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 __OS2__
  84 // need to check for __OS2__ first since currently both
  85 // __OS2__ and __UNIX__ are defined.
  86     #include <process.h>
  87     #include "wx/os2/private.h"
  88 #ifdef __EMX__
  89     #include <unistd.h>
  90 #endif
  91 #elif defined(__UNIX__)
  92     #include <unistd.h>
  93     #include <dirent.h>
  94     #include <fcntl.h>
  95 #endif
  96
  97 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  98 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__)
  99     #include <direct.h>
 100     #include <dos.h>
 101     #include <io.h>
 102 #endif // __WINDOWS__
 103 #endif // native Win compiler
 104
 105 #if defined(__DOS__)
 106     #ifdef __WATCOMC__
 107         #include <direct.h>
 108         #include <dos.h>
 109         #include <io.h>
 110     #endif
 111     #ifdef __DJGPP__
 112         #include <unistd.h>
 113     #endif
 114 #endif
 115
 116 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
 117                     // this (3.1 I believe) and how to test for it.
 118                     // If this works for Borland 4.0 as well, then no worries.
 119     #include <dir.h>
 120 #endif
 121
 122 #ifdef __SALFORDC__
 123     #include <dir.h>
 124     #include <unix.h>
 125 #endif
 126
 127 #include "wx/log.h"
 128
 129 // No, Cygwin doesn't appear to have fnmatch.h after all.
 130 #if defined(HAVE_FNMATCH_H)
 131     #include "fnmatch.h"
 132 #endif
 133
 134 #ifdef __WINDOWS__
 135     #include "wx/msw/wrapwin.h"
 136     #include "wx/msw/mslu.h"
 137
 138     // for _getcwd
 139     #ifdef __MINGW32__
 140         #include <io.h>
 141     #endif
 142
 143     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
 144     //
 145     // note that it must be included after <windows.h>
 146     #ifdef __GNUWIN32__
 147         #ifdef __CYGWIN__
 148             #include <sys/cygwin.h>
 149         #endif
 150     #endif // __GNUWIN32__
 151 #endif // __WINDOWS__
 152
 153 // TODO: Borland probably has _wgetcwd as well?
 154 #ifdef _MSC_VER
 155     #define HAVE_WGETCWD
 156 #endif
 157
 158 // ----------------------------------------------------------------------------
 159 // constants
 160 // ----------------------------------------------------------------------------
 161
 162 #ifndef _MAXPATHLEN
 163     #define _MAXPATHLEN 1024
 164 #endif
 165
 166 #ifdef __WXMAC__
 167 #  ifdef __DARWIN__
 168 #    include "MoreFilesX.h"
 169 #  else
 170 #    include "MoreFiles.h"
 171 #    include "MoreFilesExtras.h"
 172 #    include "FullPath.h"
 173 #    include "FSpCompat.h"
 174 #  endif
 175 #endif
 176
 177 // ----------------------------------------------------------------------------
 178 // private globals
 179 // ----------------------------------------------------------------------------
 180
 181 // MT-FIXME: get rid of this horror and all code using it
 182 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 183
 184 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 185 //
 186 // VisualAge C++ V4.0 cannot have any external linkage const decs
 187 // in headers included by more than one primary source
 188 //
 189 const off_t wxInvalidOffset = (off_t)-1;
 190 #endif
 191
 192 // ----------------------------------------------------------------------------
 193 // macros
 194 // ----------------------------------------------------------------------------
 195
 196 // we need to translate Mac filenames before passing them to OS functions
 197 #define OS_FILENAME(s) (s.fn_str())
 198
 199 // ============================================================================
 200 // implementation
 201 // ============================================================================
 202
 203 #ifdef wxNEED_WX_UNISTD_H
 204
 205 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 206 {
 207     return stat( wxConvFile.cWX2MB( file_name ), buf );
 208 }
 209
 210 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 211 {
 212     return access( wxConvFile.cWX2MB( pathname ), mode );
 213 }
 214
 215 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 216 {
 217     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 218 }
 219
 220 #endif
 221    // wxNEED_WX_UNISTD_H
 222
 223 // ----------------------------------------------------------------------------
 224 // wxPathList
 225 // ----------------------------------------------------------------------------
 226
 227 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 228
 229 static inline wxChar* MYcopystring(const wxString& s)
 230 {
 231     wxChar* copy = new wxChar[s.length() + 1];
 232     return wxStrcpy(copy, s.c_str());
 233 }
 234
 235 static inline wxChar* MYcopystring(const wxChar* s)
 236 {
 237     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 238     return wxStrcpy(copy, s);
 239 }
 240
 241 void wxPathList::Add (const wxString& path)
 242 {
 243     wxStringList::Add (WXSTRINGCAST path);
 244 }
 245
 246 // Add paths e.g. from the PATH environment variable
 247 void wxPathList::AddEnvList (const wxString& envVariable)
 248 {
 249     // No environment variables on WinCE
 250 #ifndef __WXWINCE__
 251     static const wxChar PATH_TOKS[] =
 252 #if defined(__WINDOWS__) || defined(__OS2__)
 253         /*
 254         The space has been removed from the tokenizers, otherwise a
 255         path such as "C:\Program Files" would be split into 2 paths:
 256         "C:\Program" and "Files"
 257         */
 258 //        wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 259         wxT(";"); // Don't seperate with colon in DOS (used for drive)
 260 #else
 261         wxT(" :;");
 262 #endif
 263
 264     wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 265     if (val && *val)
 266     {
 267         wxChar *s = MYcopystring (val);
 268         wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 269
 270         if (token)
 271         {
 272             Add(token);
 273             while (token)
 274             {
 275                 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
 276                     != NULL )
 277                 {
 278                     Add(token);
 279                 }
 280             }
 281         }
 282
 283         // suppress warning about unused variable save_ptr when wxStrtok() is a
 284         // macro which throws away its third argument
 285         save_ptr = token;
 286
 287         delete [] s;
 288     }
 289 #endif
 290 }
 291
 292 // Given a full filename (with path), ensure that that file can
 293 // be accessed again USING FILENAME ONLY by adding the path
 294 // to the list if not already there.
 295 void wxPathList::EnsureFileAccessible (const wxString& path)
 296 {
 297     wxString path_only(wxPathOnly(path));
 298     if ( !path_only.IsEmpty() )
 299     {
 300         if ( !Member(path_only) )
 301             Add(path_only);
 302     }
 303 }
 304
 305 bool wxPathList::Member (const wxString& path)
 306 {
 307   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 308   {
 309       wxString path2( node->GetData() );
 310       if (
 311 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined (__WXMAC__)
 312       // Case INDEPENDENT
 313           path.CompareTo (path2, wxString::ignoreCase) == 0
 314 #else
 315       // Case sensitive File System
 316           path.CompareTo (path2) == 0
 317 #endif
 318         )
 319         return TRUE;
 320   }
 321   return FALSE;
 322 }
 323
 324 wxString wxPathList::FindValidPath (const wxString& file)
 325 {
 326   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 327     return wxString(wxFileFunctionsBuffer);
 328
 329   wxChar buf[_MAXPATHLEN];
 330   wxStrcpy(buf, wxFileFunctionsBuffer);
 331
 332   wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 333
 334   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 335     {
 336       const wxChar *path = node->GetData();
 337       wxStrcpy (wxFileFunctionsBuffer, path);
 338       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 339       if (ch != wxT('\\') && ch != wxT('/'))
 340         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 341       wxStrcat (wxFileFunctionsBuffer, filename);
 342 #ifdef __WINDOWS__
 343       wxUnix2DosFilename (wxFileFunctionsBuffer);
 344 #endif
 345       if (wxFileExists (wxFileFunctionsBuffer))
 346       {
 347         return wxString(wxFileFunctionsBuffer);        // Found!
 348       }
 349     }                                // for()
 350
 351   return wxEmptyString;                    // Not found
 352 }
 353
 354 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 355 {
 356     wxString f = FindValidPath(file);
 357     if ( wxIsAbsolutePath(f) )
 358         return f;
 359
 360     wxString buf;
 361     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 362
 363     if ( !wxEndsWithPathSeparator(buf) )
 364     {
 365         buf += wxFILE_SEP_PATH;
 366     }
 367     buf += f;
 368
 369     return buf;
 370 }
 371
 372 bool
 373 wxFileExists (const wxString& filename)
 374 {
 375     // we must use GetFileAttributes() instead of the ANSI C functions because
 376     // it can cope with network (UNC) paths unlike them
 377 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 378     DWORD ret = ::GetFileAttributes(filename);
 379
 380     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 381 #else // !__WIN32__
 382     wxStructStat st;
 383     return wxStat(filename, &st) == 0 && (st.st_mode & S_IFREG);
 384 #endif // __WIN32__/!__WIN32__
 385 }
 386
 387 bool
 388 wxIsAbsolutePath (const wxString& filename)
 389 {
 390     if (filename != wxT(""))
 391     {
 392 #if defined(__WXMAC__) && !defined(__DARWIN__)
 393         // Classic or Carbon CodeWarrior like
 394         // Carbon with Apple DevTools is Unix like
 395
 396         // This seems wrong to me, but there is no fix. since
 397         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 398         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 399         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 400             return TRUE ;
 401 #else
 402         // Unix like or Windows
 403         if (filename[0] == wxT('/'))
 404             return TRUE;
 405 #endif
 406 #ifdef __VMS__
 407         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 408             return TRUE;
 409 #endif
 410 #if defined(__WINDOWS__) || defined(__OS2__)
 411         // MSDOS like
 412         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 413             return TRUE;
 414 #endif
 415     }
 416     return FALSE ;
 417 }
 418
 419 /*
 420  * Strip off any extension (dot something) from end of file,
 421  * IF one exists. Inserts zero into buffer.
 422  *
 423  */
 424
 425 void wxStripExtension(wxChar *buffer)
 426 {
 427   int len = wxStrlen(buffer);
 428   int i = len-1;
 429   while (i > 0)
 430   {
 431     if (buffer[i] == wxT('.'))
 432     {
 433       buffer[i] = 0;
 434       break;
 435     }
 436     i --;
 437   }
 438 }
 439
 440 void wxStripExtension(wxString& buffer)
 441 {
 442   size_t len = buffer.Length();
 443   size_t i = len-1;
 444   while (i > 0)
 445   {
 446     if (buffer.GetChar(i) == wxT('.'))
 447     {
 448       buffer = buffer.Left(i);
 449       break;
 450     }
 451     i --;
 452   }
 453 }
 454
 455 // Destructive removal of /./ and /../ stuff
 456 wxChar *wxRealPath (wxChar *path)
 457 {
 458 #ifdef __WXMSW__
 459   static const wxChar SEP = wxT('\\');
 460   wxUnix2DosFilename(path);
 461 #else
 462   static const wxChar SEP = wxT('/');
 463 #endif
 464   if (path[0] && path[1]) {
 465     /* MATTHEW: special case "/./x" */
 466     wxChar *p;
 467     if (path[2] == SEP && path[1] == wxT('.'))
 468       p = &path[0];
 469     else
 470       p = &path[2];
 471     for (; *p; p++)
 472       {
 473         if (*p == SEP)
 474           {
 475             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 476               {
 477                 wxChar *q;
 478                 for (q = p - 1; q >= path && *q != SEP; q--)
 479                 {
 480                     // Empty
 481                 }
 482
 483                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 484                     && (q - 1 <= path || q[-1] != SEP))
 485                   {
 486                     wxStrcpy (q, p + 3);
 487                     if (path[0] == wxT('\0'))
 488                       {
 489                         path[0] = SEP;
 490                         path[1] = wxT('\0');
 491                       }
 492 #if defined(__WXMSW__) || defined(__OS2__)
 493                     /* Check that path[2] is NULL! */
 494                     else if (path[1] == wxT(':') && !path[2])
 495                       {
 496                         path[2] = SEP;
 497                         path[3] = wxT('\0');
 498                       }
 499 #endif
 500                     p = q - 1;
 501                   }
 502               }
 503             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 504               wxStrcpy (p, p + 2);
 505           }
 506       }
 507   }
 508   return path;
 509 }
 510
 511 // Must be destroyed
 512 wxChar *wxCopyAbsolutePath(const wxString& filename)
 513 {
 514   if (filename == wxT(""))
 515     return (wxChar *) NULL;
 516
 517   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 518     wxChar  buf[_MAXPATHLEN];
 519     buf[0] = wxT('\0');
 520     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 521     wxChar ch = buf[wxStrlen(buf) - 1];
 522 #ifdef __WXMSW__
 523     if (ch != wxT('\\') && ch != wxT('/'))
 524         wxStrcat(buf, wxT("\\"));
 525 #else
 526     if (ch != wxT('/'))
 527         wxStrcat(buf, wxT("/"));
 528 #endif
 529     wxStrcat(buf, wxFileFunctionsBuffer);
 530     return MYcopystring( wxRealPath(buf) );
 531   }
 532   return MYcopystring( wxFileFunctionsBuffer );
 533 }
 534
 535 /*-
 536  Handles:
 537    ~/ => home dir
 538    ~user/ => user's home dir
 539    If the environment variable a = "foo" and b = "bar" then:
 540    Unix:
 541         $a        =>        foo
 542         $a$b        =>        foobar
 543         $a.c        =>        foo.c
 544         xxx$a        =>        xxxfoo
 545         ${a}!        =>        foo!
 546         $(b)!        =>        bar!
 547         \$a        =>        \$a
 548    MSDOS:
 549         $a        ==>        $a
 550         $(a)        ==>        foo
 551         $(a)$b        ==>        foo$b
 552         $(a)$(b)==>        foobar
 553         test.$$        ==>        test.$$
 554  */
 555
 556 /* input name in name, pathname output to buf. */
 557
 558 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 559 {
 560     register wxChar *d, *s, *nm;
 561     wxChar          lnm[_MAXPATHLEN];
 562     int             q;
 563
 564     // Some compilers don't like this line.
 565 //    const wxChar    trimchars[] = wxT("\n \t");
 566
 567     wxChar      trimchars[4];
 568     trimchars[0] = wxT('\n');
 569     trimchars[1] = wxT(' ');
 570     trimchars[2] = wxT('\t');
 571     trimchars[3] = 0;
 572
 573 #ifdef __WXMSW__
 574      const wxChar     SEP = wxT('\\');
 575 #else
 576      const wxChar     SEP = wxT('/');
 577 #endif
 578     buf[0] = wxT('\0');
 579     if (name == NULL || *name == wxT('\0'))
 580         return buf;
 581     nm = MYcopystring(name); // Make a scratch copy
 582     wxChar *nm_tmp = nm;
 583
 584     /* Skip leading whitespace and cr */
 585     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 586         nm++;
 587     /* And strip off trailing whitespace and cr */
 588     s = nm + (q = wxStrlen(nm)) - 1;
 589     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 590         *s = wxT('\0');
 591
 592     s = nm;
 593     d = lnm;
 594 #ifdef __WXMSW__
 595     q = FALSE;
 596 #else
 597     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 598 #endif
 599
 600     /* Expand inline environment variables */
 601 #ifdef __VISAGECPP__
 602     while (*d)
 603     {
 604       *d++ = *s;
 605       if(*s == wxT('\\'))
 606       {
 607         *(d - 1) = *++s;
 608         if (*d)
 609         {
 610           s++;
 611           continue;
 612         }
 613         else
 614            break;
 615       }
 616       else
 617 #else
 618     while ((*d++ = *s) != 0) {
 619 #  ifndef __WXMSW__
 620         if (*s == wxT('\\')) {
 621             if ((*(d - 1) = *++s)) {
 622                 s++;
 623                 continue;
 624             } else
 625                 break;
 626         } else
 627 #  endif
 628 #endif
 629             // No env variables on WinCE
 630 #ifndef __WXWINCE__
 631 #ifdef __WXMSW__
 632         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 633 #else
 634         if (*s++ == wxT('$'))
 635 #endif
 636         {
 637             register wxChar  *start = d;
 638             register int     braces = (*s == wxT('{') || *s == wxT('('));
 639             register wxChar  *value;
 640             while ((*d++ = *s) != 0)
 641                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 642                     break;
 643                 else
 644                     s++;
 645             *--d = 0;
 646             value = wxGetenv(braces ? start + 1 : start);
 647             if (value) {
 648                 for ((d = start - 1); (*d++ = *value++) != 0;)
 649                 {
 650                     // Empty
 651                 }
 652
 653                 d--;
 654                 if (braces && *s)
 655                     s++;
 656             }
 657         }
 658 #endif
 659         // __WXWINCE__
 660     }
 661
 662     /* Expand ~ and ~user */
 663     nm = lnm;
 664     if (nm[0] == wxT('~') && !q)
 665     {
 666         /* prefix ~ */
 667         if (nm[1] == SEP || nm[1] == 0)
 668         {        /* ~/filename */
 669         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 670             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 671                 if (*++nm)
 672                     nm++;
 673             }
 674         } else
 675         {                /* ~user/filename */
 676             register wxChar  *nnm;
 677             register wxChar  *home;
 678             for (s = nm; *s && *s != SEP; s++)
 679             {
 680                 // Empty
 681             }
 682             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 683             was_sep = (*s == SEP);
 684             nnm = *s ? s + 1 : s;
 685             *s = 0;
 686         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 687             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 688                if (was_sep) /* replace only if it was there: */
 689                    *s = SEP;
 690                 s = NULL;
 691             } else {
 692                 nm = nnm;
 693                 s = home;
 694             }
 695         }
 696     }
 697
 698     d = buf;
 699     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 700         /* Copy home dir */
 701         while (wxT('\0') != (*d++ = *s++))
 702           /* loop */;
 703         // Handle root home
 704         if (d - 1 > buf && *(d - 2) != SEP)
 705           *(d - 1) = SEP;
 706     }
 707     s = nm;
 708     while ((*d++ = *s++) != 0)
 709     {
 710         // Empty
 711     }
 712     delete[] nm_tmp; // clean up alloc
 713     /* Now clean up the buffer */
 714     return wxRealPath(buf);
 715 }
 716
 717 /* Contract Paths to be build upon an environment variable
 718    component:
 719
 720    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 721
 722    The call wxExpandPath can convert these back!
 723  */
 724 wxChar *
 725 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 726 {
 727   static wxChar dest[_MAXPATHLEN];
 728
 729   if (filename == wxT(""))
 730     return (wxChar *) NULL;
 731
 732   wxStrcpy (dest, WXSTRINGCAST filename);
 733 #ifdef __WXMSW__
 734   wxUnix2DosFilename(dest);
 735 #endif
 736
 737   // Handle environment
 738   const wxChar *val;
 739 #ifndef __WXWINCE__
 740   wxChar *tcp;
 741   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 742      (tcp = wxStrstr (dest, val)) != NULL)
 743     {
 744         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 745         *tcp++ = wxT('$');
 746         *tcp++ = wxT('{');
 747         wxStrcpy (tcp, WXSTRINGCAST envname);
 748         wxStrcat (tcp, wxT("}"));
 749         wxStrcat (tcp, wxFileFunctionsBuffer);
 750     }
 751 #endif
 752
 753   // Handle User's home (ignore root homes!)
 754   size_t len;
 755   if ((val = wxGetUserHome (user)) != NULL &&
 756       (len = wxStrlen(val)) > 2 &&
 757       wxStrncmp(dest, val, len) == 0)
 758     {
 759       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 760       if (user != wxT(""))
 761              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 762       wxStrcat(wxFileFunctionsBuffer, dest + len);
 763       wxStrcpy (dest, wxFileFunctionsBuffer);
 764     }
 765
 766   return dest;
 767 }
 768
 769 // Return just the filename, not the path (basename)
 770 wxChar *wxFileNameFromPath (wxChar *path)
 771 {
 772     wxString p = path;
 773     wxString n = wxFileNameFromPath(p);
 774
 775     return path + p.length() - n.length();
 776 }
 777
 778 wxString wxFileNameFromPath (const wxString& path)
 779 {
 780     wxString name, ext;
 781     wxFileName::SplitPath(path, NULL, &name, &ext);
 782
 783     wxString fullname = name;
 784     if ( !ext.empty() )
 785     {
 786         fullname << wxFILE_SEP_EXT << ext;
 787     }
 788
 789     return fullname;
 790 }
 791
 792 // Return just the directory, or NULL if no directory
 793 wxChar *
 794 wxPathOnly (wxChar *path)
 795 {
 796     if (path && *path)
 797     {
 798         static wxChar buf[_MAXPATHLEN];
 799
 800         // Local copy
 801         wxStrcpy (buf, path);
 802
 803         int l = wxStrlen(path);
 804         int i = l - 1;
 805
 806         // Search backward for a backward or forward slash
 807         while (i > -1)
 808         {
 809 #if defined(__WXMAC__) && !defined(__DARWIN__)
 810             // Classic or Carbon CodeWarrior like
 811             // Carbon with Apple DevTools is Unix like
 812             if (path[i] == wxT(':') )
 813             {
 814                 buf[i] = 0;
 815                 return buf;
 816             }
 817 #else
 818             // Unix like or Windows
 819             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 820             {
 821                 buf[i] = 0;
 822                 return buf;
 823             }
 824 #endif
 825 #ifdef __VMS__
 826             if (path[i] == wxT(']'))
 827             {
 828                 buf[i+1] = 0;
 829                 return buf;
 830             }
 831 #endif
 832             i --;
 833         }
 834
 835 #if defined(__WXMSW__) || defined(__OS2__)
 836         // Try Drive specifier
 837         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 838         {
 839             // A:junk --> A:. (since A:.\junk Not A:\junk)
 840             buf[2] = wxT('.');
 841             buf[3] = wxT('\0');
 842             return buf;
 843         }
 844 #endif
 845     }
 846     return (wxChar *) NULL;
 847 }
 848
 849 // Return just the directory, or NULL if no directory
 850 wxString wxPathOnly (const wxString& path)
 851 {
 852     if (path != wxT(""))
 853     {
 854         wxChar buf[_MAXPATHLEN];
 855
 856         // Local copy
 857         wxStrcpy (buf, WXSTRINGCAST path);
 858
 859         int l = path.Length();
 860         int i = l - 1;
 861
 862         // Search backward for a backward or forward slash
 863         while (i > -1)
 864         {
 865 #if defined(__WXMAC__) && !defined(__DARWIN__)
 866             // Classic or Carbon CodeWarrior like
 867             // Carbon with Apple DevTools is Unix like
 868             if (path[i] == wxT(':') )
 869             {
 870                 buf[i] = 0;
 871                 return wxString(buf);
 872             }
 873 #else
 874             // Unix like or Windows
 875             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 876             {
 877                 buf[i] = 0;
 878                 return wxString(buf);
 879             }
 880 #endif
 881 #ifdef __VMS__
 882             if (path[i] == wxT(']'))
 883             {
 884                 buf[i+1] = 0;
 885                 return wxString(buf);
 886             }
 887 #endif
 888             i --;
 889         }
 890
 891 #if defined(__WXMSW__) || defined(__OS2__)
 892         // Try Drive specifier
 893         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 894         {
 895             // A:junk --> A:. (since A:.\junk Not A:\junk)
 896             buf[2] = wxT('.');
 897             buf[3] = wxT('\0');
 898             return wxString(buf);
 899         }
 900 #endif
 901     }
 902     return wxString(wxT(""));
 903 }
 904
 905 // Utility for converting delimiters in DOS filenames to UNIX style
 906 // and back again - or we get nasty problems with delimiters.
 907 // Also, convert to lower case, since case is significant in UNIX.
 908
 909 #if defined(__WXMAC__)
 910 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 911 {
 912 #ifdef __DARWIN__
 913     int         i;
 914     int         j;
 915     OSErr       theErr;
 916     OSStatus    theStatus = noErr;
 917     Boolean     isDirectory = FALSE;
 918     Str255    theParentPath = "\p";
 919     FSSpec      theParentSpec;
 920     FSRef       theParentRef;
 921     char        theFileName[FILENAME_MAX];
 922     char        thePath[FILENAME_MAX];
 923
 924     strcpy(thePath, "");
 925
 926     // GD: Separate file name from path and make a FSRef to the parent
 927     //     directory. This is necessary since FSRefs cannot reference files
 928     //     that have not yet been created.
 929     //     Based on example code from Apple Technical Note TN2022
 930     //       http://developer.apple.com/technotes/tn/tn2022.html
 931
 932     // check whether we are converting a directory
 933     isDirectory = ((spec->name)[spec->name[0]] == ':');
 934     // count length of file name
 935     for (i = spec->name[0] - (isDirectory ? 1 : 0); ((spec->name[i] != ':') && (i > 0)); i--);
 936     // copy file name
 937     //   prepend path separator since it will later be appended to the path
 938     theFileName[0] = wxFILE_SEP_PATH;
 939     for (j = i + 1; j <= spec->name[0] - (isDirectory ? 1 : 0); j++) {
 940         theFileName[j - i] = spec->name[j];
 941     }
 942     theFileName[j - i] = '\0';
 943     // copy path if any
 944     for (j = 1; j <= i; j++) {
 945         theParentPath[++theParentPath[0]] = spec->name[j];
 946     }
 947     theErr = FSMakeFSSpec(spec->vRefNum, spec->parID, theParentPath, &theParentSpec);
 948     if (theErr == noErr) {
 949         // convert the FSSpec to an FSRef
 950         theErr = FSpMakeFSRef(&theParentSpec, &theParentRef);
 951     }
 952     if (theErr == noErr) {
 953         // get the POSIX path associated with the FSRef
 954         theStatus = FSRefMakePath(&theParentRef,
 955                                   (UInt8 *)thePath, sizeof(thePath));
 956     }
 957     if (theStatus == noErr) {
 958         // append file name to path
 959         //   includes previously prepended path separator
 960         strcat(thePath, theFileName);
 961     }
 962
 963     // create path string for return value
 964     wxString result( thePath , wxConvLocal) ;
 965 #else
 966     Handle    myPath ;
 967     short     length ;
 968
 969     // get length of path and allocate handle
 970     FSpGetFullPath( spec , &length , &myPath ) ;
 971     ::SetHandleSize( myPath , length + 1 ) ;
 972     ::HLock( myPath ) ;
 973     (*myPath)[length] = 0 ;
 974     if ((length > 0) && ((*myPath)[length-1] == ':'))
 975         (*myPath)[length-1] = 0 ;
 976
 977     // create path string for return value
 978     wxString result( *myPath , wxConvLocal) ;
 979
 980     // free allocated handle
 981     ::HUnlock( myPath ) ;
 982     ::DisposeHandle( myPath ) ;
 983 #endif
 984
 985     return result ;
 986 }
 987 #ifndef __DARWIN__
 988 // Mac file names are POSIX (Unix style) under Darwin
 989 // therefore the conversion functions below are not needed
 990
 991 static wxChar sMacFileNameConversion[ 1000 ] ;
 992 static char scMacFileNameConversion[ 1000 ] ;
 993
 994 #endif
 995 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 996 {
 997     OSStatus err = noErr ;
 998 #ifdef __DARWIN__
 999     FSRef theRef;
1000
1001     // get the FSRef associated with the POSIX path
1002     err = FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
1003     // convert the FSRef to an FSSpec
1004     err = FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
1005 #else
1006     if ( strchr( path , ':' ) == NULL )
1007     {
1008         // try whether it is a volume / or a mounted volume
1009         strncpy( scMacFileNameConversion , path , 1000 ) ;
1010         scMacFileNameConversion[998] = 0 ;
1011         strcat( scMacFileNameConversion , ":" ) ;
1012         err = FSpLocationFromFullPath( strlen(scMacFileNameConversion) , scMacFileNameConversion , spec ) ;
1013     }
1014     else
1015     {
1016         err = FSpLocationFromFullPath( strlen(path) , path , spec ) ;
1017     }
1018 #endif
1019 }
1020
1021 #if wxUSE_UNICODE
1022 WXDLLEXPORT void wxMacFilename2FSSpec( const wxChar *path , FSSpec *spec )
1023 {
1024     return wxMacFilename2FSSpec( wxConvFile.cWC2MB(path) , spec ) ;
1025 }
1026 #endif
1027
1028 #ifndef __DARWIN__
1029
1030 wxString wxMac2UnixFilename (const wxChar *str)
1031 {
1032     wxChar *s = sMacFileNameConversion ;
1033     wxStrcpy( s , str ) ;
1034     if (s)
1035     {
1036         memmove( s+1 , s ,wxStrlen( s ) + 1 * sizeof(wxChar)) ;
1037         if ( *s == ':' )
1038             *s = '.' ;
1039         else
1040             *s = '/' ;
1041
1042         while (*s)
1043         {
1044             if (*s == ':')
1045                 *s = '/';
1046             else
1047                 *s = wxTolower(*s);        // Case INDEPENDENT
1048             s++;
1049         }
1050     }
1051     return wxString(sMacFileNameConversion) ;
1052 }
1053
1054 wxString wxUnix2MacFilename (const wxChar *str)
1055 {
1056     wxChar *s = sMacFileNameConversion ;
1057     wxStrcpy( s , str ) ;
1058     if (s)
1059     {
1060         if ( *s == '.' )
1061         {
1062             // relative path , since it goes on with slash which is translated to a :
1063             memmove( s , s+1 ,wxStrlen( s ) * sizeof(wxChar)) ;
1064         }
1065         else if ( *s == '/' )
1066         {
1067             // absolute path -> on mac just start with the drive name
1068             memmove( s , s+1 ,wxStrlen( s ) * sizeof(wxChar) ) ;
1069         }
1070         else
1071         {
1072             wxASSERT_MSG( 1 , wxT("unkown path beginning") ) ;
1073         }
1074         while (*s)
1075         {
1076             if (*s == '/' || *s == '\\')
1077             {
1078                 // convert any back-directory situations
1079                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
1080                 {
1081                     *s = ':';
1082                     memmove( s+1 , s+3 ,(wxStrlen( s+3 ) + 1)*sizeof(wxChar) ) ;
1083                 }
1084                 else
1085                     *s = ':';
1086             }
1087             s++ ;
1088         }
1089     }
1090     return wxString(sMacFileNameConversion) ;
1091 }
1092
1093 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
1094 {
1095     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
1096 }
1097
1098 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
1099 {
1100     wxString var = wxUnix2MacFilename( path ) ;
1101     wxMacFilename2FSSpec( var , spec ) ;
1102 }
1103 #endif // ! __DARWIN__
1104
1105 #endif // __WXMAC__
1106
1107 void
1108 wxDos2UnixFilename (wxChar *s)
1109 {
1110   if (s)
1111     while (*s)
1112       {
1113         if (*s == _T('\\'))
1114           *s = _T('/');
1115 #ifdef __WXMSW__
1116         else
1117           *s = wxTolower (*s);        // Case INDEPENDENT
1118 #endif
1119         s++;
1120       }
1121 }
1122
1123 void
1124 #if defined(__WXMSW__) || defined(__OS2__)
1125 wxUnix2DosFilename (wxChar *s)
1126 #else
1127 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1128 #endif
1129 {
1130 // Yes, I really mean this to happen under DOS only! JACS
1131 #if defined(__WXMSW__) || defined(__OS2__)
1132   if (s)
1133     while (*s)
1134       {
1135         if (*s == wxT('/'))
1136           *s = wxT('\\');
1137         s++;
1138       }
1139 #endif
1140 }
1141
1142 // Concatenate two files to form third
1143 bool
1144 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1145 {
1146   wxString outfile;
1147   if ( !wxGetTempFileName( wxT("cat"), outfile) )
1148       return FALSE;
1149
1150   FILE *fp1 wxDUMMY_INITIALIZE(NULL);
1151   FILE *fp2 = NULL;
1152   FILE *fp3 = NULL;
1153   // Open the inputs and outputs
1154   if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
1155       (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
1156       (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
1157     {
1158       if (fp1)
1159         fclose (fp1);
1160       if (fp2)
1161         fclose (fp2);
1162       if (fp3)
1163         fclose (fp3);
1164       return FALSE;
1165     }
1166
1167   int ch;
1168   while ((ch = getc (fp1)) != EOF)
1169     (void) putc (ch, fp3);
1170   fclose (fp1);
1171
1172   while ((ch = getc (fp2)) != EOF)
1173     (void) putc (ch, fp3);
1174   fclose (fp2);
1175
1176   fclose (fp3);
1177   bool result = wxRenameFile(outfile, file3);
1178   return result;
1179 }
1180
1181 // Copy files
1182 bool
1183 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1184 {
1185 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1186     // CopyFile() copies file attributes and modification time too, so use it
1187     // instead of our code if available
1188     //
1189     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1190     if ( !::CopyFile(file1, file2, !overwrite) )
1191     {
1192         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1193                       file1.c_str(), file2.c_str());
1194
1195         return FALSE;
1196     }
1197 #elif defined(__OS2__)
1198     if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
1199         return FALSE;
1200 #else // !Win32
1201
1202     wxStructStat fbuf;
1203     // get permissions of file1
1204     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1205     {
1206         // the file probably doesn't exist or we haven't the rights to read
1207         // from it anyhow
1208         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1209                       file1.c_str());
1210         return FALSE;
1211     }
1212
1213     // open file1 for reading
1214     wxFile fileIn(file1, wxFile::read);
1215     if ( !fileIn.IsOpened() )
1216         return FALSE;
1217
1218     // remove file2, if it exists. This is needed for creating
1219     // file2 with the correct permissions in the next step
1220     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1221     {
1222         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1223                       file2.c_str());
1224         return FALSE;
1225     }
1226
1227 #ifdef __UNIX__
1228     // reset the umask as we want to create the file with exactly the same
1229     // permissions as the original one
1230     mode_t oldUmask = umask( 0 );
1231 #endif // __UNIX__
1232
1233     // create file2 with the same permissions than file1 and open it for
1234     // writing
1235
1236     wxFile fileOut;
1237     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1238         return FALSE;
1239
1240 #ifdef __UNIX__
1241     /// restore the old umask
1242     umask(oldUmask);
1243 #endif // __UNIX__
1244
1245     // copy contents of file1 to file2
1246     char buf[4096];
1247     size_t count;
1248     for ( ;; )
1249     {
1250         count = fileIn.Read(buf, WXSIZEOF(buf));
1251         if ( fileIn.Error() )
1252             return FALSE;
1253
1254         // end of file?
1255         if ( !count )
1256             break;
1257
1258         if ( fileOut.Write(buf, count) < count )
1259             return FALSE;
1260     }
1261
1262     // we can expect fileIn to be closed successfully, but we should ensure
1263     // that fileOut was closed as some write errors (disk full) might not be
1264     // detected before doing this
1265     if ( !fileIn.Close() || !fileOut.Close() )
1266         return FALSE;
1267
1268 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1269     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1270     // however
1271     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1272     {
1273         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1274                       file2.c_str());
1275         return FALSE;
1276     }
1277 #endif // OS/2 || Mac
1278 #endif // __WXMSW__ && __WIN32__
1279
1280     return TRUE;
1281 }
1282
1283 bool
1284 wxRenameFile (const wxString& file1, const wxString& file2)
1285 {
1286 #ifndef __WXWINCE__
1287     // Normal system call
1288   if ( wxRename (file1, file2) == 0 )
1289     return TRUE;
1290 #endif
1291
1292   // Try to copy
1293   if (wxCopyFile(file1, file2)) {
1294     wxRemoveFile(file1);
1295     return TRUE;
1296   }
1297   // Give up
1298   return FALSE;
1299 }
1300
1301 bool wxRemoveFile(const wxString& file)
1302 {
1303 #if defined(__VISUALC__) \
1304  || defined(__BORLANDC__) \
1305  || defined(__WATCOMC__) \
1306  || defined(__DMC__) \
1307  || defined(__GNUWIN32__)
1308   int res = wxRemove(file);
1309 #elif defined(__WXMAC__)
1310   int res = unlink(wxFNCONV(file));
1311 #else
1312   int res = unlink(OS_FILENAME(file));
1313 #endif
1314
1315   return res == 0;
1316 }
1317
1318 bool wxMkdir(const wxString& dir, int perm)
1319 {
1320 #if defined(__WXMAC__) && !defined(__UNIX__)
1321   return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1322 #else // !Mac
1323     const wxChar *dirname = dir.c_str();
1324
1325     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1326     // for the GNU compiler
1327 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1328   #ifndef MSVCRT
1329     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1330   #else
1331     if ( mkdir(wxFNCONV(dirname)) != 0 )
1332   #endif
1333 #elif defined(__OS2__)
1334     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1335 #elif defined(__DOS__)
1336   #if defined(__WATCOMC__)
1337     (void)perm;
1338     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1339   #elif defined(__DJGPP__)
1340     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1341   #else
1342     #error "Unsupported DOS compiler!"
1343   #endif
1344 #else  // !MSW, !DOS and !OS/2 VAC++
1345     (void)perm;
1346 #ifdef __WXWINCE__
1347     if ( !CreateDirectory(dirname, NULL) )
1348 #else
1349     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1350 #endif
1351 #endif // !MSW/MSW
1352     {
1353         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1354
1355         return FALSE;
1356     }
1357
1358     return TRUE;
1359 #endif // Mac/!Mac
1360 }
1361
1362 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1363 {
1364 #ifdef __VMS__
1365     return FALSE; //to be changed since rmdir exists in VMS7.x
1366 #elif defined(__OS2__)
1367     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1368 #else
1369
1370 #ifdef __WXWINCE__
1371     return (CreateDirectory(dir, NULL) != 0);
1372 #else
1373     return (wxRmDir(OS_FILENAME(dir)) == 0);
1374 #endif
1375
1376 #endif
1377 }
1378
1379 // does the path exists? (may have or not '/' or '\\' at the end)
1380 bool wxPathExists(const wxChar *pszPathName)
1381 {
1382     wxString strPath(pszPathName);
1383
1384 #if defined(__WINDOWS__) || defined(__OS2__)
1385     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1386     // so remove all trailing backslashes from the path - but don't do this for
1387     // the pathes "d:\" (which are different from "d:") nor for just "\"
1388     while ( wxEndsWithPathSeparator(strPath) )
1389     {
1390         size_t len = strPath.length();
1391         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1392             break;
1393
1394         strPath.Truncate(len - 1);
1395     }
1396 #endif // __WINDOWS__
1397
1398 #ifdef __OS2__
1399     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1400     if (strPath.length() == 2 && strPath[1u] == _T(':'))
1401         strPath << _T('.');
1402 #endif
1403
1404 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1405     // stat() can't cope with network paths
1406     DWORD ret = ::GetFileAttributes(strPath);
1407
1408     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1409 #else // !__WIN32__
1410
1411     wxStructStat st;
1412 #ifndef __VISAGECPP__
1413     return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1414 #else
1415     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1416     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1417 #endif
1418
1419 #endif // __WIN32__/!__WIN32__
1420 }
1421
1422 // Get a temporary filename, opening and closing the file.
1423 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1424 {
1425     wxString filename = wxFileName::CreateTempFileName(prefix);
1426     if ( filename.empty() )
1427         return NULL;
1428
1429     if ( buf )
1430         wxStrcpy(buf, filename);
1431     else
1432         buf = MYcopystring(filename);
1433
1434     return buf;
1435 }
1436
1437 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1438 {
1439     buf = wxFileName::CreateTempFileName(prefix);
1440
1441     return !buf.empty();
1442 }
1443
1444 // Get first file name matching given wild card.
1445
1446 static wxDir *gs_dir = NULL;
1447 static wxString gs_dirPath;
1448
1449 wxString wxFindFirstFile(const wxChar *spec, int flags)
1450 {
1451     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1452     if ( gs_dirPath.IsEmpty() )
1453         gs_dirPath = wxT(".");
1454     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1455         gs_dirPath << wxFILE_SEP_PATH;
1456
1457     if (gs_dir)
1458         delete gs_dir;
1459     gs_dir = new wxDir(gs_dirPath);
1460
1461     if ( !gs_dir->IsOpened() )
1462     {
1463         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1464         return wxEmptyString;
1465     }
1466
1467     int dirFlags;
1468     switch (flags)
1469     {
1470         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1471         case wxFILE: dirFlags = wxDIR_FILES; break;
1472         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1473     }
1474
1475     wxString result;
1476     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1477     if ( result.IsEmpty() )
1478     {
1479         wxDELETE(gs_dir);
1480         return result;
1481     }
1482
1483     return gs_dirPath + result;
1484 }
1485
1486 wxString wxFindNextFile()
1487 {
1488     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1489
1490     wxString result;
1491     gs_dir->GetNext(&result);
1492
1493     if ( result.IsEmpty() )
1494     {
1495         wxDELETE(gs_dir);
1496         return result;
1497     }
1498
1499     return gs_dirPath + result;
1500 }
1501
1502
1503 // Get current working directory.
1504 // If buf is NULL, allocates space using new, else
1505 // copies into buf.
1506 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1507 {
1508 #ifdef __WXWINCE__
1509     return NULL;
1510 #else
1511     if ( !buf )
1512     {
1513         buf = new wxChar[sz + 1];
1514     }
1515
1516     bool ok wxDUMMY_INITIALIZE(FALSE);
1517
1518     // for the compilers which have Unicode version of _getcwd(), call it
1519     // directly, for the others call the ANSI version and do the translation
1520 #if !wxUSE_UNICODE
1521     #define cbuf buf
1522 #else // wxUSE_UNICODE
1523     bool needsANSI = TRUE;
1524
1525     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1526         // This is not legal code as the compiler
1527         // is allowed destroy the wxCharBuffer.
1528         // wxCharBuffer c_buffer(sz);
1529         // char *cbuf = (char*)(const char*)c_buffer;
1530         char cbuf[_MAXPATHLEN];
1531     #endif
1532
1533     #ifdef HAVE_WGETCWD
1534         #if wxUSE_UNICODE_MSLU
1535             if ( wxGetOsVersion() != wxWIN95 )
1536         #else
1537             char *cbuf = NULL; // never really used because needsANSI will always be FALSE
1538         #endif
1539             {
1540                 ok = _wgetcwd(buf, sz) != NULL;
1541                 needsANSI = FALSE;
1542             }
1543     #endif
1544
1545     if ( needsANSI )
1546 #endif // wxUSE_UNICODE
1547     {
1548     #if defined(_MSC_VER) || defined(__MINGW32__)
1549         ok = _getcwd(cbuf, sz) != NULL;
1550     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1551         FSSpec cwdSpec ;
1552         FCBPBRec pb;
1553         OSErr error;
1554         Str255  fileName ;
1555         pb.ioNamePtr = (StringPtr) &fileName;
1556         pb.ioVRefNum = 0;
1557         pb.ioRefNum = LMGetCurApRefNum();
1558         pb.ioFCBIndx = 0;
1559         error = PBGetFCBInfoSync(&pb);
1560         if ( error == noErr )
1561         {
1562             cwdSpec.vRefNum = pb.ioFCBVRefNum;
1563             cwdSpec.parID = pb.ioFCBParID;
1564             cwdSpec.name[0] = 0 ;
1565             wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1566                         wxStrcpy( buf , res ) ;
1567             ok = TRUE;
1568         }
1569         else
1570         {
1571             ok = FALSE;
1572         }
1573     #elif defined(__OS2__)
1574         APIRET rc;
1575         ULONG ulDriveNum = 0;
1576         ULONG ulDriveMap = 0;
1577         rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1578         ok = rc == 0;
1579         if (ok)
1580         {
1581             sz -= 3;
1582             rc = ::DosQueryCurrentDir( 0 // current drive
1583                                       ,cbuf + 3
1584                                       ,(PULONG)&sz
1585                                      );
1586             cbuf[0] = 'A' + (ulDriveNum - 1);
1587             cbuf[1] = ':';
1588             cbuf[2] = '\\';
1589             ok = rc == 0;
1590         }
1591     #else // !Win32/VC++ !Mac !OS2
1592         ok = getcwd(cbuf, sz) != NULL;
1593     #endif // platform
1594
1595     #if wxUSE_UNICODE && !defined(__WXMAC__)
1596         // finally convert the result to Unicode if needed
1597         wxConvFile.MB2WC(buf, cbuf, sz);
1598     #endif // wxUSE_UNICODE
1599     }
1600
1601     if ( !ok )
1602     {
1603         wxLogSysError(_("Failed to get the working directory"));
1604
1605         // VZ: the old code used to return "." on error which didn't make any
1606         //     sense at all to me - empty string is a better error indicator
1607         //     (NULL might be even better but I'm afraid this could lead to
1608         //     problems with the old code assuming the return is never NULL)
1609         buf[0] = _T('\0');
1610     }
1611     else // ok, but we might need to massage the path into the right format
1612     {
1613 #ifdef __DJGPP__
1614         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1615         //     with / deliminers. We don't like that.
1616         for (wxChar *ch = buf; *ch; ch++)
1617         {
1618             if (*ch == wxT('/'))
1619                 *ch = wxT('\\');
1620         }
1621 #endif // __DJGPP__
1622
1623 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1624 //      he needs Unix as opposed to Win32 pathnames
1625 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1626         // another example of DOS/Unix mix (Cygwin)
1627         wxString pathUnix = buf;
1628         cygwin_conv_to_full_win32_path(pathUnix, buf);
1629 #endif // __CYGWIN__
1630     }
1631
1632     return buf;
1633
1634 #if !wxUSE_UNICODE
1635     #undef cbuf
1636 #endif
1637
1638 #endif
1639     // __WXWINCE__
1640 }
1641
1642 wxString wxGetCwd()
1643 {
1644     wxChar *buffer = new wxChar[_MAXPATHLEN];
1645     wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1646     wxString str( buffer );
1647     delete [] buffer;
1648
1649     return str;
1650 }
1651
1652 bool wxSetWorkingDirectory(const wxString& d)
1653 {
1654 #if defined(__OS2__)
1655     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1656 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1657     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1658 #elif defined(__WINDOWS__)
1659
1660 #ifdef __WIN32__
1661 #ifdef __WXWINCE__
1662     // No equivalent in WinCE
1663     return FALSE;
1664 #else
1665     return (bool)(SetCurrentDirectory(d) != 0);
1666 #endif
1667 #else
1668     // Must change drive, too.
1669     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1670     if (isDriveSpec)
1671     {
1672         wxChar firstChar = d[0];
1673
1674         // To upper case
1675         if (firstChar > 90)
1676             firstChar = firstChar - 32;
1677
1678         // To a drive number
1679         unsigned int driveNo = firstChar - 64;
1680         if (driveNo > 0)
1681         {
1682             unsigned int noDrives;
1683             _dos_setdrive(driveNo, &noDrives);
1684         }
1685     }
1686     bool success = (chdir(WXSTRINGCAST d) == 0);
1687
1688     return success;
1689 #endif
1690
1691 #endif
1692 }
1693
1694 // Get the OS directory if appropriate (such as the Windows directory).
1695 // On non-Windows platform, probably just return the empty string.
1696 wxString wxGetOSDirectory()
1697 {
1698 #ifdef __WXWINCE__
1699     return wxString(wxT("\\Windows"));
1700 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1701     wxChar buf[256];
1702     GetWindowsDirectory(buf, 256);
1703     return wxString(buf);
1704 #elif defined(__WXMAC__)
1705     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1706 #else
1707     return wxEmptyString;
1708 #endif
1709 }
1710
1711 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1712 {
1713     size_t len = wxStrlen(pszFileName);
1714
1715     return len && wxIsPathSeparator(pszFileName[len - 1]);
1716 }
1717
1718 // find a file in a list of directories, returns FALSE if not found
1719 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1720 {
1721     // we assume that it's not empty
1722     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1723                  _T("empty file name in wxFindFileInPath"));
1724
1725     // skip path separator in the beginning of the file name if present
1726     if ( wxIsPathSeparator(*pszFile) )
1727         pszFile++;
1728
1729     // copy the path (strtok will modify it)
1730     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1731     wxStrcpy(szPath, pszPath);
1732
1733     wxString strFile;
1734     wxChar *pc, *save_ptr;
1735     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1736           pc != NULL;
1737           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1738     {
1739         // search for the file in this directory
1740         strFile = pc;
1741         if ( !wxEndsWithPathSeparator(pc) )
1742             strFile += wxFILE_SEP_PATH;
1743         strFile += pszFile;
1744
1745         if ( wxFileExists(strFile) ) {
1746             *pStr = strFile;
1747             break;
1748         }
1749     }
1750
1751     // suppress warning about unused variable save_ptr when wxStrtok() is a
1752     // macro which throws away its third argument
1753     save_ptr = pc;
1754
1755     delete [] szPath;
1756
1757     return pc != NULL;  // if TRUE => we breaked from the loop
1758 }
1759
1760 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1761                              wxString *pstrPath,
1762                              wxString *pstrName,
1763                              wxString *pstrExt)
1764 {
1765     // it can be empty, but it shouldn't be NULL
1766     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1767
1768     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1769 }
1770
1771 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1772 {
1773 #ifdef __WXWINCE__
1774     FILETIME creationTime, lastAccessTime, lastWriteTime;
1775     HANDLE fileHandle = ::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
1776         0, FILE_ATTRIBUTE_NORMAL, 0);
1777     if (fileHandle == INVALID_HANDLE_VALUE)
1778         return 0;
1779     else
1780     {
1781         if (GetFileTime(fileHandle, & creationTime, & lastAccessTime, & lastWriteTime))
1782         {
1783             CloseHandle(fileHandle);
1784
1785             wxDateTime dateTime;
1786             FILETIME ftLocal;
1787             if ( !::FileTimeToLocalFileTime(&lastWriteTime, &ftLocal) )
1788             {
1789                 wxLogLastError(_T("FileTimeToLocalFileTime"));
1790             }
1791
1792             SYSTEMTIME st;
1793             if ( !::FileTimeToSystemTime(&ftLocal, &st) )
1794             {
1795                 wxLogLastError(_T("FileTimeToSystemTime"));
1796             }
1797
1798             dateTime.Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
1799                 st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
1800             return dateTime.GetTicks();
1801         }
1802         else
1803             return 0;
1804     }
1805 #else
1806     wxStructStat buf;
1807     wxStat( filename, &buf);
1808
1809     return buf.st_mtime;
1810 #endif
1811 }
1812
1813
1814 //------------------------------------------------------------------------
1815 // wild character routines
1816 //------------------------------------------------------------------------
1817
1818 bool wxIsWild( const wxString& pattern )
1819 {
1820     wxString tmp = pattern;
1821     wxChar *pat = WXSTRINGCAST(tmp);
1822     while (*pat)
1823     {
1824         switch (*pat++)
1825         {
1826         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1827             return TRUE;
1828         case wxT('\\'):
1829             if (!*pat++)
1830                 return FALSE;
1831         }
1832     }
1833     return FALSE;
1834 }
1835
1836 /*
1837 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1838 *
1839 * The match procedure is public domain code (from ircII's reg.c)
1840 */
1841
1842 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1843 {
1844         if (text.empty())
1845         {
1846                 /* Match if both are empty. */
1847                 return pat.empty();
1848         }
1849
1850         const wxChar *m = pat.c_str(),
1851         *n = text.c_str(),
1852         *ma = NULL,
1853         *na = NULL,
1854         *mp = NULL,
1855         *np = NULL;
1856         int just = 0,
1857         pcount = 0,
1858         acount = 0,
1859         count = 0;
1860
1861         if (dot_special && (*n == wxT('.')))
1862         {
1863                 /* Never match so that hidden Unix files
1864                  * are never found. */
1865                 return FALSE;
1866         }
1867
1868         for (;;)
1869         {
1870                 if (*m == wxT('*'))
1871                 {
1872                         ma = ++m;
1873                         na = n;
1874                         just = 1;
1875                         mp = NULL;
1876                         acount = count;
1877                 }
1878                 else if (*m == wxT('?'))
1879                 {
1880                         m++;
1881                         if (!*n++)
1882                         return FALSE;
1883                 }
1884                 else
1885                 {
1886                         if (*m == wxT('\\'))
1887                         {
1888                                 m++;
1889                                 /* Quoting "nothing" is a bad thing */
1890                                 if (!*m)
1891                                 return FALSE;
1892                         }
1893                         if (!*m)
1894                         {
1895                                 /*
1896                                 * If we are out of both strings or we just
1897                                 * saw a wildcard, then we can say we have a
1898                                 * match
1899                                 */
1900                                 if (!*n)
1901                                 return TRUE;
1902                                 if (just)
1903                                 return TRUE;
1904                                 just = 0;
1905                                 goto not_matched;
1906                         }
1907                         /*
1908                         * We could check for *n == NULL at this point, but
1909                         * since it's more common to have a character there,
1910                         * check to see if they match first (m and n) and
1911                         * then if they don't match, THEN we can check for
1912                         * the NULL of n
1913                         */
1914                         just = 0;
1915                         if (*m == *n)
1916                         {
1917                                 m++;
1918                                 if (*n == wxT(' '))
1919                                 mp = NULL;
1920                                 count++;
1921                                 n++;
1922                         }
1923                         else
1924                         {
1925
1926                                 not_matched:
1927
1928                                 /*
1929                                 * If there are no more characters in the
1930                                 * string, but we still need to find another
1931                                 * character (*m != NULL), then it will be
1932                                 * impossible to match it
1933                                 */
1934                                 if (!*n)
1935                                 return FALSE;
1936                                 if (mp)
1937                                 {
1938                                         m = mp;
1939                                         if (*np == wxT(' '))
1940                                         {
1941                                                 mp = NULL;
1942                                                 goto check_percent;
1943                                         }
1944                                         n = ++np;
1945                                         count = pcount;
1946                                 }
1947                                 else
1948                                 check_percent:
1949
1950                                 if (ma)
1951                                 {
1952                                         m = ma;
1953                                         n = ++na;
1954                                         count = acount;
1955                                 }
1956                                 else
1957                                 return FALSE;
1958                         }
1959                 }
1960         }
1961 }
1962
1963
1964 #ifdef __VISUALC__
1965     #pragma warning(default:4706)   // assignment within conditional expression
1966 #endif // VC++