src/common/filefn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        filefn.cpp
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "filefn.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26 #include "wx/defs.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 #include "wx/utils.h"
  33 #include "wx/intl.h"
  34 #include "wx/file.h"
  35 #include "wx/filename.h"
  36 #include "wx/dir.h"
  37
  38 // there are just too many of those...
  39 #ifdef __VISUALC__
  40     #pragma warning(disable:4706)   // assignment within conditional expression
  41 #endif // VC++
  42
  43 #include <ctype.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <string.h>
  47 #if !defined(__WATCOMC__)
  48     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  49         #include <errno.h>
  50     #endif
  51 #endif
  52
  53 #if defined(__WXMAC__)
  54   #include  "wx/mac/private.h"  // includes mac headers
  55 #endif
  56
  57 #include <time.h>
  58
  59 #ifndef __MWERKS__
  60     #include <sys/types.h>
  61     #include <sys/stat.h>
  62 #else
  63     #include <stat.h>
  64     #include <unistd.h>
  65     #include <unix.h>
  66 #endif
  67
  68 #ifdef __UNIX__
  69     #include <unistd.h>
  70     #include <dirent.h>
  71 #endif
  72
  73 #ifdef __WXPM__
  74     #include <process.h>
  75     #include "wx/os2/private.h"
  76 #endif
  77 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  78 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
  79     #include <direct.h>
  80     #include <dos.h>
  81     #include <io.h>
  82 #endif // __WINDOWS__
  83 #endif // native Win compiler
  84
  85 #if defined(__DOS__)
  86     #ifdef __WATCOMC__
  87         #include <direct.h>
  88         #include <dos.h>
  89         #include <io.h>
  90     #endif
  91     #ifdef __DJGPP__
  92         #include <unistd.h>
  93     #endif
  94 #endif
  95
  96 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  97                     // this (3.1 I believe) and how to test for it.
  98                     // If this works for Borland 4.0 as well, then no worries.
  99     #include <dir.h>
 100 #endif
 101
 102 #ifdef __SALFORDC__
 103     #include <dir.h>
 104     #include <unix.h>
 105 #endif
 106
 107 #include "wx/setup.h"
 108 #include "wx/log.h"
 109
 110 // No, Cygwin doesn't appear to have fnmatch.h after all.
 111 #if defined(HAVE_FNMATCH_H)
 112     #include "fnmatch.h"
 113 #endif
 114
 115 #ifdef __WINDOWS__
 116     #include <windows.h>
 117
 118     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
 119     //
 120     // note that it must be included after <windows.h>
 121     #ifdef __GNUWIN32__
 122         #ifdef __CYGWIN__
 123             #include <sys/cygwin.h>
 124         #endif
 125         #include <wchar.h>
 126         #ifndef __TWIN32__
 127             #include <sys/unistd.h>
 128         #endif
 129     #endif // __GNUWIN32__
 130 #endif // __WINDOWS__
 131
 132 // TODO: Borland probably has _wgetcwd as well?
 133 #ifdef _MSC_VER
 134     #define HAVE_WGETCWD
 135 #endif
 136
 137 // ----------------------------------------------------------------------------
 138 // constants
 139 // ----------------------------------------------------------------------------
 140
 141 #ifndef _MAXPATHLEN
 142     #define _MAXPATHLEN 1024
 143 #endif
 144
 145 extern wxChar *wxBuffer;
 146
 147 #ifdef __WXMAC__
 148 #    include "MoreFiles.h"
 149 #    include "MoreFilesExtras.h"
 150 #    include "FullPath.h"
 151 #    include "FSpCompat.h"
 152 #endif
 153
 154 IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 155
 156 // ----------------------------------------------------------------------------
 157 // private globals
 158 // ----------------------------------------------------------------------------
 159
 160 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 161
 162 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 163 //
 164 // VisualAge C++ V4.0 cannot have any external linkage const decs
 165 // in headers included by more than one primary source
 166 //
 167 const off_t wxInvalidOffset = (off_t)-1;
 168 #endif
 169
 170 // ----------------------------------------------------------------------------
 171 // macros
 172 // ----------------------------------------------------------------------------
 173
 174 // we need to translate Mac filenames before passing them to OS functions
 175 #define OS_FILENAME(s) (s.fn_str())
 176
 177 // ============================================================================
 178 // implementation
 179 // ============================================================================
 180
 181 void wxPathList::Add (const wxString& path)
 182 {
 183     wxStringList::Add (WXSTRINGCAST path);
 184 }
 185
 186 // Add paths e.g. from the PATH environment variable
 187 void wxPathList::AddEnvList (const wxString& envVariable)
 188 {
 189   static const wxChar PATH_TOKS[] =
 190 #ifdef __WINDOWS__
 191         wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 192 #else
 193         wxT(" :;");
 194 #endif
 195
 196   wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 197   if (val && *val)
 198     {
 199       wxChar *s = copystring (val);
 200       wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 201
 202       if (token)
 203       {
 204           Add (copystring (token));
 205           while (token)
 206           {
 207               if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
 208                   Add (wxString(token));
 209           }
 210       }
 211
 212       // suppress warning about unused variable save_ptr when wxStrtok() is a
 213       // macro which throws away its third argument
 214       save_ptr = token;
 215
 216       delete [] s;
 217     }
 218 }
 219
 220 // Given a full filename (with path), ensure that that file can
 221 // be accessed again USING FILENAME ONLY by adding the path
 222 // to the list if not already there.
 223 void wxPathList::EnsureFileAccessible (const wxString& path)
 224 {
 225     wxString path_only(wxPathOnly(path));
 226     if ( !path_only.IsEmpty() )
 227     {
 228         if ( !Member(path_only) )
 229             Add(path_only);
 230     }
 231 }
 232
 233 bool wxPathList::Member (const wxString& path)
 234 {
 235   for (wxNode * node = First (); node != NULL; node = node->Next ())
 236   {
 237       wxString path2((wxChar *) node->Data ());
 238       if (
 239 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 240       // Case INDEPENDENT
 241           path.CompareTo (path2, wxString::ignoreCase) == 0
 242 #else
 243       // Case sensitive File System
 244           path.CompareTo (path2) == 0
 245 #endif
 246         )
 247         return TRUE;
 248   }
 249   return FALSE;
 250 }
 251
 252 wxString wxPathList::FindValidPath (const wxString& file)
 253 {
 254   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 255     return wxString(wxFileFunctionsBuffer);
 256
 257   wxChar buf[_MAXPATHLEN];
 258   wxStrcpy(buf, wxFileFunctionsBuffer);
 259
 260   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 261   filename = IsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 262
 263   for (wxNode * node = First (); node; node = node->Next ())
 264     {
 265       wxChar *path = (wxChar *) node->Data ();
 266       wxStrcpy (wxFileFunctionsBuffer, path);
 267       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 268       if (ch != wxT('\\') && ch != wxT('/'))
 269         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 270       wxStrcat (wxFileFunctionsBuffer, filename);
 271 #ifdef __WINDOWS__
 272       Unix2DosFilename (wxFileFunctionsBuffer);
 273 #endif
 274       if (wxFileExists (wxFileFunctionsBuffer))
 275       {
 276         return wxString(wxFileFunctionsBuffer);        // Found!
 277       }
 278     }                                // for()
 279
 280   return wxString(wxT(""));                    // Not found
 281 }
 282
 283 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 284 {
 285     wxString f = FindValidPath(file);
 286     if ( wxIsAbsolutePath(f) )
 287         return f;
 288
 289     wxString buf;
 290     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 291
 292     if ( !wxEndsWithPathSeparator(buf) )
 293     {
 294         buf += wxFILE_SEP_PATH;
 295     }
 296     buf += f;
 297
 298     return buf;
 299 }
 300
 301 bool
 302 wxFileExists (const wxString& filename)
 303 {
 304 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 305     // GetFileAttributes can copy with network paths unlike stat()
 306     DWORD ret = ::GetFileAttributes(filename);
 307
 308     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 309 #else
 310     wxStructStat stbuf;
 311     if ( !filename.empty() && wxStat (OS_FILENAME(filename), &stbuf) == 0 )
 312         return TRUE;
 313
 314     return FALSE;
 315 #endif
 316 }
 317
 318 bool
 319 wxIsAbsolutePath (const wxString& filename)
 320 {
 321     if (filename != wxT(""))
 322     {
 323 #if defined(__WXMAC__) && !defined(__DARWIN__)
 324         // Classic or Carbon CodeWarrior like
 325         // Carbon with Apple DevTools is Unix like
 326
 327         // This seems wrong to me, but there is no fix. since
 328         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 329         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 330         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 331             return TRUE ;
 332 #else
 333         // Unix like or Windows
 334         if (filename[0] == wxT('/'))
 335             return TRUE;
 336 #endif
 337 #ifdef __VMS__
 338         if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
 339             return TRUE;
 340 #endif
 341 #ifdef __WINDOWS__
 342         // MSDOS like
 343         if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
 344             return TRUE;
 345 #endif
 346     }
 347     return FALSE ;
 348 }
 349
 350 /*
 351  * Strip off any extension (dot something) from end of file,
 352  * IF one exists. Inserts zero into buffer.
 353  *
 354  */
 355
 356 void wxStripExtension(wxChar *buffer)
 357 {
 358   int len = wxStrlen(buffer);
 359   int i = len-1;
 360   while (i > 0)
 361   {
 362     if (buffer[i] == wxT('.'))
 363     {
 364       buffer[i] = 0;
 365       break;
 366     }
 367     i --;
 368   }
 369 }
 370
 371 void wxStripExtension(wxString& buffer)
 372 {
 373   size_t len = buffer.Length();
 374   size_t i = len-1;
 375   while (i > 0)
 376   {
 377     if (buffer.GetChar(i) == wxT('.'))
 378     {
 379       buffer = buffer.Left(i);
 380       break;
 381     }
 382     i --;
 383   }
 384 }
 385
 386 // Destructive removal of /./ and /../ stuff
 387 wxChar *wxRealPath (wxChar *path)
 388 {
 389 #ifdef __WXMSW__
 390   static const wxChar SEP = wxT('\\');
 391   Unix2DosFilename(path);
 392 #else
 393   static const wxChar SEP = wxT('/');
 394 #endif
 395   if (path[0] && path[1]) {
 396     /* MATTHEW: special case "/./x" */
 397     wxChar *p;
 398     if (path[2] == SEP && path[1] == wxT('.'))
 399       p = &path[0];
 400     else
 401       p = &path[2];
 402     for (; *p; p++)
 403       {
 404         if (*p == SEP)
 405           {
 406             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 407               {
 408                 wxChar *q;
 409                 for (q = p - 1; q >= path && *q != SEP; q--);
 410                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 411                     && (q - 1 <= path || q[-1] != SEP))
 412                   {
 413                     wxStrcpy (q, p + 3);
 414                     if (path[0] == wxT('\0'))
 415                       {
 416                         path[0] = SEP;
 417                         path[1] = wxT('\0');
 418                       }
 419 #ifdef __WXMSW__
 420                     /* Check that path[2] is NULL! */
 421                     else if (path[1] == wxT(':') && !path[2])
 422                       {
 423                         path[2] = SEP;
 424                         path[3] = wxT('\0');
 425                       }
 426 #endif
 427                     p = q - 1;
 428                   }
 429               }
 430             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 431               wxStrcpy (p, p + 2);
 432           }
 433       }
 434   }
 435   return path;
 436 }
 437
 438 // Must be destroyed
 439 wxChar *wxCopyAbsolutePath(const wxString& filename)
 440 {
 441   if (filename == wxT(""))
 442     return (wxChar *) NULL;
 443
 444   if (! IsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 445     wxChar  buf[_MAXPATHLEN];
 446     buf[0] = wxT('\0');
 447     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 448     wxChar ch = buf[wxStrlen(buf) - 1];
 449 #ifdef __WXMSW__
 450     if (ch != wxT('\\') && ch != wxT('/'))
 451         wxStrcat(buf, wxT("\\"));
 452 #else
 453     if (ch != wxT('/'))
 454         wxStrcat(buf, wxT("/"));
 455 #endif
 456     wxStrcat(buf, wxFileFunctionsBuffer);
 457     return copystring( wxRealPath(buf) );
 458   }
 459   return copystring( wxFileFunctionsBuffer );
 460 }
 461
 462 /*-
 463  Handles:
 464    ~/ => home dir
 465    ~user/ => user's home dir
 466    If the environment variable a = "foo" and b = "bar" then:
 467    Unix:
 468         $a        =>        foo
 469         $a$b        =>        foobar
 470         $a.c        =>        foo.c
 471         xxx$a        =>        xxxfoo
 472         ${a}!        =>        foo!
 473         $(b)!        =>        bar!
 474         \$a        =>        \$a
 475    MSDOS:
 476         $a        ==>        $a
 477         $(a)        ==>        foo
 478         $(a)$b        ==>        foo$b
 479         $(a)$(b)==>        foobar
 480         test.$$        ==>        test.$$
 481  */
 482
 483 /* input name in name, pathname output to buf. */
 484
 485 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 486 {
 487     register wxChar *d, *s, *nm;
 488     wxChar          lnm[_MAXPATHLEN];
 489     int             q;
 490
 491     // Some compilers don't like this line.
 492 //    const wxChar    trimchars[] = wxT("\n \t");
 493
 494     wxChar      trimchars[4];
 495     trimchars[0] = wxT('\n');
 496     trimchars[1] = wxT(' ');
 497     trimchars[2] = wxT('\t');
 498     trimchars[3] = 0;
 499
 500 #ifdef __WXMSW__
 501      const wxChar     SEP = wxT('\\');
 502 #else
 503      const wxChar     SEP = wxT('/');
 504 #endif
 505     buf[0] = wxT('\0');
 506     if (name == NULL || *name == wxT('\0'))
 507         return buf;
 508     nm = copystring(name); // Make a scratch copy
 509     wxChar *nm_tmp = nm;
 510
 511     /* Skip leading whitespace and cr */
 512     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 513         nm++;
 514     /* And strip off trailing whitespace and cr */
 515     s = nm + (q = wxStrlen(nm)) - 1;
 516     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 517         *s = wxT('\0');
 518
 519     s = nm;
 520     d = lnm;
 521 #ifdef __WXMSW__
 522     q = FALSE;
 523 #else
 524     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 525 #endif
 526
 527     /* Expand inline environment variables */
 528 #ifdef __VISAGECPP__
 529     while (*d)
 530     {
 531       *d++ = *s;
 532       if(*s == wxT('\\'))
 533       {
 534         *(d - 1) = *++s;
 535         if (*d)
 536         {
 537           s++;
 538           continue;
 539         }
 540         else
 541            break;
 542       }
 543       else
 544 #else
 545     while ((*d++ = *s) != 0) {
 546 #  ifndef __WXMSW__
 547         if (*s == wxT('\\')) {
 548             if ((*(d - 1) = *++s)) {
 549                 s++;
 550                 continue;
 551             } else
 552                 break;
 553         } else
 554 #  endif
 555 #endif
 556 #ifdef __WXMSW__
 557         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 558 #else
 559         if (*s++ == wxT('$'))
 560 #endif
 561         {
 562             register wxChar  *start = d;
 563             register int     braces = (*s == wxT('{') || *s == wxT('('));
 564             register wxChar  *value;
 565             while ((*d++ = *s) != 0)
 566                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 567                     break;
 568                 else
 569                     s++;
 570             *--d = 0;
 571             value = wxGetenv(braces ? start + 1 : start);
 572             if (value) {
 573                 for ((d = start - 1); (*d++ = *value++) != 0;);
 574                 d--;
 575                 if (braces && *s)
 576                     s++;
 577             }
 578         }
 579     }
 580
 581     /* Expand ~ and ~user */
 582     nm = lnm;
 583     if (nm[0] == wxT('~') && !q)
 584     {
 585         /* prefix ~ */
 586         if (nm[1] == SEP || nm[1] == 0)
 587         {        /* ~/filename */
 588         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 589             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 590                 if (*++nm)
 591                     nm++;
 592             }
 593         } else
 594         {                /* ~user/filename */
 595             register wxChar  *nnm;
 596             register wxChar  *home;
 597             for (s = nm; *s && *s != SEP; s++);
 598             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 599             was_sep = (*s == SEP);
 600             nnm = *s ? s + 1 : s;
 601             *s = 0;
 602         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 603             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 604                if (was_sep) /* replace only if it was there: */
 605                    *s = SEP;
 606                 s = NULL;
 607             } else {
 608                 nm = nnm;
 609                 s = home;
 610             }
 611         }
 612     }
 613
 614     d = buf;
 615     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 616         /* Copy home dir */
 617         while (wxT('\0') != (*d++ = *s++))
 618           /* loop */;
 619         // Handle root home
 620         if (d - 1 > buf && *(d - 2) != SEP)
 621           *(d - 1) = SEP;
 622     }
 623     s = nm;
 624     while ((*d++ = *s++) != 0);
 625     delete[] nm_tmp; // clean up alloc
 626     /* Now clean up the buffer */
 627     return wxRealPath(buf);
 628 }
 629
 630 /* Contract Paths to be build upon an environment variable
 631    component:
 632
 633    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 634
 635    The call wxExpandPath can convert these back!
 636  */
 637 wxChar *
 638 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 639 {
 640   static wxChar dest[_MAXPATHLEN];
 641
 642   if (filename == wxT(""))
 643     return (wxChar *) NULL;
 644
 645   wxStrcpy (dest, WXSTRINGCAST filename);
 646 #ifdef __WXMSW__
 647   Unix2DosFilename(dest);
 648 #endif
 649
 650   // Handle environment
 651   const wxChar *val = (const wxChar *) NULL;
 652   wxChar *tcp = (wxChar *) NULL;
 653   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 654      (tcp = wxStrstr (dest, val)) != NULL)
 655     {
 656         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 657         *tcp++ = wxT('$');
 658         *tcp++ = wxT('{');
 659         wxStrcpy (tcp, WXSTRINGCAST envname);
 660         wxStrcat (tcp, wxT("}"));
 661         wxStrcat (tcp, wxFileFunctionsBuffer);
 662     }
 663
 664   // Handle User's home (ignore root homes!)
 665   size_t len = 0;
 666   if ((val = wxGetUserHome (user)) != NULL &&
 667       (len = wxStrlen(val)) > 2 &&
 668       wxStrncmp(dest, val, len) == 0)
 669     {
 670       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 671       if (user != wxT(""))
 672              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 673 #ifdef __WXMSW__
 674 //      strcat(wxFileFunctionsBuffer, "\\");
 675 #else
 676 //      strcat(wxFileFunctionsBuffer, "/");
 677 #endif
 678       wxStrcat(wxFileFunctionsBuffer, dest + len);
 679       wxStrcpy (dest, wxFileFunctionsBuffer);
 680     }
 681
 682   return dest;
 683 }
 684
 685 // Return just the filename, not the path
 686 // (basename)
 687 wxChar *wxFileNameFromPath (wxChar *path)
 688 {
 689     if (path)
 690     {
 691         register wxChar *tcp;
 692
 693         tcp = path + wxStrlen (path);
 694         while (--tcp >= path)
 695         {
 696 #if defined(__WXMAC__) && !defined(__DARWIN__)
 697             // Classic or Carbon CodeWarrior like
 698             // Carbon with Apple DevTools is Unix like
 699             if (*tcp == wxT(':'))
 700                 return tcp + 1;
 701 #else
 702             // Unix like or Windows
 703             if (*tcp == wxT('/') || *tcp == wxT('\\'))
 704                 return tcp + 1;
 705 #endif
 706 #ifdef __VMS__
 707             if (*tcp == wxT(':') || *tcp == wxT(']'))
 708                 return tcp + 1;
 709 #endif
 710         } /* while */
 711 #if defined(__WXMSW__) || defined(__WXPM__)
 712         // MSDOS like
 713         if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 714             return path + 2;
 715 #endif
 716     }
 717     return path;
 718 }
 719
 720 wxString wxFileNameFromPath (const wxString& path1)
 721 {
 722     if (path1 != wxT(""))
 723     {
 724         wxChar *path = WXSTRINGCAST path1 ;
 725         register wxChar *tcp;
 726
 727         tcp = path + wxStrlen (path);
 728         while (--tcp >= path)
 729         {
 730 #if defined(__WXMAC__) && !defined(__DARWIN__)
 731             // Classic or Carbon CodeWarrior like
 732             // Carbon with Apple DevTools is Unix like
 733             if (*tcp == wxT(':') )
 734                 return wxString(tcp + 1);
 735 #else
 736             // Unix like or Windows
 737             if (*tcp == wxT('/') || *tcp == wxT('\\'))
 738                 return wxString(tcp + 1);
 739 #endif
 740 #ifdef __VMS__
 741             if (*tcp == wxT(':') || *tcp == wxT(']'))
 742                 return wxString(tcp + 1);
 743 #endif
 744         } /* while */
 745 #if defined(__WXMSW__) || defined(__WXPM__)
 746         // MSDOS like
 747         if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 748             return wxString(path + 2);
 749 #endif
 750     }
 751     // Yes, this should return the path, not an empty string, otherwise
 752     // we get "thing.txt" -> "".
 753     return path1;
 754 }
 755
 756 // Return just the directory, or NULL if no directory
 757 wxChar *
 758 wxPathOnly (wxChar *path)
 759 {
 760     if (path && *path)
 761     {
 762         static wxChar buf[_MAXPATHLEN];
 763
 764         // Local copy
 765         wxStrcpy (buf, path);
 766
 767         int l = wxStrlen(path);
 768         int i = l - 1;
 769
 770         // Search backward for a backward or forward slash
 771         while (i > -1)
 772         {
 773 #if defined(__WXMAC__) && !defined(__DARWIN__)
 774             // Classic or Carbon CodeWarrior like
 775             // Carbon with Apple DevTools is Unix like
 776             if (path[i] == wxT(':') )
 777             {
 778                 buf[i] = 0;
 779                 return buf;
 780             }
 781 #else
 782             // Unix like or Windows
 783             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 784             {
 785                 buf[i] = 0;
 786                 return buf;
 787             }
 788 #endif
 789 #ifdef __VMS__
 790             if (path[i] == wxT(']'))
 791             {
 792                 buf[i+1] = 0;
 793                 return buf;
 794             }
 795 #endif
 796             i --;
 797         }
 798
 799 #if defined(__WXMSW__) || defined(__WXPM__)
 800         // Try Drive specifier
 801         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 802         {
 803             // A:junk --> A:. (since A:.\junk Not A:\junk)
 804             buf[2] = wxT('.');
 805             buf[3] = wxT('\0');
 806             return buf;
 807         }
 808 #endif
 809     }
 810     return (wxChar *) NULL;
 811 }
 812
 813 // Return just the directory, or NULL if no directory
 814 wxString wxPathOnly (const wxString& path)
 815 {
 816     if (path != wxT(""))
 817     {
 818         wxChar buf[_MAXPATHLEN];
 819
 820         // Local copy
 821         wxStrcpy (buf, WXSTRINGCAST path);
 822
 823         int l = path.Length();
 824         int i = l - 1;
 825
 826         // Search backward for a backward or forward slash
 827         while (i > -1)
 828         {
 829 #if defined(__WXMAC__) && !defined(__DARWIN__)
 830             // Classic or Carbon CodeWarrior like
 831             // Carbon with Apple DevTools is Unix like
 832             if (path[i] == wxT(':') )
 833             {
 834                 buf[i] = 0;
 835                 return wxString(buf);
 836             }
 837 #else
 838             // Unix like or Windows
 839             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 840             {
 841                 buf[i] = 0;
 842                 return wxString(buf);
 843             }
 844 #endif
 845 #ifdef __VMS__
 846             if (path[i] == wxT(']'))
 847             {
 848                 buf[i+1] = 0;
 849                 return wxString(buf);
 850             }
 851 #endif
 852             i --;
 853         }
 854
 855 #if defined(__WXMSW__) || defined(__WXPM__)
 856         // Try Drive specifier
 857         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 858         {
 859             // A:junk --> A:. (since A:.\junk Not A:\junk)
 860             buf[2] = wxT('.');
 861             buf[3] = wxT('\0');
 862             return wxString(buf);
 863         }
 864 #endif
 865     }
 866     return wxString(wxT(""));
 867 }
 868
 869 // Utility for converting delimiters in DOS filenames to UNIX style
 870 // and back again - or we get nasty problems with delimiters.
 871 // Also, convert to lower case, since case is significant in UNIX.
 872
 873 #if defined(__WXMAC__)
 874 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 875 {
 876 #ifdef __DARWIN__
 877     FSRef theRef;
 878     char  thePath[FILENAME_MAX];
 879
 880     // convert the FSSpec to an FSRef
 881     (void) FSpMakeFSRef( spec, &theRef );
 882     // get the POSIX path associated with the FSRef
 883     (void) FSRefMakePath( &theRef, (UInt8 *)thePath, sizeof(thePath) );
 884
 885     // create path string for return value
 886     wxString result( thePath ) ;
 887 #else
 888     Handle    myPath ;
 889     short     length ;
 890
 891     // get length of path and allocate handle
 892     FSpGetFullPath( spec , &length , &myPath ) ;
 893     ::SetHandleSize( myPath , length + 1 ) ;
 894     ::HLock( myPath ) ;
 895     (*myPath)[length] = 0 ;
 896     if ((length > 0) && ((*myPath)[length-1] == ':'))
 897         (*myPath)[length-1] = 0 ;
 898
 899     // create path string for return value
 900     wxString result( (char*) *myPath ) ;
 901
 902     // free allocated handle
 903     ::HUnlock( myPath ) ;
 904     ::DisposeHandle( myPath ) ;
 905 #endif
 906
 907     return result ;
 908 }
 909
 910 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 911 {
 912 #ifdef __DARWIN__
 913     FSRef theRef;
 914
 915     // get the FSRef associated with the POSIX path
 916     (void) FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
 917     // convert the FSRef to an FSSpec
 918     (void) FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
 919 #else
 920     FSpLocationFromFullPath( strlen(path) , path , spec ) ;
 921 #endif
 922 }
 923
 924 #ifndef __DARWIN__
 925 // Mac file names are POSIX (Unix style) under Darwin
 926 // therefore the conversion functions below are not needed
 927
 928 static char sMacFileNameConversion[ 1000 ] ;
 929
 930 wxString wxMac2UnixFilename (const char *str)
 931 {
 932     char *s = sMacFileNameConversion ;
 933     strcpy( s , str ) ;
 934     if (s)
 935     {
 936         memmove( s+1 , s ,strlen( s ) + 1) ;
 937         if ( *s == ':' )
 938             *s = '.' ;
 939         else
 940             *s = '/' ;
 941
 942         while (*s)
 943         {
 944             if (*s == ':')
 945                 *s = '/';
 946             else
 947                 *s = wxTolower(*s);        // Case INDEPENDENT
 948             s++;
 949         }
 950     }
 951     return wxString(sMacFileNameConversion) ;
 952 }
 953
 954 wxString wxUnix2MacFilename (const char *str)
 955 {
 956     char *s = sMacFileNameConversion ;
 957     strcpy( s , str ) ;
 958     if (s)
 959     {
 960         if ( *s == '.' )
 961         {
 962             // relative path , since it goes on with slash which is translated to a :
 963             memmove( s , s+1 ,strlen( s ) ) ;
 964         }
 965         else if ( *s == '/' )
 966         {
 967             // absolute path -> on mac just start with the drive name
 968             memmove( s , s+1 ,strlen( s ) ) ;
 969         }
 970         else
 971         {
 972             wxASSERT_MSG( 1 , "unkown path beginning" ) ;
 973         }
 974         while (*s)
 975         {
 976             if (*s == '/' || *s == '\\')
 977             {
 978                 // convert any back-directory situations
 979                 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
 980                 {
 981                     *s = ':';
 982                     memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
 983                 }
 984                 else
 985                     *s = ':';
 986             }
 987             s++ ;
 988         }
 989     }
 990     return wxString (sMacFileNameConversion) ;
 991 }
 992
 993 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
 994 {
 995     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
 996 }
 997
 998 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
 999 {
1000     wxString var = wxUnix2MacFilename( path ) ;
1001     wxMacFilename2FSSpec( var , spec ) ;
1002 }
1003 #endif // ! __DARWIN__
1004
1005 #endif // __WXMAC__
1006
1007 void
1008 wxDos2UnixFilename (char *s)
1009 {
1010   if (s)
1011     while (*s)
1012       {
1013         if (*s == '\\')
1014           *s = '/';
1015 #ifdef __WXMSW__
1016         else
1017           *s = wxTolower (*s);        // Case INDEPENDENT
1018 #endif
1019         s++;
1020       }
1021 }
1022
1023 void
1024 #if defined(__WXMSW__) || defined(__WXPM__)
1025 wxUnix2DosFilename (wxChar *s)
1026 #else
1027 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1028 #endif
1029 {
1030 // Yes, I really mean this to happen under DOS only! JACS
1031 #if defined(__WXMSW__) || defined(__WXPM__)
1032   if (s)
1033     while (*s)
1034       {
1035         if (*s == wxT('/'))
1036           *s = wxT('\\');
1037         s++;
1038       }
1039 #endif
1040 }
1041
1042 // Concatenate two files to form third
1043 bool
1044 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1045 {
1046   wxString outfile;
1047   if ( !wxGetTempFileName("cat", outfile) )
1048       return FALSE;
1049
1050   FILE *fp1 = (FILE *) NULL;
1051   FILE *fp2 = (FILE *) NULL;
1052   FILE *fp3 = (FILE *) NULL;
1053   // Open the inputs and outputs
1054   if ((fp1 = wxFopen (OS_FILENAME( file1 ), wxT("rb"))) == NULL ||
1055       (fp2 = wxFopen (OS_FILENAME( file2 ), wxT("rb"))) == NULL ||
1056       (fp3 = wxFopen (OS_FILENAME( outfile ), wxT("wb"))) == NULL)
1057     {
1058       if (fp1)
1059         fclose (fp1);
1060       if (fp2)
1061         fclose (fp2);
1062       if (fp3)
1063         fclose (fp3);
1064       return FALSE;
1065     }
1066
1067   int ch;
1068   while ((ch = getc (fp1)) != EOF)
1069     (void) putc (ch, fp3);
1070   fclose (fp1);
1071
1072   while ((ch = getc (fp2)) != EOF)
1073     (void) putc (ch, fp3);
1074   fclose (fp2);
1075
1076   fclose (fp3);
1077   bool result = wxRenameFile(outfile, file3);
1078   return result;
1079 }
1080
1081 // Copy files
1082 bool
1083 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1084 {
1085 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1086     // CopyFile() copies file attributes and modification time too, so use it
1087     // instead of our code if available
1088     //
1089     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1090     return ::CopyFile(file1, file2, !overwrite) != 0;
1091 #elif defined(__WXPM__)
1092     if (::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) == 0)
1093         return TRUE;
1094     else
1095         return FALSE;
1096 #else // !Win32
1097     wxStructStat fbuf;
1098
1099     // get permissions of file1
1100     if ( wxStat(OS_FILENAME(file1), &fbuf) != 0 )
1101     {
1102         // the file probably doesn't exist or we haven't the rights to read
1103         // from it anyhow
1104         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1105                       file1.c_str());
1106         return FALSE;
1107     }
1108
1109     // open file1 for reading
1110     wxFile fileIn(file1, wxFile::read);
1111     if ( !fileIn.IsOpened() )
1112         return FALSE;
1113
1114     // remove file2, if it exists. This is needed for creating
1115     // file2 with the correct permissions in the next step
1116     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1117     {
1118         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1119                       file2.c_str());
1120         return FALSE;
1121     }
1122
1123 #ifdef __UNIX__
1124     // reset the umask as we want to create the file with exactly the same
1125     // permissions as the original one
1126     mode_t oldUmask = umask( 0 );
1127 #endif // __UNIX__
1128
1129     // create file2 with the same permissions than file1 and open it for
1130     // writing
1131     wxFile fileOut;
1132     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1133         return FALSE;
1134
1135 #ifdef __UNIX__
1136     /// restore the old umask
1137     umask(oldUmask);
1138 #endif // __UNIX__
1139
1140     // copy contents of file1 to file2
1141     char buf[4096];
1142     size_t count;
1143     for ( ;; )
1144     {
1145         count = fileIn.Read(buf, WXSIZEOF(buf));
1146         if ( fileIn.Error() )
1147             return FALSE;
1148
1149         // end of file?
1150         if ( !count )
1151             break;
1152
1153         if ( fileOut.Write(buf, count) < count )
1154             return FALSE;
1155     }
1156
1157     // we can expect fileIn to be closed successfully, but we should ensure
1158     // that fileOut was closed as some write errors (disk full) might not be
1159     // detected before doing this
1160     if ( !fileIn.Close() || !fileOut.Close() )
1161         return FALSE;
1162
1163 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1164     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1165     // however
1166     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1167     {
1168         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1169                       file2.c_str());
1170         return FALSE;
1171     }
1172 #endif // OS/2 || Mac
1173
1174     return TRUE;
1175 #endif // __WXMSW__ && __WIN32__
1176 }
1177
1178 bool
1179 wxRenameFile (const wxString& file1, const wxString& file2)
1180 {
1181   // Normal system call
1182   if ( wxRename (file1, file2) == 0 )
1183     return TRUE;
1184
1185   // Try to copy
1186   if (wxCopyFile(file1, file2)) {
1187     wxRemoveFile(file1);
1188     return TRUE;
1189   }
1190   // Give up
1191   return FALSE;
1192 }
1193
1194 bool wxRemoveFile(const wxString& file)
1195 {
1196 #if defined(__VISUALC__) \
1197  || defined(__BORLANDC__) \
1198  || defined(__WATCOMC__) \
1199  || defined(__GNUWIN32__)
1200   int res = wxRemove(file);
1201 #else
1202   int res = unlink(OS_FILENAME(file));
1203 #endif
1204
1205   return res == 0;
1206 }
1207
1208 bool wxMkdir(const wxString& dir, int perm)
1209 {
1210 #if defined(__WXMAC__) && !defined(__UNIX__)
1211   return (mkdir( dir , 0 ) == 0);
1212 #else // !Mac
1213     const wxChar *dirname = dir.c_str();
1214
1215     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1216     // for the GNU compiler
1217 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__) || defined(__WXMICROWIN__)
1218     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1219 #elif defined(__WXPM__)
1220     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1221 #elif defined(__DOS__)
1222   #if defined(__WATCOMC__)
1223     (void)perm;
1224     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1225   #elif defined(__DJGPP__)
1226     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1227   #else
1228     #error "Unsupported DOS compiler!"
1229   #endif
1230 #else  // !MSW, !DOS and !OS/2 VAC++
1231     (void)perm;
1232     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1233 #endif // !MSW/MSW
1234     {
1235         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1236
1237         return FALSE;
1238     }
1239
1240     return TRUE;
1241 #endif // Mac/!Mac
1242 }
1243
1244 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1245 {
1246 #ifdef __VMS__
1247   return FALSE; //to be changed since rmdir exists in VMS7.x
1248 #elif defined(__WXPM__)
1249   return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1250 #else
1251
1252 #ifdef __SALFORDC__
1253   return FALSE; // What to do?
1254 #else
1255   return (wxRmDir(OS_FILENAME(dir)) == 0);
1256 #endif
1257
1258 #endif
1259 }
1260
1261 // does the path exists? (may have or not '/' or '\\' at the end)
1262 bool wxPathExists(const wxChar *pszPathName)
1263 {
1264     wxString strPath(pszPathName);
1265
1266 #ifdef __WINDOWS__
1267     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1268     // so remove all trailing backslashes from the path - but don't do this for
1269     // the pathes "d:\" (which are different from "d:") nor for just "\"
1270     while ( wxEndsWithPathSeparator(strPath) )
1271     {
1272         size_t len = strPath.length();
1273         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1274             break;
1275
1276         strPath.Truncate(len - 1);
1277     }
1278 #endif // __WINDOWS__
1279
1280 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1281     // stat() can't cope with network paths
1282     DWORD ret = ::GetFileAttributes(strPath);
1283
1284     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1285 #else // !__WIN32__
1286
1287     wxStructStat st;
1288 #ifndef __VISAGECPP__
1289     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1290         ((st.st_mode & S_IFMT) == S_IFDIR);
1291 #else
1292     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1293     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1294         (st.st_mode == S_IFDIR);
1295 #endif
1296
1297 #endif // __WIN32__/!__WIN32__
1298 }
1299
1300 // Get a temporary filename, opening and closing the file.
1301 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1302 {
1303     wxString filename = wxFileName::CreateTempFileName(prefix);
1304     if ( filename.empty() )
1305         return NULL;
1306
1307     if ( buf )
1308         wxStrcpy(buf, filename);
1309     else
1310         buf = copystring(filename);
1311
1312     return buf;
1313 }
1314
1315 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1316 {
1317     buf = wxFileName::CreateTempFileName(prefix);
1318
1319     return !buf.empty();
1320 }
1321
1322 // Get first file name matching given wild card.
1323
1324 static wxDir *gs_dir = NULL;
1325 static wxString gs_dirPath;
1326
1327 wxString wxFindFirstFile(const wxChar *spec, int flags)
1328 {
1329     gs_dirPath = wxPathOnly(spec);
1330     if ( gs_dirPath.IsEmpty() )
1331         gs_dirPath = wxT(".");
1332     if ( gs_dirPath.Last() != wxFILE_SEP_PATH )
1333         gs_dirPath << wxFILE_SEP_PATH;
1334
1335     if (gs_dir)
1336         delete gs_dir;
1337     gs_dir = new wxDir(gs_dirPath);
1338
1339     if ( !gs_dir->IsOpened() )
1340     {
1341         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1342         return wxEmptyString;
1343     }
1344
1345     int dirFlags = 0;
1346     switch (flags)
1347     {
1348         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1349         case wxFILE: dirFlags = wxDIR_FILES; break;
1350         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1351     }
1352
1353     wxString result;
1354     gs_dir->GetFirst(&result, wxFileNameFromPath(spec), dirFlags);
1355     if ( result.IsEmpty() )
1356     {
1357         wxDELETE(gs_dir);
1358         return result;
1359     }
1360
1361     return gs_dirPath + result;
1362 }
1363
1364 wxString wxFindNextFile()
1365 {
1366     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1367
1368     wxString result;
1369     gs_dir->GetNext(&result);
1370
1371     if ( result.IsEmpty() )
1372     {
1373         wxDELETE(gs_dir);
1374         return result;
1375     }
1376
1377     return gs_dirPath + result;
1378 }
1379
1380
1381 // Get current working directory.
1382 // If buf is NULL, allocates space using new, else
1383 // copies into buf.
1384 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1385 {
1386     if ( !buf )
1387     {
1388         buf = new wxChar[sz + 1];
1389     }
1390
1391     bool ok;
1392
1393     // for the compilers which have Unicode version of _getcwd(), call it
1394     // directly, for the others call the ANSI version and do the translation
1395 #if wxUSE_UNICODE
1396     #ifdef HAVE_WGETCWD
1397         ok = _wgetcwd(buf, sz) != NULL;
1398     #else // !HAVE_WGETCWD
1399         wxCharBuffer cbuf(sz);
1400     #endif
1401 #endif //
1402
1403 #if !wxUSE_UNICODE || !defined(HAVE_WGETCWD)
1404     #ifdef _MSC_VER
1405         ok = _getcwd(buf, sz) != NULL;
1406     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1407         FSSpec cwdSpec ;
1408         FCBPBRec pb;
1409         OSErr error;
1410         Str255  fileName ;
1411         pb.ioNamePtr = (StringPtr) &fileName;
1412         pb.ioVRefNum = 0;
1413         pb.ioRefNum = LMGetCurApRefNum();
1414         pb.ioFCBIndx = 0;
1415         error = PBGetFCBInfoSync(&pb);
1416         if ( error == noErr )
1417         {
1418             cwdSpec.vRefNum = pb.ioFCBVRefNum;
1419             cwdSpec.parID = pb.ioFCBParID;
1420             cwdSpec.name[0] = 0 ;
1421             wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1422
1423             strcpy( buf , res ) ;
1424             buf[res.length()]=0 ;
1425
1426             ok = TRUE;
1427         }
1428         else
1429         {
1430             ok = FALSE;
1431         }
1432     #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1433         APIRET rc;
1434         rc = ::DosQueryCurrentDir( 0 // current drive
1435                                   ,buf
1436                                   ,(PULONG)&sz
1437                                  );
1438         ok = rc != 0;
1439     #else // !Win32/VC++ !Mac !OS2
1440         ok = getcwd(buf, sz) != NULL;
1441     #endif // platform
1442 #endif // !wxUSE_UNICODE || !HAVE_WGETCWD
1443
1444     if ( !ok )
1445     {
1446         wxLogSysError(_("Failed to get the working directory"));
1447
1448         // VZ: the old code used to return "." on error which didn't make any
1449         //     sense at all to me - empty string is a better error indicator
1450         //     (NULL might be even better but I'm afraid this could lead to
1451         //     problems with the old code assuming the return is never NULL)
1452         buf[0] = _T('\0');
1453     }
1454     else // ok, but we might need to massage the path into the right format
1455     {
1456 #ifdef __DJGPP__
1457         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1458         //     with / deliminers. We don't like that.
1459         for (wxChar *ch = buf; *ch; ch++)
1460         {
1461             if (*ch == wxT('/'))
1462                 *ch = wxT('\\');
1463         }
1464 #endif // __DJGPP__
1465
1466 #ifdef __CYGWIN__
1467         // another example of DOS/Unix mix (Cygwin)
1468         wxString pathUnix = buf;
1469         cygwin_conv_to_full_win32_path(pathUnix, buf);
1470 #endif // __CYGWIN__
1471
1472         // finally convert the result to Unicode if needed
1473 #if wxUSE_UNICODE && !defined(HAVE_WGETCWD)
1474         wxConvFile.MB2WC(buf, cbuf, sz);
1475 #endif // wxUSE_UNICODE
1476     }
1477
1478     return buf;
1479 }
1480
1481 wxString wxGetCwd()
1482 {
1483     wxString str;
1484
1485     // we can't create wxStringBuffer object inline: Sun CC generates buggy
1486     // code in this case!
1487     {
1488         wxStringBuffer buf(str, _MAXPATHLEN);
1489         wxGetWorkingDirectory(buf, _MAXPATHLEN);
1490     }
1491
1492     return str;
1493 }
1494
1495 bool wxSetWorkingDirectory(const wxString& d)
1496 {
1497 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1498   return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1499 #elif defined(__WXPM__)
1500   return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1501 #elif defined(__WINDOWS__)
1502
1503 #ifdef __WIN32__
1504   return (bool)(SetCurrentDirectory(d) != 0);
1505 #else
1506   // Must change drive, too.
1507   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1508   if (isDriveSpec)
1509   {
1510     wxChar firstChar = d[0];
1511
1512     // To upper case
1513     if (firstChar > 90)
1514       firstChar = firstChar - 32;
1515
1516     // To a drive number
1517     unsigned int driveNo = firstChar - 64;
1518     if (driveNo > 0)
1519     {
1520        unsigned int noDrives;
1521        _dos_setdrive(driveNo, &noDrives);
1522     }
1523   }
1524   bool success = (chdir(WXSTRINGCAST d) == 0);
1525
1526   return success;
1527 #endif
1528
1529 #endif
1530 }
1531
1532 // Get the OS directory if appropriate (such as the Windows directory).
1533 // On non-Windows platform, probably just return the empty string.
1534 wxString wxGetOSDirectory()
1535 {
1536 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1537     wxChar buf[256];
1538     GetWindowsDirectory(buf, 256);
1539     return wxString(buf);
1540 #else
1541     return wxEmptyString;
1542 #endif
1543 }
1544
1545 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1546 {
1547     size_t len = wxStrlen(pszFileName);
1548
1549     return len && wxIsPathSeparator(pszFileName[len - 1]);
1550 }
1551
1552 // find a file in a list of directories, returns false if not found
1553 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1554 {
1555     // we assume that it's not empty
1556     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1557                  _T("empty file name in wxFindFileInPath"));
1558
1559     // skip path separator in the beginning of the file name if present
1560     if ( wxIsPathSeparator(*pszFile) )
1561         pszFile++;
1562
1563     // copy the path (strtok will modify it)
1564     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1565     wxStrcpy(szPath, pszPath);
1566
1567     wxString strFile;
1568     wxChar *pc, *save_ptr;
1569     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1570           pc != NULL;
1571           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1572     {
1573         // search for the file in this directory
1574         strFile = pc;
1575         if ( !wxEndsWithPathSeparator(pc) )
1576             strFile += wxFILE_SEP_PATH;
1577         strFile += pszFile;
1578
1579         if ( FileExists(strFile) ) {
1580             *pStr = strFile;
1581             break;
1582         }
1583     }
1584
1585     // suppress warning about unused variable save_ptr when wxStrtok() is a
1586     // macro which throws away its third argument
1587     save_ptr = pc;
1588
1589     delete [] szPath;
1590
1591     return pc != NULL;  // if true => we breaked from the loop
1592 }
1593
1594 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1595                              wxString *pstrPath,
1596                              wxString *pstrName,
1597                              wxString *pstrExt)
1598 {
1599     // it can be empty, but it shouldn't be NULL
1600     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1601
1602     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1603 }
1604
1605 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1606 {
1607     wxStructStat buf;
1608
1609     wxStat(filename.fn_str(), &buf);
1610     return buf.st_mtime;
1611 }
1612
1613
1614 //------------------------------------------------------------------------
1615 // wild character routines
1616 //------------------------------------------------------------------------
1617
1618 bool wxIsWild( const wxString& pattern )
1619 {
1620   wxString tmp = pattern;
1621   wxChar *pat = WXSTRINGCAST(tmp);
1622     while (*pat) {
1623         switch (*pat++) {
1624         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1625             return TRUE;
1626         case wxT('\\'):
1627             if (!*pat++)
1628                 return FALSE;
1629         }
1630     }
1631     return FALSE;
1632 };
1633
1634 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1635
1636 #if defined(HAVE_FNMATCH_H)
1637 {
1638 // this probably won't work well for multibyte chars in Unicode mode?
1639    if(dot_special)
1640       return fnmatch(pat.fn_str(), text.fn_str(), FNM_PERIOD) == 0;
1641    else
1642       return fnmatch(pat.fn_str(), text.fn_str(), 0) == 0;
1643 }
1644 #else
1645
1646 // #pragma error Broken implementation of wxMatchWild() -- needs fixing!
1647
1648    /*
1649     * WARNING: this code is broken!
1650     */
1651 {
1652   wxString tmp1 = pat;
1653   wxChar *pattern = WXSTRINGCAST(tmp1);
1654   wxString tmp2 = text;
1655   wxChar *str = WXSTRINGCAST(tmp2);
1656     wxChar c;
1657     wxChar *cp;
1658     bool done = FALSE, ret_code, ok;
1659     // Below is for vi fans
1660     const wxChar OB = wxT('{'), CB = wxT('}');
1661
1662     // dot_special means '.' only matches '.'
1663     if (dot_special && *str == wxT('.') && *pattern != *str)
1664         return FALSE;
1665
1666     while ((*pattern != wxT('\0')) && (!done)
1667     && (((*str==wxT('\0'))&&((*pattern==OB)||(*pattern==wxT('*'))))||(*str!=wxT('\0')))) {
1668         switch (*pattern) {
1669         case wxT('\\'):
1670             pattern++;
1671             if (*pattern != wxT('\0'))
1672                 pattern++;
1673             break;
1674         case wxT('*'):
1675             pattern++;
1676             ret_code = FALSE;
1677             while ((*str!=wxT('\0'))
1678             && ((ret_code=wxMatchWild(pattern, str++, FALSE)) == 0))
1679                 /*loop*/;
1680             if (ret_code) {
1681                 while (*str != wxT('\0'))
1682                     str++;
1683                 while (*pattern != wxT('\0'))
1684                     pattern++;
1685             }
1686             break;
1687         case wxT('['):
1688             pattern++;
1689           repeat:
1690             if ((*pattern == wxT('\0')) || (*pattern == wxT(']'))) {
1691                 done = TRUE;
1692                 break;
1693             }
1694             if (*pattern == wxT('\\')) {
1695                 pattern++;
1696                 if (*pattern == wxT('\0')) {
1697                     done = TRUE;
1698                     break;
1699                 }
1700             }
1701             if (*(pattern + 1) == wxT('-')) {
1702                 c = *pattern;
1703                 pattern += 2;
1704                 if (*pattern == wxT(']')) {
1705                     done = TRUE;
1706                     break;
1707                 }
1708                 if (*pattern == wxT('\\')) {
1709                     pattern++;
1710                     if (*pattern == wxT('\0')) {
1711                         done = TRUE;
1712                         break;
1713                     }
1714                 }
1715                 if ((*str < c) || (*str > *pattern)) {
1716                     pattern++;
1717                     goto repeat;
1718                 }
1719             } else if (*pattern != *str) {
1720                 pattern++;
1721                 goto repeat;
1722             }
1723             pattern++;
1724             while ((*pattern != wxT(']')) && (*pattern != wxT('\0'))) {
1725                 if ((*pattern == wxT('\\')) && (*(pattern + 1) != wxT('\0')))
1726                     pattern++;
1727                 pattern++;
1728             }
1729             if (*pattern != wxT('\0')) {
1730                 pattern++, str++;
1731             }
1732             break;
1733         case wxT('?'):
1734             pattern++;
1735             str++;
1736             break;
1737         case OB:
1738             pattern++;
1739             while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1740                 cp = str;
1741                 ok = TRUE;
1742                 while (ok && (*cp != wxT('\0')) && (*pattern != wxT('\0'))
1743                 &&  (*pattern != wxT(',')) && (*pattern != CB)) {
1744                     if (*pattern == wxT('\\'))
1745                         pattern++;
1746                     ok = (*pattern++ == *cp++);
1747                 }
1748                 if (*pattern == wxT('\0')) {
1749                     ok = FALSE;
1750                     done = TRUE;
1751                     break;
1752                 } else if (ok) {
1753                     str = cp;
1754                     while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1755                         if (*++pattern == wxT('\\')) {
1756                             if (*++pattern == CB)
1757                                 pattern++;
1758                         }
1759                     }
1760                 } else {
1761                     while (*pattern!=CB && *pattern!=wxT(',') && *pattern!=wxT('\0')) {
1762                         if (*++pattern == wxT('\\')) {
1763                             if (*++pattern == CB || *pattern == wxT(','))
1764                                 pattern++;
1765                         }
1766                     }
1767                 }
1768                 if (*pattern != wxT('\0'))
1769                     pattern++;
1770             }
1771             break;
1772         default:
1773             if (*str == *pattern) {
1774                 str++, pattern++;
1775             } else {
1776                 done = TRUE;
1777             }
1778         }
1779     }
1780     while (*pattern == wxT('*'))
1781         pattern++;
1782     return ((*str == wxT('\0')) && (*pattern == wxT('\0')));
1783 };
1784
1785 #endif
1786
1787 #ifdef __VISUALC__
1788     #pragma warning(default:4706)   // assignment within conditional expression
1789 #endif // VC++
1790
1791 //------------------------------------------------------------------------
1792 // Missing functions in Unicode for Win9x
1793 //------------------------------------------------------------------------
1794
1795 // NB: MSLU only covers Win32 API, it doesn't provide Unicode implementation of
1796 //     libc functions. Unfortunately, some of MSVCRT wchar_t functions
1797 //     (e.g. _wopen) don't work on Windows 9x, so we have to workaround it
1798 //     by calling the char version. We still want to use wchar_t version on
1799 //     NT/2000/XP, though, because they allow for Unicode file names.
1800 #if wxUSE_UNICODE_MSLU
1801
1802     #if defined( __VISUALC__ ) \
1803         || ( defined(__MINGW32__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
1804         || ( defined(__MWERKS__) && defined(__WXMSW__) )
1805     WXDLLEXPORT int wxOpen(const wxChar *name, int flags, int mode)
1806     {
1807         if ( wxGetOsVersion() == wxWINDOWS_NT )
1808             return _wopen(name, flags, mode);
1809         else
1810             return _open(wxConvFile.cWX2MB(name), flags, mode);
1811     }
1812     #endif
1813
1814 #endif // wxUSE_UNICODE_MSLU