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 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 911 {
 912     FSRef fsRef ;
 913     if ( FSpMakeFSRef( spec , &fsRef) == noErr )
 914     {
 915         return wxMacFSRefToPath( &fsRef ) ;
 916     }
 917     return wxEmptyString ;
 918 }
 919
 920 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
 921 {
 922     OSStatus err = noErr ;
 923     FSRef fsRef ;
 924     wxMacPathToFSRef( path , &fsRef ) ;
 925     err = FSRefMakeFSSpec( &fsRef , spec ) ;
 926 }
 927
 928 #endif // __WXMAC__
 929
 930 void
 931 wxDos2UnixFilename (wxChar *s)
 932 {
 933   if (s)
 934     while (*s)
 935       {
 936         if (*s == _T('\\'))
 937           *s = _T('/');
 938 #ifdef __WXMSW__
 939         else
 940           *s = (wxChar)wxTolower (*s);        // Case INDEPENDENT
 941 #endif
 942         s++;
 943       }
 944 }
 945
 946 void
 947 #if defined(__WXMSW__) || defined(__OS2__)
 948 wxUnix2DosFilename (wxChar *s)
 949 #else
 950 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 951 #endif
 952 {
 953 // Yes, I really mean this to happen under DOS only! JACS
 954 #if defined(__WXMSW__) || defined(__OS2__)
 955   if (s)
 956     while (*s)
 957       {
 958         if (*s == wxT('/'))
 959           *s = wxT('\\');
 960         s++;
 961       }
 962 #endif
 963 }
 964
 965 // Concatenate two files to form third
 966 bool
 967 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 968 {
 969 #if wxUSE_FILE
 970
 971     wxFile in1(file1), in2(file2);
 972     wxTempFile out(file3);
 973
 974     if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
 975         return false;
 976
 977     ssize_t ofs;
 978     unsigned char buf[1024];
 979
 980     for( int i=0; i<2; i++)
 981     {
 982         wxFile *in = i==0 ? &in1 : &in2;
 983         do{
 984             if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
 985             if ( ofs > 0 )
 986                 if ( !out.Write(buf,ofs) )
 987                     return false;
 988         } while ( ofs == (ssize_t)WXSIZEOF(buf) );
 989     }
 990
 991     return out.Commit();
 992
 993 #else
 994
 995     wxUnusedVar(file1);
 996     wxUnusedVar(file2);
 997     wxUnusedVar(file3);
 998     return false;
 999
1000 #endif
1001 }
1002
1003 // Copy files
1004 bool
1005 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1006 {
1007 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1008     // CopyFile() copies file attributes and modification time too, so use it
1009     // instead of our code if available
1010     //
1011     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1012     if ( !::CopyFile(file1, file2, !overwrite) )
1013     {
1014         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1015                       file1.c_str(), file2.c_str());
1016
1017         return false;
1018     }
1019 #elif defined(__OS2__)
1020     if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1021         return false;
1022 #elif defined(__PALMOS__)
1023     // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1024     return false;
1025 #elif wxUSE_FILE // !Win32
1026
1027     wxStructStat fbuf;
1028     // get permissions of file1
1029     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1030     {
1031         // the file probably doesn't exist or we haven't the rights to read
1032         // from it anyhow
1033         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1034                       file1.c_str());
1035         return false;
1036     }
1037
1038     // open file1 for reading
1039     wxFile fileIn(file1, wxFile::read);
1040     if ( !fileIn.IsOpened() )
1041         return false;
1042
1043     // remove file2, if it exists. This is needed for creating
1044     // file2 with the correct permissions in the next step
1045     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1046     {
1047         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1048                       file2.c_str());
1049         return false;
1050     }
1051
1052     // reset the umask as we want to create the file with exactly the same
1053     // permissions as the original one
1054     wxCHANGE_UMASK(0);
1055
1056     // create file2 with the same permissions than file1 and open it for
1057     // writing
1058
1059     wxFile fileOut;
1060     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1061         return false;
1062
1063     // copy contents of file1 to file2
1064     char buf[4096];
1065     size_t count;
1066     for ( ;; )
1067     {
1068         count = fileIn.Read(buf, WXSIZEOF(buf));
1069         if ( fileIn.Error() )
1070             return false;
1071
1072         // end of file?
1073         if ( !count )
1074             break;
1075
1076         if ( fileOut.Write(buf, count) < count )
1077             return false;
1078     }
1079
1080     // we can expect fileIn to be closed successfully, but we should ensure
1081     // that fileOut was closed as some write errors (disk full) might not be
1082     // detected before doing this
1083     if ( !fileIn.Close() || !fileOut.Close() )
1084         return false;
1085
1086 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1087     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1088     // however
1089     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1090     {
1091         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1092                       file2.c_str());
1093         return false;
1094     }
1095 #endif // OS/2 || Mac
1096
1097 #else // !Win32 && ! wxUSE_FILE
1098
1099     // impossible to simulate with wxWidgets API
1100     wxUnusedVar(file1);
1101     wxUnusedVar(file2);
1102     wxUnusedVar(overwrite);
1103     return false;
1104
1105 #endif // __WXMSW__ && __WIN32__
1106
1107     return true;
1108 }
1109
1110 bool
1111 wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite)
1112 {
1113     if ( !overwrite && wxFileExists(file2) )
1114     {
1115         wxLogSysError
1116         (
1117             _("Failed to rename the file '%s' to '%s' because the destination file already exists."),
1118             file1.c_str(), file2.c_str()
1119         );
1120
1121         return false;
1122     }
1123
1124 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1125     // Normal system call
1126   if ( wxRename (file1, file2) == 0 )
1127     return true;
1128 #endif
1129
1130   // Try to copy
1131   if (wxCopyFile(file1, file2, overwrite)) {
1132     wxRemoveFile(file1);
1133     return true;
1134   }
1135   // Give up
1136   return false;
1137 }
1138
1139 bool wxRemoveFile(const wxString& file)
1140 {
1141 #if defined(__VISUALC__) \
1142  || defined(__BORLANDC__) \
1143  || defined(__WATCOMC__) \
1144  || defined(__DMC__) \
1145  || defined(__GNUWIN32__) \
1146  || (defined(__MWERKS__) && defined(__MSL__))
1147     int res = wxRemove(file);
1148 #elif defined(__WXMAC__)
1149     int res = unlink(wxFNCONV(file));
1150 #elif defined(__WXPALMOS__)
1151     int res = 1;
1152     // TODO with VFSFileDelete()
1153 #else
1154     int res = unlink(OS_FILENAME(file));
1155 #endif
1156
1157     return res == 0;
1158 }
1159
1160 bool wxMkdir(const wxString& dir, int perm)
1161 {
1162 #if defined(__WXPALMOS__)
1163     return false;
1164 #elif defined(__WXMAC__) && !defined(__UNIX__)
1165     return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1166 #else // !Mac
1167     const wxChar *dirname = dir.c_str();
1168
1169     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1170     // for the GNU compiler
1171 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1172   #if defined(MSVCRT)
1173     wxUnusedVar(perm);
1174     if ( mkdir(wxFNCONV(dirname)) != 0 )
1175   #else
1176     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1177   #endif
1178 #elif defined(__OS2__)
1179     wxUnusedVar(perm);
1180     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1181 #elif defined(__DOS__)
1182   #if defined(__WATCOMC__)
1183     (void)perm;
1184     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1185   #elif defined(__DJGPP__)
1186     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1187   #else
1188     #error "Unsupported DOS compiler!"
1189   #endif
1190 #else  // !MSW, !DOS and !OS/2 VAC++
1191     wxUnusedVar(perm);
1192 #ifdef __WXWINCE__
1193     if ( !CreateDirectory(dirname, NULL) )
1194 #else
1195     if ( wxMkDir(dir.fn_str()) != 0 )
1196 #endif
1197 #endif // !MSW/MSW
1198     {
1199         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1200
1201         return false;
1202     }
1203
1204     return true;
1205 #endif // Mac/!Mac
1206 }
1207
1208 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1209 {
1210 #if defined(__VMS__)
1211     return false; //to be changed since rmdir exists in VMS7.x
1212 #elif defined(__OS2__)
1213     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1214 #elif defined(__WXWINCE__)
1215     return (CreateDirectory(dir, NULL) != 0);
1216 #elif defined(__WXPALMOS__)
1217     // TODO with VFSFileRename()
1218     return false;
1219 #else
1220     return (wxRmDir(OS_FILENAME(dir)) == 0);
1221 #endif
1222 }
1223
1224 // does the path exists? (may have or not '/' or '\\' at the end)
1225 bool wxDirExists(const wxChar *pszPathName)
1226 {
1227     wxString strPath(pszPathName);
1228
1229 #if defined(__WINDOWS__) || defined(__OS2__)
1230     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1231     // so remove all trailing backslashes from the path - but don't do this for
1232     // the pathes "d:\" (which are different from "d:") nor for just "\"
1233     while ( wxEndsWithPathSeparator(strPath) )
1234     {
1235         size_t len = strPath.length();
1236         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1237             break;
1238
1239         strPath.Truncate(len - 1);
1240     }
1241 #endif // __WINDOWS__
1242
1243 #ifdef __OS2__
1244     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1245     if (strPath.length() == 2 && strPath[1u] == _T(':'))
1246         strPath << _T('.');
1247 #endif
1248
1249 #if defined(__WXPALMOS__)
1250     return false;
1251 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1252     // stat() can't cope with network paths
1253     DWORD ret = ::GetFileAttributes(strPath);
1254
1255     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1256 #elif defined(__OS2__)
1257     FILESTATUS3 Info = {{0}};
1258     APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
1259                                    (void*) &Info, sizeof(FILESTATUS3));
1260
1261     return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
1262       (rc == ERROR_SHARING_VIOLATION);
1263     // If we got a sharing violation, there must be something with this name.
1264 #else // !__WIN32__
1265
1266     wxStructStat st;
1267 #ifndef __VISAGECPP__
1268     return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1269 #else
1270     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1271     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1272 #endif
1273
1274 #endif // __WIN32__/!__WIN32__
1275 }
1276
1277 // Get a temporary filename, opening and closing the file.
1278 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1279 {
1280 #if wxUSE_FILE
1281     wxString filename = wxFileName::CreateTempFileName(prefix);
1282     if ( filename.empty() )
1283         return NULL;
1284
1285     if ( buf )
1286         wxStrcpy(buf, filename);
1287     else
1288         buf = MYcopystring(filename);
1289
1290     return buf;
1291 #else
1292     wxUnusedVar(prefix);
1293     wxUnusedVar(buf);
1294     // wxFileName::CreateTempFileName needs wxFile class enabled
1295     return NULL;
1296 #endif
1297 }
1298
1299 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1300 {
1301     buf = wxGetTempFileName(prefix);
1302
1303     return !buf.empty();
1304 }
1305
1306 // Get first file name matching given wild card.
1307
1308 static wxDir *gs_dir = NULL;
1309 static wxString gs_dirPath;
1310
1311 wxString wxFindFirstFile(const wxChar *spec, int flags)
1312 {
1313     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1314     if ( gs_dirPath.empty() )
1315         gs_dirPath = wxT(".");
1316     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1317         gs_dirPath << wxFILE_SEP_PATH;
1318
1319     if (gs_dir)
1320         delete gs_dir;
1321     gs_dir = new wxDir(gs_dirPath);
1322
1323     if ( !gs_dir->IsOpened() )
1324     {
1325         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1326         return wxEmptyString;
1327     }
1328
1329     int dirFlags;
1330     switch (flags)
1331     {
1332         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1333         case wxFILE: dirFlags = wxDIR_FILES; break;
1334         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1335     }
1336
1337     wxString result;
1338     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1339     if ( result.empty() )
1340     {
1341         wxDELETE(gs_dir);
1342         return result;
1343     }
1344
1345     return gs_dirPath + result;
1346 }
1347
1348 wxString wxFindNextFile()
1349 {
1350     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1351
1352     wxString result;
1353     gs_dir->GetNext(&result);
1354
1355     if ( result.empty() )
1356     {
1357         wxDELETE(gs_dir);
1358         return result;
1359     }
1360
1361     return gs_dirPath + result;
1362 }
1363
1364
1365 // Get current working directory.
1366 // If buf is NULL, allocates space using new, else copies into buf.
1367 // wxGetWorkingDirectory() is obsolete, use wxGetCwd()
1368 // wxDoGetCwd() is their common core to be moved
1369 // to wxGetCwd() once wxGetWorkingDirectory() will be removed.
1370 // Do not expose wxDoGetCwd in headers!
1371
1372 wxChar *wxDoGetCwd(wxChar *buf, int sz)
1373 {
1374 #if defined(__WXPALMOS__)
1375     // TODO
1376     if(buf && sz>0) buf[0] = _T('\0');
1377     return buf;
1378 #elif defined(__WXWINCE__)
1379     // TODO
1380     if(buf && sz>0) buf[0] = _T('\0');
1381     return buf;
1382 #else
1383     if ( !buf )
1384     {
1385         buf = new wxChar[sz + 1];
1386     }
1387
1388     bool ok wxDUMMY_INITIALIZE(false);
1389
1390     // for the compilers which have Unicode version of _getcwd(), call it
1391     // directly, for the others call the ANSI version and do the translation
1392 #if !wxUSE_UNICODE
1393     #define cbuf buf
1394 #else // wxUSE_UNICODE
1395     bool needsANSI = true;
1396
1397     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1398         char cbuf[_MAXPATHLEN];
1399     #endif
1400
1401     #ifdef HAVE_WGETCWD
1402         #if wxUSE_UNICODE_MSLU
1403             if ( wxGetOsVersion() != wxOS_WINDOWS_9X )
1404         #else
1405             char *cbuf = NULL; // never really used because needsANSI will always be false
1406         #endif
1407             {
1408                 ok = _wgetcwd(buf, sz) != NULL;
1409                 needsANSI = false;
1410             }
1411     #endif
1412
1413     if ( needsANSI )
1414 #endif // wxUSE_UNICODE
1415     {
1416     #if defined(_MSC_VER) || defined(__MINGW32__)
1417         ok = _getcwd(cbuf, sz) != NULL;
1418     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1419         char lbuf[1024] ;
1420         if ( getcwd( lbuf , sizeof( lbuf ) ) )
1421         {
1422             wxString res( lbuf , *wxConvCurrent ) ;
1423             wxStrcpy( buf , res ) ;
1424             ok = true;
1425         }
1426         else
1427             ok = false ;
1428     #elif defined(__OS2__)
1429         APIRET rc;
1430         ULONG ulDriveNum = 0;
1431         ULONG ulDriveMap = 0;
1432         rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1433         ok = rc == 0;
1434         if (ok)
1435         {
1436             sz -= 3;
1437             rc = ::DosQueryCurrentDir( 0 // current drive
1438                                       ,cbuf + 3
1439                                       ,(PULONG)&sz
1440                                      );
1441             cbuf[0] = char('A' + (ulDriveNum - 1));
1442             cbuf[1] = ':';
1443             cbuf[2] = '\\';
1444             ok = rc == 0;
1445         }
1446     #else // !Win32/VC++ !Mac !OS2
1447         ok = getcwd(cbuf, sz) != NULL;
1448     #endif // platform
1449
1450     #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1451         // finally convert the result to Unicode if needed
1452         wxConvFile.MB2WC(buf, cbuf, sz);
1453     #endif // wxUSE_UNICODE
1454     }
1455
1456     if ( !ok )
1457     {
1458         wxLogSysError(_("Failed to get the working directory"));
1459
1460         // VZ: the old code used to return "." on error which didn't make any
1461         //     sense at all to me - empty string is a better error indicator
1462         //     (NULL might be even better but I'm afraid this could lead to
1463         //     problems with the old code assuming the return is never NULL)
1464         buf[0] = _T('\0');
1465     }
1466     else // ok, but we might need to massage the path into the right format
1467     {
1468 #ifdef __DJGPP__
1469         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1470         //     with / deliminers. We don't like that.
1471         for (wxChar *ch = buf; *ch; ch++)
1472         {
1473             if (*ch == wxT('/'))
1474                 *ch = wxT('\\');
1475         }
1476 #endif // __DJGPP__
1477
1478 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1479 //      he needs Unix as opposed to Win32 pathnames
1480 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1481         // another example of DOS/Unix mix (Cygwin)
1482         wxString pathUnix = buf;
1483 #if wxUSE_UNICODE
1484         char bufA[_MAXPATHLEN];
1485         cygwin_conv_to_full_win32_path(pathUnix.mb_str(wxConvFile), bufA);
1486         wxConvFile.MB2WC(buf, bufA, sz);
1487 #else
1488         cygwin_conv_to_full_win32_path(pathUnix, buf);
1489 #endif // wxUSE_UNICODE
1490 #endif // __CYGWIN__
1491     }
1492
1493     return buf;
1494
1495 #if !wxUSE_UNICODE
1496     #undef cbuf
1497 #endif
1498
1499 #endif
1500     // __WXWINCE__
1501 }
1502
1503 #if WXWIN_COMPATIBILITY_2_6
1504 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1505 {
1506     return wxDoGetCwd(buf,sz);
1507 }
1508 #endif // WXWIN_COMPATIBILITY_2_6
1509
1510 wxString wxGetCwd()
1511 {
1512     wxString str;
1513     wxDoGetCwd(wxStringBuffer(str, _MAXPATHLEN), _MAXPATHLEN);
1514     return str;
1515 }
1516
1517 bool wxSetWorkingDirectory(const wxString& d)
1518 {
1519 #if defined(__OS2__)
1520     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1521 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1522     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1523 #elif defined(__WINDOWS__)
1524
1525 #ifdef __WIN32__
1526 #ifdef __WXWINCE__
1527     // No equivalent in WinCE
1528     wxUnusedVar(d);
1529     return false;
1530 #else
1531     return (bool)(SetCurrentDirectory(d) != 0);
1532 #endif
1533 #else
1534     // Must change drive, too.
1535     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1536     if (isDriveSpec)
1537     {
1538         wxChar firstChar = d[0];
1539
1540         // To upper case
1541         if (firstChar > 90)
1542             firstChar = firstChar - 32;
1543
1544         // To a drive number
1545         unsigned int driveNo = firstChar - 64;
1546         if (driveNo > 0)
1547         {
1548             unsigned int noDrives;
1549             _dos_setdrive(driveNo, &noDrives);
1550         }
1551     }
1552     bool success = (chdir(WXSTRINGCAST d) == 0);
1553
1554     return success;
1555 #endif
1556
1557 #endif
1558 }
1559
1560 // Get the OS directory if appropriate (such as the Windows directory).
1561 // On non-Windows platform, probably just return the empty string.
1562 wxString wxGetOSDirectory()
1563 {
1564 #ifdef __WXWINCE__
1565     return wxString(wxT("\\Windows"));
1566 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1567     wxChar buf[256];
1568     GetWindowsDirectory(buf, 256);
1569     return wxString(buf);
1570 #elif defined(__WXMAC__)
1571     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1572 #else
1573     return wxEmptyString;
1574 #endif
1575 }
1576
1577 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1578 {
1579     size_t len = wxStrlen(pszFileName);
1580
1581     return len && wxIsPathSeparator(pszFileName[len - 1]);
1582 }
1583
1584 // find a file in a list of directories, returns false if not found
1585 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1586 {
1587     // we assume that it's not empty
1588     wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1589                  _T("empty file name in wxFindFileInPath"));
1590
1591     // skip path separator in the beginning of the file name if present
1592     if ( wxIsPathSeparator(*pszFile) )
1593         pszFile++;
1594
1595     // copy the path (strtok will modify it)
1596     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1597     wxStrcpy(szPath, pszPath);
1598
1599     wxString strFile;
1600     wxChar *pc, *save_ptr;
1601     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1602           pc != NULL;
1603           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1604     {
1605         // search for the file in this directory
1606         strFile = pc;
1607         if ( !wxEndsWithPathSeparator(pc) )
1608             strFile += wxFILE_SEP_PATH;
1609         strFile += pszFile;
1610
1611         if ( wxFileExists(strFile) ) {
1612             *pStr = strFile;
1613             break;
1614         }
1615     }
1616
1617     // suppress warning about unused variable save_ptr when wxStrtok() is a
1618     // macro which throws away its third argument
1619     save_ptr = pc;
1620
1621     delete [] szPath;
1622
1623     return pc != NULL;  // if true => we breaked from the loop
1624 }
1625
1626 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1627                              wxString *pstrPath,
1628                              wxString *pstrName,
1629                              wxString *pstrExt)
1630 {
1631     // it can be empty, but it shouldn't be NULL
1632     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1633
1634     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1635 }
1636
1637 #if wxUSE_DATETIME
1638
1639 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1640 {
1641     wxDateTime mtime;
1642     if ( !wxFileName(filename).GetTimes(NULL, &mtime, NULL) )
1643         return (time_t)-1;
1644
1645     return mtime.GetTicks();
1646 }
1647
1648 #endif // wxUSE_DATETIME
1649
1650
1651 // Parses the filterStr, returning the number of filters.
1652 // Returns 0 if none or if there's a problem.
1653 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1654
1655 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr,
1656                                            wxArrayString& descriptions,
1657                                            wxArrayString& filters)
1658 {
1659     descriptions.Clear();
1660     filters.Clear();
1661
1662     wxString str(filterStr);
1663
1664     wxString description, filter;
1665     int pos = 0;
1666     while( pos != wxNOT_FOUND )
1667     {
1668         pos = str.Find(wxT('|'));
1669         if ( pos == wxNOT_FOUND )
1670         {
1671             // if there are no '|'s at all in the string just take the entire
1672             // string as filter and make description empty for later autocompletion
1673             if ( filters.IsEmpty() )
1674             {
1675                 descriptions.Add(wxEmptyString);
1676                 filters.Add(filterStr);
1677             }
1678             else
1679             {
1680                 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1681             }
1682
1683             break;
1684         }
1685
1686         description = str.Left(pos);
1687         str = str.Mid(pos + 1);
1688         pos = str.Find(wxT('|'));
1689         if ( pos == wxNOT_FOUND )
1690         {
1691             filter = str;
1692         }
1693         else
1694         {
1695             filter = str.Left(pos);
1696             str = str.Mid(pos + 1);
1697         }
1698
1699         descriptions.Add(description);
1700         filters.Add(filter);
1701     }
1702
1703 #if defined(__WXMOTIF__)
1704     // split it so there is one wildcard per entry
1705     for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1706     {
1707         pos = filters[i].Find(wxT(';'));
1708         if (pos != wxNOT_FOUND)
1709         {
1710             // first split only filters
1711             descriptions.Insert(descriptions[i],i+1);
1712             filters.Insert(filters[i].Mid(pos+1),i+1);
1713             filters[i]=filters[i].Left(pos);
1714
1715             // autoreplace new filter in description with pattern:
1716             //     C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1717             // cause split into:
1718             //     C/C++ Files(*.cpp)|*.cpp
1719             //     C/C++ Files(*.c;*.h)|*.c;*.h
1720             // and next iteration cause another split into:
1721             //     C/C++ Files(*.cpp)|*.cpp
1722             //     C/C++ Files(*.c)|*.c
1723             //     C/C++ Files(*.h)|*.h
1724             for ( size_t k=i;k<i+2;k++ )
1725             {
1726                 pos = descriptions[k].Find(filters[k]);
1727                 if (pos != wxNOT_FOUND)
1728                 {
1729                     wxString before = descriptions[k].Left(pos);
1730                     wxString after = descriptions[k].Mid(pos+filters[k].Len());
1731                     pos = before.Find(_T('('),true);
1732                     if (pos>before.Find(_T(')'),true))
1733                     {
1734                         before = before.Left(pos+1);
1735                         before << filters[k];
1736                         pos = after.Find(_T(')'));
1737                         int pos1 = after.Find(_T('('));
1738                         if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1739                         {
1740                             before << after.Mid(pos);
1741                             descriptions[k] = before;
1742                         }
1743                     }
1744                 }
1745             }
1746         }
1747     }
1748 #endif
1749
1750     // autocompletion
1751     for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1752     {
1753         if ( descriptions[j].empty() && !filters[j].empty() )
1754         {
1755             descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1756         }
1757     }
1758
1759     return filters.GetCount();
1760 }
1761
1762 #if defined( __WINDOWS__ )
1763 bool wxCheckGenericPermission(const wxString &path, DWORD access)
1764 {
1765     // quoting the MSDN: "To obtain a handle to a directory, call the
1766     // CreateFile function with the FILE_FLAG_BACKUP_SEMANTICS flag"
1767     wxWinVersion ver = wxGetWinVersion();
1768     bool isdir = wxDirExists(path);
1769     if (isdir && (ver == wxWinVersion_95 || ver == wxWinVersion_98 || ver == wxWinVersion_ME))
1770     {
1771         // however Win95/98/ME do not support FILE_FLAG_BACKUP_SEMANTICS...
1772         if (access == GENERIC_READ)
1773         {
1774             WIN32_FILE_ATTRIBUTE_DATA data;
1775             if (GetFileAttributesEx(path.c_str(), GetFileExInfoStandard, &data) == 0)
1776                 return false;        // cannot query attributes
1777             return (data.dwFileAttributes & FILE_ATTRIBUTE_READONLY) == 0;
1778         }
1779
1780         // FIXME: is it true that directories are always writable & executable on Win9X family ?
1781         return true;
1782     }
1783     else
1784     {
1785         HANDLE h = CreateFile(path.c_str(), access,
1786                               FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
1787                               OPEN_EXISTING, isdir ? FILE_FLAG_BACKUP_SEMANTICS : 0, NULL);
1788         if (h != INVALID_HANDLE_VALUE)
1789             CloseHandle(h);
1790
1791         return h != INVALID_HANDLE_VALUE;
1792     }
1793 }
1794 #endif
1795
1796 bool wxIsWritable(const wxString &path)
1797 {
1798 #if defined( __UNIX__ )
1799     // access() will take in count also symbolic links
1800     return access(wxConvFile.cWX2MB(path), W_OK) == 0;
1801 #elif defined( __WINDOWS__ )
1802     return wxCheckGenericPermission(path, GENERIC_WRITE);
1803 #else
1804     // TODO
1805     return false;
1806 #endif
1807 }
1808
1809 bool wxIsReadable(const wxString &path)
1810 {
1811 #if defined( __UNIX__ )
1812     // access() will take in count also symbolic links
1813     return access(wxConvFile.cWX2MB(path), R_OK) == 0;
1814 #elif defined( __WINDOWS__ )
1815     return wxCheckGenericPermission(path, GENERIC_READ);
1816 #else
1817     // TODO
1818     return false;
1819 #endif
1820 }
1821
1822 bool wxIsExecutable(const wxString &path)
1823 {
1824 #if defined( __UNIX__ )
1825     // access() will take in count also symbolic links
1826     return access(wxConvFile.cWX2MB(path), X_OK) == 0;
1827 #elif defined( __WINDOWS__ )
1828    return wxCheckGenericPermission(path, GENERIC_EXECUTE);
1829 #else
1830     // TODO
1831     return false;
1832 #endif
1833 }
1834
1835
1836 //------------------------------------------------------------------------
1837 // wild character routines
1838 //------------------------------------------------------------------------
1839
1840 bool wxIsWild( const wxString& pattern )
1841 {
1842     wxString tmp = pattern;
1843     wxChar *pat = WXSTRINGCAST(tmp);
1844     while (*pat)
1845     {
1846         switch (*pat++)
1847         {
1848         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1849             return true;
1850         case wxT('\\'):
1851             if (!*pat++)
1852                 return false;
1853         }
1854     }
1855     return false;
1856 }
1857
1858 /*
1859 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1860 *
1861 * The match procedure is public domain code (from ircII's reg.c)
1862 * but modified to suit our tastes (RN: No "%" syntax I guess)
1863 */
1864
1865 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1866 {
1867     if (text.empty())
1868     {
1869         /* Match if both are empty. */
1870         return pat.empty();
1871     }
1872
1873     const wxChar *m = pat.c_str(),
1874     *n = text.c_str(),
1875     *ma = NULL,
1876     *na = NULL;
1877     int just = 0,
1878     acount = 0,
1879     count = 0;
1880
1881     if (dot_special && (*n == wxT('.')))
1882     {
1883         /* Never match so that hidden Unix files
1884          * are never found. */
1885         return false;
1886     }
1887
1888     for (;;)
1889     {
1890         if (*m == wxT('*'))
1891         {
1892             ma = ++m;
1893             na = n;
1894             just = 1;
1895             acount = count;
1896         }
1897         else if (*m == wxT('?'))
1898         {
1899             m++;
1900             if (!*n++)
1901                 return false;
1902         }
1903         else
1904         {
1905             if (*m == wxT('\\'))
1906             {
1907                 m++;
1908                 /* Quoting "nothing" is a bad thing */
1909                 if (!*m)
1910                     return false;
1911             }
1912             if (!*m)
1913             {
1914                 /*
1915                 * If we are out of both strings or we just
1916                 * saw a wildcard, then we can say we have a
1917                 * match
1918                 */
1919                 if (!*n)
1920                     return true;
1921                 if (just)
1922                     return true;
1923                 just = 0;
1924                 goto not_matched;
1925             }
1926             /*
1927             * We could check for *n == NULL at this point, but
1928             * since it's more common to have a character there,
1929             * check to see if they match first (m and n) and
1930             * then if they don't match, THEN we can check for
1931             * the NULL of n
1932             */
1933             just = 0;
1934             if (*m == *n)
1935             {
1936                 m++;
1937                 count++;
1938                 n++;
1939             }
1940             else
1941             {
1942
1943                 not_matched:
1944
1945                 /*
1946                 * If there are no more characters in the
1947                 * string, but we still need to find another
1948                 * character (*m != NULL), then it will be
1949                 * impossible to match it
1950                 */
1951                 if (!*n)
1952                     return false;
1953
1954                 if (ma)
1955                 {
1956                     m = ma;
1957                     n = ++na;
1958                     count = acount;
1959                 }
1960                 else
1961                     return false;
1962             }
1963         }
1964     }
1965 }
1966
1967 // Return the type of an open file
1968 //
1969 // Some file types on some platforms seem seekable but in fact are not.
1970 // The main use of this function is to allow such cases to be detected
1971 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1972 //
1973 // This is important for the archive streams, which benefit greatly from
1974 // being able to seek on a stream, but which will produce corrupt archives
1975 // if they unknowingly seek on a non-seekable stream.
1976 //
1977 // wxFILE_KIND_DISK is a good catch all return value, since other values
1978 // disable features of the archive streams. Some other value must be returned
1979 // for a file type that appears seekable but isn't.
1980 //
1981 // Known examples:
1982 //   *  Pipes on Windows
1983 //   *  Files on VMS with a record format other than StreamLF
1984 //
1985 wxFileKind wxGetFileKind(int fd)
1986 {
1987 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1988     switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1989     {
1990         case FILE_TYPE_CHAR:
1991             return wxFILE_KIND_TERMINAL;
1992         case FILE_TYPE_DISK:
1993             return wxFILE_KIND_DISK;
1994         case FILE_TYPE_PIPE:
1995             return wxFILE_KIND_PIPE;
1996     }
1997
1998     return wxFILE_KIND_UNKNOWN;
1999
2000 #elif defined(__UNIX__)
2001     if (isatty(fd))
2002         return wxFILE_KIND_TERMINAL;
2003
2004     struct stat st;
2005     fstat(fd, &st);
2006
2007     if (S_ISFIFO(st.st_mode))
2008         return wxFILE_KIND_PIPE;
2009     if (!S_ISREG(st.st_mode))
2010         return wxFILE_KIND_UNKNOWN;
2011
2012     #if defined(__VMS__)
2013         if (st.st_fab_rfm != FAB$C_STMLF)
2014             return wxFILE_KIND_UNKNOWN;
2015     #endif
2016
2017     return wxFILE_KIND_DISK;
2018
2019 #else
2020     #define wxFILEKIND_STUB
2021     (void)fd;
2022     return wxFILE_KIND_DISK;
2023 #endif
2024 }
2025
2026 wxFileKind wxGetFileKind(FILE *fp)
2027 {
2028     // Note: The watcom rtl dll doesn't have fileno (the static lib does).
2029     //       Should be fixed in version 1.4.
2030 #if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4)
2031     (void)fp;
2032     return wxFILE_KIND_DISK;
2033 #else
2034     return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN;
2035 #endif
2036 }
2037
2038 #ifdef __VISUALC__
2039     #pragma warning(default:4706)   // assignment within conditional expression
2040 #endif // VC++