutePath (const wxString& filename)
 313 {
 314     if (!filename.empty())
 315     {
 316 #if defined(__WXMAC__) && !defined(__DARWIN__)
 317         // Classic or Carbon CodeWarrior like
 318         // Carbon with Apple DevTools is Unix like
 319
 320         // This seems wrong to me, but there is no fix. since
 321         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 322         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 323         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 324             return true ;
 325 #else
 326         // Unix like or Windows
 327         if (filename[0] == wxT('/'))
 328             return true;
 329 #endif
 330 #ifdef __VMS__
 331         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 332             return true;
 333 #endif
 334 #if defined(__WINDOWS__) || defined(__OS2__)
 335         // MSDOS like
 336         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 337             return true;
 338 #endif
 339     }
 340     return false ;
 341 }
 342
 343 /*
 344  * Strip off any extension (dot something) from end of file,
 345  * IF one exists. Inserts zero into buffer.
 346  *
 347  */
 348
 349 void wxStripExtension(wxChar *buffer)
 350 {
 351     int len = wxStrlen(buffer);
 352     int i = len-1;
 353     while (i > 0)
 354     {
 355         if (buffer[i] == wxT('.'))
 356         {
 357             buffer[i] = 0;
 358             break;
 359         }
 360         i --;
 361     }
 362 }
 363
 364 void wxStripExtension(wxString& buffer)
 365 {
 366     //RN:  Be careful about the handling the case where
 367     //buffer.length() == 0
 368     for(size_t i = buffer.length() - 1; i != wxString::npos; --i)
 369     {
 370         if (buffer.GetChar(i) == wxT('.'))
 371         {
 372           buffer = buffer.Left(i);
 373           break;
 374         }
 375     }
 376 }
 377
 378 // Destructive removal of /./ and /../ stuff
 379 wxChar *wxRealPath (wxChar *path)
 380 {
 381 #ifdef __WXMSW__
 382   static const wxChar SEP = wxT('\\');
 383   wxUnix2DosFilename(path);
 384 #else
 385   static const wxChar SEP = wxT('/');
 386 #endif
 387   if (path[0] && path[1]) {
 388     /* MATTHEW: special case "/./x" */
 389     wxChar *p;
 390     if (path[2] == SEP && path[1] == wxT('.'))
 391       p = &path[0];
 392     else
 393       p = &path[2];
 394     for (; *p; p++)
 395       {
 396         if (*p == SEP)
 397           {
 398             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 399               {
 400                 wxChar *q;
 401                 for (q = p - 1; q >= path && *q != SEP; q--)
 402                 {
 403                     // Empty
 404                 }
 405
 406                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 407                     && (q - 1 <= path || q[-1] != SEP))
 408                   {
 409                     wxStrcpy (q, p + 3);
 410                     if (path[0] == wxT('\0'))
 411                       {
 412                         path[0] = SEP;
 413                         path[1] = wxT('\0');
 414                       }
 415 #if defined(__WXMSW__) || defined(__OS2__)
 416                     /* Check that path[2] is NULL! */
 417                     else if (path[1] == wxT(':') && !path[2])
 418                       {
 419                         path[2] = SEP;
 420                         path[3] = wxT('\0');
 421                       }
 422 #endif
 423                     p = q - 1;
 424                   }
 425               }
 426             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 427               wxStrcpy (p, p + 2);
 428           }
 429       }
 430   }
 431   return path;
 432 }
 433
 434 wxString wxRealPath(const wxString& path)
 435 {
 436     wxChar *buf1=MYcopystring(path);
 437     wxChar *buf2=wxRealPath(buf1);
 438     wxString buf(buf2);
 439     delete [] buf1;
 440     return buf;
 441 }
 442
 443
 444 // Must be destroyed
 445 wxChar *wxCopyAbsolutePath(const wxString& filename)
 446 {
 447     if (filename.empty())
 448         return (wxChar *) NULL;
 449
 450     if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename)))
 451     {
 452         wxString buf = ::wxGetCwd();
 453         wxChar ch = buf.Last();
 454 #ifdef __WXMSW__
 455         if (ch != wxT('\\') && ch != wxT('/'))
 456             buf << wxT("\\");
 457 #else
 458         if (ch != wxT('/'))
 459             buf << wxT("/");
 460 #endif
 461         buf << wxFileFunctionsBuffer;
 462         buf = wxRealPath( buf );
 463         return MYcopystring( buf );
 464     }
 465     return MYcopystring( wxFileFunctionsBuffer );
 466 }
 467
 468 /*-
 469  Handles:
 470    ~/ => home dir
 471    ~user/ => user's home dir
 472    If the environment variable a = "foo" and b = "bar" then:
 473    Unix:
 474         $a        =>        foo
 475         $a$b        =>        foobar
 476         $a.c        =>        foo.c
 477         xxx$a        =>        xxxfoo
 478         ${a}!        =>        foo!
 479         $(b)!        =>        bar!
 480         \$a        =>        \$a
 481    MSDOS:
 482         $a        ==>        $a
 483         $(a)        ==>        foo
 484         $(a)$b        ==>        foo$b
 485         $(a)$(b)==>        foobar
 486         test.$$        ==>        test.$$
 487  */
 488
 489 /* input name in name, pathname output to buf. */
 490
 491 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 492 {
 493     register wxChar *d, *s, *nm;
 494     wxChar          lnm[_MAXPATHLEN];
 495     int             q;
 496
 497     // Some compilers don't like this line.
 498 //    const wxChar    trimchars[] = wxT("\n \t");
 499
 500     wxChar      trimchars[4];
 501     trimchars[0] = wxT('\n');
 502     trimchars[1] = wxT(' ');
 503     trimchars[2] = wxT('\t');
 504     trimchars[3] = 0;
 505
 506 #ifdef __WXMSW__
 507     const wxChar     SEP = wxT('\\');
 508 #else
 509     const wxChar     SEP = wxT('/');
 510 #endif
 511     buf[0] = wxT('\0');
 512     if (name == NULL || *name == wxT('\0'))
 513         return buf;
 514     nm = MYcopystring(name); // Make a scratch copy
 515     wxChar *nm_tmp = nm;
 516
 517     /* Skip leading whitespace and cr */
 518     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 519         nm++;
 520     /* And strip off trailing whitespace and cr */
 521     s = nm + (q = wxStrlen(nm)) - 1;
 522     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 523         *s = wxT('\0');
 524
 525     s = nm;
 526     d = lnm;
 527 #ifdef __WXMSW__
 528     q = FALSE;
 529 #else
 530     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 531 #endif
 532
 533     /* Expand inline environment variables */
 534 #ifdef __VISAGECPP__
 535     while (*d)
 536     {
 537       *d++ = *s;
 538       if(*s == wxT('\\'))
 539       {
 540         *(d - 1) = *++s;
 541         if (*d)
 542         {
 543           s++;
 544           continue;
 545         }
 546         else
 547            break;
 548       }
 549       else
 550 #else
 551     while ((*d++ = *s) != 0) {
 552 #  ifndef __WXMSW__
 553         if (*s == wxT('\\')) {
 554             if ((*(d - 1) = *++s)!=0) {
 555                 s++;
 556                 continue;
 557             } else
 558                 break;
 559         } else
 560 #  endif
 561 #endif
 562             // No env variables on WinCE
 563 #ifndef __WXWINCE__
 564 #ifdef __WXMSW__
 565         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 566 #else
 567         if (*s++ == wxT('$'))
 568 #endif
 569         {
 570             register wxChar  *start = d;
 571             register int     braces = (*s == wxT('{') || *s == wxT('('));
 572             register wxChar  *value;
 573             while ((*d++ = *s) != 0)
 574                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 575                     break;
 576                 else
 577                     s++;
 578             *--d = 0;
 579             value = wxGetenv(braces ? start + 1 : start);
 580             if (value) {
 581                 for ((d = start - 1); (*d++ = *value++) != 0;)
 582                 {
 583                     // Empty
 584                 }
 585
 586                 d--;
 587                 if (braces && *s)
 588                     s++;
 589             }
 590         }
 591 #endif
 592         // __WXWINCE__
 593     }
 594
 595     /* Expand ~ and ~user */
 596     nm = lnm;
 597     if (nm[0] == wxT('~') && !q)
 598     {
 599         /* prefix ~ */
 600         if (nm[1] == SEP || nm[1] == 0)
 601         {        /* ~/filename */
 602         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 603             if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
 604                 if (*++nm)
 605                     nm++;
 606             }
 607         } else
 608         {                /* ~user/filename */
 609             register wxChar  *nnm;
 610             register wxChar  *home;
 611             for (s = nm; *s && *s != SEP; s++)
 612             {
 613                 // Empty
 614             }
 615             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 616             was_sep = (*s == SEP);
 617             nnm = *s ? s + 1 : s;
 618             *s = 0;
 619         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 620             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL)
 621             {
 622                 if (was_sep) /* replace only if it was there: */
 623                     *s = SEP;
 624                 s = NULL;
 625             }
 626             else
 627             {
 628                 nm = nnm;
 629                 s = home;
 630             }
 631         }
 632     }
 633
 634     d = buf;
 635     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 636         /* Copy home dir */
 637         while (wxT('\0') != (*d++ = *s++))
 638           /* loop */;
 639         // Handle root home
 640         if (d - 1 > buf && *(d - 2) != SEP)
 641           *(d - 1) = SEP;
 642     }
 643     s = nm;
 644     while ((*d++ = *s++) != 0)
 645     {
 646         // Empty
 647     }
 648     delete[] nm_tmp; // clean up alloc
 649     /* Now clean up the buffer */
 650     return wxRealPath(buf);
 651 }
 652
 653 /* Contract Paths to be build upon an environment variable
 654    component:
 655
 656    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 657
 658    The call wxExpandPath can convert these back!
 659  */
 660 wxChar *
 661 wxContractPath (const wxString& filename,
 662                 const wxString& WXUNUSED_IN_WINCE(envname),
 663                 const wxString& user)
 664 {
 665   static wxChar dest[_MAXPATHLEN];
 666
 667   if (filename.empty())
 668     return (wxChar *) NULL;
 669
 670   wxStrcpy (dest, WXSTRINGCAST filename);
 671 #ifdef __WXMSW__
 672   wxUnix2DosFilename(dest);
 673 #endif
 674
 675   // Handle environment
 676   const wxChar *val;
 677 #ifndef __WXWINCE__
 678   wxChar *tcp;
 679   if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 680      (tcp = wxStrstr (dest, val)) != NULL)
 681     {
 682         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 683         *tcp++ = wxT('$');
 684         *tcp++ = wxT('{');
 685         wxStrcpy (tcp, WXSTRINGCAST envname);
 686         wxStrcat (tcp, wxT("}"));
 687         wxStrcat (tcp, wxFileFunctionsBuffer);
 688     }
 689 #endif
 690
 691   // Handle User's home (ignore root homes!)
 692   val = wxGetUserHome (user);
 693   if (!val)
 694     return dest;
 695
 696   const size_t len = wxStrlen(val);
 697   if (len <= 2)
 698     return dest;
 699
 700   if (wxStrncmp(dest, val, len) == 0)
 701   {
 702     wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 703     if (!user.empty())
 704            wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 705     wxStrcat(wxFileFunctionsBuffer, dest + len);
 706     wxStrcpy (dest, wxFileFunctionsBuffer);
 707   }
 708
 709   return dest;
 710 }
 711
 712 // Return just the filename, not the path (basename)
 713 wxChar *wxFileNameFromPath (wxChar *path)
 714 {
 715     wxString p = path;
 716     wxString n = wxFileNameFromPath(p);
 717
 718     return path + p.length() - n.length();
 719 }
 720
 721 wxString wxFileNameFromPath (const wxString& path)
 722 {
 723     wxString name, ext;
 724     wxFileName::SplitPath(path, NULL, &name, &ext);
 725
 726     wxString fullname = name;
 727     if ( !ext.empty() )
 728     {
 729         fullname << wxFILE_SEP_EXT << ext;
 730     }
 731
 732     return fullname;
 733 }
 734
 735 // Return just the directory, or NULL if no directory
 736 wxChar *
 737 wxPathOnly (wxChar *path)
 738 {
 739     if (path && *path)
 740     {
 741         static wxChar buf[_MAXPATHLEN];
 742
 743         // Local copy
 744         wxStrcpy (buf, path);
 745
 746         int l = wxStrlen(path);
 747         int i = l - 1;
 748
 749         // Search backward for a backward or forward slash
 750         while (i > -1)
 751         {
 752 #if defined(__WXMAC__) && !defined(__DARWIN__)
 753             // Classic or Carbon CodeWarrior like
 754             // Carbon with Apple DevTools is Unix like
 755             if (path[i] == wxT(':') )
 756             {
 757                 buf[i] = 0;
 758                 return buf;
 759             }
 760 #else
 761             // Unix like or Windows
 762             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 763             {
 764                 buf[i] = 0;
 765                 return buf;
 766             }
 767 #endif
 768 #ifdef __VMS__
 769             if (path[i] == wxT(']'))
 770             {
 771                 buf[i+1] = 0;
 772                 return buf;
 773             }
 774 #endif
 775             i --;
 776         }
 777
 778 #if defined(__WXMSW__) || defined(__OS2__)
 779         // Try Drive specifier
 780         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 781         {
 782             // A:junk --> A:. (since A:.\junk Not A:\junk)
 783             buf[2] = wxT('.');
 784             buf[3] = wxT('\0');
 785             return buf;
 786         }
 787 #endif
 788     }
 789     return (wxChar *) NULL;
 790 }
 791
 792 // Return just the directory, or NULL if no directory
 793 wxString wxPathOnly (const wxString& path)
 794 {
 795     if (!path.empty())
 796     {
 797         wxChar buf[_MAXPATHLEN];
 798
 799         // Local copy
 800         wxStrcpy (buf, WXSTRINGCAST path);
 801
 802         int l = path.length();
 803         int i = l - 1;
 804
 805         // Search backward for a backward or forward slash
 806         while (i > -1)
 807         {
 808 #if defined(__WXMAC__) && !defined(__DARWIN__)
 809             // Classic or Carbon CodeWarrior like
 810             // Carbon with Apple DevTools is Unix like
 811             if (path[i] == wxT(':') )
 812             {
 813                 buf[i] = 0;
 814                 return wxString(buf);
 815             }
 816 #else
 817             // Unix like or Windows
 818             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 819             {
 820                 // Don't return an empty string
 821                 if (i == 0)
 822                     i ++;
 823                 buf[i] = 0;
 824                 return wxString(buf);
 825             }
 826 #endif
 827 #ifdef __VMS__
 828             if (path[i] == wxT(']'))
 829             {
 830                 buf[i+1] = 0;
 831                 return wxString(buf);
 832             }
 833 #endif
 834             i --;
 835         }
 836
 837 #if defined(__WXMSW__) || defined(__OS2__)
 838         // Try Drive specifier
 839         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 840         {
 841             // A:junk --> A:. (since A:.\junk Not A:\junk)
 842             buf[2] = wxT('.');
 843             buf[3] = wxT('\0');
 844             return wxString(buf);
 845         }
 846 #endif
 847     }
 848     return wxEmptyString;
 849 }
 850
 851 // Utility for converting delimiters in DOS filenames to UNIX style
 852 // and back again - or we get nasty problems with delimiters.
 853 // Also, convert to lower case, since case is significant in UNIX.
 854
 855 #if defined(__WXMAC__)
 856
 857 #if TARGET_API_MAC_OSX
 858 #define kDefaultPathStyle kCFURLPOSIXPathStyle
 859 #else
 860 #define kDefaultPathStyle kCFURLHFSPathStyle
 861 #endif
 862
 863 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
 864 {
 865     CFURLRef fullURLRef;
 866     fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
 867     if ( additionalPathComponent )
 868     {
 869         CFURLRef parentURLRef = fullURLRef ;
 870         fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
 871             additionalPathComponent,false);
 872         CFRelease( parentURLRef ) ;
 873     }
 874     CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
 875     CFRelease( fullURLRef ) ;
 876     return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
 877 }
 878
 879 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
 880 {
 881     OSStatus err = noErr ;
 882     CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
 883     if ( NULL != url )
 884     {
 885         if ( CFURLGetFSRef(url, fsRef) == false )
 886             err = fnfErr ;
 887         CFRelease( url ) ;
 888     }
 889     else
 890     {
 891         err = fnfErr ;
 892     }
 893     return err ;
 894 }
 895
 896 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
 897 {
 898     CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
 899                                                       uniname->unicode,
 900                                                       uniname->length );
 901     return wxMacCFStringHolder(cfname).AsString() ;
 902 }
 903
 904 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 905 {
 906     FSRef fsRef ;
 907     if ( FSpMakeFSRef( spec , &fsRef) == noErr )
 908     {
 909         return wxMacFSRefToPath( &fsRef ) ;
 910     }
 911     return wxEmptyString ;
 912 }
 913
 914 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
 915 {
 916     OSStatus err = noErr ;
 917     FSRef fsRef ;
 918     wxMacPathToFSRef( path , &fsRef ) ;
 919     err = FSRefMakeFSSpec( &fsRef , spec ) ;
 920 }
 921
 922 #endif // __WXMAC__
 923
 924 void
 925 wxDos2UnixFilename (wxChar *s)
 926 {
 927   if (s)
 928     while (*s)
 929       {
 930         if (*s == _T('\\'))
 931           *s = _T('/');
 932 #ifdef __WXMSW__
 933         else
 934           *s = (wxChar)wxTolower (*s);        // Case INDEPENDENT
 935 #endif
 936         s++;
 937       }
 938 }
 939
 940 void
 941 #if defined(__WXMSW__) || defined(__OS2__)
 942 wxUnix2DosFilename (wxChar *s)
 943 #else
 944 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 945 #endif
 946 {
 947 // Yes, I really mean this to happen under DOS only! JACS
 948 #if defined(__WXMSW__) || defined(__OS2__)
 949   if (s)
 950     while (*s)
 951       {
 952         if (*s == wxT('/'))
 953           *s = wxT('\\');
 954         s++;
 955       }
 956 #endif
 957 }
 958
 959 // Concatenate two files to form third
 960 bool
 961 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 962 {
 963 #if wxUSE_FILE
 964
 965     wxFile in1(file1), in2(file2);
 966     wxTempFile out(file3);
 967
 968     if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
 969         return false;
 970
 971     ssize_t ofs;
 972     unsigned char buf[1024];
 973
 974     for( int i=0; i<2; i++)
 975     {
 976         wxFile *in = i==0 ? &in1 : &in2;
 977         do{
 978             if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
 979             if ( ofs > 0 )
 980                 if ( !out.Write(buf,ofs) )
 981                     return false;
 982         } while ( ofs == (ssize_t)WXSIZEOF(buf) );
 983     }
 984
 985     return out.Commit();
 986
 987 #else
 988
 989     wxUnusedVar(file1);
 990     wxUnusedVar(file2);
 991     wxUnusedVar(file3);
 992     return false;
 993
 994 #endif
 995 }
 996
 997 // Copy files
 998 bool
 999 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1000 {
1001 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1002     // CopyFile() copies file attributes and modification time too, so use it
1003     // instead of our code if available
1004     //
1005     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1006     if ( !::CopyFile(file1, file2, !overwrite) )
1007     {
1008         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1009                       file1.c_str(), file2.c_str());
1010
1011         return false;
1012     }
1013 #elif defined(__OS2__)
1014     if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1015         return false;
1016 #elif defined(__PALMOS__)
1017     // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1018     return false;
1019 #elif wxUSE_FILE // !Win32
1020
1021     wxStructStat fbuf;
1022     // get permissions of file1
1023     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1024     {
1025         // the file probably doesn't exist or we haven't the rights to read
1026         // from it anyhow
1027         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1028                       file1.c_str());
1029         return false;
1030     }
1031
1032     // open file1 for reading
1033     wxFile fileIn(file1, wxFile::read);
1034     if ( !fileIn.IsOpened() )
1035         return false;
1036
1037     // remove file2, if it exists. This is needed for creating
1038     // file2 with the correct permissions in the next step
1039     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1040     {
1041         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1042                       file2.c_str());
1043         return false;
1044     }
1045
1046     // reset the umask as we want to create the file with exactly the same
1047     // permissions as the original one
1048     wxCHANGE_UMASK(0);
1049
1050     // create file2 with the same permissions than file1 and open it for
1051     // writing
1052
1053     wxFile fileOut;
1054     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1055         return false;
1056
1057     // copy contents of file1 to file2
1058     char buf[4096];
1059     size_t count;
1060     for ( ;; )
1061     {
1062         count = fileIn.Read(buf, WXSIZEOF(buf));
1063         if ( fileIn.Error() )
1064             return false;
1065
1066         // end of file?
1067         if ( !count )
1068             break;
1069
1070         if ( fileOut.Write(buf, count) < count )
1071             return false;
1072     }
1073
1074     // we can expect fileIn to be closed successfully, but we should ensure
1075     // that fileOut was closed as some write errors (disk full) might not be
1076     // detected before doing this
1077     if ( !fileIn.Close() || !fileOut.Close() )
1078         return false;
1079
1080 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1081     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1082     // however
1083     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1084     {
1085         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1086                       file2.c_str());
1087         return false;
1088     }
1089 #endif // OS/2 || Mac
1090
1091 #else // !Win32 && ! wxUSE_FILE
1092
1093     // impossible to simulate with wxWidgets API
1094     wxUnusedVar(file1);
1095     wxUnusedVar(file2);
1096     wxUnusedVar(overwrite);
1097     return false;
1098
1099 #endif // __WXMSW__ && __WIN32__
1100
1101     return true;
1102 }
1103
1104 bool
1105 wxRenameFile (const wxString& file1, const wxString& file2)
1106 {
1107 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1108     // Normal system call
1109   if ( wxRename (file1, file2) == 0 )
1110     return true;
1111 #endif
1112
1113   // Try to copy
1114   if (wxCopyFile(file1, file2)) {
1115     wxRemoveFile(file1);
1116     return true;
1117   }
1118   // Give up
1119   return false;
1120 }
1121
1122 bool wxRemoveFile(const wxString& file)
1123 {
1124 #if defined(__VISUALC__) \
1125  || defined(__BORLANDC__) \
1126  || defined(__WATCOMC__) \
1127  || defined(__DMC__) \
1128  || defined(__GNUWIN32__) \
1129  || (defined(__MWERKS__) && defined(__MSL__))
1130     int res = wxRemove(file);
1131 #elif defined(__WXMAC__)
1132     int res = unlink(wxFNCONV(file));
1133 #elif defined(__WXPALMOS__)
1134     int res = 1;
1135     // TODO with VFSFileDelete()
1136 #else
1137     int res = unlink(OS_FILENAME(file));
1138 #endif
1139
1140     return res == 0;
1141 }
1142
1143 bool wxMkdir(const wxString& dir, int perm)
1144 {
1145 #if defined(__WXPALMOS__)
1146     return false;
1147 #elif defined(__WXMAC__) && !defined(__UNIX__)
1148     return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1149 #else // !Mac
1150     const wxChar *dirname = dir.c_str();
1151
1152     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1153     // for the GNU compiler
1154 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1155   #if defined(MSVCRT)
1156     wxUnusedVar(perm);
1157     if ( mkdir(wxFNCONV(dirname)) != 0 )
1158   #else
1159     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1160   #endif
1161 #elif defined(__OS2__)
1162     wxUnusedVar(perm);
1163     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1164 #elif defined(__DOS__)
1165   #if defined(__WATCOMC__)
1166     (void)perm;
1167     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1168   #elif defined(__DJGPP__)
1169     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1170   #else
1171     #error "Unsupported DOS compiler!"
1172   #endif
1173 #else  // !MSW, !DOS and !OS/2 VAC++
1174     wxUnusedVar(perm);
1175 #ifdef __WXWINCE__
1176     if ( !CreateDirectory(dirname, NULL) )
1177 #else
1178     if ( wxMkDir(dir.fn_str()) != 0 )
1179 #endif
1180 #endif // !MSW/MSW
1181     {
1182         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1183
1184         return false;
1185     }
1186
1187     return true;
1188 #endif // Mac/!Mac
1189 }
1190
1191 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1192 {
1193 #if defined(__VMS__)
1194     return false; //to be changed since rmdir exists in VMS7.x
1195 #elif defined(__OS2__)
1196     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1197 #elif defined(__WXWINCE__)
1198     return (CreateDirectory(dir, NULL) != 0);
1199 #elif defined(__WXPALMOS__)
1200     // TODO with VFSFileRename()
1201     return false;
1202 #else
1203     return (wxRmDir(OS_FILENAME(dir)) == 0);
1204 #endif
1205 }
1206
1207 // does the path exists? (may have or not '/' or '\\' at the end)
1208 bool wxDirExists(const wxChar *pszPathName)
1209 {
1210     wxString strPath(pszPathName);
1211
1212 #if defined(__WINDOWS__) || defined(__OS2__)
1213     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1214     // so remove all trailing backslashes from the path - but don't do this for
1215     // the pathes "d:\" (which are different from "d:") nor for just "\"
1216     while ( wxEndsWithPathSeparator(strPath) )
1217     {
1218         size_t len = strPath.length();
1219         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1220             break;
1221
1222         strPath.Truncate(len - 1);
1223     }
1224 #endif // __WINDOWS__
1225
1226 #ifdef __OS2__
1227     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1228     if (strPath.length() == 2 && strPath[1u] == _T(':'))
1229         strPath << _T('.');
1230 #endif
1231
1232 #if defined(__WXPALMOS__)
1233     return false;
1234 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1235     // stat() can't cope with network paths
1236     DWORD ret = ::GetFileAttributes(strPath);
1237
1238     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1239 #elif defined(__OS2__)
1240     FILESTATUS3 Info = {{0}};
1241     APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
1242                                    (void*) &Info, sizeof(FILESTATUS3));
1243
1244     return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
1245       (rc == ERROR_SHARING_VIOLATION);
1246     // If we got a sharing violation, there must be something with this name.
1247 #else // !__WIN32__
1248
1249     wxStructStat st;
1250 #ifndef __VISAGECPP__
1251     return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1252 #else
1253     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1254     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1255 #endif
1256
1257 #endif // __WIN32__/!__WIN32__
1258 }
1259
1260 // Get a temporary filename, opening and closing the file.
1261 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1262 {
1263 #if wxUSE_FILE
1264     wxString filename = wxFileName::CreateTempFileName(prefix);
1265     if ( filename.empty() )
1266         return NULL;
1267
1268     if ( buf )
1269         wxStrcpy(buf, filename);
1270     else
1271         buf = MYcopystring(filename);
1272
1273     return buf;
1274 #else
1275     wxUnusedVar(prefix);
1276     wxUnusedVar(buf);
1277     // wxFileName::CreateTempFileName needs wxFile class enabled
1278     return NULL;
1279 #endif
1280 }
1281
1282 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1283 {
1284     buf = wxGetTempFileName(prefix);
1285
1286     return !buf.empty();
1287 }
1288
1289 // Get first file name matching given wild card.
1290
1291 static wxDir *gs_dir = NULL;
1292 static wxString gs_dirPath;
1293
1294 wxString wxFindFirstFile(const wxChar *spec, int flags)
1295 {
1296     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1297     if ( gs_dirPath.empty() )
1298         gs_dirPath = wxT(".");
1299     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1300         gs_dirPath << wxFILE_SEP_PATH;
1301
1302     if (gs_dir)
1303         delete gs_dir;
1304     gs_dir = new wxDir(gs_dirPath);
1305
1306     if ( !gs_dir->IsOpened() )
1307     {
1308         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1309         return wxEmptyString;
1310     }
1311
1312     int dirFlags;
1313     switch (flags)
1314     {
1315         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1316         case wxFILE: dirFlags = wxDIR_FILES; break;
1317         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1318     }
1319
1320     wxString result;
1321     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1322     if ( result.empty() )
1323     {
1324         wxDELETE(gs_dir);
1325         return result;
1326     }
1327
1328     return gs_dirPath + result;
1329 }
1330
1331 wxString wxFindNextFile()
1332 {
1333     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1334
1335     wxString result;
1336     gs_dir->GetNext(&result);
1337
1338     if ( result.empty() )
1339     {
1340         wxDELETE(gs_dir);
1341         return result;
1342     }
1343
1344     return gs_dirPath + result;
1345 }
1346
1347
1348 // Get current working directory.
1349 // If buf is NULL, allocates space using new, else copies into buf.
1350 // wxGetWorkingDirectory() is obsolete, use wxGetCwd()
1351 // wxDoGetCwd() is their common core to be moved
1352 // to wxGetCwd() once wxGetWorkingDirectory() will be removed.
1353 // Do not expose wxDoGetCwd in headers!
1354
1355 wxChar *wxDoGetCwd(wxChar *buf, int sz)
1356 {
1357 #if defined(__WXPALMOS__)
1358     // TODO
1359     if(buf && sz>0) buf[0] = _T('\0');
1360     return buf;
1361 #elif defined(__WXWINCE__)
1362     // TODO
1363     if(buf && sz>0) buf[0] = _T('\0');
1364     return buf;
1365 #else
1366     if ( !buf )
1367     {
1368         buf = new wxChar[sz + 1];
1369     }
1370
1371     bool ok wxDUMMY_INITIALIZE(false);
1372
1373     // for the compilers which have Unicode version of _getcwd(), call it
1374     // directly, for the others call the ANSI version and do the translation
1375 #if !wxUSE_UNICODE
1376     #define cbuf buf
1377 #else // wxUSE_UNICODE
1378     bool needsANSI = true;
1379
1380     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1381         char cbuf[_MAXPATHLEN];
1382     #endif
1383
1384     #ifdef HAVE_WGETCWD
1385         #if wxUSE_UNICODE_MSLU
1386             if ( wxGetOsVersion() != wxWIN95 )
1387         #else
1388             char *cbuf = NULL; // never really used because needsANSI will always be false
1389         #endif
1390             {
1391                 ok = _wgetcwd(buf, sz) != NULL;
1392                 needsANSI = false;
1393             }
1394     #endif
1395
1396     if ( needsANSI )
1397 #endif // wxUSE_UNICODE
1398     {
1399     #if defined(_MSC_VER) || defined(__MINGW32__)
1400         ok = _getcwd(cbuf, sz) != NULL;
1401     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1402         char lbuf[1024] ;
1403         if ( getcwd( lbuf , sizeof( lbuf ) ) )
1404         {
1405             wxString res( lbuf , *wxConvCurrent ) ;
1406             wxStrcpy( buf , res ) ;
1407             ok = true;
1408         }
1409         else
1410             ok = false ;
1411     #elif defined(__OS2__)
1412         APIRET rc;
1413         ULONG ulDriveNum = 0;
1414         ULONG ulDriveMap = 0;
1415         rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1416         ok = rc == 0;
1417         if (ok)
1418         {
1419             sz -= 3;
1420             rc = ::DosQueryCurrentDir( 0 // current drive
1421                                       ,cbuf + 3
1422                                       ,(PULONG)&sz
1423                                      );
1424             cbuf[0] = char('A' + (ulDriveNum - 1));
1425             cbuf[1] = ':';
1426             cbuf[2] = '\\';
1427             ok = rc == 0;
1428         }
1429     #else // !Win32/VC++ !Mac !OS2
1430         ok = getcwd(cbuf, sz) != NULL;
1431     #endif // platform
1432
1433     #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1434         // finally convert the result to Unicode if needed
1435         wxConvFile.MB2WC(buf, cbuf, sz);
1436     #endif // wxUSE_UNICODE
1437     }
1438
1439     if ( !ok )
1440     {
1441         wxLogSysError(_("Failed to get the working directory"));
1442
1443         // VZ: the old code used to return "." on error which didn't make any
1444         //     sense at all to me - empty string is a better error indicator
1445         //     (NULL might be even better but I'm afraid this could lead to
1446         //     problems with the old code assuming the return is never NULL)
1447         buf[0] = _T('\0');
1448     }
1449     else // ok, but we might need to massage the path into the right format
1450     {
1451 #ifdef __DJGPP__
1452         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1453         //     with / deliminers. We don't like that.
1454         for (wxChar *ch = buf; *ch; ch++)
1455         {
1456             if (*ch == wxT('/'))
1457                 *ch = wxT('\\');
1458         }
1459 #endif // __DJGPP__
1460
1461 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1462 //      he needs Unix as opposed to Win32 pathnames
1463 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1464         // another example of DOS/Unix mix (Cygwin)
1465         wxString pathUnix = buf;
1466 #if wxUSE_UNICODE
1467         char bufA[_MAXPATHLEN];
1468         cygwin_conv_to_full_win32_path(pathUnix.mb_str(wxConvFile), bufA);
1469         wxConvFile.MB2WC(buf, bufA, sz);
1470 #else
1471         cygwin_conv_to_full_win32_path(pathUnix, buf);
1472 #endif // wxUSE_UNICODE
1473 #endif // __CYGWIN__
1474     }
1475
1476     return buf;
1477
1478 #if !wxUSE_UNICODE
1479     #undef cbuf
1480 #endif
1481
1482 #endif
1483     // __WXWINCE__
1484 }
1485
1486 #if WXWIN_COMPATIBILITY_2_6
1487 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1488 {
1489     return wxDoGetCwd(buf,sz);
1490 }
1491 #endif // WXWIN_COMPATIBILITY_2_6
1492
1493 wxString wxGetCwd()
1494 {
1495     wxString str;
1496     wxDoGetCwd(wxStringBuffer(str, _MAXPATHLEN), _MAXPATHLEN);
1497     return str;
1498 }
1499
1500 bool wxSetWorkingDirectory(const wxString& d)
1501 {
1502 #if defined(__OS2__)
1503     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1504 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1505     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1506 #elif defined(__WINDOWS__)
1507
1508 #ifdef __WIN32__
1509 #ifdef __WXWINCE__
1510     // No equivalent in WinCE
1511     wxUnusedVar(d);
1512     return false;
1513 #else
1514     return (bool)(SetCurrentDirectory(d) != 0);
1515 #endif
1516 #else
1517     // Must change drive, too.
1518     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1519     if (isDriveSpec)
1520     {
1521         wxChar firstChar = d[0];
1522
1523         // To upper case
1524         if (firstChar > 90)
1525             firstChar = firstChar - 32;
1526
1527         // To a drive number
1528         unsigned int driveNo = firstChar - 64;
1529         if (driveNo > 0)
1530         {
1531             unsigned int noDrives;
1532             _dos_setdrive(driveNo, &noDrives);
1533         }
1534     }
1535     bool success = (chdir(WXSTRINGCAST d) == 0);
1536
1537     return success;
1538 #endif
1539
1540 #endif
1541 }
1542
1543 // Get the OS directory if appropriate (such as the Windows directory).
1544 // On non-Windows platform, probably just return the empty string.
1545 wxString wxGetOSDirectory()
1546 {
1547 #ifdef __WXWINCE__
1548     return wxString(wxT("\\Windows"));
1549 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1550     wxChar buf[256];
1551     GetWindowsDirectory(buf, 256);
1552     return wxString(buf);
1553 #elif defined(__WXMAC__)
1554     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1555 #else
1556     return wxEmptyString;
1557 #endif
1558 }
1559
1560 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1561 {
1562     size_t len = wxStrlen(pszFileName);
1563
1564     return len && wxIsPathSeparator(pszFileName[len - 1]);
1565 }
1566
1567 // find a file in a list of directories, returns false if not found
1568 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1569 {
1570     // we assume that it's not empty
1571     wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1572                  _T("empty file name in wxFindFileInPath"));
1573
1574     // skip path separator in the beginning of the file name if present
1575     if ( wxIsPathSeparator(*pszFile) )
1576         pszFile++;
1577
1578     // copy the path (strtok will modify it)
1579     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1580     wxStrcpy(szPath, pszPath);
1581
1582     wxString strFile;
1583     wxChar *pc, *save_ptr;
1584     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1585           pc != NULL;
1586           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1587     {
1588         // search for the file in this directory
1589         strFile = pc;
1590         if ( !wxEndsWithPathSeparator(pc) )
1591             strFile += wxFILE_SEP_PATH;
1592         strFile += pszFile;
1593
1594         if ( wxFileExists(strFile) ) {
1595             *pStr = strFile;
1596             break;
1597         }
1598     }
1599
1600     // suppress warning about unused variable save_ptr when wxStrtok() is a
1601     // macro which throws away its third argument
1602     save_ptr = pc;
1603
1604     delete [] szPath;
1605
1606     return pc != NULL;  // if true => we breaked from the loop
1607 }
1608
1609 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1610                              wxString *pstrPath,
1611                              wxString *pstrName,
1612                              wxString *pstrExt)
1613 {
1614     // it can be empty, but it shouldn't be NULL
1615     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1616
1617     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1618 }
1619
1620 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1621 {
1622 #if defined(__WXPALMOS__)
1623     return 0;
1624 #elif defined(__WXWINCE__)
1625     FILETIME ftLastWrite;
1626     AutoHANDLE hFile(::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
1627                                     NULL, 0, FILE_ATTRIBUTE_NORMAL, 0));
1628
1629     if ( !hFile.IsOk() )
1630         return 0;
1631
1632     if ( !::GetFileTime(hFile, NULL, NULL, &ftLastWrite) )
1633         return 0;
1634
1635     // sure we want to translate to local time here?
1636     FILETIME ftLocal;
1637     if ( !::FileTimeToLocalFileTime(&ftLastWrite, &ftLocal) )
1638     {
1639         wxLogLastError(_T("FileTimeToLocalFileTime"));
1640     }
1641
1642     // FILETIME is a counted in 100-ns since 1601-01-01, convert it to
1643     // number of seconds since 1970-01-01
1644     ULARGE_INTEGER uli;
1645     uli.LowPart = ftLocal.dwLowDateTime;
1646     uli.HighPart = ftLocal.dwHighDateTime;
1647
1648     ULONGLONG ull = uli.QuadPart;
1649     ull /= wxULL(10000000);     // number of 100ns intervals in 1s
1650     ull -= wxULL(11644473600);  // 1970-01-01 - 1601-01-01 in seconds
1651
1652     return wx_static_cast(time_t, ull);
1653 #else
1654     wxStructStat buf;
1655     if ( wxStat( filename, &buf) != 0 )
1656         return 0;
1657
1658     return buf.st_mtime;
1659 #endif
1660 }
1661
1662
1663 // Parses the filterStr, returning the number of filters.
1664 // Returns 0 if none or if there's a problem.
1665 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1666
1667 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr,
1668                                            wxArrayString& descriptions,
1669                                            wxArrayString& filters)
1670 {
1671     descriptions.Clear();
1672     filters.Clear();
1673
1674     wxString str(filterStr);
1675
1676     wxString description, filter;
1677     int pos = 0;
1678     while( pos != wxNOT_FOUND )
1679     {
1680         pos = str.Find(wxT('|'));
1681         if ( pos == wxNOT_FOUND )
1682         {
1683             // if there are no '|'s at all in the string just take the entire
1684             // string as filter and make description empty for later autocompletion
1685             if ( filters.IsEmpty() )
1686             {
1687                 descriptions.Add(wxEmptyString);
1688                 filters.Add(filterStr);
1689             }
1690             else
1691             {
1692                 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1693             }
1694
1695             break;
1696         }
1697
1698         description = str.Left(pos);
1699         str = str.Mid(pos + 1);
1700         pos = str.Find(wxT('|'));
1701         if ( pos == wxNOT_FOUND )
1702         {
1703             filter = str;
1704         }
1705         else
1706         {
1707             filter = str.Left(pos);
1708             str = str.Mid(pos + 1);
1709         }
1710
1711         descriptions.Add(description);
1712         filters.Add(filter);
1713     }
1714
1715 #if defined(__WXMOTIF__)
1716     // split it so there is one wildcard per entry
1717     for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1718     {
1719         pos = filters[i].Find(wxT(';'));
1720         if (pos != wxNOT_FOUND)
1721         {
1722             // first split only filters
1723             descriptions.Insert(descriptions[i],i+1);
1724             filters.Insert(filters[i].Mid(pos+1),i+1);
1725             filters[i]=filters[i].Left(pos);
1726
1727             // autoreplace new filter in description with pattern:
1728             //     C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1729             // cause split into:
1730             //     C/C++ Files(*.cpp)|*.cpp
1731             //     C/C++ Files(*.c;*.h)|*.c;*.h
1732             // and next iteration cause another split into:
1733             //     C/C++ Files(*.cpp)|*.cpp
1734             //     C/C++ Files(*.c)|*.c
1735             //     C/C++ Files(*.h)|*.h
1736             for ( size_t k=i;k<i+2;k++ )
1737             {
1738                 pos = descriptions[k].Find(filters[k]);
1739                 if (pos != wxNOT_FOUND)
1740                 {
1741                     wxString before = descriptions[k].Left(pos);
1742                     wxString after = descriptions[k].Mid(pos+filters[k].Len());
1743                     pos = before.Find(_T('('),true);
1744                     if (pos>before.Find(_T(')'),true))
1745                     {
1746                         before = before.Left(pos+1);
1747                         before << filters[k];
1748                         pos = after.Find(_T(')'));
1749                         int pos1 = after.Find(_T('('));
1750                         if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1751                         {
1752                             before << after.Mid(pos);
1753                             descriptions[k] = before;
1754                         }
1755                     }
1756                 }
1757             }
1758         }
1759     }
1760 #endif
1761
1762     // autocompletion
1763     for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1764     {
1765         if ( descriptions[j].empty() && !filters[j].empty() )
1766         {
1767             descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1768         }
1769     }
1770
1771     return filters.GetCount();
1772 }
1773
1774
1775 //------------------------------------------------------------------------
1776 // wild character routines
1777 //------------------------------------------------------------------------
1778
1779 bool wxIsWild( const wxString& pattern )
1780 {
1781     wxString tmp = pattern;
1782     wxChar *pat = WXSTRINGCAST(tmp);
1783     while (*pat)
1784     {
1785         switch (*pat++)
1786         {
1787         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1788             return true;
1789         case wxT('\\'):
1790             if (!*pat++)
1791                 return false;
1792         }
1793     }
1794     return false;
1795 }
1796
1797 /*
1798 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1799 *
1800 * The match procedure is public domain code (from ircII's reg.c)
1801 */
1802
1803 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1804 {
1805     if (text.empty())
1806     {
1807         /* Match if both are empty. */
1808         return pat.empty();
1809     }
1810
1811     const wxChar *m = pat.c_str(),
1812     *n = text.c_str(),
1813     *ma = NULL,
1814     *na = NULL,
1815     *mp = NULL,
1816     *np = NULL;
1817     int just = 0,
1818     pcount = 0,
1819     acount = 0,
1820     count = 0;
1821
1822     if (dot_special && (*n == wxT('.')))
1823     {
1824         /* Never match so that hidden Unix files
1825          * are never found. */
1826         return false;
1827     }
1828
1829     for (;;)
1830     {
1831         if (*m == wxT('*'))
1832         {
1833             ma = ++m;
1834             na = n;
1835             just = 1;
1836             mp = NULL;
1837             acount = count;
1838         }
1839         else if (*m == wxT('?'))
1840         {
1841             m++;
1842             if (!*n++)
1843                 return false;
1844         }
1845         else
1846         {
1847             if (*m == wxT('\\'))
1848             {
1849                 m++;
1850                 /* Quoting "nothing" is a bad thing */
1851                 if (!*m)
1852                     return false;
1853             }
1854             if (!*m)
1855             {
1856                 /*
1857                 * If we are out of both strings or we just
1858                 * saw a wildcard, then we can say we have a
1859                 * match
1860                 */
1861                 if (!*n)
1862                     return true;
1863                 if (just)
1864                     return true;
1865                 just = 0;
1866                 goto not_matched;
1867             }
1868             /*
1869             * We could check for *n == NULL at this point, but
1870             * since it's more common to have a character there,
1871             * check to see if they match first (m and n) and
1872             * then if they don't match, THEN we can check for
1873             * the NULL of n
1874             */
1875             just = 0;
1876             if (*m == *n)
1877             {
1878                 m++;
1879                 if (*n == wxT(' '))
1880                     mp = NULL;
1881                 count++;
1882                 n++;
1883             }
1884             else
1885             {
1886
1887                 not_matched:
1888
1889                 /*
1890                 * If there are no more characters in the
1891                 * string, but we still need to find another
1892                 * character (*m != NULL), then it will be
1893                 * impossible to match it
1894                 */
1895                 if (!*n)
1896                     return false;
1897                 if (mp)
1898                 {
1899                     m = mp;
1900                     if (*np == wxT(' '))
1901                     {
1902                         mp = NULL;
1903                         goto check_percent;
1904                     }
1905                     n = ++np;
1906                     count = pcount;
1907                 }
1908                 else
1909                 check_percent:
1910
1911                 if (ma)
1912                 {
1913                     m = ma;
1914                     n = ++na;
1915                     count = acount;
1916                 }
1917                 else
1918                     return false;
1919             }
1920         }
1921     }
1922 }
1923
1924 // Return the type of an open file
1925 //
1926 // Some file types on some platforms seem seekable but in fact are not.
1927 // The main use of this function is to allow such cases to be detected
1928 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1929 //
1930 // This is important for the archive streams, which benefit greatly from
1931 // being able to seek on a stream, but which will produce corrupt archives
1932 // if they unknowingly seek on a non-seekable stream.
1933 //
1934 // wxFILE_KIND_DISK is a good catch all return value, since other values
1935 // disable features of the archive streams. Some other value must be returned
1936 // for a file type that appears seekable but isn't.
1937 //
1938 // Known examples:
1939 //   *  Pipes on Windows
1940 //   *  Files on VMS with a record format other than StreamLF
1941 //
1942 wxFileKind wxGetFileKind(int fd)
1943 {
1944 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1945     switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1946     {
1947         case FILE_TYPE_CHAR:
1948             return wxFILE_KIND_TERMINAL;
1949         case FILE_TYPE_DISK:
1950             return wxFILE_KIND_DISK;
1951         case FILE_TYPE_PIPE:
1952             return wxFILE_KIND_PIPE;
1953     }
1954
1955     return wxFILE_KIND_UNKNOWN;
1956
1957 #elif defined(__UNIX__)
1958     if (isatty(fd))
1959         return wxFILE_KIND_TERMINAL;
1960
1961     struct stat st;
1962     fstat(fd, &st);
1963
1964     if (S_ISFIFO(st.st_mode))
1965         return wxFILE_KIND_PIPE;
1966     if (!S_ISREG(st.st_mode))
1967         return wxFILE_KIND_UNKNOWN;
1968
1969     #if defined(__VMS__)
1970         if (st.st_fab_rfm != FAB$C_STMLF)
1971             return wxFILE_KIND_UNKNOWN;
1972     #endif
1973
1974     return wxFILE_KIND_DISK;
1975
1976 #else
1977     #define wxFILEKIND_STUB
1978     (void)fd;
1979     return wxFILE_KIND_DISK;
1980 #endif
1981 }
1982
1983 wxFileKind wxGetFileKind(FILE *fp)
1984 {
1985     // Note: The watcom rtl dll doesn't have fileno (the static lib does).
1986     //       Should be fixed in version 1.4.
1987 #if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4)
1988     (void)fp;
1989     return wxFILE_KIND_DISK;
1990 #else
1991     return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN;
1992 #endif
1993 }
1994
1995 #ifdef __VISUALC__
1996     #pragma warning(default:4706)   // assignment within conditional expression
1997 #endif // VC++