src/common/filefn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/intl.h"
  29     #include "wx/log.h"
  30     #include "wx/utils.h"
  31 #endif
  32
  33 #include "wx/file.h" // This does include filefn.h
  34 #include "wx/filename.h"
  35 #include "wx/dir.h"
  36
  37 #include "wx/tokenzr.h"
  38
  39 // there are just too many of those...
  40 #ifdef __VISUALC__
  41     #pragma warning(disable:4706)   // assignment within conditional expression
  42 #endif // VC++
  43
  44 #include <ctype.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <string.h>
  48 #if !wxONLY_WATCOM_EARLIER_THAN(1,4)
  49     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  50         #include <errno.h>
  51     #endif
  52 #endif
  53
  54 #if defined(__WXMAC__)
  55     #include  "wx/mac/private.h"  // includes mac headers
  56 #endif
  57
  58 #ifdef __WINDOWS__
  59     #include "wx/msw/private.h"
  60     #include "wx/msw/mslu.h"
  61
  62     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
  63     //
  64     // note that it must be included after <windows.h>
  65     #ifdef __GNUWIN32__
  66         #ifdef __CYGWIN__
  67             #include <sys/cygwin.h>
  68         #endif
  69     #endif // __GNUWIN32__
  70
  71     // io.h is needed for _get_osfhandle()
  72     // Already included by filefn.h for many Windows compilers
  73     #if defined __MWERKS__ || defined __CYGWIN__
  74         #include <io.h>
  75     #endif
  76 #endif // __WINDOWS__
  77
  78 #if defined(__VMS__)
  79     #include <fab.h>
  80 #endif
  81
  82 // TODO: Borland probably has _wgetcwd as well?
  83 #ifdef _MSC_VER
  84     #define HAVE_WGETCWD
  85 #endif
  86
  87 // ----------------------------------------------------------------------------
  88 // constants
  89 // ----------------------------------------------------------------------------
  90
  91 #ifndef _MAXPATHLEN
  92     #define _MAXPATHLEN 1024
  93 #endif
  94
  95 #ifdef __WXMAC__
  96 #    include "MoreFilesX.h"
  97 #endif
  98
  99 // ----------------------------------------------------------------------------
 100 // private globals
 101 // ----------------------------------------------------------------------------
 102
 103 // MT-FIXME: get rid of this horror and all code using it
 104 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 105
 106 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 107 //
 108 // VisualAge C++ V4.0 cannot have any external linkage const decs
 109 // in headers included by more than one primary source
 110 //
 111 const int wxInvalidOffset = -1;
 112 #endif
 113
 114 // ----------------------------------------------------------------------------
 115 // macros
 116 // ----------------------------------------------------------------------------
 117
 118 // we need to translate Mac filenames before passing them to OS functions
 119 #define OS_FILENAME(s) (s.fn_str())
 120
 121 // ============================================================================
 122 // implementation
 123 // ============================================================================
 124
 125 #ifdef wxNEED_WX_UNISTD_H
 126
 127 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 128 {
 129     return stat( wxConvFile.cWX2MB( file_name ), buf );
 130 }
 131
 132 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 133 {
 134     return access( wxConvFile.cWX2MB( pathname ), mode );
 135 }
 136
 137 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 138 {
 139     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 140 }
 141
 142 #endif
 143    // wxNEED_WX_UNISTD_H
 144
 145 // ----------------------------------------------------------------------------
 146 // wxPathList
 147 // ----------------------------------------------------------------------------
 148
 149 void wxPathList::Add(const wxString& path)
 150 {
 151     // add a path separator to force wxFileName to interpret it always as a directory
 152     // (i.e. if we are called with '/home/user' we want to consider it a folder and
 153     // not, as wxFileName would consider, a filename).
 154     wxFileName fn(path + wxFileName::GetPathSeparator());
 155
 156     // add only normalized relative/absolute paths
 157     fn.Normalize(wxPATH_NORM_DOTS|wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS);
 158
 159     wxString toadd = fn.GetPath();
 160     if (Index(toadd) == wxNOT_FOUND)
 161         wxArrayString::Add(toadd);      // do not add duplicates
 162 }
 163
 164 void wxPathList::Add(const wxArrayString &arr)
 165 {
 166     for (size_t j=0; j < arr.GetCount(); j++)
 167         Add(arr[j]);
 168 }
 169
 170 // Add paths e.g. from the PATH environment variable
 171 void wxPathList::AddEnvList (const wxString& WXUNUSED_IN_WINCE(envVariable))
 172 {
 173     // No environment variables on WinCE
 174 #ifndef __WXWINCE__
 175
 176     // The space has been removed from the tokenizers, otherwise a
 177     // path such as "C:\Program Files" would be split into 2 paths:
 178     // "C:\Program" and "Files"; this is true for both Windows and Unix.
 179
 180     static const wxChar PATH_TOKS[] =
 181 #if defined(__WINDOWS__) || defined(__OS2__)
 182         wxT(";"); // Don't separate with colon in DOS (used for drive)
 183 #else
 184         wxT(":;");
 185 #endif
 186
 187     wxString val;
 188     if ( wxGetEnv(envVariable, &val) )
 189     {
 190         // split into an array of string the value of the env var
 191         wxArrayString arr = wxStringTokenize(val, PATH_TOKS);
 192         WX_APPEND_ARRAY(*this, arr);
 193     }
 194 #endif // !__WXWINCE__
 195 }
 196
 197 // Given a full filename (with path), ensure that that file can
 198 // be accessed again USING FILENAME ONLY by adding the path
 199 // to the list if not already there.
 200 void wxPathList::EnsureFileAccessible (const wxString& path)
 201 {
 202     wxString path_only(wxPathOnly(path));
 203     if ( !path_only.empty() )
 204     {
 205         if ( Index(path_only) == wxNOT_FOUND )
 206             Add(path_only);
 207     }
 208 }
 209
 210 // deprecated !
 211 bool wxPathList::Member (const wxString& path) const
 212 {
 213     return Index(path) != wxNOT_FOUND;
 214 }
 215
 216 wxString wxPathList::FindValidPath (const wxString& file) const
 217 {
 218     // normalize the given string as it could be a path + a filename
 219     // and not only a filename
 220     wxFileName fn(file);
 221     wxString strend;
 222
 223     // NB: normalize without making absolute !
 224     fn.Normalize(wxPATH_NORM_DOTS|wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS);
 225
 226     wxASSERT_MSG(!fn.IsDir(), wxT("Cannot search for directories; only for files"));
 227     if (fn.IsAbsolute())
 228         strend = fn.GetFullName();      // search for the file name and ignore the path part
 229     else
 230         strend = fn.GetFullPath();
 231
 232     for (size_t i=0; i<GetCount(); i++)
 233     {
 234         wxString strstart = Item(i);
 235         if (!strstart.IsEmpty() && strstart.Last() != wxFileName::GetPathSeparator())
 236             strstart += wxFileName::GetPathSeparator();
 237
 238         if (wxFileExists(strstart + strend))
 239             return strstart + strend;        // Found!
 240     }
 241
 242     return wxEmptyString;                    // Not found
 243 }
 244
 245 wxString wxPathList::FindAbsoluteValidPath (const wxString& file) const
 246 {
 247     wxString f = FindValidPath(file);
 248     if ( f.empty() || wxIsAbsolutePath(f) )
 249         return f;
 250
 251     wxString buf = ::wxGetCwd();
 252
 253     if ( !wxEndsWithPathSeparator(buf) )
 254     {
 255         buf += wxFILE_SEP_PATH;
 256     }
 257     buf += f;
 258
 259     return buf;
 260 }
 261
 262 // ----------------------------------------------------------------------------
 263 // miscellaneous global functions (TOFIX!)
 264 // ----------------------------------------------------------------------------
 265
 266 static inline wxChar* MYcopystring(const wxString& s)
 267 {
 268     wxChar* copy = new wxChar[s.length() + 1];
 269     return wxStrcpy(copy, s.c_str());
 270 }
 271
 272 static inline wxChar* MYcopystring(const wxChar* s)
 273 {
 274     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 275     return wxStrcpy(copy, s);
 276 }
 277
 278
 279 bool
 280 wxFileExists (const wxString& filename)
 281 {
 282 #if defined(__WXPALMOS__)
 283     return false;
 284 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
 285     // we must use GetFileAttributes() instead of the ANSI C functions because
 286     // it can cope with network (UNC) paths unlike them
 287     DWORD ret = ::GetFileAttributes(filename);
 288
 289     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 290 #else // !__WIN32__
 291     #ifndef S_ISREG
 292         #define S_ISREG(mode) ((mode) & S_IFREG)
 293     #endif
 294     wxStructStat st;
 295 #ifndef wxNEED_WX_UNISTD_H
 296     return (wxStat( filename.fn_str() , &st) == 0 && S_ISREG(st.st_mode))
 297 #ifdef __OS2__
 298       || (errno == EACCES) // if access is denied something with that name
 299                             // exists and is opened in exclusive mode.
 300 #endif
 301       ;
 302 #else
 303     return wxStat( filename , &st) == 0 && S_ISREG(st.st_mode);
 304 #endif
 305 #endif // __WIN32__/!__WIN32__
 306 }
 307
 308 bool
 309 wxIsAbsolutePath (const wxString& filename)
 310 {
 311     if (!filename.empty())
 312     {
 313 #if defined(__WXMAC__) && !defined(__DARWIN__)
 314         // Classic or Carbon CodeWarrior like
 315         // Carbon with Apple DevTools is Unix like
 316
 317         // This seems wrong to me, but there is no fix. since
 318         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 319         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 320         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 321             return true ;
 322 #else
 323         // Unix like or Windows
 324         if (filename[0] == wxT('/'))
 325             return true;
 326 #endif
 327 #ifdef __VMS__
 328         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 329             return true;
 330 #endif
 331 #if defined(__WINDOWS__) || defined(__OS2__)
 332         // MSDOS like
 333         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 334             return true;
 335 #endif
 336     }
 337     return false ;
 338 }
 339
 340 /*
 341  * Strip off any extension (dot something) from end of file,
 342  * IF one exists. Inserts zero into buffer.
 343  *
 344  */
 345
 346 void wxStripExtension(wxChar *buffer)
 347 {
 348     int len = wxStrlen(buffer);
 349     int i = len-1;
 350     while (i > 0)
 351     {
 352         if (buffer[i] == wxT('.'))
 353         {
 354             buffer[i] = 0;
 355             break;
 356         }
 357         i --;
 358     }
 359 }
 360
 361 void wxStripExtension(wxString& buffer)
 362 {
 363     //RN:  Be careful about the handling the case where
 364     //buffer.length() == 0
 365     for(size_t i = buffer.length() - 1; i != wxString::npos; --i)
 366     {
 367         if (buffer.GetChar(i) == wxT('.'))
 368         {
 369           buffer = buffer.Left(i);
 370           break;
 371         }
 372     }
 373 }
 374
 375 // Destructive removal of /./ and /../ stuff
 376 wxChar *wxRealPath (wxChar *path)
 377 {
 378 #ifdef __WXMSW__
 379   static const wxChar SEP = wxT('\\');
 380   wxUnix2DosFilename(path);
 381 #else
 382   static const wxChar SEP = wxT('/');
 383 #endif
 384   if (path[0] && path[1]) {
 385     /* MATTHEW: special case "/./x" */
 386     wxChar *p;
 387     if (path[2] == SEP && path[1] == wxT('.'))
 388       p = &path[0];
 389     else
 390       p = &path[2];
 391     for (; *p; p++)
 392       {
 393         if (*p == SEP)
 394           {
 395             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 396               {
 397                 wxChar *q;
 398                 for (q = p - 1; q >= path && *q != SEP; q--)
 399                 {
 400                     // Empty
 401                 }
 402
 403                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 404                     && (q - 1 <= path || q[-1] != SEP))
 405                   {
 406                     wxStrcpy (q, p + 3);
 407                     if (path[0] == wxT('\0'))
 408                       {
 409                         path[0] = SEP;
 410                         path[1] = wxT('\0');
 411                       }
 412 #if defined(__WXMSW__) || defined(__OS2__)
 413                     /* Check that path[2] is NULL! */
 414                     else if (path[1] == wxT(':') && !path[2])
 415                       {
 416                         path[2] = SEP;
 417                         path[3] = wxT('\0');
 418                       }
 419 #endif
 420                     p = q - 1;
 421                   }
 422               }
 423             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 424               wxStrcpy (p, p + 2);
 425           }
 426       }
 427   }
 428   return path;
 429 }
 430
 431 wxString wxRealPath(const wxString& path)
 432 {
 433     wxChar *buf1=MYcopystring(path);
 434     wxChar *buf2=wxRealPath(buf1);
 435     wxString buf(buf2);
 436     delete [] buf1;
 437     return buf;
 438 }
 439
 440
 441 // Must be destroyed
 442 wxChar *wxCopyAbsolutePath(const wxString& filename)
 443 {
 444     if (filename.empty())
 445         return (wxChar *) NULL;
 446
 447     if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename)))
 448     {
 449         wxString buf = ::wxGetCwd();
 450         wxChar ch = buf.Last();
 451 #ifdef __WXMSW__
 452         if (ch != wxT('\\') && ch != wxT('/'))
 453             buf << wxT("\\");
 454 #else
 455         if (ch != wxT('/'))
 456             buf << wxT("/");
 457 #endif
 458         buf << wxFileFunctionsBuffer;
 459         buf = wxRealPath( buf );
 460         return MYcopystring( buf );
 461     }
 462     return MYcopystring( wxFileFunctionsBuffer );
 463 }
 464
 465 /*-
 466  Handles:
 467    ~/ => home dir
 468    ~user/ => user's home dir
 469    If the environment variable a = "foo" and b = "bar" then:
 470    Unix:
 471         $a        =>        foo
 472         $a$b        =>        foobar
 473         $a.c        =>        foo.c
 474         xxx$a        =>        xxxfoo
 475         ${a}!        =>        foo!
 476         $(b)!        =>        bar!
 477         \$a        =>        \$a
 478    MSDOS:
 479         $a        ==>        $a
 480         $(a)        ==>        foo
 481         $(a)$b        ==>        foo$b
 482         $(a)$(b)==>        foobar
 483         test.$$        ==>        test.$$
 484  */
 485
 486 /* input name in name, pathname output to buf. */
 487
 488 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 489 {
 490     register wxChar *d, *s, *nm;
 491     wxChar          lnm[_MAXPATHLEN];
 492     int             q;
 493
 494     // Some compilers don't like this line.
 495 //    const wxChar    trimchars[] = wxT("\n \t");
 496
 497     wxChar      trimchars[4];
 498     trimchars[0] = wxT('\n');
 499     trimchars[1] = wxT(' ');
 500     trimchars[2] = wxT('\t');
 501     trimchars[3] = 0;
 502
 503 #ifdef __WXMSW__
 504     const wxChar     SEP = wxT('\\');
 505 #else
 506     const wxChar     SEP = wxT('/');
 507 #endif
 508     buf[0] = wxT('\0');
 509     if (name == NULL || *name == wxT('\0'))
 510         return buf;
 511     nm = MYcopystring(name); // Make a scratch copy
 512     wxChar *nm_tmp = nm;
 513
 514     /* Skip leading whitespace and cr */
 515     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 516         nm++;
 517     /* And strip off trailing whitespace and cr */
 518     s = nm + (q = wxStrlen(nm)) - 1;
 519     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 520         *s = wxT('\0');
 521
 522     s = nm;
 523     d = lnm;
 524 #ifdef __WXMSW__
 525     q = FALSE;
 526 #else
 527     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 528 #endif
 529
 530     /* Expand inline environment variables */
 531 #ifdef __VISAGECPP__
 532     while (*d)
 533     {
 534       *d++ = *s;
 535       if(*s == wxT('\\'))
 536       {
 537         *(d - 1) = *++s;
 538         if (*d)
 539         {
 540           s++;
 541           continue;
 542         }
 543         else
 544            break;
 545       }
 546       else
 547 #else
 548     while ((*d++ = *s) != 0) {
 549 #  ifndef __WXMSW__
 550         if (*s == wxT('\\')) {
 551             if ((*(d - 1) = *++s)!=0) {
 552                 s++;
 553                 continue;
 554             } else
 555                 break;
 556         } else
 557 #  endif
 558 #endif
 559             // No env variables on WinCE
 560 #ifndef __WXWINCE__
 561 #ifdef __WXMSW__
 562         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 563 #else
 564         if (*s++ == wxT('$'))
 565 #endif
 566         {
 567             register wxChar  *start = d;
 568             register int     braces = (*s == wxT('{') || *s == wxT('('));
 569             register wxChar  *value;
 570             while ((*d++ = *s) != 0)
 571                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 572                     break;
 573                 else
 574                     s++;
 575             *--d = 0;
 576             value = wxGetenv(braces ? start + 1 : start);
 577             if (value) {
 578                 for ((d = start - 1); (*d++ = *value++) != 0;)
 579                 {
 580                     // Empty
 581                 }
 582
 583                 d--;
 584                 if (braces && *s)
 585                     s++;
 586             }
 587         }
 588 #endif
 589         // __WXWINCE__
 590     }
 591
 592     /* Expand ~ and ~user */
 593     nm = lnm;
 594     if (nm[0] == wxT('~') && !q)
 595     {
 596         /* prefix ~ */
 597         if (nm[1] == SEP || nm[1] == 0)
 598         {        /* ~/filename */
 599         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 600             if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
 601                 if (*++nm)
 602                     nm++;
 603             }
 604         } else
 605         {                /* ~user/filename */
 606             register wxChar  *nnm;
 607             register wxChar  *home;
 608             for (s = nm; *s && *s != SEP; s++)
 609             {
 610                 // Empty
 611             }
 612             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 613             was_sep = (*s == SEP);
 614             nnm = *s ? s + 1 : s;
 615             *s = 0;
 616         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 617             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL)
 618             {
 619                 if (was_sep) /* replace only if it was there: */
 620                     *s = SEP;
 621                 s = NULL;
 622             }
 623             else
 624             {
 625                 nm = nnm;
 626                 s = home;
 627             }
 628         }
 629     }
 630
 631     d = buf;
 632     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 633         /* Copy home dir */
 634         while (wxT('\0') != (*d++ = *s++))
 635           /* loop */;
 636         // Handle root home
 637         if (d - 1 > buf && *(d - 2) != SEP)
 638           *(d - 1) = SEP;
 639     }
 640     s = nm;
 641     while ((*d++ = *s++) != 0)
 642     {
 643         // Empty
 644     }
 645     delete[] nm_tmp; // clean up alloc
 646     /* Now clean up the buffer */
 647     return wxRealPath(buf);
 648 }
 649
 650 /* Contract Paths to be build upon an environment variable
 651    component:
 652
 653    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 654
 655    The call wxExpandPath can convert these back!
 656  */
 657 wxChar *
 658 wxContractPath (const wxString& filename,
 659                 const wxString& WXUNUSED_IN_WINCE(envname),
 660                 const wxString& user)
 661 {
 662   static wxChar dest[_MAXPATHLEN];
 663
 664   if (filename.empty())
 665     return (wxChar *) NULL;
 666
 667   wxStrcpy (dest, WXSTRINGCAST filename);
 668 #ifdef __WXMSW__
 669   wxUnix2DosFilename(dest);
 670 #endif
 671
 672   // Handle environment
 673   const wxChar *val;
 674 #ifndef __WXWINCE__
 675   wxChar *tcp;
 676   if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 677      (tcp = wxStrstr (dest, val)) != NULL)
 678     {
 679         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 680         *tcp++ = wxT('$');
 681         *tcp++ = wxT('{');
 682         wxStrcpy (tcp, WXSTRINGCAST envname);
 683         wxStrcat (tcp, wxT("}"));
 684         wxStrcat (tcp, wxFileFunctionsBuffer);
 685     }
 686 #endif
 687
 688   // Handle User's home (ignore root homes!)
 689   val = wxGetUserHome (user);
 690   if (!val)
 691     return dest;
 692
 693   const size_t len = wxStrlen(val);
 694   if (len <= 2)
 695     return dest;
 696
 697   if (wxStrncmp(dest, val, len) == 0)
 698   {
 699     wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 700     if (!user.empty())
 701            wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 702     wxStrcat(wxFileFunctionsBuffer, dest + len);
 703     wxStrcpy (dest, wxFileFunctionsBuffer);
 704   }
 705
 706   return dest;
 707 }
 708
 709 // Return just the filename, not the path (basename)
 710 wxChar *wxFileNameFromPath (wxChar *path)
 711 {
 712     wxString p = path;
 713     wxString n = wxFileNameFromPath(p);
 714
 715     return path + p.length() - n.length();
 716 }
 717
 718 wxString wxFileNameFromPath (const wxString& path)
 719 {
 720     wxString name, ext;
 721     wxFileName::SplitPath(path, NULL, &name, &ext);
 722
 723     wxString fullname = name;
 724     if ( !ext.empty() )
 725     {
 726         fullname << wxFILE_SEP_EXT << ext;
 727     }
 728
 729     return fullname;
 730 }
 731
 732 // Return just the directory, or NULL if no directory
 733 wxChar *
 734 wxPathOnly (wxChar *path)
 735 {
 736     if (path && *path)
 737     {
 738         static wxChar buf[_MAXPATHLEN];
 739
 740         // Local copy
 741         wxStrcpy (buf, path);
 742
 743         int l = wxStrlen(path);
 744         int i = l - 1;
 745
 746         // Search backward for a backward or forward slash
 747         while (i > -1)
 748         {
 749 #if defined(__WXMAC__) && !defined(__DARWIN__)
 750             // Classic or Carbon CodeWarrior like
 751             // Carbon with Apple DevTools is Unix like
 752             if (path[i] == wxT(':') )
 753             {
 754                 buf[i] = 0;
 755                 return buf;
 756             }
 757 #else
 758             // Unix like or Windows
 759             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 760             {
 761                 buf[i] = 0;
 762                 return buf;
 763             }
 764 #endif
 765 #ifdef __VMS__
 766             if (path[i] == wxT(']'))
 767             {
 768                 buf[i+1] = 0;
 769                 return buf;
 770             }
 771 #endif
 772             i --;
 773         }
 774
 775 #if defined(__WXMSW__) || defined(__OS2__)
 776         // Try Drive specifier
 777         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 778         {
 779             // A:junk --> A:. (since A:.\junk Not A:\junk)
 780             buf[2] = wxT('.');
 781             buf[3] = wxT('\0');
 782             return buf;
 783         }
 784 #endif
 785     }
 786     return (wxChar *) NULL;
 787 }
 788
 789 // Return just the directory, or NULL if no directory
 790 wxString wxPathOnly (const wxString& path)
 791 {
 792     if (!path.empty())
 793     {
 794         wxChar buf[_MAXPATHLEN];
 795
 796         // Local copy
 797         wxStrcpy (buf, WXSTRINGCAST path);
 798
 799         int l = path.length();
 800         int i = l - 1;
 801
 802         // Search backward for a backward or forward slash
 803         while (i > -1)
 804         {
 805 #if defined(__WXMAC__) && !defined(__DARWIN__)
 806             // Classic or Carbon CodeWarrior like
 807             // Carbon with Apple DevTools is Unix like
 808             if (path[i] == wxT(':') )
 809             {
 810                 buf[i] = 0;
 811                 return wxString(buf);
 812             }
 813 #else
 814             // Unix like or Windows
 815             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 816             {
 817                 // Don't return an empty string
 818                 if (i == 0)
 819                     i ++;
 820                 buf[i] = 0;
 821                 return wxString(buf);
 822             }
 823 #endif
 824 #ifdef __VMS__
 825             if (path[i] == wxT(']'))
 826             {
 827                 buf[i+1] = 0;
 828                 return wxString(buf);
 829             }
 830 #endif
 831             i --;
 832         }
 833
 834 #if defined(__WXMSW__) || defined(__OS2__)
 835         // Try Drive specifier
 836         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 837         {
 838             // A:junk --> A:. (since A:.\junk Not A:\junk)
 839             buf[2] = wxT('.');
 840             buf[3] = wxT('\0');
 841             return wxString(buf);
 842         }
 843 #endif
 844     }
 845     return wxEmptyString;
 846 }
 847
 848 // Utility for converting delimiters in DOS filenames to UNIX style
 849 // and back again - or we get nasty problems with delimiters.
 850 // Also, convert to lower case, since case is significant in UNIX.
 851
 852 #if defined(__WXMAC__)
 853
 854 #if TARGET_API_MAC_OSX
 855 #define kDefaultPathStyle kCFURLPOSIXPathStyle
 856 #else
 857 #define kDefaultPathStyle kCFURLHFSPathStyle
 858 #endif
 859
 860 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
 861 {
 862     CFURLRef fullURLRef;
 863     fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
 864     if ( additionalPathComponent )
 865     {
 866         CFURLRef parentURLRef = fullURLRef ;
 867         fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
 868             additionalPathComponent,false);
 869         CFRelease( parentURLRef ) ;
 870     }
 871     CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
 872     CFRelease( fullURLRef ) ;
 873     CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfString);
 874     CFRelease( cfString );
 875     CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
 876     return wxMacCFStringHolder(cfMutableString).AsString();
 877 }
 878
 879 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
 880 {
 881     OSStatus err = noErr ;
 882     CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, wxMacCFStringHolder(path));
 883     CFStringNormalize(cfMutableString,kCFStringNormalizationFormD);
 884     CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfMutableString , kDefaultPathStyle, false);
 885     CFRelease( cfMutableString );
 886     if ( NULL != url )
 887     {
 888         if ( CFURLGetFSRef(url, fsRef) == false )
 889             err = fnfErr ;
 890         CFRelease( url ) ;
 891     }
 892     else
 893     {
 894         err = fnfErr ;
 895     }
 896     return err ;
 897 }
 898
 899 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
 900 {
 901     CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
 902                                                       uniname->unicode,
 903                                                       uniname->length );
 904     CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfname);
 905     CFRelease( cfname );
 906     CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
 907     return wxMacCFStringHolder(cfMutableString).AsString() ;
 908 }
 909
 910 #ifndef __LP64__
 911
 912 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 913 {
 914     FSRef fsRef ;
 915     if ( FSpMakeFSRef( spec , &fsRef) == noErr )
 916     {
 917         return wxMacFSRefToPath( &fsRef ) ;
 918     }
 919     return wxEmptyString ;
 920 }
 921
 922 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
 923 {
 924     OSStatus err = noErr ;
 925     FSRef fsRef ;
 926     wxMacPathToFSRef( path , &fsRef ) ;
 927     err = FSRefMakeFSSpec( &fsRef , spec ) ;
 928 }
 929 #endif
 930
 931 #endif // __WXMAC__
 932
 933 void
 934 wxDos2UnixFilename (wxChar *s)
 935 {
 936   if (s)
 937     while (*s)
 938       {
 939         if (*s == _T('\\'))
 940           *s = _T('/');
 941 #ifdef __WXMSW__
 942         else
 943           *s = (wxChar)wxTolower (*s);        // Case INDEPENDENT
 944 #endif
 945         s++;
 946       }
 947 }
 948
 949 void
 950 #if defined(__WXMSW__) || defined(__OS2__)
 951 wxUnix2DosFilename (wxChar *s)
 952 #else
 953 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 954 #endif
 955 {
 956 // Yes, I really mean this to happen under DOS only! JACS
 957 #if defined(__WXMSW__) || defined(__OS2__)
 958   if (s)
 959     while (*s)
 960       {
 961         if (*s == wxT('/'))
 962           *s = wxT('\\');
 963         s++;
 964       }
 965 #endif
 966 }
 967
 968 // Concatenate two files to form third
 969 bool
 970 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 971 {
 972 #if wxUSE_FILE
 973
 974     wxFile in1(file1), in2(file2);
 975     wxTempFile out(file3);
 976
 977     if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
 978         return false;
 979
 980     ssize_t ofs;
 981     unsigned char buf[1024];
 982
 983     for( int i=0; i<2; i++)
 984     {
 985         wxFile *in = i==0 ? &in1 : &in2;
 986         do{
 987             if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
 988             if ( ofs > 0 )
 989                 if ( !out.Write(buf,ofs) )
 990                     return false;
 991         } while ( ofs == (ssize_t)WXSIZEOF(buf) );
 992     }
 993
 994     return out.Commit();
 995
 996 #else
 997
 998     wxUnusedVar(file1);
 999     wxUnusedVar(file2);
1000     wxUnusedVar(file3);
1001     return false;
1002
1003 #endif
1004 }
1005
1006 // Copy files
1007 bool
1008 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1009 {
1010 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1011     // CopyFile() copies file attributes and modification time too, so use it
1012     // instead of our code if available
1013     //
1014     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1015     if ( !::CopyFile(file1, file2, !overwrite) )
1016     {
1017         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1018                       file1.c_str(), file2.c_str());
1019
1020         return false;
1021     }
1022 #elif defined(__OS2__)
1023     if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1024         return false;
1025 #elif defined(__PALMOS__)
1026     // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1027     return false;
1028 #elif wxUSE_FILE // !Win32
1029
1030     wxStructStat fbuf;
1031     // get permissions of file1
1032     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1033     {
1034         // the file probably doesn't exist or we haven't the rights to read
1035         // from it anyhow
1036         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1037                       file1.c_str());
1038         return false;
1039     }
1040
1041     // open file1 for reading
1042     wxFile fileIn(file1, wxFile::read);
1043     if ( !fileIn.IsOpened() )
1044         return false;
1045
1046     // remove file2, if it exists. This is needed for creating
1047     // file2 with the correct permissions in the next step
1048     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1049     {
1050         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1051                       file2.c_str());
1052         return false;
1053     }
1054
1055     // reset the umask as we want to create the file with exactly the same
1056     // permissions as the original one
1057     wxCHANGE_UMASK(0);
1058
1059     // create file2 with the same permissions than file1 and open it for
1060     // writing
1061
1062     wxFile fileOut;
1063     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1064         return false;
1065
1066     // copy contents of file1 to file2
1067     char buf[4096];
1068     size_t count;
1069     for ( ;; )
1070     {
1071         count = fileIn.Read(buf, WXSIZEOF(buf));
1072         if ( fileIn.Error() )
1073             return false;
1074
1075         // end of file?
1076         if ( !count )
1077             break;
1078
1079         if ( fileOut.Write(buf, count) < count )
1080             return false;
1081     }
1082
1083     // we can expect fileIn to be closed successfully, but we should ensure
1084     // that fileOut was closed as some write errors (disk full) might not be
1085     // detected before doing this
1086     if ( !fileIn.Close() || !fileOut.Close() )
1087         return false;
1088
1089 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1090     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1091     // however
1092     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1093     {
1094         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1095                       file2.c_str());
1096         return false;
1097     }
1098 #endif // OS/2 || Mac
1099
1100 #else // !Win32 && ! wxUSE_FILE
1101
1102     // impossible to simulate with wxWidgets API
1103     wxUnusedVar(file1);
1104     wxUnusedVar(file2);
1105     wxUnusedVar(overwrite);
1106     return false;
1107
1108 #endif // __WXMSW__ && __WIN32__
1109
1110     return true;
1111 }
1112
1113 bool
1114 wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite)
1115 {
1116     if ( !overwrite && wxFileExists(file2) )
1117     {
1118         wxLogSysError
1119         (
1120             _("Failed to rename the file '%s' to '%s' because the destination file already exists."),
1121             file1.c_str(), file2.c_str()
1122         );
1123
1124         return false;
1125     }
1126
1127 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1128     // Normal system call
1129   if ( wxRename (file1, file2) == 0 )
1130     return true;
1131 #endif
1132
1133   // Try to copy
1134   if (wxCopyFile(file1, file2, overwrite)) {
1135     wxRemoveFile(file1);
1136     return true;
1137   }
1138   // Give up
1139   return false;
1140 }
1141
1142 bool wxRemoveFile(const wxString& file)
1143 {
1144 #if defined(__VISUALC__) \
1145  || defined(__BORLANDC__) \
1146  || defined(__WATCOMC__) \
1147  || defined(__DMC__) \
1148  || defined(__GNUWIN32__) \
1149  || (defined(__MWERKS__) && defined(__MSL__))
1150     int res = wxRemove(file);
1151 #elif defined(__WXMAC__)
1152     int res = unlink(wxFNCONV(file));
1153 #elif defined(__WXPALMOS__)
1154     int res = 1;
1155     // TODO with VFSFileDelete()
1156 #else
1157     int res = unlink(OS_FILENAME(file));
1158 #endif
1159
1160     return res == 0;
1161 }
1162
1163 bool wxMkdir(const wxString& dir, int perm)
1164 {
1165 #if defined(__WXPALMOS__)
1166     return false;
1167 #elif defined(__WXMAC__) && !defined(__UNIX__)
1168     return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1169 #else // !Mac
1170     const wxChar *dirname = dir.c_str();
1171
1172     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1173     // for the GNU compiler
1174 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1175   #if defined(MSVCRT)
1176     wxUnusedVar(perm);
1177     if ( mkdir(wxFNCONV(dirname)) != 0 )
1178   #else
1179     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1180   #endif
1181 #elif defined(__OS2__)
1182     wxUnusedVar(perm);
1183     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1184 #elif defined(__DOS__)
1185   #if defined(__WATCOMC__)
1186     (void)perm;
1187     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1188   #elif defined(__DJGPP__)
1189     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1190   #else
1191     #error "Unsupported DOS compiler!"
1192   #endif
1193 #else  // !MSW, !DOS and !OS/2 VAC++
1194     wxUnusedVar(perm);
1195 #ifdef __WXWINCE__
1196     if ( !CreateDirectory(dirname, NULL) )
1197 #else
1198     if ( wxMkDir(dir.fn_str()) != 0 )
1199 #endif
1200 #endif // !MSW/MSW
1201     {
1202         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1203
1204         return false;
1205     }
1206
1207     return true;
1208 #endif // Mac/!Mac
1209 }
1210
1211 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1212 {
1213 #if defined(__VMS__)
1214     return false; //to be changed since rmdir exists in VMS7.x
1215 #elif defined(__OS2__)
1216     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1217 #elif defined(__WXWINCE__)
1218     return (CreateDirectory(dir, NULL) != 0);
1219 #elif defined(__WXPALMOS__)
1220     // TODO with VFSFileRename()
1221     return false;
1222 #else
1223     return (wxRmDir(OS_FILENAME(dir)) == 0);
1224 #endif
1225 }
1226
1227 // does the path exists? (may have or not '/' or '\\' at the end)
1228 bool wxDirExists(const wxChar *pszPathName)
1229 {
1230     wxString strPath(pszPathName);
1231
1232 #if defined(__WINDOWS__) || defined(__OS2__)
1233     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1234     // so remove all trailing backslashes from the path - but don't do this for
1235     // the pathes "d:\" (which are different from "d:") nor for just "\"
1236     while ( wxEndsWithPathSeparator(strPath) )
1237     {
1238         size_t len = strPath.length();
1239         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1240             break;
1241
1242         strPath.Truncate(len - 1);
1243     }
1244 #endif // __WINDOWS__
1245
1246 #ifdef __OS2__
1247     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1248     if (strPath.length() == 2 && strPath[1u] == _T(':'))
1249         strPath << _T('.');
1250 #endif
1251
1252 #if defined(__WXPALMOS__)
1253     return false;
1254 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1255     // stat() can't cope with network paths
1256     DWORD ret = ::GetFileAttributes(strPath);
1257
1258     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1259 #elif defined(__OS2__)
1260     FILESTATUS3 Info = {{0}};
1261     APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
1262                                    (void*) &Info, sizeof(FILESTATUS3));
1263
1264     return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
1265       (rc == ERROR_SHARING_VIOLATION);
1266     // If we got a sharing violation, there must be something with this name.
1267 #else // !__WIN32__
1268
1269     wxStructStat st;
1270 #ifndef __VISAGECPP__
1271     return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1272 #else
1273     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1274     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1275 #endif
1276
1277 #endif // __WIN32__/!__WIN32__
1278 }
1279
1280 // Get a temporary filename, opening and closing the file.
1281 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1282 {
1283     wxString filename;
1284     if ( !wxGetTempFileName(prefix, filename) )
1285         return NULL;
1286
1287     if ( buf )
1288         wxStrcpy(buf, filename);
1289     else
1290         buf = MYcopystring(filename);
1291
1292     return buf;
1293 }
1294
1295 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1296 {
1297 #if wxUSE_FILE
1298     buf = wxGetTempFileName(prefix);
1299
1300     return !buf.empty();
1301 #else // !wxUSE_FILE
1302     wxUnusedVar(prefix);
1303     wxUnusedVar(buf);
1304
1305     return false;
1306 #endif // wxUSE_FILE/!wxUSE_FILE
1307 }
1308
1309 // Get first file name matching given wild card.
1310
1311 static wxDir *gs_dir = NULL;
1312 static wxString gs_dirPath;
1313
1314 wxString wxFindFirstFile(const wxChar *spec, int flags)
1315 {
1316     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1317     if ( gs_dirPath.empty() )
1318         gs_dirPath = wxT(".");
1319     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1320         gs_dirPath << wxFILE_SEP_PATH;
1321
1322     if (gs_dir)
1323         delete gs_dir;
1324     gs_dir = new wxDir(gs_dirPath);
1325
1326     if ( !gs_dir->IsOpened() )
1327     {
1328         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1329         return wxEmptyString;
1330     }
1331
1332     int dirFlags;
1333     switch (flags)
1334     {
1335         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1336         case wxFILE: dirFlags = wxDIR_FILES; break;
1337         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1338     }
1339
1340     wxString result;
1341     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1342     if ( result.empty() )
1343     {
1344         wxDELETE(gs_dir);
1345         return result;
1346     }
1347
1348     return gs_dirPath + result;
1349 }
1350
1351 wxString wxFindNextFile()
1352 {
1353     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1354
1355     wxString result;
1356     gs_dir->GetNext(&result);
1357
1358     if ( result.empty() )
1359     {
1360         wxDELETE(gs_dir);
1361         return result;
1362     }
1363
1364     return gs_dirPath + result;
1365 }
1366
1367
1368 // Get current working directory.
1369 // If buf is NULL, allocates space using new, else copies into buf.
1370 // wxGetWorkingDirectory() is obsolete, use wxGetCwd()
1371 // wxDoGetCwd() is their common core to be moved
1372 // to wxGetCwd() once wxGetWorkingDirectory() will be removed.
1373 // Do not expose wxDoGetCwd in headers!
1374
1375 wxChar *wxDoGetCwd(wxChar *buf, int sz)
1376 {
1377 #if defined(__WXPALMOS__)
1378     // TODO
1379     if(buf && sz>0) buf[0] = _T('\0');
1380     return buf;
1381 #elif defined(__WXWINCE__)
1382     // TODO
1383     if(buf && sz>0) buf[0] = _T('\0');
1384     return buf;
1385 #else
1386     if ( !buf )
1387     {
1388         buf = new wxChar[sz + 1];
1389     }
1390
1391     bool ok wxDUMMY_INITIALIZE(false);
1392
1393     // for the compilers which have Unicode version of _getcwd(), call it
1394     // directly, for the others call the ANSI version and do the translation
1395 #if !wxUSE_UNICODE
1396     #define cbuf buf
1397 #else // wxUSE_UNICODE
1398     bool needsANSI = true;
1399
1400     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1401         char cbuf[_MAXPATHLEN];
1402     #endif
1403
1404     #ifdef HAVE_WGETCWD
1405         #if wxUSE_UNICODE_MSLU
1406             if ( wxGetOsVersion() != wxOS_WINDOWS_9X )
1407         #else
1408             char *cbuf = NULL; // never really used because needsANSI will always be false
1409         #endif
1410             {
1411                 ok = _wgetcwd(buf, sz) != NULL;
1412                 needsANSI = false;
1413             }
1414     #endif
1415
1416     if ( needsANSI )
1417 #endif // wxUSE_UNICODE
1418     {
1419     #if defined(_MSC_VER) || defined(__MINGW32__)
1420         ok = _getcwd(cbuf, sz) != NULL;
1421     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1422         char lbuf[1024] ;
1423         if ( getcwd( lbuf , sizeof( lbuf ) ) )
1424         {
1425             wxString res( lbuf , *wxConvCurrent ) ;
1426             wxStrcpy( buf , res ) ;
1427             ok = true;
1428         }
1429         else
1430             ok = false ;
1431     #elif defined(__OS2__)
1432         APIRET rc;
1433         ULONG ulDriveNum = 0;
1434         ULONG ulDriveMap = 0;
1435         rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1436         ok = rc == 0;
1437         if (ok)
1438         {
1439             sz -= 3;
1440             rc = ::DosQueryCurrentDir( 0 // current drive
1441                                       ,cbuf + 3
1442                                       ,(PULONG)&sz
1443                                      );
1444             cbuf[0] = char('A' + (ulDriveNum - 1));
1445             cbuf[1] = ':';
1446             cbuf[2] = '\\';
1447             ok = rc == 0;
1448         }
1449     #else // !Win32/VC++ !Mac !OS2
1450         ok = getcwd(cbuf, sz) != NULL;
1451     #endif // platform
1452
1453     #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1454         // finally convert the result to Unicode if needed
1455         wxConvFile.MB2WC(buf, cbuf, sz);
1456     #endif // wxUSE_UNICODE
1457     }
1458
1459     if ( !ok )
1460     {
1461         wxLogSysError(_("Failed to get the working directory"));
1462
1463         // VZ: the old code used to return "." on error which didn't make any
1464         //     sense at all to me - empty string is a better error indicator
1465         //     (NULL might be even better but I'm afraid this could lead to
1466         //     problems with the old code assuming the return is never NULL)
1467         buf[0] = _T('\0');
1468     }
1469     else // ok, but we might need to massage the path into the right format
1470     {
1471 #ifdef __DJGPP__
1472         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1473         //     with / deliminers. We don't like that.
1474         for (wxChar *ch = buf; *ch; ch++)
1475         {
1476             if (*ch == wxT('/'))
1477                 *ch = wxT('\\');
1478         }
1479 #endif // __DJGPP__
1480
1481 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1482 //      he needs Unix as opposed to Win32 pathnames
1483 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1484         // another example of DOS/Unix mix (Cygwin)
1485         wxString pathUnix = buf;
1486 #if wxUSE_UNICODE
1487         char bufA[_MAXPATHLEN];
1488         cygwin_conv_to_full_win32_path(pathUnix.mb_str(wxConvFile), bufA);
1489         wxConvFile.MB2WC(buf, bufA, sz);
1490 #else
1491         cygwin_conv_to_full_win32_path(pathUnix, buf);
1492 #endif // wxUSE_UNICODE
1493 #endif // __CYGWIN__
1494     }
1495
1496     return buf;
1497
1498 #if !wxUSE_UNICODE
1499     #undef cbuf
1500 #endif
1501
1502 #endif
1503     // __WXWINCE__
1504 }
1505
1506 #if WXWIN_COMPATIBILITY_2_6
1507 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1508 {
1509     return wxDoGetCwd(buf,sz);
1510 }
1511 #endif // WXWIN_COMPATIBILITY_2_6
1512
1513 wxString wxGetCwd()
1514 {
1515     wxString str;
1516     wxDoGetCwd(wxStringBuffer(str, _MAXPATHLEN), _MAXPATHLEN);
1517     return str;
1518 }
1519
1520 bool wxSetWorkingDirectory(const wxString& d)
1521 {
1522 #if defined(__OS2__)
1523     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1524 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1525     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1526 #elif defined(__WINDOWS__)
1527
1528 #ifdef __WIN32__
1529 #ifdef __WXWINCE__
1530     // No equivalent in WinCE
1531     wxUnusedVar(d);
1532     return false;
1533 #else
1534     return (bool)(SetCurrentDirectory(d) != 0);
1535 #endif
1536 #else
1537     // Must change drive, too.
1538     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1539     if (isDriveSpec)
1540     {
1541         wxChar firstChar = d[0];
1542
1543         // To upper case
1544         if (firstChar > 90)
1545             firstChar = firstChar - 32;
1546
1547         // To a drive number
1548         unsigned int driveNo = firstChar - 64;
1549         if (driveNo > 0)
1550         {
1551             unsigned int noDrives;
1552             _dos_setdrive(driveNo, &noDrives);
1553         }
1554     }
1555     bool success = (chdir(WXSTRINGCAST d) == 0);
1556
1557     return success;
1558 #endif
1559
1560 #endif
1561 }
1562
1563 // Get the OS directory if appropriate (such as the Windows directory).
1564 // On non-Windows platform, probably just return the empty string.
1565 wxString wxGetOSDirectory()
1566 {
1567 #ifdef __WXWINCE__
1568     return wxString(wxT("\\Windows"));
1569 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1570     wxChar buf[256];
1571     GetWindowsDirectory(buf, 256);
1572     return wxString(buf);
1573 #elif defined(__WXMAC__)
1574     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1575 #else
1576     return wxEmptyString;
1577 #endif
1578 }
1579
1580 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1581 {
1582     size_t len = wxStrlen(pszFileName);
1583
1584     return len && wxIsPathSeparator(pszFileName[len - 1]);
1585 }
1586
1587 // find a file in a list of directories, returns false if not found
1588 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1589 {
1590     // we assume that it's not empty
1591     wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1592                  _T("empty file name in wxFindFileInPath"));
1593
1594     // skip path separator in the beginning of the file name if present
1595     if ( wxIsPathSeparator(*pszFile) )
1596         pszFile++;
1597
1598     // copy the path (strtok will modify it)
1599     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1600     wxStrcpy(szPath, pszPath);
1601
1602     wxString strFile;
1603     wxChar *pc, *save_ptr;
1604     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1605           pc != NULL;
1606           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1607     {
1608         // search for the file in this directory
1609         strFile = pc;
1610         if ( !wxEndsWithPathSeparator(pc) )
1611             strFile += wxFILE_SEP_PATH;
1612         strFile += pszFile;
1613
1614         if ( wxFileExists(strFile) ) {
1615             *pStr = strFile;
1616             break;
1617         }
1618     }
1619
1620     // suppress warning about unused variable save_ptr when wxStrtok() is a
1621     // macro which throws away its third argument
1622     save_ptr = pc;
1623
1624     delete [] szPath;
1625
1626     return pc != NULL;  // if true => we breaked from the loop
1627 }
1628
1629 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1630                              wxString *pstrPath,
1631                              wxString *pstrName,
1632                              wxString *pstrExt)
1633 {
1634     // it can be empty, but it shouldn't be NULL
1635     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1636
1637     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1638 }
1639
1640 #if wxUSE_DATETIME
1641
1642 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1643 {
1644     wxDateTime mtime;
1645     if ( !wxFileName(filename).GetTimes(NULL, &mtime, NULL) )
1646         return (time_t)-1;
1647
1648     return mtime.GetTicks();
1649 }
1650
1651 #endif // wxUSE_DATETIME
1652
1653
1654 // Parses the filterStr, returning the number of filters.
1655 // Returns 0 if none or if there's a problem.
1656 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1657
1658 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr,
1659                                            wxArrayString& descriptions,
1660                                            wxArrayString& filters)
1661 {
1662     descriptions.Clear();
1663     filters.Clear();
1664
1665     wxString str(filterStr);
1666
1667     wxString description, filter;
1668     int pos = 0;
1669     while( pos != wxNOT_FOUND )
1670     {
1671         pos = str.Find(wxT('|'));
1672         if ( pos == wxNOT_FOUND )
1673         {
1674             // if there are no '|'s at all in the string just take the entire
1675             // string as filter and make description empty for later autocompletion
1676             if ( filters.IsEmpty() )
1677             {
1678                 descriptions.Add(wxEmptyString);
1679                 filters.Add(filterStr);
1680             }
1681             else
1682             {
1683                 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1684             }
1685
1686             break;
1687         }
1688
1689         description = str.Left(pos);
1690         str = str.Mid(pos + 1);
1691         pos = str.Find(wxT('|'));
1692         if ( pos == wxNOT_FOUND )
1693         {
1694             filter = str;
1695         }
1696         else
1697         {
1698             filter = str.Left(pos);
1699             str = str.Mid(pos + 1);
1700         }
1701
1702         descriptions.Add(description);
1703         filters.Add(filter);
1704     }
1705
1706 #if defined(__WXMOTIF__)
1707     // split it so there is one wildcard per entry
1708     for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1709     {
1710         pos = filters[i].Find(wxT(';'));
1711         if (pos != wxNOT_FOUND)
1712         {
1713             // first split only filters
1714             descriptions.Insert(descriptions[i],i+1);
1715             filters.Insert(filters[i].Mid(pos+1),i+1);
1716             filters[i]=filters[i].Left(pos);
1717
1718             // autoreplace new filter in description with pattern:
1719             //     C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1720             // cause split into:
1721             //     C/C++ Files(*.cpp)|*.cpp
1722             //     C/C++ Files(*.c;*.h)|*.c;*.h
1723             // and next iteration cause another split into:
1724             //     C/C++ Files(*.cpp)|*.cpp
1725             //     C/C++ Files(*.c)|*.c
1726             //     C/C++ Files(*.h)|*.h
1727             for ( size_t k=i;k<i+2;k++ )
1728             {
1729                 pos = descriptions[k].Find(filters[k]);
1730                 if (pos != wxNOT_FOUND)
1731                 {
1732                     wxString before = descriptions[k].Left(pos);
1733                     wxString after = descriptions[k].Mid(pos+filters[k].Len());
1734                     pos = before.Find(_T('('),true);
1735                     if (pos>before.Find(_T(')'),true))
1736                     {
1737                         before = before.Left(pos+1);
1738                         before << filters[k];
1739                         pos = after.Find(_T(')'));
1740                         int pos1 = after.Find(_T('('));
1741                         if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1742                         {
1743                             before << after.Mid(pos);
1744                             descriptions[k] = before;
1745                         }
1746                     }
1747                 }
1748             }
1749         }
1750     }
1751 #endif
1752
1753     // autocompletion
1754     for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1755     {
1756         if ( descriptions[j].empty() && !filters[j].empty() )
1757         {
1758             descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1759         }
1760     }
1761
1762     return filters.GetCount();
1763 }
1764
1765 #if defined( __WINDOWS__ )
1766 bool wxCheckGenericPermission(const wxString &path, DWORD access)
1767 {
1768     // quoting the MSDN: "To obtain a handle to a directory, call the
1769     // CreateFile function with the FILE_FLAG_BACKUP_SEMANTICS flag"
1770     wxWinVersion ver = wxGetWinVersion();
1771     bool isdir = wxDirExists(path);
1772     if (isdir && (ver == wxWinVersion_95 || ver == wxWinVersion_98 || ver == wxWinVersion_ME))
1773     {
1774         // however Win95/98/ME do not support FILE_FLAG_BACKUP_SEMANTICS...
1775         if (access == GENERIC_READ)
1776         {
1777             WIN32_FILE_ATTRIBUTE_DATA data;
1778             if (GetFileAttributesEx(path.c_str(), GetFileExInfoStandard, &data) == 0)
1779                 return false;        // cannot query attributes
1780             return (data.dwFileAttributes & FILE_ATTRIBUTE_READONLY) == 0;
1781         }
1782
1783         // FIXME: is it true that directories are always writable & executable on Win9X family ?
1784         return true;
1785     }
1786     else
1787     {
1788         HANDLE h = CreateFile(path.c_str(), access,
1789                               FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
1790                               OPEN_EXISTING, isdir ? FILE_FLAG_BACKUP_SEMANTICS : 0, NULL);
1791         if (h != INVALID_HANDLE_VALUE)
1792             CloseHandle(h);
1793
1794         return h != INVALID_HANDLE_VALUE;
1795     }
1796 }
1797 #endif
1798
1799 bool wxIsWritable(const wxString &path)
1800 {
1801 #if defined( __UNIX__ )
1802     // access() will take in count also symbolic links
1803     return access(wxConvFile.cWX2MB(path), W_OK) == 0;
1804 #elif defined( __WINDOWS__ )
1805     return wxCheckGenericPermission(path, GENERIC_WRITE);
1806 #else
1807     wxUnusedVar(path);
1808     // TODO
1809     return false;
1810 #endif
1811 }
1812
1813 bool wxIsReadable(const wxString &path)
1814 {
1815 #if defined( __UNIX__ )
1816     // access() will take in count also symbolic links
1817     return access(wxConvFile.cWX2MB(path), R_OK) == 0;
1818 #elif defined( __WINDOWS__ )
1819     return wxCheckGenericPermission(path, GENERIC_READ);
1820 #else
1821     wxUnusedVar(path);
1822     // TODO
1823     return false;
1824 #endif
1825 }
1826
1827 bool wxIsExecutable(const wxString &path)
1828 {
1829 #if defined( __UNIX__ )
1830     // access() will take in count also symbolic links
1831     return access(wxConvFile.cWX2MB(path), X_OK) == 0;
1832 #elif defined( __WINDOWS__ )
1833    return wxCheckGenericPermission(path, GENERIC_EXECUTE);
1834 #else
1835     wxUnusedVar(path);
1836     // TODO
1837     return false;
1838 #endif
1839 }
1840
1841
1842 //------------------------------------------------------------------------
1843 // wild character routines
1844 //------------------------------------------------------------------------
1845
1846 bool wxIsWild( const wxString& pattern )
1847 {
1848     wxString tmp = pattern;
1849     wxChar *pat = WXSTRINGCAST(tmp);
1850     while (*pat)
1851     {
1852         switch (*pat++)
1853         {
1854         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1855             return true;
1856         case wxT('\\'):
1857             if (!*pat++)
1858                 return false;
1859         }
1860     }
1861     return false;
1862 }
1863
1864 /*
1865 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1866 *
1867 * The match procedure is public domain code (from ircII's reg.c)
1868 * but modified to suit our tastes (RN: No "%" syntax I guess)
1869 */
1870
1871 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1872 {
1873     if (text.empty())
1874     {
1875         /* Match if both are empty. */
1876         return pat.empty();
1877     }
1878
1879     const wxChar *m = pat.c_str(),
1880     *n = text.c_str(),
1881     *ma = NULL,
1882     *na = NULL;
1883     int just = 0,
1884     acount = 0,
1885     count = 0;
1886
1887     if (dot_special && (*n == wxT('.')))
1888     {
1889         /* Never match so that hidden Unix files
1890          * are never found. */
1891         return false;
1892     }
1893
1894     for (;;)
1895     {
1896         if (*m == wxT('*'))
1897         {
1898             ma = ++m;
1899             na = n;
1900             just = 1;
1901             acount = count;
1902         }
1903         else if (*m == wxT('?'))
1904         {
1905             m++;
1906             if (!*n++)
1907                 return false;
1908         }
1909         else
1910         {
1911             if (*m == wxT('\\'))
1912             {
1913                 m++;
1914                 /* Quoting "nothing" is a bad thing */
1915                 if (!*m)
1916                     return false;
1917             }
1918             if (!*m)
1919             {
1920                 /*
1921                 * If we are out of both strings or we just
1922                 * saw a wildcard, then we can say we have a
1923                 * match
1924                 */
1925                 if (!*n)
1926                     return true;
1927                 if (just)
1928                     return true;
1929                 just = 0;
1930                 goto not_matched;
1931             }
1932             /*
1933             * We could check for *n == NULL at this point, but
1934             * since it's more common to have a character there,
1935             * check to see if they match first (m and n) and
1936             * then if they don't match, THEN we can check for
1937             * the NULL of n
1938             */
1939             just = 0;
1940             if (*m == *n)
1941             {
1942                 m++;
1943                 count++;
1944                 n++;
1945             }
1946             else
1947             {
1948
1949                 not_matched:
1950
1951                 /*
1952                 * If there are no more characters in the
1953                 * string, but we still need to find another
1954                 * character (*m != NULL), then it will be
1955                 * impossible to match it
1956                 */
1957                 if (!*n)
1958                     return false;
1959
1960                 if (ma)
1961                 {
1962                     m = ma;
1963                     n = ++na;
1964                     count = acount;
1965                 }
1966                 else
1967                     return false;
1968             }
1969         }
1970     }
1971 }
1972
1973 // Return the type of an open file
1974 //
1975 // Some file types on some platforms seem seekable but in fact are not.
1976 // The main use of this function is to allow such cases to be detected
1977 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1978 //
1979 // This is important for the archive streams, which benefit greatly from
1980 // being able to seek on a stream, but which will produce corrupt archives
1981 // if they unknowingly seek on a non-seekable stream.
1982 //
1983 // wxFILE_KIND_DISK is a good catch all return value, since other values
1984 // disable features of the archive streams. Some other value must be returned
1985 // for a file type that appears seekable but isn't.
1986 //
1987 // Known examples:
1988 //   *  Pipes on Windows
1989 //   *  Files on VMS with a record format other than StreamLF
1990 //
1991 wxFileKind wxGetFileKind(int fd)
1992 {
1993 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1994     switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1995     {
1996         case FILE_TYPE_CHAR:
1997             return wxFILE_KIND_TERMINAL;
1998         case FILE_TYPE_DISK:
1999             return wxFILE_KIND_DISK;
2000         case FILE_TYPE_PIPE:
2001             return wxFILE_KIND_PIPE;
2002     }
2003
2004     return wxFILE_KIND_UNKNOWN;
2005
2006 #elif defined(__UNIX__)
2007     if (isatty(fd))
2008         return wxFILE_KIND_TERMINAL;
2009
2010     struct stat st;
2011     fstat(fd, &st);
2012
2013     if (S_ISFIFO(st.st_mode))
2014         return wxFILE_KIND_PIPE;
2015     if (!S_ISREG(st.st_mode))
2016         return wxFILE_KIND_UNKNOWN;
2017
2018     #if defined(__VMS__)
2019         if (st.st_fab_rfm != FAB$C_STMLF)
2020             return wxFILE_KIND_UNKNOWN;
2021     #endif
2022
2023     return wxFILE_KIND_DISK;
2024
2025 #else
2026     #define wxFILEKIND_STUB
2027     (void)fd;
2028     return wxFILE_KIND_DISK;
2029 #endif
2030 }
2031
2032 wxFileKind wxGetFileKind(FILE *fp)
2033 {
2034     // Note: The watcom rtl dll doesn't have fileno (the static lib does).
2035     //       Should be fixed in version 1.4.
2036 #if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4)
2037     (void)fp;
2038     return wxFILE_KIND_DISK;
2039 #else
2040     return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN;
2041 #endif
2042 }
2043
2044 #ifdef __VISUALC__
2045     #pragma warning(default:4706)   // assignment within conditional expression
2046 #endif // VC++