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 // translate the filenames before passing them to OS functions
 119 #define OS_FILENAME(s) (s.fn_str())
 120
 121 // ============================================================================
 122 // implementation
 123 // ============================================================================
 124
 125 // ----------------------------------------------------------------------------
 126 // wrappers around standard POSIX functions
 127 // ----------------------------------------------------------------------------
 128
 129 #ifdef wxNEED_WX_UNISTD_H
 130
 131 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 132 {
 133     return stat( wxConvFile.cWX2MB( file_name ), buf );
 134 }
 135
 136 WXDLLEXPORT int wxLstat( const wxChar *file_name, wxStructStat *buf )
 137 {
 138     return lstat( wxConvFile.cWX2MB( file_name ), buf );
 139 }
 140
 141 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 142 {
 143     return access( wxConvFile.cWX2MB( pathname ), mode );
 144 }
 145
 146 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 147 {
 148     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 149 }
 150
 151 #endif // wxNEED_WX_UNISTD_H
 152
 153 // ----------------------------------------------------------------------------
 154 // wxPathList
 155 // ----------------------------------------------------------------------------
 156
 157 void wxPathList::Add(const wxString& path)
 158 {
 159     // add a path separator to force wxFileName to interpret it always as a directory
 160     // (i.e. if we are called with '/home/user' we want to consider it a folder and
 161     // not, as wxFileName would consider, a filename).
 162     wxFileName fn(path + wxFileName::GetPathSeparator());
 163
 164     // add only normalized relative/absolute paths
 165     fn.Normalize(wxPATH_NORM_DOTS|wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS);
 166
 167     wxString toadd = fn.GetPath();
 168     if (Index(toadd) == wxNOT_FOUND)
 169         wxArrayString::Add(toadd);      // do not add duplicates
 170 }
 171
 172 void wxPathList::Add(const wxArrayString &arr)
 173 {
 174     for (size_t j=0; j < arr.GetCount(); j++)
 175         Add(arr[j]);
 176 }
 177
 178 // Add paths e.g. from the PATH environment variable
 179 void wxPathList::AddEnvList (const wxString& WXUNUSED_IN_WINCE(envVariable))
 180 {
 181     // No environment variables on WinCE
 182 #ifndef __WXWINCE__
 183
 184     // The space has been removed from the tokenizers, otherwise a
 185     // path such as "C:\Program Files" would be split into 2 paths:
 186     // "C:\Program" and "Files"; this is true for both Windows and Unix.
 187
 188     static const wxChar PATH_TOKS[] =
 189 #if defined(__WINDOWS__) || defined(__OS2__)
 190         wxT(";"); // Don't separate with colon in DOS (used for drive)
 191 #else
 192         wxT(":;");
 193 #endif
 194
 195     wxString val;
 196     if ( wxGetEnv(envVariable, &val) )
 197     {
 198         // split into an array of string the value of the env var
 199         wxArrayString arr = wxStringTokenize(val, PATH_TOKS);
 200         WX_APPEND_ARRAY(*this, arr);
 201     }
 202 #endif // !__WXWINCE__
 203 }
 204
 205 // Given a full filename (with path), ensure that that file can
 206 // be accessed again USING FILENAME ONLY by adding the path
 207 // to the list if not already there.
 208 void wxPathList::EnsureFileAccessible (const wxString& path)
 209 {
 210     wxString path_only(wxPathOnly(path));
 211     if ( !path_only.empty() )
 212     {
 213         if ( Index(path_only) == wxNOT_FOUND )
 214             Add(path_only);
 215     }
 216 }
 217
 218 // deprecated !
 219 bool wxPathList::Member (const wxString& path) const
 220 {
 221     return Index(path) != wxNOT_FOUND;
 222 }
 223
 224 wxString wxPathList::FindValidPath (const wxString& file) const
 225 {
 226     // normalize the given string as it could be a path + a filename
 227     // and not only a filename
 228     wxFileName fn(file);
 229     wxString strend;
 230
 231     // NB: normalize without making absolute !
 232     fn.Normalize(wxPATH_NORM_DOTS|wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS);
 233
 234     wxASSERT_MSG(!fn.IsDir(), wxT("Cannot search for directories; only for files"));
 235     if (fn.IsAbsolute())
 236         strend = fn.GetFullName();      // search for the file name and ignore the path part
 237     else
 238         strend = fn.GetFullPath();
 239
 240     for (size_t i=0; i<GetCount(); i++)
 241     {
 242         wxString strstart = Item(i);
 243         if (!strstart.IsEmpty() && strstart.Last() != wxFileName::GetPathSeparator())
 244             strstart += wxFileName::GetPathSeparator();
 245
 246         if (wxFileExists(strstart + strend))
 247             return strstart + strend;        // Found!
 248     }
 249
 250     return wxEmptyString;                    // Not found
 251 }
 252
 253 wxString wxPathList::FindAbsoluteValidPath (const wxString& file) const
 254 {
 255     wxString f = FindValidPath(file);
 256     if ( f.empty() || wxIsAbsolutePath(f) )
 257         return f;
 258
 259     wxString buf = ::wxGetCwd();
 260
 261     if ( !wxEndsWithPathSeparator(buf) )
 262     {
 263         buf += wxFILE_SEP_PATH;
 264     }
 265     buf += f;
 266
 267     return buf;
 268 }
 269
 270 // ----------------------------------------------------------------------------
 271 // miscellaneous global functions (TOFIX!)
 272 // ----------------------------------------------------------------------------
 273
 274 static inline wxChar* MYcopystring(const wxString& s)
 275 {
 276     wxChar* copy = new wxChar[s.length() + 1];
 277     return wxStrcpy(copy, s.c_str());
 278 }
 279
 280 static inline wxChar* MYcopystring(const wxChar* s)
 281 {
 282     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 283     return wxStrcpy(copy, s);
 284 }
 285
 286
 287 bool
 288 wxFileExists (const wxString& filename)
 289 {
 290 #if defined(__WXPALMOS__)
 291     return false;
 292 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
 293     // we must use GetFileAttributes() instead of the ANSI C functions because
 294     // it can cope with network (UNC) paths unlike them
 295     DWORD ret = ::GetFileAttributes(filename);
 296
 297     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 298 #else // !__WIN32__
 299     #ifndef S_ISREG
 300         #define S_ISREG(mode) ((mode) & S_IFREG)
 301     #endif
 302     wxStructStat st;
 303 #ifndef wxNEED_WX_UNISTD_H
 304     return (wxStat( filename.fn_str() , &st) == 0 && S_ISREG(st.st_mode))
 305 #ifdef __OS2__
 306       || (errno == EACCES) // if access is denied something with that name
 307                             // exists and is opened in exclusive mode.
 308 #endif
 309       ;
 310 #else
 311     return wxStat( filename , &st) == 0 && S_ISREG(st.st_mode);
 312 #endif
 313 #endif // __WIN32__/!__WIN32__
 314 }
 315
 316 bool
 317 wxIsAbsolutePath (const wxString& filename)
 318 {
 319     if (!filename.empty())
 320     {
 321 #if defined(__WXMAC__) && !defined(__DARWIN__)
 322         // Classic or Carbon CodeWarrior like
 323         // Carbon with Apple DevTools is Unix like
 324
 325         // This seems wrong to me, but there is no fix. since
 326         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 327         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 328         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 329             return true ;
 330 #else
 331         // Unix like or Windows
 332         if (filename[0] == wxT('/'))
 333             return true;
 334 #endif
 335 #ifdef __VMS__
 336         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 337             return true;
 338 #endif
 339 #if defined(__WINDOWS__) || defined(__OS2__)
 340         // MSDOS like
 341         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 342             return true;
 343 #endif
 344     }
 345     return false ;
 346 }
 347
 348 /*
 349  * Strip off any extension (dot something) from end of file,
 350  * IF one exists. Inserts zero into buffer.
 351  *
 352  */
 353
 354 void wxStripExtension(wxChar *buffer)
 355 {
 356     int len = wxStrlen(buffer);
 357     int i = len-1;
 358     while (i > 0)
 359     {
 360         if (buffer[i] == wxT('.'))
 361         {
 362             buffer[i] = 0;
 363             break;
 364         }
 365         i --;
 366     }
 367 }
 368
 369 void wxStripExtension(wxString& buffer)
 370 {
 371     //RN:  Be careful about the handling the case where
 372     //buffer.length() == 0
 373     for(size_t i = buffer.length() - 1; i != wxString::npos; --i)
 374     {
 375         if (buffer.GetChar(i) == wxT('.'))
 376         {
 377           buffer = buffer.Left(i);
 378           break;
 379         }
 380     }
 381 }
 382
 383 // Destructive removal of /./ and /../ stuff
 384 wxChar *wxRealPath (wxChar *path)
 385 {
 386 #ifdef __WXMSW__
 387   static const wxChar SEP = wxT('\\');
 388   wxUnix2DosFilename(path);
 389 #else
 390   static const wxChar SEP = wxT('/');
 391 #endif
 392   if (path[0] && path[1]) {
 393     /* MATTHEW: special case "/./x" */
 394     wxChar *p;
 395     if (path[2] == SEP && path[1] == wxT('.'))
 396       p = &path[0];
 397     else
 398       p = &path[2];
 399     for (; *p; p++)
 400       {
 401         if (*p == SEP)
 402           {
 403             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 404               {
 405                 wxChar *q;
 406                 for (q = p - 1; q >= path && *q != SEP; q--)
 407                 {
 408                     // Empty
 409                 }
 410
 411                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 412                     && (q - 1 <= path || q[-1] != SEP))
 413                   {
 414                     wxStrcpy (q, p + 3);
 415                     if (path[0] == wxT('\0'))
 416                       {
 417                         path[0] = SEP;
 418                         path[1] = wxT('\0');
 419                       }
 420 #if defined(__WXMSW__) || defined(__OS2__)
 421                     /* Check that path[2] is NULL! */
 422                     else if (path[1] == wxT(':') && !path[2])
 423                       {
 424                         path[2] = SEP;
 425                         path[3] = wxT('\0');
 426                       }
 427 #endif
 428                     p = q - 1;
 429                   }
 430               }
 431             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 432               wxStrcpy (p, p + 2);
 433           }
 434       }
 435   }
 436   return path;
 437 }
 438
 439 wxString wxRealPath(const wxString& path)
 440 {
 441     wxChar *buf1=MYcopystring(path);
 442     wxChar *buf2=wxRealPath(buf1);
 443     wxString buf(buf2);
 444     delete [] buf1;
 445     return buf;
 446 }
 447
 448
 449 // Must be destroyed
 450 wxChar *wxCopyAbsolutePath(const wxString& filename)
 451 {
 452     if (filename.empty())
 453         return (wxChar *) NULL;
 454
 455     if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename)))
 456     {
 457         wxString buf = ::wxGetCwd();
 458         wxChar ch = buf.Last();
 459 #ifdef __WXMSW__
 460         if (ch != wxT('\\') && ch != wxT('/'))
 461             buf << wxT("\\");
 462 #else
 463         if (ch != wxT('/'))
 464             buf << wxT("/");
 465 #endif
 466         buf << wxFileFunctionsBuffer;
 467         buf = wxRealPath( buf );
 468         return MYcopystring( buf );
 469     }
 470     return MYcopystring( wxFileFunctionsBuffer );
 471 }
 472
 473 /*-
 474  Handles:
 475    ~/ => home dir
 476    ~user/ => user's home dir
 477    If the environment variable a = "foo" and b = "bar" then:
 478    Unix:
 479         $a        =>        foo
 480         $a$b        =>        foobar
 481         $a.c        =>        foo.c
 482         xxx$a        =>        xxxfoo
 483         ${a}!        =>        foo!
 484         $(b)!        =>        bar!
 485         \$a        =>        \$a
 486    MSDOS:
 487         $a        ==>        $a
 488         $(a)        ==>        foo
 489         $(a)$b        ==>        foo$b
 490         $(a)$(b)==>        foobar
 491         test.$$        ==>        test.$$
 492  */
 493
 494 /* input name in name, pathname output to buf. */
 495
 496 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 497 {
 498     register wxChar *d, *s, *nm;
 499     wxChar          lnm[_MAXPATHLEN];
 500     int             q;
 501
 502     // Some compilers don't like this line.
 503 //    const wxChar    trimchars[] = wxT("\n \t");
 504
 505     wxChar      trimchars[4];
 506     trimchars[0] = wxT('\n');
 507     trimchars[1] = wxT(' ');
 508     trimchars[2] = wxT('\t');
 509     trimchars[3] = 0;
 510
 511 #ifdef __WXMSW__
 512     const wxChar     SEP = wxT('\\');
 513 #else
 514     const wxChar     SEP = wxT('/');
 515 #endif
 516     buf[0] = wxT('\0');
 517     if (name == NULL || *name == wxT('\0'))
 518         return buf;
 519     nm = MYcopystring(name); // Make a scratch copy
 520     wxChar *nm_tmp = nm;
 521
 522     /* Skip leading whitespace and cr */
 523     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 524         nm++;
 525     /* And strip off trailing whitespace and cr */
 526     s = nm + (q = wxStrlen(nm)) - 1;
 527     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 528         *s = wxT('\0');
 529
 530     s = nm;
 531     d = lnm;
 532 #ifdef __WXMSW__
 533     q = FALSE;
 534 #else
 535     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 536 #endif
 537
 538     /* Expand inline environment variables */
 539 #ifdef __VISAGECPP__
 540     while (*d)
 541     {
 542       *d++ = *s;
 543       if(*s == wxT('\\'))
 544       {
 545         *(d - 1) = *++s;
 546         if (*d)
 547         {
 548           s++;
 549           continue;
 550         }
 551         else
 552            break;
 553       }
 554       else
 555 #else
 556     while ((*d++ = *s) != 0) {
 557 #  ifndef __WXMSW__
 558         if (*s == wxT('\\')) {
 559             if ((*(d - 1) = *++s)!=0) {
 560                 s++;
 561                 continue;
 562             } else
 563                 break;
 564         } else
 565 #  endif
 566 #endif
 567             // No env variables on WinCE
 568 #ifndef __WXWINCE__
 569 #ifdef __WXMSW__
 570         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 571 #else
 572         if (*s++ == wxT('$'))
 573 #endif
 574         {
 575             register wxChar  *start = d;
 576             register int     braces = (*s == wxT('{') || *s == wxT('('));
 577             register wxChar  *value;
 578             while ((*d++ = *s) != 0)
 579                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 580                     break;
 581                 else
 582                     s++;
 583             *--d = 0;
 584             value = wxGetenv(braces ? start + 1 : start);
 585             if (value) {
 586                 for ((d = start - 1); (*d++ = *value++) != 0;)
 587                 {
 588                     // Empty
 589                 }
 590
 591                 d--;
 592                 if (braces && *s)
 593                     s++;
 594             }
 595         }
 596 #endif
 597         // __WXWINCE__
 598     }
 599
 600     /* Expand ~ and ~user */
 601     nm = lnm;
 602     if (nm[0] == wxT('~') && !q)
 603     {
 604         /* prefix ~ */
 605         if (nm[1] == SEP || nm[1] == 0)
 606         {        /* ~/filename */
 607         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 608             if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
 609                 if (*++nm)
 610                     nm++;
 611             }
 612         } else
 613         {                /* ~user/filename */
 614             register wxChar  *nnm;
 615             register wxChar  *home;
 616             for (s = nm; *s && *s != SEP; s++)
 617             {
 618                 // Empty
 619             }
 620             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 621             was_sep = (*s == SEP);
 622             nnm = *s ? s + 1 : s;
 623             *s = 0;
 624         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 625             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL)
 626             {
 627                 if (was_sep) /* replace only if it was there: */
 628                     *s = SEP;
 629                 s = NULL;
 630             }
 631             else
 632             {
 633                 nm = nnm;
 634                 s = home;
 635             }
 636         }
 637     }
 638
 639     d = buf;
 640     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 641         /* Copy home dir */
 642         while (wxT('\0') != (*d++ = *s++))
 643           /* loop */;
 644         // Handle root home
 645         if (d - 1 > buf && *(d - 2) != SEP)
 646           *(d - 1) = SEP;
 647     }
 648     s = nm;
 649     while ((*d++ = *s++) != 0)
 650     {
 651         // Empty
 652     }
 653     delete[] nm_tmp; // clean up alloc
 654     /* Now clean up the buffer */
 655     return wxRealPath(buf);
 656 }
 657
 658 /* Contract Paths to be build upon an environment variable
 659    component:
 660
 661    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 662
 663    The call wxExpandPath can convert these back!
 664  */
 665 wxChar *
 666 wxContractPath (const wxString& filename,
 667                 const wxString& WXUNUSED_IN_WINCE(envname),
 668                 const wxString& user)
 669 {
 670   static wxChar dest[_MAXPATHLEN];
 671
 672   if (filename.empty())
 673     return (wxChar *) NULL;
 674
 675   wxStrcpy (dest, WXSTRINGCAST filename);
 676 #ifdef __WXMSW__
 677   wxUnix2DosFilename(dest);
 678 #endif
 679
 680   // Handle environment
 681   const wxChar *val;
 682 #ifndef __WXWINCE__
 683   wxChar *tcp;
 684   if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 685      (tcp = wxStrstr (dest, val)) != NULL)
 686     {
 687         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 688         *tcp++ = wxT('$');
 689         *tcp++ = wxT('{');
 690         wxStrcpy (tcp, WXSTRINGCAST envname);
 691         wxStrcat (tcp, wxT("}"));
 692         wxStrcat (tcp, wxFileFunctionsBuffer);
 693     }
 694 #endif
 695
 696   // Handle User's home (ignore root homes!)
 697   val = wxGetUserHome (user);
 698   if (!val)
 699     return dest;
 700
 701   const size_t len = wxStrlen(val);
 702   if (len <= 2)
 703     return dest;
 704
 705   if (wxStrncmp(dest, val, len) == 0)
 706   {
 707     wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 708     if (!user.empty())
 709            wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 710     wxStrcat(wxFileFunctionsBuffer, dest + len);
 711     wxStrcpy (dest, wxFileFunctionsBuffer);
 712   }
 713
 714   return dest;
 715 }
 716
 717 // Return just the filename, not the path (basename)
 718 wxChar *wxFileNameFromPath (wxChar *path)
 719 {
 720     wxString p = path;
 721     wxString n = wxFileNameFromPath(p);
 722
 723     return path + p.length() - n.length();
 724 }
 725
 726 wxString wxFileNameFromPath (const wxString& path)
 727 {
 728     wxString name, ext;
 729     wxFileName::SplitPath(path, NULL, &name, &ext);
 730
 731     wxString fullname = name;
 732     if ( !ext.empty() )
 733     {
 734         fullname << wxFILE_SEP_EXT << ext;
 735     }
 736
 737     return fullname;
 738 }
 739
 740 // Return just the directory, or NULL if no directory
 741 wxChar *
 742 wxPathOnly (wxChar *path)
 743 {
 744     if (path && *path)
 745     {
 746         static wxChar buf[_MAXPATHLEN];
 747
 748         // Local copy
 749         wxStrcpy (buf, path);
 750
 751         int l = wxStrlen(path);
 752         int i = l - 1;
 753
 754         // Search backward for a backward or forward slash
 755         while (i > -1)
 756         {
 757 #if defined(__WXMAC__) && !defined(__DARWIN__)
 758             // Classic or Carbon CodeWarrior like
 759             // Carbon with Apple DevTools is Unix like
 760             if (path[i] == wxT(':') )
 761             {
 762                 buf[i] = 0;
 763                 return buf;
 764             }
 765 #else
 766             // Unix like or Windows
 767             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 768             {
 769                 buf[i] = 0;
 770                 return buf;
 771             }
 772 #endif
 773 #ifdef __VMS__
 774             if (path[i] == wxT(']'))
 775             {
 776                 buf[i+1] = 0;
 777                 return buf;
 778             }
 779 #endif
 780             i --;
 781         }
 782
 783 #if defined(__WXMSW__) || defined(__OS2__)
 784         // Try Drive specifier
 785         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 786         {
 787             // A:junk --> A:. (since A:.\junk Not A:\junk)
 788             buf[2] = wxT('.');
 789             buf[3] = wxT('\0');
 790             return buf;
 791         }
 792 #endif
 793     }
 794     return (wxChar *) NULL;
 795 }
 796
 797 // Return just the directory, or NULL if no directory
 798 wxString wxPathOnly (const wxString& path)
 799 {
 800     if (!path.empty())
 801     {
 802         wxChar buf[_MAXPATHLEN];
 803
 804         // Local copy
 805         wxStrcpy (buf, WXSTRINGCAST path);
 806
 807         int l = path.length();
 808         int i = l - 1;
 809
 810         // Search backward for a backward or forward slash
 811         while (i > -1)
 812         {
 813 #if defined(__WXMAC__) && !defined(__DARWIN__)
 814             // Classic or Carbon CodeWarrior like
 815             // Carbon with Apple DevTools is Unix like
 816             if (path[i] == wxT(':') )
 817             {
 818                 buf[i] = 0;
 819                 return wxString(buf);
 820             }
 821 #else
 822             // Unix like or Windows
 823             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 824             {
 825                 // Don't return an empty string
 826                 if (i == 0)
 827                     i ++;
 828                 buf[i] = 0;
 829                 return wxString(buf);
 830             }
 831 #endif
 832 #ifdef __VMS__
 833             if (path[i] == wxT(']'))
 834             {
 835                 buf[i+1] = 0;
 836                 return wxString(buf);
 837             }
 838 #endif
 839             i --;
 840         }
 841
 842 #if defined(__WXMSW__) || defined(__OS2__)
 843         // Try Drive specifier
 844         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 845         {
 846             // A:junk --> A:. (since A:.\junk Not A:\junk)
 847             buf[2] = wxT('.');
 848             buf[3] = wxT('\0');
 849             return wxString(buf);
 850         }
 851 #endif
 852     }
 853     return wxEmptyString;
 854 }
 855
 856 // Utility for converting delimiters in DOS filenames to UNIX style
 857 // and back again - or we get nasty problems with delimiters.
 858 // Also, convert to lower case, since case is significant in UNIX.
 859
 860 #if defined(__WXMAC__)
 861
 862 #if TARGET_API_MAC_OSX
 863 #define kDefaultPathStyle kCFURLPOSIXPathStyle
 864 #else
 865 #define kDefaultPathStyle kCFURLHFSPathStyle
 866 #endif
 867
 868 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
 869 {
 870     CFURLRef fullURLRef;
 871     fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
 872     if ( additionalPathComponent )
 873     {
 874         CFURLRef parentURLRef = fullURLRef ;
 875         fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
 876             additionalPathComponent,false);
 877         CFRelease( parentURLRef ) ;
 878     }
 879     CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
 880     CFRelease( fullURLRef ) ;
 881     CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfString);
 882     CFRelease( cfString );
 883     CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
 884     return wxMacCFStringHolder(cfMutableString).AsString();
 885 }
 886
 887 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
 888 {
 889     OSStatus err = noErr ;
 890     CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, wxMacCFStringHolder(path));
 891     CFStringNormalize(cfMutableString,kCFStringNormalizationFormD);
 892     CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfMutableString , kDefaultPathStyle, false);
 893     CFRelease( cfMutableString );
 894     if ( NULL != url )
 895     {
 896         if ( CFURLGetFSRef(url, fsRef) == false )
 897             err = fnfErr ;
 898         CFRelease( url ) ;
 899     }
 900     else
 901     {
 902         err = fnfErr ;
 903     }
 904     return err ;
 905 }
 906
 907 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
 908 {
 909     CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
 910                                                       uniname->unicode,
 911                                                       uniname->length );
 912     CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfname);
 913     CFRelease( cfname );
 914     CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
 915     return wxMacCFStringHolder(cfMutableString).AsString() ;
 916 }
 917
 918 #ifndef __LP64__
 919
 920 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 921 {
 922     FSRef fsRef ;
 923     if ( FSpMakeFSRef( spec , &fsRef) == noErr )
 924     {
 925         return wxMacFSRefToPath( &fsRef ) ;
 926     }
 927     return wxEmptyString ;
 928 }
 929
 930 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
 931 {
 932     OSStatus err = noErr ;
 933     FSRef fsRef ;
 934     wxMacPathToFSRef( path , &fsRef ) ;
 935     err = FSRefMakeFSSpec( &fsRef , spec ) ;
 936 }
 937 #endif
 938
 939 #endif // __WXMAC__
 940
 941 void
 942 wxDos2UnixFilename (wxChar *s)
 943 {
 944   if (s)
 945     while (*s)
 946       {
 947         if (*s == _T('\\'))
 948           *s = _T('/');
 949 #ifdef __WXMSW__
 950         else
 951           *s = (wxChar)wxTolower (*s);        // Case INDEPENDENT
 952 #endif
 953         s++;
 954       }
 955 }
 956
 957 void
 958 #if defined(__WXMSW__) || defined(__OS2__)
 959 wxUnix2DosFilename (wxChar *s)
 960 #else
 961 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 962 #endif
 963 {
 964 // Yes, I really mean this to happen under DOS only! JACS
 965 #if defined(__WXMSW__) || defined(__OS2__)
 966   if (s)
 967     while (*s)
 968       {
 969         if (*s == wxT('/'))
 970           *s = wxT('\\');
 971         s++;
 972       }
 973 #endif
 974 }
 975
 976 // Concatenate two files to form third
 977 bool
 978 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 979 {
 980 #if wxUSE_FILE
 981
 982     wxFile in1(file1), in2(file2);
 983     wxTempFile out(file3);
 984
 985     if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
 986         return false;
 987
 988     ssize_t ofs;
 989     unsigned char buf[1024];
 990
 991     for( int i=0; i<2; i++)
 992     {
 993         wxFile *in = i==0 ? &in1 : &in2;
 994         do{
 995             if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
 996             if ( ofs > 0 )
 997                 if ( !out.Write(buf,ofs) )
 998                     return false;
 999         } while ( ofs == (ssize_t)WXSIZEOF(buf) );
1000     }
1001
1002     return out.Commit();
1003
1004 #else
1005
1006     wxUnusedVar(file1);
1007     wxUnusedVar(file2);
1008     wxUnusedVar(file3);
1009     return false;
1010
1011 #endif
1012 }
1013
1014 // Copy files
1015 bool
1016 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1017 {
1018 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1019     // CopyFile() copies file attributes and modification time too, so use it
1020     // instead of our code if available
1021     //
1022     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1023     if ( !::CopyFile(file1, file2, !overwrite) )
1024     {
1025         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1026                       file1.c_str(), file2.c_str());
1027
1028         return false;
1029     }
1030 #elif defined(__OS2__)
1031     if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1032         return false;
1033 #elif defined(__PALMOS__)
1034     // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1035     return false;
1036 #elif wxUSE_FILE // !Win32
1037
1038     wxStructStat fbuf;
1039     // get permissions of file1
1040     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1041     {
1042         // the file probably doesn't exist or we haven't the rights to read
1043         // from it anyhow
1044         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1045                       file1.c_str());
1046         return false;
1047     }
1048
1049     // open file1 for reading
1050     wxFile fileIn(file1, wxFile::read);
1051     if ( !fileIn.IsOpened() )
1052         return false;
1053
1054     // remove file2, if it exists. This is needed for creating
1055     // file2 with the correct permissions in the next step
1056     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1057     {
1058         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1059                       file2.c_str());
1060         return false;
1061     }
1062
1063     // reset the umask as we want to create the file with exactly the same
1064     // permissions as the original one
1065     wxCHANGE_UMASK(0);
1066
1067     // create file2 with the same permissions than file1 and open it for
1068     // writing
1069
1070     wxFile fileOut;
1071     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1072         return false;
1073
1074     // copy contents of file1 to file2
1075     char buf[4096];
1076     size_t count;
1077     for ( ;; )
1078     {
1079         count = fileIn.Read(buf, WXSIZEOF(buf));
1080         if ( fileIn.Error() )
1081             return false;
1082
1083         // end of file?
1084         if ( !count )
1085             break;
1086
1087         if ( fileOut.Write(buf, count) < count )
1088             return false;
1089     }
1090
1091     // we can expect fileIn to be closed successfully, but we should ensure
1092     // that fileOut was closed as some write errors (disk full) might not be
1093     // detected before doing this
1094     if ( !fileIn.Close() || !fileOut.Close() )
1095         return false;
1096
1097 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1098     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1099     // however
1100     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1101     {
1102         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1103                       file2.c_str());
1104         return false;
1105     }
1106 #endif // OS/2 || Mac
1107
1108 #else // !Win32 && ! wxUSE_FILE
1109
1110     // impossible to simulate with wxWidgets API
1111     wxUnusedVar(file1);
1112     wxUnusedVar(file2);
1113     wxUnusedVar(overwrite);
1114     return false;
1115
1116 #endif // __WXMSW__ && __WIN32__
1117
1118     return true;
1119 }
1120
1121 bool
1122 wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite)
1123 {
1124     if ( !overwrite && wxFileExists(file2) )
1125     {
1126         wxLogSysError
1127         (
1128             _("Failed to rename the file '%s' to '%s' because the destination file already exists."),
1129             file1.c_str(), file2.c_str()
1130         );
1131
1132         return false;
1133     }
1134
1135 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1136     // Normal system call
1137   if ( wxRename (file1, file2) == 0 )
1138     return true;
1139 #endif
1140
1141   // Try to copy
1142   if (wxCopyFile(file1, file2, overwrite)) {
1143     wxRemoveFile(file1);
1144     return true;
1145   }
1146   // Give up
1147   return false;
1148 }
1149
1150 bool wxRemoveFile(const wxString& file)
1151 {
1152 #if defined(__VISUALC__) \
1153  || defined(__BORLANDC__) \
1154  || defined(__WATCOMC__) \
1155  || defined(__DMC__) \
1156  || defined(__GNUWIN32__) \
1157  || (defined(__MWERKS__) && defined(__MSL__))
1158     int res = wxRemove(file);
1159 #elif defined(__WXMAC__)
1160     int res = unlink(wxFNCONV(file));
1161 #elif defined(__WXPALMOS__)
1162     int res = 1;
1163     // TODO with VFSFileDelete()
1164 #else
1165     int res = unlink(OS_FILENAME(file));
1166 #endif
1167
1168     return res == 0;
1169 }
1170
1171 bool wxMkdir(const wxString& dir, int perm)
1172 {
1173 #if defined(__WXPALMOS__)
1174     return false;
1175 #elif defined(__WXMAC__) && !defined(__UNIX__)
1176     return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1177 #else // !Mac
1178     const wxChar *dirname = dir.c_str();
1179
1180     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1181     // for the GNU compiler
1182 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1183   #if defined(MSVCRT)
1184     wxUnusedVar(perm);
1185     if ( mkdir(wxFNCONV(dirname)) != 0 )
1186   #else
1187     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1188   #endif
1189 #elif defined(__OS2__)
1190     wxUnusedVar(perm);
1191     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1192 #elif defined(__DOS__)
1193   #if defined(__WATCOMC__)
1194     (void)perm;
1195     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1196   #elif defined(__DJGPP__)
1197     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1198   #else
1199     #error "Unsupported DOS compiler!"
1200   #endif
1201 #else  // !MSW, !DOS and !OS/2 VAC++
1202     wxUnusedVar(perm);
1203 #ifdef __WXWINCE__
1204     if ( !CreateDirectory(dirname, NULL) )
1205 #else
1206     if ( wxMkDir(dir.fn_str()) != 0 )
1207 #endif
1208 #endif // !MSW/MSW
1209     {
1210         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1211
1212         return false;
1213     }
1214
1215     return true;
1216 #endif // Mac/!Mac
1217 }
1218
1219 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1220 {
1221 #if defined(__VMS__)
1222     return false; //to be changed since rmdir exists in VMS7.x
1223 #elif defined(__OS2__)
1224     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1225 #elif defined(__WXWINCE__)
1226     return (CreateDirectory(dir, NULL) != 0);
1227 #elif defined(__WXPALMOS__)
1228     // TODO with VFSFileRename()
1229     return false;
1230 #else
1231     return (wxRmDir(OS_FILENAME(dir)) == 0);
1232 #endif
1233 }
1234
1235 // does the path exists? (may have or not '/' or '\\' at the end)
1236 bool wxDirExists(const wxChar *pszPathName)
1237 {
1238     wxString strPath(pszPathName);
1239
1240 #if defined(__WINDOWS__) || defined(__OS2__)
1241     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1242     // so remove all trailing backslashes from the path - but don't do this for
1243     // the paths "d:\" (which are different from "d:") nor for just "\"
1244     while ( wxEndsWithPathSeparator(strPath) )
1245     {
1246         size_t len = strPath.length();
1247         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1248             break;
1249
1250         strPath.Truncate(len - 1);
1251     }
1252 #endif // __WINDOWS__
1253
1254 #ifdef __OS2__
1255     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1256     if (strPath.length() == 2 && strPath[1u] == _T(':'))
1257         strPath << _T('.');
1258 #endif
1259
1260 #if defined(__WXPALMOS__)
1261     return false;
1262 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1263     // stat() can't cope with network paths
1264     DWORD ret = ::GetFileAttributes(strPath);
1265
1266     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1267 #elif defined(__OS2__)
1268     FILESTATUS3 Info = {{0}};
1269     APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
1270                                    (void*) &Info, sizeof(FILESTATUS3));
1271
1272     return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
1273       (rc == ERROR_SHARING_VIOLATION);
1274     // If we got a sharing violation, there must be something with this name.
1275 #else // !__WIN32__
1276
1277     wxStructStat st;
1278 #ifndef __VISAGECPP__
1279     return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1280 #else
1281     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1282     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1283 #endif
1284
1285 #endif // __WIN32__/!__WIN32__
1286 }
1287
1288 // Get a temporary filename, opening and closing the file.
1289 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1290 {
1291     wxString filename;
1292     if ( !wxGetTempFileName(prefix, filename) )
1293         return NULL;
1294
1295     if ( buf )
1296         wxStrcpy(buf, filename);
1297     else
1298         buf = MYcopystring(filename);
1299
1300     return buf;
1301 }
1302
1303 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1304 {
1305 #if wxUSE_FILE
1306     buf = wxFileName::CreateTempFileName(prefix);
1307
1308     return !buf.empty();
1309 #else // !wxUSE_FILE
1310     wxUnusedVar(prefix);
1311     wxUnusedVar(buf);
1312
1313     return false;
1314 #endif // wxUSE_FILE/!wxUSE_FILE
1315 }
1316
1317 // Get first file name matching given wild card.
1318
1319 static wxDir *gs_dir = NULL;
1320 static wxString gs_dirPath;
1321
1322 wxString wxFindFirstFile(const wxChar *spec, int flags)
1323 {
1324     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1325     if ( gs_dirPath.empty() )
1326         gs_dirPath = wxT(".");
1327     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1328         gs_dirPath << wxFILE_SEP_PATH;
1329
1330     if (gs_dir)
1331         delete gs_dir;
1332     gs_dir = new wxDir(gs_dirPath);
1333
1334     if ( !gs_dir->IsOpened() )
1335     {
1336         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1337         return wxEmptyString;
1338     }
1339
1340     int dirFlags;
1341     switch (flags)
1342     {
1343         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1344         case wxFILE: dirFlags = wxDIR_FILES; break;
1345         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1346     }
1347
1348     wxString result;
1349     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1350     if ( result.empty() )
1351     {
1352         wxDELETE(gs_dir);
1353         return result;
1354     }
1355
1356     return gs_dirPath + result;
1357 }
1358
1359 wxString wxFindNextFile()
1360 {
1361     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1362
1363     wxString result;
1364     gs_dir->GetNext(&result);
1365
1366     if ( result.empty() )
1367     {
1368         wxDELETE(gs_dir);
1369         return result;
1370     }
1371
1372     return gs_dirPath + result;
1373 }
1374
1375
1376 // Get current working directory.
1377 // If buf is NULL, allocates space using new, else copies into buf.
1378 // wxGetWorkingDirectory() is obsolete, use wxGetCwd()
1379 // wxDoGetCwd() is their common core to be moved
1380 // to wxGetCwd() once wxGetWorkingDirectory() will be removed.
1381 // Do not expose wxDoGetCwd in headers!
1382
1383 wxChar *wxDoGetCwd(wxChar *buf, int sz)
1384 {
1385 #if defined(__WXPALMOS__)
1386     // TODO
1387     if(buf && sz>0) buf[0] = _T('\0');
1388     return buf;
1389 #elif defined(__WXWINCE__)
1390     // TODO
1391     if(buf && sz>0) buf[0] = _T('\0');
1392     return buf;
1393 #else
1394     if ( !buf )
1395     {
1396         buf = new wxChar[sz + 1];
1397     }
1398
1399     bool ok wxDUMMY_INITIALIZE(false);
1400
1401     // for the compilers which have Unicode version of _getcwd(), call it
1402     // directly, for the others call the ANSI version and do the translation
1403 #if !wxUSE_UNICODE
1404     #define cbuf buf
1405 #else // wxUSE_UNICODE
1406     bool needsANSI = true;
1407
1408     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1409         char cbuf[_MAXPATHLEN];
1410     #endif
1411
1412     #ifdef HAVE_WGETCWD
1413         #if wxUSE_UNICODE_MSLU
1414             if ( wxGetOsVersion() != wxOS_WINDOWS_9X )
1415         #else
1416             char *cbuf = NULL; // never really used because needsANSI will always be false
1417         #endif
1418             {
1419                 ok = _wgetcwd(buf, sz) != NULL;
1420                 needsANSI = false;
1421             }
1422     #endif
1423
1424     if ( needsANSI )
1425 #endif // wxUSE_UNICODE
1426     {
1427     #if defined(_MSC_VER) || defined(__MINGW32__)
1428         ok = _getcwd(cbuf, sz) != NULL;
1429     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1430         char lbuf[1024] ;
1431         if ( getcwd( lbuf , sizeof( lbuf ) ) )
1432         {
1433             wxString res( lbuf , *wxConvCurrent ) ;
1434             wxStrcpy( buf , res ) ;
1435             ok = true;
1436         }
1437         else
1438             ok = false ;
1439     #elif defined(__OS2__)
1440         APIRET rc;
1441         ULONG ulDriveNum = 0;
1442         ULONG ulDriveMap = 0;
1443         rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1444         ok = rc == 0;
1445         if (ok)
1446         {
1447             sz -= 3;
1448             rc = ::DosQueryCurrentDir( 0 // current drive
1449                                       ,cbuf + 3
1450                                       ,(PULONG)&sz
1451                                      );
1452             cbuf[0] = char('A' + (ulDriveNum - 1));
1453             cbuf[1] = ':';
1454             cbuf[2] = '\\';
1455             ok = rc == 0;
1456         }
1457     #else // !Win32/VC++ !Mac !OS2
1458         ok = getcwd(cbuf, sz) != NULL;
1459     #endif // platform
1460
1461     #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1462         // finally convert the result to Unicode if needed
1463         wxConvFile.MB2WC(buf, cbuf, sz);
1464     #endif // wxUSE_UNICODE
1465     }
1466
1467     if ( !ok )
1468     {
1469         wxLogSysError(_("Failed to get the working directory"));
1470
1471         // VZ: the old code used to return "." on error which didn't make any
1472         //     sense at all to me - empty string is a better error indicator
1473         //     (NULL might be even better but I'm afraid this could lead to
1474         //     problems with the old code assuming the return is never NULL)
1475         buf[0] = _T('\0');
1476     }
1477     else // ok, but we might need to massage the path into the right format
1478     {
1479 #ifdef __DJGPP__
1480         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1481         //     with / deliminers. We don't like that.
1482         for (wxChar *ch = buf; *ch; ch++)
1483         {
1484             if (*ch == wxT('/'))
1485                 *ch = wxT('\\');
1486         }
1487 #endif // __DJGPP__
1488
1489 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1490 //      he needs Unix as opposed to Win32 pathnames
1491 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1492         // another example of DOS/Unix mix (Cygwin)
1493         wxString pathUnix = buf;
1494 #if wxUSE_UNICODE
1495         char bufA[_MAXPATHLEN];
1496         cygwin_conv_to_full_win32_path(pathUnix.mb_str(wxConvFile), bufA);
1497         wxConvFile.MB2WC(buf, bufA, sz);
1498 #else
1499         cygwin_conv_to_full_win32_path(pathUnix, buf);
1500 #endif // wxUSE_UNICODE
1501 #endif // __CYGWIN__
1502     }
1503
1504     return buf;
1505
1506 #if !wxUSE_UNICODE
1507     #undef cbuf
1508 #endif
1509
1510 #endif
1511     // __WXWINCE__
1512 }
1513
1514 #if WXWIN_COMPATIBILITY_2_6
1515 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1516 {
1517     return wxDoGetCwd(buf,sz);
1518 }
1519 #endif // WXWIN_COMPATIBILITY_2_6
1520
1521 wxString wxGetCwd()
1522 {
1523     wxString str;
1524     wxDoGetCwd(wxStringBuffer(str, _MAXPATHLEN), _MAXPATHLEN);
1525     return str;
1526 }
1527
1528 bool wxSetWorkingDirectory(const wxString& d)
1529 {
1530 #if defined(__OS2__)
1531     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1532 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1533     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1534 #elif defined(__WINDOWS__)
1535
1536 #ifdef __WIN32__
1537 #ifdef __WXWINCE__
1538     // No equivalent in WinCE
1539     wxUnusedVar(d);
1540     return false;
1541 #else
1542     return (bool)(SetCurrentDirectory(d) != 0);
1543 #endif
1544 #else
1545     // Must change drive, too.
1546     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1547     if (isDriveSpec)
1548     {
1549         wxChar firstChar = d[0];
1550
1551         // To upper case
1552         if (firstChar > 90)
1553             firstChar = firstChar - 32;
1554
1555         // To a drive number
1556         unsigned int driveNo = firstChar - 64;
1557         if (driveNo > 0)
1558         {
1559             unsigned int noDrives;
1560             _dos_setdrive(driveNo, &noDrives);
1561         }
1562     }
1563     bool success = (chdir(WXSTRINGCAST d) == 0);
1564
1565     return success;
1566 #endif
1567
1568 #endif
1569 }
1570
1571 // Get the OS directory if appropriate (such as the Windows directory).
1572 // On non-Windows platform, probably just return the empty string.
1573 wxString wxGetOSDirectory()
1574 {
1575 #ifdef __WXWINCE__
1576     return wxString(wxT("\\Windows"));
1577 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1578     wxChar buf[256];
1579     GetWindowsDirectory(buf, 256);
1580     return wxString(buf);
1581 #elif defined(__WXMAC__)
1582     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1583 #else
1584     return wxEmptyString;
1585 #endif
1586 }
1587
1588 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1589 {
1590     size_t len = wxStrlen(pszFileName);
1591
1592     return len && wxIsPathSeparator(pszFileName[len - 1]);
1593 }
1594
1595 // find a file in a list of directories, returns false if not found
1596 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1597 {
1598     // we assume that it's not empty
1599     wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1600                  _T("empty file name in wxFindFileInPath"));
1601
1602     // skip path separator in the beginning of the file name if present
1603     if ( wxIsPathSeparator(*pszFile) )
1604         pszFile++;
1605
1606     // copy the path (strtok will modify it)
1607     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1608     wxStrcpy(szPath, pszPath);
1609
1610     wxString strFile;
1611     wxChar *pc, *save_ptr;
1612     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1613           pc != NULL;
1614           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1615     {
1616         // search for the file in this directory
1617         strFile = pc;
1618         if ( !wxEndsWithPathSeparator(pc) )
1619             strFile += wxFILE_SEP_PATH;
1620         strFile += pszFile;
1621
1622         if ( wxFileExists(strFile) ) {
1623             *pStr = strFile;
1624             break;
1625         }
1626     }
1627
1628     // suppress warning about unused variable save_ptr when wxStrtok() is a
1629     // macro which throws away its third argument
1630     save_ptr = pc;
1631
1632     delete [] szPath;
1633
1634     return pc != NULL;  // if true => we breaked from the loop
1635 }
1636
1637 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1638                              wxString *pstrPath,
1639                              wxString *pstrName,
1640                              wxString *pstrExt)
1641 {
1642     // it can be empty, but it shouldn't be NULL
1643     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1644
1645     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1646 }
1647
1648 #if wxUSE_DATETIME
1649
1650 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1651 {
1652     wxDateTime mtime;
1653     if ( !wxFileName(filename).GetTimes(NULL, &mtime, NULL) )
1654         return (time_t)-1;
1655
1656     return mtime.GetTicks();
1657 }
1658
1659 #endif // wxUSE_DATETIME
1660
1661
1662 // Parses the filterStr, returning the number of filters.
1663 // Returns 0 if none or if there's a problem.
1664 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1665
1666 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr,
1667                                            wxArrayString& descriptions,
1668                                            wxArrayString& filters)
1669 {
1670     descriptions.Clear();
1671     filters.Clear();
1672
1673     wxString str(filterStr);
1674
1675     wxString description, filter;
1676     int pos = 0;
1677     while( pos != wxNOT_FOUND )
1678     {
1679         pos = str.Find(wxT('|'));
1680         if ( pos == wxNOT_FOUND )
1681         {
1682             // if there are no '|'s at all in the string just take the entire
1683             // string as filter and make description empty for later autocompletion
1684             if ( filters.IsEmpty() )
1685             {
1686                 descriptions.Add(wxEmptyString);
1687                 filters.Add(filterStr);
1688             }
1689             else
1690             {
1691                 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1692             }
1693
1694             break;
1695         }
1696
1697         description = str.Left(pos);
1698         str = str.Mid(pos + 1);
1699         pos = str.Find(wxT('|'));
1700         if ( pos == wxNOT_FOUND )
1701         {
1702             filter = str;
1703         }
1704         else
1705         {
1706             filter = str.Left(pos);
1707             str = str.Mid(pos + 1);
1708         }
1709
1710         descriptions.Add(description);
1711         filters.Add(filter);
1712     }
1713
1714 #if defined(__WXMOTIF__)
1715     // split it so there is one wildcard per entry
1716     for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1717     {
1718         pos = filters[i].Find(wxT(';'));
1719         if (pos != wxNOT_FOUND)
1720         {
1721             // first split only filters
1722             descriptions.Insert(descriptions[i],i+1);
1723             filters.Insert(filters[i].Mid(pos+1),i+1);
1724             filters[i]=filters[i].Left(pos);
1725
1726             // autoreplace new filter in description with pattern:
1727             //     C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1728             // cause split into:
1729             //     C/C++ Files(*.cpp)|*.cpp
1730             //     C/C++ Files(*.c;*.h)|*.c;*.h
1731             // and next iteration cause another split into:
1732             //     C/C++ Files(*.cpp)|*.cpp
1733             //     C/C++ Files(*.c)|*.c
1734             //     C/C++ Files(*.h)|*.h
1735             for ( size_t k=i;k<i+2;k++ )
1736             {
1737                 pos = descriptions[k].Find(filters[k]);
1738                 if (pos != wxNOT_FOUND)
1739                 {
1740                     wxString before = descriptions[k].Left(pos);
1741                     wxString after = descriptions[k].Mid(pos+filters[k].Len());
1742                     pos = before.Find(_T('('),true);
1743                     if (pos>before.Find(_T(')'),true))
1744                     {
1745                         before = before.Left(pos+1);
1746                         before << filters[k];
1747                         pos = after.Find(_T(')'));
1748                         int pos1 = after.Find(_T('('));
1749                         if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1750                         {
1751                             before << after.Mid(pos);
1752                             descriptions[k] = before;
1753                         }
1754                     }
1755                 }
1756             }
1757         }
1758     }
1759 #endif
1760
1761     // autocompletion
1762     for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1763     {
1764         if ( descriptions[j].empty() && !filters[j].empty() )
1765         {
1766             descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1767         }
1768     }
1769
1770     return filters.GetCount();
1771 }
1772
1773 #if defined( __WINDOWS__ )
1774 static bool wxCheckWin32Permission(const wxString& path, DWORD access)
1775 {
1776     // quoting the MSDN: "To obtain a handle to a directory, call the
1777     // CreateFile function with the FILE_FLAG_BACKUP_SEMANTICS flag", but this
1778     // doesn't work under Win9x/ME but then it's not needed there anyhow
1779     bool isdir = wxDirExists(path);
1780     if ( isdir && wxGetOsVersion() == wxOS_WINDOWS_9X )
1781     {
1782         // FAT directories always allow all access, even if they have the
1783         // readonly flag set
1784         return true;
1785     }
1786
1787     HANDLE h = ::CreateFile
1788                  (
1789                     path.c_str(),
1790                     access,
1791                     FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
1792                     NULL,
1793                     OPEN_EXISTING,
1794                     isdir ? FILE_FLAG_BACKUP_SEMANTICS : 0,
1795                     NULL
1796                  );
1797     if ( h != INVALID_HANDLE_VALUE )
1798         CloseHandle(h);
1799
1800     return h != INVALID_HANDLE_VALUE;
1801 }
1802 #endif // __WINDOWS__
1803
1804 bool wxIsWritable(const wxString &path)
1805 {
1806 #if defined( __UNIX__ )
1807     // access() will take in count also symbolic links
1808     return access(wxConvFile.cWX2MB(path), W_OK) == 0;
1809 #elif defined( __WINDOWS__ )
1810     return wxCheckWin32Permission(path, GENERIC_WRITE);
1811 #else
1812     wxUnusedVar(path);
1813     // TODO
1814     return false;
1815 #endif
1816 }
1817
1818 bool wxIsReadable(const wxString &path)
1819 {
1820 #if defined( __UNIX__ )
1821     // access() will take in count also symbolic links
1822     return access(wxConvFile.cWX2MB(path), R_OK) == 0;
1823 #elif defined( __WINDOWS__ )
1824     return wxCheckWin32Permission(path, GENERIC_READ);
1825 #else
1826     wxUnusedVar(path);
1827     // TODO
1828     return false;
1829 #endif
1830 }
1831
1832 bool wxIsExecutable(const wxString &path)
1833 {
1834 #if defined( __UNIX__ )
1835     // access() will take in count also symbolic links
1836     return access(wxConvFile.cWX2MB(path), X_OK) == 0;
1837 #elif defined( __WINDOWS__ )
1838    return wxCheckWin32Permission(path, GENERIC_EXECUTE);
1839 #else
1840     wxUnusedVar(path);
1841     // TODO
1842     return false;
1843 #endif
1844 }
1845
1846
1847 //------------------------------------------------------------------------
1848 // wild character routines
1849 //------------------------------------------------------------------------
1850
1851 bool wxIsWild( const wxString& pattern )
1852 {
1853     wxString tmp = pattern;
1854     wxChar *pat = WXSTRINGCAST(tmp);
1855     while (*pat)
1856     {
1857         switch (*pat++)
1858         {
1859         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1860             return true;
1861         case wxT('\\'):
1862             if (!*pat++)
1863                 return false;
1864         }
1865     }
1866     return false;
1867 }
1868
1869 /*
1870 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1871 *
1872 * The match procedure is public domain code (from ircII's reg.c)
1873 * but modified to suit our tastes (RN: No "%" syntax I guess)
1874 */
1875
1876 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1877 {
1878     if (text.empty())
1879     {
1880         /* Match if both are empty. */
1881         return pat.empty();
1882     }
1883
1884     const wxChar *m = pat.c_str(),
1885     *n = text.c_str(),
1886     *ma = NULL,
1887     *na = NULL;
1888     int just = 0,
1889     acount = 0,
1890     count = 0;
1891
1892     if (dot_special && (*n == wxT('.')))
1893     {
1894         /* Never match so that hidden Unix files
1895          * are never found. */
1896         return false;
1897     }
1898
1899     for (;;)
1900     {
1901         if (*m == wxT('*'))
1902         {
1903             ma = ++m;
1904             na = n;
1905             just = 1;
1906             acount = count;
1907         }
1908         else if (*m == wxT('?'))
1909         {
1910             m++;
1911             if (!*n++)
1912                 return false;
1913         }
1914         else
1915         {
1916             if (*m == wxT('\\'))
1917             {
1918                 m++;
1919                 /* Quoting "nothing" is a bad thing */
1920                 if (!*m)
1921                     return false;
1922             }
1923             if (!*m)
1924             {
1925                 /*
1926                 * If we are out of both strings or we just
1927                 * saw a wildcard, then we can say we have a
1928                 * match
1929                 */
1930                 if (!*n)
1931                     return true;
1932                 if (just)
1933                     return true;
1934                 just = 0;
1935                 goto not_matched;
1936             }
1937             /*
1938             * We could check for *n == NULL at this point, but
1939             * since it's more common to have a character there,
1940             * check to see if they match first (m and n) and
1941             * then if they don't match, THEN we can check for
1942             * the NULL of n
1943             */
1944             just = 0;
1945             if (*m == *n)
1946             {
1947                 m++;
1948                 count++;
1949                 n++;
1950             }
1951             else
1952             {
1953
1954                 not_matched:
1955
1956                 /*
1957                 * If there are no more characters in the
1958                 * string, but we still need to find another
1959                 * character (*m != NULL), then it will be
1960                 * impossible to match it
1961                 */
1962                 if (!*n)
1963                     return false;
1964
1965                 if (ma)
1966                 {
1967                     m = ma;
1968                     n = ++na;
1969                     count = acount;
1970                 }
1971                 else
1972                     return false;
1973             }
1974         }
1975     }
1976 }
1977
1978 // Return the type of an open file
1979 //
1980 // Some file types on some platforms seem seekable but in fact are not.
1981 // The main use of this function is to allow such cases to be detected
1982 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1983 //
1984 // This is important for the archive streams, which benefit greatly from
1985 // being able to seek on a stream, but which will produce corrupt archives
1986 // if they unknowingly seek on a non-seekable stream.
1987 //
1988 // wxFILE_KIND_DISK is a good catch all return value, since other values
1989 // disable features of the archive streams. Some other value must be returned
1990 // for a file type that appears seekable but isn't.
1991 //
1992 // Known examples:
1993 //   *  Pipes on Windows
1994 //   *  Files on VMS with a record format other than StreamLF
1995 //
1996 wxFileKind wxGetFileKind(int fd)
1997 {
1998 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1999     switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
2000     {
2001         case FILE_TYPE_CHAR:
2002             return wxFILE_KIND_TERMINAL;
2003         case FILE_TYPE_DISK:
2004             return wxFILE_KIND_DISK;
2005         case FILE_TYPE_PIPE:
2006             return wxFILE_KIND_PIPE;
2007     }
2008
2009     return wxFILE_KIND_UNKNOWN;
2010
2011 #elif defined(__UNIX__)
2012     if (isatty(fd))
2013         return wxFILE_KIND_TERMINAL;
2014
2015     struct stat st;
2016     fstat(fd, &st);
2017
2018     if (S_ISFIFO(st.st_mode))
2019         return wxFILE_KIND_PIPE;
2020     if (!S_ISREG(st.st_mode))
2021         return wxFILE_KIND_UNKNOWN;
2022
2023     #if defined(__VMS__)
2024         if (st.st_fab_rfm != FAB$C_STMLF)
2025             return wxFILE_KIND_UNKNOWN;
2026     #endif
2027
2028     return wxFILE_KIND_DISK;
2029
2030 #else
2031     #define wxFILEKIND_STUB
2032     (void)fd;
2033     return wxFILE_KIND_DISK;
2034 #endif
2035 }
2036
2037 wxFileKind wxGetFileKind(FILE *fp)
2038 {
2039     // Note: The watcom rtl dll doesn't have fileno (the static lib does).
2040     //       Should be fixed in version 1.4.
2041 #if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4)
2042     (void)fp;
2043     return wxFILE_KIND_DISK;
2044 #else
2045     return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN;
2046 #endif
2047 }
2048
2049 #ifdef __VISUALC__
2050     #pragma warning(default:4706)   // assignment within conditional expression
2051 #endif // VC++