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     #include <fcntl.h>
  72 #endif
  73
  74 #ifdef __WXPM__
  75     #include <process.h>
  76     #include "wx/os2/private.h"
  77 #endif
  78 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__) && !defined(__WXWINE__)
  79 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
  80     #include <direct.h>
  81     #include <dos.h>
  82     #include <io.h>
  83 #endif // __WINDOWS__
  84 #endif // native Win compiler
  85
  86 #if defined(__DOS__)
  87     #ifdef __WATCOMC__
  88         #include <direct.h>
  89         #include <dos.h>
  90         #include <io.h>
  91     #endif
  92     #ifdef __DJGPP__
  93         #include <unistd.h>
  94     #endif
  95 #endif
  96
  97 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  98                     // this (3.1 I believe) and how to test for it.
  99                     // If this works for Borland 4.0 as well, then no worries.
 100     #include <dir.h>
 101 #endif
 102
 103 #ifdef __SALFORDC__
 104     #include <dir.h>
 105     #include <unix.h>
 106 #endif
 107
 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     #include "wx/msw/mslu.h"
 118
 119     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
 120     //
 121     // note that it must be included after <windows.h>
 122     #ifdef __GNUWIN32__
 123         #ifdef __CYGWIN__
 124             #include <sys/cygwin.h>
 125         #endif
 126
 127         #ifndef __TWIN32__
 128             #include <sys/unistd.h>
 129         #endif
 130     #endif // __GNUWIN32__
 131 #endif // __WINDOWS__
 132
 133 // TODO: Borland probably has _wgetcwd as well?
 134 #ifdef _MSC_VER
 135     #define HAVE_WGETCWD
 136 #endif
 137
 138 // ----------------------------------------------------------------------------
 139 // constants
 140 // ----------------------------------------------------------------------------
 141
 142 #ifndef _MAXPATHLEN
 143     #define _MAXPATHLEN 1024
 144 #endif
 145
 146 #ifdef __WXMAC__
 147 #    include "MoreFiles.h"
 148 #    include "MoreFilesExtras.h"
 149 #    include "FullPath.h"
 150 #    include "FSpCompat.h"
 151 #endif
 152
 153 // ----------------------------------------------------------------------------
 154 // private globals
 155 // ----------------------------------------------------------------------------
 156
 157 // MT-FIXME: get rid of this horror and all code using it
 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 #ifdef wxNEED_WX_UNISTD_H
 180
 181 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 182 {
 183     return stat( wxConvFile.cWX2MB( file_name ), buf );
 184 }
 185
 186 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 187 {
 188     return access( wxConvFile.cWX2MB( pathname ), mode );
 189 }
 190
 191 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 192 {
 193     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 194 }
 195
 196 #endif
 197    // wxNEED_WX_UNISTD_H
 198
 199 // ----------------------------------------------------------------------------
 200 // wxPathList
 201 // ----------------------------------------------------------------------------
 202
 203 IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 204
 205 void wxPathList::Add (const wxString& path)
 206 {
 207     wxStringList::Add (WXSTRINGCAST path);
 208 }
 209
 210 // Add paths e.g. from the PATH environment variable
 211 void wxPathList::AddEnvList (const wxString& envVariable)
 212 {
 213   static const wxChar PATH_TOKS[] =
 214 #ifdef __WINDOWS__
 215         wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 216 #else
 217         wxT(" :;");
 218 #endif
 219
 220   wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 221   if (val && *val)
 222     {
 223       wxChar *s = copystring (val);
 224       wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 225
 226       if (token)
 227       {
 228           Add (copystring (token));
 229           while (token)
 230           {
 231               if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
 232                   Add (wxString(token));
 233           }
 234       }
 235
 236       // suppress warning about unused variable save_ptr when wxStrtok() is a
 237       // macro which throws away its third argument
 238       save_ptr = token;
 239
 240       delete [] s;
 241     }
 242 }
 243
 244 // Given a full filename (with path), ensure that that file can
 245 // be accessed again USING FILENAME ONLY by adding the path
 246 // to the list if not already there.
 247 void wxPathList::EnsureFileAccessible (const wxString& path)
 248 {
 249     wxString path_only(wxPathOnly(path));
 250     if ( !path_only.IsEmpty() )
 251     {
 252         if ( !Member(path_only) )
 253             Add(path_only);
 254     }
 255 }
 256
 257 bool wxPathList::Member (const wxString& path)
 258 {
 259   for (wxNode * node = First (); node != NULL; node = node->Next ())
 260   {
 261       wxString path2((wxChar *) node->Data ());
 262       if (
 263 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 264       // Case INDEPENDENT
 265           path.CompareTo (path2, wxString::ignoreCase) == 0
 266 #else
 267       // Case sensitive File System
 268           path.CompareTo (path2) == 0
 269 #endif
 270         )
 271         return TRUE;
 272   }
 273   return FALSE;
 274 }
 275
 276 wxString wxPathList::FindValidPath (const wxString& file)
 277 {
 278   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 279     return wxString(wxFileFunctionsBuffer);
 280
 281   wxChar buf[_MAXPATHLEN];
 282   wxStrcpy(buf, wxFileFunctionsBuffer);
 283
 284   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 285   filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 286
 287   for (wxNode * node = First (); node; node = node->Next ())
 288     {
 289       wxChar *path = (wxChar *) node->Data ();
 290       wxStrcpy (wxFileFunctionsBuffer, path);
 291       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 292       if (ch != wxT('\\') && ch != wxT('/'))
 293         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 294       wxStrcat (wxFileFunctionsBuffer, filename);
 295 #ifdef __WINDOWS__
 296       wxUnix2DosFilename (wxFileFunctionsBuffer);
 297 #endif
 298       if (wxFileExists (wxFileFunctionsBuffer))
 299       {
 300         return wxString(wxFileFunctionsBuffer);        // Found!
 301       }
 302     }                                // for()
 303
 304   return wxString(wxT(""));                    // Not found
 305 }
 306
 307 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 308 {
 309     wxString f = FindValidPath(file);
 310     if ( wxIsAbsolutePath(f) )
 311         return f;
 312
 313     wxString buf;
 314     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 315
 316     if ( !wxEndsWithPathSeparator(buf) )
 317     {
 318         buf += wxFILE_SEP_PATH;
 319     }
 320     buf += f;
 321
 322     return buf;
 323 }
 324
 325 bool
 326 wxFileExists (const wxString& filename)
 327 {
 328     // we must use GetFileAttributes() instead of the ANSI C functions because
 329     // it can cope with network (UNC) paths unlike them
 330 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 331     DWORD ret = ::GetFileAttributes(filename);
 332
 333     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 334 #else // !__WIN32__
 335     wxStructStat st;
 336     return wxStat(filename, &st) == 0 && (st.st_mode & S_IFREG);
 337 #endif // __WIN32__/!__WIN32__
 338 }
 339
 340 bool
 341 wxIsAbsolutePath (const wxString& filename)
 342 {
 343     if (filename != wxT(""))
 344     {
 345 #if defined(__WXMAC__) && !defined(__DARWIN__)
 346         // Classic or Carbon CodeWarrior like
 347         // Carbon with Apple DevTools is Unix like
 348
 349         // This seems wrong to me, but there is no fix. since
 350         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 351         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 352         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 353             return TRUE ;
 354 #else
 355         // Unix like or Windows
 356         if (filename[0] == wxT('/'))
 357             return TRUE;
 358 #endif
 359 #ifdef __VMS__
 360         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 361             return TRUE;
 362 #endif
 363 #ifdef __WINDOWS__
 364         // MSDOS like
 365         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 366             return TRUE;
 367 #endif
 368     }
 369     return FALSE ;
 370 }
 371
 372 /*
 373  * Strip off any extension (dot something) from end of file,
 374  * IF one exists. Inserts zero into buffer.
 375  *
 376  */
 377
 378 void wxStripExtension(wxChar *buffer)
 379 {
 380   int len = wxStrlen(buffer);
 381   int i = len-1;
 382   while (i > 0)
 383   {
 384     if (buffer[i] == wxT('.'))
 385     {
 386       buffer[i] = 0;
 387       break;
 388     }
 389     i --;
 390   }
 391 }
 392
 393 void wxStripExtension(wxString& buffer)
 394 {
 395   size_t len = buffer.Length();
 396   size_t i = len-1;
 397   while (i > 0)
 398   {
 399     if (buffer.GetChar(i) == wxT('.'))
 400     {
 401       buffer = buffer.Left(i);
 402       break;
 403     }
 404     i --;
 405   }
 406 }
 407
 408 // Destructive removal of /./ and /../ stuff
 409 wxChar *wxRealPath (wxChar *path)
 410 {
 411 #ifdef __WXMSW__
 412   static const wxChar SEP = wxT('\\');
 413   wxUnix2DosFilename(path);
 414 #else
 415   static const wxChar SEP = wxT('/');
 416 #endif
 417   if (path[0] && path[1]) {
 418     /* MATTHEW: special case "/./x" */
 419     wxChar *p;
 420     if (path[2] == SEP && path[1] == wxT('.'))
 421       p = &path[0];
 422     else
 423       p = &path[2];
 424     for (; *p; p++)
 425       {
 426         if (*p == SEP)
 427           {
 428             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 429               {
 430                 wxChar *q;
 431                 for (q = p - 1; q >= path && *q != SEP; q--);
 432                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 433                     && (q - 1 <= path || q[-1] != SEP))
 434                   {
 435                     wxStrcpy (q, p + 3);
 436                     if (path[0] == wxT('\0'))
 437                       {
 438                         path[0] = SEP;
 439                         path[1] = wxT('\0');
 440                       }
 441 #ifdef __WXMSW__
 442                     /* Check that path[2] is NULL! */
 443                     else if (path[1] == wxT(':') && !path[2])
 444                       {
 445                         path[2] = SEP;
 446                         path[3] = wxT('\0');
 447                       }
 448 #endif
 449                     p = q - 1;
 450                   }
 451               }
 452             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 453               wxStrcpy (p, p + 2);
 454           }
 455       }
 456   }
 457   return path;
 458 }
 459
 460 // Must be destroyed
 461 wxChar *wxCopyAbsolutePath(const wxString& filename)
 462 {
 463   if (filename == wxT(""))
 464     return (wxChar *) NULL;
 465
 466   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 467     wxChar  buf[_MAXPATHLEN];
 468     buf[0] = wxT('\0');
 469     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 470     wxChar ch = buf[wxStrlen(buf) - 1];
 471 #ifdef __WXMSW__
 472     if (ch != wxT('\\') && ch != wxT('/'))
 473         wxStrcat(buf, wxT("\\"));
 474 #else
 475     if (ch != wxT('/'))
 476         wxStrcat(buf, wxT("/"));
 477 #endif
 478     wxStrcat(buf, wxFileFunctionsBuffer);
 479     return copystring( wxRealPath(buf) );
 480   }
 481   return copystring( wxFileFunctionsBuffer );
 482 }
 483
 484 /*-
 485  Handles:
 486    ~/ => home dir
 487    ~user/ => user's home dir
 488    If the environment variable a = "foo" and b = "bar" then:
 489    Unix:
 490         $a        =>        foo
 491         $a$b        =>        foobar
 492         $a.c        =>        foo.c
 493         xxx$a        =>        xxxfoo
 494         ${a}!        =>        foo!
 495         $(b)!        =>        bar!
 496         \$a        =>        \$a
 497    MSDOS:
 498         $a        ==>        $a
 499         $(a)        ==>        foo
 500         $(a)$b        ==>        foo$b
 501         $(a)$(b)==>        foobar
 502         test.$$        ==>        test.$$
 503  */
 504
 505 /* input name in name, pathname output to buf. */
 506
 507 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 508 {
 509     register wxChar *d, *s, *nm;
 510     wxChar          lnm[_MAXPATHLEN];
 511     int             q;
 512
 513     // Some compilers don't like this line.
 514 //    const wxChar    trimchars[] = wxT("\n \t");
 515
 516     wxChar      trimchars[4];
 517     trimchars[0] = wxT('\n');
 518     trimchars[1] = wxT(' ');
 519     trimchars[2] = wxT('\t');
 520     trimchars[3] = 0;
 521
 522 #ifdef __WXMSW__
 523      const wxChar     SEP = wxT('\\');
 524 #else
 525      const wxChar     SEP = wxT('/');
 526 #endif
 527     buf[0] = wxT('\0');
 528     if (name == NULL || *name == wxT('\0'))
 529         return buf;
 530     nm = copystring(name); // Make a scratch copy
 531     wxChar *nm_tmp = nm;
 532
 533     /* Skip leading whitespace and cr */
 534     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 535         nm++;
 536     /* And strip off trailing whitespace and cr */
 537     s = nm + (q = wxStrlen(nm)) - 1;
 538     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 539         *s = wxT('\0');
 540
 541     s = nm;
 542     d = lnm;
 543 #ifdef __WXMSW__
 544     q = FALSE;
 545 #else
 546     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 547 #endif
 548
 549     /* Expand inline environment variables */
 550 #ifdef __VISAGECPP__
 551     while (*d)
 552     {
 553       *d++ = *s;
 554       if(*s == wxT('\\'))
 555       {
 556         *(d - 1) = *++s;
 557         if (*d)
 558         {
 559           s++;
 560           continue;
 561         }
 562         else
 563            break;
 564       }
 565       else
 566 #else
 567     while ((*d++ = *s) != 0) {
 568 #  ifndef __WXMSW__
 569         if (*s == wxT('\\')) {
 570             if ((*(d - 1) = *++s)) {
 571                 s++;
 572                 continue;
 573             } else
 574                 break;
 575         } else
 576 #  endif
 577 #endif
 578 #ifdef __WXMSW__
 579         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 580 #else
 581         if (*s++ == wxT('$'))
 582 #endif
 583         {
 584             register wxChar  *start = d;
 585             register int     braces = (*s == wxT('{') || *s == wxT('('));
 586             register wxChar  *value;
 587             while ((*d++ = *s) != 0)
 588                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 589                     break;
 590                 else
 591                     s++;
 592             *--d = 0;
 593             value = wxGetenv(braces ? start + 1 : start);
 594             if (value) {
 595                 for ((d = start - 1); (*d++ = *value++) != 0;);
 596                 d--;
 597                 if (braces && *s)
 598                     s++;
 599             }
 600         }
 601     }
 602
 603     /* Expand ~ and ~user */
 604     nm = lnm;
 605     if (nm[0] == wxT('~') && !q)
 606     {
 607         /* prefix ~ */
 608         if (nm[1] == SEP || nm[1] == 0)
 609         {        /* ~/filename */
 610         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 611             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 612                 if (*++nm)
 613                     nm++;
 614             }
 615         } else
 616         {                /* ~user/filename */
 617             register wxChar  *nnm;
 618             register wxChar  *home;
 619             for (s = nm; *s && *s != SEP; s++);
 620             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 621             was_sep = (*s == SEP);
 622             nnm = *s ? s + 1 : s;
 623             *s = 0;
 624         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 625             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 626                if (was_sep) /* replace only if it was there: */
 627                    *s = SEP;
 628                 s = NULL;
 629             } else {
 630                 nm = nnm;
 631                 s = home;
 632             }
 633         }
 634     }
 635
 636     d = buf;
 637     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 638         /* Copy home dir */
 639         while (wxT('\0') != (*d++ = *s++))
 640           /* loop */;
 641         // Handle root home
 642         if (d - 1 > buf && *(d - 2) != SEP)
 643           *(d - 1) = SEP;
 644     }
 645     s = nm;
 646     while ((*d++ = *s++) != 0);
 647     delete[] nm_tmp; // clean up alloc
 648     /* Now clean up the buffer */
 649     return wxRealPath(buf);
 650 }
 651
 652 /* Contract Paths to be build upon an environment variable
 653    component:
 654
 655    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 656
 657    The call wxExpandPath can convert these back!
 658  */
 659 wxChar *
 660 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 661 {
 662   static wxChar dest[_MAXPATHLEN];
 663
 664   if (filename == wxT(""))
 665     return (wxChar *) NULL;
 666
 667   wxStrcpy (dest, WXSTRINGCAST filename);
 668 #ifdef __WXMSW__
 669   wxUnix2DosFilename(dest);
 670 #endif
 671
 672   // Handle environment
 673   const wxChar *val = (const wxChar *) NULL;
 674   wxChar *tcp = (wxChar *) NULL;
 675   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 676      (tcp = wxStrstr (dest, val)) != NULL)
 677     {
 678         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 679         *tcp++ = wxT('$');
 680         *tcp++ = wxT('{');
 681         wxStrcpy (tcp, WXSTRINGCAST envname);
 682         wxStrcat (tcp, wxT("}"));
 683         wxStrcat (tcp, wxFileFunctionsBuffer);
 684     }
 685
 686   // Handle User's home (ignore root homes!)
 687   size_t len = 0;
 688   if ((val = wxGetUserHome (user)) != NULL &&
 689       (len = wxStrlen(val)) > 2 &&
 690       wxStrncmp(dest, val, len) == 0)
 691     {
 692       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 693       if (user != wxT(""))
 694              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 695       wxStrcat(wxFileFunctionsBuffer, dest + len);
 696       wxStrcpy (dest, wxFileFunctionsBuffer);
 697     }
 698
 699   return dest;
 700 }
 701
 702 // Return just the filename, not the path (basename)
 703 wxChar *wxFileNameFromPath (wxChar *path)
 704 {
 705     wxString p = path;
 706     wxString n = wxFileNameFromPath(p);
 707
 708     return path + p.length() - n.length();
 709 }
 710
 711 wxString wxFileNameFromPath (const wxString& path)
 712 {
 713     wxString name, ext;
 714     wxFileName::SplitPath(path, NULL, &name, &ext);
 715
 716     wxString fullname = name;
 717     if ( !ext.empty() )
 718     {
 719         fullname << wxFILE_SEP_EXT << ext;
 720     }
 721
 722     return fullname;
 723 }
 724
 725 // Return just the directory, or NULL if no directory
 726 wxChar *
 727 wxPathOnly (wxChar *path)
 728 {
 729     if (path && *path)
 730     {
 731         static wxChar buf[_MAXPATHLEN];
 732
 733         // Local copy
 734         wxStrcpy (buf, path);
 735
 736         int l = wxStrlen(path);
 737         int i = l - 1;
 738
 739         // Search backward for a backward or forward slash
 740         while (i > -1)
 741         {
 742 #if defined(__WXMAC__) && !defined(__DARWIN__)
 743             // Classic or Carbon CodeWarrior like
 744             // Carbon with Apple DevTools is Unix like
 745             if (path[i] == wxT(':') )
 746             {
 747                 buf[i] = 0;
 748                 return buf;
 749             }
 750 #else
 751             // Unix like or Windows
 752             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 753             {
 754                 buf[i] = 0;
 755                 return buf;
 756             }
 757 #endif
 758 #ifdef __VMS__
 759             if (path[i] == wxT(']'))
 760             {
 761                 buf[i+1] = 0;
 762                 return buf;
 763             }
 764 #endif
 765             i --;
 766         }
 767
 768 #if defined(__WXMSW__) || defined(__WXPM__)
 769         // Try Drive specifier
 770         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 771         {
 772             // A:junk --> A:. (since A:.\junk Not A:\junk)
 773             buf[2] = wxT('.');
 774             buf[3] = wxT('\0');
 775             return buf;
 776         }
 777 #endif
 778     }
 779     return (wxChar *) NULL;
 780 }
 781
 782 // Return just the directory, or NULL if no directory
 783 wxString wxPathOnly (const wxString& path)
 784 {
 785     if (path != wxT(""))
 786     {
 787         wxChar buf[_MAXPATHLEN];
 788
 789         // Local copy
 790         wxStrcpy (buf, WXSTRINGCAST path);
 791
 792         int l = path.Length();
 793         int i = l - 1;
 794
 795         // Search backward for a backward or forward slash
 796         while (i > -1)
 797         {
 798 #if defined(__WXMAC__) && !defined(__DARWIN__)
 799             // Classic or Carbon CodeWarrior like
 800             // Carbon with Apple DevTools is Unix like
 801             if (path[i] == wxT(':') )
 802             {
 803                 buf[i] = 0;
 804                 return wxString(buf);
 805             }
 806 #else
 807             // Unix like or Windows
 808             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 809             {
 810                 buf[i] = 0;
 811                 return wxString(buf);
 812             }
 813 #endif
 814 #ifdef __VMS__
 815             if (path[i] == wxT(']'))
 816             {
 817                 buf[i+1] = 0;
 818                 return wxString(buf);
 819             }
 820 #endif
 821             i --;
 822         }
 823
 824 #if defined(__WXMSW__) || defined(__WXPM__)
 825         // Try Drive specifier
 826         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 827         {
 828             // A:junk --> A:. (since A:.\junk Not A:\junk)
 829             buf[2] = wxT('.');
 830             buf[3] = wxT('\0');
 831             return wxString(buf);
 832         }
 833 #endif
 834     }
 835     return wxString(wxT(""));
 836 }
 837
 838 // Utility for converting delimiters in DOS filenames to UNIX style
 839 // and back again - or we get nasty problems with delimiters.
 840 // Also, convert to lower case, since case is significant in UNIX.
 841
 842 #if defined(__WXMAC__)
 843 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 844 {
 845 #ifdef __DARWIN__
 846     int         i;
 847     int         j;
 848     OSErr       theErr;
 849     OSStatus    theStatus;
 850     Boolean     isDirectory = false;
 851     Str255      theParentPath = "\p";
 852     FSSpec      theParentSpec;
 853     FSRef       theParentRef;
 854     char        theFileName[FILENAME_MAX];
 855     char        thePath[FILENAME_MAX];
 856
 857     strcpy(thePath, "");
 858
 859     // GD: Separate file name from path and make a FSRef to the parent
 860     //     directory. This is necessary since FSRefs cannot reference files
 861     //     that have not yet been created.
 862     //     Based on example code from Apple Technical Note TN2022
 863     //       http://developer.apple.com/technotes/tn/tn2022.html
 864
 865     // check whether we are converting a directory
 866     isDirectory = ((spec->name)[spec->name[0]] == ':');
 867     // count length of file name
 868     for (i = spec->name[0] - (isDirectory ? 1 : 0); ((spec->name[i] != ':') && (i > 0)); i--);
 869     // copy file name
 870     //   prepend path separator since it will later be appended to the path
 871     theFileName[0] = wxFILE_SEP_PATH;
 872     for (j = i + 1; j <= spec->name[0] - (isDirectory ? 1 : 0); j++) {
 873         theFileName[j - i] = spec->name[j];
 874     }
 875     theFileName[j - i] = '\0';
 876     // copy path if any
 877     for (j = 1; j <= i; j++) {
 878         theParentPath[++theParentPath[0]] = spec->name[j];
 879     }
 880     theErr = FSMakeFSSpec(spec->vRefNum, spec->parID, theParentPath, &theParentSpec);
 881     if (theErr == noErr) {
 882         // convert the FSSpec to an FSRef
 883         theErr = FSpMakeFSRef(&theParentSpec, &theParentRef);
 884     }
 885     if (theErr == noErr) {
 886         // get the POSIX path associated with the FSRef
 887         theStatus = FSRefMakePath(&theParentRef,
 888                                   (UInt8 *)thePath, sizeof(thePath));
 889     }
 890     if (theStatus == noErr) {
 891         // append file name to path
 892         //   includes previously prepended path separator
 893         strcat(thePath, theFileName);
 894     }
 895
 896     // create path string for return value
 897     wxString result( thePath ) ;
 898 #else
 899     Handle    myPath ;
 900     short     length ;
 901
 902     // get length of path and allocate handle
 903     FSpGetFullPath( spec , &length , &myPath ) ;
 904     ::SetHandleSize( myPath , length + 1 ) ;
 905     ::HLock( myPath ) ;
 906     (*myPath)[length] = 0 ;
 907     if ((length > 0) && ((*myPath)[length-1] == ':'))
 908         (*myPath)[length-1] = 0 ;
 909
 910     // create path string for return value
 911     wxString result( (char*) *myPath ) ;
 912
 913     // free allocated handle
 914     ::HUnlock( myPath ) ;
 915     ::DisposeHandle( myPath ) ;
 916 #endif
 917
 918     return result ;
 919 }
 920 #ifndef __DARWIN__
 921 // Mac file names are POSIX (Unix style) under Darwin
 922 // therefore the conversion functions below are not needed
 923
 924 static char sMacFileNameConversion[ 1000 ] ;
 925
 926 #endif
 927 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 928 {
 929         OSStatus err = noErr ;
 930 #ifdef __DARWIN__
 931     FSRef theRef;
 932
 933     // get the FSRef associated with the POSIX path
 934     err = FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
 935     // convert the FSRef to an FSSpec
 936     err = FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
 937 #else
 938         if ( strchr( path , ':' ) == NULL )
 939     {
 940         // try whether it is a volume / or a mounted volume
 941         strncpy( sMacFileNameConversion , path , 1000 ) ;
 942         sMacFileNameConversion[998] = 0 ;
 943         strcat( sMacFileNameConversion , ":" ) ;
 944         err = FSpLocationFromFullPath( strlen(sMacFileNameConversion) , sMacFileNameConversion , spec ) ;
 945     }
 946     else
 947     {
 948         err = FSpLocationFromFullPath( strlen(path) , path , spec ) ;
 949     }
 950 #endif
 951 }
 952
 953 #ifndef __DARWIN__
 954
 955 wxString wxMac2UnixFilename (const char *str)
 956 {
 957     char *s = sMacFileNameConversion ;
 958     strcpy( s , str ) ;
 959     if (s)
 960     {
 961         memmove( s+1 , s ,strlen( s ) + 1) ;
 962         if ( *s == ':' )
 963             *s = '.' ;
 964         else
 965             *s = '/' ;
 966
 967         while (*s)
 968         {
 969             if (*s == ':')
 970                 *s = '/';
 971             else
 972                 *s = wxTolower(*s);        // Case INDEPENDENT
 973             s++;
 974         }
 975     }
 976     return wxString(sMacFileNameConversion) ;
 977 }
 978
 979 wxString wxUnix2MacFilename (const char *str)
 980 {
 981     char *s = sMacFileNameConversion ;
 982     strcpy( s , str ) ;
 983     if (s)
 984     {
 985         if ( *s == '.' )
 986         {
 987             // relative path , since it goes on with slash which is translated to a :
 988             memmove( s , s+1 ,strlen( s ) ) ;
 989         }
 990         else if ( *s == '/' )
 991         {
 992             // absolute path -> on mac just start with the drive name
 993             memmove( s , s+1 ,strlen( s ) ) ;
 994         }
 995         else
 996         {
 997             wxASSERT_MSG( 1 , "unkown path beginning" ) ;
 998         }
 999         while (*s)
1000         {
1001             if (*s == '/' || *s == '\\')
1002             {
1003                 // convert any back-directory situations
1004                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
1005                 {
1006                     *s = ':';
1007                     memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
1008                 }
1009                 else
1010                     *s = ':';
1011             }
1012             s++ ;
1013         }
1014     }
1015     return wxString (sMacFileNameConversion) ;
1016 }
1017
1018 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
1019 {
1020     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
1021 }
1022
1023 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
1024 {
1025     wxString var = wxUnix2MacFilename( path ) ;
1026     wxMacFilename2FSSpec( var , spec ) ;
1027 }
1028 #endif // ! __DARWIN__
1029
1030 #endif // __WXMAC__
1031
1032 void
1033 wxDos2UnixFilename (char *s)
1034 {
1035   if (s)
1036     while (*s)
1037       {
1038         if (*s == '\\')
1039           *s = '/';
1040 #ifdef __WXMSW__
1041         else
1042           *s = wxTolower (*s);        // Case INDEPENDENT
1043 #endif
1044         s++;
1045       }
1046 }
1047
1048 void
1049 #if defined(__WXMSW__) || defined(__WXPM__)
1050 wxUnix2DosFilename (wxChar *s)
1051 #else
1052 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1053 #endif
1054 {
1055 // Yes, I really mean this to happen under DOS only! JACS
1056 #if defined(__WXMSW__) || defined(__WXPM__)
1057   if (s)
1058     while (*s)
1059       {
1060         if (*s == wxT('/'))
1061           *s = wxT('\\');
1062         s++;
1063       }
1064 #endif
1065 }
1066
1067 // Concatenate two files to form third
1068 bool
1069 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1070 {
1071   wxString outfile;
1072   if ( !wxGetTempFileName( wxT("cat"), outfile) )
1073       return FALSE;
1074
1075   FILE *fp1 = (FILE *) NULL;
1076   FILE *fp2 = (FILE *) NULL;
1077   FILE *fp3 = (FILE *) NULL;
1078   // Open the inputs and outputs
1079   if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
1080       (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
1081       (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
1082     {
1083       if (fp1)
1084         fclose (fp1);
1085       if (fp2)
1086         fclose (fp2);
1087       if (fp3)
1088         fclose (fp3);
1089       return FALSE;
1090     }
1091
1092   int ch;
1093   while ((ch = getc (fp1)) != EOF)
1094     (void) putc (ch, fp3);
1095   fclose (fp1);
1096
1097   while ((ch = getc (fp2)) != EOF)
1098     (void) putc (ch, fp3);
1099   fclose (fp2);
1100
1101   fclose (fp3);
1102   bool result = wxRenameFile(outfile, file3);
1103   return result;
1104 }
1105
1106 // Copy files
1107 bool
1108 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1109 {
1110 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1111     // CopyFile() copies file attributes and modification time too, so use it
1112     // instead of our code if available
1113     //
1114     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1115     if ( !::CopyFile(file1, file2, !overwrite) )
1116     {
1117         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1118                       file1.c_str(), file2.c_str());
1119
1120         return FALSE;
1121     }
1122 #elif defined(__WXPM__)
1123     if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
1124         return FALSE;
1125 #else // !Win32
1126
1127     wxStructStat fbuf;
1128     // get permissions of file1
1129     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1130     {
1131         // the file probably doesn't exist or we haven't the rights to read
1132         // from it anyhow
1133         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1134                       file1.c_str());
1135         return FALSE;
1136     }
1137
1138     // open file1 for reading
1139     wxFile fileIn(file1, wxFile::read);
1140     if ( !fileIn.IsOpened() )
1141         return FALSE;
1142
1143     // remove file2, if it exists. This is needed for creating
1144     // file2 with the correct permissions in the next step
1145     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1146     {
1147         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1148                       file2.c_str());
1149         return FALSE;
1150     }
1151
1152 #ifdef __UNIX__
1153     // reset the umask as we want to create the file with exactly the same
1154     // permissions as the original one
1155     mode_t oldUmask = umask( 0 );
1156 #endif // __UNIX__
1157
1158     // create file2 with the same permissions than file1 and open it for
1159     // writing
1160
1161     wxFile fileOut;
1162     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1163         return FALSE;
1164
1165 #ifdef __UNIX__
1166     /// restore the old umask
1167     umask(oldUmask);
1168 #endif // __UNIX__
1169
1170     // copy contents of file1 to file2
1171     char buf[4096];
1172     size_t count;
1173     for ( ;; )
1174     {
1175         count = fileIn.Read(buf, WXSIZEOF(buf));
1176         if ( fileIn.Error() )
1177             return FALSE;
1178
1179         // end of file?
1180         if ( !count )
1181             break;
1182
1183         if ( fileOut.Write(buf, count) < count )
1184             return FALSE;
1185     }
1186
1187     // we can expect fileIn to be closed successfully, but we should ensure
1188     // that fileOut was closed as some write errors (disk full) might not be
1189     // detected before doing this
1190     if ( !fileIn.Close() || !fileOut.Close() )
1191         return FALSE;
1192
1193 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1194     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1195     // however
1196     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1197     {
1198         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1199                       file2.c_str());
1200         return FALSE;
1201     }
1202 #endif // OS/2 || Mac
1203 #endif // __WXMSW__ && __WIN32__
1204
1205     return TRUE;
1206 }
1207
1208 bool
1209 wxRenameFile (const wxString& file1, const wxString& file2)
1210 {
1211   // Normal system call
1212   if ( wxRename (file1, file2) == 0 )
1213     return TRUE;
1214
1215   // Try to copy
1216   if (wxCopyFile(file1, file2)) {
1217     wxRemoveFile(file1);
1218     return TRUE;
1219   }
1220   // Give up
1221   return FALSE;
1222 }
1223
1224 bool wxRemoveFile(const wxString& file)
1225 {
1226 #if defined(__VISUALC__) \
1227  || defined(__BORLANDC__) \
1228  || defined(__WATCOMC__) \
1229  || defined(__GNUWIN32__)
1230   int res = wxRemove(file);
1231 #else
1232   int res = unlink(OS_FILENAME(file));
1233 #endif
1234
1235   return res == 0;
1236 }
1237
1238 bool wxMkdir(const wxString& dir, int perm)
1239 {
1240 #if defined(__WXMAC__) && !defined(__UNIX__)
1241   return (mkdir( dir , 0 ) == 0);
1242 #else // !Mac
1243     const wxChar *dirname = dir.c_str();
1244
1245     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1246     // for the GNU compiler
1247 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__) || defined(__WXMICROWIN__)
1248     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1249 #elif defined(__WXPM__)
1250     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1251 #elif defined(__DOS__)
1252   #if defined(__WATCOMC__)
1253     (void)perm;
1254     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1255   #elif defined(__DJGPP__)
1256     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1257   #else
1258     #error "Unsupported DOS compiler!"
1259   #endif
1260 #else  // !MSW, !DOS and !OS/2 VAC++
1261     (void)perm;
1262     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1263 #endif // !MSW/MSW
1264     {
1265         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1266
1267         return FALSE;
1268     }
1269
1270     return TRUE;
1271 #endif // Mac/!Mac
1272 }
1273
1274 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1275 {
1276 #ifdef __VMS__
1277   return FALSE; //to be changed since rmdir exists in VMS7.x
1278 #elif defined(__WXPM__)
1279   return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1280 #else
1281
1282 #ifdef __SALFORDC__
1283   return FALSE; // What to do?
1284 #else
1285   return (wxRmDir(OS_FILENAME(dir)) == 0);
1286 #endif
1287
1288 #endif
1289 }
1290
1291 // does the path exists? (may have or not '/' or '\\' at the end)
1292 bool wxPathExists(const wxChar *pszPathName)
1293 {
1294     wxString strPath(pszPathName);
1295
1296 #ifdef __WINDOWS__
1297     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1298     // so remove all trailing backslashes from the path - but don't do this for
1299     // the pathes "d:\" (which are different from "d:") nor for just "\"
1300     while ( wxEndsWithPathSeparator(strPath) )
1301     {
1302         size_t len = strPath.length();
1303         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1304             break;
1305
1306         strPath.Truncate(len - 1);
1307     }
1308 #endif // __WINDOWS__
1309
1310 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1311     // stat() can't cope with network paths
1312     DWORD ret = ::GetFileAttributes(strPath);
1313
1314     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1315 #else // !__WIN32__
1316
1317     wxStructStat st;
1318 #ifndef __VISAGECPP__
1319     return wxStat(pszPathName, &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1320 #else
1321     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1322     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1323 #endif
1324
1325 #endif // __WIN32__/!__WIN32__
1326 }
1327
1328 // Get a temporary filename, opening and closing the file.
1329 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1330 {
1331     wxString filename = wxFileName::CreateTempFileName(prefix);
1332     if ( filename.empty() )
1333         return NULL;
1334
1335     if ( buf )
1336         wxStrcpy(buf, filename);
1337     else
1338         buf = copystring(filename);
1339
1340     return buf;
1341 }
1342
1343 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1344 {
1345     buf = wxFileName::CreateTempFileName(prefix);
1346
1347     return !buf.empty();
1348 }
1349
1350 // Get first file name matching given wild card.
1351
1352 static wxDir *gs_dir = NULL;
1353 static wxString gs_dirPath;
1354
1355 wxString wxFindFirstFile(const wxChar *spec, int flags)
1356 {
1357     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1358     if ( gs_dirPath.IsEmpty() )
1359         gs_dirPath = wxT(".");
1360     if ( gs_dirPath.Last() != wxFILE_SEP_PATH )
1361         gs_dirPath << wxFILE_SEP_PATH;
1362
1363     if (gs_dir)
1364         delete gs_dir;
1365     gs_dir = new wxDir(gs_dirPath);
1366
1367     if ( !gs_dir->IsOpened() )
1368     {
1369         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1370         return wxEmptyString;
1371     }
1372
1373     int dirFlags = 0;
1374     switch (flags)
1375     {
1376         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1377         case wxFILE: dirFlags = wxDIR_FILES; break;
1378         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1379     }
1380
1381     wxString result;
1382     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1383     if ( result.IsEmpty() )
1384     {
1385         wxDELETE(gs_dir);
1386         return result;
1387     }
1388
1389     return gs_dirPath + result;
1390 }
1391
1392 wxString wxFindNextFile()
1393 {
1394     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1395
1396     wxString result;
1397     gs_dir->GetNext(&result);
1398
1399     if ( result.IsEmpty() )
1400     {
1401         wxDELETE(gs_dir);
1402         return result;
1403     }
1404
1405     return gs_dirPath + result;
1406 }
1407
1408
1409 // Get current working directory.
1410 // If buf is NULL, allocates space using new, else
1411 // copies into buf.
1412 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1413 {
1414     if ( !buf )
1415     {
1416         buf = new wxChar[sz + 1];
1417     }
1418
1419     bool ok = FALSE;
1420
1421     // for the compilers which have Unicode version of _getcwd(), call it
1422     // directly, for the others call the ANSI version and do the translation
1423 #if !wxUSE_UNICODE
1424     #define cbuf buf
1425 #else // wxUSE_UNICODE
1426     bool needsANSI = TRUE;
1427
1428     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1429         // This is not legal code as the compiler
1430         // is allowed destroy the wxCharBuffer.
1431         // wxCharBuffer c_buffer(sz);
1432         // char *cbuf = (char*)(const char*)c_buffer;
1433         char cbuf[_MAXPATHLEN];
1434     #endif
1435
1436     #ifdef HAVE_WGETCWD
1437         #if wxUSE_UNICODE_MSLU
1438             if ( wxGetOsVersion() != wxWIN95 )
1439         #else
1440             char *cbuf = NULL; // never really used because needsANSI will always be FALSE
1441         #endif
1442             {
1443                 ok = _wgetcwd(buf, sz) != NULL;
1444                 needsANSI = FALSE;
1445             }
1446     #endif
1447
1448     if ( needsANSI )
1449 #endif // wxUSE_UNICODE
1450     {
1451     #ifdef _MSC_VER
1452         ok = _getcwd(cbuf, sz) != NULL;
1453     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1454         FSSpec cwdSpec ;
1455         FCBPBRec pb;
1456         OSErr error;
1457         Str255  fileName ;
1458         pb.ioNamePtr = (StringPtr) &fileName;
1459         pb.ioVRefNum = 0;
1460         pb.ioRefNum = LMGetCurApRefNum();
1461         pb.ioFCBIndx = 0;
1462         error = PBGetFCBInfoSync(&pb);
1463         if ( error == noErr )
1464         {
1465             cwdSpec.vRefNum = pb.ioFCBVRefNum;
1466             cwdSpec.parID = pb.ioFCBParID;
1467             cwdSpec.name[0] = 0 ;
1468             wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1469
1470             strcpy( cbuf , res ) ;
1471             cbuf[res.length()]=0 ;
1472
1473             ok = TRUE;
1474         }
1475         else
1476         {
1477             ok = FALSE;
1478         }
1479     #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1480         APIRET rc;
1481         rc = ::DosQueryCurrentDir( 0 // current drive
1482                                   ,cbuf
1483                                   ,(PULONG)&sz
1484                                  );
1485         ok = rc != 0;
1486     #else // !Win32/VC++ !Mac !OS2
1487         ok = getcwd(cbuf, sz) != NULL;
1488     #endif // platform
1489
1490     #if wxUSE_UNICODE
1491         // finally convert the result to Unicode if needed
1492         wxConvFile.MB2WC(buf, cbuf, sz);
1493     #endif // wxUSE_UNICODE
1494     }
1495
1496     if ( !ok )
1497     {
1498         wxLogSysError(_("Failed to get the working directory"));
1499
1500         // VZ: the old code used to return "." on error which didn't make any
1501         //     sense at all to me - empty string is a better error indicator
1502         //     (NULL might be even better but I'm afraid this could lead to
1503         //     problems with the old code assuming the return is never NULL)
1504         buf[0] = _T('\0');
1505     }
1506     else // ok, but we might need to massage the path into the right format
1507     {
1508 #ifdef __DJGPP__
1509         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1510         //     with / deliminers. We don't like that.
1511         for (wxChar *ch = buf; *ch; ch++)
1512         {
1513             if (*ch == wxT('/'))
1514                 *ch = wxT('\\');
1515         }
1516 #endif // __DJGPP__
1517
1518 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1519 //      he needs Unix as opposed to Win32 pathnames
1520 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1521         // another example of DOS/Unix mix (Cygwin)
1522         wxString pathUnix = buf;
1523         cygwin_conv_to_full_win32_path(pathUnix, buf);
1524 #endif // __CYGWIN__
1525     }
1526
1527     return buf;
1528
1529 #if !wxUSE_UNICODE
1530     #undef cbuf
1531 #endif
1532 }
1533
1534 wxString wxGetCwd()
1535 {
1536     wxChar *buffer = new wxChar[_MAXPATHLEN];
1537     wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1538     wxString str( buffer );
1539     delete [] buffer;
1540
1541     return str;
1542 }
1543
1544 bool wxSetWorkingDirectory(const wxString& d)
1545 {
1546 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1547   return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1548 #elif defined(__WXPM__)
1549   return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1550 #elif defined(__WINDOWS__)
1551
1552 #ifdef __WIN32__
1553   return (bool)(SetCurrentDirectory(d) != 0);
1554 #else
1555   // Must change drive, too.
1556   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1557   if (isDriveSpec)
1558   {
1559     wxChar firstChar = d[0];
1560
1561     // To upper case
1562     if (firstChar > 90)
1563       firstChar = firstChar - 32;
1564
1565     // To a drive number
1566     unsigned int driveNo = firstChar - 64;
1567     if (driveNo > 0)
1568     {
1569        unsigned int noDrives;
1570        _dos_setdrive(driveNo, &noDrives);
1571     }
1572   }
1573   bool success = (chdir(WXSTRINGCAST d) == 0);
1574
1575   return success;
1576 #endif
1577
1578 #endif
1579 }
1580
1581 // Get the OS directory if appropriate (such as the Windows directory).
1582 // On non-Windows platform, probably just return the empty string.
1583 wxString wxGetOSDirectory()
1584 {
1585 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1586     wxChar buf[256];
1587     GetWindowsDirectory(buf, 256);
1588     return wxString(buf);
1589 #else
1590     return wxEmptyString;
1591 #endif
1592 }
1593
1594 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1595 {
1596     size_t len = wxStrlen(pszFileName);
1597
1598     return len && wxIsPathSeparator(pszFileName[len - 1]);
1599 }
1600
1601 // find a file in a list of directories, returns false if not found
1602 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1603 {
1604     // we assume that it's not empty
1605     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1606                  _T("empty file name in wxFindFileInPath"));
1607
1608     // skip path separator in the beginning of the file name if present
1609     if ( wxIsPathSeparator(*pszFile) )
1610         pszFile++;
1611
1612     // copy the path (strtok will modify it)
1613     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1614     wxStrcpy(szPath, pszPath);
1615
1616     wxString strFile;
1617     wxChar *pc, *save_ptr;
1618     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1619           pc != NULL;
1620           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1621     {
1622         // search for the file in this directory
1623         strFile = pc;
1624         if ( !wxEndsWithPathSeparator(pc) )
1625             strFile += wxFILE_SEP_PATH;
1626         strFile += pszFile;
1627
1628         if ( wxFileExists(strFile) ) {
1629             *pStr = strFile;
1630             break;
1631         }
1632     }
1633
1634     // suppress warning about unused variable save_ptr when wxStrtok() is a
1635     // macro which throws away its third argument
1636     save_ptr = pc;
1637
1638     delete [] szPath;
1639
1640     return pc != NULL;  // if true => we breaked from the loop
1641 }
1642
1643 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1644                              wxString *pstrPath,
1645                              wxString *pstrName,
1646                              wxString *pstrExt)
1647 {
1648     // it can be empty, but it shouldn't be NULL
1649     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1650
1651     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1652 }
1653
1654 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1655 {
1656     wxStructStat buf;
1657     wxStat( filename, &buf);
1658
1659     return buf.st_mtime;
1660 }
1661
1662
1663 //------------------------------------------------------------------------
1664 // wild character routines
1665 //------------------------------------------------------------------------
1666
1667 bool wxIsWild( const wxString& pattern )
1668 {
1669     wxString tmp = pattern;
1670     wxChar *pat = WXSTRINGCAST(tmp);
1671     while (*pat)
1672     {
1673         switch (*pat++)
1674         {
1675         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1676             return TRUE;
1677         case wxT('\\'):
1678             if (!*pat++)
1679                 return FALSE;
1680         }
1681     }
1682     return FALSE;
1683 }
1684
1685 /*
1686 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1687 *
1688 * The match procedure is public domain code (from ircII's reg.c)
1689 */
1690
1691 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1692 {
1693         if (text.empty())
1694         {
1695                 /* Match if both are empty. */
1696                 return pat.empty();
1697         }
1698
1699         const wxChar *m = pat.c_str(),
1700         *n = text.c_str(),
1701         *ma = NULL,
1702         *na = NULL,
1703         *mp = NULL,
1704         *np = NULL;
1705         int just = 0,
1706         pcount = 0,
1707         acount = 0,
1708         count = 0;
1709
1710         if (dot_special && (*n == wxT('.')))
1711         {
1712                 /* Never match so that hidden Unix files
1713                  * are never found. */
1714                 return FALSE;
1715         }
1716
1717         for (;;)
1718         {
1719                 if (*m == wxT('*'))
1720                 {
1721                         ma = ++m;
1722                         na = n;
1723                         just = 1;
1724                         mp = NULL;
1725                         acount = count;
1726                 }
1727                 else if (*m == wxT('?'))
1728                 {
1729                         m++;
1730                         if (!*n++)
1731                         return FALSE;
1732                 }
1733                 else
1734                 {
1735                         if (*m == wxT('\\'))
1736                         {
1737                                 m++;
1738                                 /* Quoting "nothing" is a bad thing */
1739                                 if (!*m)
1740                                 return FALSE;
1741                         }
1742                         if (!*m)
1743                         {
1744                                 /*
1745                                 * If we are out of both strings or we just
1746                                 * saw a wildcard, then we can say we have a
1747                                 * match
1748                                 */
1749                                 if (!*n)
1750                                 return TRUE;
1751                                 if (just)
1752                                 return TRUE;
1753                                 just = 0;
1754                                 goto not_matched;
1755                         }
1756                         /*
1757                         * We could check for *n == NULL at this point, but
1758                         * since it's more common to have a character there,
1759                         * check to see if they match first (m and n) and
1760                         * then if they don't match, THEN we can check for
1761                         * the NULL of n
1762                         */
1763                         just = 0;
1764                         if (*m == *n)
1765                         {
1766                                 m++;
1767                                 if (*n == wxT(' '))
1768                                 mp = NULL;
1769                                 count++;
1770                                 n++;
1771                         }
1772                         else
1773                         {
1774
1775                                 not_matched:
1776
1777                                 /*
1778                                 * If there are no more characters in the
1779                                 * string, but we still need to find another
1780                                 * character (*m != NULL), then it will be
1781                                 * impossible to match it
1782                                 */
1783                                 if (!*n)
1784                                 return FALSE;
1785                                 if (mp)
1786                                 {
1787                                         m = mp;
1788                                         if (*np == wxT(' '))
1789                                         {
1790                                                 mp = NULL;
1791                                                 goto check_percent;
1792                                         }
1793                                         n = ++np;
1794                                         count = pcount;
1795                                 }
1796                                 else
1797                                 check_percent:
1798
1799                                 if (ma)
1800                                 {
1801                                         m = ma;
1802                                         n = ++na;
1803                                         count = acount;
1804                                 }
1805                                 else
1806                                 return FALSE;
1807                         }
1808                 }
1809         }
1810 }
1811
1812
1813 #ifdef __VISUALC__
1814     #pragma warning(default:4706)   // assignment within conditional expression
1815 #endif // VC++