src/common/filefn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "filefn.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26 #include "wx/defs.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 #include "wx/utils.h"
  33 #include "wx/intl.h"
  34 #include "wx/file.h" // This does include filefn.h
  35 #include "wx/filename.h"
  36 #include "wx/dir.h"
  37
  38 // there are just too many of those...
  39 #ifdef __VISUALC__
  40     #pragma warning(disable:4706)   // assignment within conditional expression
  41 #endif // VC++
  42
  43 #include <ctype.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <string.h>
  47 #if !defined(__WATCOMC__)
  48     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  49         #include <errno.h>
  50     #endif
  51 #endif
  52
  53 #if defined(__WXMAC__)
  54     #include  "wx/mac/private.h"  // includes mac headers
  55 #endif
  56
  57 #include "wx/log.h"
  58
  59 // No, Cygwin doesn't appear to have fnmatch.h after all.
  60 #if defined(HAVE_FNMATCH_H)
  61     #include "fnmatch.h"
  62 #endif
  63
  64 #ifdef __WINDOWS__
  65     #include "wx/msw/private.h"
  66     #include "wx/msw/mslu.h"
  67
  68     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
  69     //
  70     // note that it must be included after <windows.h>
  71     #ifdef __GNUWIN32__
  72         #ifdef __CYGWIN__
  73             #include <sys/cygwin.h>
  74         #endif
  75     #endif // __GNUWIN32__
  76
  77     // io.h is needed for _get_osfhandle()
  78     // Already included by filefn.h for many Windows compilers
  79     #if defined __MWERKS__ || defined __CYGWIN__
  80         #include <io.h>
  81     #endif
  82     #if defined __WINE__
  83     extern "C" { long _get_osfhandle(int); }
  84     #endif
  85 #endif // __WINDOWS__
  86
  87 #if defined(__VMS__)
  88     #include <fab.h>
  89 #endif
  90
  91 // TODO: Borland probably has _wgetcwd as well?
  92 #ifdef _MSC_VER
  93     #define HAVE_WGETCWD
  94 #endif
  95
  96 // ----------------------------------------------------------------------------
  97 // constants
  98 // ----------------------------------------------------------------------------
  99
 100 #ifndef _MAXPATHLEN
 101     #define _MAXPATHLEN 1024
 102 #endif
 103
 104 #ifdef __WXMAC__
 105 #    include "MoreFilesX.h"
 106 #endif
 107
 108 // ----------------------------------------------------------------------------
 109 // private globals
 110 // ----------------------------------------------------------------------------
 111
 112 // MT-FIXME: get rid of this horror and all code using it
 113 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 114
 115 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 116 //
 117 // VisualAge C++ V4.0 cannot have any external linkage const decs
 118 // in headers included by more than one primary source
 119 //
 120 const int wxInvalidOffset = -1;
 121 #endif
 122
 123 // ----------------------------------------------------------------------------
 124 // macros
 125 // ----------------------------------------------------------------------------
 126
 127 // we need to translate Mac filenames before passing them to OS functions
 128 #define OS_FILENAME(s) (s.fn_str())
 129
 130 // ============================================================================
 131 // implementation
 132 // ============================================================================
 133
 134 #ifdef wxNEED_WX_UNISTD_H
 135
 136 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 137 {
 138     return stat( wxConvFile.cWX2MB( file_name ), buf );
 139 }
 140
 141 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 142 {
 143     return access( wxConvFile.cWX2MB( pathname ), mode );
 144 }
 145
 146 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 147 {
 148     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 149 }
 150
 151 #endif
 152    // wxNEED_WX_UNISTD_H
 153
 154 // ----------------------------------------------------------------------------
 155 // wxPathList
 156 // ----------------------------------------------------------------------------
 157
 158 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 159
 160 static inline wxChar* MYcopystring(const wxString& s)
 161 {
 162     wxChar* copy = new wxChar[s.length() + 1];
 163     return wxStrcpy(copy, s.c_str());
 164 }
 165
 166 static inline wxChar* MYcopystring(const wxChar* s)
 167 {
 168     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 169     return wxStrcpy(copy, s);
 170 }
 171
 172 void wxPathList::Add (const wxString& path)
 173 {
 174     wxStringList::Add (WXSTRINGCAST path);
 175 }
 176
 177 // Add paths e.g. from the PATH environment variable
 178 void wxPathList::AddEnvList (const wxString& envVariable)
 179 {
 180     // No environment variables on WinCE
 181 #ifndef __WXWINCE__
 182     static const wxChar PATH_TOKS[] =
 183 #if defined(__WINDOWS__) || defined(__OS2__)
 184         /*
 185         The space has been removed from the tokenizers, otherwise a
 186         path such as "C:\Program Files" would be split into 2 paths:
 187         "C:\Program" and "Files"
 188         */
 189 //        wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 190         wxT(";"); // Don't seperate with colon in DOS (used for drive)
 191 #else
 192         wxT(" :;");
 193 #endif
 194
 195     wxString val ;
 196     if (wxGetEnv (WXSTRINGCAST envVariable, &val))
 197     {
 198         wxChar *s = MYcopystring (val);
 199         wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 200
 201         if (token)
 202         {
 203             Add(token);
 204             while (token)
 205             {
 206                 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
 207                     != NULL )
 208                 {
 209                     Add(token);
 210                 }
 211             }
 212         }
 213
 214         // suppress warning about unused variable save_ptr when wxStrtok() is a
 215         // macro which throws away its third argument
 216         save_ptr = token;
 217
 218         delete [] s;
 219     }
 220 #else // __WXWINCE__
 221     wxUnusedVar(envVariable);
 222 #endif // !__WXWINCE__/__WXWINCE__
 223 }
 224
 225 // Given a full filename (with path), ensure that that file can
 226 // be accessed again USING FILENAME ONLY by adding the path
 227 // to the list if not already there.
 228 void wxPathList::EnsureFileAccessible (const wxString& path)
 229 {
 230     wxString path_only(wxPathOnly(path));
 231     if ( !path_only.empty() )
 232     {
 233         if ( !Member(path_only) )
 234             Add(path_only);
 235     }
 236 }
 237
 238 bool wxPathList::Member (const wxString& path)
 239 {
 240   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 241   {
 242       wxString path2( node->GetData() );
 243       if (
 244 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined(__WXMAC__)
 245       // Case INDEPENDENT
 246           path.CompareTo (path2, wxString::ignoreCase) == 0
 247 #else
 248       // Case sensitive File System
 249           path.CompareTo (path2) == 0
 250 #endif
 251         )
 252         return true;
 253   }
 254   return false;
 255 }
 256
 257 wxString wxPathList::FindValidPath (const wxString& file)
 258 {
 259   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 260     return wxString(wxFileFunctionsBuffer);
 261
 262   wxChar buf[_MAXPATHLEN];
 263   wxStrcpy(buf, wxFileFunctionsBuffer);
 264
 265   wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 266
 267   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 268     {
 269       const wxChar *path = node->GetData();
 270       wxStrcpy (wxFileFunctionsBuffer, path);
 271       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 272       if (ch != wxT('\\') && ch != wxT('/'))
 273         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 274       wxStrcat (wxFileFunctionsBuffer, filename);
 275 #ifdef __WINDOWS__
 276       wxUnix2DosFilename (wxFileFunctionsBuffer);
 277 #endif
 278       if (wxFileExists (wxFileFunctionsBuffer))
 279       {
 280         return wxString(wxFileFunctionsBuffer);        // Found!
 281       }
 282     }                                // for()
 283
 284   return wxEmptyString;                    // Not found
 285 }
 286
 287 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 288 {
 289     wxString f = FindValidPath(file);
 290     if ( f.empty() || wxIsAbsolutePath(f) )
 291         return f;
 292
 293     wxString buf;
 294     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 295
 296     if ( !wxEndsWithPathSeparator(buf) )
 297     {
 298         buf += wxFILE_SEP_PATH;
 299     }
 300     buf += f;
 301
 302     return buf;
 303 }
 304
 305 bool
 306 wxFileExists (const wxString& filename)
 307 {
 308 #if defined(__WXPALMOS__)
 309     return false;
 310 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
 311     // we must use GetFileAttributes() instead of the ANSI C functions because
 312     // it can cope with network (UNC) paths unlike them
 313     DWORD ret = ::GetFileAttributes(filename);
 314
 315     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 316 #else // !__WIN32__
 317     wxStructStat st;
 318 #ifndef wxNEED_WX_UNISTD_H
 319     return wxStat( filename.fn_str() , &st) == 0 && (st.st_mode & S_IFREG);
 320 #else
 321     return wxStat( filename , &st) == 0 && (st.st_mode & S_IFREG);
 322 #endif
 323 #endif // __WIN32__/!__WIN32__
 324 }
 325
 326 bool
 327 wxIsAbsolutePath (const wxString& filename)
 328 {
 329     if (!filename.empty())
 330     {
 331 #if defined(__WXMAC__) && !defined(__DARWIN__)
 332         // Classic or Carbon CodeWarrior like
 333         // Carbon with Apple DevTools is Unix like
 334
 335         // This seems wrong to me, but there is no fix. since
 336         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 337         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 338         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 339             return true ;
 340 #else
 341         // Unix like or Windows
 342         if (filename[0] == wxT('/'))
 343             return true;
 344 #endif
 345 #ifdef __VMS__
 346         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 347             return true;
 348 #endif
 349 #if defined(__WINDOWS__) || defined(__OS2__)
 350         // MSDOS like
 351         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 352             return true;
 353 #endif
 354     }
 355     return false ;
 356 }
 357
 358 /*
 359  * Strip off any extension (dot something) from end of file,
 360  * IF one exists. Inserts zero into buffer.
 361  *
 362  */
 363
 364 void wxStripExtension(wxChar *buffer)
 365 {
 366   int len = wxStrlen(buffer);
 367   int i = len-1;
 368   while (i > 0)
 369   {
 370     if (buffer[i] == wxT('.'))
 371     {
 372       buffer[i] = 0;
 373       break;
 374     }
 375     i --;
 376   }
 377 }
 378
 379 void wxStripExtension(wxString& buffer)
 380 {
 381     //RN:  Be careful about the handling the case where
 382     //buffer.Length() == 0
 383     for(size_t i = buffer.Length() - 1; i != wxString::npos; --i)
 384     {
 385         if (buffer.GetChar(i) == wxT('.'))
 386         {
 387           buffer = buffer.Left(i);
 388           break;
 389         }
 390     }
 391 }
 392
 393 // Destructive removal of /./ and /../ stuff
 394 wxChar *wxRealPath (wxChar *path)
 395 {
 396 #ifdef __WXMSW__
 397   static const wxChar SEP = wxT('\\');
 398   wxUnix2DosFilename(path);
 399 #else
 400   static const wxChar SEP = wxT('/');
 401 #endif
 402   if (path[0] && path[1]) {
 403     /* MATTHEW: special case "/./x" */
 404     wxChar *p;
 405     if (path[2] == SEP && path[1] == wxT('.'))
 406       p = &path[0];
 407     else
 408       p = &path[2];
 409     for (; *p; p++)
 410       {
 411         if (*p == SEP)
 412           {
 413             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 414               {
 415                 wxChar *q;
 416                 for (q = p - 1; q >= path && *q != SEP; q--)
 417                 {
 418                     // Empty
 419                 }
 420
 421                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 422                     && (q - 1 <= path || q[-1] != SEP))
 423                   {
 424                     wxStrcpy (q, p + 3);
 425                     if (path[0] == wxT('\0'))
 426                       {
 427                         path[0] = SEP;
 428                         path[1] = wxT('\0');
 429                       }
 430 #if defined(__WXMSW__) || defined(__OS2__)
 431                     /* Check that path[2] is NULL! */
 432                     else if (path[1] == wxT(':') && !path[2])
 433                       {
 434                         path[2] = SEP;
 435                         path[3] = wxT('\0');
 436                       }
 437 #endif
 438                     p = q - 1;
 439                   }
 440               }
 441             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 442               wxStrcpy (p, p + 2);
 443           }
 444       }
 445   }
 446   return path;
 447 }
 448
 449 // Must be destroyed
 450 wxChar *wxCopyAbsolutePath(const wxString& filename)
 451 {
 452   if (filename.empty())
 453     return (wxChar *) NULL;
 454
 455   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 456     wxChar  buf[_MAXPATHLEN];
 457     buf[0] = wxT('\0');
 458     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 459     wxChar ch = buf[wxStrlen(buf) - 1];
 460 #ifdef __WXMSW__
 461     if (ch != wxT('\\') && ch != wxT('/'))
 462         wxStrcat(buf, wxT("\\"));
 463 #else
 464     if (ch != wxT('/'))
 465         wxStrcat(buf, wxT("/"));
 466 #endif
 467     wxStrcat(buf, wxFileFunctionsBuffer);
 468     return MYcopystring( wxRealPath(buf) );
 469   }
 470   return MYcopystring( wxFileFunctionsBuffer );
 471 }
 472
 473 /*-
 474  Handles:
 475    ~/ => home dir
 476    ~user/ => user's home dir
 477    If the environment variable a = "foo" and b = "bar" then:
 478    Unix:
 479         $a        =>        foo
 480         $a$b        =>        foobar
 481         $a.c        =>        foo.c
 482         xxx$a        =>        xxxfoo
 483         ${a}!        =>        foo!
 484         $(b)!        =>        bar!
 485         \$a        =>        \$a
 486    MSDOS:
 487         $a        ==>        $a
 488         $(a)        ==>        foo
 489         $(a)$b        ==>        foo$b
 490         $(a)$(b)==>        foobar
 491         test.$$        ==>        test.$$
 492  */
 493
 494 /* input name in name, pathname output to buf. */
 495
 496 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 497 {
 498     register wxChar *d, *s, *nm;
 499     wxChar          lnm[_MAXPATHLEN];
 500     int             q;
 501
 502     // Some compilers don't like this line.
 503 //    const wxChar    trimchars[] = wxT("\n \t");
 504
 505     wxChar      trimchars[4];
 506     trimchars[0] = wxT('\n');
 507     trimchars[1] = wxT(' ');
 508     trimchars[2] = wxT('\t');
 509     trimchars[3] = 0;
 510
 511 #ifdef __WXMSW__
 512     const wxChar     SEP = wxT('\\');
 513 #else
 514     const wxChar     SEP = wxT('/');
 515 #endif
 516     buf[0] = wxT('\0');
 517     if (name == NULL || *name == wxT('\0'))
 518         return buf;
 519     nm = MYcopystring(name); // Make a scratch copy
 520     wxChar *nm_tmp = nm;
 521
 522     /* Skip leading whitespace and cr */
 523     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 524         nm++;
 525     /* And strip off trailing whitespace and cr */
 526     s = nm + (q = wxStrlen(nm)) - 1;
 527     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 528         *s = wxT('\0');
 529
 530     s = nm;
 531     d = lnm;
 532 #ifdef __WXMSW__
 533     q = FALSE;
 534 #else
 535     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 536 #endif
 537
 538     /* Expand inline environment variables */
 539 #ifdef __VISAGECPP__
 540     while (*d)
 541     {
 542       *d++ = *s;
 543       if(*s == wxT('\\'))
 544       {
 545         *(d - 1) = *++s;
 546         if (*d)
 547         {
 548           s++;
 549           continue;
 550         }
 551         else
 552            break;
 553       }
 554       else
 555 #else
 556     while ((*d++ = *s) != 0) {
 557 #  ifndef __WXMSW__
 558         if (*s == wxT('\\')) {
 559             if ((*(d - 1) = *++s)) {
 560                 s++;
 561                 continue;
 562             } else
 563                 break;
 564         } else
 565 #  endif
 566 #endif
 567             // No env variables on WinCE
 568 #ifndef __WXWINCE__
 569 #ifdef __WXMSW__
 570         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 571 #else
 572         if (*s++ == wxT('$'))
 573 #endif
 574         {
 575             register wxChar  *start = d;
 576             register int     braces = (*s == wxT('{') || *s == wxT('('));
 577             register wxChar  *value;
 578             while ((*d++ = *s) != 0)
 579                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 580                     break;
 581                 else
 582                     s++;
 583             *--d = 0;
 584             value = wxGetenv(braces ? start + 1 : start);
 585             if (value) {
 586                 for ((d = start - 1); (*d++ = *value++) != 0;)
 587                 {
 588                     // Empty
 589                 }
 590
 591                 d--;
 592                 if (braces && *s)
 593                     s++;
 594             }
 595         }
 596 #endif
 597         // __WXWINCE__
 598     }
 599
 600     /* Expand ~ and ~user */
 601     nm = lnm;
 602     if (nm[0] == wxT('~') && !q)
 603     {
 604         /* prefix ~ */
 605         if (nm[1] == SEP || nm[1] == 0)
 606         {        /* ~/filename */
 607         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 608             if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
 609                 if (*++nm)
 610                     nm++;
 611             }
 612         } else
 613         {                /* ~user/filename */
 614             register wxChar  *nnm;
 615             register wxChar  *home;
 616             for (s = nm; *s && *s != SEP; s++)
 617             {
 618                 // Empty
 619             }
 620             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 621             was_sep = (*s == SEP);
 622             nnm = *s ? s + 1 : s;
 623             *s = 0;
 624         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 625             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 626                if (was_sep) /* replace only if it was there: */
 627                    *s = SEP;
 628                 s = NULL;
 629             } else {
 630                 nm = nnm;
 631                 s = home;
 632             }
 633         }
 634     }
 635
 636     d = buf;
 637     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 638         /* Copy home dir */
 639         while (wxT('\0') != (*d++ = *s++))
 640           /* loop */;
 641         // Handle root home
 642         if (d - 1 > buf && *(d - 2) != SEP)
 643           *(d - 1) = SEP;
 644     }
 645     s = nm;
 646     while ((*d++ = *s++) != 0)
 647     {
 648         // Empty
 649     }
 650     delete[] nm_tmp; // clean up alloc
 651     /* Now clean up the buffer */
 652     return wxRealPath(buf);
 653 }
 654
 655 /* Contract Paths to be build upon an environment variable
 656    component:
 657
 658    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 659
 660    The call wxExpandPath can convert these back!
 661  */
 662 wxChar *
 663 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 664 {
 665   static wxChar dest[_MAXPATHLEN];
 666
 667   if (filename.empty())
 668     return (wxChar *) NULL;
 669
 670   wxStrcpy (dest, WXSTRINGCAST filename);
 671 #ifdef __WXMSW__
 672   wxUnix2DosFilename(dest);
 673 #endif
 674
 675   // Handle environment
 676   const wxChar *val;
 677 #ifndef __WXWINCE__
 678   wxChar *tcp;
 679   if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 680      (tcp = wxStrstr (dest, val)) != NULL)
 681     {
 682         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 683         *tcp++ = wxT('$');
 684         *tcp++ = wxT('{');
 685         wxStrcpy (tcp, WXSTRINGCAST envname);
 686         wxStrcat (tcp, wxT("}"));
 687         wxStrcat (tcp, wxFileFunctionsBuffer);
 688     }
 689 #else
 690   wxUnusedVar(envname);
 691 #endif
 692
 693   // Handle User's home (ignore root homes!)
 694   val = wxGetUserHome (user);
 695   if (!val)
 696     return dest;
 697
 698   const size_t len = wxStrlen(val);
 699   if (len <= 2)
 700     return dest;
 701
 702   if (wxStrncmp(dest, val, len) == 0)
 703   {
 704     wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 705     if (!user.empty())
 706            wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 707     wxStrcat(wxFileFunctionsBuffer, dest + len);
 708     wxStrcpy (dest, wxFileFunctionsBuffer);
 709   }
 710
 711   return dest;
 712 }
 713
 714 // Return just the filename, not the path (basename)
 715 wxChar *wxFileNameFromPath (wxChar *path)
 716 {
 717     wxString p = path;
 718     wxString n = wxFileNameFromPath(p);
 719
 720     return path + p.length() - n.length();
 721 }
 722
 723 wxString wxFileNameFromPath (const wxString& path)
 724 {
 725     wxString name, ext;
 726     wxFileName::SplitPath(path, NULL, &name, &ext);
 727
 728     wxString fullname = name;
 729     if ( !ext.empty() )
 730     {
 731         fullname << wxFILE_SEP_EXT << ext;
 732     }
 733
 734     return fullname;
 735 }
 736
 737 // Return just the directory, or NULL if no directory
 738 wxChar *
 739 wxPathOnly (wxChar *path)
 740 {
 741     if (path && *path)
 742     {
 743         static wxChar buf[_MAXPATHLEN];
 744
 745         // Local copy
 746         wxStrcpy (buf, path);
 747
 748         int l = wxStrlen(path);
 749         int i = l - 1;
 750
 751         // Search backward for a backward or forward slash
 752         while (i > -1)
 753         {
 754 #if defined(__WXMAC__) && !defined(__DARWIN__)
 755             // Classic or Carbon CodeWarrior like
 756             // Carbon with Apple DevTools is Unix like
 757             if (path[i] == wxT(':') )
 758             {
 759                 buf[i] = 0;
 760                 return buf;
 761             }
 762 #else
 763             // Unix like or Windows
 764             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 765             {
 766                 buf[i] = 0;
 767                 return buf;
 768             }
 769 #endif
 770 #ifdef __VMS__
 771             if (path[i] == wxT(']'))
 772             {
 773                 buf[i+1] = 0;
 774                 return buf;
 775             }
 776 #endif
 777             i --;
 778         }
 779
 780 #if defined(__WXMSW__) || defined(__OS2__)
 781         // Try Drive specifier
 782         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 783         {
 784             // A:junk --> A:. (since A:.\junk Not A:\junk)
 785             buf[2] = wxT('.');
 786             buf[3] = wxT('\0');
 787             return buf;
 788         }
 789 #endif
 790     }
 791     return (wxChar *) NULL;
 792 }
 793
 794 // Return just the directory, or NULL if no directory
 795 wxString wxPathOnly (const wxString& path)
 796 {
 797     if (!path.empty())
 798     {
 799         wxChar buf[_MAXPATHLEN];
 800
 801         // Local copy
 802         wxStrcpy (buf, WXSTRINGCAST path);
 803
 804         int l = path.Length();
 805         int i = l - 1;
 806
 807         // Search backward for a backward or forward slash
 808         while (i > -1)
 809         {
 810 #if defined(__WXMAC__) && !defined(__DARWIN__)
 811             // Classic or Carbon CodeWarrior like
 812             // Carbon with Apple DevTools is Unix like
 813             if (path[i] == wxT(':') )
 814             {
 815                 buf[i] = 0;
 816                 return wxString(buf);
 817             }
 818 #else
 819             // Unix like or Windows
 820             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 821             {
 822                 // Don't return an empty string
 823                 if (i == 0)
 824                     i ++;
 825                 buf[i] = 0;
 826                 return wxString(buf);
 827             }
 828 #endif
 829 #ifdef __VMS__
 830             if (path[i] == wxT(']'))
 831             {
 832                 buf[i+1] = 0;
 833                 return wxString(buf);
 834             }
 835 #endif
 836             i --;
 837         }
 838
 839 #if defined(__WXMSW__) || defined(__OS2__)
 840         // Try Drive specifier
 841         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 842         {
 843             // A:junk --> A:. (since A:.\junk Not A:\junk)
 844             buf[2] = wxT('.');
 845             buf[3] = wxT('\0');
 846             return wxString(buf);
 847         }
 848 #endif
 849     }
 850     return wxEmptyString;
 851 }
 852
 853 // Utility for converting delimiters in DOS filenames to UNIX style
 854 // and back again - or we get nasty problems with delimiters.
 855 // Also, convert to lower case, since case is significant in UNIX.
 856
 857 #if defined(__WXMAC__)
 858
 859 #if TARGET_API_MAC_OSX
 860 #define kDefaultPathStyle kCFURLPOSIXPathStyle
 861 #else
 862 #define kDefaultPathStyle kCFURLHFSPathStyle
 863 #endif
 864
 865 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
 866 {
 867     CFURLRef fullURLRef;
 868     fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
 869     if ( additionalPathComponent )
 870     {
 871         CFURLRef parentURLRef = fullURLRef ;
 872         fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
 873             additionalPathComponent,false);
 874         CFRelease( parentURLRef ) ;
 875     }
 876     CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
 877     CFRelease( fullURLRef ) ;
 878     return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
 879 }
 880
 881 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
 882 {
 883     OSStatus err = noErr ;
 884     CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
 885     if ( NULL != url )
 886     {
 887         if ( CFURLGetFSRef(url, fsRef) == false )
 888             err = fnfErr ;
 889         CFRelease( url ) ;
 890     }
 891     else
 892     {
 893         err = fnfErr ;
 894     }
 895     return err ;
 896 }
 897
 898 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
 899 {
 900     CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
 901                                                       uniname->unicode,
 902                                                       uniname->length );
 903     return wxMacCFStringHolder(cfname).AsString() ;
 904 }
 905
 906 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 907 {
 908     FSRef fsRef ;
 909     if ( FSpMakeFSRef( spec , &fsRef) == noErr )
 910     {
 911         return wxMacFSRefToPath( &fsRef ) ;
 912     }
 913     return wxEmptyString ;
 914 }
 915
 916 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
 917 {
 918     OSStatus err = noErr ;
 919     FSRef fsRef ;
 920     wxMacPathToFSRef( path , &fsRef ) ;
 921     err = FSRefMakeFSSpec( &fsRef , spec ) ;
 922 }
 923
 924 #endif // __WXMAC__
 925
 926 void
 927 wxDos2UnixFilename (wxChar *s)
 928 {
 929   if (s)
 930     while (*s)
 931       {
 932         if (*s == _T('\\'))
 933           *s = _T('/');
 934 #ifdef __WXMSW__
 935         else
 936           *s = (wxChar)wxTolower (*s);        // Case INDEPENDENT
 937 #endif
 938         s++;
 939       }
 940 }
 941
 942 void
 943 #if defined(__WXMSW__) || defined(__OS2__)
 944 wxUnix2DosFilename (wxChar *s)
 945 #else
 946 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 947 #endif
 948 {
 949 // Yes, I really mean this to happen under DOS only! JACS
 950 #if defined(__WXMSW__) || defined(__OS2__)
 951   if (s)
 952     while (*s)
 953       {
 954         if (*s == wxT('/'))
 955           *s = wxT('\\');
 956         s++;
 957       }
 958 #endif
 959 }
 960
 961 // Concatenate two files to form third
 962 bool
 963 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 964 {
 965   wxString outfile;
 966   if ( !wxGetTempFileName( wxT("cat"), outfile) )
 967       return false;
 968
 969   FILE *fp1 wxDUMMY_INITIALIZE(NULL);
 970   FILE *fp2 = NULL;
 971   FILE *fp3 = NULL;
 972   // Open the inputs and outputs
 973   if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
 974       (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
 975       (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
 976     {
 977       if (fp1)
 978         fclose (fp1);
 979       if (fp2)
 980         fclose (fp2);
 981       if (fp3)
 982         fclose (fp3);
 983       return false;
 984     }
 985
 986   int ch;
 987   while ((ch = getc (fp1)) != EOF)
 988     (void) putc (ch, fp3);
 989   fclose (fp1);
 990
 991   while ((ch = getc (fp2)) != EOF)
 992     (void) putc (ch, fp3);
 993   fclose (fp2);
 994
 995   fclose (fp3);
 996   bool result = wxRenameFile(outfile, file3);
 997   return result;
 998 }
 999
1000 // Copy files
1001 bool
1002 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1003 {
1004 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1005     // CopyFile() copies file attributes and modification time too, so use it
1006     // instead of our code if available
1007     //
1008     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1009     if ( !::CopyFile(file1, file2, !overwrite) )
1010     {
1011         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1012                       file1.c_str(), file2.c_str());
1013
1014         return false;
1015     }
1016 #elif defined(__OS2__)
1017     if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1018         return false;
1019 #elif defined(__PALMOS__)
1020     // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1021     return false;
1022 #elif wxUSE_FILE // !Win32
1023
1024     wxStructStat fbuf;
1025     // get permissions of file1
1026     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1027     {
1028         // the file probably doesn't exist or we haven't the rights to read
1029         // from it anyhow
1030         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1031                       file1.c_str());
1032         return false;
1033     }
1034
1035     // open file1 for reading
1036     wxFile fileIn(file1, wxFile::read);
1037     if ( !fileIn.IsOpened() )
1038         return false;
1039
1040     // remove file2, if it exists. This is needed for creating
1041     // file2 with the correct permissions in the next step
1042     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1043     {
1044         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1045                       file2.c_str());
1046         return false;
1047     }
1048
1049     // reset the umask as we want to create the file with exactly the same
1050     // permissions as the original one
1051     wxCHANGE_UMASK(0);
1052
1053     // create file2 with the same permissions than file1 and open it for
1054     // writing
1055
1056     wxFile fileOut;
1057     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1058         return false;
1059
1060     // copy contents of file1 to file2
1061     char buf[4096];
1062     size_t count;
1063     for ( ;; )
1064     {
1065         count = fileIn.Read(buf, WXSIZEOF(buf));
1066         if ( fileIn.Error() )
1067             return false;
1068
1069         // end of file?
1070         if ( !count )
1071             break;
1072
1073         if ( fileOut.Write(buf, count) < count )
1074             return false;
1075     }
1076
1077     // we can expect fileIn to be closed successfully, but we should ensure
1078     // that fileOut was closed as some write errors (disk full) might not be
1079     // detected before doing this
1080     if ( !fileIn.Close() || !fileOut.Close() )
1081         return false;
1082
1083 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1084     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1085     // however
1086     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1087     {
1088         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1089                       file2.c_str());
1090         return false;
1091     }
1092 #endif // OS/2 || Mac
1093
1094 #else // !Win32 && ! wxUSE_FILE
1095
1096     // impossible to simulate with wxWidgets API
1097     wxUnusedVar(file1);
1098     wxUnusedVar(file2);
1099     wxUnusedVar(overwrite);
1100     return false;
1101
1102 #endif // __WXMSW__ && __WIN32__
1103
1104     return true;
1105 }
1106
1107 bool
1108 wxRenameFile (const wxString& file1, const wxString& file2)
1109 {
1110 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1111     // Normal system call
1112   if ( wxRename (file1, file2) == 0 )
1113     return true;
1114 #endif
1115
1116   // Try to copy
1117   if (wxCopyFile(file1, file2)) {
1118     wxRemoveFile(file1);
1119     return true;
1120   }
1121   // Give up
1122   return false;
1123 }
1124
1125 bool wxRemoveFile(const wxString& file)
1126 {
1127 #if defined(__VISUALC__) \
1128  || defined(__BORLANDC__) \
1129  || defined(__WATCOMC__) \
1130  || defined(__DMC__) \
1131  || defined(__GNUWIN32__) \
1132  || (defined(__MWERKS__) && defined(__MSL__))
1133     int res = wxRemove(file);
1134 #elif defined(__WXMAC__)
1135     int res = unlink(wxFNCONV(file));
1136 #elif defined(__WXPALMOS__)
1137     int res = 1;
1138     // TODO with VFSFileDelete()
1139 #else
1140     int res = unlink(OS_FILENAME(file));
1141 #endif
1142
1143     return res == 0;
1144 }
1145
1146 bool wxMkdir(const wxString& dir, int perm)
1147 {
1148 #if defined(__WXPALMOS__)
1149     return false;
1150 #elif defined(__WXMAC__) && !defined(__UNIX__)
1151     return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1152 #else // !Mac
1153     const wxChar *dirname = dir.c_str();
1154
1155     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1156     // for the GNU compiler
1157 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1158   #if defined(MSVCRT)
1159     wxUnusedVar(perm);
1160     if ( mkdir(wxFNCONV(dirname)) != 0 )
1161   #else
1162     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1163   #endif
1164 #elif defined(__OS2__)
1165     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1166 #elif defined(__DOS__)
1167   #if defined(__WATCOMC__)
1168     (void)perm;
1169     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1170   #elif defined(__DJGPP__)
1171     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1172   #else
1173     #error "Unsupported DOS compiler!"
1174   #endif
1175 #else  // !MSW, !DOS and !OS/2 VAC++
1176     wxUnusedVar(perm);
1177 #ifdef __WXWINCE__
1178     if ( !CreateDirectory(dirname, NULL) )
1179 #else
1180     if ( wxMkDir(dir.fn_str()) != 0 )
1181 #endif
1182 #endif // !MSW/MSW
1183     {
1184         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1185
1186         return false;
1187     }
1188
1189     return true;
1190 #endif // Mac/!Mac
1191 }
1192
1193 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1194 {
1195 #if defined(__VMS__)
1196     return false; //to be changed since rmdir exists in VMS7.x
1197 #elif defined(__OS2__)
1198     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1199 #elif defined(__WXWINCE__)
1200     return (CreateDirectory(dir, NULL) != 0);
1201 #elif defined(__WXPALMOS__)
1202     // TODO with VFSFileRename()
1203     return false;
1204 #else
1205     return (wxRmDir(OS_FILENAME(dir)) == 0);
1206 #endif
1207 }
1208
1209 // does the path exists? (may have or not '/' or '\\' at the end)
1210 bool wxDirExists(const wxChar *pszPathName)
1211 {
1212     wxString strPath(pszPathName);
1213
1214 #if defined(__WINDOWS__) || defined(__OS2__)
1215     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1216     // so remove all trailing backslashes from the path - but don't do this for
1217     // the pathes "d:\" (which are different from "d:") nor for just "\"
1218     while ( wxEndsWithPathSeparator(strPath) )
1219     {
1220         size_t len = strPath.length();
1221         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1222             break;
1223
1224         strPath.Truncate(len - 1);
1225     }
1226 #endif // __WINDOWS__
1227
1228 #ifdef __OS2__
1229     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1230     if (strPath.length() == 2 && strPath[1u] == _T(':'))
1231         strPath << _T('.');
1232 #endif
1233
1234 #if defined(__WXPALMOS__)
1235     return false;
1236 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1237     // stat() can't cope with network paths
1238     DWORD ret = ::GetFileAttributes(strPath);
1239
1240     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1241 #elif defined(__OS2__)
1242     return (::DosSetCurrentDir((PSZ)(WXSTRINGCAST strPath)));
1243 #else // !__WIN32__
1244
1245     wxStructStat st;
1246 #ifndef __VISAGECPP__
1247     return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1248 #else
1249     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1250     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1251 #endif
1252
1253 #endif // __WIN32__/!__WIN32__
1254 }
1255
1256 // Get a temporary filename, opening and closing the file.
1257 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1258 {
1259 #if wxUSE_FILE
1260     wxString filename = wxFileName::CreateTempFileName(prefix);
1261     if ( filename.empty() )
1262         return NULL;
1263
1264     if ( buf )
1265         wxStrcpy(buf, filename);
1266     else
1267         buf = MYcopystring(filename);
1268
1269     return buf;
1270 #else
1271     wxUnusedVar(prefix);
1272     wxUnusedVar(buf);
1273     // wxFileName::CreateTempFileName needs wxFile class enabled
1274     return NULL;
1275 #endif
1276 }
1277
1278 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1279 {
1280     buf = wxGetTempFileName(prefix);
1281
1282     return !buf.empty();
1283 }
1284
1285 // Get first file name matching given wild card.
1286
1287 static wxDir *gs_dir = NULL;
1288 static wxString gs_dirPath;
1289
1290 wxString wxFindFirstFile(const wxChar *spec, int flags)
1291 {
1292     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1293     if ( gs_dirPath.empty() )
1294         gs_dirPath = wxT(".");
1295     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1296         gs_dirPath << wxFILE_SEP_PATH;
1297
1298     if (gs_dir)
1299         delete gs_dir;
1300     gs_dir = new wxDir(gs_dirPath);
1301
1302     if ( !gs_dir->IsOpened() )
1303     {
1304         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1305         return wxEmptyString;
1306     }
1307
1308     int dirFlags;
1309     switch (flags)
1310     {
1311         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1312         case wxFILE: dirFlags = wxDIR_FILES; break;
1313         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1314     }
1315
1316     wxString result;
1317     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1318     if ( result.empty() )
1319     {
1320         wxDELETE(gs_dir);
1321         return result;
1322     }
1323
1324     return gs_dirPath + result;
1325 }
1326
1327 wxString wxFindNextFile()
1328 {
1329     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1330
1331     wxString result;
1332     gs_dir->GetNext(&result);
1333
1334     if ( result.empty() )
1335     {
1336         wxDELETE(gs_dir);
1337         return result;
1338     }
1339
1340     return gs_dirPath + result;
1341 }
1342
1343
1344 // Get current working directory.
1345 // If buf is NULL, allocates space using new, else
1346 // copies into buf.
1347 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1348 {
1349 #if defined(__WXPALMOS__)
1350     // TODO ?
1351     return NULL;
1352 #elif defined(__WXWINCE__)
1353     // TODO
1354     wxUnusedVar(buf);
1355     wxUnusedVar(sz);
1356     return NULL;
1357 #else
1358     if ( !buf )
1359     {
1360         buf = new wxChar[sz + 1];
1361     }
1362
1363     bool ok wxDUMMY_INITIALIZE(false);
1364
1365     // for the compilers which have Unicode version of _getcwd(), call it
1366     // directly, for the others call the ANSI version and do the translation
1367 #if !wxUSE_UNICODE
1368     #define cbuf buf
1369 #else // wxUSE_UNICODE
1370     bool needsANSI = true;
1371
1372     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1373         // This is not legal code as the compiler
1374         // is allowed destroy the wxCharBuffer.
1375         // wxCharBuffer c_buffer(sz);
1376         // char *cbuf = (char*)(const char*)c_buffer;
1377         char cbuf[_MAXPATHLEN];
1378     #endif
1379
1380     #ifdef HAVE_WGETCWD
1381         #if wxUSE_UNICODE_MSLU
1382             if ( wxGetOsVersion() != wxWIN95 )
1383         #else
1384             char *cbuf = NULL; // never really used because needsANSI will always be false
1385         #endif
1386             {
1387                 ok = _wgetcwd(buf, sz) != NULL;
1388                 needsANSI = false;
1389             }
1390     #endif
1391
1392     if ( needsANSI )
1393 #endif // wxUSE_UNICODE
1394     {
1395     #if defined(_MSC_VER) || defined(__MINGW32__)
1396         ok = _getcwd(cbuf, sz) != NULL;
1397     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1398         char lbuf[1024] ;
1399         if ( getcwd( lbuf , sizeof( lbuf ) ) )
1400         {
1401             wxString res( lbuf , *wxConvCurrent ) ;
1402             wxStrcpy( buf , res ) ;
1403             ok = true;
1404         }
1405         else
1406             ok = false ;
1407     #elif defined(__OS2__)
1408         APIRET rc;
1409         ULONG ulDriveNum = 0;
1410         ULONG ulDriveMap = 0;
1411         rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1412         ok = rc == 0;
1413         if (ok)
1414         {
1415             sz -= 3;
1416             rc = ::DosQueryCurrentDir( 0 // current drive
1417                                       ,cbuf + 3
1418                                       ,(PULONG)&sz
1419                                      );
1420             cbuf[0] = 'A' + (ulDriveNum - 1);
1421             cbuf[1] = ':';
1422             cbuf[2] = '\\';
1423             ok = rc == 0;
1424         }
1425     #else // !Win32/VC++ !Mac !OS2
1426         ok = getcwd(cbuf, sz) != NULL;
1427     #endif // platform
1428
1429     #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1430         // finally convert the result to Unicode if needed
1431         wxConvFile.MB2WC(buf, cbuf, sz);
1432     #endif // wxUSE_UNICODE
1433     }
1434
1435     if ( !ok )
1436     {
1437         wxLogSysError(_("Failed to get the working directory"));
1438
1439         // VZ: the old code used to return "." on error which didn't make any
1440         //     sense at all to me - empty string is a better error indicator
1441         //     (NULL might be even better but I'm afraid this could lead to
1442         //     problems with the old code assuming the return is never NULL)
1443         buf[0] = _T('\0');
1444     }
1445     else // ok, but we might need to massage the path into the right format
1446     {
1447 #ifdef __DJGPP__
1448         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1449         //     with / deliminers. We don't like that.
1450         for (wxChar *ch = buf; *ch; ch++)
1451         {
1452             if (*ch == wxT('/'))
1453                 *ch = wxT('\\');
1454         }
1455 #endif // __DJGPP__
1456
1457 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1458 //      he needs Unix as opposed to Win32 pathnames
1459 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1460         // another example of DOS/Unix mix (Cygwin)
1461         wxString pathUnix = buf;
1462         cygwin_conv_to_full_win32_path(pathUnix, buf);
1463 #endif // __CYGWIN__
1464     }
1465
1466     return buf;
1467
1468 #if !wxUSE_UNICODE
1469     #undef cbuf
1470 #endif
1471
1472 #endif
1473     // __WXWINCE__
1474 }
1475
1476 wxString wxGetCwd()
1477 {
1478     wxChar *buffer = new wxChar[_MAXPATHLEN];
1479     wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1480     wxString str( buffer );
1481     delete [] buffer;
1482
1483     return str;
1484 }
1485
1486 bool wxSetWorkingDirectory(const wxString& d)
1487 {
1488 #if defined(__OS2__)
1489     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1490 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1491     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1492 #elif defined(__WINDOWS__)
1493
1494 #ifdef __WIN32__
1495 #ifdef __WXWINCE__
1496     // No equivalent in WinCE
1497     wxUnusedVar(d);
1498     return false;
1499 #else
1500     return (bool)(SetCurrentDirectory(d) != 0);
1501 #endif
1502 #else
1503     // Must change drive, too.
1504     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1505     if (isDriveSpec)
1506     {
1507         wxChar firstChar = d[0];
1508
1509         // To upper case
1510         if (firstChar > 90)
1511             firstChar = firstChar - 32;
1512
1513         // To a drive number
1514         unsigned int driveNo = firstChar - 64;
1515         if (driveNo > 0)
1516         {
1517             unsigned int noDrives;
1518             _dos_setdrive(driveNo, &noDrives);
1519         }
1520     }
1521     bool success = (chdir(WXSTRINGCAST d) == 0);
1522
1523     return success;
1524 #endif
1525
1526 #endif
1527 }
1528
1529 // Get the OS directory if appropriate (such as the Windows directory).
1530 // On non-Windows platform, probably just return the empty string.
1531 wxString wxGetOSDirectory()
1532 {
1533 #ifdef __WXWINCE__
1534     return wxString(wxT("\\Windows"));
1535 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1536     wxChar buf[256];
1537     GetWindowsDirectory(buf, 256);
1538     return wxString(buf);
1539 #elif defined(__WXMAC__)
1540     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1541 #else
1542     return wxEmptyString;
1543 #endif
1544 }
1545
1546 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1547 {
1548     size_t len = wxStrlen(pszFileName);
1549
1550     return len && wxIsPathSeparator(pszFileName[len - 1]);
1551 }
1552
1553 // find a file in a list of directories, returns false if not found
1554 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1555 {
1556     // we assume that it's not empty
1557     wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1558                  _T("empty file name in wxFindFileInPath"));
1559
1560     // skip path separator in the beginning of the file name if present
1561     if ( wxIsPathSeparator(*pszFile) )
1562         pszFile++;
1563
1564     // copy the path (strtok will modify it)
1565     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1566     wxStrcpy(szPath, pszPath);
1567
1568     wxString strFile;
1569     wxChar *pc, *save_ptr;
1570     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1571           pc != NULL;
1572           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1573     {
1574         // search for the file in this directory
1575         strFile = pc;
1576         if ( !wxEndsWithPathSeparator(pc) )
1577             strFile += wxFILE_SEP_PATH;
1578         strFile += pszFile;
1579
1580         if ( wxFileExists(strFile) ) {
1581             *pStr = strFile;
1582             break;
1583         }
1584     }
1585
1586     // suppress warning about unused variable save_ptr when wxStrtok() is a
1587     // macro which throws away its third argument
1588     save_ptr = pc;
1589
1590     delete [] szPath;
1591
1592     return pc != NULL;  // if true => we breaked from the loop
1593 }
1594
1595 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1596                              wxString *pstrPath,
1597                              wxString *pstrName,
1598                              wxString *pstrExt)
1599 {
1600     // it can be empty, but it shouldn't be NULL
1601     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1602
1603     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1604 }
1605
1606 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1607 {
1608 #if defined(__WXPALMOS__)
1609     return 0;
1610 #elif defined(__WXWINCE__)
1611     FILETIME creationTime, lastAccessTime, lastWriteTime;
1612     HANDLE fileHandle = ::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
1613         0, FILE_ATTRIBUTE_NORMAL, 0);
1614     if (fileHandle == INVALID_HANDLE_VALUE)
1615         return 0;
1616     else
1617     {
1618         if (GetFileTime(fileHandle, & creationTime, & lastAccessTime, & lastWriteTime))
1619         {
1620             CloseHandle(fileHandle);
1621
1622             wxDateTime dateTime;
1623             FILETIME ftLocal;
1624             if ( !::FileTimeToLocalFileTime(&lastWriteTime, &ftLocal) )
1625             {
1626                 wxLogLastError(_T("FileTimeToLocalFileTime"));
1627             }
1628
1629             SYSTEMTIME st;
1630             if ( !::FileTimeToSystemTime(&ftLocal, &st) )
1631             {
1632                 wxLogLastError(_T("FileTimeToSystemTime"));
1633             }
1634
1635             dateTime.Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
1636                 st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
1637             return dateTime.GetTicks();
1638         }
1639         else
1640             return 0;
1641     }
1642 #else
1643     wxStructStat buf;
1644     wxStat( filename, &buf);
1645
1646     return buf.st_mtime;
1647 #endif
1648 }
1649
1650
1651 // Parses the filterStr, returning the number of filters.
1652 // Returns 0 if none or if there's a problem.
1653 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1654
1655 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr, wxArrayString& descriptions, wxArrayString& filters)
1656 {
1657     descriptions.Clear();
1658     filters.Clear();
1659
1660     wxString str(filterStr);
1661
1662     wxString description, filter;
1663     int pos = 0;
1664     while( pos != wxNOT_FOUND )
1665     {
1666         pos = str.Find(wxT('|'));
1667         if ( pos == wxNOT_FOUND )
1668         {
1669             // if there are no '|'s at all in the string just take the entire
1670             // string as filter and make description empty for later autocompletion
1671             if ( filters.IsEmpty() )
1672             {
1673                 descriptions.Add(wxEmptyString);
1674                 filters.Add(filterStr);
1675             }
1676             else
1677             {
1678                 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1679             }
1680
1681             break;
1682         }
1683
1684         description = str.Left(pos);
1685         str = str.Mid(pos + 1);
1686         pos = str.Find(wxT('|'));
1687         if ( pos == wxNOT_FOUND )
1688         {
1689             filter = str;
1690         }
1691         else
1692         {
1693             filter = str.Left(pos);
1694             str = str.Mid(pos + 1);
1695         }
1696
1697         descriptions.Add(description);
1698         filters.Add(filter);
1699     }
1700
1701 #if defined(__WXMOTIF__)
1702     // split it so there is one wildcard per entry
1703     for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1704     {
1705         pos = filters[i].Find(wxT(';'));
1706         if (pos != wxNOT_FOUND)
1707         {
1708             // first split only filters
1709             descriptions.Insert(descriptions[i],i+1);
1710             filters.Insert(filters[i].Mid(pos+1),i+1);
1711             filters[i]=filters[i].Left(pos);
1712
1713             // autoreplace new filter in description with pattern:
1714             //     C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1715             // cause split into:
1716             //     C/C++ Files(*.cpp)|*.cpp
1717             //     C/C++ Files(*.c;*.h)|*.c;*.h
1718             // and next iteration cause another split into:
1719             //     C/C++ Files(*.cpp)|*.cpp
1720             //     C/C++ Files(*.c)|*.c
1721             //     C/C++ Files(*.h)|*.h
1722             for ( size_t k=i;k<i+2;k++ )
1723             {
1724                 pos = descriptions[k].Find(filters[k]);
1725                 if (pos != wxNOT_FOUND)
1726                 {
1727                     wxString before = descriptions[k].Left(pos);
1728                     wxString after = descriptions[k].Mid(pos+filters[k].Len());
1729                     pos = before.Find(_T('('),true);
1730                     if (pos>before.Find(_T(')'),true))
1731                     {
1732                         before = before.Left(pos+1);
1733                         before << filters[k];
1734                         pos = after.Find(_T(')'));
1735                         int pos1 = after.Find(_T('('));
1736                         if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1737                         {
1738                             before << after.Mid(pos);
1739                             descriptions[k] = before;
1740                         }
1741                     }
1742                 }
1743             }
1744         }
1745     }
1746 #endif
1747
1748     // autocompletion
1749     for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1750     {
1751         if ( descriptions[j].empty() && !filters[j].empty() )
1752         {
1753             descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1754         }
1755     }
1756
1757     return filters.GetCount();
1758 }
1759
1760
1761 //------------------------------------------------------------------------
1762 // wild character routines
1763 //------------------------------------------------------------------------
1764
1765 bool wxIsWild( const wxString& pattern )
1766 {
1767     wxString tmp = pattern;
1768     wxChar *pat = WXSTRINGCAST(tmp);
1769     while (*pat)
1770     {
1771         switch (*pat++)
1772         {
1773         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1774             return true;
1775         case wxT('\\'):
1776             if (!*pat++)
1777                 return false;
1778         }
1779     }
1780     return false;
1781 }
1782
1783 /*
1784 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1785 *
1786 * The match procedure is public domain code (from ircII's reg.c)
1787 */
1788
1789 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1790 {
1791         if (text.empty())
1792         {
1793                 /* Match if both are empty. */
1794                 return pat.empty();
1795         }
1796
1797         const wxChar *m = pat.c_str(),
1798         *n = text.c_str(),
1799         *ma = NULL,
1800         *na = NULL,
1801         *mp = NULL,
1802         *np = NULL;
1803         int just = 0,
1804         pcount = 0,
1805         acount = 0,
1806         count = 0;
1807
1808         if (dot_special && (*n == wxT('.')))
1809         {
1810                 /* Never match so that hidden Unix files
1811                  * are never found. */
1812                 return false;
1813         }
1814
1815         for (;;)
1816         {
1817                 if (*m == wxT('*'))
1818                 {
1819                         ma = ++m;
1820                         na = n;
1821                         just = 1;
1822                         mp = NULL;
1823                         acount = count;
1824                 }
1825                 else if (*m == wxT('?'))
1826                 {
1827                         m++;
1828                         if (!*n++)
1829                         return false;
1830                 }
1831                 else
1832                 {
1833                         if (*m == wxT('\\'))
1834                         {
1835                                 m++;
1836                                 /* Quoting "nothing" is a bad thing */
1837                                 if (!*m)
1838                                 return false;
1839                         }
1840                         if (!*m)
1841                         {
1842                                 /*
1843                                 * If we are out of both strings or we just
1844                                 * saw a wildcard, then we can say we have a
1845                                 * match
1846                                 */
1847                                 if (!*n)
1848                                 return true;
1849                                 if (just)
1850                                 return true;
1851                                 just = 0;
1852                                 goto not_matched;
1853                         }
1854                         /*
1855                         * We could check for *n == NULL at this point, but
1856                         * since it's more common to have a character there,
1857                         * check to see if they match first (m and n) and
1858                         * then if they don't match, THEN we can check for
1859                         * the NULL of n
1860                         */
1861                         just = 0;
1862                         if (*m == *n)
1863                         {
1864                                 m++;
1865                                 if (*n == wxT(' '))
1866                                 mp = NULL;
1867                                 count++;
1868                                 n++;
1869                         }
1870                         else
1871                         {
1872
1873                                 not_matched:
1874
1875                                 /*
1876                                 * If there are no more characters in the
1877                                 * string, but we still need to find another
1878                                 * character (*m != NULL), then it will be
1879                                 * impossible to match it
1880                                 */
1881                                 if (!*n)
1882                                 return false;
1883                                 if (mp)
1884                                 {
1885                                         m = mp;
1886                                         if (*np == wxT(' '))
1887                                         {
1888                                                 mp = NULL;
1889                                                 goto check_percent;
1890                                         }
1891                                         n = ++np;
1892                                         count = pcount;
1893                                 }
1894                                 else
1895                                 check_percent:
1896
1897                                 if (ma)
1898                                 {
1899                                         m = ma;
1900                                         n = ++na;
1901                                         count = acount;
1902                                 }
1903                                 else
1904                                 return false;
1905                         }
1906                 }
1907         }
1908 }
1909
1910 // Return the type of an open file
1911 //
1912 // Some file types on some platforms seem seekable but in fact are not.
1913 // The main use of this function is to allow such cases to be detected
1914 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1915 //
1916 // This is important for the archive streams, which benefit greatly from
1917 // being able to seek on a stream, but which will produce corrupt archives
1918 // if they unknowingly seek on a non-seekable stream.
1919 //
1920 // wxFILE_KIND_DISK is a good catch all return value, since other values
1921 // disable features of the archive streams. Some other value must be returned
1922 // for a file type that appears seekable but isn't.
1923 //
1924 // Known examples:
1925 //   *  Pipes on Windows
1926 //   *  Files on VMS with a record format other than StreamLF
1927 //
1928 wxFileKind wxGetFileKind(int fd)
1929 {
1930 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1931     switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1932     {
1933         case FILE_TYPE_CHAR:
1934             return wxFILE_KIND_TERMINAL;
1935         case FILE_TYPE_DISK:
1936             return wxFILE_KIND_DISK;
1937         case FILE_TYPE_PIPE:
1938             return wxFILE_KIND_PIPE;
1939     }
1940
1941     return wxFILE_KIND_UNKNOWN;
1942
1943 #elif defined(__UNIX__)
1944     if (isatty(fd))
1945         return wxFILE_KIND_TERMINAL;
1946
1947     struct stat st;
1948     fstat(fd, &st);
1949
1950     if (S_ISFIFO(st.st_mode))
1951         return wxFILE_KIND_PIPE;
1952     if (!S_ISREG(st.st_mode))
1953         return wxFILE_KIND_UNKNOWN;
1954
1955     #if defined(__VMS__)
1956         if (st.st_fab_rfm != FAB$C_STMLF)
1957             return wxFILE_KIND_UNKNOWN;
1958     #endif
1959
1960     return wxFILE_KIND_DISK;
1961
1962 #else
1963     #define wxFILEKIND_STUB
1964     (void)fd;
1965     return wxFILE_KIND_DISK;
1966 #endif
1967 }
1968
1969 wxFileKind wxGetFileKind(FILE *fp)
1970 {
1971     // Note: The watcom rtl dll doesn't have fileno (the static lib does).
1972     //       Should be fixed in version 1.4.
1973 #if defined(wxFILEKIND_STUB) || \
1974         (defined(__WATCOMC__) && __WATCOMC__ <= 1230 && defined(__SW_BR))
1975     (void)fp;
1976     return wxFILE_KIND_DISK;
1977 #else
1978     return wxGetFileKind(fileno(fp));
1979 #endif
1980 }
1981
1982 #ifdef __VISUALC__
1983     #pragma warning(default:4706)   // assignment within conditional expression
1984 #endif // VC++