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         #include <sys/cygwin.h>
 123         #include <wchar.h>
 124         #ifndef __TWIN32__
 125             #include <sys/unistd.h>
 126         #endif
 127     #endif // __GNUWIN32__
 128 #endif // __WINDOWS__
 129
 130 // TODO: Borland probably has _wgetcwd as well?
 131 #ifdef _MSC_VER
 132     #define HAVE_WGETCWD
 133 #endif
 134
 135 // ----------------------------------------------------------------------------
 136 // constants
 137 // ----------------------------------------------------------------------------
 138
 139 #ifndef _MAXPATHLEN
 140     #define _MAXPATHLEN 1024
 141 #endif
 142
 143 extern wxChar *wxBuffer;
 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
 304     DWORD ret = ::GetFileAttributes(filename);
 305     if ( ret == (DWORD)-1 )
 306     {
 307         wxLogLastError(_T("GetFileAttributes"));
 308
 309         return FALSE;
 310     }
 311
 312     return !(ret & FILE_ATTRIBUTE_DIRECTORY);
 313 #else
 314     wxStructStat stbuf;
 315     if ( !filename.empty() && wxStat (OS_FILENAME(filename), &stbuf) == 0 )
 316         return TRUE;
 317
 318     return FALSE;
 319 #endif
 320 }
 321
 322 bool
 323 wxIsAbsolutePath (const wxString& filename)
 324 {
 325     if (filename != wxT(""))
 326     {
 327 #if defined(__WXMAC__) && !defined(__DARWIN__)
 328         // Classic or Carbon CodeWarrior like
 329         // Carbon with Apple DevTools is Unix like
 330
 331         // This seems wrong to me, but there is no fix. since
 332         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 333         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 334         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 335             return TRUE ;
 336 #else
 337         // Unix like or Windows
 338         if (filename[0] == wxT('/'))
 339             return TRUE;
 340 #endif
 341 #ifdef __VMS__
 342         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 343             return TRUE;
 344 #endif
 345 #ifdef __WINDOWS__
 346         // MSDOS like
 347         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 348             return TRUE;
 349 #endif
 350     }
 351     return FALSE ;
 352 }
 353
 354 /*
 355  * Strip off any extension (dot something) from end of file,
 356  * IF one exists. Inserts zero into buffer.
 357  *
 358  */
 359
 360 void wxStripExtension(wxChar *buffer)
 361 {
 362   int len = wxStrlen(buffer);
 363   int i = len-1;
 364   while (i > 0)
 365   {
 366     if (buffer[i] == wxT('.'))
 367     {
 368       buffer[i] = 0;
 369       break;
 370     }
 371     i --;
 372   }
 373 }
 374
 375 void wxStripExtension(wxString& buffer)
 376 {
 377   size_t len = buffer.Length();
 378   size_t i = len-1;
 379   while (i > 0)
 380   {
 381     if (buffer.GetChar(i) == wxT('.'))
 382     {
 383       buffer = buffer.Left(i);
 384       break;
 385     }
 386     i --;
 387   }
 388 }
 389
 390 // Destructive removal of /./ and /../ stuff
 391 wxChar *wxRealPath (wxChar *path)
 392 {
 393 #ifdef __WXMSW__
 394   static const wxChar SEP = wxT('\\');
 395   Unix2DosFilename(path);
 396 #else
 397   static const wxChar SEP = wxT('/');
 398 #endif
 399   if (path[0] && path[1]) {
 400     /* MATTHEW: special case "/./x" */
 401     wxChar *p;
 402     if (path[2] == SEP && path[1] == wxT('.'))
 403       p = &path[0];
 404     else
 405       p = &path[2];
 406     for (; *p; p++)
 407       {
 408         if (*p == SEP)
 409           {
 410             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 411               {
 412                 wxChar *q;
 413                 for (q = p - 1; q >= path && *q != SEP; q--);
 414                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 415                     && (q - 1 <= path || q[-1] != SEP))
 416                   {
 417                     wxStrcpy (q, p + 3);
 418                     if (path[0] == wxT('\0'))
 419                       {
 420                         path[0] = SEP;
 421                         path[1] = wxT('\0');
 422                       }
 423 #ifdef __WXMSW__
 424                     /* Check that path[2] is NULL! */
 425                     else if (path[1] == wxT(':') && !path[2])
 426                       {
 427                         path[2] = SEP;
 428                         path[3] = wxT('\0');
 429                       }
 430 #endif
 431                     p = q - 1;
 432                   }
 433               }
 434             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 435               wxStrcpy (p, p + 2);
 436           }
 437       }
 438   }
 439   return path;
 440 }
 441
 442 // Must be destroyed
 443 wxChar *wxCopyAbsolutePath(const wxString& filename)
 444 {
 445   if (filename == wxT(""))
 446     return (wxChar *) NULL;
 447
 448   if (! IsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 449     wxChar  buf[_MAXPATHLEN];
 450     buf[0] = wxT('\0');
 451     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 452     wxChar ch = buf[wxStrlen(buf) - 1];
 453 #ifdef __WXMSW__
 454     if (ch != wxT('\\') && ch != wxT('/'))
 455         wxStrcat(buf, wxT("\\"));
 456 #else
 457     if (ch != wxT('/'))
 458         wxStrcat(buf, wxT("/"));
 459 #endif
 460     wxStrcat(buf, wxFileFunctionsBuffer);
 461     return copystring( wxRealPath(buf) );
 462   }
 463   return copystring( wxFileFunctionsBuffer );
 464 }
 465
 466 /*-
 467  Handles:
 468    ~/ => home dir
 469    ~user/ => user's home dir
 470    If the environment variable a = "foo" and b = "bar" then:
 471    Unix:
 472         $a        =>        foo
 473         $a$b        =>        foobar
 474         $a.c        =>        foo.c
 475         xxx$a        =>        xxxfoo
 476         ${a}!        =>        foo!
 477         $(b)!        =>        bar!
 478         \$a        =>        \$a
 479    MSDOS:
 480         $a        ==>        $a
 481         $(a)        ==>        foo
 482         $(a)$b        ==>        foo$b
 483         $(a)$(b)==>        foobar
 484         test.$$        ==>        test.$$
 485  */
 486
 487 /* input name in name, pathname output to buf. */
 488
 489 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 490 {
 491     register wxChar *d, *s, *nm;
 492     wxChar          lnm[_MAXPATHLEN];
 493     int             q;
 494
 495     // Some compilers don't like this line.
 496 //    const wxChar    trimchars[] = wxT("\n \t");
 497
 498     wxChar      trimchars[4];
 499     trimchars[0] = wxT('\n');
 500     trimchars[1] = wxT(' ');
 501     trimchars[2] = wxT('\t');
 502     trimchars[3] = 0;
 503
 504 #ifdef __WXMSW__
 505      const wxChar     SEP = wxT('\\');
 506 #else
 507      const wxChar     SEP = wxT('/');
 508 #endif
 509     buf[0] = wxT('\0');
 510     if (name == NULL || *name == wxT('\0'))
 511         return buf;
 512     nm = copystring(name); // Make a scratch copy
 513     wxChar *nm_tmp = nm;
 514
 515     /* Skip leading whitespace and cr */
 516     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 517         nm++;
 518     /* And strip off trailing whitespace and cr */
 519     s = nm + (q = wxStrlen(nm)) - 1;
 520     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 521         *s = wxT('\0');
 522
 523     s = nm;
 524     d = lnm;
 525 #ifdef __WXMSW__
 526     q = FALSE;
 527 #else
 528     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 529 #endif
 530
 531     /* Expand inline environment variables */
 532 #ifdef __VISAGECPP__
 533     while (*d)
 534     {
 535       *d++ = *s;
 536       if(*s == wxT('\\'))
 537       {
 538         *(d - 1) = *++s;
 539         if (*d)
 540         {
 541           s++;
 542           continue;
 543         }
 544         else
 545            break;
 546       }
 547       else
 548 #else
 549     while ((*d++ = *s) != 0) {
 550 #  ifndef __WXMSW__
 551         if (*s == wxT('\\')) {
 552             if ((*(d - 1) = *++s)) {
 553                 s++;
 554                 continue;
 555             } else
 556                 break;
 557         } else
 558 #  endif
 559 #endif
 560 #ifdef __WXMSW__
 561         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 562 #else
 563         if (*s++ == wxT('$'))
 564 #endif
 565         {
 566             register wxChar  *start = d;
 567             register int     braces = (*s == wxT('{') || *s == wxT('('));
 568             register wxChar  *value;
 569             while ((*d++ = *s) != 0)
 570                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 571                     break;
 572                 else
 573                     s++;
 574             *--d = 0;
 575             value = wxGetenv(braces ? start + 1 : start);
 576             if (value) {
 577                 for ((d = start - 1); (*d++ = *value++) != 0;);
 578                 d--;
 579                 if (braces && *s)
 580                     s++;
 581             }
 582         }
 583     }
 584
 585     /* Expand ~ and ~user */
 586     nm = lnm;
 587     if (nm[0] == wxT('~') && !q)
 588     {
 589         /* prefix ~ */
 590         if (nm[1] == SEP || nm[1] == 0)
 591         {        /* ~/filename */
 592         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 593             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 594                 if (*++nm)
 595                     nm++;
 596             }
 597         } else
 598         {                /* ~user/filename */
 599             register wxChar  *nnm;
 600             register wxChar  *home;
 601             for (s = nm; *s && *s != SEP; s++);
 602             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 603             was_sep = (*s == SEP);
 604             nnm = *s ? s + 1 : s;
 605             *s = 0;
 606         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 607             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 608                if (was_sep) /* replace only if it was there: */
 609                    *s = SEP;
 610                 s = NULL;
 611             } else {
 612                 nm = nnm;
 613                 s = home;
 614             }
 615         }
 616     }
 617
 618     d = buf;
 619     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 620         /* Copy home dir */
 621         while (wxT('\0') != (*d++ = *s++))
 622           /* loop */;
 623         // Handle root home
 624         if (d - 1 > buf && *(d - 2) != SEP)
 625           *(d - 1) = SEP;
 626     }
 627     s = nm;
 628     while ((*d++ = *s++) != 0);
 629     delete[] nm_tmp; // clean up alloc
 630     /* Now clean up the buffer */
 631     return wxRealPath(buf);
 632 }
 633
 634 /* Contract Paths to be build upon an environment variable
 635    component:
 636
 637    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 638
 639    The call wxExpandPath can convert these back!
 640  */
 641 wxChar *
 642 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 643 {
 644   static wxChar dest[_MAXPATHLEN];
 645
 646   if (filename == wxT(""))
 647     return (wxChar *) NULL;
 648
 649   wxStrcpy (dest, WXSTRINGCAST filename);
 650 #ifdef __WXMSW__
 651   Unix2DosFilename(dest);
 652 #endif
 653
 654   // Handle environment
 655   const wxChar *val = (const wxChar *) NULL;
 656   wxChar *tcp = (wxChar *) NULL;
 657   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 658      (tcp = wxStrstr (dest, val)) != NULL)
 659     {
 660         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 661         *tcp++ = wxT('$');
 662         *tcp++ = wxT('{');
 663         wxStrcpy (tcp, WXSTRINGCAST envname);
 664         wxStrcat (tcp, wxT("}"));
 665         wxStrcat (tcp, wxFileFunctionsBuffer);
 666     }
 667
 668   // Handle User's home (ignore root homes!)
 669   size_t len = 0;
 670   if ((val = wxGetUserHome (user)) != NULL &&
 671       (len = wxStrlen(val)) > 2 &&
 672       wxStrncmp(dest, val, len) == 0)
 673     {
 674       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 675       if (user != wxT(""))
 676              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 677 #ifdef __WXMSW__
 678 //      strcat(wxFileFunctionsBuffer, "\\");
 679 #else
 680 //      strcat(wxFileFunctionsBuffer, "/");
 681 #endif
 682       wxStrcat(wxFileFunctionsBuffer, dest + len);
 683       wxStrcpy (dest, wxFileFunctionsBuffer);
 684     }
 685
 686   return dest;
 687 }
 688
 689 // Return just the filename, not the path
 690 // (basename)
 691 wxChar *wxFileNameFromPath (wxChar *path)
 692 {
 693     if (path)
 694     {
 695         register wxChar *tcp;
 696
 697         tcp = path + wxStrlen (path);
 698         while (--tcp >= path)
 699         {
 700 #if defined(__WXMAC__) && !defined(__DARWIN__)
 701             // Classic or Carbon CodeWarrior like
 702             // Carbon with Apple DevTools is Unix like
 703             if (*tcp == wxT(':'))
 704                 return tcp + 1;
 705 #else
 706             // Unix like or Windows
 707             if (*tcp == wxT('/') || *tcp == wxT('\\'))
 708                 return tcp + 1;
 709 #endif
 710 #ifdef __VMS__
 711             if (*tcp == wxT(':') || *tcp == wxT(']'))
 712                 return tcp + 1;
 713 #endif
 714         } /* while */
 715 #if defined(__WXMSW__) || defined(__WXPM__)
 716         // MSDOS like
 717         if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 718             return path + 2;
 719 #endif
 720     }
 721     return path;
 722 }
 723
 724 wxString wxFileNameFromPath (const wxString& path1)
 725 {
 726     if (path1 != wxT(""))
 727     {
 728         wxChar *path = WXSTRINGCAST path1 ;
 729         register wxChar *tcp;
 730
 731         tcp = path + wxStrlen (path);
 732         while (--tcp >= path)
 733         {
 734 #if defined(__WXMAC__) && !defined(__DARWIN__)
 735             // Classic or Carbon CodeWarrior like
 736             // Carbon with Apple DevTools is Unix like
 737             if (*tcp == wxT(':') )
 738                 return wxString(tcp + 1);
 739 #else
 740             // Unix like or Windows
 741             if (*tcp == wxT('/') || *tcp == wxT('\\'))
 742                 return wxString(tcp + 1);
 743 #endif
 744 #ifdef __VMS__
 745             if (*tcp == wxT(':') || *tcp == wxT(']'))
 746                 return wxString(tcp + 1);
 747 #endif
 748         } /* while */
 749 #if defined(__WXMSW__) || defined(__WXPM__)
 750         // MSDOS like
 751         if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 752             return wxString(path + 2);
 753 #endif
 754     }
 755     // Yes, this should return the path, not an empty string, otherwise
 756     // we get "thing.txt" -> "".
 757     return path1;
 758 }
 759
 760 // Return just the directory, or NULL if no directory
 761 wxChar *
 762 wxPathOnly (wxChar *path)
 763 {
 764     if (path && *path)
 765     {
 766         static wxChar buf[_MAXPATHLEN];
 767
 768         // Local copy
 769         wxStrcpy (buf, path);
 770
 771         int l = wxStrlen(path);
 772         int i = l - 1;
 773
 774         // Search backward for a backward or forward slash
 775         while (i > -1)
 776         {
 777 #if defined(__WXMAC__) && !defined(__DARWIN__)
 778             // Classic or Carbon CodeWarrior like
 779             // Carbon with Apple DevTools is Unix like
 780             if (path[i] == wxT(':') )
 781             {
 782                 buf[i] = 0;
 783                 return buf;
 784             }
 785 #else
 786             // Unix like or Windows
 787             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 788             {
 789                 buf[i] = 0;
 790                 return buf;
 791             }
 792 #endif
 793 #ifdef __VMS__
 794             if (path[i] == wxT(']'))
 795             {
 796                 buf[i+1] = 0;
 797                 return buf;
 798             }
 799 #endif
 800             i --;
 801         }
 802
 803 #if defined(__WXMSW__) || defined(__WXPM__)
 804         // Try Drive specifier
 805         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 806         {
 807             // A:junk --> A:. (since A:.\junk Not A:\junk)
 808             buf[2] = wxT('.');
 809             buf[3] = wxT('\0');
 810             return buf;
 811         }
 812 #endif
 813     }
 814     return (wxChar *) NULL;
 815 }
 816
 817 // Return just the directory, or NULL if no directory
 818 wxString wxPathOnly (const wxString& path)
 819 {
 820     if (path != wxT(""))
 821     {
 822         wxChar buf[_MAXPATHLEN];
 823
 824         // Local copy
 825         wxStrcpy (buf, WXSTRINGCAST path);
 826
 827         int l = path.Length();
 828         int i = l - 1;
 829
 830         // Search backward for a backward or forward slash
 831         while (i > -1)
 832         {
 833 #if defined(__WXMAC__) && !defined(__DARWIN__)
 834             // Classic or Carbon CodeWarrior like
 835             // Carbon with Apple DevTools is Unix like
 836             if (path[i] == wxT(':') )
 837             {
 838                 buf[i] = 0;
 839                 return wxString(buf);
 840             }
 841 #else
 842             // Unix like or Windows
 843             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 844             {
 845                 buf[i] = 0;
 846                 return wxString(buf);
 847             }
 848 #endif
 849 #ifdef __VMS__
 850             if (path[i] == wxT(']'))
 851             {
 852                 buf[i+1] = 0;
 853                 return wxString(buf);
 854             }
 855 #endif
 856             i --;
 857         }
 858
 859 #if defined(__WXMSW__) || defined(__WXPM__)
 860         // Try Drive specifier
 861         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 862         {
 863             // A:junk --> A:. (since A:.\junk Not A:\junk)
 864             buf[2] = wxT('.');
 865             buf[3] = wxT('\0');
 866             return wxString(buf);
 867         }
 868 #endif
 869     }
 870     return wxString(wxT(""));
 871 }
 872
 873 // Utility for converting delimiters in DOS filenames to UNIX style
 874 // and back again - or we get nasty problems with delimiters.
 875 // Also, convert to lower case, since case is significant in UNIX.
 876
 877 #if defined(__WXMAC__)
 878 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 879 {
 880 #ifdef __DARWIN__
 881     FSRef theRef;
 882     char  thePath[FILENAME_MAX];
 883
 884     // convert the FSSpec to an FSRef
 885     (void) FSpMakeFSRef( spec, &theRef );
 886     // get the POSIX path associated with the FSRef
 887     (void) FSRefMakePath( &theRef, (UInt8 *)thePath, sizeof(thePath) );
 888
 889     // create path string for return value
 890     wxString result( thePath ) ;
 891 #else
 892     Handle    myPath ;
 893     short     length ;
 894
 895     // get length of path and allocate handle
 896     FSpGetFullPath( spec , &length , &myPath ) ;
 897     ::SetHandleSize( myPath , length + 1 ) ;
 898     ::HLock( myPath ) ;
 899     (*myPath)[length] = 0 ;
 900     if ((length > 0) && ((*myPath)[length-1] == ':'))
 901         (*myPath)[length-1] = 0 ;
 902
 903     // create path string for return value
 904     wxString result( (char*) *myPath ) ;
 905
 906     // free allocated handle
 907     ::HUnlock( myPath ) ;
 908     ::DisposeHandle( myPath ) ;
 909 #endif
 910
 911     return result ;
 912 }
 913
 914 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 915 {
 916 #ifdef __DARWIN__
 917     FSRef theRef;
 918
 919     // get the FSRef associated with the POSIX path
 920     (void) FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
 921     // convert the FSRef to an FSSpec
 922     (void) FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
 923 #else
 924     FSpLocationFromFullPath( strlen(path) , path , spec ) ;
 925 #endif
 926 }
 927
 928 #ifndef __DARWIN__
 929 // Mac file names are POSIX (Unix style) under Darwin
 930 // therefore the conversion functions below are not needed
 931
 932 static char sMacFileNameConversion[ 1000 ] ;
 933
 934 wxString wxMac2UnixFilename (const char *str)
 935 {
 936     char *s = sMacFileNameConversion ;
 937     strcpy( s , str ) ;
 938     if (s)
 939     {
 940         memmove( s+1 , s ,strlen( s ) + 1) ;
 941         if ( *s == ':' )
 942             *s = '.' ;
 943         else
 944             *s = '/' ;
 945
 946         while (*s)
 947         {
 948             if (*s == ':')
 949                 *s = '/';
 950             else
 951                 *s = wxTolower(*s);        // Case INDEPENDENT
 952             s++;
 953         }
 954     }
 955     return wxString(sMacFileNameConversion) ;
 956 }
 957
 958 wxString wxUnix2MacFilename (const char *str)
 959 {
 960     char *s = sMacFileNameConversion ;
 961     strcpy( s , str ) ;
 962     if (s)
 963     {
 964         if ( *s == '.' )
 965         {
 966             // relative path , since it goes on with slash which is translated to a :
 967             memmove( s , s+1 ,strlen( s ) ) ;
 968         }
 969         else if ( *s == '/' )
 970         {
 971             // absolute path -> on mac just start with the drive name
 972             memmove( s , s+1 ,strlen( s ) ) ;
 973         }
 974         else
 975         {
 976             wxASSERT_MSG( 1 , "unkown path beginning" ) ;
 977         }
 978         while (*s)
 979         {
 980             if (*s == '/' || *s == '\\')
 981             {
 982                 // convert any back-directory situations
 983                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
 984                 {
 985                     *s = ':';
 986                     memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
 987                 }
 988                 else
 989                     *s = ':';
 990             }
 991             s++ ;
 992         }
 993     }
 994     return wxString (sMacFileNameConversion) ;
 995 }
 996
 997 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
 998 {
 999     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
1000 }
1001
1002 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
1003 {
1004     wxString var = wxUnix2MacFilename( path ) ;
1005     wxMacFilename2FSSpec( var , spec ) ;
1006 }
1007 #endif // ! __DARWIN__
1008
1009 #endif // __WXMAC__
1010
1011 void
1012 wxDos2UnixFilename (char *s)
1013 {
1014   if (s)
1015     while (*s)
1016       {
1017         if (*s == '\\')
1018           *s = '/';
1019 #ifdef __WXMSW__
1020         else
1021           *s = wxTolower (*s);        // Case INDEPENDENT
1022 #endif
1023         s++;
1024       }
1025 }
1026
1027 void
1028 #if defined(__WXMSW__) || defined(__WXPM__)
1029 wxUnix2DosFilename (wxChar *s)
1030 #else
1031 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1032 #endif
1033 {
1034 // Yes, I really mean this to happen under DOS only! JACS
1035 #if defined(__WXMSW__) || defined(__WXPM__)
1036   if (s)
1037     while (*s)
1038       {
1039         if (*s == wxT('/'))
1040           *s = wxT('\\');
1041         s++;
1042       }
1043 #endif
1044 }
1045
1046 // Concatenate two files to form third
1047 bool
1048 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1049 {
1050   wxString outfile;
1051   if ( !wxGetTempFileName("cat", outfile) )
1052       return FALSE;
1053
1054   FILE *fp1 = (FILE *) NULL;
1055   FILE *fp2 = (FILE *) NULL;
1056   FILE *fp3 = (FILE *) NULL;
1057   // Open the inputs and outputs
1058   if ((fp1 = wxFopen (OS_FILENAME( file1 ), wxT("rb"))) == NULL ||
1059       (fp2 = wxFopen (OS_FILENAME( file2 ), wxT("rb"))) == NULL ||
1060       (fp3 = wxFopen (OS_FILENAME( outfile ), wxT("wb"))) == NULL)
1061     {
1062       if (fp1)
1063         fclose (fp1);
1064       if (fp2)
1065         fclose (fp2);
1066       if (fp3)
1067         fclose (fp3);
1068       return FALSE;
1069     }
1070
1071   int ch;
1072   while ((ch = getc (fp1)) != EOF)
1073     (void) putc (ch, fp3);
1074   fclose (fp1);
1075
1076   while ((ch = getc (fp2)) != EOF)
1077     (void) putc (ch, fp3);
1078   fclose (fp2);
1079
1080   fclose (fp3);
1081   bool result = wxRenameFile(outfile, file3);
1082   return result;
1083 }
1084
1085 // Copy files
1086 bool
1087 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1088 {
1089 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1090     // CopyFile() copies file attributes and modification time too, so use it
1091     // instead of our code if available
1092     //
1093     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1094     return ::CopyFile(file1, file2, !overwrite) != 0;
1095 #elif defined(__WXPM__)
1096     if (::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) == 0)
1097         return TRUE;
1098     else
1099         return FALSE;
1100 #else // !Win32
1101     wxStructStat fbuf;
1102
1103     // get permissions of file1
1104     if ( wxStat(OS_FILENAME(file1), &fbuf) != 0 )
1105     {
1106         // the file probably doesn't exist or we haven't the rights to read
1107         // from it anyhow
1108         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1109                       file1.c_str());
1110         return FALSE;
1111     }
1112
1113     // open file1 for reading
1114     wxFile fileIn(file1, wxFile::read);
1115     if ( !fileIn.IsOpened() )
1116         return FALSE;
1117
1118     // remove file2, if it exists. This is needed for creating
1119     // file2 with the correct permissions in the next step
1120     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1121     {
1122         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1123                       file2.c_str());
1124         return FALSE;
1125     }
1126
1127 #ifdef __UNIX__
1128     // reset the umask as we want to create the file with exactly the same
1129     // permissions as the original one
1130     mode_t oldUmask = umask( 0 );
1131 #endif // __UNIX__
1132
1133     // create file2 with the same permissions than file1 and open it for
1134     // writing
1135     wxFile fileOut;
1136     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1137         return FALSE;
1138
1139 #ifdef __UNIX__
1140     /// restore the old umask
1141     umask(oldUmask);
1142 #endif // __UNIX__
1143
1144     // copy contents of file1 to file2
1145     char buf[4096];
1146     size_t count;
1147     for ( ;; )
1148     {
1149         count = fileIn.Read(buf, WXSIZEOF(buf));
1150         if ( fileIn.Error() )
1151             return FALSE;
1152
1153         // end of file?
1154         if ( !count )
1155             break;
1156
1157         if ( fileOut.Write(buf, count) < count )
1158             return FALSE;
1159     }
1160
1161     // we can expect fileIn to be closed successfully, but we should ensure
1162     // that fileOut was closed as some write errors (disk full) might not be
1163     // detected before doing this
1164     if ( !fileIn.Close() || !fileOut.Close() )
1165         return FALSE;
1166
1167 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1168     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1169     // however
1170     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1171     {
1172         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1173                       file2.c_str());
1174         return FALSE;
1175     }
1176 #endif // OS/2 || Mac
1177
1178     return TRUE;
1179 #endif // __WXMSW__ && __WIN32__
1180 }
1181
1182 bool
1183 wxRenameFile (const wxString& file1, const wxString& file2)
1184 {
1185   // Normal system call
1186   if ( wxRename (file1, file2) == 0 )
1187     return TRUE;
1188
1189   // Try to copy
1190   if (wxCopyFile(file1, file2)) {
1191     wxRemoveFile(file1);
1192     return TRUE;
1193   }
1194   // Give up
1195   return FALSE;
1196 }
1197
1198 bool wxRemoveFile(const wxString& file)
1199 {
1200 #if defined(__VISUALC__) \
1201  || defined(__BORLANDC__) \
1202  || defined(__WATCOMC__) \
1203  || defined(__GNUWIN32__)
1204   int res = wxRemove(file);
1205 #else
1206   int res = unlink(OS_FILENAME(file));
1207 #endif
1208
1209   return res == 0;
1210 }
1211
1212 bool wxMkdir(const wxString& dir, int perm)
1213 {
1214 #if defined(__WXMAC__) && !defined(__UNIX__)
1215   return (mkdir( dir , 0 ) == 0);
1216 #else // !Mac
1217     const wxChar *dirname = dir.c_str();
1218
1219     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1220     // for the GNU compiler
1221 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__) || defined(__WXMICROWIN__)
1222     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1223 #elif defined(__WXPM__)
1224     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1225 #elif defined(__DOS__)
1226   #if defined(__WATCOMC__)
1227     (void)perm;
1228     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1229   #elif defined(__DJGPP__)
1230     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1231   #else
1232     #error "Unsupported DOS compiler!"
1233   #endif
1234 #else  // !MSW, !DOS and !OS/2 VAC++
1235     (void)perm;
1236     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1237 #endif // !MSW/MSW
1238     {
1239         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1240
1241         return FALSE;
1242     }
1243
1244     return TRUE;
1245 #endif // Mac/!Mac
1246 }
1247
1248 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1249 {
1250 #ifdef __VMS__
1251   return FALSE; //to be changed since rmdir exists in VMS7.x
1252 #elif defined(__WXPM__)
1253   return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1254 #else
1255
1256 #ifdef __SALFORDC__
1257   return FALSE; // What to do?
1258 #else
1259   return (wxRmDir(OS_FILENAME(dir)) == 0);
1260 #endif
1261
1262 #endif
1263 }
1264
1265 // does the path exists? (may have or not '/' or '\\' at the end)
1266 bool wxPathExists(const wxChar *pszPathName)
1267 {
1268     wxString strPath(pszPathName);
1269 #ifdef __WINDOWS__
1270     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1271     // so remove all trailing backslashes from the path - but don't do this for
1272     // the pathes "d:\" (which are different from "d:") nor for just "\"
1273     while ( wxEndsWithPathSeparator(strPath) )
1274     {
1275         size_t len = strPath.length();
1276         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1277             break;
1278
1279         strPath.Truncate(len - 1);
1280     }
1281 #endif // __WINDOWS__
1282
1283 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1284     // Stat can't cope with network paths
1285     DWORD ret = ::GetFileAttributes(filename);
1286     if ( ret == (DWORD)-1 )
1287     {
1288         wxLogLastError(_T("GetFileAttributes"));
1289
1290         return FALSE;
1291     }
1292
1293     return (ret & FILE_ATTRIBUTE_DIRECTORY) != 0;
1294 #else
1295
1296     wxStructStat st;
1297 #ifndef __VISAGECPP__
1298     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1299         ((st.st_mode & S_IFMT) == S_IFDIR);
1300 #else
1301     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1302     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1303         (st.st_mode == S_IFDIR);
1304 #endif
1305
1306 #endif
1307 }
1308
1309 // Get a temporary filename, opening and closing the file.
1310 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1311 {
1312     wxString filename = wxFileName::CreateTempFileName(prefix);
1313     if ( filename.empty() )
1314         return NULL;
1315
1316     if ( buf )
1317         wxStrcpy(buf, filename);
1318     else
1319         buf = copystring(filename);
1320
1321     return buf;
1322 }
1323
1324 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1325 {
1326     buf = wxFileName::CreateTempFileName(prefix);
1327
1328     return !buf.empty();
1329 }
1330
1331 // Get first file name matching given wild card.
1332
1333 static wxDir *gs_dir = NULL;
1334 static wxString gs_dirPath;
1335
1336 wxString wxFindFirstFile(const wxChar *spec, int flags)
1337 {
1338     gs_dirPath = wxPathOnly(spec);
1339     if ( gs_dirPath.IsEmpty() )
1340         gs_dirPath = wxT(".");
1341     if ( gs_dirPath.Last() != wxFILE_SEP_PATH )
1342         gs_dirPath << wxFILE_SEP_PATH;
1343
1344     if (gs_dir)
1345         delete gs_dir;
1346     gs_dir = new wxDir(gs_dirPath);
1347
1348     if ( !gs_dir->IsOpened() )
1349     {
1350         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1351         return wxEmptyString;
1352     }
1353
1354     int dirFlags = 0;
1355     switch (flags)
1356     {
1357         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1358         case wxFILE: dirFlags = wxDIR_FILES; break;
1359         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1360     }
1361
1362     wxString result;
1363     gs_dir->GetFirst(&result, wxFileNameFromPath(spec), dirFlags);
1364     if ( result.IsEmpty() )
1365     {
1366         wxDELETE(gs_dir);
1367         return result;
1368     }
1369
1370     return gs_dirPath + result;
1371 }
1372
1373 wxString wxFindNextFile()
1374 {
1375     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1376
1377     wxString result;
1378     gs_dir->GetNext(&result);
1379
1380     if ( result.IsEmpty() )
1381     {
1382         wxDELETE(gs_dir);
1383         return result;
1384     }
1385
1386     return gs_dirPath + result;
1387 }
1388
1389
1390 // Get current working directory.
1391 // If buf is NULL, allocates space using new, else
1392 // copies into buf.
1393 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1394 {
1395     if ( !buf )
1396     {
1397         buf = new wxChar[sz + 1];
1398     }
1399
1400     bool ok;
1401
1402     // for the compilers which have Unicode version of _getcwd(), call it
1403     // directly, for the others call the ANSI version and do the translation
1404 #if wxUSE_UNICODE
1405     #ifdef HAVE_WGETCWD
1406         ok = _wgetcwd(buf, sz) != NULL;
1407     #else // !HAVE_WGETCWD
1408         wxCharBuffer cbuf(sz);
1409     #endif
1410 #endif //
1411
1412 #if !wxUSE_UNICODE || !defined(HAVE_WGETCWD)
1413     #ifdef _MSC_VER
1414         ok = _getcwd(buf, sz) != NULL;
1415     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1416         FSSpec cwdSpec ;
1417         FCBPBRec pb;
1418         OSErr error;
1419         Str255  fileName ;
1420         pb.ioNamePtr = (StringPtr) &fileName;
1421         pb.ioVRefNum = 0;
1422         pb.ioRefNum = LMGetCurApRefNum();
1423         pb.ioFCBIndx = 0;
1424         error = PBGetFCBInfoSync(&pb);
1425         if ( error == noErr )
1426         {
1427             cwdSpec.vRefNum = pb.ioFCBVRefNum;
1428             cwdSpec.parID = pb.ioFCBParID;
1429             cwdSpec.name[0] = 0 ;
1430             wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1431
1432             strcpy( buf , res ) ;
1433             buf[res.length()]=0 ;
1434
1435             ok = TRUE;
1436         }
1437         else
1438         {
1439             ok = FALSE;
1440         }
1441     #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1442         APIRET rc;
1443         rc = ::DosQueryCurrentDir( 0 // current drive
1444                                   ,buf
1445                                   ,(PULONG)&sz
1446                                  );
1447         ok = rc != 0;
1448     #else // !Win32/VC++ !Mac !OS2
1449         ok = getcwd(buf, sz) != NULL;
1450     #endif // platform
1451 #endif // !wxUSE_UNICODE || !HAVE_WGETCWD
1452
1453     if ( !ok )
1454     {
1455         wxLogSysError(_("Failed to get the working directory"));
1456
1457         // VZ: the old code used to return "." on error which didn't make any
1458         //     sense at all to me - empty string is a better error indicator
1459         //     (NULL might be even better but I'm afraid this could lead to
1460         //     problems with the old code assuming the return is never NULL)
1461         buf[0] = _T('\0');
1462     }
1463     else // ok, but we might need to massage the path into the right format
1464     {
1465 #ifdef __DJGPP__
1466         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1467         //     with / deliminers. We don't like that.
1468         for (wxChar *ch = buf; *ch; ch++)
1469         {
1470             if (*ch == wxT('/'))
1471                 *ch = wxT('\\');
1472         }
1473 #endif // __DJGPP__
1474
1475 #ifdef __GNUWIN32__
1476         // another example of DOS/Unix mix (Cygwin)
1477         wxString pathUnix = buf;
1478         cygwin_conv_to_full_win32_path(pathUnix, buf);
1479 #endif // __GNUWIN32__
1480
1481         // finally convert the result to Unicode if needed
1482 #if wxUSE_UNICODE && !defined(HAVE_WGETCWD)
1483         wxConvFile.MB2WC(buf, cbuf, sz);
1484 #endif // wxUSE_UNICODE
1485     }
1486
1487     return buf;
1488 }
1489
1490 wxString wxGetCwd()
1491 {
1492     wxString str;
1493
1494     // we can't create wxStringBuffer object inline: Sun CC generates buggy
1495     // code in this case!
1496     {
1497         wxStringBuffer buf(str, _MAXPATHLEN);
1498         wxGetWorkingDirectory(buf, _MAXPATHLEN);
1499     }
1500
1501     return str;
1502 }
1503
1504 bool wxSetWorkingDirectory(const wxString& d)
1505 {
1506 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1507   return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1508 #elif defined(__WXPM__)
1509   return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1510 #elif defined(__WINDOWS__)
1511
1512 #ifdef __WIN32__
1513   return (bool)(SetCurrentDirectory(d) != 0);
1514 #else
1515   // Must change drive, too.
1516   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1517   if (isDriveSpec)
1518   {
1519     wxChar firstChar = d[0];
1520
1521     // To upper case
1522     if (firstChar > 90)
1523       firstChar = firstChar - 32;
1524
1525     // To a drive number
1526     unsigned int driveNo = firstChar - 64;
1527     if (driveNo > 0)
1528     {
1529        unsigned int noDrives;
1530        _dos_setdrive(driveNo, &noDrives);
1531     }
1532   }
1533   bool success = (chdir(WXSTRINGCAST d) == 0);
1534
1535   return success;
1536 #endif
1537
1538 #endif
1539 }
1540
1541 // Get the OS directory if appropriate (such as the Windows directory).
1542 // On non-Windows platform, probably just return the empty string.
1543 wxString wxGetOSDirectory()
1544 {
1545 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1546     wxChar buf[256];
1547     GetWindowsDirectory(buf, 256);
1548     return wxString(buf);
1549 #else
1550     return wxEmptyString;
1551 #endif
1552 }
1553
1554 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1555 {
1556     size_t len = wxStrlen(pszFileName);
1557
1558     return len && wxIsPathSeparator(pszFileName[len - 1]);
1559 }
1560
1561 // find a file in a list of directories, returns false if not found
1562 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1563 {
1564     // we assume that it's not empty
1565     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1566                  _T("empty file name in wxFindFileInPath"));
1567
1568     // skip path separator in the beginning of the file name if present
1569     if ( wxIsPathSeparator(*pszFile) )
1570         pszFile++;
1571
1572     // copy the path (strtok will modify it)
1573     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1574     wxStrcpy(szPath, pszPath);
1575
1576     wxString strFile;
1577     wxChar *pc, *save_ptr;
1578     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1579           pc != NULL;
1580           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1581     {
1582         // search for the file in this directory
1583         strFile = pc;
1584         if ( !wxEndsWithPathSeparator(pc) )
1585             strFile += wxFILE_SEP_PATH;
1586         strFile += pszFile;
1587
1588         if ( FileExists(strFile) ) {
1589             *pStr = strFile;
1590             break;
1591         }
1592     }
1593
1594     // suppress warning about unused variable save_ptr when wxStrtok() is a
1595     // macro which throws away its third argument
1596     save_ptr = pc;
1597
1598     delete [] szPath;
1599
1600     return pc != NULL;  // if true => we breaked from the loop
1601 }
1602
1603 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1604                              wxString *pstrPath,
1605                              wxString *pstrName,
1606                              wxString *pstrExt)
1607 {
1608     // it can be empty, but it shouldn't be NULL
1609     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1610
1611     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1612 }
1613
1614 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1615 {
1616     wxStructStat buf;
1617
1618     wxStat(filename.fn_str(), &buf);
1619     return buf.st_mtime;
1620 }
1621
1622
1623 //------------------------------------------------------------------------
1624 // wild character routines
1625 //------------------------------------------------------------------------
1626
1627 bool wxIsWild( const wxString& pattern )
1628 {
1629   wxString tmp = pattern;
1630   wxChar *pat = WXSTRINGCAST(tmp);
1631     while (*pat) {
1632         switch (*pat++) {
1633         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1634             return TRUE;
1635         case wxT('\\'):
1636             if (!*pat++)
1637                 return FALSE;
1638         }
1639     }
1640     return FALSE;
1641 };
1642
1643 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1644
1645 #if defined(HAVE_FNMATCH_H)
1646 {
1647 // this probably won't work well for multibyte chars in Unicode mode?
1648    if(dot_special)
1649       return fnmatch(pat.fn_str(), text.fn_str(), FNM_PERIOD) == 0;
1650    else
1651       return fnmatch(pat.fn_str(), text.fn_str(), 0) == 0;
1652 }
1653 #else
1654
1655 // #pragma error Broken implementation of wxMatchWild() -- needs fixing!
1656
1657    /*
1658     * WARNING: this code is broken!
1659     */
1660 {
1661   wxString tmp1 = pat;
1662   wxChar *pattern = WXSTRINGCAST(tmp1);
1663   wxString tmp2 = text;
1664   wxChar *str = WXSTRINGCAST(tmp2);
1665     wxChar c;
1666     wxChar *cp;
1667     bool done = FALSE, ret_code, ok;
1668     // Below is for vi fans
1669     const wxChar OB = wxT('{'), CB = wxT('}');
1670
1671     // dot_special means '.' only matches '.'
1672     if (dot_special && *str == wxT('.') && *pattern != *str)
1673         return FALSE;
1674
1675     while ((*pattern != wxT('\0')) && (!done)
1676     && (((*str==wxT('\0'))&&((*pattern==OB)||(*pattern==wxT('*'))))||(*str!=wxT('\0')))) {
1677         switch (*pattern) {
1678         case wxT('\\'):
1679             pattern++;
1680             if (*pattern != wxT('\0'))
1681                 pattern++;
1682             break;
1683         case wxT('*'):
1684             pattern++;
1685             ret_code = FALSE;
1686             while ((*str!=wxT('\0'))
1687             && ((ret_code=wxMatchWild(pattern, str++, FALSE)) == 0))
1688                 /*loop*/;
1689             if (ret_code) {
1690                 while (*str != wxT('\0'))
1691                     str++;
1692                 while (*pattern != wxT('\0'))
1693                     pattern++;
1694             }
1695             break;
1696         case wxT('['):
1697             pattern++;
1698           repeat:
1699             if ((*pattern == wxT('\0')) || (*pattern == wxT(']'))) {
1700                 done = TRUE;
1701                 break;
1702             }
1703             if (*pattern == wxT('\\')) {
1704                 pattern++;
1705                 if (*pattern == wxT('\0')) {
1706                     done = TRUE;
1707                     break;
1708                 }
1709             }
1710             if (*(pattern + 1) == wxT('-')) {
1711                 c = *pattern;
1712                 pattern += 2;
1713                 if (*pattern == wxT(']')) {
1714                     done = TRUE;
1715                     break;
1716                 }
1717                 if (*pattern == wxT('\\')) {
1718                     pattern++;
1719                     if (*pattern == wxT('\0')) {
1720                         done = TRUE;
1721                         break;
1722                     }
1723                 }
1724                 if ((*str < c) || (*str > *pattern)) {
1725                     pattern++;
1726                     goto repeat;
1727                 }
1728             } else if (*pattern != *str) {
1729                 pattern++;
1730                 goto repeat;
1731             }
1732             pattern++;
1733             while ((*pattern != wxT(']')) && (*pattern != wxT('\0'))) {
1734                 if ((*pattern == wxT('\\')) && (*(pattern + 1) != wxT('\0')))
1735                     pattern++;
1736                 pattern++;
1737             }
1738             if (*pattern != wxT('\0')) {
1739                 pattern++, str++;
1740             }
1741             break;
1742         case wxT('?'):
1743             pattern++;
1744             str++;
1745             break;
1746         case OB:
1747             pattern++;
1748             while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1749                 cp = str;
1750                 ok = TRUE;
1751                 while (ok && (*cp != wxT('\0')) && (*pattern != wxT('\0'))
1752                 &&  (*pattern != wxT(',')) && (*pattern != CB)) {
1753                     if (*pattern == wxT('\\'))
1754                         pattern++;
1755                     ok = (*pattern++ == *cp++);
1756                 }
1757                 if (*pattern == wxT('\0')) {
1758                     ok = FALSE;
1759                     done = TRUE;
1760                     break;
1761                 } else if (ok) {
1762                     str = cp;
1763                     while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1764                         if (*++pattern == wxT('\\')) {
1765                             if (*++pattern == CB)
1766                                 pattern++;
1767                         }
1768                     }
1769                 } else {
1770                     while (*pattern!=CB && *pattern!=wxT(',') && *pattern!=wxT('\0')) {
1771                         if (*++pattern == wxT('\\')) {
1772                             if (*++pattern == CB || *pattern == wxT(','))
1773                                 pattern++;
1774                         }
1775                     }
1776                 }
1777                 if (*pattern != wxT('\0'))
1778                     pattern++;
1779             }
1780             break;
1781         default:
1782             if (*str == *pattern) {
1783                 str++, pattern++;
1784             } else {
1785                 done = TRUE;
1786             }
1787         }
1788     }
1789     while (*pattern == wxT('*'))
1790         pattern++;
1791     return ((*str == wxT('\0')) && (*pattern == wxT('\0')));
1792 };
1793
1794 #endif
1795
1796 #ifdef __VISUALC__
1797     #pragma warning(default:4706)   // assignment within conditional expression
1798 #endif // VC++
1799
1800 //------------------------------------------------------------------------
1801 // Missing functions in Unicode for Win9x
1802 //------------------------------------------------------------------------
1803
1804 // NB: MSLU only covers Win32 API, it doesn't provide Unicode implementation of
1805 //     libc functions. Unfortunately, some of MSVCRT wchar_t functions
1806 //     (e.g. _wopen) don't work on Windows 9x, so we have to workaround it
1807 //     by calling the char version. We still want to use wchar_t version on
1808 //     NT/2000/XP, though, because they allow for Unicode file names.
1809 #if wxUSE_UNICODE_MSLU
1810
1811     #if defined( __VISUALC__ ) \
1812         || ( defined(__MINGW32__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
1813         || ( defined(__MWERKS__) && defined(__WXMSW__) )
1814     WXDLLEXPORT int wxOpen(const wxChar *name, int flags, int mode)
1815     {
1816         if ( wxGetOsVersion() == wxWINDOWS_NT )
1817             return _wopen(name, flags, mode);
1818         else
1819             return _open(wxConvFile.cWX2MB(name), flags, mode);
1820     }
1821     #endif
1822
1823 #endif // wxUSE_UNICODE_MSLU