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 __GNUWIN32__
  97     #include <wchar.h>
  98     #ifndef __TWIN32__
  99         #include <sys/unistd.h>
 100     #endif
 101 #endif
 102
 103 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
 104                     // this (3.1 I believe) and how to test for it.
 105                     // If this works for Borland 4.0 as well, then no worries.
 106     #include <dir.h>
 107 #endif
 108
 109 #ifdef __SALFORDC__
 110     #include <dir.h>
 111     #include <unix.h>
 112 #endif
 113
 114 #include "wx/setup.h"
 115 #include "wx/log.h"
 116
 117 // No, Cygwin doesn't appear to have fnmatch.h after all.
 118 #if defined(HAVE_FNMATCH_H)
 119     #include "fnmatch.h"
 120 #endif
 121
 122 #ifdef __WINDOWS__
 123     #include <windows.h>
 124 #endif
 125
 126 // ----------------------------------------------------------------------------
 127 // constants
 128 // ----------------------------------------------------------------------------
 129
 130 #define _MAXPATHLEN 500
 131
 132 extern wxChar *wxBuffer;
 133
 134 #ifdef __WXMAC__
 135 #    include "MoreFiles.h"
 136 #    include "MoreFilesExtras.h"
 137 #    include "FullPath.h"
 138 #    include "FSpCompat.h"
 139 #endif
 140
 141 IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 142
 143 // ----------------------------------------------------------------------------
 144 // private globals
 145 // ----------------------------------------------------------------------------
 146
 147 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 148
 149 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 150 //
 151 // VisualAge C++ V4.0 cannot have any external linkage const decs
 152 // in headers included by more than one primary source
 153 //
 154 const off_t wxInvalidOffset = (off_t)-1;
 155 #endif
 156
 157 // ----------------------------------------------------------------------------
 158 // macros
 159 // ----------------------------------------------------------------------------
 160
 161 // we need to translate Mac filenames before passing them to OS functions
 162 #define OS_FILENAME(s) (s.fn_str())
 163
 164 // ============================================================================
 165 // implementation
 166 // ============================================================================
 167
 168 void wxPathList::Add (const wxString& path)
 169 {
 170     wxStringList::Add (WXSTRINGCAST path);
 171 }
 172
 173 // Add paths e.g. from the PATH environment variable
 174 void wxPathList::AddEnvList (const wxString& envVariable)
 175 {
 176   static const wxChar PATH_TOKS[] =
 177 #ifdef __WINDOWS__
 178         wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 179 #else
 180         wxT(" :;");
 181 #endif
 182
 183   wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 184   if (val && *val)
 185     {
 186       wxChar *s = copystring (val);
 187       wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 188
 189       if (token)
 190       {
 191           Add (copystring (token));
 192           while (token)
 193           {
 194               if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
 195                   Add (wxString(token));
 196           }
 197       }
 198
 199       // suppress warning about unused variable save_ptr when wxStrtok() is a
 200       // macro which throws away its third argument
 201       save_ptr = token;
 202
 203       delete [] s;
 204     }
 205 }
 206
 207 // Given a full filename (with path), ensure that that file can
 208 // be accessed again USING FILENAME ONLY by adding the path
 209 // to the list if not already there.
 210 void wxPathList::EnsureFileAccessible (const wxString& path)
 211 {
 212     wxString path_only(wxPathOnly(path));
 213     if ( !path_only.IsEmpty() )
 214     {
 215         if ( !Member(path_only) )
 216             Add(path_only);
 217     }
 218 }
 219
 220 bool wxPathList::Member (const wxString& path)
 221 {
 222   for (wxNode * node = First (); node != NULL; node = node->Next ())
 223   {
 224       wxString path2((wxChar *) node->Data ());
 225       if (
 226 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 227       // Case INDEPENDENT
 228           path.CompareTo (path2, wxString::ignoreCase) == 0
 229 #else
 230       // Case sensitive File System
 231           path.CompareTo (path2) == 0
 232 #endif
 233         )
 234         return TRUE;
 235   }
 236   return FALSE;
 237 }
 238
 239 wxString wxPathList::FindValidPath (const wxString& file)
 240 {
 241   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 242     return wxString(wxFileFunctionsBuffer);
 243
 244   wxChar buf[_MAXPATHLEN];
 245   wxStrcpy(buf, wxFileFunctionsBuffer);
 246
 247   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 248   filename = IsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 249
 250   for (wxNode * node = First (); node; node = node->Next ())
 251     {
 252       wxChar *path = (wxChar *) node->Data ();
 253       wxStrcpy (wxFileFunctionsBuffer, path);
 254       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 255       if (ch != wxT('\\') && ch != wxT('/'))
 256         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 257       wxStrcat (wxFileFunctionsBuffer, filename);
 258 #ifdef __WINDOWS__
 259       Unix2DosFilename (wxFileFunctionsBuffer);
 260 #endif
 261       if (wxFileExists (wxFileFunctionsBuffer))
 262       {
 263         return wxString(wxFileFunctionsBuffer);        // Found!
 264       }
 265     }                                // for()
 266
 267   return wxString(wxT(""));                    // Not found
 268 }
 269
 270 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 271 {
 272     wxString f = FindValidPath(file);
 273     if ( wxIsAbsolutePath(f) )
 274         return f;
 275
 276     wxString buf;
 277     wxGetWorkingDirectory(buf.GetWriteBuf(_MAXPATHLEN), _MAXPATHLEN - 1);
 278     buf.UngetWriteBuf();
 279     if ( !wxEndsWithPathSeparator(buf) )
 280     {
 281         buf += wxFILE_SEP_PATH;
 282     }
 283     buf += f;
 284
 285     return buf;
 286 }
 287
 288 bool
 289 wxFileExists (const wxString& filename)
 290 {
 291 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 292     // GetFileAttributes can copy with network paths
 293     DWORD ret = GetFileAttributes(filename);
 294     DWORD isDir = (ret & FILE_ATTRIBUTE_DIRECTORY);
 295     return ((ret != 0xffffffff) && (isDir == 0));
 296 #else
 297     wxStructStat stbuf;
 298     if ( !filename.empty() && wxStat (OS_FILENAME(filename), &stbuf) == 0 )
 299         return TRUE;
 300
 301     return FALSE;
 302 #endif
 303 }
 304
 305 bool
 306 wxIsAbsolutePath (const wxString& filename)
 307 {
 308     if (filename != wxT(""))
 309     {
 310 #if defined(__WXMAC__) && !defined(__DARWIN__)
 311         // Classic or Carbon CodeWarrior like
 312         // Carbon with Apple DevTools is Unix like
 313
 314         // This seems wrong to me, but there is no fix. since
 315         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 316         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 317         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 318             return TRUE ;
 319 #else
 320         // Unix like or Windows
 321         if (filename[0] == wxT('/'))
 322             return TRUE;
 323 #endif
 324 #ifdef __VMS__
 325         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 326             return TRUE;
 327 #endif
 328 #ifdef __WINDOWS__
 329         // MSDOS like
 330         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 331             return TRUE;
 332 #endif
 333     }
 334     return FALSE ;
 335 }
 336
 337 /*
 338  * Strip off any extension (dot something) from end of file,
 339  * IF one exists. Inserts zero into buffer.
 340  *
 341  */
 342
 343 void wxStripExtension(wxChar *buffer)
 344 {
 345   int len = wxStrlen(buffer);
 346   int i = len-1;
 347   while (i > 0)
 348   {
 349     if (buffer[i] == wxT('.'))
 350     {
 351       buffer[i] = 0;
 352       break;
 353     }
 354     i --;
 355   }
 356 }
 357
 358 void wxStripExtension(wxString& buffer)
 359 {
 360   size_t len = buffer.Length();
 361   size_t i = len-1;
 362   while (i > 0)
 363   {
 364     if (buffer.GetChar(i) == wxT('.'))
 365     {
 366       buffer = buffer.Left(i);
 367       break;
 368     }
 369     i --;
 370   }
 371 }
 372
 373 // Destructive removal of /./ and /../ stuff
 374 wxChar *wxRealPath (wxChar *path)
 375 {
 376 #ifdef __WXMSW__
 377   static const wxChar SEP = wxT('\\');
 378   Unix2DosFilename(path);
 379 #else
 380   static const wxChar SEP = wxT('/');
 381 #endif
 382   if (path[0] && path[1]) {
 383     /* MATTHEW: special case "/./x" */
 384     wxChar *p;
 385     if (path[2] == SEP && path[1] == wxT('.'))
 386       p = &path[0];
 387     else
 388       p = &path[2];
 389     for (; *p; p++)
 390       {
 391         if (*p == SEP)
 392           {
 393             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 394               {
 395                 wxChar *q;
 396                 for (q = p - 1; q >= path && *q != SEP; q--);
 397                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 398                     && (q - 1 <= path || q[-1] != SEP))
 399                   {
 400                     wxStrcpy (q, p + 3);
 401                     if (path[0] == wxT('\0'))
 402                       {
 403                         path[0] = SEP;
 404                         path[1] = wxT('\0');
 405                       }
 406 #ifdef __WXMSW__
 407                     /* Check that path[2] is NULL! */
 408                     else if (path[1] == wxT(':') && !path[2])
 409                       {
 410                         path[2] = SEP;
 411                         path[3] = wxT('\0');
 412                       }
 413 #endif
 414                     p = q - 1;
 415                   }
 416               }
 417             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 418               wxStrcpy (p, p + 2);
 419           }
 420       }
 421   }
 422   return path;
 423 }
 424
 425 // Must be destroyed
 426 wxChar *wxCopyAbsolutePath(const wxString& filename)
 427 {
 428   if (filename == wxT(""))
 429     return (wxChar *) NULL;
 430
 431   if (! IsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 432     wxChar  buf[_MAXPATHLEN];
 433     buf[0] = wxT('\0');
 434     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 435     wxChar ch = buf[wxStrlen(buf) - 1];
 436 #ifdef __WXMSW__
 437     if (ch != wxT('\\') && ch != wxT('/'))
 438         wxStrcat(buf, wxT("\\"));
 439 #else
 440     if (ch != wxT('/'))
 441         wxStrcat(buf, wxT("/"));
 442 #endif
 443     wxStrcat(buf, wxFileFunctionsBuffer);
 444     return copystring( wxRealPath(buf) );
 445   }
 446   return copystring( wxFileFunctionsBuffer );
 447 }
 448
 449 /*-
 450  Handles:
 451    ~/ => home dir
 452    ~user/ => user's home dir
 453    If the environment variable a = "foo" and b = "bar" then:
 454    Unix:
 455         $a        =>        foo
 456         $a$b        =>        foobar
 457         $a.c        =>        foo.c
 458         xxx$a        =>        xxxfoo
 459         ${a}!        =>        foo!
 460         $(b)!        =>        bar!
 461         \$a        =>        \$a
 462    MSDOS:
 463         $a        ==>        $a
 464         $(a)        ==>        foo
 465         $(a)$b        ==>        foo$b
 466         $(a)$(b)==>        foobar
 467         test.$$        ==>        test.$$
 468  */
 469
 470 /* input name in name, pathname output to buf. */
 471
 472 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 473 {
 474     register wxChar *d, *s, *nm;
 475     wxChar          lnm[_MAXPATHLEN];
 476     int             q;
 477
 478     // Some compilers don't like this line.
 479 //    const wxChar    trimchars[] = wxT("\n \t");
 480
 481     wxChar      trimchars[4];
 482     trimchars[0] = wxT('\n');
 483     trimchars[1] = wxT(' ');
 484     trimchars[2] = wxT('\t');
 485     trimchars[3] = 0;
 486
 487 #ifdef __WXMSW__
 488      const wxChar     SEP = wxT('\\');
 489 #else
 490      const wxChar     SEP = wxT('/');
 491 #endif
 492     buf[0] = wxT('\0');
 493     if (name == NULL || *name == wxT('\0'))
 494         return buf;
 495     nm = copystring(name); // Make a scratch copy
 496     wxChar *nm_tmp = nm;
 497
 498     /* Skip leading whitespace and cr */
 499     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 500         nm++;
 501     /* And strip off trailing whitespace and cr */
 502     s = nm + (q = wxStrlen(nm)) - 1;
 503     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 504         *s = wxT('\0');
 505
 506     s = nm;
 507     d = lnm;
 508 #ifdef __WXMSW__
 509     q = FALSE;
 510 #else
 511     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 512 #endif
 513
 514     /* Expand inline environment variables */
 515 #ifdef __VISAGECPP__
 516     while (*d)
 517     {
 518       *d++ = *s;
 519       if(*s == wxT('\\'))
 520       {
 521         *(d - 1) = *++s;
 522         if (*d)
 523         {
 524           s++;
 525           continue;
 526         }
 527         else
 528            break;
 529       }
 530       else
 531 #else
 532     while ((*d++ = *s) != 0) {
 533 #  ifndef __WXMSW__
 534         if (*s == wxT('\\')) {
 535             if ((*(d - 1) = *++s)) {
 536                 s++;
 537                 continue;
 538             } else
 539                 break;
 540         } else
 541 #  endif
 542 #endif
 543 #ifdef __WXMSW__
 544         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 545 #else
 546         if (*s++ == wxT('$'))
 547 #endif
 548         {
 549             register wxChar  *start = d;
 550             register int     braces = (*s == wxT('{') || *s == wxT('('));
 551             register wxChar  *value;
 552             while ((*d++ = *s) != 0)
 553                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 554                     break;
 555                 else
 556                     s++;
 557             *--d = 0;
 558             value = wxGetenv(braces ? start + 1 : start);
 559             if (value) {
 560                 for ((d = start - 1); (*d++ = *value++) != 0;);
 561                 d--;
 562                 if (braces && *s)
 563                     s++;
 564             }
 565         }
 566     }
 567
 568     /* Expand ~ and ~user */
 569     nm = lnm;
 570     if (nm[0] == wxT('~') && !q)
 571     {
 572         /* prefix ~ */
 573         if (nm[1] == SEP || nm[1] == 0)
 574         {        /* ~/filename */
 575         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 576             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 577                 if (*++nm)
 578                     nm++;
 579             }
 580         } else
 581         {                /* ~user/filename */
 582             register wxChar  *nnm;
 583             register wxChar  *home;
 584             for (s = nm; *s && *s != SEP; s++);
 585             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 586             was_sep = (*s == SEP);
 587             nnm = *s ? s + 1 : s;
 588             *s = 0;
 589         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 590             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 591                if (was_sep) /* replace only if it was there: */
 592                    *s = SEP;
 593                 s = NULL;
 594             } else {
 595                 nm = nnm;
 596                 s = home;
 597             }
 598         }
 599     }
 600
 601     d = buf;
 602     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 603         /* Copy home dir */
 604         while (wxT('\0') != (*d++ = *s++))
 605           /* loop */;
 606         // Handle root home
 607         if (d - 1 > buf && *(d - 2) != SEP)
 608           *(d - 1) = SEP;
 609     }
 610     s = nm;
 611     while ((*d++ = *s++) != 0);
 612     delete[] nm_tmp; // clean up alloc
 613     /* Now clean up the buffer */
 614     return wxRealPath(buf);
 615 }
 616
 617 /* Contract Paths to be build upon an environment variable
 618    component:
 619
 620    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 621
 622    The call wxExpandPath can convert these back!
 623  */
 624 wxChar *
 625 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 626 {
 627   static wxChar dest[_MAXPATHLEN];
 628
 629   if (filename == wxT(""))
 630     return (wxChar *) NULL;
 631
 632   wxStrcpy (dest, WXSTRINGCAST filename);
 633 #ifdef __WXMSW__
 634   Unix2DosFilename(dest);
 635 #endif
 636
 637   // Handle environment
 638   const wxChar *val = (const wxChar *) NULL;
 639   wxChar *tcp = (wxChar *) NULL;
 640   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 641      (tcp = wxStrstr (dest, val)) != NULL)
 642     {
 643         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 644         *tcp++ = wxT('$');
 645         *tcp++ = wxT('{');
 646         wxStrcpy (tcp, WXSTRINGCAST envname);
 647         wxStrcat (tcp, wxT("}"));
 648         wxStrcat (tcp, wxFileFunctionsBuffer);
 649     }
 650
 651   // Handle User's home (ignore root homes!)
 652   size_t len = 0;
 653   if ((val = wxGetUserHome (user)) != NULL &&
 654       (len = wxStrlen(val)) > 2 &&
 655       wxStrncmp(dest, val, len) == 0)
 656     {
 657       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 658       if (user != wxT(""))
 659              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 660 #ifdef __WXMSW__
 661 //      strcat(wxFileFunctionsBuffer, "\\");
 662 #else
 663 //      strcat(wxFileFunctionsBuffer, "/");
 664 #endif
 665       wxStrcat(wxFileFunctionsBuffer, dest + len);
 666       wxStrcpy (dest, wxFileFunctionsBuffer);
 667     }
 668
 669   return dest;
 670 }
 671
 672 // Return just the filename, not the path
 673 // (basename)
 674 wxChar *wxFileNameFromPath (wxChar *path)
 675 {
 676     if (path)
 677     {
 678         register wxChar *tcp;
 679
 680         tcp = path + wxStrlen (path);
 681         while (--tcp >= path)
 682         {
 683 #if defined(__WXMAC__) && !defined(__DARWIN__)
 684             // Classic or Carbon CodeWarrior like
 685             // Carbon with Apple DevTools is Unix like
 686             if (*tcp == wxT(':'))
 687                 return tcp + 1;
 688 #else
 689             // Unix like or Windows
 690             if (*tcp == wxT('/') || *tcp == wxT('\\'))
 691                 return tcp + 1;
 692 #endif
 693 #ifdef __VMS__
 694             if (*tcp == wxT(':') || *tcp == wxT(']'))
 695                 return tcp + 1;
 696 #endif
 697         } /* while */
 698 #if defined(__WXMSW__) || defined(__WXPM__)
 699         // MSDOS like
 700         if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 701             return path + 2;
 702 #endif
 703     }
 704     return path;
 705 }
 706
 707 wxString wxFileNameFromPath (const wxString& path1)
 708 {
 709     if (path1 != wxT(""))
 710     {
 711         wxChar *path = WXSTRINGCAST path1 ;
 712         register wxChar *tcp;
 713
 714         tcp = path + wxStrlen (path);
 715         while (--tcp >= path)
 716         {
 717 #if defined(__WXMAC__) && !defined(__DARWIN__)
 718             // Classic or Carbon CodeWarrior like
 719             // Carbon with Apple DevTools is Unix like
 720             if (*tcp == wxT(':') )
 721                 return wxString(tcp + 1);
 722 #else
 723             // Unix like or Windows
 724             if (*tcp == wxT('/') || *tcp == wxT('\\'))
 725                 return wxString(tcp + 1);
 726 #endif
 727 #ifdef __VMS__
 728             if (*tcp == wxT(':') || *tcp == wxT(']'))
 729                 return wxString(tcp + 1);
 730 #endif
 731         } /* while */
 732 #if defined(__WXMSW__) || defined(__WXPM__)
 733         // MSDOS like
 734         if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 735             return wxString(path + 2);
 736 #endif
 737     }
 738     // Yes, this should return the path, not an empty string, otherwise
 739     // we get "thing.txt" -> "".
 740     return path1;
 741 }
 742
 743 // Return just the directory, or NULL if no directory
 744 wxChar *
 745 wxPathOnly (wxChar *path)
 746 {
 747     if (path && *path)
 748     {
 749         static wxChar buf[_MAXPATHLEN];
 750
 751         // Local copy
 752         wxStrcpy (buf, path);
 753
 754         int l = wxStrlen(path);
 755         int i = l - 1;
 756
 757         // Search backward for a backward or forward slash
 758         while (i > -1)
 759         {
 760 #if defined(__WXMAC__) && !defined(__DARWIN__)
 761             // Classic or Carbon CodeWarrior like
 762             // Carbon with Apple DevTools is Unix like
 763             if (path[i] == wxT(':') )
 764             {
 765                 buf[i] = 0;
 766                 return buf;
 767             }
 768 #else
 769             // Unix like or Windows
 770             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 771             {
 772                 buf[i] = 0;
 773                 return buf;
 774             }
 775 #endif
 776 #ifdef __VMS__
 777             if (path[i] == wxT(']'))
 778             {
 779                 buf[i+1] = 0;
 780                 return buf;
 781             }
 782 #endif
 783             i --;
 784         }
 785
 786 #if defined(__WXMSW__) || defined(__WXPM__)
 787         // Try Drive specifier
 788         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 789         {
 790             // A:junk --> A:. (since A:.\junk Not A:\junk)
 791             buf[2] = wxT('.');
 792             buf[3] = wxT('\0');
 793             return buf;
 794         }
 795 #endif
 796     }
 797     return (wxChar *) NULL;
 798 }
 799
 800 // Return just the directory, or NULL if no directory
 801 wxString wxPathOnly (const wxString& path)
 802 {
 803     if (path != wxT(""))
 804     {
 805         wxChar buf[_MAXPATHLEN];
 806
 807         // Local copy
 808         wxStrcpy (buf, WXSTRINGCAST path);
 809
 810         int l = path.Length();
 811         int i = l - 1;
 812
 813         // Search backward for a backward or forward slash
 814         while (i > -1)
 815         {
 816 #if defined(__WXMAC__) && !defined(__DARWIN__)
 817             // Classic or Carbon CodeWarrior like
 818             // Carbon with Apple DevTools is Unix like
 819             if (path[i] == wxT(':') )
 820             {
 821                 buf[i] = 0;
 822                 return wxString(buf);
 823             }
 824 #else
 825             // Unix like or Windows
 826             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 827             {
 828                 buf[i] = 0;
 829                 return wxString(buf);
 830             }
 831 #endif
 832 #ifdef __VMS__
 833             if (path[i] == wxT(']'))
 834             {
 835                 buf[i+1] = 0;
 836                 return wxString(buf);
 837             }
 838 #endif
 839             i --;
 840         }
 841
 842 #if defined(__WXMSW__) || defined(__WXPM__)
 843         // Try Drive specifier
 844         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 845         {
 846             // A:junk --> A:. (since A:.\junk Not A:\junk)
 847             buf[2] = wxT('.');
 848             buf[3] = wxT('\0');
 849             return wxString(buf);
 850         }
 851 #endif
 852     }
 853     return wxString(wxT(""));
 854 }
 855
 856 // Utility for converting delimiters in DOS filenames to UNIX style
 857 // and back again - or we get nasty problems with delimiters.
 858 // Also, convert to lower case, since case is significant in UNIX.
 859
 860 #if defined(__WXMAC__)
 861 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 862 {
 863 #ifdef __DARWIN__
 864     FSRef theRef;
 865     char  thePath[FILENAME_MAX];
 866
 867     // convert the FSSpec to an FSRef
 868     (void) FSpMakeFSRef( spec, &theRef );
 869     // get the POSIX path associated with the FSRef
 870     (void) FSRefMakePath( &theRef, (UInt8 *)thePath, sizeof(thePath) );
 871
 872     // create path string for return value
 873     wxString result( thePath ) ;
 874 #else
 875     Handle    myPath ;
 876     short     length ;
 877
 878     // get length of path and allocate handle
 879     FSpGetFullPath( spec , &length , &myPath ) ;
 880     ::SetHandleSize( myPath , length + 1 ) ;
 881     ::HLock( myPath ) ;
 882     (*myPath)[length] = 0 ;
 883     if ((length > 0) && ((*myPath)[length-1] == ':'))
 884         (*myPath)[length-1] = 0 ;
 885
 886     // create path string for return value
 887     wxString result( (char*) *myPath ) ;
 888
 889     // free allocated handle
 890     ::HUnlock( myPath ) ;
 891     ::DisposeHandle( myPath ) ;
 892 #endif
 893
 894     return result ;
 895 }
 896
 897 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 898 {
 899 #ifdef __DARWIN__
 900     FSRef theRef;
 901
 902     // get the FSRef associated with the POSIX path
 903     (void) FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
 904     // convert the FSRef to an FSSpec
 905     (void) FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
 906 #else
 907     FSpLocationFromFullPath( strlen(path) , path , spec ) ;
 908 #endif
 909 }
 910
 911 #ifndef __DARWIN__
 912 // Mac file names are POSIX (Unix style) under Darwin
 913 // therefore the conversion functions below are not needed
 914
 915 static char sMacFileNameConversion[ 1000 ] ;
 916
 917 wxString wxMac2UnixFilename (const char *str)
 918 {
 919     char *s = sMacFileNameConversion ;
 920     strcpy( s , str ) ;
 921     if (s)
 922     {
 923         memmove( s+1 , s ,strlen( s ) + 1) ;
 924         if ( *s == ':' )
 925             *s = '.' ;
 926         else
 927             *s = '/' ;
 928
 929         while (*s)
 930         {
 931             if (*s == ':')
 932                 *s = '/';
 933             else
 934                 *s = wxTolower(*s);        // Case INDEPENDENT
 935             s++;
 936         }
 937     }
 938     return wxString(sMacFileNameConversion) ;
 939 }
 940
 941 wxString wxUnix2MacFilename (const char *str)
 942 {
 943     char *s = sMacFileNameConversion ;
 944     strcpy( s , str ) ;
 945     if (s)
 946     {
 947         if ( *s == '.' )
 948         {
 949             // relative path , since it goes on with slash which is translated to a :
 950             memmove( s , s+1 ,strlen( s ) ) ;
 951         }
 952         else if ( *s == '/' )
 953         {
 954             // absolute path -> on mac just start with the drive name
 955             memmove( s , s+1 ,strlen( s ) ) ;
 956         }
 957         else
 958         {
 959             wxASSERT_MSG( 1 , "unkown path beginning" ) ;
 960         }
 961         while (*s)
 962         {
 963             if (*s == '/' || *s == '\\')
 964             {
 965                 // convert any back-directory situations
 966                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
 967                 {
 968                     *s = ':';
 969                     memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
 970                 }
 971                 else
 972                     *s = ':';
 973             }
 974             s++ ;
 975         }
 976     }
 977     return wxString (sMacFileNameConversion) ;
 978 }
 979
 980 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
 981 {
 982     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
 983 }
 984
 985 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
 986 {
 987     wxString var = wxUnix2MacFilename( path ) ;
 988     wxMacFilename2FSSpec( var , spec ) ;
 989 }
 990 #endif // ! __DARWIN__
 991
 992 #endif // __WXMAC__
 993
 994 void
 995 wxDos2UnixFilename (char *s)
 996 {
 997   if (s)
 998     while (*s)
 999       {
1000         if (*s == '\\')
1001           *s = '/';
1002 #ifdef __WXMSW__
1003         else
1004           *s = wxTolower (*s);        // Case INDEPENDENT
1005 #endif
1006         s++;
1007       }
1008 }
1009
1010 void
1011 #if defined(__WXMSW__) || defined(__WXPM__)
1012 wxUnix2DosFilename (wxChar *s)
1013 #else
1014 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1015 #endif
1016 {
1017 // Yes, I really mean this to happen under DOS only! JACS
1018 #if defined(__WXMSW__) || defined(__WXPM__)
1019   if (s)
1020     while (*s)
1021       {
1022         if (*s == wxT('/'))
1023           *s = wxT('\\');
1024         s++;
1025       }
1026 #endif
1027 }
1028
1029 // Concatenate two files to form third
1030 bool
1031 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1032 {
1033   wxString outfile;
1034   if ( !wxGetTempFileName("cat", outfile) )
1035       return FALSE;
1036
1037   FILE *fp1 = (FILE *) NULL;
1038   FILE *fp2 = (FILE *) NULL;
1039   FILE *fp3 = (FILE *) NULL;
1040   // Open the inputs and outputs
1041   if ((fp1 = wxFopen (OS_FILENAME( file1 ), wxT("rb"))) == NULL ||
1042       (fp2 = wxFopen (OS_FILENAME( file2 ), wxT("rb"))) == NULL ||
1043       (fp3 = wxFopen (OS_FILENAME( outfile ), wxT("wb"))) == NULL)
1044     {
1045       if (fp1)
1046         fclose (fp1);
1047       if (fp2)
1048         fclose (fp2);
1049       if (fp3)
1050         fclose (fp3);
1051       return FALSE;
1052     }
1053
1054   int ch;
1055   while ((ch = getc (fp1)) != EOF)
1056     (void) putc (ch, fp3);
1057   fclose (fp1);
1058
1059   while ((ch = getc (fp2)) != EOF)
1060     (void) putc (ch, fp3);
1061   fclose (fp2);
1062
1063   fclose (fp3);
1064   bool result = wxRenameFile(outfile, file3);
1065   return result;
1066 }
1067
1068 // Copy files
1069 bool
1070 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1071 {
1072 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1073     // CopyFile() copies file attributes and modification time too, so use it
1074     // instead of our code if available
1075     //
1076     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1077     return ::CopyFile(file1, file2, !overwrite) != 0;
1078 #elif defined(__WXPM__)
1079     if (::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) == 0)
1080         return TRUE;
1081     else
1082         return FALSE;
1083 #else // !Win32
1084     wxStructStat fbuf;
1085
1086     // get permissions of file1
1087     if ( wxStat(OS_FILENAME(file1), &fbuf) != 0 )
1088     {
1089         // the file probably doesn't exist or we haven't the rights to read
1090         // from it anyhow
1091         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1092                       file1.c_str());
1093         return FALSE;
1094     }
1095
1096     // open file1 for reading
1097     wxFile fileIn(file1, wxFile::read);
1098     if ( !fileIn.IsOpened() )
1099         return FALSE;
1100
1101     // remove file2, if it exists. This is needed for creating
1102     // file2 with the correct permissions in the next step
1103     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1104     {
1105         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1106                       file2.c_str());
1107         return FALSE;
1108     }
1109
1110 #ifdef __UNIX__
1111     // reset the umask as we want to create the file with exactly the same
1112     // permissions as the original one
1113     mode_t oldUmask = umask( 0 );
1114 #endif // __UNIX__
1115
1116     // create file2 with the same permissions than file1 and open it for
1117     // writing
1118     wxFile fileOut;
1119     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1120         return FALSE;
1121
1122 #ifdef __UNIX__
1123     /// restore the old umask
1124     umask(oldUmask);
1125 #endif // __UNIX__
1126
1127     // copy contents of file1 to file2
1128     char buf[4096];
1129     size_t count;
1130     for ( ;; )
1131     {
1132         count = fileIn.Read(buf, WXSIZEOF(buf));
1133         if ( fileIn.Error() )
1134             return FALSE;
1135
1136         // end of file?
1137         if ( !count )
1138             break;
1139
1140         if ( fileOut.Write(buf, count) < count )
1141             return FALSE;
1142     }
1143
1144     // we can expect fileIn to be closed successfully, but we should ensure
1145     // that fileOut was closed as some write errors (disk full) might not be
1146     // detected before doing this
1147     if ( !fileIn.Close() || !fileOut.Close() )
1148         return FALSE;
1149
1150 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1151     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1152     // however
1153     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1154     {
1155         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1156                       file2.c_str());
1157         return FALSE;
1158     }
1159 #endif // OS/2 || Mac
1160
1161     return TRUE;
1162 #endif // __WXMSW__ && __WIN32__
1163 }
1164
1165 bool
1166 wxRenameFile (const wxString& file1, const wxString& file2)
1167 {
1168   // Normal system call
1169   if ( wxRename (file1, file2) == 0 )
1170     return TRUE;
1171
1172   // Try to copy
1173   if (wxCopyFile(file1, file2)) {
1174     wxRemoveFile(file1);
1175     return TRUE;
1176   }
1177   // Give up
1178   return FALSE;
1179 }
1180
1181 bool wxRemoveFile(const wxString& file)
1182 {
1183 #if defined(__VISUALC__) \
1184  || defined(__BORLANDC__) \
1185  || defined(__WATCOMC__) \
1186  || defined(__GNUWIN32__)
1187   int res = wxRemove(file);
1188 #else
1189   int res = unlink(OS_FILENAME(file));
1190 #endif
1191
1192   return res == 0;
1193 }
1194
1195 bool wxMkdir(const wxString& dir, int perm)
1196 {
1197 #if defined(__WXMAC__) && !defined(__UNIX__)
1198   return (mkdir( dir , 0 ) == 0);
1199 #else // !Mac
1200     const wxChar *dirname = dir.c_str();
1201
1202     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1203     // for the GNU compiler
1204 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__) || defined(__WXMICROWIN__)
1205     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1206 #elif defined(__WXPM__)
1207     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1208 #elif defined(__DOS__)
1209   #if defined(__WATCOMC__)
1210     (void)perm;
1211     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1212   #elif defined(__DJGPP__)
1213     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1214   #else
1215     #error "Unsupported DOS compiler!"
1216   #endif
1217 #else  // !MSW, !DOS and !OS/2 VAC++
1218     (void)perm;
1219     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1220 #endif // !MSW/MSW
1221     {
1222         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1223
1224         return FALSE;
1225     }
1226
1227     return TRUE;
1228 #endif // Mac/!Mac
1229 }
1230
1231 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1232 {
1233 #ifdef __VMS__
1234   return FALSE; //to be changed since rmdir exists in VMS7.x
1235 #elif defined(__WXPM__)
1236   return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1237 #else
1238
1239 #ifdef __SALFORDC__
1240   return FALSE; // What to do?
1241 #else
1242   return (wxRmDir(OS_FILENAME(dir)) == 0);
1243 #endif
1244
1245 #endif
1246 }
1247
1248 // does the path exists? (may have or not '/' or '\\' at the end)
1249 bool wxPathExists(const wxChar *pszPathName)
1250 {
1251     wxString strPath(pszPathName);
1252 #ifdef __WINDOWS__
1253     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1254     // so remove all trailing backslashes from the path - but don't do this for
1255     // the pathes "d:\" (which are different from "d:") nor for just "\"
1256     while ( wxEndsWithPathSeparator(strPath) )
1257     {
1258         size_t len = strPath.length();
1259         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1260             break;
1261
1262         strPath.Truncate(len - 1);
1263     }
1264 #endif // __WINDOWS__
1265
1266 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1267     // Stat can't cope with network paths
1268     DWORD ret = GetFileAttributes(strPath.c_str());
1269     DWORD isDir = (ret & FILE_ATTRIBUTE_DIRECTORY);
1270     return ((ret != 0xffffffff) && (isDir != 0));
1271 #else
1272
1273     wxStructStat st;
1274 #ifndef __VISAGECPP__
1275     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1276         ((st.st_mode & S_IFMT) == S_IFDIR);
1277 #else
1278     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1279     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1280         (st.st_mode == S_IFDIR);
1281 #endif
1282
1283 #endif
1284 }
1285
1286 // Get a temporary filename, opening and closing the file.
1287 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1288 {
1289     wxString filename = wxFileName::CreateTempFileName(prefix);
1290     if ( filename.empty() )
1291         return NULL;
1292
1293     if ( buf )
1294         wxStrcpy(buf, filename);
1295     else
1296         buf = copystring(filename);
1297
1298     return buf;
1299 }
1300
1301 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1302 {
1303     buf = wxFileName::CreateTempFileName(prefix);
1304
1305     return !buf.empty();
1306 }
1307
1308 // Get first file name matching given wild card.
1309
1310 static wxDir *gs_dir = NULL;
1311 static wxString gs_dirPath;
1312
1313 wxString wxFindFirstFile(const wxChar *spec, int flags)
1314 {
1315     gs_dirPath = wxPathOnly(spec);
1316     if ( gs_dirPath.IsEmpty() )
1317         gs_dirPath = wxT(".");
1318     if ( gs_dirPath.Last() != wxFILE_SEP_PATH )
1319         gs_dirPath << wxFILE_SEP_PATH;
1320
1321     if (gs_dir)
1322         delete gs_dir;
1323     gs_dir = new wxDir(gs_dirPath);
1324
1325     if ( !gs_dir->IsOpened() )
1326     {
1327         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1328         return wxEmptyString;
1329     }
1330
1331     int dirFlags = 0;
1332     switch (flags)
1333     {
1334         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1335         case wxFILE: dirFlags = wxDIR_FILES; break;
1336         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1337     }
1338
1339     wxString result;
1340     gs_dir->GetFirst(&result, wxFileNameFromPath(spec), dirFlags);
1341     if ( result.IsEmpty() )
1342     {
1343         wxDELETE(gs_dir);
1344         return result;
1345     }
1346
1347     return gs_dirPath + result;
1348 }
1349
1350 wxString wxFindNextFile()
1351 {
1352     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1353
1354     wxString result;
1355     gs_dir->GetNext(&result);
1356
1357     if ( result.IsEmpty() )
1358     {
1359         wxDELETE(gs_dir);
1360         return result;
1361     }
1362
1363     return gs_dirPath + result;
1364 }
1365
1366
1367 // Get current working directory.
1368 // If buf is NULL, allocates space using new, else
1369 // copies into buf.
1370 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1371 {
1372   if (!buf)
1373     buf = new wxChar[sz+1];
1374 #if wxUSE_UNICODE
1375   char *cbuf = new char[sz+1];
1376 #ifdef _MSC_VER
1377   if (_getcwd(cbuf, sz) == NULL) {
1378 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1379     enum
1380     {
1381         SFSaveDisk = 0x214, CurDirStore = 0x398
1382     };
1383     FSSpec cwdSpec ;
1384
1385     FSMakeFSSpec( - *(short *) SFSaveDisk , *(long *) CurDirStore , NULL , &cwdSpec ) ;
1386     wxString res = wxMacFSSpec2UnixFilename( &cwdSpec ) ;
1387     strcpy( buf , res ) ;
1388     if (0) {
1389 #else
1390   if (getcwd(cbuf, sz) == NULL) {
1391 #endif
1392     delete [] cbuf;
1393 #else // wxUnicode
1394 #ifdef _MSC_VER
1395   if (_getcwd(buf, sz) == NULL) {
1396 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1397     FSSpec cwdSpec ;
1398     FCBPBRec pb;
1399     OSErr error;
1400     Str255  fileName ;
1401     pb.ioNamePtr = (StringPtr) &fileName;
1402     pb.ioVRefNum = 0;
1403     pb.ioRefNum = LMGetCurApRefNum();
1404     pb.ioFCBIndx = 0;
1405     error = PBGetFCBInfoSync(&pb);
1406     if ( error == noErr )
1407     {
1408         cwdSpec.vRefNum = pb.ioFCBVRefNum;
1409         cwdSpec.parID = pb.ioFCBParID;
1410         cwdSpec.name[0] = 0 ;
1411         wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1412
1413         strcpy( buf , res ) ;
1414         buf[res.length()]=0 ;
1415     }
1416     else
1417         buf[0] = 0 ;
1418     /*
1419     this version will not always give back the application directory on mac
1420     enum
1421     {
1422         SFSaveDisk = 0x214, CurDirStore = 0x398
1423     };
1424     FSSpec cwdSpec ;
1425
1426     FSMakeFSSpec( - *(short *) SFSaveDisk , *(long *) CurDirStore , NULL , &cwdSpec ) ;
1427     wxString res = wxMacFSSpec2UnixFilename( &cwdSpec ) ;
1428     strcpy( buf , res ) ;
1429     */
1430     if (0) {
1431 #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1432     APIRET rc;
1433     rc = ::DosQueryCurrentDir( 0 // current drive
1434                               ,buf
1435                               ,(PULONG)&sz
1436                              );
1437     if (rc != 0) {
1438 #else
1439   if (getcwd(buf, sz) == NULL) {
1440 #endif
1441 #endif
1442     buf[0] = wxT('.');
1443     buf[1] = wxT('\0');
1444   }
1445 #if wxUSE_UNICODE
1446   else {
1447     wxConvFile.MB2WC(buf, cbuf, sz);
1448     delete [] cbuf;
1449   }
1450 #endif
1451
1452 #ifdef __DJGPP__
1453   // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths with
1454   //     / deliminers. We don't like that.
1455   for (wxChar *ch = buf; *ch; ch++)
1456     if (*ch == wxT('/')) *ch = wxT('\\');
1457 #endif
1458
1459   return buf;
1460 }
1461
1462 wxString wxGetCwd()
1463 {
1464     static const size_t maxPathLen = 1024;
1465
1466     wxString str;
1467     wxGetWorkingDirectory(str.GetWriteBuf(maxPathLen), maxPathLen);
1468     str.UngetWriteBuf();
1469
1470     return str;
1471 }
1472
1473 bool wxSetWorkingDirectory(const wxString& d)
1474 {
1475 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1476   return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1477 #elif defined(__WXPM__)
1478   return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1479 #elif defined(__WINDOWS__)
1480
1481 #ifdef __WIN32__
1482   return (bool)(SetCurrentDirectory(d) != 0);
1483 #else
1484   // Must change drive, too.
1485   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1486   if (isDriveSpec)
1487   {
1488     wxChar firstChar = d[0];
1489
1490     // To upper case
1491     if (firstChar > 90)
1492       firstChar = firstChar - 32;
1493
1494     // To a drive number
1495     unsigned int driveNo = firstChar - 64;
1496     if (driveNo > 0)
1497     {
1498        unsigned int noDrives;
1499        _dos_setdrive(driveNo, &noDrives);
1500     }
1501   }
1502   bool success = (chdir(WXSTRINGCAST d) == 0);
1503
1504   return success;
1505 #endif
1506
1507 #endif
1508 }
1509
1510 // Get the OS directory if appropriate (such as the Windows directory).
1511 // On non-Windows platform, probably just return the empty string.
1512 wxString wxGetOSDirectory()
1513 {
1514 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1515     wxChar buf[256];
1516     GetWindowsDirectory(buf, 256);
1517     return wxString(buf);
1518 #else
1519     return wxEmptyString;
1520 #endif
1521 }
1522
1523 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1524 {
1525     size_t len = wxStrlen(pszFileName);
1526
1527     return len && wxIsPathSeparator(pszFileName[len - 1]);
1528 }
1529
1530 // find a file in a list of directories, returns false if not found
1531 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1532 {
1533     // we assume that it's not empty
1534     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1535                  _T("empty file name in wxFindFileInPath"));
1536
1537     // skip path separator in the beginning of the file name if present
1538     if ( wxIsPathSeparator(*pszFile) )
1539         pszFile++;
1540
1541     // copy the path (strtok will modify it)
1542     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1543     wxStrcpy(szPath, pszPath);
1544
1545     wxString strFile;
1546     wxChar *pc, *save_ptr;
1547     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1548           pc != NULL;
1549           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1550     {
1551         // search for the file in this directory
1552         strFile = pc;
1553         if ( !wxEndsWithPathSeparator(pc) )
1554             strFile += wxFILE_SEP_PATH;
1555         strFile += pszFile;
1556
1557         if ( FileExists(strFile) ) {
1558             *pStr = strFile;
1559             break;
1560         }
1561     }
1562
1563     // suppress warning about unused variable save_ptr when wxStrtok() is a
1564     // macro which throws away its third argument
1565     save_ptr = pc;
1566
1567     delete [] szPath;
1568
1569     return pc != NULL;  // if true => we breaked from the loop
1570 }
1571
1572 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1573                              wxString *pstrPath,
1574                              wxString *pstrName,
1575                              wxString *pstrExt)
1576 {
1577     // it can be empty, but it shouldn't be NULL
1578     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1579
1580     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1581 }
1582
1583 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1584 {
1585     wxStructStat buf;
1586
1587     wxStat(filename.fn_str(), &buf);
1588     return buf.st_mtime;
1589 }
1590
1591
1592 //------------------------------------------------------------------------
1593 // wild character routines
1594 //------------------------------------------------------------------------
1595
1596 bool wxIsWild( const wxString& pattern )
1597 {
1598   wxString tmp = pattern;
1599   wxChar *pat = WXSTRINGCAST(tmp);
1600     while (*pat) {
1601         switch (*pat++) {
1602         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1603             return TRUE;
1604         case wxT('\\'):
1605             if (!*pat++)
1606                 return FALSE;
1607         }
1608     }
1609     return FALSE;
1610 };
1611
1612 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1613
1614 #if defined(HAVE_FNMATCH_H)
1615 {
1616 // this probably won't work well for multibyte chars in Unicode mode?
1617    if(dot_special)
1618       return fnmatch(pat.fn_str(), text.fn_str(), FNM_PERIOD) == 0;
1619    else
1620       return fnmatch(pat.fn_str(), text.fn_str(), 0) == 0;
1621 }
1622 #else
1623
1624 // #pragma error Broken implementation of wxMatchWild() -- needs fixing!
1625
1626    /*
1627     * WARNING: this code is broken!
1628     */
1629 {
1630   wxString tmp1 = pat;
1631   wxChar *pattern = WXSTRINGCAST(tmp1);
1632   wxString tmp2 = text;
1633   wxChar *str = WXSTRINGCAST(tmp2);
1634     wxChar c;
1635     wxChar *cp;
1636     bool done = FALSE, ret_code, ok;
1637     // Below is for vi fans
1638     const wxChar OB = wxT('{'), CB = wxT('}');
1639
1640     // dot_special means '.' only matches '.'
1641     if (dot_special && *str == wxT('.') && *pattern != *str)
1642         return FALSE;
1643
1644     while ((*pattern != wxT('\0')) && (!done)
1645     && (((*str==wxT('\0'))&&((*pattern==OB)||(*pattern==wxT('*'))))||(*str!=wxT('\0')))) {
1646         switch (*pattern) {
1647         case wxT('\\'):
1648             pattern++;
1649             if (*pattern != wxT('\0'))
1650                 pattern++;
1651             break;
1652         case wxT('*'):
1653             pattern++;
1654             ret_code = FALSE;
1655             while ((*str!=wxT('\0'))
1656             && ((ret_code=wxMatchWild(pattern, str++, FALSE)) == 0))
1657                 /*loop*/;
1658             if (ret_code) {
1659                 while (*str != wxT('\0'))
1660                     str++;
1661                 while (*pattern != wxT('\0'))
1662                     pattern++;
1663             }
1664             break;
1665         case wxT('['):
1666             pattern++;
1667           repeat:
1668             if ((*pattern == wxT('\0')) || (*pattern == wxT(']'))) {
1669                 done = TRUE;
1670                 break;
1671             }
1672             if (*pattern == wxT('\\')) {
1673                 pattern++;
1674                 if (*pattern == wxT('\0')) {
1675                     done = TRUE;
1676                     break;
1677                 }
1678             }
1679             if (*(pattern + 1) == wxT('-')) {
1680                 c = *pattern;
1681                 pattern += 2;
1682                 if (*pattern == wxT(']')) {
1683                     done = TRUE;
1684                     break;
1685                 }
1686                 if (*pattern == wxT('\\')) {
1687                     pattern++;
1688                     if (*pattern == wxT('\0')) {
1689                         done = TRUE;
1690                         break;
1691                     }
1692                 }
1693                 if ((*str < c) || (*str > *pattern)) {
1694                     pattern++;
1695                     goto repeat;
1696                 }
1697             } else if (*pattern != *str) {
1698                 pattern++;
1699                 goto repeat;
1700             }
1701             pattern++;
1702             while ((*pattern != wxT(']')) && (*pattern != wxT('\0'))) {
1703                 if ((*pattern == wxT('\\')) && (*(pattern + 1) != wxT('\0')))
1704                     pattern++;
1705                 pattern++;
1706             }
1707             if (*pattern != wxT('\0')) {
1708                 pattern++, str++;
1709             }
1710             break;
1711         case wxT('?'):
1712             pattern++;
1713             str++;
1714             break;
1715         case OB:
1716             pattern++;
1717             while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1718                 cp = str;
1719                 ok = TRUE;
1720                 while (ok && (*cp != wxT('\0')) && (*pattern != wxT('\0'))
1721                 &&  (*pattern != wxT(',')) && (*pattern != CB)) {
1722                     if (*pattern == wxT('\\'))
1723                         pattern++;
1724                     ok = (*pattern++ == *cp++);
1725                 }
1726                 if (*pattern == wxT('\0')) {
1727                     ok = FALSE;
1728                     done = TRUE;
1729                     break;
1730                 } else if (ok) {
1731                     str = cp;
1732                     while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1733                         if (*++pattern == wxT('\\')) {
1734                             if (*++pattern == CB)
1735                                 pattern++;
1736                         }
1737                     }
1738                 } else {
1739                     while (*pattern!=CB && *pattern!=wxT(',') && *pattern!=wxT('\0')) {
1740                         if (*++pattern == wxT('\\')) {
1741                             if (*++pattern == CB || *pattern == wxT(','))
1742                                 pattern++;
1743                         }
1744                     }
1745                 }
1746                 if (*pattern != wxT('\0'))
1747                     pattern++;
1748             }
1749             break;
1750         default:
1751             if (*str == *pattern) {
1752                 str++, pattern++;
1753             } else {
1754                 done = TRUE;
1755             }
1756         }
1757     }
1758     while (*pattern == wxT('*'))
1759         pattern++;
1760     return ((*str == wxT('\0')) && (*pattern == wxT('\0')));
1761 };
1762
1763 #endif
1764
1765 #ifdef __VISUALC__
1766     #pragma warning(default:4706)   // assignment within conditional expression
1767 #endif // VC++
1768
1769 //------------------------------------------------------------------------
1770 // Missing functions in Unicode for Win9x
1771 //------------------------------------------------------------------------
1772
1773 // NB: MSLU only covers Win32 API, it doesn't provide Unicode implementation of
1774 //     libc functions. Unfortunately, some of MSVCRT wchar_t functions
1775 //     (e.g. _wopen) don't work on Windows 9x, so we have to workaround it
1776 //     by calling the char version. We still want to use wchar_t version on
1777 //     NT/2000/XP, though, because they allow for Unicode file names.
1778 #if wxUSE_UNICODE_MSLU
1779
1780     #if defined( __VISUALC__ ) \
1781         || ( defined(__MINGW32__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
1782         || ( defined(__MWERKS__) && defined(__WXMSW__) )
1783     WXDLLEXPORT int wxOpen(const wxChar *name, int flags, int mode)
1784     {
1785         if ( wxGetOsVersion() == wxWINDOWS_NT )
1786             return _wopen(name, flags, mode);
1787         else
1788             return _open(wxConvFile.cWX2MB(name), flags, mode);
1789     }
1790     #endif
1791
1792 #endif // wxUSE_UNICODE_MSLU