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