src/common/filefn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        filefn.cpp
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "filefn.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26 #include "wx/defs.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 #include "wx/utils.h"
  33 #include "wx/intl.h"
  34 #include "wx/file.h"
  35 #include "wx/filename.h"
  36 #include "wx/dir.h"
  37
  38 // there are just too many of those...
  39 #ifdef __VISUALC__
  40     #pragma warning(disable:4706)   // assignment within conditional expression
  41 #endif // VC++
  42
  43 #include <ctype.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <string.h>
  47 #if !defined(__WATCOMC__)
  48     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  49         #include <errno.h>
  50     #endif
  51 #endif
  52
  53 #if defined(__WXMAC__)
  54   #include  "wx/mac/private.h"  // includes mac headers
  55 #endif
  56
  57 #include <time.h>
  58
  59 #ifndef __MWERKS__
  60     #include <sys/types.h>
  61     #include <sys/stat.h>
  62 #else
  63     #include <stat.h>
  64     #include <unistd.h>
  65     #include <unix.h>
  66 #endif
  67
  68 #ifdef __UNIX__
  69     #include <unistd.h>
  70     #include <dirent.h>
  71 #endif
  72
  73 #ifdef __WXPM__
  74     #include <process.h>
  75     #include "wx/os2/private.h"
  76 #endif
  77 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  78 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
  79     #include <direct.h>
  80     #include <dos.h>
  81     #include <io.h>
  82 #endif // __WINDOWS__
  83 #endif // native Win compiler
  84
  85 #if defined(__DOS__)
  86     #ifdef __WATCOMC__
  87         #include <direct.h>
  88         #include <dos.h>
  89         #include <io.h>
  90     #endif
  91     #ifdef __DJGPP__
  92         #include <unistd.h>
  93     #endif
  94 #endif
  95
  96 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  97                     // this (3.1 I believe) and how to test for it.
  98                     // If this works for Borland 4.0 as well, then no worries.
  99     #include <dir.h>
 100 #endif
 101
 102 #ifdef __SALFORDC__
 103     #include <dir.h>
 104     #include <unix.h>
 105 #endif
 106
 107 #include "wx/setup.h"
 108 #include "wx/log.h"
 109
 110 // No, Cygwin doesn't appear to have fnmatch.h after all.
 111 #if defined(HAVE_FNMATCH_H)
 112     #include "fnmatch.h"
 113 #endif
 114
 115 #ifdef __WINDOWS__
 116     #include <windows.h>
 117
 118     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
 119     //
 120     // note that it must be included after <windows.h>
 121     #ifdef __GNUWIN32__
 122         #ifdef __CYGWIN__
 123             #include <sys/cygwin.h>
 124         #endif
 125         #include <wchar.h>
 126         #ifndef __TWIN32__
 127             #include <sys/unistd.h>
 128         #endif
 129     #endif // __GNUWIN32__
 130 #endif // __WINDOWS__
 131
 132 // TODO: Borland probably has _wgetcwd as well?
 133 #ifdef _MSC_VER
 134     #define HAVE_WGETCWD
 135 #endif
 136
 137 // ----------------------------------------------------------------------------
 138 // constants
 139 // ----------------------------------------------------------------------------
 140
 141 #ifndef _MAXPATHLEN
 142     #define _MAXPATHLEN 1024
 143 #endif
 144
 145 #ifdef __WXMAC__
 146 #    include "MoreFiles.h"
 147 #    include "MoreFilesExtras.h"
 148 #    include "FullPath.h"
 149 #    include "FSpCompat.h"
 150 #endif
 151
 152 IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 153
 154 // ----------------------------------------------------------------------------
 155 // private globals
 156 // ----------------------------------------------------------------------------
 157
 158 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 159
 160 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 161 //
 162 // VisualAge C++ V4.0 cannot have any external linkage const decs
 163 // in headers included by more than one primary source
 164 //
 165 const off_t wxInvalidOffset = (off_t)-1;
 166 #endif
 167
 168 // ----------------------------------------------------------------------------
 169 // macros
 170 // ----------------------------------------------------------------------------
 171
 172 // we need to translate Mac filenames before passing them to OS functions
 173 #define OS_FILENAME(s) (s.fn_str())
 174
 175 // ============================================================================
 176 // implementation
 177 // ============================================================================
 178
 179 void wxPathList::Add (const wxString& path)
 180 {
 181     wxStringList::Add (WXSTRINGCAST path);
 182 }
 183
 184 // Add paths e.g. from the PATH environment variable
 185 void wxPathList::AddEnvList (const wxString& envVariable)
 186 {
 187   static const wxChar PATH_TOKS[] =
 188 #ifdef __WINDOWS__
 189         wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 190 #else
 191         wxT(" :;");
 192 #endif
 193
 194   wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 195   if (val && *val)
 196     {
 197       wxChar *s = copystring (val);
 198       wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 199
 200       if (token)
 201       {
 202           Add (copystring (token));
 203           while (token)
 204           {
 205               if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
 206                   Add (wxString(token));
 207           }
 208       }
 209
 210       // suppress warning about unused variable save_ptr when wxStrtok() is a
 211       // macro which throws away its third argument
 212       save_ptr = token;
 213
 214       delete [] s;
 215     }
 216 }
 217
 218 // Given a full filename (with path), ensure that that file can
 219 // be accessed again USING FILENAME ONLY by adding the path
 220 // to the list if not already there.
 221 void wxPathList::EnsureFileAccessible (const wxString& path)
 222 {
 223     wxString path_only(wxPathOnly(path));
 224     if ( !path_only.IsEmpty() )
 225     {
 226         if ( !Member(path_only) )
 227             Add(path_only);
 228     }
 229 }
 230
 231 bool wxPathList::Member (const wxString& path)
 232 {
 233   for (wxNode * node = First (); node != NULL; node = node->Next ())
 234   {
 235       wxString path2((wxChar *) node->Data ());
 236       if (
 237 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 238       // Case INDEPENDENT
 239           path.CompareTo (path2, wxString::ignoreCase) == 0
 240 #else
 241       // Case sensitive File System
 242           path.CompareTo (path2) == 0
 243 #endif
 244         )
 245         return TRUE;
 246   }
 247   return FALSE;
 248 }
 249
 250 wxString wxPathList::FindValidPath (const wxString& file)
 251 {
 252   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 253     return wxString(wxFileFunctionsBuffer);
 254
 255   wxChar buf[_MAXPATHLEN];
 256   wxStrcpy(buf, wxFileFunctionsBuffer);
 257
 258   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 259   filename = IsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 260
 261   for (wxNode * node = First (); node; node = node->Next ())
 262     {
 263       wxChar *path = (wxChar *) node->Data ();
 264       wxStrcpy (wxFileFunctionsBuffer, path);
 265       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 266       if (ch != wxT('\\') && ch != wxT('/'))
 267         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 268       wxStrcat (wxFileFunctionsBuffer, filename);
 269 #ifdef __WINDOWS__
 270       Unix2DosFilename (wxFileFunctionsBuffer);
 271 #endif
 272       if (wxFileExists (wxFileFunctionsBuffer))
 273       {
 274         return wxString(wxFileFunctionsBuffer);        // Found!
 275       }
 276     }                                // for()
 277
 278   return wxString(wxT(""));                    // Not found
 279 }
 280
 281 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 282 {
 283     wxString f = FindValidPath(file);
 284     if ( wxIsAbsolutePath(f) )
 285         return f;
 286
 287     wxString buf;
 288     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 289
 290     if ( !wxEndsWithPathSeparator(buf) )
 291     {
 292         buf += wxFILE_SEP_PATH;
 293     }
 294     buf += f;
 295
 296     return buf;
 297 }
 298
 299 bool
 300 wxFileExists (const wxString& filename)
 301 {
 302 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 303     // GetFileAttributes can copy with network paths unlike stat()
 304     DWORD ret = ::GetFileAttributes(filename);
 305
 306     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 307 #else
 308     wxStructStat stbuf;
 309     if ( !filename.empty() && wxStat (OS_FILENAME(filename), &stbuf) == 0 )
 310         return TRUE;
 311
 312     return FALSE;
 313 #endif
 314 }
 315
 316 bool
 317 wxIsAbsolutePath (const wxString& filename)
 318 {
 319     if (filename != wxT(""))
 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 #ifdef __WINDOWS__
 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   size_t len = buffer.Length();
 372   size_t i = len-1;
 373   while (i > 0)
 374   {
 375     if (buffer.GetChar(i) == wxT('.'))
 376     {
 377       buffer = buffer.Left(i);
 378       break;
 379     }
 380     i --;
 381   }
 382 }
 383
 384 // Destructive removal of /./ and /../ stuff
 385 wxChar *wxRealPath (wxChar *path)
 386 {
 387 #ifdef __WXMSW__
 388   static const wxChar SEP = wxT('\\');
 389   Unix2DosFilename(path);
 390 #else
 391   static const wxChar SEP = wxT('/');
 392 #endif
 393   if (path[0] && path[1]) {
 394     /* MATTHEW: special case "/./x" */
 395     wxChar *p;
 396     if (path[2] == SEP && path[1] == wxT('.'))
 397       p = &path[0];
 398     else
 399       p = &path[2];
 400     for (; *p; p++)
 401       {
 402         if (*p == SEP)
 403           {
 404             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 405               {
 406                 wxChar *q;
 407                 for (q = p - 1; q >= path && *q != SEP; q--);
 408                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 409                     && (q - 1 <= path || q[-1] != SEP))
 410                   {
 411                     wxStrcpy (q, p + 3);
 412                     if (path[0] == wxT('\0'))
 413                       {
 414                         path[0] = SEP;
 415                         path[1] = wxT('\0');
 416                       }
 417 #ifdef __WXMSW__
 418                     /* Check that path[2] is NULL! */
 419                     else if (path[1] == wxT(':') && !path[2])
 420                       {
 421                         path[2] = SEP;
 422                         path[3] = wxT('\0');
 423                       }
 424 #endif
 425                     p = q - 1;
 426                   }
 427               }
 428             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 429               wxStrcpy (p, p + 2);
 430           }
 431       }
 432   }
 433   return path;
 434 }
 435
 436 // Must be destroyed
 437 wxChar *wxCopyAbsolutePath(const wxString& filename)
 438 {
 439   if (filename == wxT(""))
 440     return (wxChar *) NULL;
 441
 442   if (! IsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 443     wxChar  buf[_MAXPATHLEN];
 444     buf[0] = wxT('\0');
 445     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 446     wxChar ch = buf[wxStrlen(buf) - 1];
 447 #ifdef __WXMSW__
 448     if (ch != wxT('\\') && ch != wxT('/'))
 449         wxStrcat(buf, wxT("\\"));
 450 #else
 451     if (ch != wxT('/'))
 452         wxStrcat(buf, wxT("/"));
 453 #endif
 454     wxStrcat(buf, wxFileFunctionsBuffer);
 455     return copystring( wxRealPath(buf) );
 456   }
 457   return copystring( wxFileFunctionsBuffer );
 458 }
 459
 460 /*-
 461  Handles:
 462    ~/ => home dir
 463    ~user/ => user's home dir
 464    If the environment variable a = "foo" and b = "bar" then:
 465    Unix:
 466         $a        =>        foo
 467         $a$b        =>        foobar
 468         $a.c        =>        foo.c
 469         xxx$a        =>        xxxfoo
 470         ${a}!        =>        foo!
 471         $(b)!        =>        bar!
 472         \$a        =>        \$a
 473    MSDOS:
 474         $a        ==>        $a
 475         $(a)        ==>        foo
 476         $(a)$b        ==>        foo$b
 477         $(a)$(b)==>        foobar
 478         test.$$        ==>        test.$$
 479  */
 480
 481 /* input name in name, pathname output to buf. */
 482
 483 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 484 {
 485     register wxChar *d, *s, *nm;
 486     wxChar          lnm[_MAXPATHLEN];
 487     int             q;
 488
 489     // Some compilers don't like this line.
 490 //    const wxChar    trimchars[] = wxT("\n \t");
 491
 492     wxChar      trimchars[4];
 493     trimchars[0] = wxT('\n');
 494     trimchars[1] = wxT(' ');
 495     trimchars[2] = wxT('\t');
 496     trimchars[3] = 0;
 497
 498 #ifdef __WXMSW__
 499      const wxChar     SEP = wxT('\\');
 500 #else
 501      const wxChar     SEP = wxT('/');
 502 #endif
 503     buf[0] = wxT('\0');
 504     if (name == NULL || *name == wxT('\0'))
 505         return buf;
 506     nm = copystring(name); // Make a scratch copy
 507     wxChar *nm_tmp = nm;
 508
 509     /* Skip leading whitespace and cr */
 510     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 511         nm++;
 512     /* And strip off trailing whitespace and cr */
 513     s = nm + (q = wxStrlen(nm)) - 1;
 514     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 515         *s = wxT('\0');
 516
 517     s = nm;
 518     d = lnm;
 519 #ifdef __WXMSW__
 520     q = FALSE;
 521 #else
 522     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 523 #endif
 524
 525     /* Expand inline environment variables */
 526 #ifdef __VISAGECPP__
 527     while (*d)
 528     {
 529       *d++ = *s;
 530       if(*s == wxT('\\'))
 531       {
 532         *(d - 1) = *++s;
 533         if (*d)
 534         {
 535           s++;
 536           continue;
 537         }
 538         else
 539            break;
 540       }
 541       else
 542 #else
 543     while ((*d++ = *s) != 0) {
 544 #  ifndef __WXMSW__
 545         if (*s == wxT('\\')) {
 546             if ((*(d - 1) = *++s)) {
 547                 s++;
 548                 continue;
 549             } else
 550                 break;
 551         } else
 552 #  endif
 553 #endif
 554 #ifdef __WXMSW__
 555         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 556 #else
 557         if (*s++ == wxT('$'))
 558 #endif
 559         {
 560             register wxChar  *start = d;
 561             register int     braces = (*s == wxT('{') || *s == wxT('('));
 562             register wxChar  *value;
 563             while ((*d++ = *s) != 0)
 564                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 565                     break;
 566                 else
 567                     s++;
 568             *--d = 0;
 569             value = wxGetenv(braces ? start + 1 : start);
 570             if (value) {
 571                 for ((d = start - 1); (*d++ = *value++) != 0;);
 572                 d--;
 573                 if (braces && *s)
 574                     s++;
 575             }
 576         }
 577     }
 578
 579     /* Expand ~ and ~user */
 580     nm = lnm;
 581     if (nm[0] == wxT('~') && !q)
 582     {
 583         /* prefix ~ */
 584         if (nm[1] == SEP || nm[1] == 0)
 585         {        /* ~/filename */
 586         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 587             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 588                 if (*++nm)
 589                     nm++;
 590             }
 591         } else
 592         {                /* ~user/filename */
 593             register wxChar  *nnm;
 594             register wxChar  *home;
 595             for (s = nm; *s && *s != SEP; s++);
 596             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 597             was_sep = (*s == SEP);
 598             nnm = *s ? s + 1 : s;
 599             *s = 0;
 600         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 601             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 602                if (was_sep) /* replace only if it was there: */
 603                    *s = SEP;
 604                 s = NULL;
 605             } else {
 606                 nm = nnm;
 607                 s = home;
 608             }
 609         }
 610     }
 611
 612     d = buf;
 613     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 614         /* Copy home dir */
 615         while (wxT('\0') != (*d++ = *s++))
 616           /* loop */;
 617         // Handle root home
 618         if (d - 1 > buf && *(d - 2) != SEP)
 619           *(d - 1) = SEP;
 620     }
 621     s = nm;
 622     while ((*d++ = *s++) != 0);
 623     delete[] nm_tmp; // clean up alloc
 624     /* Now clean up the buffer */
 625     return wxRealPath(buf);
 626 }
 627
 628 /* Contract Paths to be build upon an environment variable
 629    component:
 630
 631    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 632
 633    The call wxExpandPath can convert these back!
 634  */
 635 wxChar *
 636 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 637 {
 638   static wxChar dest[_MAXPATHLEN];
 639
 640   if (filename == wxT(""))
 641     return (wxChar *) NULL;
 642
 643   wxStrcpy (dest, WXSTRINGCAST filename);
 644 #ifdef __WXMSW__
 645   Unix2DosFilename(dest);
 646 #endif
 647
 648   // Handle environment
 649   const wxChar *val = (const wxChar *) NULL;
 650   wxChar *tcp = (wxChar *) NULL;
 651   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 652      (tcp = wxStrstr (dest, val)) != NULL)
 653     {
 654         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 655         *tcp++ = wxT('$');
 656         *tcp++ = wxT('{');
 657         wxStrcpy (tcp, WXSTRINGCAST envname);
 658         wxStrcat (tcp, wxT("}"));
 659         wxStrcat (tcp, wxFileFunctionsBuffer);
 660     }
 661
 662   // Handle User's home (ignore root homes!)
 663   size_t len = 0;
 664   if ((val = wxGetUserHome (user)) != NULL &&
 665       (len = wxStrlen(val)) > 2 &&
 666       wxStrncmp(dest, val, len) == 0)
 667     {
 668       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 669       if (user != wxT(""))
 670              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 671 #ifdef __WXMSW__
 672 //      strcat(wxFileFunctionsBuffer, "\\");
 673 #else
 674 //      strcat(wxFileFunctionsBuffer, "/");
 675 #endif
 676       wxStrcat(wxFileFunctionsBuffer, dest + len);
 677       wxStrcpy (dest, wxFileFunctionsBuffer);
 678     }
 679
 680   return dest;
 681 }
 682
 683 // Return just the filename, not the path
 684 // (basename)
 685 wxChar *wxFileNameFromPath (wxChar *path)
 686 {
 687     if (path)
 688     {
 689         register wxChar *tcp;
 690
 691         tcp = path + wxStrlen (path);
 692         while (--tcp >= path)
 693         {
 694 #if defined(__WXMAC__) && !defined(__DARWIN__)
 695             // Classic or Carbon CodeWarrior like
 696             // Carbon with Apple DevTools is Unix like
 697             if (*tcp == wxT(':'))
 698                 return tcp + 1;
 699 #else
 700             // Unix like or Windows
 701             if (*tcp == wxT('/') || *tcp == wxT('\\'))
 702                 return tcp + 1;
 703 #endif
 704 #ifdef __VMS__
 705             if (*tcp == wxT(':') || *tcp == wxT(']'))
 706                 return tcp + 1;
 707 #endif
 708         } /* while */
 709 #if defined(__WXMSW__) || defined(__WXPM__)
 710         // MSDOS like
 711         if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 712             return path + 2;
 713 #endif
 714     }
 715     return path;
 716 }
 717
 718 wxString wxFileNameFromPath (const wxString& path1)
 719 {
 720     if (path1 != wxT(""))
 721     {
 722         wxChar *path = WXSTRINGCAST path1 ;
 723         register wxChar *tcp;
 724
 725         tcp = path + wxStrlen (path);
 726         while (--tcp >= path)
 727         {
 728 #if defined(__WXMAC__) && !defined(__DARWIN__)
 729             // Classic or Carbon CodeWarrior like
 730             // Carbon with Apple DevTools is Unix like
 731             if (*tcp == wxT(':') )
 732                 return wxString(tcp + 1);
 733 #else
 734             // Unix like or Windows
 735             if (*tcp == wxT('/') || *tcp == wxT('\\'))
 736                 return wxString(tcp + 1);
 737 #endif
 738 #ifdef __VMS__
 739             if (*tcp == wxT(':') || *tcp == wxT(']'))
 740                 return wxString(tcp + 1);
 741 #endif
 742         } /* while */
 743 #if defined(__WXMSW__) || defined(__WXPM__)
 744         // MSDOS like
 745         if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 746             return wxString(path + 2);
 747 #endif
 748     }
 749     // Yes, this should return the path, not an empty string, otherwise
 750     // we get "thing.txt" -> "".
 751     return path1;
 752 }
 753
 754 // Return just the directory, or NULL if no directory
 755 wxChar *
 756 wxPathOnly (wxChar *path)
 757 {
 758     if (path && *path)
 759     {
 760         static wxChar buf[_MAXPATHLEN];
 761
 762         // Local copy
 763         wxStrcpy (buf, path);
 764
 765         int l = wxStrlen(path);
 766         int i = l - 1;
 767
 768         // Search backward for a backward or forward slash
 769         while (i > -1)
 770         {
 771 #if defined(__WXMAC__) && !defined(__DARWIN__)
 772             // Classic or Carbon CodeWarrior like
 773             // Carbon with Apple DevTools is Unix like
 774             if (path[i] == wxT(':') )
 775             {
 776                 buf[i] = 0;
 777                 return buf;
 778             }
 779 #else
 780             // Unix like or Windows
 781             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 782             {
 783                 buf[i] = 0;
 784                 return buf;
 785             }
 786 #endif
 787 #ifdef __VMS__
 788             if (path[i] == wxT(']'))
 789             {
 790                 buf[i+1] = 0;
 791                 return buf;
 792             }
 793 #endif
 794             i --;
 795         }
 796
 797 #if defined(__WXMSW__) || defined(__WXPM__)
 798         // Try Drive specifier
 799         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 800         {
 801             // A:junk --> A:. (since A:.\junk Not A:\junk)
 802             buf[2] = wxT('.');
 803             buf[3] = wxT('\0');
 804             return buf;
 805         }
 806 #endif
 807     }
 808     return (wxChar *) NULL;
 809 }
 810
 811 // Return just the directory, or NULL if no directory
 812 wxString wxPathOnly (const wxString& path)
 813 {
 814     if (path != wxT(""))
 815     {
 816         wxChar buf[_MAXPATHLEN];
 817
 818         // Local copy
 819         wxStrcpy (buf, WXSTRINGCAST path);
 820
 821         int l = path.Length();
 822         int i = l - 1;
 823
 824         // Search backward for a backward or forward slash
 825         while (i > -1)
 826         {
 827 #if defined(__WXMAC__) && !defined(__DARWIN__)
 828             // Classic or Carbon CodeWarrior like
 829             // Carbon with Apple DevTools is Unix like
 830             if (path[i] == wxT(':') )
 831             {
 832                 buf[i] = 0;
 833                 return wxString(buf);
 834             }
 835 #else
 836             // Unix like or Windows
 837             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 838             {
 839                 buf[i] = 0;
 840                 return wxString(buf);
 841             }
 842 #endif
 843 #ifdef __VMS__
 844             if (path[i] == wxT(']'))
 845             {
 846                 buf[i+1] = 0;
 847                 return wxString(buf);
 848             }
 849 #endif
 850             i --;
 851         }
 852
 853 #if defined(__WXMSW__) || defined(__WXPM__)
 854         // Try Drive specifier
 855         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 856         {
 857             // A:junk --> A:. (since A:.\junk Not A:\junk)
 858             buf[2] = wxT('.');
 859             buf[3] = wxT('\0');
 860             return wxString(buf);
 861         }
 862 #endif
 863     }
 864     return wxString(wxT(""));
 865 }
 866
 867 // Utility for converting delimiters in DOS filenames to UNIX style
 868 // and back again - or we get nasty problems with delimiters.
 869 // Also, convert to lower case, since case is significant in UNIX.
 870
 871 #if defined(__WXMAC__)
 872 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 873 {
 874 #ifdef __DARWIN__
 875     FSRef theRef;
 876     char  thePath[FILENAME_MAX];
 877
 878     // convert the FSSpec to an FSRef
 879     (void) FSpMakeFSRef( spec, &theRef );
 880     // get the POSIX path associated with the FSRef
 881     (void) FSRefMakePath( &theRef, (UInt8 *)thePath, sizeof(thePath) );
 882
 883     // create path string for return value
 884     wxString result( thePath ) ;
 885 #else
 886     Handle    myPath ;
 887     short     length ;
 888
 889     // get length of path and allocate handle
 890     FSpGetFullPath( spec , &length , &myPath ) ;
 891     ::SetHandleSize( myPath , length + 1 ) ;
 892     ::HLock( myPath ) ;
 893     (*myPath)[length] = 0 ;
 894     if ((length > 0) && ((*myPath)[length-1] == ':'))
 895         (*myPath)[length-1] = 0 ;
 896
 897     // create path string for return value
 898     wxString result( (char*) *myPath ) ;
 899
 900     // free allocated handle
 901     ::HUnlock( myPath ) ;
 902     ::DisposeHandle( myPath ) ;
 903 #endif
 904
 905     return result ;
 906 }
 907
 908 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 909 {
 910 #ifdef __DARWIN__
 911     FSRef theRef;
 912
 913     // get the FSRef associated with the POSIX path
 914     (void) FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
 915     // convert the FSRef to an FSSpec
 916     (void) FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
 917 #else
 918     FSpLocationFromFullPath( strlen(path) , path , spec ) ;
 919 #endif
 920 }
 921
 922 #ifndef __DARWIN__
 923 // Mac file names are POSIX (Unix style) under Darwin
 924 // therefore the conversion functions below are not needed
 925
 926 static char sMacFileNameConversion[ 1000 ] ;
 927
 928 wxString wxMac2UnixFilename (const char *str)
 929 {
 930     char *s = sMacFileNameConversion ;
 931     strcpy( s , str ) ;
 932     if (s)
 933     {
 934         memmove( s+1 , s ,strlen( s ) + 1) ;
 935         if ( *s == ':' )
 936             *s = '.' ;
 937         else
 938             *s = '/' ;
 939
 940         while (*s)
 941         {
 942             if (*s == ':')
 943                 *s = '/';
 944             else
 945                 *s = wxTolower(*s);        // Case INDEPENDENT
 946             s++;
 947         }
 948     }
 949     return wxString(sMacFileNameConversion) ;
 950 }
 951
 952 wxString wxUnix2MacFilename (const char *str)
 953 {
 954     char *s = sMacFileNameConversion ;
 955     strcpy( s , str ) ;
 956     if (s)
 957     {
 958         if ( *s == '.' )
 959         {
 960             // relative path , since it goes on with slash which is translated to a :
 961             memmove( s , s+1 ,strlen( s ) ) ;
 962         }
 963         else if ( *s == '/' )
 964         {
 965             // absolute path -> on mac just start with the drive name
 966             memmove( s , s+1 ,strlen( s ) ) ;
 967         }
 968         else
 969         {
 970             wxASSERT_MSG( 1 , "unkown path beginning" ) ;
 971         }
 972         while (*s)
 973         {
 974             if (*s == '/' || *s == '\\')
 975             {
 976                 // convert any back-directory situations
 977                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
 978                 {
 979                     *s = ':';
 980                     memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
 981                 }
 982                 else
 983                     *s = ':';
 984             }
 985             s++ ;
 986         }
 987     }
 988     return wxString (sMacFileNameConversion) ;
 989 }
 990
 991 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
 992 {
 993     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
 994 }
 995
 996 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
 997 {
 998     wxString var = wxUnix2MacFilename( path ) ;
 999     wxMacFilename2FSSpec( var , spec ) ;
1000 }
1001 #endif // ! __DARWIN__
1002
1003 #endif // __WXMAC__
1004
1005 void
1006 wxDos2UnixFilename (char *s)
1007 {
1008   if (s)
1009     while (*s)
1010       {
1011         if (*s == '\\')
1012           *s = '/';
1013 #ifdef __WXMSW__
1014         else
1015           *s = wxTolower (*s);        // Case INDEPENDENT
1016 #endif
1017         s++;
1018       }
1019 }
1020
1021 void
1022 #if defined(__WXMSW__) || defined(__WXPM__)
1023 wxUnix2DosFilename (wxChar *s)
1024 #else
1025 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1026 #endif
1027 {
1028 // Yes, I really mean this to happen under DOS only! JACS
1029 #if defined(__WXMSW__) || defined(__WXPM__)
1030   if (s)
1031     while (*s)
1032       {
1033         if (*s == wxT('/'))
1034           *s = wxT('\\');
1035         s++;
1036       }
1037 #endif
1038 }
1039
1040 // Concatenate two files to form third
1041 bool
1042 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1043 {
1044   wxString outfile;
1045   if ( !wxGetTempFileName("cat", outfile) )
1046       return FALSE;
1047
1048   FILE *fp1 = (FILE *) NULL;
1049   FILE *fp2 = (FILE *) NULL;
1050   FILE *fp3 = (FILE *) NULL;
1051   // Open the inputs and outputs
1052   if ((fp1 = wxFopen (OS_FILENAME( file1 ), wxT("rb"))) == NULL ||
1053       (fp2 = wxFopen (OS_FILENAME( file2 ), wxT("rb"))) == NULL ||
1054       (fp3 = wxFopen (OS_FILENAME( outfile ), wxT("wb"))) == NULL)
1055     {
1056       if (fp1)
1057         fclose (fp1);
1058       if (fp2)
1059         fclose (fp2);
1060       if (fp3)
1061         fclose (fp3);
1062       return FALSE;
1063     }
1064
1065   int ch;
1066   while ((ch = getc (fp1)) != EOF)
1067     (void) putc (ch, fp3);
1068   fclose (fp1);
1069
1070   while ((ch = getc (fp2)) != EOF)
1071     (void) putc (ch, fp3);
1072   fclose (fp2);
1073
1074   fclose (fp3);
1075   bool result = wxRenameFile(outfile, file3);
1076   return result;
1077 }
1078
1079 // Copy files
1080 bool
1081 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1082 {
1083 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1084     // CopyFile() copies file attributes and modification time too, so use it
1085     // instead of our code if available
1086     //
1087     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1088     return ::CopyFile(file1, file2, !overwrite) != 0;
1089 #elif defined(__WXPM__)
1090     if (::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) == 0)
1091         return TRUE;
1092     else
1093         return FALSE;
1094 #else // !Win32
1095     wxStructStat fbuf;
1096
1097     // get permissions of file1
1098     if ( wxStat(OS_FILENAME(file1), &fbuf) != 0 )
1099     {
1100         // the file probably doesn't exist or we haven't the rights to read
1101         // from it anyhow
1102         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1103                       file1.c_str());
1104         return FALSE;
1105     }
1106
1107     // open file1 for reading
1108     wxFile fileIn(file1, wxFile::read);
1109     if ( !fileIn.IsOpened() )
1110         return FALSE;
1111
1112     // remove file2, if it exists. This is needed for creating
1113     // file2 with the correct permissions in the next step
1114     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1115     {
1116         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1117                       file2.c_str());
1118         return FALSE;
1119     }
1120
1121 #ifdef __UNIX__
1122     // reset the umask as we want to create the file with exactly the same
1123     // permissions as the original one
1124     mode_t oldUmask = umask( 0 );
1125 #endif // __UNIX__
1126
1127     // create file2 with the same permissions than file1 and open it for
1128     // writing
1129     wxFile fileOut;
1130     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1131         return FALSE;
1132
1133 #ifdef __UNIX__
1134     /// restore the old umask
1135     umask(oldUmask);
1136 #endif // __UNIX__
1137
1138     // copy contents of file1 to file2
1139     char buf[4096];
1140     size_t count;
1141     for ( ;; )
1142     {
1143         count = fileIn.Read(buf, WXSIZEOF(buf));
1144         if ( fileIn.Error() )
1145             return FALSE;
1146
1147         // end of file?
1148         if ( !count )
1149             break;
1150
1151         if ( fileOut.Write(buf, count) < count )
1152             return FALSE;
1153     }
1154
1155     // we can expect fileIn to be closed successfully, but we should ensure
1156     // that fileOut was closed as some write errors (disk full) might not be
1157     // detected before doing this
1158     if ( !fileIn.Close() || !fileOut.Close() )
1159         return FALSE;
1160
1161 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1162     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1163     // however
1164     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1165     {
1166         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1167                       file2.c_str());
1168         return FALSE;
1169     }
1170 #endif // OS/2 || Mac
1171
1172     return TRUE;
1173 #endif // __WXMSW__ && __WIN32__
1174 }
1175
1176 bool
1177 wxRenameFile (const wxString& file1, const wxString& file2)
1178 {
1179   // Normal system call
1180   if ( wxRename (file1, file2) == 0 )
1181     return TRUE;
1182
1183   // Try to copy
1184   if (wxCopyFile(file1, file2)) {
1185     wxRemoveFile(file1);
1186     return TRUE;
1187   }
1188   // Give up
1189   return FALSE;
1190 }
1191
1192 bool wxRemoveFile(const wxString& file)
1193 {
1194 #if defined(__VISUALC__) \
1195  || defined(__BORLANDC__) \
1196  || defined(__WATCOMC__) \
1197  || defined(__GNUWIN32__)
1198   int res = wxRemove(file);
1199 #else
1200   int res = unlink(OS_FILENAME(file));
1201 #endif
1202
1203   return res == 0;
1204 }
1205
1206 bool wxMkdir(const wxString& dir, int perm)
1207 {
1208 #if defined(__WXMAC__) && !defined(__UNIX__)
1209   return (mkdir( dir , 0 ) == 0);
1210 #else // !Mac
1211     const wxChar *dirname = dir.c_str();
1212
1213     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1214     // for the GNU compiler
1215 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__) || defined(__WXMICROWIN__)
1216     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1217 #elif defined(__WXPM__)
1218     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1219 #elif defined(__DOS__)
1220   #if defined(__WATCOMC__)
1221     (void)perm;
1222     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1223   #elif defined(__DJGPP__)
1224     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1225   #else
1226     #error "Unsupported DOS compiler!"
1227   #endif
1228 #else  // !MSW, !DOS and !OS/2 VAC++
1229     (void)perm;
1230     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1231 #endif // !MSW/MSW
1232     {
1233         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1234
1235         return FALSE;
1236     }
1237
1238     return TRUE;
1239 #endif // Mac/!Mac
1240 }
1241
1242 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1243 {
1244 #ifdef __VMS__
1245   return FALSE; //to be changed since rmdir exists in VMS7.x
1246 #elif defined(__WXPM__)
1247   return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1248 #else
1249
1250 #ifdef __SALFORDC__
1251   return FALSE; // What to do?
1252 #else
1253   return (wxRmDir(OS_FILENAME(dir)) == 0);
1254 #endif
1255
1256 #endif
1257 }
1258
1259 // does the path exists? (may have or not '/' or '\\' at the end)
1260 bool wxPathExists(const wxChar *pszPathName)
1261 {
1262     wxString strPath(pszPathName);
1263
1264 #ifdef __WINDOWS__
1265     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1266     // so remove all trailing backslashes from the path - but don't do this for
1267     // the pathes "d:\" (which are different from "d:") nor for just "\"
1268     while ( wxEndsWithPathSeparator(strPath) )
1269     {
1270         size_t len = strPath.length();
1271         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1272             break;
1273
1274         strPath.Truncate(len - 1);
1275     }
1276 #endif // __WINDOWS__
1277
1278 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1279     // stat() can't cope with network paths
1280     DWORD ret = ::GetFileAttributes(strPath);
1281
1282     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1283 #else // !__WIN32__
1284
1285     wxStructStat st;
1286 #ifndef __VISAGECPP__
1287     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1288         ((st.st_mode & S_IFMT) == S_IFDIR);
1289 #else
1290     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1291     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1292         (st.st_mode == S_IFDIR);
1293 #endif
1294
1295 #endif // __WIN32__/!__WIN32__
1296 }
1297
1298 // Get a temporary filename, opening and closing the file.
1299 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1300 {
1301     wxString filename = wxFileName::CreateTempFileName(prefix);
1302     if ( filename.empty() )
1303         return NULL;
1304
1305     if ( buf )
1306         wxStrcpy(buf, filename);
1307     else
1308         buf = copystring(filename);
1309
1310     return buf;
1311 }
1312
1313 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1314 {
1315     buf = wxFileName::CreateTempFileName(prefix);
1316
1317     return !buf.empty();
1318 }
1319
1320 // Get first file name matching given wild card.
1321
1322 static wxDir *gs_dir = NULL;
1323 static wxString gs_dirPath;
1324
1325 wxString wxFindFirstFile(const wxChar *spec, int flags)
1326 {
1327     gs_dirPath = wxPathOnly(spec);
1328     if ( gs_dirPath.IsEmpty() )
1329         gs_dirPath = wxT(".");
1330     if ( gs_dirPath.Last() != wxFILE_SEP_PATH )
1331         gs_dirPath << wxFILE_SEP_PATH;
1332
1333     if (gs_dir)
1334         delete gs_dir;
1335     gs_dir = new wxDir(gs_dirPath);
1336
1337     if ( !gs_dir->IsOpened() )
1338     {
1339         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1340         return wxEmptyString;
1341     }
1342
1343     int dirFlags = 0;
1344     switch (flags)
1345     {
1346         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1347         case wxFILE: dirFlags = wxDIR_FILES; break;
1348         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1349     }
1350
1351     wxString result;
1352     gs_dir->GetFirst(&result, wxFileNameFromPath(spec), dirFlags);
1353     if ( result.IsEmpty() )
1354     {
1355         wxDELETE(gs_dir);
1356         return result;
1357     }
1358
1359     return gs_dirPath + result;
1360 }
1361
1362 wxString wxFindNextFile()
1363 {
1364     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1365
1366     wxString result;
1367     gs_dir->GetNext(&result);
1368
1369     if ( result.IsEmpty() )
1370     {
1371         wxDELETE(gs_dir);
1372         return result;
1373     }
1374
1375     return gs_dirPath + result;
1376 }
1377
1378
1379 // Get current working directory.
1380 // If buf is NULL, allocates space using new, else
1381 // copies into buf.
1382 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1383 {
1384     if ( !buf )
1385     {
1386         buf = new wxChar[sz + 1];
1387     }
1388
1389     bool ok;
1390
1391     // for the compilers which have Unicode version of _getcwd(), call it
1392     // directly, for the others call the ANSI version and do the translation
1393 #if wxUSE_UNICODE
1394     #ifdef HAVE_WGETCWD
1395         ok = _wgetcwd(buf, sz) != NULL;
1396     #else // !HAVE_WGETCWD
1397         wxCharBuffer cbuf(sz);
1398     #endif
1399 #endif //
1400
1401 #if !wxUSE_UNICODE || !defined(HAVE_WGETCWD)
1402     #ifdef _MSC_VER
1403         ok = _getcwd(buf, sz) != NULL;
1404     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1405         FSSpec cwdSpec ;
1406         FCBPBRec pb;
1407         OSErr error;
1408         Str255  fileName ;
1409         pb.ioNamePtr = (StringPtr) &fileName;
1410         pb.ioVRefNum = 0;
1411         pb.ioRefNum = LMGetCurApRefNum();
1412         pb.ioFCBIndx = 0;
1413         error = PBGetFCBInfoSync(&pb);
1414         if ( error == noErr )
1415         {
1416             cwdSpec.vRefNum = pb.ioFCBVRefNum;
1417             cwdSpec.parID = pb.ioFCBParID;
1418             cwdSpec.name[0] = 0 ;
1419             wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1420
1421             strcpy( buf , res ) ;
1422             buf[res.length()]=0 ;
1423
1424             ok = TRUE;
1425         }
1426         else
1427         {
1428             ok = FALSE;
1429         }
1430     #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1431         APIRET rc;
1432         rc = ::DosQueryCurrentDir( 0 // current drive
1433                                   ,buf
1434                                   ,(PULONG)&sz
1435                                  );
1436         ok = rc != 0;
1437     #else // !Win32/VC++ !Mac !OS2
1438         ok = getcwd(buf, sz) != NULL;
1439     #endif // platform
1440 #endif // !wxUSE_UNICODE || !HAVE_WGETCWD
1441
1442     if ( !ok )
1443     {
1444         wxLogSysError(_("Failed to get the working directory"));
1445
1446         // VZ: the old code used to return "." on error which didn't make any
1447         //     sense at all to me - empty string is a better error indicator
1448         //     (NULL might be even better but I'm afraid this could lead to
1449         //     problems with the old code assuming the return is never NULL)
1450         buf[0] = _T('\0');
1451     }
1452     else // ok, but we might need to massage the path into the right format
1453     {
1454 #ifdef __DJGPP__
1455         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1456         //     with / deliminers. We don't like that.
1457         for (wxChar *ch = buf; *ch; ch++)
1458         {
1459             if (*ch == wxT('/'))
1460                 *ch = wxT('\\');
1461         }
1462 #endif // __DJGPP__
1463
1464 #ifdef __CYGWIN__
1465         // another example of DOS/Unix mix (Cygwin)
1466         wxString pathUnix = buf;
1467         cygwin_conv_to_full_win32_path(pathUnix, buf);
1468 #endif // __CYGWIN__
1469
1470         // finally convert the result to Unicode if needed
1471 #if wxUSE_UNICODE && !defined(HAVE_WGETCWD)
1472         wxConvFile.MB2WC(buf, cbuf, sz);
1473 #endif // wxUSE_UNICODE
1474     }
1475
1476     return buf;
1477 }
1478
1479 wxString wxGetCwd()
1480 {
1481     wxString str;
1482
1483     // we can't create wxStringBuffer object inline: Sun CC generates buggy
1484     // code in this case!
1485     {
1486         wxStringBuffer buf(str, _MAXPATHLEN);
1487         wxGetWorkingDirectory(buf, _MAXPATHLEN);
1488     }
1489
1490     return str;
1491 }
1492
1493 bool wxSetWorkingDirectory(const wxString& d)
1494 {
1495 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1496   return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1497 #elif defined(__WXPM__)
1498   return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1499 #elif defined(__WINDOWS__)
1500
1501 #ifdef __WIN32__
1502   return (bool)(SetCurrentDirectory(d) != 0);
1503 #else
1504   // Must change drive, too.
1505   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1506   if (isDriveSpec)
1507   {
1508     wxChar firstChar = d[0];
1509
1510     // To upper case
1511     if (firstChar > 90)
1512       firstChar = firstChar - 32;
1513
1514     // To a drive number
1515     unsigned int driveNo = firstChar - 64;
1516     if (driveNo > 0)
1517     {
1518        unsigned int noDrives;
1519        _dos_setdrive(driveNo, &noDrives);
1520     }
1521   }
1522   bool success = (chdir(WXSTRINGCAST d) == 0);
1523
1524   return success;
1525 #endif
1526
1527 #endif
1528 }
1529
1530 // Get the OS directory if appropriate (such as the Windows directory).
1531 // On non-Windows platform, probably just return the empty string.
1532 wxString wxGetOSDirectory()
1533 {
1534 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1535     wxChar buf[256];
1536     GetWindowsDirectory(buf, 256);
1537     return wxString(buf);
1538 #else
1539     return wxEmptyString;
1540 #endif
1541 }
1542
1543 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1544 {
1545     size_t len = wxStrlen(pszFileName);
1546
1547     return len && wxIsPathSeparator(pszFileName[len - 1]);
1548 }
1549
1550 // find a file in a list of directories, returns false if not found
1551 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1552 {
1553     // we assume that it's not empty
1554     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1555                  _T("empty file name in wxFindFileInPath"));
1556
1557     // skip path separator in the beginning of the file name if present
1558     if ( wxIsPathSeparator(*pszFile) )
1559         pszFile++;
1560
1561     // copy the path (strtok will modify it)
1562     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1563     wxStrcpy(szPath, pszPath);
1564
1565     wxString strFile;
1566     wxChar *pc, *save_ptr;
1567     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1568           pc != NULL;
1569           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1570     {
1571         // search for the file in this directory
1572         strFile = pc;
1573         if ( !wxEndsWithPathSeparator(pc) )
1574             strFile += wxFILE_SEP_PATH;
1575         strFile += pszFile;
1576
1577         if ( FileExists(strFile) ) {
1578             *pStr = strFile;
1579             break;
1580         }
1581     }
1582
1583     // suppress warning about unused variable save_ptr when wxStrtok() is a
1584     // macro which throws away its third argument
1585     save_ptr = pc;
1586
1587     delete [] szPath;
1588
1589     return pc != NULL;  // if true => we breaked from the loop
1590 }
1591
1592 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1593                              wxString *pstrPath,
1594                              wxString *pstrName,
1595                              wxString *pstrExt)
1596 {
1597     // it can be empty, but it shouldn't be NULL
1598     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1599
1600     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1601 }
1602
1603 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1604 {
1605     wxStructStat buf;
1606
1607     wxStat(filename.fn_str(), &buf);
1608     return buf.st_mtime;
1609 }
1610
1611
1612 //------------------------------------------------------------------------
1613 // wild character routines
1614 //------------------------------------------------------------------------
1615
1616 bool wxIsWild( const wxString& pattern )
1617 {
1618   wxString tmp = pattern;
1619   wxChar *pat = WXSTRINGCAST(tmp);
1620     while (*pat) {
1621         switch (*pat++) {
1622         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1623             return TRUE;
1624         case wxT('\\'):
1625             if (!*pat++)
1626                 return FALSE;
1627         }
1628     }
1629     return FALSE;
1630 };
1631
1632 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1633
1634 #if defined(HAVE_FNMATCH_H)
1635 {
1636 // this probably won't work well for multibyte chars in Unicode mode?
1637    if(dot_special)
1638       return fnmatch(pat.fn_str(), text.fn_str(), FNM_PERIOD) == 0;
1639    else
1640       return fnmatch(pat.fn_str(), text.fn_str(), 0) == 0;
1641 }
1642 #else
1643
1644 // #pragma error Broken implementation of wxMatchWild() -- needs fixing!
1645
1646    /*
1647     * WARNING: this code is broken!
1648     */
1649 {
1650   wxString tmp1 = pat;
1651   wxChar *pattern = WXSTRINGCAST(tmp1);
1652   wxString tmp2 = text;
1653   wxChar *str = WXSTRINGCAST(tmp2);
1654     wxChar c;
1655     wxChar *cp;
1656     bool done = FALSE, ret_code, ok;
1657     // Below is for vi fans
1658     const wxChar OB = wxT('{'), CB = wxT('}');
1659
1660     // dot_special means '.' only matches '.'
1661     if (dot_special && *str == wxT('.') && *pattern != *str)
1662         return FALSE;
1663
1664     while ((*pattern != wxT('\0')) && (!done)
1665     && (((*str==wxT('\0'))&&((*pattern==OB)||(*pattern==wxT('*'))))||(*str!=wxT('\0')))) {
1666         switch (*pattern) {
1667         case wxT('\\'):
1668             pattern++;
1669             if (*pattern != wxT('\0'))
1670                 pattern++;
1671             break;
1672         case wxT('*'):
1673             pattern++;
1674             ret_code = FALSE;
1675             while ((*str!=wxT('\0'))
1676             && ((ret_code=wxMatchWild(pattern, str++, FALSE)) == 0))
1677                 /*loop*/;
1678             if (ret_code) {
1679                 while (*str != wxT('\0'))
1680                     str++;
1681                 while (*pattern != wxT('\0'))
1682                     pattern++;
1683             }
1684             break;
1685         case wxT('['):
1686             pattern++;
1687           repeat:
1688             if ((*pattern == wxT('\0')) || (*pattern == wxT(']'))) {
1689                 done = TRUE;
1690                 break;
1691             }
1692             if (*pattern == wxT('\\')) {
1693                 pattern++;
1694                 if (*pattern == wxT('\0')) {
1695                     done = TRUE;
1696                     break;
1697                 }
1698             }
1699             if (*(pattern + 1) == wxT('-')) {
1700                 c = *pattern;
1701                 pattern += 2;
1702                 if (*pattern == wxT(']')) {
1703                     done = TRUE;
1704                     break;
1705                 }
1706                 if (*pattern == wxT('\\')) {
1707                     pattern++;
1708                     if (*pattern == wxT('\0')) {
1709                         done = TRUE;
1710                         break;
1711                     }
1712                 }
1713                 if ((*str < c) || (*str > *pattern)) {
1714                     pattern++;
1715                     goto repeat;
1716                 }
1717             } else if (*pattern != *str) {
1718                 pattern++;
1719                 goto repeat;
1720             }
1721             pattern++;
1722             while ((*pattern != wxT(']')) && (*pattern != wxT('\0'))) {
1723                 if ((*pattern == wxT('\\')) && (*(pattern + 1) != wxT('\0')))
1724                     pattern++;
1725                 pattern++;
1726             }
1727             if (*pattern != wxT('\0')) {
1728                 pattern++, str++;
1729             }
1730             break;
1731         case wxT('?'):
1732             pattern++;
1733             str++;
1734             break;
1735         case OB:
1736             pattern++;
1737             while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1738                 cp = str;
1739                 ok = TRUE;
1740                 while (ok && (*cp != wxT('\0')) && (*pattern != wxT('\0'))
1741                 &&  (*pattern != wxT(',')) && (*pattern != CB)) {
1742                     if (*pattern == wxT('\\'))
1743                         pattern++;
1744                     ok = (*pattern++ == *cp++);
1745                 }
1746                 if (*pattern == wxT('\0')) {
1747                     ok = FALSE;
1748                     done = TRUE;
1749                     break;
1750                 } else if (ok) {
1751                     str = cp;
1752                     while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1753                         if (*++pattern == wxT('\\')) {
1754                             if (*++pattern == CB)
1755                                 pattern++;
1756                         }
1757                     }
1758                 } else {
1759                     while (*pattern!=CB && *pattern!=wxT(',') && *pattern!=wxT('\0')) {
1760                         if (*++pattern == wxT('\\')) {
1761                             if (*++pattern == CB || *pattern == wxT(','))
1762                                 pattern++;
1763                         }
1764                     }
1765                 }
1766                 if (*pattern != wxT('\0'))
1767                     pattern++;
1768             }
1769             break;
1770         default:
1771             if (*str == *pattern) {
1772                 str++, pattern++;
1773             } else {
1774                 done = TRUE;
1775             }
1776         }
1777     }
1778     while (*pattern == wxT('*'))
1779         pattern++;
1780     return ((*str == wxT('\0')) && (*pattern == wxT('\0')));
1781 };
1782
1783 #endif
1784
1785 #ifdef __VISUALC__
1786     #pragma warning(default:4706)   // assignment within conditional expression
1787 #endif // VC++
1788
1789 //------------------------------------------------------------------------
1790 // Missing functions in Unicode for Win9x
1791 //------------------------------------------------------------------------
1792
1793 // NB: MSLU only covers Win32 API, it doesn't provide Unicode implementation of
1794 //     libc functions. Unfortunately, some of MSVCRT wchar_t functions
1795 //     (e.g. _wopen) don't work on Windows 9x, so we have to workaround it
1796 //     by calling the char version. We still want to use wchar_t version on
1797 //     NT/2000/XP, though, because they allow for Unicode file names.
1798 #if wxUSE_UNICODE_MSLU
1799
1800     #if defined( __VISUALC__ ) \
1801         || ( defined(__MINGW32__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
1802         || ( defined(__MWERKS__) && defined(__WXMSW__) )
1803     WXDLLEXPORT int wxOpen(const wxChar *name, int flags, int mode)
1804     {
1805         if ( wxGetOsVersion() == wxWINDOWS_NT )
1806             return _wopen(name, flags, mode);
1807         else
1808             return _open(wxConvFile.cWX2MB(name), flags, mode);
1809     }
1810     #endif
1811
1812 #endif // wxUSE_UNICODE_MSLU