src/common/filefn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        filefn.cpp
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "filefn.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26 #include "wx/defs.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 #include "wx/utils.h"
  33 #include "wx/intl.h"
  34 #include "wx/file.h"
  35 #include "wx/filename.h"
  36 #include "wx/dir.h"
  37
  38 // there are just too many of those...
  39 #ifdef __VISUALC__
  40     #pragma warning(disable:4706)   // assignment within conditional expression
  41 #endif // VC++
  42
  43 #include <ctype.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <string.h>
  47 #if !defined(__WATCOMC__)
  48     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  49         #include <errno.h>
  50     #endif
  51 #endif
  52
  53 #if defined(__WXMAC__)
  54   #include  "wx/mac/private.h"  // includes mac headers
  55 #endif
  56
  57 #ifdef __WXWINCE__
  58 #include "wx/msw/wince/time.h"
  59 #include "wx/msw/private.h"
  60 #else
  61 #include <time.h>
  62 #endif
  63
  64 #ifdef __WXWINCE__
  65 // Nothing
  66 #elif !defined(__MWERKS__)
  67     #include <sys/types.h>
  68     #include <sys/stat.h>
  69 #else
  70 #ifdef __MACH__
  71 #include <sys/types.h>
  72 #include <utime.h>
  73 #include <sys/stat.h>
  74 #include <unistd.h>
  75 #else
  76     #include <stat.h>
  77     #include <unistd.h>
  78     #include <unix.h>
  79     #include <fcntl.h>
  80 #endif
  81 #endif
  82
  83 #ifdef __UNIX__
  84     #include <unistd.h>
  85     #include <dirent.h>
  86     #include <fcntl.h>
  87 #endif
  88
  89 #ifdef __WXPM__
  90     #include <process.h>
  91     #include "wx/os2/private.h"
  92 #endif
  93 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  94 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__)
  95     #include <direct.h>
  96     #include <dos.h>
  97     #include <io.h>
  98 #endif // __WINDOWS__
  99 #endif // native Win compiler
 100
 101 #if defined(__DOS__)
 102     #ifdef __WATCOMC__
 103         #include <direct.h>
 104         #include <dos.h>
 105         #include <io.h>
 106     #endif
 107     #ifdef __DJGPP__
 108         #include <unistd.h>
 109     #endif
 110 #endif
 111
 112 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
 113                     // this (3.1 I believe) and how to test for it.
 114                     // If this works for Borland 4.0 as well, then no worries.
 115     #include <dir.h>
 116 #endif
 117
 118 #ifdef __SALFORDC__
 119     #include <dir.h>
 120     #include <unix.h>
 121 #endif
 122
 123 #include "wx/log.h"
 124
 125 // No, Cygwin doesn't appear to have fnmatch.h after all.
 126 #if defined(HAVE_FNMATCH_H)
 127     #include "fnmatch.h"
 128 #endif
 129
 130 #ifdef __WINDOWS__
 131     #include "wx/msw/wrapwin.h"
 132     #include "wx/msw/mslu.h"
 133
 134     // for _getcwd
 135     #ifdef __MINGW32__
 136         #include <io.h>
 137     #endif
 138
 139     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
 140     //
 141     // note that it must be included after <windows.h>
 142     #ifdef __GNUWIN32__
 143         #ifdef __CYGWIN__
 144             #include <sys/cygwin.h>
 145         #endif
 146     #endif // __GNUWIN32__
 147 #endif // __WINDOWS__
 148
 149 // TODO: Borland probably has _wgetcwd as well?
 150 #ifdef _MSC_VER
 151     #define HAVE_WGETCWD
 152 #endif
 153
 154 // ----------------------------------------------------------------------------
 155 // constants
 156 // ----------------------------------------------------------------------------
 157
 158 #ifndef _MAXPATHLEN
 159     #define _MAXPATHLEN 1024
 160 #endif
 161
 162 #ifdef __WXMAC__
 163 #  ifdef __DARWIN__
 164 #    include "MoreFilesX.h"
 165 #  else
 166 #    include "MoreFiles.h"
 167 #    include "MoreFilesExtras.h"
 168 #    include "FullPath.h"
 169 #    include "FSpCompat.h"
 170 #  endif
 171 #endif
 172
 173 // ----------------------------------------------------------------------------
 174 // private globals
 175 // ----------------------------------------------------------------------------
 176
 177 // MT-FIXME: get rid of this horror and all code using it
 178 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 179
 180 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 181 //
 182 // VisualAge C++ V4.0 cannot have any external linkage const decs
 183 // in headers included by more than one primary source
 184 //
 185 const off_t wxInvalidOffset = (off_t)-1;
 186 #endif
 187
 188 // ----------------------------------------------------------------------------
 189 // macros
 190 // ----------------------------------------------------------------------------
 191
 192 // we need to translate Mac filenames before passing them to OS functions
 193 #define OS_FILENAME(s) (s.fn_str())
 194
 195 // ============================================================================
 196 // implementation
 197 // ============================================================================
 198
 199 #if defined(__WXMAC__) && !defined(__DARWIN__) && !defined(wxUSE_UNICODE)
 200
 201 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 202 {
 203     return stat( wxMacStringToCString( file_name ), buf );
 204 }
 205
 206 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 207 {
 208     return access( wxMacStringToCString( pathname ), mode );
 209 }
 210
 211 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 212 {
 213     return open( wxMacStringToCString( pathname ), flags, mode );
 214 }
 215
 216 #endif
 217
 218 #ifdef wxNEED_WX_UNISTD_H
 219
 220 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 221 {
 222     return stat( wxConvFile.cWX2MB( file_name ), buf );
 223 }
 224
 225 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 226 {
 227     return access( wxConvFile.cWX2MB( pathname ), mode );
 228 }
 229
 230 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 231 {
 232     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 233 }
 234
 235 #endif
 236    // wxNEED_WX_UNISTD_H
 237
 238 // ----------------------------------------------------------------------------
 239 // wxPathList
 240 // ----------------------------------------------------------------------------
 241
 242 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 243
 244 static inline wxChar* MYcopystring(const wxString& s)
 245 {
 246     wxChar* copy = new wxChar[s.length() + 1];
 247     return wxStrcpy(copy, s.c_str());
 248 }
 249
 250 static inline wxChar* MYcopystring(const wxChar* s)
 251 {
 252     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 253     return wxStrcpy(copy, s);
 254 }
 255
 256 void wxPathList::Add (const wxString& path)
 257 {
 258     wxStringList::Add (WXSTRINGCAST path);
 259 }
 260
 261 // Add paths e.g. from the PATH environment variable
 262 void wxPathList::AddEnvList (const wxString& envVariable)
 263 {
 264     // No environment variables on WinCE
 265 #ifndef __WXWINCE__
 266     static const wxChar PATH_TOKS[] =
 267 #ifdef __WINDOWS__
 268         /*
 269         The space has been removed from the tokenizers, otherwise a
 270         path such as "C:\Program Files" would be split into 2 paths:
 271         "C:\Program" and "Files"
 272         */
 273 //        wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 274         wxT(";"); // Don't seperate with colon in DOS (used for drive)
 275 #else
 276         wxT(" :;");
 277 #endif
 278
 279     wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 280     if (val && *val)
 281     {
 282         wxChar *s = MYcopystring (val);
 283         wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 284
 285         if (token)
 286         {
 287             Add(token);
 288             while (token)
 289             {
 290                 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
 291                     != NULL )
 292                 {
 293                     Add(token);
 294                 }
 295             }
 296         }
 297
 298         // suppress warning about unused variable save_ptr when wxStrtok() is a
 299         // macro which throws away its third argument
 300         save_ptr = token;
 301
 302         delete [] s;
 303     }
 304 #endif
 305 }
 306
 307 // Given a full filename (with path), ensure that that file can
 308 // be accessed again USING FILENAME ONLY by adding the path
 309 // to the list if not already there.
 310 void wxPathList::EnsureFileAccessible (const wxString& path)
 311 {
 312     wxString path_only(wxPathOnly(path));
 313     if ( !path_only.IsEmpty() )
 314     {
 315         if ( !Member(path_only) )
 316             Add(path_only);
 317     }
 318 }
 319
 320 bool wxPathList::Member (const wxString& path)
 321 {
 322   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 323   {
 324       wxString path2( node->GetData() );
 325       if (
 326 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 327       // Case INDEPENDENT
 328           path.CompareTo (path2, wxString::ignoreCase) == 0
 329 #else
 330       // Case sensitive File System
 331           path.CompareTo (path2) == 0
 332 #endif
 333         )
 334         return TRUE;
 335   }
 336   return FALSE;
 337 }
 338
 339 wxString wxPathList::FindValidPath (const wxString& file)
 340 {
 341   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 342     return wxString(wxFileFunctionsBuffer);
 343
 344   wxChar buf[_MAXPATHLEN];
 345   wxStrcpy(buf, wxFileFunctionsBuffer);
 346
 347   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 348   filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 349
 350   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 351     {
 352       const wxChar *path = node->GetData();
 353       wxStrcpy (wxFileFunctionsBuffer, path);
 354       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 355       if (ch != wxT('\\') && ch != wxT('/'))
 356         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 357       wxStrcat (wxFileFunctionsBuffer, filename);
 358 #ifdef __WINDOWS__
 359       wxUnix2DosFilename (wxFileFunctionsBuffer);
 360 #endif
 361       if (wxFileExists (wxFileFunctionsBuffer))
 362       {
 363         return wxString(wxFileFunctionsBuffer);        // Found!
 364       }
 365     }                                // for()
 366
 367   return wxEmptyString;                    // Not found
 368 }
 369
 370 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 371 {
 372     wxString f = FindValidPath(file);
 373     if ( wxIsAbsolutePath(f) )
 374         return f;
 375
 376     wxString buf;
 377     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 378
 379     if ( !wxEndsWithPathSeparator(buf) )
 380     {
 381         buf += wxFILE_SEP_PATH;
 382     }
 383     buf += f;
 384
 385     return buf;
 386 }
 387
 388 bool
 389 wxFileExists (const wxString& filename)
 390 {
 391     // we must use GetFileAttributes() instead of the ANSI C functions because
 392     // it can cope with network (UNC) paths unlike them
 393 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 394     DWORD ret = ::GetFileAttributes(filename);
 395
 396     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 397 #else // !__WIN32__
 398     wxStructStat st;
 399     return wxStat(filename, &st) == 0 && (st.st_mode & S_IFREG);
 400 #endif // __WIN32__/!__WIN32__
 401 }
 402
 403 bool
 404 wxIsAbsolutePath (const wxString& filename)
 405 {
 406     if (filename != wxT(""))
 407     {
 408 #if defined(__WXMAC__) && !defined(__DARWIN__)
 409         // Classic or Carbon CodeWarrior like
 410         // Carbon with Apple DevTools is Unix like
 411
 412         // This seems wrong to me, but there is no fix. since
 413         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 414         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 415         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 416             return TRUE ;
 417 #else
 418         // Unix like or Windows
 419         if (filename[0] == wxT('/'))
 420             return TRUE;
 421 #endif
 422 #ifdef __VMS__
 423         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 424             return TRUE;
 425 #endif
 426 #ifdef __WINDOWS__
 427         // MSDOS like
 428         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 429             return TRUE;
 430 #endif
 431     }
 432     return FALSE ;
 433 }
 434
 435 /*
 436  * Strip off any extension (dot something) from end of file,
 437  * IF one exists. Inserts zero into buffer.
 438  *
 439  */
 440
 441 void wxStripExtension(wxChar *buffer)
 442 {
 443   int len = wxStrlen(buffer);
 444   int i = len-1;
 445   while (i > 0)
 446   {
 447     if (buffer[i] == wxT('.'))
 448     {
 449       buffer[i] = 0;
 450       break;
 451     }
 452     i --;
 453   }
 454 }
 455
 456 void wxStripExtension(wxString& buffer)
 457 {
 458   size_t len = buffer.Length();
 459   size_t i = len-1;
 460   while (i > 0)
 461   {
 462     if (buffer.GetChar(i) == wxT('.'))
 463     {
 464       buffer = buffer.Left(i);
 465       break;
 466     }
 467     i --;
 468   }
 469 }
 470
 471 // Destructive removal of /./ and /../ stuff
 472 wxChar *wxRealPath (wxChar *path)
 473 {
 474 #ifdef __WXMSW__
 475   static const wxChar SEP = wxT('\\');
 476   wxUnix2DosFilename(path);
 477 #else
 478   static const wxChar SEP = wxT('/');
 479 #endif
 480   if (path[0] && path[1]) {
 481     /* MATTHEW: special case "/./x" */
 482     wxChar *p;
 483     if (path[2] == SEP && path[1] == wxT('.'))
 484       p = &path[0];
 485     else
 486       p = &path[2];
 487     for (; *p; p++)
 488       {
 489         if (*p == SEP)
 490           {
 491             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 492               {
 493                 wxChar *q;
 494                 for (q = p - 1; q >= path && *q != SEP; q--)
 495                 {
 496                     // Empty
 497                 }
 498
 499                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 500                     && (q - 1 <= path || q[-1] != SEP))
 501                   {
 502                     wxStrcpy (q, p + 3);
 503                     if (path[0] == wxT('\0'))
 504                       {
 505                         path[0] = SEP;
 506                         path[1] = wxT('\0');
 507                       }
 508 #ifdef __WXMSW__
 509                     /* Check that path[2] is NULL! */
 510                     else if (path[1] == wxT(':') && !path[2])
 511                       {
 512                         path[2] = SEP;
 513                         path[3] = wxT('\0');
 514                       }
 515 #endif
 516                     p = q - 1;
 517                   }
 518               }
 519             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 520               wxStrcpy (p, p + 2);
 521           }
 522       }
 523   }
 524   return path;
 525 }
 526
 527 // Must be destroyed
 528 wxChar *wxCopyAbsolutePath(const wxString& filename)
 529 {
 530   if (filename == wxT(""))
 531     return (wxChar *) NULL;
 532
 533   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 534     wxChar  buf[_MAXPATHLEN];
 535     buf[0] = wxT('\0');
 536     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 537     wxChar ch = buf[wxStrlen(buf) - 1];
 538 #ifdef __WXMSW__
 539     if (ch != wxT('\\') && ch != wxT('/'))
 540         wxStrcat(buf, wxT("\\"));
 541 #else
 542     if (ch != wxT('/'))
 543         wxStrcat(buf, wxT("/"));
 544 #endif
 545     wxStrcat(buf, wxFileFunctionsBuffer);
 546     return MYcopystring( wxRealPath(buf) );
 547   }
 548   return MYcopystring( wxFileFunctionsBuffer );
 549 }
 550
 551 /*-
 552  Handles:
 553    ~/ => home dir
 554    ~user/ => user's home dir
 555    If the environment variable a = "foo" and b = "bar" then:
 556    Unix:
 557         $a        =>        foo
 558         $a$b        =>        foobar
 559         $a.c        =>        foo.c
 560         xxx$a        =>        xxxfoo
 561         ${a}!        =>        foo!
 562         $(b)!        =>        bar!
 563         \$a        =>        \$a
 564    MSDOS:
 565         $a        ==>        $a
 566         $(a)        ==>        foo
 567         $(a)$b        ==>        foo$b
 568         $(a)$(b)==>        foobar
 569         test.$$        ==>        test.$$
 570  */
 571
 572 /* input name in name, pathname output to buf. */
 573
 574 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 575 {
 576     register wxChar *d, *s, *nm;
 577     wxChar          lnm[_MAXPATHLEN];
 578     int             q;
 579
 580     // Some compilers don't like this line.
 581 //    const wxChar    trimchars[] = wxT("\n \t");
 582
 583     wxChar      trimchars[4];
 584     trimchars[0] = wxT('\n');
 585     trimchars[1] = wxT(' ');
 586     trimchars[2] = wxT('\t');
 587     trimchars[3] = 0;
 588
 589 #ifdef __WXMSW__
 590      const wxChar     SEP = wxT('\\');
 591 #else
 592      const wxChar     SEP = wxT('/');
 593 #endif
 594     buf[0] = wxT('\0');
 595     if (name == NULL || *name == wxT('\0'))
 596         return buf;
 597     nm = MYcopystring(name); // Make a scratch copy
 598     wxChar *nm_tmp = nm;
 599
 600     /* Skip leading whitespace and cr */
 601     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 602         nm++;
 603     /* And strip off trailing whitespace and cr */
 604     s = nm + (q = wxStrlen(nm)) - 1;
 605     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 606         *s = wxT('\0');
 607
 608     s = nm;
 609     d = lnm;
 610 #ifdef __WXMSW__
 611     q = FALSE;
 612 #else
 613     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 614 #endif
 615
 616     /* Expand inline environment variables */
 617 #ifdef __VISAGECPP__
 618     while (*d)
 619     {
 620       *d++ = *s;
 621       if(*s == wxT('\\'))
 622       {
 623         *(d - 1) = *++s;
 624         if (*d)
 625         {
 626           s++;
 627           continue;
 628         }
 629         else
 630            break;
 631       }
 632       else
 633 #else
 634     while ((*d++ = *s) != 0) {
 635 #  ifndef __WXMSW__
 636         if (*s == wxT('\\')) {
 637             if ((*(d - 1) = *++s)) {
 638                 s++;
 639                 continue;
 640             } else
 641                 break;
 642         } else
 643 #  endif
 644 #endif
 645             // No env variables on WinCE
 646 #ifndef __WXWINCE__
 647 #ifdef __WXMSW__
 648         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 649 #else
 650         if (*s++ == wxT('$'))
 651 #endif
 652         {
 653             register wxChar  *start = d;
 654             register int     braces = (*s == wxT('{') || *s == wxT('('));
 655             register wxChar  *value;
 656             while ((*d++ = *s) != 0)
 657                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 658                     break;
 659                 else
 660                     s++;
 661             *--d = 0;
 662             value = wxGetenv(braces ? start + 1 : start);
 663             if (value) {
 664                 for ((d = start - 1); (*d++ = *value++) != 0;)
 665                 {
 666                     // Empty
 667                 }
 668
 669                 d--;
 670                 if (braces && *s)
 671                     s++;
 672             }
 673         }
 674 #endif
 675         // __WXWINCE__
 676     }
 677
 678     /* Expand ~ and ~user */
 679     nm = lnm;
 680     if (nm[0] == wxT('~') && !q)
 681     {
 682         /* prefix ~ */
 683         if (nm[1] == SEP || nm[1] == 0)
 684         {        /* ~/filename */
 685         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 686             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 687                 if (*++nm)
 688                     nm++;
 689             }
 690         } else
 691         {                /* ~user/filename */
 692             register wxChar  *nnm;
 693             register wxChar  *home;
 694             for (s = nm; *s && *s != SEP; s++)
 695             {
 696                 // Empty
 697             }
 698             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 699             was_sep = (*s == SEP);
 700             nnm = *s ? s + 1 : s;
 701             *s = 0;
 702         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 703             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 704                if (was_sep) /* replace only if it was there: */
 705                    *s = SEP;
 706                 s = NULL;
 707             } else {
 708                 nm = nnm;
 709                 s = home;
 710             }
 711         }
 712     }
 713
 714     d = buf;
 715     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 716         /* Copy home dir */
 717         while (wxT('\0') != (*d++ = *s++))
 718           /* loop */;
 719         // Handle root home
 720         if (d - 1 > buf && *(d - 2) != SEP)
 721           *(d - 1) = SEP;
 722     }
 723     s = nm;
 724     while ((*d++ = *s++) != 0)
 725     {
 726         // Empty
 727     }
 728     delete[] nm_tmp; // clean up alloc
 729     /* Now clean up the buffer */
 730     return wxRealPath(buf);
 731 }
 732
 733 /* Contract Paths to be build upon an environment variable
 734    component:
 735
 736    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 737
 738    The call wxExpandPath can convert these back!
 739  */
 740 wxChar *
 741 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 742 {
 743   static wxChar dest[_MAXPATHLEN];
 744
 745   if (filename == wxT(""))
 746     return (wxChar *) NULL;
 747
 748   wxStrcpy (dest, WXSTRINGCAST filename);
 749 #ifdef __WXMSW__
 750   wxUnix2DosFilename(dest);
 751 #endif
 752
 753   // Handle environment
 754   const wxChar *val = (const wxChar *) NULL;
 755 #ifndef __WXWINCE__
 756   wxChar *tcp = (wxChar *) NULL;
 757   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 758      (tcp = wxStrstr (dest, val)) != NULL)
 759     {
 760         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 761         *tcp++ = wxT('$');
 762         *tcp++ = wxT('{');
 763         wxStrcpy (tcp, WXSTRINGCAST envname);
 764         wxStrcat (tcp, wxT("}"));
 765         wxStrcat (tcp, wxFileFunctionsBuffer);
 766     }
 767 #endif
 768
 769   // Handle User's home (ignore root homes!)
 770   size_t len = 0;
 771   if ((val = wxGetUserHome (user)) != NULL &&
 772       (len = wxStrlen(val)) > 2 &&
 773       wxStrncmp(dest, val, len) == 0)
 774     {
 775       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 776       if (user != wxT(""))
 777              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 778       wxStrcat(wxFileFunctionsBuffer, dest + len);
 779       wxStrcpy (dest, wxFileFunctionsBuffer);
 780     }
 781
 782   return dest;
 783 }
 784
 785 // Return just the filename, not the path (basename)
 786 wxChar *wxFileNameFromPath (wxChar *path)
 787 {
 788     wxString p = path;
 789     wxString n = wxFileNameFromPath(p);
 790
 791     return path + p.length() - n.length();
 792 }
 793
 794 wxString wxFileNameFromPath (const wxString& path)
 795 {
 796     wxString name, ext;
 797     wxFileName::SplitPath(path, NULL, &name, &ext);
 798
 799     wxString fullname = name;
 800     if ( !ext.empty() )
 801     {
 802         fullname << wxFILE_SEP_EXT << ext;
 803     }
 804
 805     return fullname;
 806 }
 807
 808 // Return just the directory, or NULL if no directory
 809 wxChar *
 810 wxPathOnly (wxChar *path)
 811 {
 812     if (path && *path)
 813     {
 814         static wxChar buf[_MAXPATHLEN];
 815
 816         // Local copy
 817         wxStrcpy (buf, path);
 818
 819         int l = wxStrlen(path);
 820         int i = l - 1;
 821
 822         // Search backward for a backward or forward slash
 823         while (i > -1)
 824         {
 825 #if defined(__WXMAC__) && !defined(__DARWIN__)
 826             // Classic or Carbon CodeWarrior like
 827             // Carbon with Apple DevTools is Unix like
 828             if (path[i] == wxT(':') )
 829             {
 830                 buf[i] = 0;
 831                 return buf;
 832             }
 833 #else
 834             // Unix like or Windows
 835             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 836             {
 837                 buf[i] = 0;
 838                 return buf;
 839             }
 840 #endif
 841 #ifdef __VMS__
 842             if (path[i] == wxT(']'))
 843             {
 844                 buf[i+1] = 0;
 845                 return buf;
 846             }
 847 #endif
 848             i --;
 849         }
 850
 851 #if defined(__WXMSW__) || defined(__WXPM__)
 852         // Try Drive specifier
 853         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 854         {
 855             // A:junk --> A:. (since A:.\junk Not A:\junk)
 856             buf[2] = wxT('.');
 857             buf[3] = wxT('\0');
 858             return buf;
 859         }
 860 #endif
 861     }
 862     return (wxChar *) NULL;
 863 }
 864
 865 // Return just the directory, or NULL if no directory
 866 wxString wxPathOnly (const wxString& path)
 867 {
 868     if (path != wxT(""))
 869     {
 870         wxChar buf[_MAXPATHLEN];
 871
 872         // Local copy
 873         wxStrcpy (buf, WXSTRINGCAST path);
 874
 875         int l = path.Length();
 876         int i = l - 1;
 877
 878         // Search backward for a backward or forward slash
 879         while (i > -1)
 880         {
 881 #if defined(__WXMAC__) && !defined(__DARWIN__)
 882             // Classic or Carbon CodeWarrior like
 883             // Carbon with Apple DevTools is Unix like
 884             if (path[i] == wxT(':') )
 885             {
 886                 buf[i] = 0;
 887                 return wxString(buf);
 888             }
 889 #else
 890             // Unix like or Windows
 891             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 892             {
 893                 buf[i] = 0;
 894                 return wxString(buf);
 895             }
 896 #endif
 897 #ifdef __VMS__
 898             if (path[i] == wxT(']'))
 899             {
 900                 buf[i+1] = 0;
 901                 return wxString(buf);
 902             }
 903 #endif
 904             i --;
 905         }
 906
 907 #if defined(__WXMSW__) || defined(__WXPM__)
 908         // Try Drive specifier
 909         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 910         {
 911             // A:junk --> A:. (since A:.\junk Not A:\junk)
 912             buf[2] = wxT('.');
 913             buf[3] = wxT('\0');
 914             return wxString(buf);
 915         }
 916 #endif
 917     }
 918     return wxString(wxT(""));
 919 }
 920
 921 // Utility for converting delimiters in DOS filenames to UNIX style
 922 // and back again - or we get nasty problems with delimiters.
 923 // Also, convert to lower case, since case is significant in UNIX.
 924
 925 #if defined(__WXMAC__)
 926 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 927 {
 928 #ifdef __DARWIN__
 929     int         i;
 930     int         j;
 931     OSErr       theErr;
 932     OSStatus    theStatus;
 933     Boolean     isDirectory = FALSE;
 934     Str255    theParentPath = "\p";
 935     FSSpec      theParentSpec;
 936     FSRef       theParentRef;
 937     char        theFileName[FILENAME_MAX];
 938     char        thePath[FILENAME_MAX];
 939
 940     strcpy(thePath, "");
 941
 942     // GD: Separate file name from path and make a FSRef to the parent
 943     //     directory. This is necessary since FSRefs cannot reference files
 944     //     that have not yet been created.
 945     //     Based on example code from Apple Technical Note TN2022
 946     //       http://developer.apple.com/technotes/tn/tn2022.html
 947
 948     // check whether we are converting a directory
 949     isDirectory = ((spec->name)[spec->name[0]] == ':');
 950     // count length of file name
 951     for (i = spec->name[0] - (isDirectory ? 1 : 0); ((spec->name[i] != ':') && (i > 0)); i--);
 952     // copy file name
 953     //   prepend path separator since it will later be appended to the path
 954     theFileName[0] = wxFILE_SEP_PATH;
 955     for (j = i + 1; j <= spec->name[0] - (isDirectory ? 1 : 0); j++) {
 956         theFileName[j - i] = spec->name[j];
 957     }
 958     theFileName[j - i] = '\0';
 959     // copy path if any
 960     for (j = 1; j <= i; j++) {
 961         theParentPath[++theParentPath[0]] = spec->name[j];
 962     }
 963     theErr = FSMakeFSSpec(spec->vRefNum, spec->parID, theParentPath, &theParentSpec);
 964     if (theErr == noErr) {
 965         // convert the FSSpec to an FSRef
 966         theErr = FSpMakeFSRef(&theParentSpec, &theParentRef);
 967     }
 968     if (theErr == noErr) {
 969         // get the POSIX path associated with the FSRef
 970         theStatus = FSRefMakePath(&theParentRef,
 971                                   (UInt8 *)thePath, sizeof(thePath));
 972     }
 973     if (theStatus == noErr) {
 974         // append file name to path
 975         //   includes previously prepended path separator
 976         strcat(thePath, theFileName);
 977     }
 978
 979     // create path string for return value
 980     wxString result( thePath , wxConvLocal) ;
 981 #else
 982     Handle    myPath ;
 983     short     length ;
 984
 985     // get length of path and allocate handle
 986     FSpGetFullPath( spec , &length , &myPath ) ;
 987     ::SetHandleSize( myPath , length + 1 ) ;
 988     ::HLock( myPath ) ;
 989     (*myPath)[length] = 0 ;
 990     if ((length > 0) && ((*myPath)[length-1] == ':'))
 991         (*myPath)[length-1] = 0 ;
 992
 993     // create path string for return value
 994     wxString result = wxMacMakeStringFromCString( *myPath ) ;
 995
 996     // free allocated handle
 997     ::HUnlock( myPath ) ;
 998     ::DisposeHandle( myPath ) ;
 999 #endif
1000
1001     return result ;
1002 }
1003 #ifndef __DARWIN__
1004 // Mac file names are POSIX (Unix style) under Darwin
1005 // therefore the conversion functions below are not needed
1006
1007 static wxChar sMacFileNameConversion[ 1000 ] ;
1008 static char scMacFileNameConversion[ 1000 ] ;
1009
1010 #endif
1011 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
1012 {
1013     OSStatus err = noErr ;
1014 #ifdef __DARWIN__
1015     FSRef theRef;
1016
1017     // get the FSRef associated with the POSIX path
1018     err = FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
1019     // convert the FSRef to an FSSpec
1020     err = FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
1021 #else
1022     if ( strchr( path , ':' ) == NULL )
1023     {
1024         // try whether it is a volume / or a mounted volume
1025         strncpy( scMacFileNameConversion , path , 1000 ) ;
1026         scMacFileNameConversion[998] = 0 ;
1027         strcat( scMacFileNameConversion , ":" ) ;
1028         err = FSpLocationFromFullPath( strlen(scMacFileNameConversion) , scMacFileNameConversion , spec ) ;
1029     }
1030     else
1031     {
1032         err = FSpLocationFromFullPath( strlen(path) , path , spec ) ;
1033     }
1034 #endif
1035 }
1036
1037 #if wxUSE_UNICODE
1038 WXDLLEXPORT void wxMacFilename2FSSpec( const wxChar *path , FSSpec *spec )
1039 {
1040     return wxMacFilename2FSSpec( wxMacStringToCString( wxString( path ) ) , spec ) ;
1041 }
1042 #endif
1043
1044 #ifndef __DARWIN__
1045
1046 wxString wxMac2UnixFilename (const wxChar *str)
1047 {
1048     wxChar *s = sMacFileNameConversion ;
1049     wxStrcpy( s , str ) ;
1050     if (s)
1051     {
1052         memmove( s+1 , s ,wxStrlen( s ) + 1 * sizeof(wxChar)) ;
1053         if ( *s == ':' )
1054             *s = '.' ;
1055         else
1056             *s = '/' ;
1057
1058         while (*s)
1059         {
1060             if (*s == ':')
1061                 *s = '/';
1062             else
1063                 *s = wxTolower(*s);        // Case INDEPENDENT
1064             s++;
1065         }
1066     }
1067     return wxString(sMacFileNameConversion) ;
1068 }
1069
1070 wxString wxUnix2MacFilename (const wxChar *str)
1071 {
1072     wxChar *s = sMacFileNameConversion ;
1073     wxStrcpy( s , str ) ;
1074     if (s)
1075     {
1076         if ( *s == '.' )
1077         {
1078             // relative path , since it goes on with slash which is translated to a :
1079             memmove( s , s+1 ,wxStrlen( s ) * sizeof(wxChar)) ;
1080         }
1081         else if ( *s == '/' )
1082         {
1083             // absolute path -> on mac just start with the drive name
1084             memmove( s , s+1 ,wxStrlen( s ) * sizeof(wxChar) ) ;
1085         }
1086         else
1087         {
1088             wxASSERT_MSG( 1 , wxT("unkown path beginning") ) ;
1089         }
1090         while (*s)
1091         {
1092             if (*s == '/' || *s == '\\')
1093             {
1094                 // convert any back-directory situations
1095                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
1096                 {
1097                     *s = ':';
1098                     memmove( s+1 , s+3 ,(wxStrlen( s+3 ) + 1)*sizeof(wxChar) ) ;
1099                 }
1100                 else
1101                     *s = ':';
1102             }
1103             s++ ;
1104         }
1105     }
1106     return wxString(sMacFileNameConversion) ;
1107 }
1108
1109 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
1110 {
1111     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
1112 }
1113
1114 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
1115 {
1116     wxString var = wxUnix2MacFilename( path ) ;
1117     wxMacFilename2FSSpec( var , spec ) ;
1118 }
1119 #endif // ! __DARWIN__
1120
1121 #endif // __WXMAC__
1122
1123 void
1124 wxDos2UnixFilename (wxChar *s)
1125 {
1126   if (s)
1127     while (*s)
1128       {
1129         if (*s == _T('\\'))
1130           *s = _T('/');
1131 #ifdef __WXMSW__
1132         else
1133           *s = wxTolower (*s);        // Case INDEPENDENT
1134 #endif
1135         s++;
1136       }
1137 }
1138
1139 void
1140 #if defined(__WXMSW__) || defined(__WXPM__)
1141 wxUnix2DosFilename (wxChar *s)
1142 #else
1143 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1144 #endif
1145 {
1146 // Yes, I really mean this to happen under DOS only! JACS
1147 #if defined(__WXMSW__) || defined(__WXPM__)
1148   if (s)
1149     while (*s)
1150       {
1151         if (*s == wxT('/'))
1152           *s = wxT('\\');
1153         s++;
1154       }
1155 #endif
1156 }
1157
1158 // Concatenate two files to form third
1159 bool
1160 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1161 {
1162   wxString outfile;
1163   if ( !wxGetTempFileName( wxT("cat"), outfile) )
1164       return FALSE;
1165
1166   FILE *fp1 = (FILE *) NULL;
1167   FILE *fp2 = (FILE *) NULL;
1168   FILE *fp3 = (FILE *) NULL;
1169   // Open the inputs and outputs
1170   if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
1171       (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
1172       (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
1173     {
1174       if (fp1)
1175         fclose (fp1);
1176       if (fp2)
1177         fclose (fp2);
1178       if (fp3)
1179         fclose (fp3);
1180       return FALSE;
1181     }
1182
1183   int ch;
1184   while ((ch = getc (fp1)) != EOF)
1185     (void) putc (ch, fp3);
1186   fclose (fp1);
1187
1188   while ((ch = getc (fp2)) != EOF)
1189     (void) putc (ch, fp3);
1190   fclose (fp2);
1191
1192   fclose (fp3);
1193   bool result = wxRenameFile(outfile, file3);
1194   return result;
1195 }
1196
1197 // Copy files
1198 bool
1199 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1200 {
1201 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1202     // CopyFile() copies file attributes and modification time too, so use it
1203     // instead of our code if available
1204     //
1205     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1206     if ( !::CopyFile(file1, file2, !overwrite) )
1207     {
1208         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1209                       file1.c_str(), file2.c_str());
1210
1211         return FALSE;
1212     }
1213 #elif defined(__WXPM__)
1214     if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
1215         return FALSE;
1216 #else // !Win32
1217
1218     wxStructStat fbuf;
1219     // get permissions of file1
1220     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1221     {
1222         // the file probably doesn't exist or we haven't the rights to read
1223         // from it anyhow
1224         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1225                       file1.c_str());
1226         return FALSE;
1227     }
1228
1229     // open file1 for reading
1230     wxFile fileIn(file1, wxFile::read);
1231     if ( !fileIn.IsOpened() )
1232         return FALSE;
1233
1234     // remove file2, if it exists. This is needed for creating
1235     // file2 with the correct permissions in the next step
1236     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1237     {
1238         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1239                       file2.c_str());
1240         return FALSE;
1241     }
1242
1243 #ifdef __UNIX__
1244     // reset the umask as we want to create the file with exactly the same
1245     // permissions as the original one
1246     mode_t oldUmask = umask( 0 );
1247 #endif // __UNIX__
1248
1249     // create file2 with the same permissions than file1 and open it for
1250     // writing
1251
1252     wxFile fileOut;
1253     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1254         return FALSE;
1255
1256 #ifdef __UNIX__
1257     /// restore the old umask
1258     umask(oldUmask);
1259 #endif // __UNIX__
1260
1261     // copy contents of file1 to file2
1262     char buf[4096];
1263     size_t count;
1264     for ( ;; )
1265     {
1266         count = fileIn.Read(buf, WXSIZEOF(buf));
1267         if ( fileIn.Error() )
1268             return FALSE;
1269
1270         // end of file?
1271         if ( !count )
1272             break;
1273
1274         if ( fileOut.Write(buf, count) < count )
1275             return FALSE;
1276     }
1277
1278     // we can expect fileIn to be closed successfully, but we should ensure
1279     // that fileOut was closed as some write errors (disk full) might not be
1280     // detected before doing this
1281     if ( !fileIn.Close() || !fileOut.Close() )
1282         return FALSE;
1283
1284 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1285     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1286     // however
1287     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1288     {
1289         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1290                       file2.c_str());
1291         return FALSE;
1292     }
1293 #endif // OS/2 || Mac
1294 #endif // __WXMSW__ && __WIN32__
1295
1296     return TRUE;
1297 }
1298
1299 bool
1300 wxRenameFile (const wxString& file1, const wxString& file2)
1301 {
1302 #ifndef __WXWINCE__
1303     // Normal system call
1304   if ( wxRename (file1, file2) == 0 )
1305     return TRUE;
1306 #endif
1307
1308   // Try to copy
1309   if (wxCopyFile(file1, file2)) {
1310     wxRemoveFile(file1);
1311     return TRUE;
1312   }
1313   // Give up
1314   return FALSE;
1315 }
1316
1317 bool wxRemoveFile(const wxString& file)
1318 {
1319 #if defined(__VISUALC__) \
1320  || defined(__BORLANDC__) \
1321  || defined(__WATCOMC__) \
1322  || defined(__GNUWIN32__)
1323   int res = wxRemove(file);
1324 #elif defined(__WXMAC__)
1325   int res = unlink(wxFNCONV(file));
1326 #else
1327   int res = unlink(OS_FILENAME(file));
1328 #endif
1329
1330   return res == 0;
1331 }
1332
1333 bool wxMkdir(const wxString& dir, int perm)
1334 {
1335 #if defined(__WXMAC__) && !defined(__UNIX__)
1336   return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1337 #else // !Mac
1338     const wxChar *dirname = dir.c_str();
1339
1340     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1341     // for the GNU compiler
1342 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1343   #ifndef MSVCRT
1344     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1345   #else
1346     if ( mkdir(wxFNCONV(dirname)) != 0 )
1347   #endif
1348 #elif defined(__WXPM__)
1349     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1350 #elif defined(__DOS__)
1351   #if defined(__WATCOMC__)
1352     (void)perm;
1353     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1354   #elif defined(__DJGPP__)
1355     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1356   #else
1357     #error "Unsupported DOS compiler!"
1358   #endif
1359 #else  // !MSW, !DOS and !OS/2 VAC++
1360     (void)perm;
1361 #ifdef __WXWINCE__
1362     if ( !CreateDirectory(dirname, NULL) )
1363 #else
1364     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1365 #endif
1366 #endif // !MSW/MSW
1367     {
1368         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1369
1370         return FALSE;
1371     }
1372
1373     return TRUE;
1374 #endif // Mac/!Mac
1375 }
1376
1377 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1378 {
1379 #ifdef __VMS__
1380     return FALSE; //to be changed since rmdir exists in VMS7.x
1381 #elif defined(__WXPM__)
1382     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1383 #else
1384
1385 #ifdef __WXWINCE__
1386     return (CreateDirectory(dir, NULL) != 0);
1387 #else
1388     return (wxRmDir(OS_FILENAME(dir)) == 0);
1389 #endif
1390
1391 #endif
1392 }
1393
1394 // does the path exists? (may have or not '/' or '\\' at the end)
1395 bool wxPathExists(const wxChar *pszPathName)
1396 {
1397     wxString strPath(pszPathName);
1398
1399 #ifdef __WINDOWS__
1400     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1401     // so remove all trailing backslashes from the path - but don't do this for
1402     // the pathes "d:\" (which are different from "d:") nor for just "\"
1403     while ( wxEndsWithPathSeparator(strPath) )
1404     {
1405         size_t len = strPath.length();
1406         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1407             break;
1408
1409         strPath.Truncate(len - 1);
1410     }
1411 #endif // __WINDOWS__
1412
1413 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1414     // stat() can't cope with network paths
1415     DWORD ret = ::GetFileAttributes(strPath);
1416
1417     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1418 #else // !__WIN32__
1419
1420     wxStructStat st;
1421 #ifndef __VISAGECPP__
1422     return wxStat(pszPathName, &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1423 #else
1424     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1425     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1426 #endif
1427
1428 #endif // __WIN32__/!__WIN32__
1429 }
1430
1431 // Get a temporary filename, opening and closing the file.
1432 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1433 {
1434     wxString filename = wxFileName::CreateTempFileName(prefix);
1435     if ( filename.empty() )
1436         return NULL;
1437
1438     if ( buf )
1439         wxStrcpy(buf, filename);
1440     else
1441         buf = MYcopystring(filename);
1442
1443     return buf;
1444 }
1445
1446 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1447 {
1448     buf = wxFileName::CreateTempFileName(prefix);
1449
1450     return !buf.empty();
1451 }
1452
1453 // Get first file name matching given wild card.
1454
1455 static wxDir *gs_dir = NULL;
1456 static wxString gs_dirPath;
1457
1458 wxString wxFindFirstFile(const wxChar *spec, int flags)
1459 {
1460     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1461     if ( gs_dirPath.IsEmpty() )
1462         gs_dirPath = wxT(".");
1463     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1464         gs_dirPath << wxFILE_SEP_PATH;
1465
1466     if (gs_dir)
1467         delete gs_dir;
1468     gs_dir = new wxDir(gs_dirPath);
1469
1470     if ( !gs_dir->IsOpened() )
1471     {
1472         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1473         return wxEmptyString;
1474     }
1475
1476     int dirFlags = 0;
1477     switch (flags)
1478     {
1479         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1480         case wxFILE: dirFlags = wxDIR_FILES; break;
1481         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1482     }
1483
1484     wxString result;
1485     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1486     if ( result.IsEmpty() )
1487     {
1488         wxDELETE(gs_dir);
1489         return result;
1490     }
1491
1492     return gs_dirPath + result;
1493 }
1494
1495 wxString wxFindNextFile()
1496 {
1497     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1498
1499     wxString result;
1500     gs_dir->GetNext(&result);
1501
1502     if ( result.IsEmpty() )
1503     {
1504         wxDELETE(gs_dir);
1505         return result;
1506     }
1507
1508     return gs_dirPath + result;
1509 }
1510
1511
1512 // Get current working directory.
1513 // If buf is NULL, allocates space using new, else
1514 // copies into buf.
1515 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1516 {
1517 #ifdef __WXWINCE__
1518     return NULL;
1519 #else
1520     if ( !buf )
1521     {
1522         buf = new wxChar[sz + 1];
1523     }
1524
1525     bool ok = FALSE;
1526
1527     // for the compilers which have Unicode version of _getcwd(), call it
1528     // directly, for the others call the ANSI version and do the translation
1529 #if !wxUSE_UNICODE
1530     #define cbuf buf
1531 #else // wxUSE_UNICODE
1532     bool needsANSI = TRUE;
1533
1534     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1535         // This is not legal code as the compiler
1536         // is allowed destroy the wxCharBuffer.
1537         // wxCharBuffer c_buffer(sz);
1538         // char *cbuf = (char*)(const char*)c_buffer;
1539         char cbuf[_MAXPATHLEN];
1540     #endif
1541
1542     #ifdef HAVE_WGETCWD
1543         #if wxUSE_UNICODE_MSLU
1544             if ( wxGetOsVersion() != wxWIN95 )
1545         #else
1546             char *cbuf = NULL; // never really used because needsANSI will always be FALSE
1547         #endif
1548             {
1549                 ok = _wgetcwd(buf, sz) != NULL;
1550                 needsANSI = FALSE;
1551             }
1552     #endif
1553
1554     if ( needsANSI )
1555 #endif // wxUSE_UNICODE
1556     {
1557     #if defined(_MSC_VER) || defined(__MINGW32__)
1558         ok = _getcwd(cbuf, sz) != NULL;
1559     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1560         FSSpec cwdSpec ;
1561         FCBPBRec pb;
1562         OSErr error;
1563         Str255  fileName ;
1564         pb.ioNamePtr = (StringPtr) &fileName;
1565         pb.ioVRefNum = 0;
1566         pb.ioRefNum = LMGetCurApRefNum();
1567         pb.ioFCBIndx = 0;
1568         error = PBGetFCBInfoSync(&pb);
1569         if ( error == noErr )
1570         {
1571             cwdSpec.vRefNum = pb.ioFCBVRefNum;
1572             cwdSpec.parID = pb.ioFCBParID;
1573             cwdSpec.name[0] = 0 ;
1574             wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1575                         wxStrcpy( buf , res ) ;
1576             ok = TRUE;
1577         }
1578         else
1579         {
1580             ok = FALSE;
1581         }
1582     #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1583         APIRET rc;
1584         rc = ::DosQueryCurrentDir( 0 // current drive
1585                                   ,cbuf
1586                                   ,(PULONG)&sz
1587                                  );
1588         ok = rc != 0;
1589     #else // !Win32/VC++ !Mac !OS2
1590         ok = getcwd(cbuf, sz) != NULL;
1591     #endif // platform
1592
1593     #if wxUSE_UNICODE && !defined(__WXMAC__)
1594         // finally convert the result to Unicode if needed
1595         wxConvFile.MB2WC(buf, cbuf, sz);
1596     #endif // wxUSE_UNICODE
1597     }
1598
1599     if ( !ok )
1600     {
1601         wxLogSysError(_("Failed to get the working directory"));
1602
1603         // VZ: the old code used to return "." on error which didn't make any
1604         //     sense at all to me - empty string is a better error indicator
1605         //     (NULL might be even better but I'm afraid this could lead to
1606         //     problems with the old code assuming the return is never NULL)
1607         buf[0] = _T('\0');
1608     }
1609     else // ok, but we might need to massage the path into the right format
1610     {
1611 #ifdef __DJGPP__
1612         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1613         //     with / deliminers. We don't like that.
1614         for (wxChar *ch = buf; *ch; ch++)
1615         {
1616             if (*ch == wxT('/'))
1617                 *ch = wxT('\\');
1618         }
1619 #endif // __DJGPP__
1620
1621 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1622 //      he needs Unix as opposed to Win32 pathnames
1623 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1624         // another example of DOS/Unix mix (Cygwin)
1625         wxString pathUnix = buf;
1626         cygwin_conv_to_full_win32_path(pathUnix, buf);
1627 #endif // __CYGWIN__
1628     }
1629
1630     return buf;
1631
1632 #if !wxUSE_UNICODE
1633     #undef cbuf
1634 #endif
1635
1636 #endif
1637     // __WXWINCE__
1638 }
1639
1640 wxString wxGetCwd()
1641 {
1642     wxChar *buffer = new wxChar[_MAXPATHLEN];
1643     wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1644     wxString str( buffer );
1645     delete [] buffer;
1646
1647     return str;
1648 }
1649
1650 bool wxSetWorkingDirectory(const wxString& d)
1651 {
1652 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1653     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1654 #elif defined(__WXPM__)
1655     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1656 #elif defined(__WINDOWS__)
1657
1658 #ifdef __WIN32__
1659 #ifdef __WXWINCE__
1660     // No equivalent in WinCE
1661     return FALSE;
1662 #else
1663     return (bool)(SetCurrentDirectory(d) != 0);
1664 #endif
1665 #else
1666     // Must change drive, too.
1667     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1668     if (isDriveSpec)
1669     {
1670         wxChar firstChar = d[0];
1671
1672         // To upper case
1673         if (firstChar > 90)
1674             firstChar = firstChar - 32;
1675
1676         // To a drive number
1677         unsigned int driveNo = firstChar - 64;
1678         if (driveNo > 0)
1679         {
1680             unsigned int noDrives;
1681             _dos_setdrive(driveNo, &noDrives);
1682         }
1683     }
1684     bool success = (chdir(WXSTRINGCAST d) == 0);
1685
1686     return success;
1687 #endif
1688
1689 #endif
1690 }
1691
1692 // Get the OS directory if appropriate (such as the Windows directory).
1693 // On non-Windows platform, probably just return the empty string.
1694 wxString wxGetOSDirectory()
1695 {
1696 #ifdef __WXWINCE__
1697     return wxString(wxT("\\Windows"));
1698 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1699     wxChar buf[256];
1700     GetWindowsDirectory(buf, 256);
1701     return wxString(buf);
1702 #elif defined(__WXMAC__)
1703     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1704 #else
1705     return wxEmptyString;
1706 #endif
1707 }
1708
1709 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1710 {
1711     size_t len = wxStrlen(pszFileName);
1712
1713     return len && wxIsPathSeparator(pszFileName[len - 1]);
1714 }
1715
1716 // find a file in a list of directories, returns FALSE if not found
1717 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1718 {
1719     // we assume that it's not empty
1720     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1721                  _T("empty file name in wxFindFileInPath"));
1722
1723     // skip path separator in the beginning of the file name if present
1724     if ( wxIsPathSeparator(*pszFile) )
1725         pszFile++;
1726
1727     // copy the path (strtok will modify it)
1728     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1729     wxStrcpy(szPath, pszPath);
1730
1731     wxString strFile;
1732     wxChar *pc, *save_ptr;
1733     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1734           pc != NULL;
1735           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1736     {
1737         // search for the file in this directory
1738         strFile = pc;
1739         if ( !wxEndsWithPathSeparator(pc) )
1740             strFile += wxFILE_SEP_PATH;
1741         strFile += pszFile;
1742
1743         if ( wxFileExists(strFile) ) {
1744             *pStr = strFile;
1745             break;
1746         }
1747     }
1748
1749     // suppress warning about unused variable save_ptr when wxStrtok() is a
1750     // macro which throws away its third argument
1751     save_ptr = pc;
1752
1753     delete [] szPath;
1754
1755     return pc != NULL;  // if TRUE => we breaked from the loop
1756 }
1757
1758 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1759                              wxString *pstrPath,
1760                              wxString *pstrName,
1761                              wxString *pstrExt)
1762 {
1763     // it can be empty, but it shouldn't be NULL
1764     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1765
1766     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1767 }
1768
1769 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1770 {
1771 #ifdef __WXWINCE__
1772     FILETIME creationTime, lastAccessTime, lastWriteTime;
1773     HANDLE fileHandle = ::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
1774         0, FILE_ATTRIBUTE_NORMAL, 0);
1775     if (fileHandle == INVALID_HANDLE_VALUE)
1776         return 0;
1777     else
1778     {
1779         if (GetFileTime(fileHandle, & creationTime, & lastAccessTime, & lastWriteTime))
1780         {
1781             CloseHandle(fileHandle);
1782
1783             wxDateTime dateTime;
1784             FILETIME ftLocal;
1785             if ( !::FileTimeToLocalFileTime(&lastWriteTime, &ftLocal) )
1786             {
1787                 wxLogLastError(_T("FileTimeToLocalFileTime"));
1788             }
1789
1790             SYSTEMTIME st;
1791             if ( !::FileTimeToSystemTime(&ftLocal, &st) )
1792             {
1793                 wxLogLastError(_T("FileTimeToSystemTime"));
1794             }
1795
1796             dateTime.Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
1797                 st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
1798             return dateTime.GetTicks();
1799         }
1800         else
1801             return 0;
1802     }
1803 #else
1804     wxStructStat buf;
1805     wxStat( filename, &buf);
1806
1807     return buf.st_mtime;
1808 #endif
1809 }
1810
1811
1812 //------------------------------------------------------------------------
1813 // wild character routines
1814 //------------------------------------------------------------------------
1815
1816 bool wxIsWild( const wxString& pattern )
1817 {
1818     wxString tmp = pattern;
1819     wxChar *pat = WXSTRINGCAST(tmp);
1820     while (*pat)
1821     {
1822         switch (*pat++)
1823         {
1824         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1825             return TRUE;
1826         case wxT('\\'):
1827             if (!*pat++)
1828                 return FALSE;
1829         }
1830     }
1831     return FALSE;
1832 }
1833
1834 /*
1835 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1836 *
1837 * The match procedure is public domain code (from ircII's reg.c)
1838 */
1839
1840 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1841 {
1842         if (text.empty())
1843         {
1844                 /* Match if both are empty. */
1845                 return pat.empty();
1846         }
1847
1848         const wxChar *m = pat.c_str(),
1849         *n = text.c_str(),
1850         *ma = NULL,
1851         *na = NULL,
1852         *mp = NULL,
1853         *np = NULL;
1854         int just = 0,
1855         pcount = 0,
1856         acount = 0,
1857         count = 0;
1858
1859         if (dot_special && (*n == wxT('.')))
1860         {
1861                 /* Never match so that hidden Unix files
1862                  * are never found. */
1863                 return FALSE;
1864         }
1865
1866         for (;;)
1867         {
1868                 if (*m == wxT('*'))
1869                 {
1870                         ma = ++m;
1871                         na = n;
1872                         just = 1;
1873                         mp = NULL;
1874                         acount = count;
1875                 }
1876                 else if (*m == wxT('?'))
1877                 {
1878                         m++;
1879                         if (!*n++)
1880                         return FALSE;
1881                 }
1882                 else
1883                 {
1884                         if (*m == wxT('\\'))
1885                         {
1886                                 m++;
1887                                 /* Quoting "nothing" is a bad thing */
1888                                 if (!*m)
1889                                 return FALSE;
1890                         }
1891                         if (!*m)
1892                         {
1893                                 /*
1894                                 * If we are out of both strings or we just
1895                                 * saw a wildcard, then we can say we have a
1896                                 * match
1897                                 */
1898                                 if (!*n)
1899                                 return TRUE;
1900                                 if (just)
1901                                 return TRUE;
1902                                 just = 0;
1903                                 goto not_matched;
1904                         }
1905                         /*
1906                         * We could check for *n == NULL at this point, but
1907                         * since it's more common to have a character there,
1908                         * check to see if they match first (m and n) and
1909                         * then if they don't match, THEN we can check for
1910                         * the NULL of n
1911                         */
1912                         just = 0;
1913                         if (*m == *n)
1914                         {
1915                                 m++;
1916                                 if (*n == wxT(' '))
1917                                 mp = NULL;
1918                                 count++;
1919                                 n++;
1920                         }
1921                         else
1922                         {
1923
1924                                 not_matched:
1925
1926                                 /*
1927                                 * If there are no more characters in the
1928                                 * string, but we still need to find another
1929                                 * character (*m != NULL), then it will be
1930                                 * impossible to match it
1931                                 */
1932                                 if (!*n)
1933                                 return FALSE;
1934                                 if (mp)
1935                                 {
1936                                         m = mp;
1937                                         if (*np == wxT(' '))
1938                                         {
1939                                                 mp = NULL;
1940                                                 goto check_percent;
1941                                         }
1942                                         n = ++np;
1943                                         count = pcount;
1944                                 }
1945                                 else
1946                                 check_percent:
1947
1948                                 if (ma)
1949                                 {
1950                                         m = ma;
1951                                         n = ++na;
1952                                         count = acount;
1953                                 }
1954                                 else
1955                                 return FALSE;
1956                         }
1957                 }
1958         }
1959 }
1960
1961
1962 #ifdef __VISUALC__
1963     #pragma warning(default:4706)   // assignment within conditional expression
1964 #endif // VC++