src/common/filefn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        filefn.cpp
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "filefn.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26 #include "wx/defs.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 #include "wx/utils.h"
  33 #include "wx/intl.h"
  34 #include "wx/file.h" // This does include filefn.h
  35 #include "wx/filename.h"
  36 #include "wx/dir.h"
  37
  38 // there are just too many of those...
  39 #ifdef __VISUALC__
  40     #pragma warning(disable:4706)   // assignment within conditional expression
  41 #endif // VC++
  42
  43 #include <ctype.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <string.h>
  47 #if !defined(__WATCOMC__)
  48     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  49         #include <errno.h>
  50     #endif
  51 #endif
  52
  53 #if defined(__WXMAC__)
  54     #include  "wx/mac/private.h"  // includes mac headers
  55 #endif
  56
  57 #include "wx/log.h"
  58
  59 // No, Cygwin doesn't appear to have fnmatch.h after all.
  60 #if defined(HAVE_FNMATCH_H)
  61     #include "fnmatch.h"
  62 #endif
  63
  64 #ifdef __WINDOWS__
  65     #include "wx/msw/private.h"
  66     #include "wx/msw/mslu.h"
  67
  68     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
  69     //
  70     // note that it must be included after <windows.h>
  71     #ifdef __GNUWIN32__
  72         #ifdef __CYGWIN__
  73             #include <sys/cygwin.h>
  74         #endif
  75     #endif // __GNUWIN32__
  76
  77     // io.h is needed for _get_osfhandle()
  78     // Already included by filefn.h for many Windows compilers
  79     #if defined __MWERKS__ || defined __CYGWIN__
  80         #include <io.h>
  81     #endif
  82 #endif // __WINDOWS__
  83
  84 #if defined(__VMS__)
  85     #include <fab.h>
  86 #endif
  87
  88 // TODO: Borland probably has _wgetcwd as well?
  89 #ifdef _MSC_VER
  90     #define HAVE_WGETCWD
  91 #endif
  92
  93 // ----------------------------------------------------------------------------
  94 // constants
  95 // ----------------------------------------------------------------------------
  96
  97 #ifndef _MAXPATHLEN
  98     #define _MAXPATHLEN 1024
  99 #endif
 100
 101 #ifdef __WXMAC__
 102 #    include "MoreFilesX.h"
 103 #endif
 104
 105 // ----------------------------------------------------------------------------
 106 // private globals
 107 // ----------------------------------------------------------------------------
 108
 109 // MT-FIXME: get rid of this horror and all code using it
 110 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 111
 112 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 113 //
 114 // VisualAge C++ V4.0 cannot have any external linkage const decs
 115 // in headers included by more than one primary source
 116 //
 117 const int wxInvalidOffset = -1;
 118 #endif
 119
 120 // ----------------------------------------------------------------------------
 121 // macros
 122 // ----------------------------------------------------------------------------
 123
 124 // we need to translate Mac filenames before passing them to OS functions
 125 #define OS_FILENAME(s) (s.fn_str())
 126
 127 // ============================================================================
 128 // implementation
 129 // ============================================================================
 130
 131 #ifdef wxNEED_WX_UNISTD_H
 132
 133 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 134 {
 135     return stat( wxConvFile.cWX2MB( file_name ), buf );
 136 }
 137
 138 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 139 {
 140     return access( wxConvFile.cWX2MB( pathname ), mode );
 141 }
 142
 143 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 144 {
 145     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 146 }
 147
 148 #endif
 149    // wxNEED_WX_UNISTD_H
 150
 151 // ----------------------------------------------------------------------------
 152 // wxPathList
 153 // ----------------------------------------------------------------------------
 154
 155 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 156
 157 static inline wxChar* MYcopystring(const wxString& s)
 158 {
 159     wxChar* copy = new wxChar[s.length() + 1];
 160     return wxStrcpy(copy, s.c_str());
 161 }
 162
 163 static inline wxChar* MYcopystring(const wxChar* s)
 164 {
 165     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 166     return wxStrcpy(copy, s);
 167 }
 168
 169 void wxPathList::Add (const wxString& path)
 170 {
 171     wxStringList::Add (WXSTRINGCAST path);
 172 }
 173
 174 // Add paths e.g. from the PATH environment variable
 175 void wxPathList::AddEnvList (const wxString& envVariable)
 176 {
 177     // No environment variables on WinCE
 178 #ifndef __WXWINCE__
 179     static const wxChar PATH_TOKS[] =
 180 #if defined(__WINDOWS__) || defined(__OS2__)
 181         /*
 182         The space has been removed from the tokenizers, otherwise a
 183         path such as "C:\Program Files" would be split into 2 paths:
 184         "C:\Program" and "Files"
 185         */
 186 //        wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 187         wxT(";"); // Don't seperate with colon in DOS (used for drive)
 188 #else
 189         wxT(" :;");
 190 #endif
 191
 192     wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 193     if (val && *val)
 194     {
 195         wxChar *s = MYcopystring (val);
 196         wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 197
 198         if (token)
 199         {
 200             Add(token);
 201             while (token)
 202             {
 203                 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
 204                     != NULL )
 205                 {
 206                     Add(token);
 207                 }
 208             }
 209         }
 210
 211         // suppress warning about unused variable save_ptr when wxStrtok() is a
 212         // macro which throws away its third argument
 213         save_ptr = token;
 214
 215         delete [] s;
 216     }
 217 #endif
 218 }
 219
 220 // Given a full filename (with path), ensure that that file can
 221 // be accessed again USING FILENAME ONLY by adding the path
 222 // to the list if not already there.
 223 void wxPathList::EnsureFileAccessible (const wxString& path)
 224 {
 225     wxString path_only(wxPathOnly(path));
 226     if ( !path_only.empty() )
 227     {
 228         if ( !Member(path_only) )
 229             Add(path_only);
 230     }
 231 }
 232
 233 bool wxPathList::Member (const wxString& path)
 234 {
 235   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 236   {
 237       wxString path2( node->GetData() );
 238       if (
 239 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined(__WXMAC__)
 240       // Case INDEPENDENT
 241           path.CompareTo (path2, wxString::ignoreCase) == 0
 242 #else
 243       // Case sensitive File System
 244           path.CompareTo (path2) == 0
 245 #endif
 246         )
 247         return true;
 248   }
 249   return false;
 250 }
 251
 252 wxString wxPathList::FindValidPath (const wxString& file)
 253 {
 254   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 255     return wxString(wxFileFunctionsBuffer);
 256
 257   wxChar buf[_MAXPATHLEN];
 258   wxStrcpy(buf, wxFileFunctionsBuffer);
 259
 260   wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 261
 262   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 263     {
 264       const wxChar *path = node->GetData();
 265       wxStrcpy (wxFileFunctionsBuffer, path);
 266       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 267       if (ch != wxT('\\') && ch != wxT('/'))
 268         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 269       wxStrcat (wxFileFunctionsBuffer, filename);
 270 #ifdef __WINDOWS__
 271       wxUnix2DosFilename (wxFileFunctionsBuffer);
 272 #endif
 273       if (wxFileExists (wxFileFunctionsBuffer))
 274       {
 275         return wxString(wxFileFunctionsBuffer);        // Found!
 276       }
 277     }                                // for()
 278
 279   return wxEmptyString;                    // Not found
 280 }
 281
 282 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 283 {
 284     wxString f = FindValidPath(file);
 285     if ( f.empty() || wxIsAbsolutePath(f) )
 286         return f;
 287
 288     wxString buf;
 289     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 290
 291     if ( !wxEndsWithPathSeparator(buf) )
 292     {
 293         buf += wxFILE_SEP_PATH;
 294     }
 295     buf += f;
 296
 297     return buf;
 298 }
 299
 300 bool
 301 wxFileExists (const wxString& filename)
 302 {
 303 #if defined(__WXPALMOS__)
 304     return false;
 305 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
 306     // we must use GetFileAttributes() instead of the ANSI C functions because
 307     // it can cope with network (UNC) paths unlike them
 308     DWORD ret = ::GetFileAttributes(filename);
 309
 310     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 311 #else // !__WIN32__
 312     wxStructStat st;
 313 #ifndef wxNEED_WX_UNISTD_H
 314     return wxStat( filename.fn_str() , &st) == 0 && (st.st_mode & S_IFREG);
 315 #else
 316     return wxStat( filename , &st) == 0 && (st.st_mode & S_IFREG);
 317 #endif
 318 #endif // __WIN32__/!__WIN32__
 319 }
 320
 321 bool
 322 wxIsAbsolutePath (const wxString& filename)
 323 {
 324     if (!filename.empty())
 325     {
 326 #if defined(__WXMAC__) && !defined(__DARWIN__)
 327         // Classic or Carbon CodeWarrior like
 328         // Carbon with Apple DevTools is Unix like
 329
 330         // This seems wrong to me, but there is no fix. since
 331         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 332         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 333         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 334             return true ;
 335 #else
 336         // Unix like or Windows
 337         if (filename[0] == wxT('/'))
 338             return true;
 339 #endif
 340 #ifdef __VMS__
 341         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 342             return true;
 343 #endif
 344 #if defined(__WINDOWS__) || defined(__OS2__)
 345         // MSDOS like
 346         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 347             return true;
 348 #endif
 349     }
 350     return false ;
 351 }
 352
 353 /*
 354  * Strip off any extension (dot something) from end of file,
 355  * IF one exists. Inserts zero into buffer.
 356  *
 357  */
 358
 359 void wxStripExtension(wxChar *buffer)
 360 {
 361   int len = wxStrlen(buffer);
 362   int i = len-1;
 363   while (i > 0)
 364   {
 365     if (buffer[i] == wxT('.'))
 366     {
 367       buffer[i] = 0;
 368       break;
 369     }
 370     i --;
 371   }
 372 }
 373
 374 void wxStripExtension(wxString& buffer)
 375 {
 376     //RN:  Be careful about the handling the case where
 377     //buffer.Length() == 0
 378     for(size_t i = buffer.Length() - 1; i != wxString::npos; --i)
 379     {
 380         if (buffer.GetChar(i) == wxT('.'))
 381         {
 382           buffer = buffer.Left(i);
 383           break;
 384         }
 385     }
 386 }
 387
 388 // Destructive removal of /./ and /../ stuff
 389 wxChar *wxRealPath (wxChar *path)
 390 {
 391 #ifdef __WXMSW__
 392   static const wxChar SEP = wxT('\\');
 393   wxUnix2DosFilename(path);
 394 #else
 395   static const wxChar SEP = wxT('/');
 396 #endif
 397   if (path[0] && path[1]) {
 398     /* MATTHEW: special case "/./x" */
 399     wxChar *p;
 400     if (path[2] == SEP && path[1] == wxT('.'))
 401       p = &path[0];
 402     else
 403       p = &path[2];
 404     for (; *p; p++)
 405       {
 406         if (*p == SEP)
 407           {
 408             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 409               {
 410                 wxChar *q;
 411                 for (q = p - 1; q >= path && *q != SEP; q--)
 412                 {
 413                     // Empty
 414                 }
 415
 416                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 417                     && (q - 1 <= path || q[-1] != SEP))
 418                   {
 419                     wxStrcpy (q, p + 3);
 420                     if (path[0] == wxT('\0'))
 421                       {
 422                         path[0] = SEP;
 423                         path[1] = wxT('\0');
 424                       }
 425 #if defined(__WXMSW__) || defined(__OS2__)
 426                     /* Check that path[2] is NULL! */
 427                     else if (path[1] == wxT(':') && !path[2])
 428                       {
 429                         path[2] = SEP;
 430                         path[3] = wxT('\0');
 431                       }
 432 #endif
 433                     p = q - 1;
 434                   }
 435               }
 436             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 437               wxStrcpy (p, p + 2);
 438           }
 439       }
 440   }
 441   return path;
 442 }
 443
 444 // Must be destroyed
 445 wxChar *wxCopyAbsolutePath(const wxString& filename)
 446 {
 447   if (filename.empty())
 448     return (wxChar *) NULL;
 449
 450   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 451     wxChar  buf[_MAXPATHLEN];
 452     buf[0] = wxT('\0');
 453     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 454     wxChar ch = buf[wxStrlen(buf) - 1];
 455 #ifdef __WXMSW__
 456     if (ch != wxT('\\') && ch != wxT('/'))
 457         wxStrcat(buf, wxT("\\"));
 458 #else
 459     if (ch != wxT('/'))
 460         wxStrcat(buf, wxT("/"));
 461 #endif
 462     wxStrcat(buf, wxFileFunctionsBuffer);
 463     return MYcopystring( wxRealPath(buf) );
 464   }
 465   return MYcopystring( wxFileFunctionsBuffer );
 466 }
 467
 468 /*-
 469  Handles:
 470    ~/ => home dir
 471    ~user/ => user's home dir
 472    If the environment variable a = "foo" and b = "bar" then:
 473    Unix:
 474         $a        =>        foo
 475         $a$b        =>        foobar
 476         $a.c        =>        foo.c
 477         xxx$a        =>        xxxfoo
 478         ${a}!        =>        foo!
 479         $(b)!        =>        bar!
 480         \$a        =>        \$a
 481    MSDOS:
 482         $a        ==>        $a
 483         $(a)        ==>        foo
 484         $(a)$b        ==>        foo$b
 485         $(a)$(b)==>        foobar
 486         test.$$        ==>        test.$$
 487  */
 488
 489 /* input name in name, pathname output to buf. */
 490
 491 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 492 {
 493     register wxChar *d, *s, *nm;
 494     wxChar          lnm[_MAXPATHLEN];
 495     int             q;
 496
 497     // Some compilers don't like this line.
 498 //    const wxChar    trimchars[] = wxT("\n \t");
 499
 500     wxChar      trimchars[4];
 501     trimchars[0] = wxT('\n');
 502     trimchars[1] = wxT(' ');
 503     trimchars[2] = wxT('\t');
 504     trimchars[3] = 0;
 505
 506 #ifdef __WXMSW__
 507     const wxChar     SEP = wxT('\\');
 508 #else
 509     const wxChar     SEP = wxT('/');
 510 #endif
 511     buf[0] = wxT('\0');
 512     if (name == NULL || *name == wxT('\0'))
 513         return buf;
 514     nm = MYcopystring(name); // Make a scratch copy
 515     wxChar *nm_tmp = nm;
 516
 517     /* Skip leading whitespace and cr */
 518     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 519         nm++;
 520     /* And strip off trailing whitespace and cr */
 521     s = nm + (q = wxStrlen(nm)) - 1;
 522     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 523         *s = wxT('\0');
 524
 525     s = nm;
 526     d = lnm;
 527 #ifdef __WXMSW__
 528     q = FALSE;
 529 #else
 530     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 531 #endif
 532
 533     /* Expand inline environment variables */
 534 #ifdef __VISAGECPP__
 535     while (*d)
 536     {
 537       *d++ = *s;
 538       if(*s == wxT('\\'))
 539       {
 540         *(d - 1) = *++s;
 541         if (*d)
 542         {
 543           s++;
 544           continue;
 545         }
 546         else
 547            break;
 548       }
 549       else
 550 #else
 551     while ((*d++ = *s) != 0) {
 552 #  ifndef __WXMSW__
 553         if (*s == wxT('\\')) {
 554             if ((*(d - 1) = *++s)) {
 555                 s++;
 556                 continue;
 557             } else
 558                 break;
 559         } else
 560 #  endif
 561 #endif
 562             // No env variables on WinCE
 563 #ifndef __WXWINCE__
 564 #ifdef __WXMSW__
 565         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 566 #else
 567         if (*s++ == wxT('$'))
 568 #endif
 569         {
 570             register wxChar  *start = d;
 571             register int     braces = (*s == wxT('{') || *s == wxT('('));
 572             register wxChar  *value;
 573             while ((*d++ = *s) != 0)
 574                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 575                     break;
 576                 else
 577                     s++;
 578             *--d = 0;
 579             value = wxGetenv(braces ? start + 1 : start);
 580             if (value) {
 581                 for ((d = start - 1); (*d++ = *value++) != 0;)
 582                 {
 583                     // Empty
 584                 }
 585
 586                 d--;
 587                 if (braces && *s)
 588                     s++;
 589             }
 590         }
 591 #endif
 592         // __WXWINCE__
 593     }
 594
 595     /* Expand ~ and ~user */
 596     nm = lnm;
 597     if (nm[0] == wxT('~') && !q)
 598     {
 599         /* prefix ~ */
 600         if (nm[1] == SEP || nm[1] == 0)
 601         {        /* ~/filename */
 602         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 603             if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
 604                 if (*++nm)
 605                     nm++;
 606             }
 607         } else
 608         {                /* ~user/filename */
 609             register wxChar  *nnm;
 610             register wxChar  *home;
 611             for (s = nm; *s && *s != SEP; s++)
 612             {
 613                 // Empty
 614             }
 615             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 616             was_sep = (*s == SEP);
 617             nnm = *s ? s + 1 : s;
 618             *s = 0;
 619         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 620             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 621                if (was_sep) /* replace only if it was there: */
 622                    *s = SEP;
 623                 s = NULL;
 624             } else {
 625                 nm = nnm;
 626                 s = home;
 627             }
 628         }
 629     }
 630
 631     d = buf;
 632     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 633         /* Copy home dir */
 634         while (wxT('\0') != (*d++ = *s++))
 635           /* loop */;
 636         // Handle root home
 637         if (d - 1 > buf && *(d - 2) != SEP)
 638           *(d - 1) = SEP;
 639     }
 640     s = nm;
 641     while ((*d++ = *s++) != 0)
 642     {
 643         // Empty
 644     }
 645     delete[] nm_tmp; // clean up alloc
 646     /* Now clean up the buffer */
 647     return wxRealPath(buf);
 648 }
 649
 650 /* Contract Paths to be build upon an environment variable
 651    component:
 652
 653    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 654
 655    The call wxExpandPath can convert these back!
 656  */
 657 wxChar *
 658 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 659 {
 660   static wxChar dest[_MAXPATHLEN];
 661
 662   if (filename.empty())
 663     return (wxChar *) NULL;
 664
 665   wxStrcpy (dest, WXSTRINGCAST filename);
 666 #ifdef __WXMSW__
 667   wxUnix2DosFilename(dest);
 668 #endif
 669
 670   // Handle environment
 671   const wxChar *val;
 672 #ifndef __WXWINCE__
 673   wxChar *tcp;
 674   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 675      (tcp = wxStrstr (dest, val)) != NULL)
 676     {
 677         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 678         *tcp++ = wxT('$');
 679         *tcp++ = wxT('{');
 680         wxStrcpy (tcp, WXSTRINGCAST envname);
 681         wxStrcat (tcp, wxT("}"));
 682         wxStrcat (tcp, wxFileFunctionsBuffer);
 683     }
 684 #endif
 685
 686   // Handle User's home (ignore root homes!)
 687   val = wxGetUserHome (user);
 688   if (!val)
 689     return dest;
 690
 691   const size_t len = wxStrlen(val);
 692   if (len <= 2)
 693     return dest;
 694
 695   if (wxStrncmp(dest, val, len) == 0)
 696   {
 697     wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 698     if (!user.empty())
 699            wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 700     wxStrcat(wxFileFunctionsBuffer, dest + len);
 701     wxStrcpy (dest, wxFileFunctionsBuffer);
 702   }
 703
 704   return dest;
 705 }
 706
 707 // Return just the filename, not the path (basename)
 708 wxChar *wxFileNameFromPath (wxChar *path)
 709 {
 710     wxString p = path;
 711     wxString n = wxFileNameFromPath(p);
 712
 713     return path + p.length() - n.length();
 714 }
 715
 716 wxString wxFileNameFromPath (const wxString& path)
 717 {
 718     wxString name, ext;
 719     wxFileName::SplitPath(path, NULL, &name, &ext);
 720
 721     wxString fullname = name;
 722     if ( !ext.empty() )
 723     {
 724         fullname << wxFILE_SEP_EXT << ext;
 725     }
 726
 727     return fullname;
 728 }
 729
 730 // Return just the directory, or NULL if no directory
 731 wxChar *
 732 wxPathOnly (wxChar *path)
 733 {
 734     if (path && *path)
 735     {
 736         static wxChar buf[_MAXPATHLEN];
 737
 738         // Local copy
 739         wxStrcpy (buf, path);
 740
 741         int l = wxStrlen(path);
 742         int i = l - 1;
 743
 744         // Search backward for a backward or forward slash
 745         while (i > -1)
 746         {
 747 #if defined(__WXMAC__) && !defined(__DARWIN__)
 748             // Classic or Carbon CodeWarrior like
 749             // Carbon with Apple DevTools is Unix like
 750             if (path[i] == wxT(':') )
 751             {
 752                 buf[i] = 0;
 753                 return buf;
 754             }
 755 #else
 756             // Unix like or Windows
 757             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 758             {
 759                 buf[i] = 0;
 760                 return buf;
 761             }
 762 #endif
 763 #ifdef __VMS__
 764             if (path[i] == wxT(']'))
 765             {
 766                 buf[i+1] = 0;
 767                 return buf;
 768             }
 769 #endif
 770             i --;
 771         }
 772
 773 #if defined(__WXMSW__) || defined(__OS2__)
 774         // Try Drive specifier
 775         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 776         {
 777             // A:junk --> A:. (since A:.\junk Not A:\junk)
 778             buf[2] = wxT('.');
 779             buf[3] = wxT('\0');
 780             return buf;
 781         }
 782 #endif
 783     }
 784     return (wxChar *) NULL;
 785 }
 786
 787 // Return just the directory, or NULL if no directory
 788 wxString wxPathOnly (const wxString& path)
 789 {
 790     if (!path.empty())
 791     {
 792         wxChar buf[_MAXPATHLEN];
 793
 794         // Local copy
 795         wxStrcpy (buf, WXSTRINGCAST path);
 796
 797         int l = path.Length();
 798         int i = l - 1;
 799
 800         // Search backward for a backward or forward slash
 801         while (i > -1)
 802         {
 803 #if defined(__WXMAC__) && !defined(__DARWIN__)
 804             // Classic or Carbon CodeWarrior like
 805             // Carbon with Apple DevTools is Unix like
 806             if (path[i] == wxT(':') )
 807             {
 808                 buf[i] = 0;
 809                 return wxString(buf);
 810             }
 811 #else
 812             // Unix like or Windows
 813             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 814             {
 815                 // Don't return an empty string
 816                 if (i == 0)
 817                     i ++;
 818                 buf[i] = 0;
 819                 return wxString(buf);
 820             }
 821 #endif
 822 #ifdef __VMS__
 823             if (path[i] == wxT(']'))
 824             {
 825                 buf[i+1] = 0;
 826                 return wxString(buf);
 827             }
 828 #endif
 829             i --;
 830         }
 831
 832 #if defined(__WXMSW__) || defined(__OS2__)
 833         // Try Drive specifier
 834         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 835         {
 836             // A:junk --> A:. (since A:.\junk Not A:\junk)
 837             buf[2] = wxT('.');
 838             buf[3] = wxT('\0');
 839             return wxString(buf);
 840         }
 841 #endif
 842     }
 843     return wxEmptyString;
 844 }
 845
 846 // Utility for converting delimiters in DOS filenames to UNIX style
 847 // and back again - or we get nasty problems with delimiters.
 848 // Also, convert to lower case, since case is significant in UNIX.
 849
 850 #if defined(__WXMAC__)
 851
 852 #if TARGET_API_MAC_OSX
 853 #define kDefaultPathStyle kCFURLPOSIXPathStyle
 854 #else
 855 #define kDefaultPathStyle kCFURLHFSPathStyle
 856 #endif
 857
 858 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
 859 {
 860     CFURLRef fullURLRef;
 861     fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
 862     if ( additionalPathComponent )
 863     {
 864         CFURLRef parentURLRef = fullURLRef ;
 865         fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
 866             additionalPathComponent,false);
 867         CFRelease( parentURLRef ) ;
 868     }
 869     CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
 870     CFRelease( fullURLRef ) ;
 871     return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
 872 }
 873
 874 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
 875 {
 876     OSStatus err = noErr ;
 877     CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
 878     if ( NULL != url )
 879     {
 880         if ( CFURLGetFSRef(url, fsRef) == false )
 881             err = fnfErr ;
 882         CFRelease( url ) ;
 883     }
 884     else
 885     {
 886         err = fnfErr ;
 887     }
 888     return err ;
 889 }
 890
 891 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
 892 {
 893     CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
 894                                                       uniname->unicode,
 895                                                       uniname->length );
 896     return wxMacCFStringHolder(cfname).AsString() ;
 897 }
 898
 899 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 900 {
 901     FSRef fsRef ;
 902     if ( FSpMakeFSRef( spec , &fsRef) == noErr )
 903     {
 904         return wxMacFSRefToPath( &fsRef ) ;
 905     }
 906     return wxEmptyString ;
 907 }
 908
 909 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
 910 {
 911     OSStatus err = noErr ;
 912     FSRef fsRef ;
 913     wxMacPathToFSRef( path , &fsRef ) ;
 914     err = FSRefMakeFSSpec( &fsRef , spec ) ;
 915 }
 916
 917 #endif // __WXMAC__
 918
 919 void
 920 wxDos2UnixFilename (wxChar *s)
 921 {
 922   if (s)
 923     while (*s)
 924       {
 925         if (*s == _T('\\'))
 926           *s = _T('/');
 927 #ifdef __WXMSW__
 928         else
 929           *s = (wxChar)wxTolower (*s);        // Case INDEPENDENT
 930 #endif
 931         s++;
 932       }
 933 }
 934
 935 void
 936 #if defined(__WXMSW__) || defined(__OS2__)
 937 wxUnix2DosFilename (wxChar *s)
 938 #else
 939 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 940 #endif
 941 {
 942 // Yes, I really mean this to happen under DOS only! JACS
 943 #if defined(__WXMSW__) || defined(__OS2__)
 944   if (s)
 945     while (*s)
 946       {
 947         if (*s == wxT('/'))
 948           *s = wxT('\\');
 949         s++;
 950       }
 951 #endif
 952 }
 953
 954 // Concatenate two files to form third
 955 bool
 956 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 957 {
 958   wxString outfile;
 959   if ( !wxGetTempFileName( wxT("cat"), outfile) )
 960       return false;
 961
 962   FILE *fp1 wxDUMMY_INITIALIZE(NULL);
 963   FILE *fp2 = NULL;
 964   FILE *fp3 = NULL;
 965   // Open the inputs and outputs
 966   if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
 967       (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
 968       (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
 969     {
 970       if (fp1)
 971         fclose (fp1);
 972       if (fp2)
 973         fclose (fp2);
 974       if (fp3)
 975         fclose (fp3);
 976       return false;
 977     }
 978
 979   int ch;
 980   while ((ch = getc (fp1)) != EOF)
 981     (void) putc (ch, fp3);
 982   fclose (fp1);
 983
 984   while ((ch = getc (fp2)) != EOF)
 985     (void) putc (ch, fp3);
 986   fclose (fp2);
 987
 988   fclose (fp3);
 989   bool result = wxRenameFile(outfile, file3);
 990   return result;
 991 }
 992
 993 // Copy files
 994 bool
 995 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
 996 {
 997 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 998     // CopyFile() copies file attributes and modification time too, so use it
 999     // instead of our code if available
1000     //
1001     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1002     if ( !::CopyFile(file1, file2, !overwrite) )
1003     {
1004         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1005                       file1.c_str(), file2.c_str());
1006
1007         return false;
1008     }
1009 #elif defined(__OS2__)
1010     if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
1011         return false;
1012 #elif defined(__PALMOS__)
1013     // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1014     return false;
1015 #else // !Win32
1016
1017     wxStructStat fbuf;
1018     // get permissions of file1
1019     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1020     {
1021         // the file probably doesn't exist or we haven't the rights to read
1022         // from it anyhow
1023         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1024                       file1.c_str());
1025         return false;
1026     }
1027
1028     // open file1 for reading
1029     wxFile fileIn(file1, wxFile::read);
1030     if ( !fileIn.IsOpened() )
1031         return false;
1032
1033     // remove file2, if it exists. This is needed for creating
1034     // file2 with the correct permissions in the next step
1035     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1036     {
1037         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1038                       file2.c_str());
1039         return false;
1040     }
1041
1042     // reset the umask as we want to create the file with exactly the same
1043     // permissions as the original one
1044     wxCHANGE_UMASK(0);
1045
1046     // create file2 with the same permissions than file1 and open it for
1047     // writing
1048
1049     wxFile fileOut;
1050     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1051         return false;
1052
1053     // copy contents of file1 to file2
1054     char buf[4096];
1055     size_t count;
1056     for ( ;; )
1057     {
1058         count = fileIn.Read(buf, WXSIZEOF(buf));
1059         if ( fileIn.Error() )
1060             return false;
1061
1062         // end of file?
1063         if ( !count )
1064             break;
1065
1066         if ( fileOut.Write(buf, count) < count )
1067             return false;
1068     }
1069
1070     // we can expect fileIn to be closed successfully, but we should ensure
1071     // that fileOut was closed as some write errors (disk full) might not be
1072     // detected before doing this
1073     if ( !fileIn.Close() || !fileOut.Close() )
1074         return false;
1075
1076 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1077     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1078     // however
1079     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1080     {
1081         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1082                       file2.c_str());
1083         return false;
1084     }
1085 #endif // OS/2 || Mac
1086 #endif // __WXMSW__ && __WIN32__
1087
1088     return true;
1089 }
1090
1091 bool
1092 wxRenameFile (const wxString& file1, const wxString& file2)
1093 {
1094 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1095     // Normal system call
1096   if ( wxRename (file1, file2) == 0 )
1097     return true;
1098 #endif
1099
1100   // Try to copy
1101   if (wxCopyFile(file1, file2)) {
1102     wxRemoveFile(file1);
1103     return true;
1104   }
1105   // Give up
1106   return false;
1107 }
1108
1109 bool wxRemoveFile(const wxString& file)
1110 {
1111 #if defined(__VISUALC__) \
1112  || defined(__BORLANDC__) \
1113  || defined(__WATCOMC__) \
1114  || defined(__DMC__) \
1115  || defined(__GNUWIN32__) \
1116  || (defined(__MWERKS__) && defined(__MSL__))
1117     int res = wxRemove(file);
1118 #elif defined(__WXMAC__)
1119     int res = unlink(wxFNCONV(file));
1120 #elif defined(__WXPALMOS__)
1121     int res = 1;
1122     // TODO with VFSFileDelete()
1123 #else
1124     int res = unlink(OS_FILENAME(file));
1125 #endif
1126
1127     return res == 0;
1128 }
1129
1130 bool wxMkdir(const wxString& dir, int perm)
1131 {
1132 #if defined(__WXPALMOS__)
1133     return false;
1134 #elif defined(__WXMAC__) && !defined(__UNIX__)
1135     return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1136 #else // !Mac
1137     const wxChar *dirname = dir.c_str();
1138
1139     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1140     // for the GNU compiler
1141 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1142   #if defined(MSVCRT)
1143     wxUnusedVar(perm);
1144     if ( mkdir(wxFNCONV(dirname)) != 0 )
1145   #else
1146     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1147   #endif
1148 #elif defined(__OS2__)
1149     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1150 #elif defined(__DOS__)
1151   #if defined(__WATCOMC__)
1152     (void)perm;
1153     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1154   #elif defined(__DJGPP__)
1155     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1156   #else
1157     #error "Unsupported DOS compiler!"
1158   #endif
1159 #else  // !MSW, !DOS and !OS/2 VAC++
1160     wxUnusedVar(perm);
1161 #ifdef __WXWINCE__
1162     if ( !CreateDirectory(dirname, NULL) )
1163 #else
1164     if ( wxMkDir(dir.fn_str()) != 0 )
1165 #endif
1166 #endif // !MSW/MSW
1167     {
1168         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1169
1170         return false;
1171     }
1172
1173     return true;
1174 #endif // Mac/!Mac
1175 }
1176
1177 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1178 {
1179 #if defined(__VMS__)
1180     return false; //to be changed since rmdir exists in VMS7.x
1181 #elif defined(__OS2__)
1182     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1183 #elif defined(__WXWINCE__)
1184     return (CreateDirectory(dir, NULL) != 0);
1185 #elif defined(__WXPALMOS__)
1186     // TODO with VFSFileRename()
1187     return false;
1188 #else
1189     return (wxRmDir(OS_FILENAME(dir)) == 0);
1190 #endif
1191 }
1192
1193 // does the path exists? (may have or not '/' or '\\' at the end)
1194 bool wxPathExists(const wxChar *pszPathName)
1195 {
1196     wxString strPath(pszPathName);
1197
1198 #if defined(__WINDOWS__) || defined(__OS2__)
1199     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1200     // so remove all trailing backslashes from the path - but don't do this for
1201     // the pathes "d:\" (which are different from "d:") nor for just "\"
1202     while ( wxEndsWithPathSeparator(strPath) )
1203     {
1204         size_t len = strPath.length();
1205         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1206             break;
1207
1208         strPath.Truncate(len - 1);
1209     }
1210 #endif // __WINDOWS__
1211
1212 #ifdef __OS2__
1213     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1214     if (strPath.length() == 2 && strPath[1u] == _T(':'))
1215         strPath << _T('.');
1216 #endif
1217
1218 #if defined(__WXPALMOS__)
1219     return false;
1220 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1221     // stat() can't cope with network paths
1222     DWORD ret = ::GetFileAttributes(strPath);
1223
1224     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1225 #else // !__WIN32__
1226
1227     wxStructStat st;
1228 #ifndef __VISAGECPP__
1229     return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1230 #else
1231     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1232     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1233 #endif
1234
1235 #endif // __WIN32__/!__WIN32__
1236 }
1237
1238 // Get a temporary filename, opening and closing the file.
1239 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1240 {
1241 #if wxUSE_FILE
1242     wxString filename = wxFileName::CreateTempFileName(prefix);
1243     if ( filename.empty() )
1244         return NULL;
1245
1246     if ( buf )
1247         wxStrcpy(buf, filename);
1248     else
1249         buf = MYcopystring(filename);
1250
1251     return buf;
1252 #else
1253     // wxFileName::CreateTempFileName needs wxFile class enabled
1254     return NULL;
1255 #endif
1256 }
1257
1258 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1259 {
1260     buf = wxGetTempFileName(prefix);
1261
1262     return !buf.empty();
1263 }
1264
1265 // Get first file name matching given wild card.
1266
1267 static wxDir *gs_dir = NULL;
1268 static wxString gs_dirPath;
1269
1270 wxString wxFindFirstFile(const wxChar *spec, int flags)
1271 {
1272     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1273     if ( gs_dirPath.empty() )
1274         gs_dirPath = wxT(".");
1275     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1276         gs_dirPath << wxFILE_SEP_PATH;
1277
1278     if (gs_dir)
1279         delete gs_dir;
1280     gs_dir = new wxDir(gs_dirPath);
1281
1282     if ( !gs_dir->IsOpened() )
1283     {
1284         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1285         return wxEmptyString;
1286     }
1287
1288     int dirFlags;
1289     switch (flags)
1290     {
1291         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1292         case wxFILE: dirFlags = wxDIR_FILES; break;
1293         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1294     }
1295
1296     wxString result;
1297     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1298     if ( result.empty() )
1299     {
1300         wxDELETE(gs_dir);
1301         return result;
1302     }
1303
1304     return gs_dirPath + result;
1305 }
1306
1307 wxString wxFindNextFile()
1308 {
1309     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1310
1311     wxString result;
1312     gs_dir->GetNext(&result);
1313
1314     if ( result.empty() )
1315     {
1316         wxDELETE(gs_dir);
1317         return result;
1318     }
1319
1320     return gs_dirPath + result;
1321 }
1322
1323
1324 // Get current working directory.
1325 // If buf is NULL, allocates space using new, else
1326 // copies into buf.
1327 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1328 {
1329 #if defined(__WXPALMOS__)
1330     // TODO ?
1331     return NULL;
1332 #elif defined(__WXWINCE__)
1333     return NULL;
1334 #else
1335     if ( !buf )
1336     {
1337         buf = new wxChar[sz + 1];
1338     }
1339
1340     bool ok wxDUMMY_INITIALIZE(false);
1341
1342     // for the compilers which have Unicode version of _getcwd(), call it
1343     // directly, for the others call the ANSI version and do the translation
1344 #if !wxUSE_UNICODE
1345     #define cbuf buf
1346 #else // wxUSE_UNICODE
1347     bool needsANSI = true;
1348
1349     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1350         // This is not legal code as the compiler
1351         // is allowed destroy the wxCharBuffer.
1352         // wxCharBuffer c_buffer(sz);
1353         // char *cbuf = (char*)(const char*)c_buffer;
1354         char cbuf[_MAXPATHLEN];
1355     #endif
1356
1357     #ifdef HAVE_WGETCWD
1358         #if wxUSE_UNICODE_MSLU
1359             if ( wxGetOsVersion() != wxWIN95 )
1360         #else
1361             char *cbuf = NULL; // never really used because needsANSI will always be false
1362         #endif
1363             {
1364                 ok = _wgetcwd(buf, sz) != NULL;
1365                 needsANSI = false;
1366             }
1367     #endif
1368
1369     if ( needsANSI )
1370 #endif // wxUSE_UNICODE
1371     {
1372     #if defined(_MSC_VER) || defined(__MINGW32__)
1373         ok = _getcwd(cbuf, sz) != NULL;
1374     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1375         char lbuf[1024] ;
1376         if ( getcwd( lbuf , sizeof( lbuf ) ) )
1377         {
1378             wxString res( lbuf , *wxConvCurrent ) ;
1379             wxStrcpy( buf , res ) ;
1380             ok = true;
1381         }
1382         else
1383             ok = false ;
1384     #elif defined(__OS2__)
1385         APIRET rc;
1386         ULONG ulDriveNum = 0;
1387         ULONG ulDriveMap = 0;
1388         rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1389         ok = rc == 0;
1390         if (ok)
1391         {
1392             sz -= 3;
1393             rc = ::DosQueryCurrentDir( 0 // current drive
1394                                       ,cbuf + 3
1395                                       ,(PULONG)&sz
1396                                      );
1397             cbuf[0] = 'A' + (ulDriveNum - 1);
1398             cbuf[1] = ':';
1399             cbuf[2] = '\\';
1400             ok = rc == 0;
1401         }
1402     #else // !Win32/VC++ !Mac !OS2
1403         ok = getcwd(cbuf, sz) != NULL;
1404     #endif // platform
1405
1406     #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1407         // finally convert the result to Unicode if needed
1408         wxConvFile.MB2WC(buf, cbuf, sz);
1409     #endif // wxUSE_UNICODE
1410     }
1411
1412     if ( !ok )
1413     {
1414         wxLogSysError(_("Failed to get the working directory"));
1415
1416         // VZ: the old code used to return "." on error which didn't make any
1417         //     sense at all to me - empty string is a better error indicator
1418         //     (NULL might be even better but I'm afraid this could lead to
1419         //     problems with the old code assuming the return is never NULL)
1420         buf[0] = _T('\0');
1421     }
1422     else // ok, but we might need to massage the path into the right format
1423     {
1424 #ifdef __DJGPP__
1425         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1426         //     with / deliminers. We don't like that.
1427         for (wxChar *ch = buf; *ch; ch++)
1428         {
1429             if (*ch == wxT('/'))
1430                 *ch = wxT('\\');
1431         }
1432 #endif // __DJGPP__
1433
1434 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1435 //      he needs Unix as opposed to Win32 pathnames
1436 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1437         // another example of DOS/Unix mix (Cygwin)
1438         wxString pathUnix = buf;
1439         cygwin_conv_to_full_win32_path(pathUnix, buf);
1440 #endif // __CYGWIN__
1441     }
1442
1443     return buf;
1444
1445 #if !wxUSE_UNICODE
1446     #undef cbuf
1447 #endif
1448
1449 #endif
1450     // __WXWINCE__
1451 }
1452
1453 wxString wxGetCwd()
1454 {
1455     wxChar *buffer = new wxChar[_MAXPATHLEN];
1456     wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1457     wxString str( buffer );
1458     delete [] buffer;
1459
1460     return str;
1461 }
1462
1463 bool wxSetWorkingDirectory(const wxString& d)
1464 {
1465 #if defined(__OS2__)
1466     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1467 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1468     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1469 #elif defined(__WINDOWS__)
1470
1471 #ifdef __WIN32__
1472 #ifdef __WXWINCE__
1473     // No equivalent in WinCE
1474     return false;
1475 #else
1476     return (bool)(SetCurrentDirectory(d) != 0);
1477 #endif
1478 #else
1479     // Must change drive, too.
1480     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1481     if (isDriveSpec)
1482     {
1483         wxChar firstChar = d[0];
1484
1485         // To upper case
1486         if (firstChar > 90)
1487             firstChar = firstChar - 32;
1488
1489         // To a drive number
1490         unsigned int driveNo = firstChar - 64;
1491         if (driveNo > 0)
1492         {
1493             unsigned int noDrives;
1494             _dos_setdrive(driveNo, &noDrives);
1495         }
1496     }
1497     bool success = (chdir(WXSTRINGCAST d) == 0);
1498
1499     return success;
1500 #endif
1501
1502 #endif
1503 }
1504
1505 // Get the OS directory if appropriate (such as the Windows directory).
1506 // On non-Windows platform, probably just return the empty string.
1507 wxString wxGetOSDirectory()
1508 {
1509 #ifdef __WXWINCE__
1510     return wxString(wxT("\\Windows"));
1511 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1512     wxChar buf[256];
1513     GetWindowsDirectory(buf, 256);
1514     return wxString(buf);
1515 #elif defined(__WXMAC__)
1516     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1517 #else
1518     return wxEmptyString;
1519 #endif
1520 }
1521
1522 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1523 {
1524     size_t len = wxStrlen(pszFileName);
1525
1526     return len && wxIsPathSeparator(pszFileName[len - 1]);
1527 }
1528
1529 // find a file in a list of directories, returns false if not found
1530 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1531 {
1532     // we assume that it's not empty
1533     wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1534                  _T("empty file name in wxFindFileInPath"));
1535
1536     // skip path separator in the beginning of the file name if present
1537     if ( wxIsPathSeparator(*pszFile) )
1538         pszFile++;
1539
1540     // copy the path (strtok will modify it)
1541     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1542     wxStrcpy(szPath, pszPath);
1543
1544     wxString strFile;
1545     wxChar *pc, *save_ptr;
1546     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1547           pc != NULL;
1548           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1549     {
1550         // search for the file in this directory
1551         strFile = pc;
1552         if ( !wxEndsWithPathSeparator(pc) )
1553             strFile += wxFILE_SEP_PATH;
1554         strFile += pszFile;
1555
1556         if ( wxFileExists(strFile) ) {
1557             *pStr = strFile;
1558             break;
1559         }
1560     }
1561
1562     // suppress warning about unused variable save_ptr when wxStrtok() is a
1563     // macro which throws away its third argument
1564     save_ptr = pc;
1565
1566     delete [] szPath;
1567
1568     return pc != NULL;  // if true => we breaked from the loop
1569 }
1570
1571 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1572                              wxString *pstrPath,
1573                              wxString *pstrName,
1574                              wxString *pstrExt)
1575 {
1576     // it can be empty, but it shouldn't be NULL
1577     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1578
1579     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1580 }
1581
1582 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1583 {
1584 #if defined(__WXPALMOS__)
1585     return 0;
1586 #elif defined(__WXWINCE__)
1587     FILETIME creationTime, lastAccessTime, lastWriteTime;
1588     HANDLE fileHandle = ::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
1589         0, FILE_ATTRIBUTE_NORMAL, 0);
1590     if (fileHandle == INVALID_HANDLE_VALUE)
1591         return 0;
1592     else
1593     {
1594         if (GetFileTime(fileHandle, & creationTime, & lastAccessTime, & lastWriteTime))
1595         {
1596             CloseHandle(fileHandle);
1597
1598             wxDateTime dateTime;
1599             FILETIME ftLocal;
1600             if ( !::FileTimeToLocalFileTime(&lastWriteTime, &ftLocal) )
1601             {
1602                 wxLogLastError(_T("FileTimeToLocalFileTime"));
1603             }
1604
1605             SYSTEMTIME st;
1606             if ( !::FileTimeToSystemTime(&ftLocal, &st) )
1607             {
1608                 wxLogLastError(_T("FileTimeToSystemTime"));
1609             }
1610
1611             dateTime.Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
1612                 st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
1613             return dateTime.GetTicks();
1614         }
1615         else
1616             return 0;
1617     }
1618 #else
1619     wxStructStat buf;
1620     wxStat( filename, &buf);
1621
1622     return buf.st_mtime;
1623 #endif
1624 }
1625
1626
1627 // Parses the filterStr, returning the number of filters.
1628 // Returns 0 if none or if there's a problem.
1629 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1630
1631 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr, wxArrayString& descriptions, wxArrayString& filters)
1632 {
1633     descriptions.Clear();
1634     filters.Clear();
1635
1636     wxString str(filterStr);
1637
1638     wxString description, filter;
1639     int pos = 0;
1640     while( pos != wxNOT_FOUND )
1641     {
1642         pos = str.Find(wxT('|'));
1643         if ( pos == wxNOT_FOUND )
1644         {
1645             // if there are no '|'s at all in the string just take the entire
1646             // string as filter and make description empty for later autocompletion
1647             if ( filters.IsEmpty() )
1648             {
1649                 descriptions.Add(wxEmptyString);
1650                 filters.Add(filterStr);
1651             }
1652             else
1653             {
1654                 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1655             }
1656
1657             break;
1658         }
1659
1660         description = str.Left(pos);
1661         str = str.Mid(pos + 1);
1662         pos = str.Find(wxT('|'));
1663         if ( pos == wxNOT_FOUND )
1664         {
1665             filter = str;
1666         }
1667         else
1668         {
1669             filter = str.Left(pos);
1670             str = str.Mid(pos + 1);
1671         }
1672
1673         descriptions.Add(description);
1674         filters.Add(filter);
1675     }
1676
1677 #if defined(__WXMOTIF__)
1678     // split it so there is one wildcard per entry
1679     for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1680     {
1681         pos = filters[i].Find(wxT(';'));
1682         if (pos != wxNOT_FOUND)
1683         {
1684             // first split only filters
1685             descriptions.Insert(descriptions[i],i+1);
1686             filters.Insert(filters[i].Mid(pos+1),i+1);
1687             filters[i]=filters[i].Left(pos);
1688
1689             // autoreplace new filter in description with pattern:
1690             //     C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1691             // cause split into:
1692             //     C/C++ Files(*.cpp)|*.cpp
1693             //     C/C++ Files(*.c;*.h)|*.c;*.h
1694             // and next iteration cause another split into:
1695             //     C/C++ Files(*.cpp)|*.cpp
1696             //     C/C++ Files(*.c)|*.c
1697             //     C/C++ Files(*.h)|*.h
1698             for ( size_t k=i;k<i+2;k++ )
1699             {
1700                 pos = descriptions[k].Find(filters[k]);
1701                 if (pos != wxNOT_FOUND)
1702                 {
1703                     wxString before = descriptions[k].Left(pos);
1704                     wxString after = descriptions[k].Mid(pos+filters[k].Len());
1705                     pos = before.Find(_T('('),true);
1706                     if (pos>before.Find(_T(')'),true))
1707                     {
1708                         before = before.Left(pos+1);
1709                         before << filters[k];
1710                         pos = after.Find(_T(')'));
1711                         int pos1 = after.Find(_T('('));
1712                         if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1713                         {
1714                             before << after.Mid(pos);
1715                             descriptions[k] = before;
1716                         }
1717                     }
1718                 }
1719             }
1720         }
1721     }
1722 #endif
1723
1724     // autocompletion
1725     for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1726     {
1727         if ( descriptions[j] == wxEmptyString && filters[j] != wxEmptyString )
1728         {
1729             descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1730         }
1731     }
1732
1733     return filters.GetCount();
1734 }
1735
1736
1737 //------------------------------------------------------------------------
1738 // wild character routines
1739 //------------------------------------------------------------------------
1740
1741 bool wxIsWild( const wxString& pattern )
1742 {
1743     wxString tmp = pattern;
1744     wxChar *pat = WXSTRINGCAST(tmp);
1745     while (*pat)
1746     {
1747         switch (*pat++)
1748         {
1749         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1750             return true;
1751         case wxT('\\'):
1752             if (!*pat++)
1753                 return false;
1754         }
1755     }
1756     return false;
1757 }
1758
1759 /*
1760 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1761 *
1762 * The match procedure is public domain code (from ircII's reg.c)
1763 */
1764
1765 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1766 {
1767         if (text.empty())
1768         {
1769                 /* Match if both are empty. */
1770                 return pat.empty();
1771         }
1772
1773         const wxChar *m = pat.c_str(),
1774         *n = text.c_str(),
1775         *ma = NULL,
1776         *na = NULL,
1777         *mp = NULL,
1778         *np = NULL;
1779         int just = 0,
1780         pcount = 0,
1781         acount = 0,
1782         count = 0;
1783
1784         if (dot_special && (*n == wxT('.')))
1785         {
1786                 /* Never match so that hidden Unix files
1787                  * are never found. */
1788                 return false;
1789         }
1790
1791         for (;;)
1792         {
1793                 if (*m == wxT('*'))
1794                 {
1795                         ma = ++m;
1796                         na = n;
1797                         just = 1;
1798                         mp = NULL;
1799                         acount = count;
1800                 }
1801                 else if (*m == wxT('?'))
1802                 {
1803                         m++;
1804                         if (!*n++)
1805                         return false;
1806                 }
1807                 else
1808                 {
1809                         if (*m == wxT('\\'))
1810                         {
1811                                 m++;
1812                                 /* Quoting "nothing" is a bad thing */
1813                                 if (!*m)
1814                                 return false;
1815                         }
1816                         if (!*m)
1817                         {
1818                                 /*
1819                                 * If we are out of both strings or we just
1820                                 * saw a wildcard, then we can say we have a
1821                                 * match
1822                                 */
1823                                 if (!*n)
1824                                 return true;
1825                                 if (just)
1826                                 return true;
1827                                 just = 0;
1828                                 goto not_matched;
1829                         }
1830                         /*
1831                         * We could check for *n == NULL at this point, but
1832                         * since it's more common to have a character there,
1833                         * check to see if they match first (m and n) and
1834                         * then if they don't match, THEN we can check for
1835                         * the NULL of n
1836                         */
1837                         just = 0;
1838                         if (*m == *n)
1839                         {
1840                                 m++;
1841                                 if (*n == wxT(' '))
1842                                 mp = NULL;
1843                                 count++;
1844                                 n++;
1845                         }
1846                         else
1847                         {
1848
1849                                 not_matched:
1850
1851                                 /*
1852                                 * If there are no more characters in the
1853                                 * string, but we still need to find another
1854                                 * character (*m != NULL), then it will be
1855                                 * impossible to match it
1856                                 */
1857                                 if (!*n)
1858                                 return false;
1859                                 if (mp)
1860                                 {
1861                                         m = mp;
1862                                         if (*np == wxT(' '))
1863                                         {
1864                                                 mp = NULL;
1865                                                 goto check_percent;
1866                                         }
1867                                         n = ++np;
1868                                         count = pcount;
1869                                 }
1870                                 else
1871                                 check_percent:
1872
1873                                 if (ma)
1874                                 {
1875                                         m = ma;
1876                                         n = ++na;
1877                                         count = acount;
1878                                 }
1879                                 else
1880                                 return false;
1881                         }
1882                 }
1883         }
1884 }
1885
1886 // Return the type of an open file
1887 //
1888 // Some file types on some platforms seem seekable but in fact are not.
1889 // The main use of this function is to allow such cases to be detected
1890 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1891 //
1892 // This is important for the archive streams, which benefit greatly from
1893 // being able to seek on a stream, but which will produce corrupt archives
1894 // if they unknowingly seek on a non-seekable stream.
1895 //
1896 // wxFILE_KIND_DISK is a good catch all return value, since other values
1897 // disable features of the archive streams. Some other value must be returned
1898 // for a file type that appears seekable but isn't.
1899 //
1900 // Known examples:
1901 //   *  Pipes on Windows
1902 //   *  Files on VMS with a record format other than StreamLF
1903 //
1904 wxFileKind wxGetFileKind(int fd)
1905 {
1906 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1907     switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1908     {
1909         case FILE_TYPE_CHAR:
1910             return wxFILE_KIND_TERMINAL;
1911         case FILE_TYPE_DISK:
1912             return wxFILE_KIND_DISK;
1913         case FILE_TYPE_PIPE:
1914             return wxFILE_KIND_PIPE;
1915     }
1916
1917     return wxFILE_KIND_UNKNOWN;
1918
1919 #elif defined(__UNIX__)
1920     if (isatty(fd))
1921         return wxFILE_KIND_TERMINAL;
1922
1923     struct stat st;
1924     fstat(fd, &st);
1925
1926     if (S_ISFIFO(st.st_mode))
1927         return wxFILE_KIND_PIPE;
1928     if (!S_ISREG(st.st_mode))
1929         return wxFILE_KIND_UNKNOWN;
1930
1931     #if defined(__VMS__)
1932         if (st.st_fab_rfm != FAB$C_STMLF)
1933             return wxFILE_KIND_UNKNOWN;
1934     #endif
1935
1936     return wxFILE_KIND_DISK;
1937
1938 #else
1939     (void)fd;
1940     return wxFILE_KIND_DISK;
1941 #endif
1942 }
1943
1944 #ifdef __VISUALC__
1945     #pragma warning(default:4706)   // assignment within conditional expression
1946 #endif // VC++