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