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 #ifdef __GNUG__
  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 #include <time.h>
  58
  59 #ifndef __MWERKS__
  60     #include <sys/types.h>
  61     #include <sys/stat.h>
  62 #else
  63     #include <stat.h>
  64     #include <unistd.h>
  65     #include <unix.h>
  66 #endif
  67
  68 #ifdef __UNIX__
  69     #include <unistd.h>
  70     #include <dirent.h>
  71     #include <fcntl.h>
  72 #endif
  73
  74 #ifdef __WXPM__
  75     #include <process.h>
  76     #include "wx/os2/private.h"
  77 #endif
  78 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  79 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
  80     #include <direct.h>
  81     #include <dos.h>
  82     #include <io.h>
  83 #endif // __WINDOWS__
  84 #endif // native Win compiler
  85
  86 #if defined(__DOS__)
  87     #ifdef __WATCOMC__
  88         #include <direct.h>
  89         #include <dos.h>
  90         #include <io.h>
  91     #endif
  92     #ifdef __DJGPP__
  93         #include <unistd.h>
  94     #endif
  95 #endif
  96
  97 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  98                     // this (3.1 I believe) and how to test for it.
  99                     // If this works for Borland 4.0 as well, then no worries.
 100     #include <dir.h>
 101 #endif
 102
 103 #ifdef __SALFORDC__
 104     #include <dir.h>
 105     #include <unix.h>
 106 #endif
 107
 108 #include "wx/log.h"
 109
 110 // No, Cygwin doesn't appear to have fnmatch.h after all.
 111 #if defined(HAVE_FNMATCH_H)
 112     #include "fnmatch.h"
 113 #endif
 114
 115 #ifdef __WINDOWS__
 116     #include <windows.h>
 117     #include "wx/msw/mslu.h"
 118
 119     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
 120     //
 121     // note that it must be included after <windows.h>
 122     #ifdef __GNUWIN32__
 123         #ifdef __CYGWIN__
 124             #include <sys/cygwin.h>
 125         #endif
 126
 127         #ifndef __TWIN32__
 128             #include <sys/unistd.h>
 129         #endif
 130     #endif // __GNUWIN32__
 131 #endif // __WINDOWS__
 132
 133 // TODO: Borland probably has _wgetcwd as well?
 134 #ifdef _MSC_VER
 135     #define HAVE_WGETCWD
 136 #endif
 137
 138 // ----------------------------------------------------------------------------
 139 // constants
 140 // ----------------------------------------------------------------------------
 141
 142 #ifndef _MAXPATHLEN
 143     #define _MAXPATHLEN 1024
 144 #endif
 145
 146 #ifdef __WXMAC__
 147 #  ifdef __DARWIN__
 148 #    include "MoreFilesX.h"
 149 #  else
 150 #    include "MoreFiles.h"
 151 #    include "MoreFilesExtras.h"
 152 #    include "FullPath.h"
 153 #    include "FSpCompat.h"
 154 #  endif
 155 #endif
 156
 157 // ----------------------------------------------------------------------------
 158 // private globals
 159 // ----------------------------------------------------------------------------
 160
 161 // MT-FIXME: get rid of this horror and all code using it
 162 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 163
 164 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 165 //
 166 // VisualAge C++ V4.0 cannot have any external linkage const decs
 167 // in headers included by more than one primary source
 168 //
 169 const off_t wxInvalidOffset = (off_t)-1;
 170 #endif
 171
 172 // ----------------------------------------------------------------------------
 173 // macros
 174 // ----------------------------------------------------------------------------
 175
 176 // we need to translate Mac filenames before passing them to OS functions
 177 #define OS_FILENAME(s) (s.fn_str())
 178
 179 // ============================================================================
 180 // implementation
 181 // ============================================================================
 182
 183 #ifdef wxNEED_WX_UNISTD_H
 184
 185 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 186 {
 187     return stat( wxConvFile.cWX2MB( file_name ), buf );
 188 }
 189
 190 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 191 {
 192     return access( wxConvFile.cWX2MB( pathname ), mode );
 193 }
 194
 195 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 196 {
 197     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 198 }
 199
 200 #endif
 201    // wxNEED_WX_UNISTD_H
 202
 203 // ----------------------------------------------------------------------------
 204 // wxPathList
 205 // ----------------------------------------------------------------------------
 206
 207 IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 208
 209 void wxPathList::Add (const wxString& path)
 210 {
 211     wxStringList::Add (WXSTRINGCAST path);
 212 }
 213
 214 // Add paths e.g. from the PATH environment variable
 215 void wxPathList::AddEnvList (const wxString& envVariable)
 216 {
 217     static const wxChar PATH_TOKS[] =
 218 #ifdef __WINDOWS__
 219         /*
 220         The space has been removed from the tokenizers, otherwise a
 221         path such as "C:\Program Files" would be split into 2 paths:
 222         "C:\Program" and "Files"
 223         */
 224 //        wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 225         wxT(";"); // Don't seperate with colon in DOS (used for drive)
 226 #else
 227         wxT(" :;");
 228 #endif
 229
 230     wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 231     if (val && *val)
 232     {
 233         wxChar *s = copystring (val);
 234         wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 235
 236         if (token)
 237         {
 238             Add(token);
 239             while (token)
 240             {
 241                 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
 242                     != NULL )
 243                 {
 244                     Add(token);
 245                 }
 246             }
 247         }
 248
 249         // suppress warning about unused variable save_ptr when wxStrtok() is a
 250         // macro which throws away its third argument
 251         save_ptr = token;
 252
 253         delete [] s;
 254     }
 255 }
 256
 257 // Given a full filename (with path), ensure that that file can
 258 // be accessed again USING FILENAME ONLY by adding the path
 259 // to the list if not already there.
 260 void wxPathList::EnsureFileAccessible (const wxString& path)
 261 {
 262     wxString path_only(wxPathOnly(path));
 263     if ( !path_only.IsEmpty() )
 264     {
 265         if ( !Member(path_only) )
 266             Add(path_only);
 267     }
 268 }
 269
 270 bool wxPathList::Member (const wxString& path)
 271 {
 272   for (wxStringList::Node *node = GetFirst(); node; node = node->GetNext())
 273   {
 274       wxString path2( node->GetData() );
 275       if (
 276 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 277       // Case INDEPENDENT
 278           path.CompareTo (path2, wxString::ignoreCase) == 0
 279 #else
 280       // Case sensitive File System
 281           path.CompareTo (path2) == 0
 282 #endif
 283         )
 284         return TRUE;
 285   }
 286   return FALSE;
 287 }
 288
 289 wxString wxPathList::FindValidPath (const wxString& file)
 290 {
 291   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 292     return wxString(wxFileFunctionsBuffer);
 293
 294   wxChar buf[_MAXPATHLEN];
 295   wxStrcpy(buf, wxFileFunctionsBuffer);
 296
 297   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 298   filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 299
 300   for (wxStringList::Node *node = GetFirst(); node; node = node->GetNext())
 301     {
 302       wxChar *path = node->GetData();
 303       wxStrcpy (wxFileFunctionsBuffer, path);
 304       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 305       if (ch != wxT('\\') && ch != wxT('/'))
 306         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 307       wxStrcat (wxFileFunctionsBuffer, filename);
 308 #ifdef __WINDOWS__
 309       wxUnix2DosFilename (wxFileFunctionsBuffer);
 310 #endif
 311       if (wxFileExists (wxFileFunctionsBuffer))
 312       {
 313         return wxString(wxFileFunctionsBuffer);        // Found!
 314       }
 315     }                                // for()
 316
 317   return wxEmptyString;                    // Not found
 318 }
 319
 320 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 321 {
 322     wxString f = FindValidPath(file);
 323     if ( wxIsAbsolutePath(f) )
 324         return f;
 325
 326     wxString buf;
 327     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 328
 329     if ( !wxEndsWithPathSeparator(buf) )
 330     {
 331         buf += wxFILE_SEP_PATH;
 332     }
 333     buf += f;
 334
 335     return buf;
 336 }
 337
 338 bool
 339 wxFileExists (const wxString& filename)
 340 {
 341     // we must use GetFileAttributes() instead of the ANSI C functions because
 342     // it can cope with network (UNC) paths unlike them
 343 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 344     DWORD ret = ::GetFileAttributes(filename);
 345
 346     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 347 #else // !__WIN32__
 348     wxStructStat st;
 349     return wxStat(filename, &st) == 0 && (st.st_mode & S_IFREG);
 350 #endif // __WIN32__/!__WIN32__
 351 }
 352
 353 bool
 354 wxIsAbsolutePath (const wxString& filename)
 355 {
 356     if (filename != wxT(""))
 357     {
 358 #if defined(__WXMAC__) && !defined(__DARWIN__)
 359         // Classic or Carbon CodeWarrior like
 360         // Carbon with Apple DevTools is Unix like
 361
 362         // This seems wrong to me, but there is no fix. since
 363         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 364         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 365         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 366             return TRUE ;
 367 #else
 368         // Unix like or Windows
 369         if (filename[0] == wxT('/'))
 370             return TRUE;
 371 #endif
 372 #ifdef __VMS__
 373         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 374             return TRUE;
 375 #endif
 376 #ifdef __WINDOWS__
 377         // MSDOS like
 378         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 379             return TRUE;
 380 #endif
 381     }
 382     return FALSE ;
 383 }
 384
 385 /*
 386  * Strip off any extension (dot something) from end of file,
 387  * IF one exists. Inserts zero into buffer.
 388  *
 389  */
 390
 391 void wxStripExtension(wxChar *buffer)
 392 {
 393   int len = wxStrlen(buffer);
 394   int i = len-1;
 395   while (i > 0)
 396   {
 397     if (buffer[i] == wxT('.'))
 398     {
 399       buffer[i] = 0;
 400       break;
 401     }
 402     i --;
 403   }
 404 }
 405
 406 void wxStripExtension(wxString& buffer)
 407 {
 408   size_t len = buffer.Length();
 409   size_t i = len-1;
 410   while (i > 0)
 411   {
 412     if (buffer.GetChar(i) == wxT('.'))
 413     {
 414       buffer = buffer.Left(i);
 415       break;
 416     }
 417     i --;
 418   }
 419 }
 420
 421 // Destructive removal of /./ and /../ stuff
 422 wxChar *wxRealPath (wxChar *path)
 423 {
 424 #ifdef __WXMSW__
 425   static const wxChar SEP = wxT('\\');
 426   wxUnix2DosFilename(path);
 427 #else
 428   static const wxChar SEP = wxT('/');
 429 #endif
 430   if (path[0] && path[1]) {
 431     /* MATTHEW: special case "/./x" */
 432     wxChar *p;
 433     if (path[2] == SEP && path[1] == wxT('.'))
 434       p = &path[0];
 435     else
 436       p = &path[2];
 437     for (; *p; p++)
 438       {
 439         if (*p == SEP)
 440           {
 441             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 442               {
 443                 wxChar *q;
 444                 for (q = p - 1; q >= path && *q != SEP; q--)
 445                 {
 446                     // Empty
 447                 }
 448
 449                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 450                     && (q - 1 <= path || q[-1] != SEP))
 451                   {
 452                     wxStrcpy (q, p + 3);
 453                     if (path[0] == wxT('\0'))
 454                       {
 455                         path[0] = SEP;
 456                         path[1] = wxT('\0');
 457                       }
 458 #ifdef __WXMSW__
 459                     /* Check that path[2] is NULL! */
 460                     else if (path[1] == wxT(':') && !path[2])
 461                       {
 462                         path[2] = SEP;
 463                         path[3] = wxT('\0');
 464                       }
 465 #endif
 466                     p = q - 1;
 467                   }
 468               }
 469             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 470               wxStrcpy (p, p + 2);
 471           }
 472       }
 473   }
 474   return path;
 475 }
 476
 477 // Must be destroyed
 478 wxChar *wxCopyAbsolutePath(const wxString& filename)
 479 {
 480   if (filename == wxT(""))
 481     return (wxChar *) NULL;
 482
 483   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 484     wxChar  buf[_MAXPATHLEN];
 485     buf[0] = wxT('\0');
 486     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 487     wxChar ch = buf[wxStrlen(buf) - 1];
 488 #ifdef __WXMSW__
 489     if (ch != wxT('\\') && ch != wxT('/'))
 490         wxStrcat(buf, wxT("\\"));
 491 #else
 492     if (ch != wxT('/'))
 493         wxStrcat(buf, wxT("/"));
 494 #endif
 495     wxStrcat(buf, wxFileFunctionsBuffer);
 496     return copystring( wxRealPath(buf) );
 497   }
 498   return copystring( wxFileFunctionsBuffer );
 499 }
 500
 501 /*-
 502  Handles:
 503    ~/ => home dir
 504    ~user/ => user's home dir
 505    If the environment variable a = "foo" and b = "bar" then:
 506    Unix:
 507         $a        =>        foo
 508         $a$b        =>        foobar
 509         $a.c        =>        foo.c
 510         xxx$a        =>        xxxfoo
 511         ${a}!        =>        foo!
 512         $(b)!        =>        bar!
 513         \$a        =>        \$a
 514    MSDOS:
 515         $a        ==>        $a
 516         $(a)        ==>        foo
 517         $(a)$b        ==>        foo$b
 518         $(a)$(b)==>        foobar
 519         test.$$        ==>        test.$$
 520  */
 521
 522 /* input name in name, pathname output to buf. */
 523
 524 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 525 {
 526     register wxChar *d, *s, *nm;
 527     wxChar          lnm[_MAXPATHLEN];
 528     int             q;
 529
 530     // Some compilers don't like this line.
 531 //    const wxChar    trimchars[] = wxT("\n \t");
 532
 533     wxChar      trimchars[4];
 534     trimchars[0] = wxT('\n');
 535     trimchars[1] = wxT(' ');
 536     trimchars[2] = wxT('\t');
 537     trimchars[3] = 0;
 538
 539 #ifdef __WXMSW__
 540      const wxChar     SEP = wxT('\\');
 541 #else
 542      const wxChar     SEP = wxT('/');
 543 #endif
 544     buf[0] = wxT('\0');
 545     if (name == NULL || *name == wxT('\0'))
 546         return buf;
 547     nm = copystring(name); // Make a scratch copy
 548     wxChar *nm_tmp = nm;
 549
 550     /* Skip leading whitespace and cr */
 551     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 552         nm++;
 553     /* And strip off trailing whitespace and cr */
 554     s = nm + (q = wxStrlen(nm)) - 1;
 555     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 556         *s = wxT('\0');
 557
 558     s = nm;
 559     d = lnm;
 560 #ifdef __WXMSW__
 561     q = FALSE;
 562 #else
 563     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 564 #endif
 565
 566     /* Expand inline environment variables */
 567 #ifdef __VISAGECPP__
 568     while (*d)
 569     {
 570       *d++ = *s;
 571       if(*s == wxT('\\'))
 572       {
 573         *(d - 1) = *++s;
 574         if (*d)
 575         {
 576           s++;
 577           continue;
 578         }
 579         else
 580            break;
 581       }
 582       else
 583 #else
 584     while ((*d++ = *s) != 0) {
 585 #  ifndef __WXMSW__
 586         if (*s == wxT('\\')) {
 587             if ((*(d - 1) = *++s)) {
 588                 s++;
 589                 continue;
 590             } else
 591                 break;
 592         } else
 593 #  endif
 594 #endif
 595 #ifdef __WXMSW__
 596         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 597 #else
 598         if (*s++ == wxT('$'))
 599 #endif
 600         {
 601             register wxChar  *start = d;
 602             register int     braces = (*s == wxT('{') || *s == wxT('('));
 603             register wxChar  *value;
 604             while ((*d++ = *s) != 0)
 605                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 606                     break;
 607                 else
 608                     s++;
 609             *--d = 0;
 610             value = wxGetenv(braces ? start + 1 : start);
 611             if (value) {
 612                 for ((d = start - 1); (*d++ = *value++) != 0;)
 613                 {
 614                     // Empty
 615                 }
 616
 617                 d--;
 618                 if (braces && *s)
 619                     s++;
 620             }
 621         }
 622     }
 623
 624     /* Expand ~ and ~user */
 625     nm = lnm;
 626     if (nm[0] == wxT('~') && !q)
 627     {
 628         /* prefix ~ */
 629         if (nm[1] == SEP || nm[1] == 0)
 630         {        /* ~/filename */
 631         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 632             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 633                 if (*++nm)
 634                     nm++;
 635             }
 636         } else
 637         {                /* ~user/filename */
 638             register wxChar  *nnm;
 639             register wxChar  *home;
 640             for (s = nm; *s && *s != SEP; s++)
 641             {
 642                 // Empty
 643             }
 644             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 645             was_sep = (*s == SEP);
 646             nnm = *s ? s + 1 : s;
 647             *s = 0;
 648         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 649             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 650                if (was_sep) /* replace only if it was there: */
 651                    *s = SEP;
 652                 s = NULL;
 653             } else {
 654                 nm = nnm;
 655                 s = home;
 656             }
 657         }
 658     }
 659
 660     d = buf;
 661     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 662         /* Copy home dir */
 663         while (wxT('\0') != (*d++ = *s++))
 664           /* loop */;
 665         // Handle root home
 666         if (d - 1 > buf && *(d - 2) != SEP)
 667           *(d - 1) = SEP;
 668     }
 669     s = nm;
 670     while ((*d++ = *s++) != 0)
 671     {
 672         // Empty
 673     }
 674     delete[] nm_tmp; // clean up alloc
 675     /* Now clean up the buffer */
 676     return wxRealPath(buf);
 677 }
 678
 679 /* Contract Paths to be build upon an environment variable
 680    component:
 681
 682    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 683
 684    The call wxExpandPath can convert these back!
 685  */
 686 wxChar *
 687 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 688 {
 689   static wxChar dest[_MAXPATHLEN];
 690
 691   if (filename == wxT(""))
 692     return (wxChar *) NULL;
 693
 694   wxStrcpy (dest, WXSTRINGCAST filename);
 695 #ifdef __WXMSW__
 696   wxUnix2DosFilename(dest);
 697 #endif
 698
 699   // Handle environment
 700   const wxChar *val = (const wxChar *) NULL;
 701   wxChar *tcp = (wxChar *) NULL;
 702   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 703      (tcp = wxStrstr (dest, val)) != NULL)
 704     {
 705         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 706         *tcp++ = wxT('$');
 707         *tcp++ = wxT('{');
 708         wxStrcpy (tcp, WXSTRINGCAST envname);
 709         wxStrcat (tcp, wxT("}"));
 710         wxStrcat (tcp, wxFileFunctionsBuffer);
 711     }
 712
 713   // Handle User's home (ignore root homes!)
 714   size_t len = 0;
 715   if ((val = wxGetUserHome (user)) != NULL &&
 716       (len = wxStrlen(val)) > 2 &&
 717       wxStrncmp(dest, val, len) == 0)
 718     {
 719       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 720       if (user != wxT(""))
 721              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 722       wxStrcat(wxFileFunctionsBuffer, dest + len);
 723       wxStrcpy (dest, wxFileFunctionsBuffer);
 724     }
 725
 726   return dest;
 727 }
 728
 729 // Return just the filename, not the path (basename)
 730 wxChar *wxFileNameFromPath (wxChar *path)
 731 {
 732     wxString p = path;
 733     wxString n = wxFileNameFromPath(p);
 734
 735     return path + p.length() - n.length();
 736 }
 737
 738 wxString wxFileNameFromPath (const wxString& path)
 739 {
 740     wxString name, ext;
 741     wxFileName::SplitPath(path, NULL, &name, &ext);
 742
 743     wxString fullname = name;
 744     if ( !ext.empty() )
 745     {
 746         fullname << wxFILE_SEP_EXT << ext;
 747     }
 748
 749     return fullname;
 750 }
 751
 752 // Return just the directory, or NULL if no directory
 753 wxChar *
 754 wxPathOnly (wxChar *path)
 755 {
 756     if (path && *path)
 757     {
 758         static wxChar buf[_MAXPATHLEN];
 759
 760         // Local copy
 761         wxStrcpy (buf, path);
 762
 763         int l = wxStrlen(path);
 764         int i = l - 1;
 765
 766         // Search backward for a backward or forward slash
 767         while (i > -1)
 768         {
 769 #if defined(__WXMAC__) && !defined(__DARWIN__)
 770             // Classic or Carbon CodeWarrior like
 771             // Carbon with Apple DevTools is Unix like
 772             if (path[i] == wxT(':') )
 773             {
 774                 buf[i] = 0;
 775                 return buf;
 776             }
 777 #else
 778             // Unix like or Windows
 779             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 780             {
 781                 buf[i] = 0;
 782                 return buf;
 783             }
 784 #endif
 785 #ifdef __VMS__
 786             if (path[i] == wxT(']'))
 787             {
 788                 buf[i+1] = 0;
 789                 return buf;
 790             }
 791 #endif
 792             i --;
 793         }
 794
 795 #if defined(__WXMSW__) || defined(__WXPM__)
 796         // Try Drive specifier
 797         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 798         {
 799             // A:junk --> A:. (since A:.\junk Not A:\junk)
 800             buf[2] = wxT('.');
 801             buf[3] = wxT('\0');
 802             return buf;
 803         }
 804 #endif
 805     }
 806     return (wxChar *) NULL;
 807 }
 808
 809 // Return just the directory, or NULL if no directory
 810 wxString wxPathOnly (const wxString& path)
 811 {
 812     if (path != wxT(""))
 813     {
 814         wxChar buf[_MAXPATHLEN];
 815
 816         // Local copy
 817         wxStrcpy (buf, WXSTRINGCAST path);
 818
 819         int l = path.Length();
 820         int i = l - 1;
 821
 822         // Search backward for a backward or forward slash
 823         while (i > -1)
 824         {
 825 #if defined(__WXMAC__) && !defined(__DARWIN__)
 826             // Classic or Carbon CodeWarrior like
 827             // Carbon with Apple DevTools is Unix like
 828             if (path[i] == wxT(':') )
 829             {
 830                 buf[i] = 0;
 831                 return wxString(buf);
 832             }
 833 #else
 834             // Unix like or Windows
 835             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 836             {
 837                 buf[i] = 0;
 838                 return wxString(buf);
 839             }
 840 #endif
 841 #ifdef __VMS__
 842             if (path[i] == wxT(']'))
 843             {
 844                 buf[i+1] = 0;
 845                 return wxString(buf);
 846             }
 847 #endif
 848             i --;
 849         }
 850
 851 #if defined(__WXMSW__) || defined(__WXPM__)
 852         // Try Drive specifier
 853         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 854         {
 855             // A:junk --> A:. (since A:.\junk Not A:\junk)
 856             buf[2] = wxT('.');
 857             buf[3] = wxT('\0');
 858             return wxString(buf);
 859         }
 860 #endif
 861     }
 862     return wxString(wxT(""));
 863 }
 864
 865 // Utility for converting delimiters in DOS filenames to UNIX style
 866 // and back again - or we get nasty problems with delimiters.
 867 // Also, convert to lower case, since case is significant in UNIX.
 868
 869 #if defined(__WXMAC__)
 870 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 871 {
 872 #ifdef __DARWIN__
 873     int         i;
 874     int         j;
 875     OSErr       theErr;
 876     OSStatus    theStatus;
 877     Boolean     isDirectory = FALSE;
 878     Str255    theParentPath = "\p";
 879     FSSpec      theParentSpec;
 880     FSRef       theParentRef;
 881     char        theFileName[FILENAME_MAX];
 882     char        thePath[FILENAME_MAX];
 883
 884     strcpy(thePath, "");
 885
 886     // GD: Separate file name from path and make a FSRef to the parent
 887     //     directory. This is necessary since FSRefs cannot reference files
 888     //     that have not yet been created.
 889     //     Based on example code from Apple Technical Note TN2022
 890     //       http://developer.apple.com/technotes/tn/tn2022.html
 891
 892     // check whether we are converting a directory
 893     isDirectory = ((spec->name)[spec->name[0]] == ':');
 894     // count length of file name
 895     for (i = spec->name[0] - (isDirectory ? 1 : 0); ((spec->name[i] != ':') && (i > 0)); i--);
 896     // copy file name
 897     //   prepend path separator since it will later be appended to the path
 898     theFileName[0] = wxFILE_SEP_PATH;
 899     for (j = i + 1; j <= spec->name[0] - (isDirectory ? 1 : 0); j++) {
 900         theFileName[j - i] = spec->name[j];
 901     }
 902     theFileName[j - i] = '\0';
 903     // copy path if any
 904     for (j = 1; j <= i; j++) {
 905         theParentPath[++theParentPath[0]] = spec->name[j];
 906     }
 907     theErr = FSMakeFSSpec(spec->vRefNum, spec->parID, theParentPath, &theParentSpec);
 908     if (theErr == noErr) {
 909         // convert the FSSpec to an FSRef
 910         theErr = FSpMakeFSRef(&theParentSpec, &theParentRef);
 911     }
 912     if (theErr == noErr) {
 913         // get the POSIX path associated with the FSRef
 914         theStatus = FSRefMakePath(&theParentRef,
 915                                   (UInt8 *)thePath, sizeof(thePath));
 916     }
 917     if (theStatus == noErr) {
 918         // append file name to path
 919         //   includes previously prepended path separator
 920         strcat(thePath, theFileName);
 921     }
 922
 923     // create path string for return value
 924     wxString result( thePath ) ;
 925 #else
 926     Handle    myPath ;
 927     short     length ;
 928
 929     // get length of path and allocate handle
 930     FSpGetFullPath( spec , &length , &myPath ) ;
 931     ::SetHandleSize( myPath , length + 1 ) ;
 932     ::HLock( myPath ) ;
 933     (*myPath)[length] = 0 ;
 934     if ((length > 0) && ((*myPath)[length-1] == ':'))
 935         (*myPath)[length-1] = 0 ;
 936
 937     // create path string for return value
 938     wxString result( (char*) *myPath ) ;
 939
 940     // free allocated handle
 941     ::HUnlock( myPath ) ;
 942     ::DisposeHandle( myPath ) ;
 943 #endif
 944
 945     return result ;
 946 }
 947 #ifndef __DARWIN__
 948 // Mac file names are POSIX (Unix style) under Darwin
 949 // therefore the conversion functions below are not needed
 950
 951 static char sMacFileNameConversion[ 1000 ] ;
 952
 953 #endif
 954 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 955 {
 956     OSStatus err = noErr ;
 957 #ifdef __DARWIN__
 958     FSRef theRef;
 959
 960     // get the FSRef associated with the POSIX path
 961     err = FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
 962     // convert the FSRef to an FSSpec
 963     err = FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
 964 #else
 965     if ( strchr( path , ':' ) == NULL )
 966     {
 967         // try whether it is a volume / or a mounted volume
 968         strncpy( sMacFileNameConversion , path , 1000 ) ;
 969         sMacFileNameConversion[998] = 0 ;
 970         strcat( sMacFileNameConversion , ":" ) ;
 971         err = FSpLocationFromFullPath( strlen(sMacFileNameConversion) , sMacFileNameConversion , spec ) ;
 972     }
 973     else
 974     {
 975         err = FSpLocationFromFullPath( strlen(path) , path , spec ) ;
 976     }
 977 #endif
 978 }
 979
 980 #ifndef __DARWIN__
 981
 982 wxString wxMac2UnixFilename (const char *str)
 983 {
 984     char *s = sMacFileNameConversion ;
 985     strcpy( s , str ) ;
 986     if (s)
 987     {
 988         memmove( s+1 , s ,strlen( s ) + 1) ;
 989         if ( *s == ':' )
 990             *s = '.' ;
 991         else
 992             *s = '/' ;
 993
 994         while (*s)
 995         {
 996             if (*s == ':')
 997                 *s = '/';
 998             else
 999                 *s = wxTolower(*s);        // Case INDEPENDENT
1000             s++;
1001         }
1002     }
1003     return wxString(sMacFileNameConversion) ;
1004 }
1005
1006 wxString wxUnix2MacFilename (const char *str)
1007 {
1008     char *s = sMacFileNameConversion ;
1009     strcpy( s , str ) ;
1010     if (s)
1011     {
1012         if ( *s == '.' )
1013         {
1014             // relative path , since it goes on with slash which is translated to a :
1015             memmove( s , s+1 ,strlen( s ) ) ;
1016         }
1017         else if ( *s == '/' )
1018         {
1019             // absolute path -> on mac just start with the drive name
1020             memmove( s , s+1 ,strlen( s ) ) ;
1021         }
1022         else
1023         {
1024             wxASSERT_MSG( 1 , "unkown path beginning" ) ;
1025         }
1026         while (*s)
1027         {
1028             if (*s == '/' || *s == '\\')
1029             {
1030                 // convert any back-directory situations
1031                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
1032                 {
1033                     *s = ':';
1034                     memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
1035                 }
1036                 else
1037                     *s = ':';
1038             }
1039             s++ ;
1040         }
1041     }
1042     return wxString (sMacFileNameConversion) ;
1043 }
1044
1045 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
1046 {
1047     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
1048 }
1049
1050 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
1051 {
1052     wxString var = wxUnix2MacFilename( path ) ;
1053     wxMacFilename2FSSpec( var , spec ) ;
1054 }
1055 #endif // ! __DARWIN__
1056
1057 #endif // __WXMAC__
1058
1059 void
1060 wxDos2UnixFilename (char *s)
1061 {
1062   if (s)
1063     while (*s)
1064       {
1065         if (*s == '\\')
1066           *s = '/';
1067 #ifdef __WXMSW__
1068         else
1069           *s = wxTolower (*s);        // Case INDEPENDENT
1070 #endif
1071         s++;
1072       }
1073 }
1074
1075 void
1076 #if defined(__WXMSW__) || defined(__WXPM__)
1077 wxUnix2DosFilename (wxChar *s)
1078 #else
1079 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1080 #endif
1081 {
1082 // Yes, I really mean this to happen under DOS only! JACS
1083 #if defined(__WXMSW__) || defined(__WXPM__)
1084   if (s)
1085     while (*s)
1086       {
1087         if (*s == wxT('/'))
1088           *s = wxT('\\');
1089         s++;
1090       }
1091 #endif
1092 }
1093
1094 // Concatenate two files to form third
1095 bool
1096 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1097 {
1098   wxString outfile;
1099   if ( !wxGetTempFileName( wxT("cat"), outfile) )
1100       return FALSE;
1101
1102   FILE *fp1 = (FILE *) NULL;
1103   FILE *fp2 = (FILE *) NULL;
1104   FILE *fp3 = (FILE *) NULL;
1105   // Open the inputs and outputs
1106   if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
1107       (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
1108       (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
1109     {
1110       if (fp1)
1111         fclose (fp1);
1112       if (fp2)
1113         fclose (fp2);
1114       if (fp3)
1115         fclose (fp3);
1116       return FALSE;
1117     }
1118
1119   int ch;
1120   while ((ch = getc (fp1)) != EOF)
1121     (void) putc (ch, fp3);
1122   fclose (fp1);
1123
1124   while ((ch = getc (fp2)) != EOF)
1125     (void) putc (ch, fp3);
1126   fclose (fp2);
1127
1128   fclose (fp3);
1129   bool result = wxRenameFile(outfile, file3);
1130   return result;
1131 }
1132
1133 // Copy files
1134 bool
1135 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1136 {
1137 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1138     // CopyFile() copies file attributes and modification time too, so use it
1139     // instead of our code if available
1140     //
1141     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1142     if ( !::CopyFile(file1, file2, !overwrite) )
1143     {
1144         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1145                       file1.c_str(), file2.c_str());
1146
1147         return FALSE;
1148     }
1149 #elif defined(__WXPM__)
1150     if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
1151         return FALSE;
1152 #else // !Win32
1153
1154     wxStructStat fbuf;
1155     // get permissions of file1
1156     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1157     {
1158         // the file probably doesn't exist or we haven't the rights to read
1159         // from it anyhow
1160         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1161                       file1.c_str());
1162         return FALSE;
1163     }
1164
1165     // open file1 for reading
1166     wxFile fileIn(file1, wxFile::read);
1167     if ( !fileIn.IsOpened() )
1168         return FALSE;
1169
1170     // remove file2, if it exists. This is needed for creating
1171     // file2 with the correct permissions in the next step
1172     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1173     {
1174         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1175                       file2.c_str());
1176         return FALSE;
1177     }
1178
1179 #ifdef __UNIX__
1180     // reset the umask as we want to create the file with exactly the same
1181     // permissions as the original one
1182     mode_t oldUmask = umask( 0 );
1183 #endif // __UNIX__
1184
1185     // create file2 with the same permissions than file1 and open it for
1186     // writing
1187
1188     wxFile fileOut;
1189     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1190         return FALSE;
1191
1192 #ifdef __UNIX__
1193     /// restore the old umask
1194     umask(oldUmask);
1195 #endif // __UNIX__
1196
1197     // copy contents of file1 to file2
1198     char buf[4096];
1199     size_t count;
1200     for ( ;; )
1201     {
1202         count = fileIn.Read(buf, WXSIZEOF(buf));
1203         if ( fileIn.Error() )
1204             return FALSE;
1205
1206         // end of file?
1207         if ( !count )
1208             break;
1209
1210         if ( fileOut.Write(buf, count) < count )
1211             return FALSE;
1212     }
1213
1214     // we can expect fileIn to be closed successfully, but we should ensure
1215     // that fileOut was closed as some write errors (disk full) might not be
1216     // detected before doing this
1217     if ( !fileIn.Close() || !fileOut.Close() )
1218         return FALSE;
1219
1220 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1221     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1222     // however
1223     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1224     {
1225         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1226                       file2.c_str());
1227         return FALSE;
1228     }
1229 #endif // OS/2 || Mac
1230 #endif // __WXMSW__ && __WIN32__
1231
1232     return TRUE;
1233 }
1234
1235 bool
1236 wxRenameFile (const wxString& file1, const wxString& file2)
1237 {
1238   // Normal system call
1239   if ( wxRename (file1, file2) == 0 )
1240     return TRUE;
1241
1242   // Try to copy
1243   if (wxCopyFile(file1, file2)) {
1244     wxRemoveFile(file1);
1245     return TRUE;
1246   }
1247   // Give up
1248   return FALSE;
1249 }
1250
1251 bool wxRemoveFile(const wxString& file)
1252 {
1253 #if defined(__VISUALC__) \
1254  || defined(__BORLANDC__) \
1255  || defined(__WATCOMC__) \
1256  || defined(__GNUWIN32__)
1257   int res = wxRemove(file);
1258 #else
1259   int res = unlink(OS_FILENAME(file));
1260 #endif
1261
1262   return res == 0;
1263 }
1264
1265 bool wxMkdir(const wxString& dir, int perm)
1266 {
1267 #if defined(__WXMAC__) && !defined(__UNIX__)
1268   return (mkdir( dir , 0 ) == 0);
1269 #else // !Mac
1270     const wxChar *dirname = dir.c_str();
1271
1272     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1273     // for the GNU compiler
1274 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1275   #ifndef MSVCRT
1276     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1277   #else
1278     if ( mkdir(wxFNCONV(dirname)) != 0 )
1279   #endif
1280 #elif defined(__WXPM__)
1281     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1282 #elif defined(__DOS__)
1283   #if defined(__WATCOMC__)
1284     (void)perm;
1285     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1286   #elif defined(__DJGPP__)
1287     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1288   #else
1289     #error "Unsupported DOS compiler!"
1290   #endif
1291 #else  // !MSW, !DOS and !OS/2 VAC++
1292     (void)perm;
1293     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1294 #endif // !MSW/MSW
1295     {
1296         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1297
1298         return FALSE;
1299     }
1300
1301     return TRUE;
1302 #endif // Mac/!Mac
1303 }
1304
1305 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1306 {
1307 #ifdef __VMS__
1308   return FALSE; //to be changed since rmdir exists in VMS7.x
1309 #elif defined(__WXPM__)
1310   return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1311 #else
1312
1313 #ifdef __SALFORDC__
1314   return FALSE; // What to do?
1315 #else
1316   return (wxRmDir(OS_FILENAME(dir)) == 0);
1317 #endif
1318
1319 #endif
1320 }
1321
1322 // does the path exists? (may have or not '/' or '\\' at the end)
1323 bool wxPathExists(const wxChar *pszPathName)
1324 {
1325     wxString strPath(pszPathName);
1326
1327 #ifdef __WINDOWS__
1328     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1329     // so remove all trailing backslashes from the path - but don't do this for
1330     // the pathes "d:\" (which are different from "d:") nor for just "\"
1331     while ( wxEndsWithPathSeparator(strPath) )
1332     {
1333         size_t len = strPath.length();
1334         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1335             break;
1336
1337         strPath.Truncate(len - 1);
1338     }
1339 #endif // __WINDOWS__
1340
1341 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1342     // stat() can't cope with network paths
1343     DWORD ret = ::GetFileAttributes(strPath);
1344
1345     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1346 #else // !__WIN32__
1347
1348     wxStructStat st;
1349 #ifndef __VISAGECPP__
1350     return wxStat(pszPathName, &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1351 #else
1352     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1353     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1354 #endif
1355
1356 #endif // __WIN32__/!__WIN32__
1357 }
1358
1359 // Get a temporary filename, opening and closing the file.
1360 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1361 {
1362     wxString filename = wxFileName::CreateTempFileName(prefix);
1363     if ( filename.empty() )
1364         return NULL;
1365
1366     if ( buf )
1367         wxStrcpy(buf, filename);
1368     else
1369         buf = copystring(filename);
1370
1371     return buf;
1372 }
1373
1374 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1375 {
1376     buf = wxFileName::CreateTempFileName(prefix);
1377
1378     return !buf.empty();
1379 }
1380
1381 // Get first file name matching given wild card.
1382
1383 static wxDir *gs_dir = NULL;
1384 static wxString gs_dirPath;
1385
1386 wxString wxFindFirstFile(const wxChar *spec, int flags)
1387 {
1388     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1389     if ( gs_dirPath.IsEmpty() )
1390         gs_dirPath = wxT(".");
1391     if ( gs_dirPath.Last() != wxFILE_SEP_PATH )
1392         gs_dirPath << wxFILE_SEP_PATH;
1393
1394     if (gs_dir)
1395         delete gs_dir;
1396     gs_dir = new wxDir(gs_dirPath);
1397
1398     if ( !gs_dir->IsOpened() )
1399     {
1400         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1401         return wxEmptyString;
1402     }
1403
1404     int dirFlags = 0;
1405     switch (flags)
1406     {
1407         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1408         case wxFILE: dirFlags = wxDIR_FILES; break;
1409         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1410     }
1411
1412     wxString result;
1413     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1414     if ( result.IsEmpty() )
1415     {
1416         wxDELETE(gs_dir);
1417         return result;
1418     }
1419
1420     return gs_dirPath + result;
1421 }
1422
1423 wxString wxFindNextFile()
1424 {
1425     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1426
1427     wxString result;
1428     gs_dir->GetNext(&result);
1429
1430     if ( result.IsEmpty() )
1431     {
1432         wxDELETE(gs_dir);
1433         return result;
1434     }
1435
1436     return gs_dirPath + result;
1437 }
1438
1439
1440 // Get current working directory.
1441 // If buf is NULL, allocates space using new, else
1442 // copies into buf.
1443 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1444 {
1445     if ( !buf )
1446     {
1447         buf = new wxChar[sz + 1];
1448     }
1449
1450     bool ok = FALSE;
1451
1452     // for the compilers which have Unicode version of _getcwd(), call it
1453     // directly, for the others call the ANSI version and do the translation
1454 #if !wxUSE_UNICODE
1455     #define cbuf buf
1456 #else // wxUSE_UNICODE
1457     bool needsANSI = TRUE;
1458
1459     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1460         // This is not legal code as the compiler
1461         // is allowed destroy the wxCharBuffer.
1462         // wxCharBuffer c_buffer(sz);
1463         // char *cbuf = (char*)(const char*)c_buffer;
1464         char cbuf[_MAXPATHLEN];
1465     #endif
1466
1467     #ifdef HAVE_WGETCWD
1468         #if wxUSE_UNICODE_MSLU
1469             if ( wxGetOsVersion() != wxWIN95 )
1470         #else
1471             char *cbuf = NULL; // never really used because needsANSI will always be FALSE
1472         #endif
1473             {
1474                 ok = _wgetcwd(buf, sz) != NULL;
1475                 needsANSI = FALSE;
1476             }
1477     #endif
1478
1479     if ( needsANSI )
1480 #endif // wxUSE_UNICODE
1481     {
1482     #ifdef _MSC_VER
1483         ok = _getcwd(cbuf, sz) != NULL;
1484     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1485         FSSpec cwdSpec ;
1486         FCBPBRec pb;
1487         OSErr error;
1488         Str255  fileName ;
1489         pb.ioNamePtr = (StringPtr) &fileName;
1490         pb.ioVRefNum = 0;
1491         pb.ioRefNum = LMGetCurApRefNum();
1492         pb.ioFCBIndx = 0;
1493         error = PBGetFCBInfoSync(&pb);
1494         if ( error == noErr )
1495         {
1496             cwdSpec.vRefNum = pb.ioFCBVRefNum;
1497             cwdSpec.parID = pb.ioFCBParID;
1498             cwdSpec.name[0] = 0 ;
1499             wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1500
1501             strcpy( cbuf , res ) ;
1502             cbuf[res.length()]=0 ;
1503
1504             ok = TRUE;
1505         }
1506         else
1507         {
1508             ok = FALSE;
1509         }
1510     #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1511         APIRET rc;
1512         rc = ::DosQueryCurrentDir( 0 // current drive
1513                                   ,cbuf
1514                                   ,(PULONG)&sz
1515                                  );
1516         ok = rc != 0;
1517     #else // !Win32/VC++ !Mac !OS2
1518         ok = getcwd(cbuf, sz) != NULL;
1519     #endif // platform
1520
1521     #if wxUSE_UNICODE
1522         // finally convert the result to Unicode if needed
1523         wxConvFile.MB2WC(buf, cbuf, sz);
1524     #endif // wxUSE_UNICODE
1525     }
1526
1527     if ( !ok )
1528     {
1529         wxLogSysError(_("Failed to get the working directory"));
1530
1531         // VZ: the old code used to return "." on error which didn't make any
1532         //     sense at all to me - empty string is a better error indicator
1533         //     (NULL might be even better but I'm afraid this could lead to
1534         //     problems with the old code assuming the return is never NULL)
1535         buf[0] = _T('\0');
1536     }
1537     else // ok, but we might need to massage the path into the right format
1538     {
1539 #ifdef __DJGPP__
1540         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1541         //     with / deliminers. We don't like that.
1542         for (wxChar *ch = buf; *ch; ch++)
1543         {
1544             if (*ch == wxT('/'))
1545                 *ch = wxT('\\');
1546         }
1547 #endif // __DJGPP__
1548
1549 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1550 //      he needs Unix as opposed to Win32 pathnames
1551 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1552         // another example of DOS/Unix mix (Cygwin)
1553         wxString pathUnix = buf;
1554         cygwin_conv_to_full_win32_path(pathUnix, buf);
1555 #endif // __CYGWIN__
1556     }
1557
1558     return buf;
1559
1560 #if !wxUSE_UNICODE
1561     #undef cbuf
1562 #endif
1563 }
1564
1565 wxString wxGetCwd()
1566 {
1567     wxChar *buffer = new wxChar[_MAXPATHLEN];
1568     wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1569     wxString str( buffer );
1570     delete [] buffer;
1571
1572     return str;
1573 }
1574
1575 bool wxSetWorkingDirectory(const wxString& d)
1576 {
1577 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1578   return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1579 #elif defined(__WXPM__)
1580   return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1581 #elif defined(__WINDOWS__)
1582
1583 #ifdef __WIN32__
1584   return (bool)(SetCurrentDirectory(d) != 0);
1585 #else
1586   // Must change drive, too.
1587   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1588   if (isDriveSpec)
1589   {
1590     wxChar firstChar = d[0];
1591
1592     // To upper case
1593     if (firstChar > 90)
1594       firstChar = firstChar - 32;
1595
1596     // To a drive number
1597     unsigned int driveNo = firstChar - 64;
1598     if (driveNo > 0)
1599     {
1600        unsigned int noDrives;
1601        _dos_setdrive(driveNo, &noDrives);
1602     }
1603   }
1604   bool success = (chdir(WXSTRINGCAST d) == 0);
1605
1606   return success;
1607 #endif
1608
1609 #endif
1610 }
1611
1612 // Get the OS directory if appropriate (such as the Windows directory).
1613 // On non-Windows platform, probably just return the empty string.
1614 wxString wxGetOSDirectory()
1615 {
1616 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1617     wxChar buf[256];
1618     GetWindowsDirectory(buf, 256);
1619     return wxString(buf);
1620 #else
1621     return wxEmptyString;
1622 #endif
1623 }
1624
1625 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1626 {
1627     size_t len = wxStrlen(pszFileName);
1628
1629     return len && wxIsPathSeparator(pszFileName[len - 1]);
1630 }
1631
1632 // find a file in a list of directories, returns FALSE if not found
1633 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1634 {
1635     // we assume that it's not empty
1636     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1637                  _T("empty file name in wxFindFileInPath"));
1638
1639     // skip path separator in the beginning of the file name if present
1640     if ( wxIsPathSeparator(*pszFile) )
1641         pszFile++;
1642
1643     // copy the path (strtok will modify it)
1644     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1645     wxStrcpy(szPath, pszPath);
1646
1647     wxString strFile;
1648     wxChar *pc, *save_ptr;
1649     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1650           pc != NULL;
1651           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1652     {
1653         // search for the file in this directory
1654         strFile = pc;
1655         if ( !wxEndsWithPathSeparator(pc) )
1656             strFile += wxFILE_SEP_PATH;
1657         strFile += pszFile;
1658
1659         if ( wxFileExists(strFile) ) {
1660             *pStr = strFile;
1661             break;
1662         }
1663     }
1664
1665     // suppress warning about unused variable save_ptr when wxStrtok() is a
1666     // macro which throws away its third argument
1667     save_ptr = pc;
1668
1669     delete [] szPath;
1670
1671     return pc != NULL;  // if TRUE => we breaked from the loop
1672 }
1673
1674 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1675                              wxString *pstrPath,
1676                              wxString *pstrName,
1677                              wxString *pstrExt)
1678 {
1679     // it can be empty, but it shouldn't be NULL
1680     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1681
1682     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1683 }
1684
1685 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1686 {
1687     wxStructStat buf;
1688     wxStat( filename, &buf);
1689
1690     return buf.st_mtime;
1691 }
1692
1693
1694 //------------------------------------------------------------------------
1695 // wild character routines
1696 //------------------------------------------------------------------------
1697
1698 bool wxIsWild( const wxString& pattern )
1699 {
1700     wxString tmp = pattern;
1701     wxChar *pat = WXSTRINGCAST(tmp);
1702     while (*pat)
1703     {
1704         switch (*pat++)
1705         {
1706         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1707             return TRUE;
1708         case wxT('\\'):
1709             if (!*pat++)
1710                 return FALSE;
1711         }
1712     }
1713     return FALSE;
1714 }
1715
1716 /*
1717 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1718 *
1719 * The match procedure is public domain code (from ircII's reg.c)
1720 */
1721
1722 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1723 {
1724         if (text.empty())
1725         {
1726                 /* Match if both are empty. */
1727                 return pat.empty();
1728         }
1729
1730         const wxChar *m = pat.c_str(),
1731         *n = text.c_str(),
1732         *ma = NULL,
1733         *na = NULL,
1734         *mp = NULL,
1735         *np = NULL;
1736         int just = 0,
1737         pcount = 0,
1738         acount = 0,
1739         count = 0;
1740
1741         if (dot_special && (*n == wxT('.')))
1742         {
1743                 /* Never match so that hidden Unix files
1744                  * are never found. */
1745                 return FALSE;
1746         }
1747
1748         for (;;)
1749         {
1750                 if (*m == wxT('*'))
1751                 {
1752                         ma = ++m;
1753                         na = n;
1754                         just = 1;
1755                         mp = NULL;
1756                         acount = count;
1757                 }
1758                 else if (*m == wxT('?'))
1759                 {
1760                         m++;
1761                         if (!*n++)
1762                         return FALSE;
1763                 }
1764                 else
1765                 {
1766                         if (*m == wxT('\\'))
1767                         {
1768                                 m++;
1769                                 /* Quoting "nothing" is a bad thing */
1770                                 if (!*m)
1771                                 return FALSE;
1772                         }
1773                         if (!*m)
1774                         {
1775                                 /*
1776                                 * If we are out of both strings or we just
1777                                 * saw a wildcard, then we can say we have a
1778                                 * match
1779                                 */
1780                                 if (!*n)
1781                                 return TRUE;
1782                                 if (just)
1783                                 return TRUE;
1784                                 just = 0;
1785                                 goto not_matched;
1786                         }
1787                         /*
1788                         * We could check for *n == NULL at this point, but
1789                         * since it's more common to have a character there,
1790                         * check to see if they match first (m and n) and
1791                         * then if they don't match, THEN we can check for
1792                         * the NULL of n
1793                         */
1794                         just = 0;
1795                         if (*m == *n)
1796                         {
1797                                 m++;
1798                                 if (*n == wxT(' '))
1799                                 mp = NULL;
1800                                 count++;
1801                                 n++;
1802                         }
1803                         else
1804                         {
1805
1806                                 not_matched:
1807
1808                                 /*
1809                                 * If there are no more characters in the
1810                                 * string, but we still need to find another
1811                                 * character (*m != NULL), then it will be
1812                                 * impossible to match it
1813                                 */
1814                                 if (!*n)
1815                                 return FALSE;
1816                                 if (mp)
1817                                 {
1818                                         m = mp;
1819                                         if (*np == wxT(' '))
1820                                         {
1821                                                 mp = NULL;
1822                                                 goto check_percent;
1823                                         }
1824                                         n = ++np;
1825                                         count = pcount;
1826                                 }
1827                                 else
1828                                 check_percent:
1829
1830                                 if (ma)
1831                                 {
1832                                         m = ma;
1833                                         n = ++na;
1834                                         count = acount;
1835                                 }
1836                                 else
1837                                 return FALSE;
1838                         }
1839                 }
1840         }
1841 }
1842
1843
1844 #ifdef __VISUALC__
1845     #pragma warning(default:4706)   // assignment within conditional expression
1846 #endif // VC++