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"
  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 #ifdef __WXWINCE__
  58 #include "wx/msw/wince/time.h"
  59 #include "wx/msw/private.h"
  60 #else
  61 #include <time.h>
  62 #endif
  63
  64 #ifdef __WXWINCE__
  65 // Nothing
  66 #elif !defined(__MWERKS__)
  67     #include <sys/types.h>
  68     #include <sys/stat.h>
  69 #else
  70 #ifdef __MACH__
  71 #include <sys/types.h>
  72 #include <utime.h>
  73 #include <sys/stat.h>
  74 #include <unistd.h>
  75 #else
  76     #include <stat.h>
  77     #include <unistd.h>
  78     #include <unix.h>
  79     #include <fcntl.h>
  80 #endif
  81 #endif
  82
  83 #ifdef __UNIX__
  84     #include <unistd.h>
  85     #include <dirent.h>
  86     #include <fcntl.h>
  87 #endif
  88
  89 #ifdef __WXPM__
  90     #include <process.h>
  91     #include "wx/os2/private.h"
  92 #endif
  93 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  94 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__)
  95     #include <direct.h>
  96     #include <dos.h>
  97     #include <io.h>
  98 #endif // __WINDOWS__
  99 #endif // native Win compiler
 100
 101 #if defined(__DOS__)
 102     #ifdef __WATCOMC__
 103         #include <direct.h>
 104         #include <dos.h>
 105         #include <io.h>
 106     #endif
 107     #ifdef __DJGPP__
 108         #include <unistd.h>
 109     #endif
 110 #endif
 111
 112 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
 113                     // this (3.1 I believe) and how to test for it.
 114                     // If this works for Borland 4.0 as well, then no worries.
 115     #include <dir.h>
 116 #endif
 117
 118 #ifdef __SALFORDC__
 119     #include <dir.h>
 120     #include <unix.h>
 121 #endif
 122
 123 #include "wx/log.h"
 124
 125 // No, Cygwin doesn't appear to have fnmatch.h after all.
 126 #if defined(HAVE_FNMATCH_H)
 127     #include "fnmatch.h"
 128 #endif
 129
 130 #ifdef __WINDOWS__
 131     #include "wx/msw/wrapwin.h"
 132     #include "wx/msw/mslu.h"
 133
 134     // for _getcwd
 135     #ifdef __MINGW32__
 136         #include <io.h>
 137     #endif
 138
 139     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
 140     //
 141     // note that it must be included after <windows.h>
 142     #ifdef __GNUWIN32__
 143         #ifdef __CYGWIN__
 144             #include <sys/cygwin.h>
 145         #endif
 146     #endif // __GNUWIN32__
 147 #endif // __WINDOWS__
 148
 149 // TODO: Borland probably has _wgetcwd as well?
 150 #ifdef _MSC_VER
 151     #define HAVE_WGETCWD
 152 #endif
 153
 154 // ----------------------------------------------------------------------------
 155 // constants
 156 // ----------------------------------------------------------------------------
 157
 158 #ifndef _MAXPATHLEN
 159     #define _MAXPATHLEN 1024
 160 #endif
 161
 162 #ifdef __WXMAC__
 163 #  ifdef __DARWIN__
 164 #    include "MoreFilesX.h"
 165 #  else
 166 #    include "MoreFiles.h"
 167 #    include "MoreFilesExtras.h"
 168 #    include "FullPath.h"
 169 #    include "FSpCompat.h"
 170 #  endif
 171 #endif
 172
 173 // ----------------------------------------------------------------------------
 174 // private globals
 175 // ----------------------------------------------------------------------------
 176
 177 // MT-FIXME: get rid of this horror and all code using it
 178 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 179
 180 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 181 //
 182 // VisualAge C++ V4.0 cannot have any external linkage const decs
 183 // in headers included by more than one primary source
 184 //
 185 const off_t wxInvalidOffset = (off_t)-1;
 186 #endif
 187
 188 // ----------------------------------------------------------------------------
 189 // macros
 190 // ----------------------------------------------------------------------------
 191
 192 // we need to translate Mac filenames before passing them to OS functions
 193 #define OS_FILENAME(s) (s.fn_str())
 194
 195 // ============================================================================
 196 // implementation
 197 // ============================================================================
 198
 199 #ifdef wxNEED_WX_UNISTD_H
 200
 201 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 202 {
 203     return stat( wxConvFile.cWX2MB( file_name ), buf );
 204 }
 205
 206 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 207 {
 208     return access( wxConvFile.cWX2MB( pathname ), mode );
 209 }
 210
 211 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 212 {
 213     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 214 }
 215
 216 #endif
 217    // wxNEED_WX_UNISTD_H
 218
 219 // ----------------------------------------------------------------------------
 220 // wxPathList
 221 // ----------------------------------------------------------------------------
 222
 223 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 224
 225 static inline wxChar* MYcopystring(const wxString& s)
 226 {
 227     wxChar* copy = new wxChar[s.length() + 1];
 228     return wxStrcpy(copy, s.c_str());
 229 }
 230
 231 static inline wxChar* MYcopystring(const wxChar* s)
 232 {
 233     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 234     return wxStrcpy(copy, s);
 235 }
 236
 237 void wxPathList::Add (const wxString& path)
 238 {
 239     wxStringList::Add (WXSTRINGCAST path);
 240 }
 241
 242 // Add paths e.g. from the PATH environment variable
 243 void wxPathList::AddEnvList (const wxString& envVariable)
 244 {
 245     // No environment variables on WinCE
 246 #ifndef __WXWINCE__
 247     static const wxChar PATH_TOKS[] =
 248 #ifdef __WINDOWS__
 249         /*
 250         The space has been removed from the tokenizers, otherwise a
 251         path such as "C:\Program Files" would be split into 2 paths:
 252         "C:\Program" and "Files"
 253         */
 254 //        wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 255         wxT(";"); // Don't seperate with colon in DOS (used for drive)
 256 #else
 257         wxT(" :;");
 258 #endif
 259
 260     wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 261     if (val && *val)
 262     {
 263         wxChar *s = MYcopystring (val);
 264         wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 265
 266         if (token)
 267         {
 268             Add(token);
 269             while (token)
 270             {
 271                 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
 272                     != NULL )
 273                 {
 274                     Add(token);
 275                 }
 276             }
 277         }
 278
 279         // suppress warning about unused variable save_ptr when wxStrtok() is a
 280         // macro which throws away its third argument
 281         save_ptr = token;
 282
 283         delete [] s;
 284     }
 285 #endif
 286 }
 287
 288 // Given a full filename (with path), ensure that that file can
 289 // be accessed again USING FILENAME ONLY by adding the path
 290 // to the list if not already there.
 291 void wxPathList::EnsureFileAccessible (const wxString& path)
 292 {
 293     wxString path_only(wxPathOnly(path));
 294     if ( !path_only.IsEmpty() )
 295     {
 296         if ( !Member(path_only) )
 297             Add(path_only);
 298     }
 299 }
 300
 301 bool wxPathList::Member (const wxString& path)
 302 {
 303   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 304   {
 305       wxString path2( node->GetData() );
 306       if (
 307 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 308       // Case INDEPENDENT
 309           path.CompareTo (path2, wxString::ignoreCase) == 0
 310 #else
 311       // Case sensitive File System
 312           path.CompareTo (path2) == 0
 313 #endif
 314         )
 315         return TRUE;
 316   }
 317   return FALSE;
 318 }
 319
 320 wxString wxPathList::FindValidPath (const wxString& file)
 321 {
 322   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 323     return wxString(wxFileFunctionsBuffer);
 324
 325   wxChar buf[_MAXPATHLEN];
 326   wxStrcpy(buf, wxFileFunctionsBuffer);
 327
 328   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 329   filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 330
 331   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 332     {
 333       const wxChar *path = node->GetData();
 334       wxStrcpy (wxFileFunctionsBuffer, path);
 335       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 336       if (ch != wxT('\\') && ch != wxT('/'))
 337         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 338       wxStrcat (wxFileFunctionsBuffer, filename);
 339 #ifdef __WINDOWS__
 340       wxUnix2DosFilename (wxFileFunctionsBuffer);
 341 #endif
 342       if (wxFileExists (wxFileFunctionsBuffer))
 343       {
 344         return wxString(wxFileFunctionsBuffer);        // Found!
 345       }
 346     }                                // for()
 347
 348   return wxEmptyString;                    // Not found
 349 }
 350
 351 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 352 {
 353     wxString f = FindValidPath(file);
 354     if ( wxIsAbsolutePath(f) )
 355         return f;
 356
 357     wxString buf;
 358     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 359
 360     if ( !wxEndsWithPathSeparator(buf) )
 361     {
 362         buf += wxFILE_SEP_PATH;
 363     }
 364     buf += f;
 365
 366     return buf;
 367 }
 368
 369 bool
 370 wxFileExists (const wxString& filename)
 371 {
 372     // we must use GetFileAttributes() instead of the ANSI C functions because
 373     // it can cope with network (UNC) paths unlike them
 374 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 375     DWORD ret = ::GetFileAttributes(filename);
 376
 377     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 378 #else // !__WIN32__
 379     wxStructStat st;
 380     return wxStat(filename, &st) == 0 && (st.st_mode & S_IFREG);
 381 #endif // __WIN32__/!__WIN32__
 382 }
 383
 384 bool
 385 wxIsAbsolutePath (const wxString& filename)
 386 {
 387     if (filename != wxT(""))
 388     {
 389 #if defined(__WXMAC__) && !defined(__DARWIN__)
 390         // Classic or Carbon CodeWarrior like
 391         // Carbon with Apple DevTools is Unix like
 392
 393         // This seems wrong to me, but there is no fix. since
 394         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 395         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 396         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 397             return TRUE ;
 398 #else
 399         // Unix like or Windows
 400         if (filename[0] == wxT('/'))
 401             return TRUE;
 402 #endif
 403 #ifdef __VMS__
 404         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 405             return TRUE;
 406 #endif
 407 #ifdef __WINDOWS__
 408         // MSDOS like
 409         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 410             return TRUE;
 411 #endif
 412     }
 413     return FALSE ;
 414 }
 415
 416 /*
 417  * Strip off any extension (dot something) from end of file,
 418  * IF one exists. Inserts zero into buffer.
 419  *
 420  */
 421
 422 void wxStripExtension(wxChar *buffer)
 423 {
 424   int len = wxStrlen(buffer);
 425   int i = len-1;
 426   while (i > 0)
 427   {
 428     if (buffer[i] == wxT('.'))
 429     {
 430       buffer[i] = 0;
 431       break;
 432     }
 433     i --;
 434   }
 435 }
 436
 437 void wxStripExtension(wxString& buffer)
 438 {
 439   size_t len = buffer.Length();
 440   size_t i = len-1;
 441   while (i > 0)
 442   {
 443     if (buffer.GetChar(i) == wxT('.'))
 444     {
 445       buffer = buffer.Left(i);
 446       break;
 447     }
 448     i --;
 449   }
 450 }
 451
 452 // Destructive removal of /./ and /../ stuff
 453 wxChar *wxRealPath (wxChar *path)
 454 {
 455 #ifdef __WXMSW__
 456   static const wxChar SEP = wxT('\\');
 457   wxUnix2DosFilename(path);
 458 #else
 459   static const wxChar SEP = wxT('/');
 460 #endif
 461   if (path[0] && path[1]) {
 462     /* MATTHEW: special case "/./x" */
 463     wxChar *p;
 464     if (path[2] == SEP && path[1] == wxT('.'))
 465       p = &path[0];
 466     else
 467       p = &path[2];
 468     for (; *p; p++)
 469       {
 470         if (*p == SEP)
 471           {
 472             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 473               {
 474                 wxChar *q;
 475                 for (q = p - 1; q >= path && *q != SEP; q--)
 476                 {
 477                     // Empty
 478                 }
 479
 480                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 481                     && (q - 1 <= path || q[-1] != SEP))
 482                   {
 483                     wxStrcpy (q, p + 3);
 484                     if (path[0] == wxT('\0'))
 485                       {
 486                         path[0] = SEP;
 487                         path[1] = wxT('\0');
 488                       }
 489 #ifdef __WXMSW__
 490                     /* Check that path[2] is NULL! */
 491                     else if (path[1] == wxT(':') && !path[2])
 492                       {
 493                         path[2] = SEP;
 494                         path[3] = wxT('\0');
 495                       }
 496 #endif
 497                     p = q - 1;
 498                   }
 499               }
 500             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 501               wxStrcpy (p, p + 2);
 502           }
 503       }
 504   }
 505   return path;
 506 }
 507
 508 // Must be destroyed
 509 wxChar *wxCopyAbsolutePath(const wxString& filename)
 510 {
 511   if (filename == wxT(""))
 512     return (wxChar *) NULL;
 513
 514   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 515     wxChar  buf[_MAXPATHLEN];
 516     buf[0] = wxT('\0');
 517     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 518     wxChar ch = buf[wxStrlen(buf) - 1];
 519 #ifdef __WXMSW__
 520     if (ch != wxT('\\') && ch != wxT('/'))
 521         wxStrcat(buf, wxT("\\"));
 522 #else
 523     if (ch != wxT('/'))
 524         wxStrcat(buf, wxT("/"));
 525 #endif
 526     wxStrcat(buf, wxFileFunctionsBuffer);
 527     return MYcopystring( wxRealPath(buf) );
 528   }
 529   return MYcopystring( wxFileFunctionsBuffer );
 530 }
 531
 532 /*-
 533  Handles:
 534    ~/ => home dir
 535    ~user/ => user's home dir
 536    If the environment variable a = "foo" and b = "bar" then:
 537    Unix:
 538         $a        =>        foo
 539         $a$b        =>        foobar
 540         $a.c        =>        foo.c
 541         xxx$a        =>        xxxfoo
 542         ${a}!        =>        foo!
 543         $(b)!        =>        bar!
 544         \$a        =>        \$a
 545    MSDOS:
 546         $a        ==>        $a
 547         $(a)        ==>        foo
 548         $(a)$b        ==>        foo$b
 549         $(a)$(b)==>        foobar
 550         test.$$        ==>        test.$$
 551  */
 552
 553 /* input name in name, pathname output to buf. */
 554
 555 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 556 {
 557     register wxChar *d, *s, *nm;
 558     wxChar          lnm[_MAXPATHLEN];
 559     int             q;
 560
 561     // Some compilers don't like this line.
 562 //    const wxChar    trimchars[] = wxT("\n \t");
 563
 564     wxChar      trimchars[4];
 565     trimchars[0] = wxT('\n');
 566     trimchars[1] = wxT(' ');
 567     trimchars[2] = wxT('\t');
 568     trimchars[3] = 0;
 569
 570 #ifdef __WXMSW__
 571      const wxChar     SEP = wxT('\\');
 572 #else
 573      const wxChar     SEP = wxT('/');
 574 #endif
 575     buf[0] = wxT('\0');
 576     if (name == NULL || *name == wxT('\0'))
 577         return buf;
 578     nm = MYcopystring(name); // Make a scratch copy
 579     wxChar *nm_tmp = nm;
 580
 581     /* Skip leading whitespace and cr */
 582     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 583         nm++;
 584     /* And strip off trailing whitespace and cr */
 585     s = nm + (q = wxStrlen(nm)) - 1;
 586     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 587         *s = wxT('\0');
 588
 589     s = nm;
 590     d = lnm;
 591 #ifdef __WXMSW__
 592     q = FALSE;
 593 #else
 594     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 595 #endif
 596
 597     /* Expand inline environment variables */
 598 #ifdef __VISAGECPP__
 599     while (*d)
 600     {
 601       *d++ = *s;
 602       if(*s == wxT('\\'))
 603       {
 604         *(d - 1) = *++s;
 605         if (*d)
 606         {
 607           s++;
 608           continue;
 609         }
 610         else
 611            break;
 612       }
 613       else
 614 #else
 615     while ((*d++ = *s) != 0) {
 616 #  ifndef __WXMSW__
 617         if (*s == wxT('\\')) {
 618             if ((*(d - 1) = *++s)) {
 619                 s++;
 620                 continue;
 621             } else
 622                 break;
 623         } else
 624 #  endif
 625 #endif
 626             // No env variables on WinCE
 627 #ifndef __WXWINCE__
 628 #ifdef __WXMSW__
 629         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 630 #else
 631         if (*s++ == wxT('$'))
 632 #endif
 633         {
 634             register wxChar  *start = d;
 635             register int     braces = (*s == wxT('{') || *s == wxT('('));
 636             register wxChar  *value;
 637             while ((*d++ = *s) != 0)
 638                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 639                     break;
 640                 else
 641                     s++;
 642             *--d = 0;
 643             value = wxGetenv(braces ? start + 1 : start);
 644             if (value) {
 645                 for ((d = start - 1); (*d++ = *value++) != 0;)
 646                 {
 647                     // Empty
 648                 }
 649
 650                 d--;
 651                 if (braces && *s)
 652                     s++;
 653             }
 654         }
 655 #endif
 656         // __WXWINCE__
 657     }
 658
 659     /* Expand ~ and ~user */
 660     nm = lnm;
 661     if (nm[0] == wxT('~') && !q)
 662     {
 663         /* prefix ~ */
 664         if (nm[1] == SEP || nm[1] == 0)
 665         {        /* ~/filename */
 666         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 667             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 668                 if (*++nm)
 669                     nm++;
 670             }
 671         } else
 672         {                /* ~user/filename */
 673             register wxChar  *nnm;
 674             register wxChar  *home;
 675             for (s = nm; *s && *s != SEP; s++)
 676             {
 677                 // Empty
 678             }
 679             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 680             was_sep = (*s == SEP);
 681             nnm = *s ? s + 1 : s;
 682             *s = 0;
 683         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 684             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 685                if (was_sep) /* replace only if it was there: */
 686                    *s = SEP;
 687                 s = NULL;
 688             } else {
 689                 nm = nnm;
 690                 s = home;
 691             }
 692         }
 693     }
 694
 695     d = buf;
 696     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 697         /* Copy home dir */
 698         while (wxT('\0') != (*d++ = *s++))
 699           /* loop */;
 700         // Handle root home
 701         if (d - 1 > buf && *(d - 2) != SEP)
 702           *(d - 1) = SEP;
 703     }
 704     s = nm;
 705     while ((*d++ = *s++) != 0)
 706     {
 707         // Empty
 708     }
 709     delete[] nm_tmp; // clean up alloc
 710     /* Now clean up the buffer */
 711     return wxRealPath(buf);
 712 }
 713
 714 /* Contract Paths to be build upon an environment variable
 715    component:
 716
 717    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 718
 719    The call wxExpandPath can convert these back!
 720  */
 721 wxChar *
 722 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 723 {
 724   static wxChar dest[_MAXPATHLEN];
 725
 726   if (filename == wxT(""))
 727     return (wxChar *) NULL;
 728
 729   wxStrcpy (dest, WXSTRINGCAST filename);
 730 #ifdef __WXMSW__
 731   wxUnix2DosFilename(dest);
 732 #endif
 733
 734   // Handle environment
 735   const wxChar *val = (const wxChar *) NULL;
 736 #ifndef __WXWINCE__
 737   wxChar *tcp = (wxChar *) NULL;
 738   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 739      (tcp = wxStrstr (dest, val)) != NULL)
 740     {
 741         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 742         *tcp++ = wxT('$');
 743         *tcp++ = wxT('{');
 744         wxStrcpy (tcp, WXSTRINGCAST envname);
 745         wxStrcat (tcp, wxT("}"));
 746         wxStrcat (tcp, wxFileFunctionsBuffer);
 747     }
 748 #endif
 749
 750   // Handle User's home (ignore root homes!)
 751   size_t len = 0;
 752   if ((val = wxGetUserHome (user)) != NULL &&
 753       (len = wxStrlen(val)) > 2 &&
 754       wxStrncmp(dest, val, len) == 0)
 755     {
 756       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 757       if (user != wxT(""))
 758              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 759       wxStrcat(wxFileFunctionsBuffer, dest + len);
 760       wxStrcpy (dest, wxFileFunctionsBuffer);
 761     }
 762
 763   return dest;
 764 }
 765
 766 // Return just the filename, not the path (basename)
 767 wxChar *wxFileNameFromPath (wxChar *path)
 768 {
 769     wxString p = path;
 770     wxString n = wxFileNameFromPath(p);
 771
 772     return path + p.length() - n.length();
 773 }
 774
 775 wxString wxFileNameFromPath (const wxString& path)
 776 {
 777     wxString name, ext;
 778     wxFileName::SplitPath(path, NULL, &name, &ext);
 779
 780     wxString fullname = name;
 781     if ( !ext.empty() )
 782     {
 783         fullname << wxFILE_SEP_EXT << ext;
 784     }
 785
 786     return fullname;
 787 }
 788
 789 // Return just the directory, or NULL if no directory
 790 wxChar *
 791 wxPathOnly (wxChar *path)
 792 {
 793     if (path && *path)
 794     {
 795         static wxChar buf[_MAXPATHLEN];
 796
 797         // Local copy
 798         wxStrcpy (buf, path);
 799
 800         int l = wxStrlen(path);
 801         int i = l - 1;
 802
 803         // Search backward for a backward or forward slash
 804         while (i > -1)
 805         {
 806 #if defined(__WXMAC__) && !defined(__DARWIN__)
 807             // Classic or Carbon CodeWarrior like
 808             // Carbon with Apple DevTools is Unix like
 809             if (path[i] == wxT(':') )
 810             {
 811                 buf[i] = 0;
 812                 return buf;
 813             }
 814 #else
 815             // Unix like or Windows
 816             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 817             {
 818                 buf[i] = 0;
 819                 return buf;
 820             }
 821 #endif
 822 #ifdef __VMS__
 823             if (path[i] == wxT(']'))
 824             {
 825                 buf[i+1] = 0;
 826                 return buf;
 827             }
 828 #endif
 829             i --;
 830         }
 831
 832 #if defined(__WXMSW__) || defined(__WXPM__)
 833         // Try Drive specifier
 834         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 835         {
 836             // A:junk --> A:. (since A:.\junk Not A:\junk)
 837             buf[2] = wxT('.');
 838             buf[3] = wxT('\0');
 839             return buf;
 840         }
 841 #endif
 842     }
 843     return (wxChar *) NULL;
 844 }
 845
 846 // Return just the directory, or NULL if no directory
 847 wxString wxPathOnly (const wxString& path)
 848 {
 849     if (path != wxT(""))
 850     {
 851         wxChar buf[_MAXPATHLEN];
 852
 853         // Local copy
 854         wxStrcpy (buf, WXSTRINGCAST path);
 855
 856         int l = path.Length();
 857         int i = l - 1;
 858
 859         // Search backward for a backward or forward slash
 860         while (i > -1)
 861         {
 862 #if defined(__WXMAC__) && !defined(__DARWIN__)
 863             // Classic or Carbon CodeWarrior like
 864             // Carbon with Apple DevTools is Unix like
 865             if (path[i] == wxT(':') )
 866             {
 867                 buf[i] = 0;
 868                 return wxString(buf);
 869             }
 870 #else
 871             // Unix like or Windows
 872             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 873             {
 874                 buf[i] = 0;
 875                 return wxString(buf);
 876             }
 877 #endif
 878 #ifdef __VMS__
 879             if (path[i] == wxT(']'))
 880             {
 881                 buf[i+1] = 0;
 882                 return wxString(buf);
 883             }
 884 #endif
 885             i --;
 886         }
 887
 888 #if defined(__WXMSW__) || defined(__WXPM__)
 889         // Try Drive specifier
 890         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 891         {
 892             // A:junk --> A:. (since A:.\junk Not A:\junk)
 893             buf[2] = wxT('.');
 894             buf[3] = wxT('\0');
 895             return wxString(buf);
 896         }
 897 #endif
 898     }
 899     return wxString(wxT(""));
 900 }
 901
 902 // Utility for converting delimiters in DOS filenames to UNIX style
 903 // and back again - or we get nasty problems with delimiters.
 904 // Also, convert to lower case, since case is significant in UNIX.
 905
 906 #if defined(__WXMAC__)
 907 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 908 {
 909 #ifdef __DARWIN__
 910     int         i;
 911     int         j;
 912     OSErr       theErr;
 913     OSStatus    theStatus;
 914     Boolean     isDirectory = FALSE;
 915     Str255    theParentPath = "\p";
 916     FSSpec      theParentSpec;
 917     FSRef       theParentRef;
 918     char        theFileName[FILENAME_MAX];
 919     char        thePath[FILENAME_MAX];
 920
 921     strcpy(thePath, "");
 922
 923     // GD: Separate file name from path and make a FSRef to the parent
 924     //     directory. This is necessary since FSRefs cannot reference files
 925     //     that have not yet been created.
 926     //     Based on example code from Apple Technical Note TN2022
 927     //       http://developer.apple.com/technotes/tn/tn2022.html
 928
 929     // check whether we are converting a directory
 930     isDirectory = ((spec->name)[spec->name[0]] == ':');
 931     // count length of file name
 932     for (i = spec->name[0] - (isDirectory ? 1 : 0); ((spec->name[i] != ':') && (i > 0)); i--);
 933     // copy file name
 934     //   prepend path separator since it will later be appended to the path
 935     theFileName[0] = wxFILE_SEP_PATH;
 936     for (j = i + 1; j <= spec->name[0] - (isDirectory ? 1 : 0); j++) {
 937         theFileName[j - i] = spec->name[j];
 938     }
 939     theFileName[j - i] = '\0';
 940     // copy path if any
 941     for (j = 1; j <= i; j++) {
 942         theParentPath[++theParentPath[0]] = spec->name[j];
 943     }
 944     theErr = FSMakeFSSpec(spec->vRefNum, spec->parID, theParentPath, &theParentSpec);
 945     if (theErr == noErr) {
 946         // convert the FSSpec to an FSRef
 947         theErr = FSpMakeFSRef(&theParentSpec, &theParentRef);
 948     }
 949     if (theErr == noErr) {
 950         // get the POSIX path associated with the FSRef
 951         theStatus = FSRefMakePath(&theParentRef,
 952                                   (UInt8 *)thePath, sizeof(thePath));
 953     }
 954     if (theStatus == noErr) {
 955         // append file name to path
 956         //   includes previously prepended path separator
 957         strcat(thePath, theFileName);
 958     }
 959
 960     // create path string for return value
 961     wxString result( thePath , wxConvLocal) ;
 962 #else
 963     Handle    myPath ;
 964     short     length ;
 965
 966     // get length of path and allocate handle
 967     FSpGetFullPath( spec , &length , &myPath ) ;
 968     ::SetHandleSize( myPath , length + 1 ) ;
 969     ::HLock( myPath ) ;
 970     (*myPath)[length] = 0 ;
 971     if ((length > 0) && ((*myPath)[length-1] == ':'))
 972         (*myPath)[length-1] = 0 ;
 973
 974     // create path string for return value
 975     wxString result( *myPath , wxConvLocal) ;
 976
 977     // free allocated handle
 978     ::HUnlock( myPath ) ;
 979     ::DisposeHandle( myPath ) ;
 980 #endif
 981
 982     return result ;
 983 }
 984 #ifndef __DARWIN__
 985 // Mac file names are POSIX (Unix style) under Darwin
 986 // therefore the conversion functions below are not needed
 987
 988 static wxChar sMacFileNameConversion[ 1000 ] ;
 989 static char scMacFileNameConversion[ 1000 ] ;
 990
 991 #endif
 992 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 993 {
 994     OSStatus err = noErr ;
 995 #ifdef __DARWIN__
 996     FSRef theRef;
 997
 998     // get the FSRef associated with the POSIX path
 999     err = FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
1000     // convert the FSRef to an FSSpec
1001     err = FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
1002 #else
1003     if ( strchr( path , ':' ) == NULL )
1004     {
1005         // try whether it is a volume / or a mounted volume
1006         strncpy( scMacFileNameConversion , path , 1000 ) ;
1007         scMacFileNameConversion[998] = 0 ;
1008         strcat( scMacFileNameConversion , ":" ) ;
1009         err = FSpLocationFromFullPath( strlen(scMacFileNameConversion) , scMacFileNameConversion , spec ) ;
1010     }
1011     else
1012     {
1013         err = FSpLocationFromFullPath( strlen(path) , path , spec ) ;
1014     }
1015 #endif
1016 }
1017
1018 #if wxUSE_UNICODE
1019 WXDLLEXPORT void wxMacFilename2FSSpec( const wxChar *path , FSSpec *spec )
1020 {
1021     return wxMacFilename2FSSpec( wxConvFile.cWC2MB(path) , spec ) ;
1022 }
1023 #endif
1024
1025 #ifndef __DARWIN__
1026
1027 wxString wxMac2UnixFilename (const wxChar *str)
1028 {
1029     wxChar *s = sMacFileNameConversion ;
1030     wxStrcpy( s , str ) ;
1031     if (s)
1032     {
1033         memmove( s+1 , s ,wxStrlen( s ) + 1 * sizeof(wxChar)) ;
1034         if ( *s == ':' )
1035             *s = '.' ;
1036         else
1037             *s = '/' ;
1038
1039         while (*s)
1040         {
1041             if (*s == ':')
1042                 *s = '/';
1043             else
1044                 *s = wxTolower(*s);        // Case INDEPENDENT
1045             s++;
1046         }
1047     }
1048     return wxString(sMacFileNameConversion) ;
1049 }
1050
1051 wxString wxUnix2MacFilename (const wxChar *str)
1052 {
1053     wxChar *s = sMacFileNameConversion ;
1054     wxStrcpy( s , str ) ;
1055     if (s)
1056     {
1057         if ( *s == '.' )
1058         {
1059             // relative path , since it goes on with slash which is translated to a :
1060             memmove( s , s+1 ,wxStrlen( s ) * sizeof(wxChar)) ;
1061         }
1062         else if ( *s == '/' )
1063         {
1064             // absolute path -> on mac just start with the drive name
1065             memmove( s , s+1 ,wxStrlen( s ) * sizeof(wxChar) ) ;
1066         }
1067         else
1068         {
1069             wxASSERT_MSG( 1 , wxT("unkown path beginning") ) ;
1070         }
1071         while (*s)
1072         {
1073             if (*s == '/' || *s == '\\')
1074             {
1075                 // convert any back-directory situations
1076                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
1077                 {
1078                     *s = ':';
1079                     memmove( s+1 , s+3 ,(wxStrlen( s+3 ) + 1)*sizeof(wxChar) ) ;
1080                 }
1081                 else
1082                     *s = ':';
1083             }
1084             s++ ;
1085         }
1086     }
1087     return wxString(sMacFileNameConversion) ;
1088 }
1089
1090 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
1091 {
1092     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
1093 }
1094
1095 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
1096 {
1097     wxString var = wxUnix2MacFilename( path ) ;
1098     wxMacFilename2FSSpec( var , spec ) ;
1099 }
1100 #endif // ! __DARWIN__
1101
1102 #endif // __WXMAC__
1103
1104 void
1105 wxDos2UnixFilename (wxChar *s)
1106 {
1107   if (s)
1108     while (*s)
1109       {
1110         if (*s == _T('\\'))
1111           *s = _T('/');
1112 #ifdef __WXMSW__
1113         else
1114           *s = wxTolower (*s);        // Case INDEPENDENT
1115 #endif
1116         s++;
1117       }
1118 }
1119
1120 void
1121 #if defined(__WXMSW__) || defined(__WXPM__)
1122 wxUnix2DosFilename (wxChar *s)
1123 #else
1124 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1125 #endif
1126 {
1127 // Yes, I really mean this to happen under DOS only! JACS
1128 #if defined(__WXMSW__) || defined(__WXPM__)
1129   if (s)
1130     while (*s)
1131       {
1132         if (*s == wxT('/'))
1133           *s = wxT('\\');
1134         s++;
1135       }
1136 #endif
1137 }
1138
1139 // Concatenate two files to form third
1140 bool
1141 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1142 {
1143   wxString outfile;
1144   if ( !wxGetTempFileName( wxT("cat"), outfile) )
1145       return FALSE;
1146
1147   FILE *fp1 = (FILE *) NULL;
1148   FILE *fp2 = (FILE *) NULL;
1149   FILE *fp3 = (FILE *) NULL;
1150   // Open the inputs and outputs
1151   if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
1152       (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
1153       (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
1154     {
1155       if (fp1)
1156         fclose (fp1);
1157       if (fp2)
1158         fclose (fp2);
1159       if (fp3)
1160         fclose (fp3);
1161       return FALSE;
1162     }
1163
1164   int ch;
1165   while ((ch = getc (fp1)) != EOF)
1166     (void) putc (ch, fp3);
1167   fclose (fp1);
1168
1169   while ((ch = getc (fp2)) != EOF)
1170     (void) putc (ch, fp3);
1171   fclose (fp2);
1172
1173   fclose (fp3);
1174   bool result = wxRenameFile(outfile, file3);
1175   return result;
1176 }
1177
1178 // Copy files
1179 bool
1180 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1181 {
1182 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1183     // CopyFile() copies file attributes and modification time too, so use it
1184     // instead of our code if available
1185     //
1186     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1187     if ( !::CopyFile(file1, file2, !overwrite) )
1188     {
1189         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1190                       file1.c_str(), file2.c_str());
1191
1192         return FALSE;
1193     }
1194 #elif defined(__WXPM__)
1195     if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
1196         return FALSE;
1197 #else // !Win32
1198
1199     wxStructStat fbuf;
1200     // get permissions of file1
1201     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1202     {
1203         // the file probably doesn't exist or we haven't the rights to read
1204         // from it anyhow
1205         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1206                       file1.c_str());
1207         return FALSE;
1208     }
1209
1210     // open file1 for reading
1211     wxFile fileIn(file1, wxFile::read);
1212     if ( !fileIn.IsOpened() )
1213         return FALSE;
1214
1215     // remove file2, if it exists. This is needed for creating
1216     // file2 with the correct permissions in the next step
1217     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1218     {
1219         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1220                       file2.c_str());
1221         return FALSE;
1222     }
1223
1224 #ifdef __UNIX__
1225     // reset the umask as we want to create the file with exactly the same
1226     // permissions as the original one
1227     mode_t oldUmask = umask( 0 );
1228 #endif // __UNIX__
1229
1230     // create file2 with the same permissions than file1 and open it for
1231     // writing
1232
1233     wxFile fileOut;
1234     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1235         return FALSE;
1236
1237 #ifdef __UNIX__
1238     /// restore the old umask
1239     umask(oldUmask);
1240 #endif // __UNIX__
1241
1242     // copy contents of file1 to file2
1243     char buf[4096];
1244     size_t count;
1245     for ( ;; )
1246     {
1247         count = fileIn.Read(buf, WXSIZEOF(buf));
1248         if ( fileIn.Error() )
1249             return FALSE;
1250
1251         // end of file?
1252         if ( !count )
1253             break;
1254
1255         if ( fileOut.Write(buf, count) < count )
1256             return FALSE;
1257     }
1258
1259     // we can expect fileIn to be closed successfully, but we should ensure
1260     // that fileOut was closed as some write errors (disk full) might not be
1261     // detected before doing this
1262     if ( !fileIn.Close() || !fileOut.Close() )
1263         return FALSE;
1264
1265 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1266     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1267     // however
1268     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1269     {
1270         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1271                       file2.c_str());
1272         return FALSE;
1273     }
1274 #endif // OS/2 || Mac
1275 #endif // __WXMSW__ && __WIN32__
1276
1277     return TRUE;
1278 }
1279
1280 bool
1281 wxRenameFile (const wxString& file1, const wxString& file2)
1282 {
1283 #ifndef __WXWINCE__
1284     // Normal system call
1285   if ( wxRename (file1, file2) == 0 )
1286     return TRUE;
1287 #endif
1288
1289   // Try to copy
1290   if (wxCopyFile(file1, file2)) {
1291     wxRemoveFile(file1);
1292     return TRUE;
1293   }
1294   // Give up
1295   return FALSE;
1296 }
1297
1298 bool wxRemoveFile(const wxString& file)
1299 {
1300 #if defined(__VISUALC__) \
1301  || defined(__BORLANDC__) \
1302  || defined(__WATCOMC__) \
1303  || defined(__GNUWIN32__)
1304   int res = wxRemove(file);
1305 #elif defined(__WXMAC__)
1306   int res = unlink(wxFNCONV(file));
1307 #else
1308   int res = unlink(OS_FILENAME(file));
1309 #endif
1310
1311   return res == 0;
1312 }
1313
1314 bool wxMkdir(const wxString& dir, int perm)
1315 {
1316 #if defined(__WXMAC__) && !defined(__UNIX__)
1317   return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1318 #else // !Mac
1319     const wxChar *dirname = dir.c_str();
1320
1321     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1322     // for the GNU compiler
1323 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1324   #ifndef MSVCRT
1325     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1326   #else
1327     if ( mkdir(wxFNCONV(dirname)) != 0 )
1328   #endif
1329 #elif defined(__WXPM__)
1330     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1331 #elif defined(__DOS__)
1332   #if defined(__WATCOMC__)
1333     (void)perm;
1334     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1335   #elif defined(__DJGPP__)
1336     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1337   #else
1338     #error "Unsupported DOS compiler!"
1339   #endif
1340 #else  // !MSW, !DOS and !OS/2 VAC++
1341     (void)perm;
1342 #ifdef __WXWINCE__
1343     if ( !CreateDirectory(dirname, NULL) )
1344 #else
1345     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1346 #endif
1347 #endif // !MSW/MSW
1348     {
1349         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1350
1351         return FALSE;
1352     }
1353
1354     return TRUE;
1355 #endif // Mac/!Mac
1356 }
1357
1358 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1359 {
1360 #ifdef __VMS__
1361     return FALSE; //to be changed since rmdir exists in VMS7.x
1362 #elif defined(__WXPM__)
1363     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1364 #else
1365
1366 #ifdef __WXWINCE__
1367     return (CreateDirectory(dir, NULL) != 0);
1368 #else
1369     return (wxRmDir(OS_FILENAME(dir)) == 0);
1370 #endif
1371
1372 #endif
1373 }
1374
1375 // does the path exists? (may have or not '/' or '\\' at the end)
1376 bool wxPathExists(const wxChar *pszPathName)
1377 {
1378     wxString strPath(pszPathName);
1379
1380 #ifdef __WINDOWS__
1381     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1382     // so remove all trailing backslashes from the path - but don't do this for
1383     // the pathes "d:\" (which are different from "d:") nor for just "\"
1384     while ( wxEndsWithPathSeparator(strPath) )
1385     {
1386         size_t len = strPath.length();
1387         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1388             break;
1389
1390         strPath.Truncate(len - 1);
1391     }
1392 #endif // __WINDOWS__
1393
1394 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1395     // stat() can't cope with network paths
1396     DWORD ret = ::GetFileAttributes(strPath);
1397
1398     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1399 #else // !__WIN32__
1400
1401     wxStructStat st;
1402 #ifndef __VISAGECPP__
1403     return wxStat(pszPathName, &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1404 #else
1405     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1406     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1407 #endif
1408
1409 #endif // __WIN32__/!__WIN32__
1410 }
1411
1412 // Get a temporary filename, opening and closing the file.
1413 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1414 {
1415     wxString filename = wxFileName::CreateTempFileName(prefix);
1416     if ( filename.empty() )
1417         return NULL;
1418
1419     if ( buf )
1420         wxStrcpy(buf, filename);
1421     else
1422         buf = MYcopystring(filename);
1423
1424     return buf;
1425 }
1426
1427 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1428 {
1429     buf = wxFileName::CreateTempFileName(prefix);
1430
1431     return !buf.empty();
1432 }
1433
1434 // Get first file name matching given wild card.
1435
1436 static wxDir *gs_dir = NULL;
1437 static wxString gs_dirPath;
1438
1439 wxString wxFindFirstFile(const wxChar *spec, int flags)
1440 {
1441     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1442     if ( gs_dirPath.IsEmpty() )
1443         gs_dirPath = wxT(".");
1444     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1445         gs_dirPath << wxFILE_SEP_PATH;
1446
1447     if (gs_dir)
1448         delete gs_dir;
1449     gs_dir = new wxDir(gs_dirPath);
1450
1451     if ( !gs_dir->IsOpened() )
1452     {
1453         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1454         return wxEmptyString;
1455     }
1456
1457     int dirFlags = 0;
1458     switch (flags)
1459     {
1460         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1461         case wxFILE: dirFlags = wxDIR_FILES; break;
1462         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1463     }
1464
1465     wxString result;
1466     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1467     if ( result.IsEmpty() )
1468     {
1469         wxDELETE(gs_dir);
1470         return result;
1471     }
1472
1473     return gs_dirPath + result;
1474 }
1475
1476 wxString wxFindNextFile()
1477 {
1478     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1479
1480     wxString result;
1481     gs_dir->GetNext(&result);
1482
1483     if ( result.IsEmpty() )
1484     {
1485         wxDELETE(gs_dir);
1486         return result;
1487     }
1488
1489     return gs_dirPath + result;
1490 }
1491
1492
1493 // Get current working directory.
1494 // If buf is NULL, allocates space using new, else
1495 // copies into buf.
1496 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1497 {
1498 #ifdef __WXWINCE__
1499     return NULL;
1500 #else
1501     if ( !buf )
1502     {
1503         buf = new wxChar[sz + 1];
1504     }
1505
1506     bool ok = FALSE;
1507
1508     // for the compilers which have Unicode version of _getcwd(), call it
1509     // directly, for the others call the ANSI version and do the translation
1510 #if !wxUSE_UNICODE
1511     #define cbuf buf
1512 #else // wxUSE_UNICODE
1513     bool needsANSI = TRUE;
1514
1515     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1516         // This is not legal code as the compiler
1517         // is allowed destroy the wxCharBuffer.
1518         // wxCharBuffer c_buffer(sz);
1519         // char *cbuf = (char*)(const char*)c_buffer;
1520         char cbuf[_MAXPATHLEN];
1521     #endif
1522
1523     #ifdef HAVE_WGETCWD
1524         #if wxUSE_UNICODE_MSLU
1525             if ( wxGetOsVersion() != wxWIN95 )
1526         #else
1527             char *cbuf = NULL; // never really used because needsANSI will always be FALSE
1528         #endif
1529             {
1530                 ok = _wgetcwd(buf, sz) != NULL;
1531                 needsANSI = FALSE;
1532             }
1533     #endif
1534
1535     if ( needsANSI )
1536 #endif // wxUSE_UNICODE
1537     {
1538     #if defined(_MSC_VER) || defined(__MINGW32__)
1539         ok = _getcwd(cbuf, sz) != NULL;
1540     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1541         FSSpec cwdSpec ;
1542         FCBPBRec pb;
1543         OSErr error;
1544         Str255  fileName ;
1545         pb.ioNamePtr = (StringPtr) &fileName;
1546         pb.ioVRefNum = 0;
1547         pb.ioRefNum = LMGetCurApRefNum();
1548         pb.ioFCBIndx = 0;
1549         error = PBGetFCBInfoSync(&pb);
1550         if ( error == noErr )
1551         {
1552             cwdSpec.vRefNum = pb.ioFCBVRefNum;
1553             cwdSpec.parID = pb.ioFCBParID;
1554             cwdSpec.name[0] = 0 ;
1555             wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1556                         wxStrcpy( buf , res ) ;
1557             ok = TRUE;
1558         }
1559         else
1560         {
1561             ok = FALSE;
1562         }
1563     #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1564         APIRET rc;
1565         rc = ::DosQueryCurrentDir( 0 // current drive
1566                                   ,cbuf
1567                                   ,(PULONG)&sz
1568                                  );
1569         ok = rc != 0;
1570     #else // !Win32/VC++ !Mac !OS2
1571         ok = getcwd(cbuf, sz) != NULL;
1572     #endif // platform
1573
1574     #if wxUSE_UNICODE && !defined(__WXMAC__)
1575         // finally convert the result to Unicode if needed
1576         wxConvFile.MB2WC(buf, cbuf, sz);
1577     #endif // wxUSE_UNICODE
1578     }
1579
1580     if ( !ok )
1581     {
1582         wxLogSysError(_("Failed to get the working directory"));
1583
1584         // VZ: the old code used to return "." on error which didn't make any
1585         //     sense at all to me - empty string is a better error indicator
1586         //     (NULL might be even better but I'm afraid this could lead to
1587         //     problems with the old code assuming the return is never NULL)
1588         buf[0] = _T('\0');
1589     }
1590     else // ok, but we might need to massage the path into the right format
1591     {
1592 #ifdef __DJGPP__
1593         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1594         //     with / deliminers. We don't like that.
1595         for (wxChar *ch = buf; *ch; ch++)
1596         {
1597             if (*ch == wxT('/'))
1598                 *ch = wxT('\\');
1599         }
1600 #endif // __DJGPP__
1601
1602 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1603 //      he needs Unix as opposed to Win32 pathnames
1604 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1605         // another example of DOS/Unix mix (Cygwin)
1606         wxString pathUnix = buf;
1607         cygwin_conv_to_full_win32_path(pathUnix, buf);
1608 #endif // __CYGWIN__
1609     }
1610
1611     return buf;
1612
1613 #if !wxUSE_UNICODE
1614     #undef cbuf
1615 #endif
1616
1617 #endif
1618     // __WXWINCE__
1619 }
1620
1621 wxString wxGetCwd()
1622 {
1623     wxChar *buffer = new wxChar[_MAXPATHLEN];
1624     wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1625     wxString str( buffer );
1626     delete [] buffer;
1627
1628     return str;
1629 }
1630
1631 bool wxSetWorkingDirectory(const wxString& d)
1632 {
1633 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1634     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1635 #elif defined(__WXPM__)
1636     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1637 #elif defined(__WINDOWS__)
1638
1639 #ifdef __WIN32__
1640 #ifdef __WXWINCE__
1641     // No equivalent in WinCE
1642     return FALSE;
1643 #else
1644     return (bool)(SetCurrentDirectory(d) != 0);
1645 #endif
1646 #else
1647     // Must change drive, too.
1648     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1649     if (isDriveSpec)
1650     {
1651         wxChar firstChar = d[0];
1652
1653         // To upper case
1654         if (firstChar > 90)
1655             firstChar = firstChar - 32;
1656
1657         // To a drive number
1658         unsigned int driveNo = firstChar - 64;
1659         if (driveNo > 0)
1660         {
1661             unsigned int noDrives;
1662             _dos_setdrive(driveNo, &noDrives);
1663         }
1664     }
1665     bool success = (chdir(WXSTRINGCAST d) == 0);
1666
1667     return success;
1668 #endif
1669
1670 #endif
1671 }
1672
1673 // Get the OS directory if appropriate (such as the Windows directory).
1674 // On non-Windows platform, probably just return the empty string.
1675 wxString wxGetOSDirectory()
1676 {
1677 #ifdef __WXWINCE__
1678     return wxString(wxT("\\Windows"));
1679 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1680     wxChar buf[256];
1681     GetWindowsDirectory(buf, 256);
1682     return wxString(buf);
1683 #elif defined(__WXMAC__)
1684     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1685 #else
1686     return wxEmptyString;
1687 #endif
1688 }
1689
1690 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1691 {
1692     size_t len = wxStrlen(pszFileName);
1693
1694     return len && wxIsPathSeparator(pszFileName[len - 1]);
1695 }
1696
1697 // find a file in a list of directories, returns FALSE if not found
1698 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1699 {
1700     // we assume that it's not empty
1701     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1702                  _T("empty file name in wxFindFileInPath"));
1703
1704     // skip path separator in the beginning of the file name if present
1705     if ( wxIsPathSeparator(*pszFile) )
1706         pszFile++;
1707
1708     // copy the path (strtok will modify it)
1709     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1710     wxStrcpy(szPath, pszPath);
1711
1712     wxString strFile;
1713     wxChar *pc, *save_ptr;
1714     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1715           pc != NULL;
1716           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1717     {
1718         // search for the file in this directory
1719         strFile = pc;
1720         if ( !wxEndsWithPathSeparator(pc) )
1721             strFile += wxFILE_SEP_PATH;
1722         strFile += pszFile;
1723
1724         if ( wxFileExists(strFile) ) {
1725             *pStr = strFile;
1726             break;
1727         }
1728     }
1729
1730     // suppress warning about unused variable save_ptr when wxStrtok() is a
1731     // macro which throws away its third argument
1732     save_ptr = pc;
1733
1734     delete [] szPath;
1735
1736     return pc != NULL;  // if TRUE => we breaked from the loop
1737 }
1738
1739 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1740                              wxString *pstrPath,
1741                              wxString *pstrName,
1742                              wxString *pstrExt)
1743 {
1744     // it can be empty, but it shouldn't be NULL
1745     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1746
1747     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1748 }
1749
1750 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1751 {
1752 #ifdef __WXWINCE__
1753     FILETIME creationTime, lastAccessTime, lastWriteTime;
1754     HANDLE fileHandle = ::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
1755         0, FILE_ATTRIBUTE_NORMAL, 0);
1756     if (fileHandle == INVALID_HANDLE_VALUE)
1757         return 0;
1758     else
1759     {
1760         if (GetFileTime(fileHandle, & creationTime, & lastAccessTime, & lastWriteTime))
1761         {
1762             CloseHandle(fileHandle);
1763
1764             wxDateTime dateTime;
1765             FILETIME ftLocal;
1766             if ( !::FileTimeToLocalFileTime(&lastWriteTime, &ftLocal) )
1767             {
1768                 wxLogLastError(_T("FileTimeToLocalFileTime"));
1769             }
1770
1771             SYSTEMTIME st;
1772             if ( !::FileTimeToSystemTime(&ftLocal, &st) )
1773             {
1774                 wxLogLastError(_T("FileTimeToSystemTime"));
1775             }
1776
1777             dateTime.Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
1778                 st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
1779             return dateTime.GetTicks();
1780         }
1781         else
1782             return 0;
1783     }
1784 #else
1785     wxStructStat buf;
1786     wxStat( filename, &buf);
1787
1788     return buf.st_mtime;
1789 #endif
1790 }
1791
1792
1793 //------------------------------------------------------------------------
1794 // wild character routines
1795 //------------------------------------------------------------------------
1796
1797 bool wxIsWild( const wxString& pattern )
1798 {
1799     wxString tmp = pattern;
1800     wxChar *pat = WXSTRINGCAST(tmp);
1801     while (*pat)
1802     {
1803         switch (*pat++)
1804         {
1805         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1806             return TRUE;
1807         case wxT('\\'):
1808             if (!*pat++)
1809                 return FALSE;
1810         }
1811     }
1812     return FALSE;
1813 }
1814
1815 /*
1816 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1817 *
1818 * The match procedure is public domain code (from ircII's reg.c)
1819 */
1820
1821 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1822 {
1823         if (text.empty())
1824         {
1825                 /* Match if both are empty. */
1826                 return pat.empty();
1827         }
1828
1829         const wxChar *m = pat.c_str(),
1830         *n = text.c_str(),
1831         *ma = NULL,
1832         *na = NULL,
1833         *mp = NULL,
1834         *np = NULL;
1835         int just = 0,
1836         pcount = 0,
1837         acount = 0,
1838         count = 0;
1839
1840         if (dot_special && (*n == wxT('.')))
1841         {
1842                 /* Never match so that hidden Unix files
1843                  * are never found. */
1844                 return FALSE;
1845         }
1846
1847         for (;;)
1848         {
1849                 if (*m == wxT('*'))
1850                 {
1851                         ma = ++m;
1852                         na = n;
1853                         just = 1;
1854                         mp = NULL;
1855                         acount = count;
1856                 }
1857                 else if (*m == wxT('?'))
1858                 {
1859                         m++;
1860                         if (!*n++)
1861                         return FALSE;
1862                 }
1863                 else
1864                 {
1865                         if (*m == wxT('\\'))
1866                         {
1867                                 m++;
1868                                 /* Quoting "nothing" is a bad thing */
1869                                 if (!*m)
1870                                 return FALSE;
1871                         }
1872                         if (!*m)
1873                         {
1874                                 /*
1875                                 * If we are out of both strings or we just
1876                                 * saw a wildcard, then we can say we have a
1877                                 * match
1878                                 */
1879                                 if (!*n)
1880                                 return TRUE;
1881                                 if (just)
1882                                 return TRUE;
1883                                 just = 0;
1884                                 goto not_matched;
1885                         }
1886                         /*
1887                         * We could check for *n == NULL at this point, but
1888                         * since it's more common to have a character there,
1889                         * check to see if they match first (m and n) and
1890                         * then if they don't match, THEN we can check for
1891                         * the NULL of n
1892                         */
1893                         just = 0;
1894                         if (*m == *n)
1895                         {
1896                                 m++;
1897                                 if (*n == wxT(' '))
1898                                 mp = NULL;
1899                                 count++;
1900                                 n++;
1901                         }
1902                         else
1903                         {
1904
1905                                 not_matched:
1906
1907                                 /*
1908                                 * If there are no more characters in the
1909                                 * string, but we still need to find another
1910                                 * character (*m != NULL), then it will be
1911                                 * impossible to match it
1912                                 */
1913                                 if (!*n)
1914                                 return FALSE;
1915                                 if (mp)
1916                                 {
1917                                         m = mp;
1918                                         if (*np == wxT(' '))
1919                                         {
1920                                                 mp = NULL;
1921                                                 goto check_percent;
1922                                         }
1923                                         n = ++np;
1924                                         count = pcount;
1925                                 }
1926                                 else
1927                                 check_percent:
1928
1929                                 if (ma)
1930                                 {
1931                                         m = ma;
1932                                         n = ++na;
1933                                         count = acount;
1934                                 }
1935                                 else
1936                                 return FALSE;
1937                         }
1938                 }
1939         }
1940 }
1941
1942
1943 #ifdef __VISUALC__
1944     #pragma warning(default:4706)   // assignment within conditional expression
1945 #endif // VC++