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 licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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" // This does include filefn.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 "wx/log.h"
  58
  59 // No, Cygwin doesn't appear to have fnmatch.h after all.
  60 #if defined(HAVE_FNMATCH_H)
  61     #include "fnmatch.h"
  62 #endif
  63
  64 #ifdef __WINDOWS__
  65     #include "wx/msw/wrapwin.h"
  66     #include "wx/msw/mslu.h"
  67
  68     // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
  69     //
  70     // note that it must be included after <windows.h>
  71     #ifdef __GNUWIN32__
  72         #ifdef __CYGWIN__
  73             #include <sys/cygwin.h>
  74         #endif
  75     #endif // __GNUWIN32__
  76 #endif // __WINDOWS__
  77
  78 // TODO: Borland probably has _wgetcwd as well?
  79 #ifdef _MSC_VER
  80     #define HAVE_WGETCWD
  81 #endif
  82
  83 // ----------------------------------------------------------------------------
  84 // constants
  85 // ----------------------------------------------------------------------------
  86
  87 #ifndef _MAXPATHLEN
  88     #define _MAXPATHLEN 1024
  89 #endif
  90
  91 #ifdef __WXMAC__
  92 #    include "MoreFilesX.h"
  93 #endif
  94
  95 // ----------------------------------------------------------------------------
  96 // private globals
  97 // ----------------------------------------------------------------------------
  98
  99 // MT-FIXME: get rid of this horror and all code using it
 100 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 101
 102 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 103 //
 104 // VisualAge C++ V4.0 cannot have any external linkage const decs
 105 // in headers included by more than one primary source
 106 //
 107 const off_t wxInvalidOffset = (off_t)-1;
 108 #endif
 109
 110 // ----------------------------------------------------------------------------
 111 // macros
 112 // ----------------------------------------------------------------------------
 113
 114 // we need to translate Mac filenames before passing them to OS functions
 115 #define OS_FILENAME(s) (s.fn_str())
 116
 117 // ============================================================================
 118 // implementation
 119 // ============================================================================
 120
 121 #ifdef wxNEED_WX_UNISTD_H
 122
 123 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
 124 {
 125     return stat( wxConvFile.cWX2MB( file_name ), buf );
 126 }
 127
 128 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
 129 {
 130     return access( wxConvFile.cWX2MB( pathname ), mode );
 131 }
 132
 133 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
 134 {
 135     return open( wxConvFile.cWX2MB( pathname ), flags, mode );
 136 }
 137
 138 #endif
 139    // wxNEED_WX_UNISTD_H
 140
 141 // ----------------------------------------------------------------------------
 142 // wxPathList
 143 // ----------------------------------------------------------------------------
 144
 145 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 146
 147 static inline wxChar* MYcopystring(const wxString& s)
 148 {
 149     wxChar* copy = new wxChar[s.length() + 1];
 150     return wxStrcpy(copy, s.c_str());
 151 }
 152
 153 static inline wxChar* MYcopystring(const wxChar* s)
 154 {
 155     wxChar* copy = new wxChar[wxStrlen(s) + 1];
 156     return wxStrcpy(copy, s);
 157 }
 158
 159 void wxPathList::Add (const wxString& path)
 160 {
 161     wxStringList::Add (WXSTRINGCAST path);
 162 }
 163
 164 // Add paths e.g. from the PATH environment variable
 165 void wxPathList::AddEnvList (const wxString& envVariable)
 166 {
 167     // No environment variables on WinCE
 168 #ifndef __WXWINCE__
 169     static const wxChar PATH_TOKS[] =
 170 #if defined(__WINDOWS__) || defined(__OS2__)
 171         /*
 172         The space has been removed from the tokenizers, otherwise a
 173         path such as "C:\Program Files" would be split into 2 paths:
 174         "C:\Program" and "Files"
 175         */
 176 //        wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 177         wxT(";"); // Don't seperate with colon in DOS (used for drive)
 178 #else
 179         wxT(" :;");
 180 #endif
 181
 182     wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 183     if (val && *val)
 184     {
 185         wxChar *s = MYcopystring (val);
 186         wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 187
 188         if (token)
 189         {
 190             Add(token);
 191             while (token)
 192             {
 193                 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
 194                     != NULL )
 195                 {
 196                     Add(token);
 197                 }
 198             }
 199         }
 200
 201         // suppress warning about unused variable save_ptr when wxStrtok() is a
 202         // macro which throws away its third argument
 203         save_ptr = token;
 204
 205         delete [] s;
 206     }
 207 #endif
 208 }
 209
 210 // Given a full filename (with path), ensure that that file can
 211 // be accessed again USING FILENAME ONLY by adding the path
 212 // to the list if not already there.
 213 void wxPathList::EnsureFileAccessible (const wxString& path)
 214 {
 215     wxString path_only(wxPathOnly(path));
 216     if ( !path_only.IsEmpty() )
 217     {
 218         if ( !Member(path_only) )
 219             Add(path_only);
 220     }
 221 }
 222
 223 bool wxPathList::Member (const wxString& path)
 224 {
 225   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 226   {
 227       wxString path2( node->GetData() );
 228       if (
 229 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined (__WXMAC__)
 230       // Case INDEPENDENT
 231           path.CompareTo (path2, wxString::ignoreCase) == 0
 232 #else
 233       // Case sensitive File System
 234           path.CompareTo (path2) == 0
 235 #endif
 236         )
 237         return true;
 238   }
 239   return false;
 240 }
 241
 242 wxString wxPathList::FindValidPath (const wxString& file)
 243 {
 244   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 245     return wxString(wxFileFunctionsBuffer);
 246
 247   wxChar buf[_MAXPATHLEN];
 248   wxStrcpy(buf, wxFileFunctionsBuffer);
 249
 250   wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 251
 252   for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
 253     {
 254       const wxChar *path = node->GetData();
 255       wxStrcpy (wxFileFunctionsBuffer, path);
 256       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 257       if (ch != wxT('\\') && ch != wxT('/'))
 258         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 259       wxStrcat (wxFileFunctionsBuffer, filename);
 260 #ifdef __WINDOWS__
 261       wxUnix2DosFilename (wxFileFunctionsBuffer);
 262 #endif
 263       if (wxFileExists (wxFileFunctionsBuffer))
 264       {
 265         return wxString(wxFileFunctionsBuffer);        // Found!
 266       }
 267     }                                // for()
 268
 269   return wxEmptyString;                    // Not found
 270 }
 271
 272 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 273 {
 274     wxString f = FindValidPath(file);
 275     if ( f.empty() || wxIsAbsolutePath(f) )
 276         return f;
 277
 278     wxString buf;
 279     wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
 280
 281     if ( !wxEndsWithPathSeparator(buf) )
 282     {
 283         buf += wxFILE_SEP_PATH;
 284     }
 285     buf += f;
 286
 287     return buf;
 288 }
 289
 290 bool
 291 wxFileExists (const wxString& filename)
 292 {
 293     // we must use GetFileAttributes() instead of the ANSI C functions because
 294     // it can cope with network (UNC) paths unlike them
 295 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 296     DWORD ret = ::GetFileAttributes(filename);
 297
 298     return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
 299 #else // !__WIN32__
 300     wxStructStat st;
 301     return wxStat(filename, &st) == 0 && (st.st_mode & S_IFREG);
 302 #endif // __WIN32__/!__WIN32__
 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 #if defined(__WINDOWS__) || defined(__OS2__)
 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   wxUnix2DosFilename(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                 {
 398                     // Empty
 399                 }
 400
 401                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 402                     && (q - 1 <= path || q[-1] != SEP))
 403                   {
 404                     wxStrcpy (q, p + 3);
 405                     if (path[0] == wxT('\0'))
 406                       {
 407                         path[0] = SEP;
 408                         path[1] = wxT('\0');
 409                       }
 410 #if defined(__WXMSW__) || defined(__OS2__)
 411                     /* Check that path[2] is NULL! */
 412                     else if (path[1] == wxT(':') && !path[2])
 413                       {
 414                         path[2] = SEP;
 415                         path[3] = wxT('\0');
 416                       }
 417 #endif
 418                     p = q - 1;
 419                   }
 420               }
 421             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 422               wxStrcpy (p, p + 2);
 423           }
 424       }
 425   }
 426   return path;
 427 }
 428
 429 // Must be destroyed
 430 wxChar *wxCopyAbsolutePath(const wxString& filename)
 431 {
 432   if (filename == wxT(""))
 433     return (wxChar *) NULL;
 434
 435   if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 436     wxChar  buf[_MAXPATHLEN];
 437     buf[0] = wxT('\0');
 438     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 439     wxChar ch = buf[wxStrlen(buf) - 1];
 440 #ifdef __WXMSW__
 441     if (ch != wxT('\\') && ch != wxT('/'))
 442         wxStrcat(buf, wxT("\\"));
 443 #else
 444     if (ch != wxT('/'))
 445         wxStrcat(buf, wxT("/"));
 446 #endif
 447     wxStrcat(buf, wxFileFunctionsBuffer);
 448     return MYcopystring( wxRealPath(buf) );
 449   }
 450   return MYcopystring( wxFileFunctionsBuffer );
 451 }
 452
 453 /*-
 454  Handles:
 455    ~/ => home dir
 456    ~user/ => user's home dir
 457    If the environment variable a = "foo" and b = "bar" then:
 458    Unix:
 459         $a        =>        foo
 460         $a$b        =>        foobar
 461         $a.c        =>        foo.c
 462         xxx$a        =>        xxxfoo
 463         ${a}!        =>        foo!
 464         $(b)!        =>        bar!
 465         \$a        =>        \$a
 466    MSDOS:
 467         $a        ==>        $a
 468         $(a)        ==>        foo
 469         $(a)$b        ==>        foo$b
 470         $(a)$(b)==>        foobar
 471         test.$$        ==>        test.$$
 472  */
 473
 474 /* input name in name, pathname output to buf. */
 475
 476 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 477 {
 478     register wxChar *d, *s, *nm;
 479     wxChar          lnm[_MAXPATHLEN];
 480     int             q;
 481
 482     // Some compilers don't like this line.
 483 //    const wxChar    trimchars[] = wxT("\n \t");
 484
 485     wxChar      trimchars[4];
 486     trimchars[0] = wxT('\n');
 487     trimchars[1] = wxT(' ');
 488     trimchars[2] = wxT('\t');
 489     trimchars[3] = 0;
 490
 491 #ifdef __WXMSW__
 492     const wxChar     SEP = wxT('\\');
 493 #else
 494     const wxChar     SEP = wxT('/');
 495 #endif
 496     buf[0] = wxT('\0');
 497     if (name == NULL || *name == wxT('\0'))
 498         return buf;
 499     nm = MYcopystring(name); // Make a scratch copy
 500     wxChar *nm_tmp = nm;
 501
 502     /* Skip leading whitespace and cr */
 503     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 504         nm++;
 505     /* And strip off trailing whitespace and cr */
 506     s = nm + (q = wxStrlen(nm)) - 1;
 507     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 508         *s = wxT('\0');
 509
 510     s = nm;
 511     d = lnm;
 512 #ifdef __WXMSW__
 513     q = FALSE;
 514 #else
 515     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 516 #endif
 517
 518     /* Expand inline environment variables */
 519 #ifdef __VISAGECPP__
 520     while (*d)
 521     {
 522       *d++ = *s;
 523       if(*s == wxT('\\'))
 524       {
 525         *(d - 1) = *++s;
 526         if (*d)
 527         {
 528           s++;
 529           continue;
 530         }
 531         else
 532            break;
 533       }
 534       else
 535 #else
 536     while ((*d++ = *s) != 0) {
 537 #  ifndef __WXMSW__
 538         if (*s == wxT('\\')) {
 539             if ((*(d - 1) = *++s)) {
 540                 s++;
 541                 continue;
 542             } else
 543                 break;
 544         } else
 545 #  endif
 546 #endif
 547             // No env variables on WinCE
 548 #ifndef __WXWINCE__
 549 #ifdef __WXMSW__
 550         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 551 #else
 552         if (*s++ == wxT('$'))
 553 #endif
 554         {
 555             register wxChar  *start = d;
 556             register int     braces = (*s == wxT('{') || *s == wxT('('));
 557             register wxChar  *value;
 558             while ((*d++ = *s) != 0)
 559                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 560                     break;
 561                 else
 562                     s++;
 563             *--d = 0;
 564             value = wxGetenv(braces ? start + 1 : start);
 565             if (value) {
 566                 for ((d = start - 1); (*d++ = *value++) != 0;)
 567                 {
 568                     // Empty
 569                 }
 570
 571                 d--;
 572                 if (braces && *s)
 573                     s++;
 574             }
 575         }
 576 #endif
 577         // __WXWINCE__
 578     }
 579
 580     /* Expand ~ and ~user */
 581     nm = lnm;
 582     if (nm[0] == wxT('~') && !q)
 583     {
 584         /* prefix ~ */
 585         if (nm[1] == SEP || nm[1] == 0)
 586         {        /* ~/filename */
 587         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 588             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 589                 if (*++nm)
 590                     nm++;
 591             }
 592         } else
 593         {                /* ~user/filename */
 594             register wxChar  *nnm;
 595             register wxChar  *home;
 596             for (s = nm; *s && *s != SEP; s++)
 597             {
 598                 // Empty
 599             }
 600             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 601             was_sep = (*s == SEP);
 602             nnm = *s ? s + 1 : s;
 603             *s = 0;
 604         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 605             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 606                if (was_sep) /* replace only if it was there: */
 607                    *s = SEP;
 608                 s = NULL;
 609             } else {
 610                 nm = nnm;
 611                 s = home;
 612             }
 613         }
 614     }
 615
 616     d = buf;
 617     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 618         /* Copy home dir */
 619         while (wxT('\0') != (*d++ = *s++))
 620           /* loop */;
 621         // Handle root home
 622         if (d - 1 > buf && *(d - 2) != SEP)
 623           *(d - 1) = SEP;
 624     }
 625     s = nm;
 626     while ((*d++ = *s++) != 0)
 627     {
 628         // Empty
 629     }
 630     delete[] nm_tmp; // clean up alloc
 631     /* Now clean up the buffer */
 632     return wxRealPath(buf);
 633 }
 634
 635 /* Contract Paths to be build upon an environment variable
 636    component:
 637
 638    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 639
 640    The call wxExpandPath can convert these back!
 641  */
 642 wxChar *
 643 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 644 {
 645   static wxChar dest[_MAXPATHLEN];
 646
 647   if (filename == wxT(""))
 648     return (wxChar *) NULL;
 649
 650   wxStrcpy (dest, WXSTRINGCAST filename);
 651 #ifdef __WXMSW__
 652   wxUnix2DosFilename(dest);
 653 #endif
 654
 655   // Handle environment
 656   const wxChar *val;
 657 #ifndef __WXWINCE__
 658   wxChar *tcp;
 659   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 660      (tcp = wxStrstr (dest, val)) != NULL)
 661     {
 662         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 663         *tcp++ = wxT('$');
 664         *tcp++ = wxT('{');
 665         wxStrcpy (tcp, WXSTRINGCAST envname);
 666         wxStrcat (tcp, wxT("}"));
 667         wxStrcat (tcp, wxFileFunctionsBuffer);
 668     }
 669 #endif
 670
 671   // Handle User's home (ignore root homes!)
 672   val = wxGetUserHome (user);
 673   if (!val)
 674     return dest;
 675
 676   const size_t len = wxStrlen(val);
 677   if (len <= 2)
 678     return dest;
 679
 680   if (wxStrncmp(dest, val, len) == 0)
 681   {
 682     wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 683     if (user != wxT(""))
 684            wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 685     wxStrcat(wxFileFunctionsBuffer, dest + len);
 686     wxStrcpy (dest, wxFileFunctionsBuffer);
 687   }
 688
 689   return dest;
 690 }
 691
 692 // Return just the filename, not the path (basename)
 693 wxChar *wxFileNameFromPath (wxChar *path)
 694 {
 695     wxString p = path;
 696     wxString n = wxFileNameFromPath(p);
 697
 698     return path + p.length() - n.length();
 699 }
 700
 701 wxString wxFileNameFromPath (const wxString& path)
 702 {
 703     wxString name, ext;
 704     wxFileName::SplitPath(path, NULL, &name, &ext);
 705
 706     wxString fullname = name;
 707     if ( !ext.empty() )
 708     {
 709         fullname << wxFILE_SEP_EXT << ext;
 710     }
 711
 712     return fullname;
 713 }
 714
 715 // Return just the directory, or NULL if no directory
 716 wxChar *
 717 wxPathOnly (wxChar *path)
 718 {
 719     if (path && *path)
 720     {
 721         static wxChar buf[_MAXPATHLEN];
 722
 723         // Local copy
 724         wxStrcpy (buf, path);
 725
 726         int l = wxStrlen(path);
 727         int i = l - 1;
 728
 729         // Search backward for a backward or forward slash
 730         while (i > -1)
 731         {
 732 #if defined(__WXMAC__) && !defined(__DARWIN__)
 733             // Classic or Carbon CodeWarrior like
 734             // Carbon with Apple DevTools is Unix like
 735             if (path[i] == wxT(':') )
 736             {
 737                 buf[i] = 0;
 738                 return buf;
 739             }
 740 #else
 741             // Unix like or Windows
 742             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 743             {
 744                 buf[i] = 0;
 745                 return buf;
 746             }
 747 #endif
 748 #ifdef __VMS__
 749             if (path[i] == wxT(']'))
 750             {
 751                 buf[i+1] = 0;
 752                 return buf;
 753             }
 754 #endif
 755             i --;
 756         }
 757
 758 #if defined(__WXMSW__) || defined(__OS2__)
 759         // Try Drive specifier
 760         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 761         {
 762             // A:junk --> A:. (since A:.\junk Not A:\junk)
 763             buf[2] = wxT('.');
 764             buf[3] = wxT('\0');
 765             return buf;
 766         }
 767 #endif
 768     }
 769     return (wxChar *) NULL;
 770 }
 771
 772 // Return just the directory, or NULL if no directory
 773 wxString wxPathOnly (const wxString& path)
 774 {
 775     if (path != wxT(""))
 776     {
 777         wxChar buf[_MAXPATHLEN];
 778
 779         // Local copy
 780         wxStrcpy (buf, WXSTRINGCAST path);
 781
 782         int l = path.Length();
 783         int i = l - 1;
 784
 785         // Search backward for a backward or forward slash
 786         while (i > -1)
 787         {
 788 #if defined(__WXMAC__) && !defined(__DARWIN__)
 789             // Classic or Carbon CodeWarrior like
 790             // Carbon with Apple DevTools is Unix like
 791             if (path[i] == wxT(':') )
 792             {
 793                 buf[i] = 0;
 794                 return wxString(buf);
 795             }
 796 #else
 797             // Unix like or Windows
 798             if (path[i] == wxT('/') || path[i] == wxT('\\'))
 799             {
 800                 // Don't return an empty string
 801                 if (i == 0)
 802                     i ++;
 803                 buf[i] = 0;
 804                 return wxString(buf);
 805             }
 806 #endif
 807 #ifdef __VMS__
 808             if (path[i] == wxT(']'))
 809             {
 810                 buf[i+1] = 0;
 811                 return wxString(buf);
 812             }
 813 #endif
 814             i --;
 815         }
 816
 817 #if defined(__WXMSW__) || defined(__OS2__)
 818         // Try Drive specifier
 819         if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 820         {
 821             // A:junk --> A:. (since A:.\junk Not A:\junk)
 822             buf[2] = wxT('.');
 823             buf[3] = wxT('\0');
 824             return wxString(buf);
 825         }
 826 #endif
 827     }
 828     return wxString(wxT(""));
 829 }
 830
 831 // Utility for converting delimiters in DOS filenames to UNIX style
 832 // and back again - or we get nasty problems with delimiters.
 833 // Also, convert to lower case, since case is significant in UNIX.
 834
 835 #if defined(__WXMAC__)
 836
 837 #if TARGET_API_MAC_OSX
 838 #define kDefaultPathStyle kCFURLPOSIXPathStyle
 839 #else
 840 #define kDefaultPathStyle kCFURLHFSPathStyle
 841 #endif
 842
 843 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
 844 {
 845     CFURLRef fullURLRef;
 846     fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
 847     if ( additionalPathComponent )
 848     {
 849         CFURLRef parentURLRef = fullURLRef ;
 850         fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
 851             additionalPathComponent,false);
 852         CFRelease( parentURLRef ) ;
 853     }
 854     CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
 855     CFRelease( fullURLRef ) ;
 856     return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
 857 }
 858
 859 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
 860 {
 861     OSStatus err = noErr ;
 862     CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
 863     if ( NULL != url )
 864     {
 865         if ( CFURLGetFSRef(url, fsRef) == false )
 866             err = fnfErr ;
 867         CFRelease( url ) ;
 868     }
 869     else
 870     {
 871         err = fnfErr ;
 872     }
 873     return err ;
 874 }
 875
 876 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
 877 {
 878     CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
 879                                                       uniname->unicode,
 880                                                       uniname->length );
 881     return wxMacCFStringHolder(cfname).AsString() ;
 882 }
 883
 884 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 885 {
 886     FSRef fsRef ;
 887     if ( FSpMakeFSRef( spec , &fsRef) == noErr )
 888     {
 889         return wxMacFSRefToPath( &fsRef ) ;
 890     }
 891     return wxEmptyString ;
 892 }
 893
 894 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
 895 {
 896     OSStatus err = noErr ;
 897     FSRef fsRef ;
 898     wxMacPathToFSRef( path , &fsRef ) ;
 899     err = FSRefMakeFSSpec( &fsRef , spec ) ;
 900 }
 901
 902 #endif // __WXMAC__
 903
 904 void
 905 wxDos2UnixFilename (wxChar *s)
 906 {
 907   if (s)
 908     while (*s)
 909       {
 910         if (*s == _T('\\'))
 911           *s = _T('/');
 912 #ifdef __WXMSW__
 913         else
 914           *s = wxTolower (*s);        // Case INDEPENDENT
 915 #endif
 916         s++;
 917       }
 918 }
 919
 920 void
 921 #if defined(__WXMSW__) || defined(__OS2__)
 922 wxUnix2DosFilename (wxChar *s)
 923 #else
 924 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 925 #endif
 926 {
 927 // Yes, I really mean this to happen under DOS only! JACS
 928 #if defined(__WXMSW__) || defined(__OS2__)
 929   if (s)
 930     while (*s)
 931       {
 932         if (*s == wxT('/'))
 933           *s = wxT('\\');
 934         s++;
 935       }
 936 #endif
 937 }
 938
 939 // Concatenate two files to form third
 940 bool
 941 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 942 {
 943   wxString outfile;
 944   if ( !wxGetTempFileName( wxT("cat"), outfile) )
 945       return false;
 946
 947   FILE *fp1 wxDUMMY_INITIALIZE(NULL);
 948   FILE *fp2 = NULL;
 949   FILE *fp3 = NULL;
 950   // Open the inputs and outputs
 951   if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
 952       (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
 953       (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
 954     {
 955       if (fp1)
 956         fclose (fp1);
 957       if (fp2)
 958         fclose (fp2);
 959       if (fp3)
 960         fclose (fp3);
 961       return false;
 962     }
 963
 964   int ch;
 965   while ((ch = getc (fp1)) != EOF)
 966     (void) putc (ch, fp3);
 967   fclose (fp1);
 968
 969   while ((ch = getc (fp2)) != EOF)
 970     (void) putc (ch, fp3);
 971   fclose (fp2);
 972
 973   fclose (fp3);
 974   bool result = wxRenameFile(outfile, file3);
 975   return result;
 976 }
 977
 978 // Copy files
 979 bool
 980 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
 981 {
 982 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 983     // CopyFile() copies file attributes and modification time too, so use it
 984     // instead of our code if available
 985     //
 986     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
 987     if ( !::CopyFile(file1, file2, !overwrite) )
 988     {
 989         wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
 990                       file1.c_str(), file2.c_str());
 991
 992         return false;
 993     }
 994 #elif defined(__OS2__)
 995     if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
 996         return false;
 997 #else // !Win32
 998
 999     wxStructStat fbuf;
1000     // get permissions of file1
1001     if ( wxStat( file1.c_str(), &fbuf) != 0 )
1002     {
1003         // the file probably doesn't exist or we haven't the rights to read
1004         // from it anyhow
1005         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1006                       file1.c_str());
1007         return false;
1008     }
1009
1010     // open file1 for reading
1011     wxFile fileIn(file1, wxFile::read);
1012     if ( !fileIn.IsOpened() )
1013         return false;
1014
1015     // remove file2, if it exists. This is needed for creating
1016     // file2 with the correct permissions in the next step
1017     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1018     {
1019         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1020                       file2.c_str());
1021         return false;
1022     }
1023
1024     // reset the umask as we want to create the file with exactly the same
1025     // permissions as the original one
1026     wxCHANGE_UMASK(0);
1027
1028     // create file2 with the same permissions than file1 and open it for
1029     // writing
1030
1031     wxFile fileOut;
1032     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1033         return false;
1034
1035     // copy contents of file1 to file2
1036     char buf[4096];
1037     size_t count;
1038     for ( ;; )
1039     {
1040         count = fileIn.Read(buf, WXSIZEOF(buf));
1041         if ( fileIn.Error() )
1042             return false;
1043
1044         // end of file?
1045         if ( !count )
1046             break;
1047
1048         if ( fileOut.Write(buf, count) < count )
1049             return false;
1050     }
1051
1052     // we can expect fileIn to be closed successfully, but we should ensure
1053     // that fileOut was closed as some write errors (disk full) might not be
1054     // detected before doing this
1055     if ( !fileIn.Close() || !fileOut.Close() )
1056         return false;
1057
1058 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1059     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1060     // however
1061     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1062     {
1063         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1064                       file2.c_str());
1065         return false;
1066     }
1067 #endif // OS/2 || Mac
1068 #endif // __WXMSW__ && __WIN32__
1069
1070     return true;
1071 }
1072
1073 bool
1074 wxRenameFile (const wxString& file1, const wxString& file2)
1075 {
1076 #ifndef __WXWINCE__
1077     // Normal system call
1078   if ( wxRename (file1, file2) == 0 )
1079     return true;
1080 #endif
1081
1082   // Try to copy
1083   if (wxCopyFile(file1, file2)) {
1084     wxRemoveFile(file1);
1085     return true;
1086   }
1087   // Give up
1088   return false;
1089 }
1090
1091 bool wxRemoveFile(const wxString& file)
1092 {
1093 #if defined(__VISUALC__) \
1094  || defined(__BORLANDC__) \
1095  || defined(__WATCOMC__) \
1096  || defined(__DMC__) \
1097  || defined(__GNUWIN32__) \
1098  || (defined(__MWERKS__) && defined(__MSL__))
1099   int res = wxRemove(file);
1100 #elif defined(__WXMAC__)
1101   int res = unlink(wxFNCONV(file));
1102 #else
1103   int res = unlink(OS_FILENAME(file));
1104 #endif
1105
1106   return res == 0;
1107 }
1108
1109 bool wxMkdir(const wxString& dir, int perm)
1110 {
1111 #if defined(__WXMAC__) && !defined(__UNIX__)
1112   return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1113 #else // !Mac
1114     const wxChar *dirname = dir.c_str();
1115
1116     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1117     // for the GNU compiler
1118 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1119   #if defined(MSVCRT)
1120     wxUnusedVar(perm);
1121     if ( mkdir(wxFNCONV(dirname)) != 0 )
1122   #else
1123     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1124   #endif
1125 #elif defined(__OS2__)
1126     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1127 #elif defined(__DOS__)
1128   #if defined(__WATCOMC__)
1129     (void)perm;
1130     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1131   #elif defined(__DJGPP__)
1132     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1133   #else
1134     #error "Unsupported DOS compiler!"
1135   #endif
1136 #else  // !MSW, !DOS and !OS/2 VAC++
1137     (void)perm;
1138 #ifdef __WXWINCE__
1139     if ( !CreateDirectory(dirname, NULL) )
1140 #else
1141     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1142 #endif
1143 #endif // !MSW/MSW
1144     {
1145         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1146
1147         return false;
1148     }
1149
1150     return true;
1151 #endif // Mac/!Mac
1152 }
1153
1154 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1155 {
1156 #ifdef __VMS__
1157     return false; //to be changed since rmdir exists in VMS7.x
1158 #elif defined(__OS2__)
1159     return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1160 #else
1161
1162 #ifdef __WXWINCE__
1163     return (CreateDirectory(dir, NULL) != 0);
1164 #else
1165     return (wxRmDir(OS_FILENAME(dir)) == 0);
1166 #endif
1167
1168 #endif
1169 }
1170
1171 // does the path exists? (may have or not '/' or '\\' at the end)
1172 bool wxPathExists(const wxChar *pszPathName)
1173 {
1174     wxString strPath(pszPathName);
1175
1176 #if defined(__WINDOWS__) || defined(__OS2__)
1177     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1178     // so remove all trailing backslashes from the path - but don't do this for
1179     // the pathes "d:\" (which are different from "d:") nor for just "\"
1180     while ( wxEndsWithPathSeparator(strPath) )
1181     {
1182         size_t len = strPath.length();
1183         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1184             break;
1185
1186         strPath.Truncate(len - 1);
1187     }
1188 #endif // __WINDOWS__
1189
1190 #ifdef __OS2__
1191     // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1192     if (strPath.length() == 2 && strPath[1u] == _T(':'))
1193         strPath << _T('.');
1194 #endif
1195
1196 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1197     // stat() can't cope with network paths
1198     DWORD ret = ::GetFileAttributes(strPath);
1199
1200     return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1201 #else // !__WIN32__
1202
1203     wxStructStat st;
1204 #ifndef __VISAGECPP__
1205     return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1206 #else
1207     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1208     return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1209 #endif
1210
1211 #endif // __WIN32__/!__WIN32__
1212 }
1213
1214 // Get a temporary filename, opening and closing the file.
1215 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1216 {
1217     wxString filename = wxFileName::CreateTempFileName(prefix);
1218     if ( filename.empty() )
1219         return NULL;
1220
1221     if ( buf )
1222         wxStrcpy(buf, filename);
1223     else
1224         buf = MYcopystring(filename);
1225
1226     return buf;
1227 }
1228
1229 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1230 {
1231     buf = wxFileName::CreateTempFileName(prefix);
1232
1233     return !buf.empty();
1234 }
1235
1236 // Get first file name matching given wild card.
1237
1238 static wxDir *gs_dir = NULL;
1239 static wxString gs_dirPath;
1240
1241 wxString wxFindFirstFile(const wxChar *spec, int flags)
1242 {
1243     wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1244     if ( gs_dirPath.IsEmpty() )
1245         gs_dirPath = wxT(".");
1246     if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1247         gs_dirPath << wxFILE_SEP_PATH;
1248
1249     if (gs_dir)
1250         delete gs_dir;
1251     gs_dir = new wxDir(gs_dirPath);
1252
1253     if ( !gs_dir->IsOpened() )
1254     {
1255         wxLogSysError(_("Can not enumerate files '%s'"), spec);
1256         return wxEmptyString;
1257     }
1258
1259     int dirFlags;
1260     switch (flags)
1261     {
1262         case wxDIR:  dirFlags = wxDIR_DIRS; break;
1263         case wxFILE: dirFlags = wxDIR_FILES; break;
1264         default:     dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1265     }
1266
1267     wxString result;
1268     gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1269     if ( result.IsEmpty() )
1270     {
1271         wxDELETE(gs_dir);
1272         return result;
1273     }
1274
1275     return gs_dirPath + result;
1276 }
1277
1278 wxString wxFindNextFile()
1279 {
1280     wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1281
1282     wxString result;
1283     gs_dir->GetNext(&result);
1284
1285     if ( result.IsEmpty() )
1286     {
1287         wxDELETE(gs_dir);
1288         return result;
1289     }
1290
1291     return gs_dirPath + result;
1292 }
1293
1294
1295 // Get current working directory.
1296 // If buf is NULL, allocates space using new, else
1297 // copies into buf.
1298 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1299 {
1300 #ifdef __WXWINCE__
1301     return NULL;
1302 #else
1303     if ( !buf )
1304     {
1305         buf = new wxChar[sz + 1];
1306     }
1307
1308     bool ok wxDUMMY_INITIALIZE(false);
1309
1310     // for the compilers which have Unicode version of _getcwd(), call it
1311     // directly, for the others call the ANSI version and do the translation
1312 #if !wxUSE_UNICODE
1313     #define cbuf buf
1314 #else // wxUSE_UNICODE
1315     bool needsANSI = true;
1316
1317     #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1318         // This is not legal code as the compiler
1319         // is allowed destroy the wxCharBuffer.
1320         // wxCharBuffer c_buffer(sz);
1321         // char *cbuf = (char*)(const char*)c_buffer;
1322         char cbuf[_MAXPATHLEN];
1323     #endif
1324
1325     #ifdef HAVE_WGETCWD
1326         #if wxUSE_UNICODE_MSLU
1327             if ( wxGetOsVersion() != wxWIN95 )
1328         #else
1329             char *cbuf = NULL; // never really used because needsANSI will always be false
1330         #endif
1331             {
1332                 ok = _wgetcwd(buf, sz) != NULL;
1333                 needsANSI = false;
1334             }
1335     #endif
1336
1337     if ( needsANSI )
1338 #endif // wxUSE_UNICODE
1339     {
1340     #if defined(_MSC_VER) || defined(__MINGW32__)
1341         ok = _getcwd(cbuf, sz) != NULL;
1342     #elif defined(__WXMAC__) && !defined(__DARWIN__)
1343         char lbuf[1024] ;
1344         if ( getcwd( lbuf , sizeof( lbuf ) ) )
1345         {
1346             wxString res( lbuf , *wxConvCurrent ) ;
1347             wxStrcpy( buf , res ) ;
1348             ok = true;
1349         }
1350         else
1351             ok = false ;
1352     #elif defined(__OS2__)
1353         APIRET rc;
1354         ULONG ulDriveNum = 0;
1355         ULONG ulDriveMap = 0;
1356         rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1357         ok = rc == 0;
1358         if (ok)
1359         {
1360             sz -= 3;
1361             rc = ::DosQueryCurrentDir( 0 // current drive
1362                                       ,cbuf + 3
1363                                       ,(PULONG)&sz
1364                                      );
1365             cbuf[0] = 'A' + (ulDriveNum - 1);
1366             cbuf[1] = ':';
1367             cbuf[2] = '\\';
1368             ok = rc == 0;
1369         }
1370     #else // !Win32/VC++ !Mac !OS2
1371         ok = getcwd(cbuf, sz) != NULL;
1372     #endif // platform
1373
1374     #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1375         // finally convert the result to Unicode if needed
1376         wxConvFile.MB2WC(buf, cbuf, sz);
1377     #endif // wxUSE_UNICODE
1378     }
1379
1380     if ( !ok )
1381     {
1382         wxLogSysError(_("Failed to get the working directory"));
1383
1384         // VZ: the old code used to return "." on error which didn't make any
1385         //     sense at all to me - empty string is a better error indicator
1386         //     (NULL might be even better but I'm afraid this could lead to
1387         //     problems with the old code assuming the return is never NULL)
1388         buf[0] = _T('\0');
1389     }
1390     else // ok, but we might need to massage the path into the right format
1391     {
1392 #ifdef __DJGPP__
1393         // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1394         //     with / deliminers. We don't like that.
1395         for (wxChar *ch = buf; *ch; ch++)
1396         {
1397             if (*ch == wxT('/'))
1398                 *ch = wxT('\\');
1399         }
1400 #endif // __DJGPP__
1401
1402 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1403 //      he needs Unix as opposed to Win32 pathnames
1404 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1405         // another example of DOS/Unix mix (Cygwin)
1406         wxString pathUnix = buf;
1407         cygwin_conv_to_full_win32_path(pathUnix, buf);
1408 #endif // __CYGWIN__
1409     }
1410
1411     return buf;
1412
1413 #if !wxUSE_UNICODE
1414     #undef cbuf
1415 #endif
1416
1417 #endif
1418     // __WXWINCE__
1419 }
1420
1421 wxString wxGetCwd()
1422 {
1423     wxChar *buffer = new wxChar[_MAXPATHLEN];
1424     wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1425     wxString str( buffer );
1426     delete [] buffer;
1427
1428     return str;
1429 }
1430
1431 bool wxSetWorkingDirectory(const wxString& d)
1432 {
1433 #if defined(__OS2__)
1434     return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1435 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1436     return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1437 #elif defined(__WINDOWS__)
1438
1439 #ifdef __WIN32__
1440 #ifdef __WXWINCE__
1441     // No equivalent in WinCE
1442     return false;
1443 #else
1444     return (bool)(SetCurrentDirectory(d) != 0);
1445 #endif
1446 #else
1447     // Must change drive, too.
1448     bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1449     if (isDriveSpec)
1450     {
1451         wxChar firstChar = d[0];
1452
1453         // To upper case
1454         if (firstChar > 90)
1455             firstChar = firstChar - 32;
1456
1457         // To a drive number
1458         unsigned int driveNo = firstChar - 64;
1459         if (driveNo > 0)
1460         {
1461             unsigned int noDrives;
1462             _dos_setdrive(driveNo, &noDrives);
1463         }
1464     }
1465     bool success = (chdir(WXSTRINGCAST d) == 0);
1466
1467     return success;
1468 #endif
1469
1470 #endif
1471 }
1472
1473 // Get the OS directory if appropriate (such as the Windows directory).
1474 // On non-Windows platform, probably just return the empty string.
1475 wxString wxGetOSDirectory()
1476 {
1477 #ifdef __WXWINCE__
1478     return wxString(wxT("\\Windows"));
1479 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1480     wxChar buf[256];
1481     GetWindowsDirectory(buf, 256);
1482     return wxString(buf);
1483 #elif defined(__WXMAC__)
1484     return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1485 #else
1486     return wxEmptyString;
1487 #endif
1488 }
1489
1490 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1491 {
1492     size_t len = wxStrlen(pszFileName);
1493
1494     return len && wxIsPathSeparator(pszFileName[len - 1]);
1495 }
1496
1497 // find a file in a list of directories, returns false if not found
1498 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1499 {
1500     // we assume that it's not empty
1501     wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1502                  _T("empty file name in wxFindFileInPath"));
1503
1504     // skip path separator in the beginning of the file name if present
1505     if ( wxIsPathSeparator(*pszFile) )
1506         pszFile++;
1507
1508     // copy the path (strtok will modify it)
1509     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1510     wxStrcpy(szPath, pszPath);
1511
1512     wxString strFile;
1513     wxChar *pc, *save_ptr;
1514     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1515           pc != NULL;
1516           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1517     {
1518         // search for the file in this directory
1519         strFile = pc;
1520         if ( !wxEndsWithPathSeparator(pc) )
1521             strFile += wxFILE_SEP_PATH;
1522         strFile += pszFile;
1523
1524         if ( wxFileExists(strFile) ) {
1525             *pStr = strFile;
1526             break;
1527         }
1528     }
1529
1530     // suppress warning about unused variable save_ptr when wxStrtok() is a
1531     // macro which throws away its third argument
1532     save_ptr = pc;
1533
1534     delete [] szPath;
1535
1536     return pc != NULL;  // if true => we breaked from the loop
1537 }
1538
1539 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1540                              wxString *pstrPath,
1541                              wxString *pstrName,
1542                              wxString *pstrExt)
1543 {
1544     // it can be empty, but it shouldn't be NULL
1545     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1546
1547     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1548 }
1549
1550 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1551 {
1552 #ifdef __WXWINCE__
1553     FILETIME creationTime, lastAccessTime, lastWriteTime;
1554     HANDLE fileHandle = ::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
1555         0, FILE_ATTRIBUTE_NORMAL, 0);
1556     if (fileHandle == INVALID_HANDLE_VALUE)
1557         return 0;
1558     else
1559     {
1560         if (GetFileTime(fileHandle, & creationTime, & lastAccessTime, & lastWriteTime))
1561         {
1562             CloseHandle(fileHandle);
1563
1564             wxDateTime dateTime;
1565             FILETIME ftLocal;
1566             if ( !::FileTimeToLocalFileTime(&lastWriteTime, &ftLocal) )
1567             {
1568                 wxLogLastError(_T("FileTimeToLocalFileTime"));
1569             }
1570
1571             SYSTEMTIME st;
1572             if ( !::FileTimeToSystemTime(&ftLocal, &st) )
1573             {
1574                 wxLogLastError(_T("FileTimeToSystemTime"));
1575             }
1576
1577             dateTime.Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
1578                 st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
1579             return dateTime.GetTicks();
1580         }
1581         else
1582             return 0;
1583     }
1584 #else
1585     wxStructStat buf;
1586     wxStat( filename, &buf);
1587
1588     return buf.st_mtime;
1589 #endif
1590 }
1591
1592
1593 // Parses the filterStr, returning the number of filters.
1594 // Returns 0 if none or if there's a problem.
1595 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1596
1597 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr, wxArrayString& descriptions, wxArrayString& filters)
1598 {
1599     descriptions.Clear();
1600     filters.Clear();
1601
1602     wxString str(filterStr);
1603
1604     wxString description, filter;
1605     int pos = 0;
1606     while( pos != wxNOT_FOUND )
1607     {
1608         pos = str.Find(wxT('|'));
1609         if ( pos == wxNOT_FOUND )
1610         {
1611             // if there are no '|'s at all in the string just take the entire
1612             // string as filter and make description empty for later autocompletion
1613             if ( filters.IsEmpty() )
1614             {
1615                 descriptions.Add(wxEmptyString);
1616                 filters.Add(filterStr);
1617             }
1618             else
1619             {
1620                 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1621             }
1622
1623             break;
1624         }
1625
1626         description = str.Left(pos);
1627         str = str.Mid(pos + 1);
1628         pos = str.Find(wxT('|'));
1629         if ( pos == wxNOT_FOUND )
1630         {
1631             filter = str;
1632         }
1633         else
1634         {
1635             filter = str.Left(pos);
1636             str = str.Mid(pos + 1);
1637         }
1638
1639         descriptions.Add(description);
1640         filters.Add(filter);
1641     }
1642
1643 #if defined(__WXMOTIF__)
1644     // split it so there is one wildcard per entry
1645     for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1646     {
1647         pos = filters[i].Find(wxT(';'));
1648         if (pos != wxNOT_FOUND)
1649         {
1650             // first split only filters
1651             descriptions.Insert(descriptions[i],i+1);
1652             filters.Insert(filters[i].Mid(pos+1),i+1);
1653             filters[i]=filters[i].Left(pos);
1654
1655             // autoreplace new filter in description with pattern:
1656             //     C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1657             // cause split into:
1658             //     C/C++ Files(*.cpp)|*.cpp
1659             //     C/C++ Files(*.c;*.h)|*.c;*.h
1660             // and next iteration cause another split into:
1661             //     C/C++ Files(*.cpp)|*.cpp
1662             //     C/C++ Files(*.c)|*.c
1663             //     C/C++ Files(*.h)|*.h
1664             for ( size_t k=i;k<i+2;k++ )
1665             {
1666                 pos = descriptions[k].Find(filters[k]);
1667                 if (pos != wxNOT_FOUND)
1668                 {
1669                     wxString before = descriptions[k].Left(pos);
1670                     wxString after = descriptions[k].Mid(pos+filters[k].Len());
1671                     pos = before.Find(_T('('),true);
1672                     if (pos>before.Find(_T(')'),true))
1673                     {
1674                         before = before.Left(pos+1);
1675                         before << filters[k];
1676                         pos = after.Find(_T(')'));
1677                         int pos1 = after.Find(_T('('));
1678                         if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1679                         {
1680                             before << after.Mid(pos);
1681                             descriptions[k] = before;
1682                         }
1683                     }
1684                 }
1685             }
1686         }
1687     }
1688 #endif
1689
1690     // autocompletion
1691     for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1692     {
1693         if ( descriptions[j] == wxEmptyString && filters[j] != wxEmptyString )
1694         {
1695             descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1696         }
1697     }
1698
1699     return filters.GetCount();
1700 }
1701
1702
1703 //------------------------------------------------------------------------
1704 // wild character routines
1705 //------------------------------------------------------------------------
1706
1707 bool wxIsWild( const wxString& pattern )
1708 {
1709     wxString tmp = pattern;
1710     wxChar *pat = WXSTRINGCAST(tmp);
1711     while (*pat)
1712     {
1713         switch (*pat++)
1714         {
1715         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1716             return true;
1717         case wxT('\\'):
1718             if (!*pat++)
1719                 return false;
1720         }
1721     }
1722     return false;
1723 }
1724
1725 /*
1726 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1727 *
1728 * The match procedure is public domain code (from ircII's reg.c)
1729 */
1730
1731 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1732 {
1733         if (text.empty())
1734         {
1735                 /* Match if both are empty. */
1736                 return pat.empty();
1737         }
1738
1739         const wxChar *m = pat.c_str(),
1740         *n = text.c_str(),
1741         *ma = NULL,
1742         *na = NULL,
1743         *mp = NULL,
1744         *np = NULL;
1745         int just = 0,
1746         pcount = 0,
1747         acount = 0,
1748         count = 0;
1749
1750         if (dot_special && (*n == wxT('.')))
1751         {
1752                 /* Never match so that hidden Unix files
1753                  * are never found. */
1754                 return false;
1755         }
1756
1757         for (;;)
1758         {
1759                 if (*m == wxT('*'))
1760                 {
1761                         ma = ++m;
1762                         na = n;
1763                         just = 1;
1764                         mp = NULL;
1765                         acount = count;
1766                 }
1767                 else if (*m == wxT('?'))
1768                 {
1769                         m++;
1770                         if (!*n++)
1771                         return false;
1772                 }
1773                 else
1774                 {
1775                         if (*m == wxT('\\'))
1776                         {
1777                                 m++;
1778                                 /* Quoting "nothing" is a bad thing */
1779                                 if (!*m)
1780                                 return false;
1781                         }
1782                         if (!*m)
1783                         {
1784                                 /*
1785                                 * If we are out of both strings or we just
1786                                 * saw a wildcard, then we can say we have a
1787                                 * match
1788                                 */
1789                                 if (!*n)
1790                                 return true;
1791                                 if (just)
1792                                 return true;
1793                                 just = 0;
1794                                 goto not_matched;
1795                         }
1796                         /*
1797                         * We could check for *n == NULL at this point, but
1798                         * since it's more common to have a character there,
1799                         * check to see if they match first (m and n) and
1800                         * then if they don't match, THEN we can check for
1801                         * the NULL of n
1802                         */
1803                         just = 0;
1804                         if (*m == *n)
1805                         {
1806                                 m++;
1807                                 if (*n == wxT(' '))
1808                                 mp = NULL;
1809                                 count++;
1810                                 n++;
1811                         }
1812                         else
1813                         {
1814
1815                                 not_matched:
1816
1817                                 /*
1818                                 * If there are no more characters in the
1819                                 * string, but we still need to find another
1820                                 * character (*m != NULL), then it will be
1821                                 * impossible to match it
1822                                 */
1823                                 if (!*n)
1824                                 return false;
1825                                 if (mp)
1826                                 {
1827                                         m = mp;
1828                                         if (*np == wxT(' '))
1829                                         {
1830                                                 mp = NULL;
1831                                                 goto check_percent;
1832                                         }
1833                                         n = ++np;
1834                                         count = pcount;
1835                                 }
1836                                 else
1837                                 check_percent:
1838
1839                                 if (ma)
1840                                 {
1841                                         m = ma;
1842                                         n = ++na;
1843                                         count = acount;
1844                                 }
1845                                 else
1846                                 return false;
1847                         }
1848                 }
1849         }
1850 }
1851
1852
1853 #ifdef __VISUALC__
1854     #pragma warning(default:4706)   // assignment within conditional expression
1855 #endif // VC++