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 #ifdef __GNUG__
  13     #pragma implementation "filefn.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18 #include "wx/defs.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25     #include "wx/defs.h"
  26 #endif
  27
  28 #include "wx/utils.h"
  29 #include <wx/intl.h>
  30
  31 // there are just too many of those...
  32 #ifdef __VISUALC__
  33     #pragma warning(disable:4706)   // assignment within conditional expression
  34 #endif // VC++
  35
  36 #include <ctype.h>
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #if !defined(__WATCOMC__)
  41     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  42         #include <errno.h>
  43     #endif
  44 #endif
  45
  46 #include <time.h>
  47
  48 #ifndef __MWERKS__
  49     #include <sys/types.h>
  50     #include <sys/stat.h>
  51 #else
  52     #include <stat.h>
  53     #include <unistd.h>
  54 #endif
  55
  56 #ifdef __UNIX__
  57     #include <unistd.h>
  58     #include <dirent.h>
  59 #endif
  60
  61 #ifdef __WINDOWS__
  62 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
  63     #include <direct.h>
  64     #include <dos.h>
  65 #endif // __WINDOWS__
  66 #endif // native Win compiler
  67
  68 #ifdef __GNUWIN32__
  69     #ifndef __TWIN32__
  70         #include <sys/unistd.h>
  71     #endif
  72
  73     #define stricmp strcasecmp
  74 #endif
  75
  76 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  77                     // this (3.1 I believe) and how to test for it.
  78                     // If this works for Borland 4.0 as well, then no worries.
  79     #include <dir.h>
  80 #endif
  81
  82 #ifdef __SALFORDC__
  83     #include <dir.h>
  84     #include <unix.h>
  85 #endif
  86
  87 #include "wx/setup.h"
  88 #include "wx/log.h"
  89
  90 // No, Cygwin doesn't appear to have fnmatch.h after all.
  91 #if defined(HAVE_FNMATCH_H)
  92     #include "fnmatch.h"
  93 #endif
  94
  95 #ifdef __WINDOWS__
  96     #include "windows.h"
  97 #endif
  98
  99 #define _MAXPATHLEN 500
 100
 101 extern wxChar *wxBuffer;
 102 #ifdef __WXMAC__
 103     extern wxChar gwxMacFileName[] ;
 104     extern wxChar gwxMacFileName2[] ;
 105     extern wxChar gwxMacFileName3[] ;
 106 #endif
 107
 108 #if !USE_SHARED_LIBRARIES
 109     IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 110 #endif
 111
 112 void wxPathList::Add (const wxString& path)
 113 {
 114     wxStringList::Add (WXSTRINGCAST path);
 115 }
 116
 117 // Add paths e.g. from the PATH environment variable
 118 void wxPathList::AddEnvList (const wxString& envVariable)
 119 {
 120   static const wxChar PATH_TOKS[] =
 121 #ifdef __WINDOWS__
 122         _T(" ;"); // Don't seperate with colon in DOS (used for drive)
 123 #else
 124         _T(" :;");
 125 #endif
 126
 127   wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 128   if (val && *val)
 129     {
 130       wxChar *s = copystring (val);
 131       wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 132
 133       if (token)
 134         {
 135           Add (copystring (token));
 136           while (token)
 137             {
 138               if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
 139                 Add (wxString(token));
 140             }
 141         }
 142       delete[]s;
 143     }
 144 }
 145
 146 // Given a full filename (with path), ensure that that file can
 147 // be accessed again USING FILENAME ONLY by adding the path
 148 // to the list if not already there.
 149 void wxPathList::EnsureFileAccessible (const wxString& path)
 150 {
 151     wxString path_only(wxPathOnly(path));
 152     if ( !path_only.IsEmpty() )
 153     {
 154         if ( !Member(path_only) )
 155             Add(path_only);
 156     }
 157 }
 158
 159 bool wxPathList::Member (const wxString& path)
 160 {
 161   for (wxNode * node = First (); node != NULL; node = node->Next ())
 162   {
 163       wxString path2((wxChar *) node->Data ());
 164       if (
 165 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 166       // Case INDEPENDENT
 167           path.CompareTo (path2, wxString::ignoreCase) == 0
 168 #else
 169       // Case sensitive File System
 170           path.CompareTo (path2) == 0
 171 #endif
 172         )
 173         return TRUE;
 174   }
 175   return FALSE;
 176 }
 177
 178 wxString wxPathList::FindValidPath (const wxString& file)
 179 {
 180   if (wxFileExists (wxExpandPath(wxBuffer, file)))
 181     return wxString(wxBuffer);
 182
 183   wxChar buf[_MAXPATHLEN];
 184   wxStrcpy(buf, wxBuffer);
 185
 186   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 187   filename = IsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 188
 189   for (wxNode * node = First (); node; node = node->Next ())
 190     {
 191       wxChar *path = (wxChar *) node->Data ();
 192       wxStrcpy (wxBuffer, path);
 193       wxChar ch = wxBuffer[wxStrlen(wxBuffer)-1];
 194       if (ch != _T('\\') && ch != _T('/'))
 195         wxStrcat (wxBuffer, _T("/"));
 196       wxStrcat (wxBuffer, filename);
 197 #ifdef __WINDOWS__
 198       Unix2DosFilename (wxBuffer);
 199 #endif
 200       if (wxFileExists (wxBuffer))
 201       {
 202         return wxString(wxBuffer);        // Found!
 203       }
 204     }                                // for()
 205
 206   return wxString(_T(""));                    // Not found
 207 }
 208
 209 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 210 {
 211   wxString f = FindValidPath(file);
 212   if (wxIsAbsolutePath(f))
 213     return f;
 214   else
 215   {
 216     wxChar buf[500];
 217     wxGetWorkingDirectory(buf, 499);
 218     int len = (int)wxStrlen(buf);
 219     wxChar lastCh = 0;
 220     if (len > 0)
 221       lastCh = buf[len-1];
 222     if (lastCh != _T('/') && lastCh != _T('\\'))
 223     {
 224 #ifdef __WINDOWS__
 225       wxStrcat(buf, _T("\\"));
 226 #else
 227       wxStrcat(buf, _T("/"));
 228 #endif
 229     }
 230     wxStrcat(buf, (const wxChar *)f);
 231     wxStrcpy(wxBuffer, buf);
 232     return wxString(wxBuffer);
 233   }
 234 }
 235
 236 bool
 237 wxFileExists (const wxString& filename)
 238 {
 239 #ifdef __GNUWIN32__ // (fix a B20 bug)
 240   if (GetFileAttributes(filename) == 0xFFFFFFFF)
 241     return FALSE;
 242   else
 243     return TRUE;
 244 #elif defined(__WXMAC__)
 245           struct stat stbuf;
 246         wxStrcpy( gwxMacFileName , filename ) ;
 247         wxUnix2MacFilename( gwxMacFileName ) ;
 248           if (gwxMacFileName && stat (WXSTRINGCAST gwxMacFileName, &stbuf) == 0)
 249             return TRUE;
 250     return FALSE ;
 251 #else
 252
 253 #ifdef __SALFORDC__
 254   struct _stat stbuf;
 255 #else
 256   struct stat stbuf;
 257 #endif
 258
 259   if ((filename != _T("")) && stat (FNSTRINGCAST filename.fn_str(), &stbuf) == 0)
 260     return TRUE;
 261   return FALSE;
 262 #endif
 263 }
 264
 265 /* Vadim's alternative implementation
 266
 267 // does the file exist?
 268 bool wxFileExists(const char *pszFileName)
 269 {
 270   struct stat st;
 271   return !access(pszFileName, 0) &&
 272          !stat(pszFileName, &st) &&
 273          (st.st_mode & S_IFREG);
 274 }
 275 */
 276
 277 bool
 278 wxIsAbsolutePath (const wxString& filename)
 279 {
 280   if (filename != "")
 281     {
 282       if (filename[0] == _T('/')
 283 #ifdef __VMS__
 284       || (filename[0] == _T('[') && filename[1] != _T('.'))
 285 #endif
 286 #ifdef __WINDOWS__
 287       /* MSDOS */
 288       || filename[0] == _T('\\') || (wxIsalpha (filename[0]) && filename[1] == _T(':'))
 289 #endif
 290         )
 291         return TRUE;
 292     }
 293   return FALSE;
 294 }
 295
 296 /*
 297  * Strip off any extension (dot something) from end of file,
 298  * IF one exists. Inserts zero into buffer.
 299  *
 300  */
 301
 302 void wxStripExtension(wxChar *buffer)
 303 {
 304   int len = wxStrlen(buffer);
 305   int i = len-1;
 306   while (i > 0)
 307   {
 308     if (buffer[i] == _T('.'))
 309     {
 310       buffer[i] = 0;
 311       break;
 312     }
 313     i --;
 314   }
 315 }
 316
 317 void wxStripExtension(wxString& buffer)
 318 {
 319   size_t len = buffer.Length();
 320   size_t i = len-1;
 321   while (i > 0)
 322   {
 323     if (buffer.GetChar(i) == _T('.'))
 324     {
 325       buffer = buffer.Left(i);
 326       break;
 327     }
 328     i --;
 329   }
 330 }
 331
 332 // Destructive removal of /./ and /../ stuff
 333 wxChar *wxRealPath (wxChar *path)
 334 {
 335 #ifdef __WXMSW__
 336   static const wxChar SEP = _T('\\');
 337   Unix2DosFilename(path);
 338 #else
 339   static const wxChar SEP = _T('/');
 340 #endif
 341   if (path[0] && path[1]) {
 342     /* MATTHEW: special case "/./x" */
 343     wxChar *p;
 344     if (path[2] == SEP && path[1] == _T('.'))
 345       p = &path[0];
 346     else
 347       p = &path[2];
 348     for (; *p; p++)
 349       {
 350         if (*p == SEP)
 351           {
 352             if (p[1] == _T('.') && p[2] == _T('.') && (p[3] == SEP || p[3] == _T('\0')))
 353               {
 354                 wxChar *q;
 355                 for (q = p - 1; q >= path && *q != SEP; q--);
 356                 if (q[0] == SEP && (q[1] != _T('.') || q[2] != _T('.') || q[3] != SEP)
 357                     && (q - 1 <= path || q[-1] != SEP))
 358                   {
 359                     wxStrcpy (q, p + 3);
 360                     if (path[0] == _T('\0'))
 361                       {
 362                         path[0] = SEP;
 363                         path[1] = _T('\0');
 364                       }
 365 #ifdef __WXMSW__
 366                     /* Check that path[2] is NULL! */
 367                     else if (path[1] == _T(':') && !path[2])
 368                       {
 369                         path[2] = SEP;
 370                         path[3] = _T('\0');
 371                       }
 372 #endif
 373                     p = q - 1;
 374                   }
 375               }
 376             else if (p[1] == _T('.') && (p[2] == SEP || p[2] == _T('\0')))
 377               wxStrcpy (p, p + 2);
 378           }
 379       }
 380   }
 381   return path;
 382 }
 383
 384 // Must be destroyed
 385 wxChar *wxCopyAbsolutePath(const wxString& filename)
 386 {
 387   if (filename == _T(""))
 388     return (wxChar *) NULL;
 389
 390   if (! IsAbsolutePath(wxExpandPath(wxBuffer, filename))) {
 391     wxChar  buf[_MAXPATHLEN];
 392     buf[0] = _T('\0');
 393     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 394     wxChar ch = buf[wxStrlen(buf) - 1];
 395 #ifdef __WXMSW__
 396     if (ch != _T('\\') && ch != _T('/'))
 397         wxStrcat(buf, _T("\\"));
 398 #else
 399     if (ch != _T('/'))
 400         wxStrcat(buf, _T("/"));
 401 #endif
 402     wxStrcat(buf, wxBuffer);
 403     return copystring( wxRealPath(buf) );
 404   }
 405   return copystring( wxBuffer );
 406 }
 407
 408 /*-
 409  Handles:
 410    ~/ => home dir
 411    ~user/ => user's home dir
 412    If the environment variable a = "foo" and b = "bar" then:
 413    Unix:
 414         $a        =>        foo
 415         $a$b        =>        foobar
 416         $a.c        =>        foo.c
 417         xxx$a        =>        xxxfoo
 418         ${a}!        =>        foo!
 419         $(b)!        =>        bar!
 420         \$a        =>        \$a
 421    MSDOS:
 422         $a        ==>        $a
 423         $(a)        ==>        foo
 424         $(a)$b        ==>        foo$b
 425         $(a)$(b)==>        foobar
 426         test.$$        ==>        test.$$
 427  */
 428
 429 /* input name in name, pathname output to buf. */
 430
 431 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 432 {
 433     register wxChar *d, *s, *nm;
 434     wxChar          lnm[_MAXPATHLEN];
 435     int                                q;
 436
 437     // Some compilers don't like this line.
 438 //    const wxChar    trimchars[] = _T("\n \t");
 439
 440     wxChar      trimchars[4];
 441     trimchars[0] = _T('\n');
 442     trimchars[1] = _T(' ');
 443     trimchars[2] = _T('\t');
 444     trimchars[3] = 0;
 445
 446 #ifdef __WXMSW__
 447      const wxChar     SEP = _T('\\');
 448 #else
 449      const wxChar     SEP = _T('/');
 450 #endif
 451     buf[0] = _T('\0');
 452     if (name == NULL || *name == _T('\0'))
 453         return buf;
 454     nm = copystring(name); // Make a scratch copy
 455     wxChar *nm_tmp = nm;
 456
 457     /* Skip leading whitespace and cr */
 458     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 459         nm++;
 460     /* And strip off trailing whitespace and cr */
 461     s = nm + (q = wxStrlen(nm)) - 1;
 462     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 463         *s = _T('\0');
 464
 465     s = nm;
 466     d = lnm;
 467 #ifdef __WXMSW__
 468     q = FALSE;
 469 #else
 470     q = nm[0] == _T('\\') && nm[1] == _T('~');
 471 #endif
 472
 473     /* Expand inline environment variables */
 474     while ((*d++ = *s)) {
 475 #ifndef __WXMSW__
 476         if (*s == _T('\\')) {
 477             if ((*(d - 1) = *++s)) {
 478                 s++;
 479                 continue;
 480             } else
 481                 break;
 482         } else
 483 #endif
 484 #ifdef __WXMSW__
 485         if (*s++ == _T('$') && (*s == _T('{') || *s == _T(')')))
 486 #else
 487         if (*s++ == _T('$'))
 488 #endif
 489         {
 490             register wxChar  *start = d;
 491             register int     braces = (*s == _T('{') || *s == _T('('));
 492             register wxChar  *value;
 493             while ((*d++ = *s))
 494                 if (braces ? (*s == _T('}') || *s == _T(')')) : !(wxIsalnum(*s) || *s == _T('_')) )
 495                     break;
 496                 else
 497                     s++;
 498             *--d = 0;
 499             value = wxGetenv(braces ? start + 1 : start);
 500             if (value) {
 501                 for ((d = start - 1); (*d++ = *value++););
 502                 d--;
 503                 if (braces && *s)
 504                     s++;
 505             }
 506         }
 507     }
 508
 509     /* Expand ~ and ~user */
 510     nm = lnm;
 511     s = _T("");
 512     if (nm[0] == _T('~') && !q)
 513     {
 514         /* prefix ~ */
 515         if (nm[1] == SEP || nm[1] == 0)
 516         {        /* ~/filename */
 517             if ((s = wxGetUserHome(_T(""))) != NULL) {
 518                 if (*++nm)
 519                     nm++;
 520             }
 521         } else
 522         {                /* ~user/filename */
 523             register wxChar  *nnm;
 524             register wxChar  *home;
 525             for (s = nm; *s && *s != SEP; s++);
 526             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 527             was_sep = (*s == SEP);
 528             nnm = *s ? s + 1 : s;
 529             *s = 0;
 530             if ((home = wxGetUserHome(wxString(nm + 1))) == NULL) {
 531                if (was_sep) /* replace only if it was there: */
 532                    *s = SEP;
 533                 s = _T("");
 534             } else {
 535                 nm = nnm;
 536                 s = home;
 537             }
 538         }
 539     }
 540
 541     d = buf;
 542     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 543         /* Copy home dir */
 544         while (_T('\0') != (*d++ = *s++))
 545           /* loop */;
 546         // Handle root home
 547         if (d - 1 > buf && *(d - 2) != SEP)
 548           *(d - 1) = SEP;
 549     }
 550     s = nm;
 551     while ((*d++ = *s++));
 552
 553     delete[] nm_tmp; // clean up alloc
 554     /* Now clean up the buffer */
 555     return wxRealPath(buf);
 556 }
 557
 558
 559 /* Contract Paths to be build upon an environment variable
 560    component:
 561
 562    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 563
 564    The call wxExpandPath can convert these back!
 565  */
 566 wxChar *
 567 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 568 {
 569   static wxChar dest[_MAXPATHLEN];
 570
 571   if (filename == _T(""))
 572     return (wxChar *) NULL;
 573
 574   wxStrcpy (dest, WXSTRINGCAST filename);
 575 #ifdef __WXMSW__
 576   Unix2DosFilename(dest);
 577 #endif
 578
 579   // Handle environment
 580   wxChar *val = (wxChar *) NULL;
 581   wxChar *tcp = (wxChar *) NULL;
 582   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 583      (tcp = wxStrstr (dest, val)) != NULL)
 584     {
 585         wxStrcpy (wxBuffer, tcp + wxStrlen (val));
 586         *tcp++ = _T('$');
 587         *tcp++ = _T('{');
 588         wxStrcpy (tcp, WXSTRINGCAST envname);
 589         wxStrcat (tcp, _T("}"));
 590         wxStrcat (tcp, wxBuffer);
 591     }
 592
 593   // Handle User's home (ignore root homes!)
 594   size_t len = 0;
 595   if ((val = wxGetUserHome (user)) != NULL &&
 596       (len = wxStrlen(val)) > 2 &&
 597       wxStrncmp(dest, val, len) == 0)
 598     {
 599       wxStrcpy(wxBuffer, _T("~"));
 600       if (user != _T(""))
 601              wxStrcat(wxBuffer, (const wxChar*) user);
 602 #ifdef __WXMSW__
 603 //      strcat(wxBuffer, "\\");
 604 #else
 605 //      strcat(wxBuffer, "/");
 606 #endif
 607       wxStrcat(wxBuffer, dest + len);
 608       wxStrcpy (dest, wxBuffer);
 609     }
 610
 611   return dest;
 612 }
 613
 614 // Return just the filename, not the path
 615 // (basename)
 616 wxChar *wxFileNameFromPath (wxChar *path)
 617 {
 618   if (path)
 619     {
 620       register wxChar *tcp;
 621
 622       tcp = path + wxStrlen (path);
 623       while (--tcp >= path)
 624         {
 625           if (*tcp == _T('/') || *tcp == _T('\\')
 626 #ifdef __VMS__
 627      || *tcp == _T(':') || *tcp == _T(']'))
 628 #else
 629      )
 630 #endif
 631             return tcp + 1;
 632         }                        /* while */
 633 #ifdef __WXMSW__
 634       if (wxIsalpha (*path) && *(path + 1) == _T(':'))
 635         return path + 2;
 636 #endif
 637     }
 638   return path;
 639 }
 640
 641 wxString wxFileNameFromPath (const wxString& path1)
 642 {
 643   if (path1 != _T(""))
 644   {
 645
 646       wxChar *path = WXSTRINGCAST path1 ;
 647       register wxChar *tcp;
 648
 649       tcp = path + wxStrlen (path);
 650       while (--tcp >= path)
 651           {
 652             if (*tcp == _T('/') || *tcp == _T('\\')
 653 #ifdef __VMS__
 654         || *tcp == _T(':') || *tcp == _T(']'))
 655 #else
 656         )
 657 #endif
 658                 return wxString(tcp + 1);
 659             }                        /* while */
 660 #ifdef __WXMSW__
 661       if (wxIsalpha (*path) && *(path + 1) == _T(':'))
 662             return wxString(path + 2);
 663 #endif
 664     }
 665   // Yes, this should return the path, not an empty string, otherwise
 666   // we get "thing.txt" -> "".
 667   return path1;
 668 }
 669
 670 // Return just the directory, or NULL if no directory
 671 wxChar *
 672 wxPathOnly (wxChar *path)
 673 {
 674   if (path && *path)
 675     {
 676       static wxChar buf[_MAXPATHLEN];
 677
 678       // Local copy
 679       wxStrcpy (buf, path);
 680
 681       int l = wxStrlen(path);
 682       bool done = FALSE;
 683
 684       int i = l - 1;
 685
 686       // Search backward for a backward or forward slash
 687       while (!done && i > -1)
 688       {
 689         // ] is for VMS
 690         if (path[i] == _T('/') || path[i] == _T('\\') || path[i] == _T(']'))
 691         {
 692           done = TRUE;
 693 #ifdef __VMS__
 694           buf[i+1] = 0;
 695 #else
 696           buf[i] = 0;
 697 #endif
 698
 699           return buf;
 700         }
 701         else i --;
 702       }
 703
 704 #ifdef __WXMSW__
 705       // Try Drive specifier
 706       if (wxIsalpha (buf[0]) && buf[1] == _T(':'))
 707         {
 708           // A:junk --> A:. (since A:.\junk Not A:\junk)
 709           buf[2] = _T('.');
 710           buf[3] = _T('\0');
 711           return buf;
 712         }
 713 #endif
 714     }
 715
 716   return (wxChar *) NULL;
 717 }
 718
 719 // Return just the directory, or NULL if no directory
 720 wxString wxPathOnly (const wxString& path)
 721 {
 722   if (path != "")
 723     {
 724       wxChar buf[_MAXPATHLEN];
 725
 726       // Local copy
 727       wxStrcpy (buf, WXSTRINGCAST path);
 728
 729       int l = path.Length();
 730       bool done = FALSE;
 731
 732       int i = l - 1;
 733
 734       // Search backward for a backward or forward slash
 735       while (!done && i > -1)
 736       {
 737         // ] is for VMS
 738         if (path[i] == _T('/') || path[i] == _T('\\') || path[i] == _T(']'))
 739         {
 740           done = TRUE;
 741 #ifdef __VMS__
 742           buf[i+1] = 0;
 743 #else
 744           buf[i] = 0;
 745 #endif
 746
 747           return wxString(buf);
 748         }
 749         else i --;
 750       }
 751
 752 #ifdef __WXMSW__
 753       // Try Drive specifier
 754       if (wxIsalpha (buf[0]) && buf[1] == _T(':'))
 755         {
 756           // A:junk --> A:. (since A:.\junk Not A:\junk)
 757           buf[2] = _T('.');
 758           buf[3] = _T('\0');
 759           return wxString(buf);
 760         }
 761 #endif
 762     }
 763
 764   return wxString(_T(""));
 765 }
 766
 767 // Utility for converting delimiters in DOS filenames to UNIX style
 768 // and back again - or we get nasty problems with delimiters.
 769 // Also, convert to lower case, since case is significant in UNIX.
 770
 771 #ifdef __WXMAC__
 772 void
 773 wxMac2UnixFilename (wxChar *s)
 774 {
 775         if (s)
 776         {
 777                 memmove( s+1 , s ,(strlen( s ) + 1)*sizeof(wxChar)) ;
 778                 if ( *s == _T(':') )
 779                         *s = _T('.') ;
 780                 else
 781                         *s = _T('/') ;
 782
 783                 while (*s)
 784                 {
 785                         if (*s == _T(':'))
 786                           *s = _T('/');
 787                         else
 788                           *s = wxTolower(*s);        // Case INDEPENDENT
 789                         s++;
 790                 }
 791         }
 792 }
 793
 794 void
 795 wxUnix2MacFilename (wxChar *s)
 796 {
 797         if (s)
 798         {
 799                 if ( *s == _T('.') )
 800                 {
 801                         // relative path , since it goes on with slash which is translated to a :
 802                         memmove( s , s+1 ,strlen( s )*sizeof(wxChar) ) ;
 803                 }
 804                 else if ( *s == _T('/') )
 805                 {
 806                         // absolute path -> on mac just start with the drive name
 807                         memmove( s , s+1 ,strlen( s )*sizeof(wxChar) ) ;
 808                 }
 809                 else
 810                 {
 811                         wxASSERT_MSG( 1 , _T("unknown path beginning") ) ;
 812                 }
 813                 while (*s)
 814                 {
 815                         if (*s == _T('/') || *s == _T('\\'))
 816                                   *s = _T(':');
 817
 818                         s++ ;
 819                 }
 820         }
 821 }
 822 #endif
 823 void
 824 wxDos2UnixFilename (wxChar *s)
 825 {
 826   if (s)
 827     while (*s)
 828       {
 829         if (*s == _T('\\'))
 830           *s = _T('/');
 831 #ifdef __WXMSW__
 832         else
 833           *s = wxTolower(*s);        // Case INDEPENDENT
 834 #endif
 835         s++;
 836       }
 837 }
 838
 839 void
 840 #ifdef __WXMSW__
 841 wxUnix2DosFilename (wxChar *s)
 842 #else
 843 wxUnix2DosFilename (wxChar *WXUNUSED(s))
 844 #endif
 845 {
 846 // Yes, I really mean this to happen under DOS only! JACS
 847 #ifdef __WXMSW__
 848   if (s)
 849     while (*s)
 850       {
 851         if (*s == _T('/'))
 852           *s = _T('\\');
 853         s++;
 854       }
 855 #endif
 856 }
 857
 858 // Concatenate two files to form third
 859 bool
 860 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 861 {
 862   wxChar *outfile = wxGetTempFileName("cat");
 863
 864   FILE *fp1 = (FILE *) NULL;
 865   FILE *fp2 = (FILE *) NULL;
 866   FILE *fp3 = (FILE *) NULL;
 867   // Open the inputs and outputs
 868 #ifdef __WXMAC__
 869         wxStrcpy( gwxMacFileName , file1 ) ;
 870         wxUnix2MacFilename( gwxMacFileName ) ;
 871         wxStrcpy( gwxMacFileName2 , file2) ;
 872         wxUnix2MacFilename( gwxMacFileName2 ) ;
 873         wxStrcpy( gwxMacFileName3 , outfile) ;
 874         wxUnix2MacFilename( gwxMacFileName3 ) ;
 875
 876   if ((fp1 = fopen (gwxMacFileName, "rb")) == NULL ||
 877       (fp2 = fopen (gwxMacFileName2, "rb")) == NULL ||
 878       (fp3 = fopen (gwxMacFileName3, "wb")) == NULL)
 879 #else
 880   if ((fp1 = fopen (FNSTRINGCAST file1.fn_str(), "rb")) == NULL ||
 881       (fp2 = fopen (FNSTRINGCAST file2.fn_str(), "rb")) == NULL ||
 882       (fp3 = fopen (wxFNCONV(outfile), "wb")) == NULL)
 883 #endif
 884     {
 885       if (fp1)
 886         fclose (fp1);
 887       if (fp2)
 888         fclose (fp2);
 889       if (fp3)
 890         fclose (fp3);
 891       return FALSE;
 892     }
 893
 894   int ch;
 895   while ((ch = getc (fp1)) != EOF)
 896     (void) putc (ch, fp3);
 897   fclose (fp1);
 898
 899   while ((ch = getc (fp2)) != EOF)
 900     (void) putc (ch, fp3);
 901   fclose (fp2);
 902
 903   fclose (fp3);
 904   bool result = wxRenameFile(outfile, file3);
 905   delete[] outfile;
 906   return result;
 907 }
 908
 909 // Copy files
 910 bool
 911 wxCopyFile (const wxString& file1, const wxString& file2)
 912 {
 913   FILE *fd1;
 914   FILE *fd2;
 915   int ch;
 916
 917 #ifdef __WXMAC__
 918         wxStrcpy( gwxMacFileName , file1 ) ;
 919         wxUnix2MacFilename( gwxMacFileName ) ;
 920         wxStrcpy( gwxMacFileName2 , file2) ;
 921         wxUnix2MacFilename( gwxMacFileName2 ) ;
 922
 923   if ((fd1 = fopen (gwxMacFileName, "rb")) == NULL)
 924     return FALSE;
 925   if ((fd2 = fopen (gwxMacFileName2, "wb")) == NULL)
 926 #else
 927   if ((fd1 = fopen (FNSTRINGCAST file1.fn_str(), "rb")) == NULL)
 928     return FALSE;
 929   if ((fd2 = fopen (FNSTRINGCAST file2.fn_str(), "wb")) == NULL)
 930 #endif
 931     {
 932       fclose (fd1);
 933       return FALSE;
 934     }
 935
 936   while ((ch = getc (fd1)) != EOF)
 937     (void) putc (ch, fd2);
 938
 939   fclose (fd1);
 940   fclose (fd2);
 941   return TRUE;
 942 }
 943
 944 bool
 945 wxRenameFile (const wxString& file1, const wxString& file2)
 946 {
 947 #ifdef __WXMAC__
 948         wxStrcpy( gwxMacFileName , file1 ) ;
 949         wxUnix2MacFilename( gwxMacFileName ) ;
 950         wxStrcpy( gwxMacFileName2 , file2) ;
 951         wxUnix2MacFilename( gwxMacFileName2 ) ;
 952
 953   if (0 == rename (gwxMacFileName, gwxMacFileName2))
 954     return TRUE;
 955 #else
 956   // Normal system call
 957   if (0 == rename (FNSTRINGCAST file1.fn_str(), FNSTRINGCAST file2.fn_str()))
 958     return TRUE;
 959 #endif
 960   // Try to copy
 961   if (wxCopyFile(file1, file2)) {
 962     wxRemoveFile(file1);
 963     return TRUE;
 964   }
 965   // Give up
 966   return FALSE;
 967 }
 968
 969 bool wxRemoveFile(const wxString& file)
 970 {
 971 #if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__WATCOMC__)
 972   int flag = remove(FNSTRINGCAST file.fn_str());
 973 #elif defined( __WXMAC__ )
 974         wxStrcpy( gwxMacFileName , file ) ;
 975         wxUnix2MacFilename( gwxMacFileName ) ;
 976   int flag = unlink(gwxMacFileName);
 977 #else
 978   int flag = unlink(FNSTRINGCAST file.fn_str());
 979 #endif
 980   return (flag == 0) ;
 981 }
 982
 983 bool wxMkdir(const wxString& dir, int perm)
 984 {
 985 #if defined( __WXMAC__ )
 986     wxStrcpy( gwxMacFileName , dir ) ;
 987     wxUnix2MacFilename( gwxMacFileName ) ;
 988     const wxChar *dirname = gwxMacFileName;
 989 #else // !Mac
 990     const wxChar *dirname = dir.c_str();
 991 #endif // Mac/!Mac
 992
 993     // assume mkdir() has 2 args on non Windows platforms and on Windows too
 994     // for the GNU compiler
 995 #if !defined(__WXMSW__) || (defined(__GNUWIN32__) && !defined(__MINGW32__))
 996     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
 997 #else  // MSW
 998     if ( mkdir(wxFNCONV(dirname)) != 0 )
 999 #endif // !MSW/MSW
1000     {
1001         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1002
1003         return FALSE;
1004     }
1005
1006     return TRUE;
1007 }
1008
1009 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1010 {
1011 #ifdef __VMS__
1012   return FALSE;
1013 #elif defined( __WXMAC__ )
1014         wxStrcpy( gwxMacFileName , dir ) ;
1015         wxUnix2MacFilename( gwxMacFileName ) ;
1016   return (rmdir(WXSTRINGCAST gwxMacFileName) == 0);
1017 #else
1018
1019 #ifdef __SALFORDC__
1020   return FALSE; // What to do?
1021 #else
1022   return (rmdir(FNSTRINGCAST dir.fn_str()) == 0);
1023 #endif
1024
1025 #endif
1026 }
1027
1028 #if 0
1029 bool wxDirExists(const wxString& dir)
1030 {
1031 #ifdef __VMS__
1032   return FALSE;
1033 #elif !defined(__WXMSW__)
1034   struct stat sbuf;
1035   return (stat(dir.fn_str(), &sbuf) != -1) && S_ISDIR(sbuf.st_mode) ? TRUE : FALSE;
1036 #else
1037
1038   /* MATTHEW: [6] Always use same code for Win32, call FindClose */
1039 #if defined(__WIN32__)
1040   WIN32_FIND_DATA fileInfo;
1041 #else
1042 #ifdef __BORLANDC__
1043   struct ffblk fileInfo;
1044 #else
1045   struct find_t fileInfo;
1046 #endif
1047 #endif
1048
1049 #if defined(__WIN32__)
1050         HANDLE h = FindFirstFile((LPTSTR) WXSTRINGCAST dir,(LPWIN32_FIND_DATA)&fileInfo);
1051
1052         if (h==INVALID_HANDLE_VALUE)
1053          return FALSE;
1054         else {
1055          FindClose(h);
1056          return ((fileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY);
1057         }
1058 #else
1059   // In Borland findfirst has a different argument
1060   // ordering from _dos_findfirst. But _dos_findfirst
1061   // _should_ be ok in both MS and Borland... why not?
1062 #ifdef __BORLANDC__
1063   return ((findfirst(WXSTRINGCAST dir, &fileInfo, _A_SUBDIR) == 0  && (fileInfo.ff_attrib & _A_SUBDIR) != 0));
1064 #else
1065   return (((_dos_findfirst(WXSTRINGCAST dir, _A_SUBDIR, &fileInfo) == 0) && (fileInfo.attrib & _A_SUBDIR)) != 0);
1066 #endif
1067 #endif
1068
1069 #endif
1070 }
1071
1072 #endif
1073
1074 // does the path exists? (may have or not '/' or '\\' at the end)
1075 bool wxPathExists(const wxChar *pszPathName)
1076 {
1077   // Windows API returns -1 from stat for "c:\dir\" if "c:\dir" exists
1078   // OTOH, we should change "d:" to "d:\" and leave "\" as is.
1079   wxString strPath(pszPathName);
1080   if ( wxEndsWithPathSeparator(pszPathName) && pszPathName[1] != _T('\0') )
1081     strPath.Last() = _T('\0');
1082
1083 #ifdef __SALFORDC__
1084   struct _stat st;
1085 #else
1086   struct stat st;
1087 #endif
1088
1089   return stat(FNSTRINGCAST strPath.fn_str(), &st) == 0 && (st.st_mode & S_IFDIR);
1090 }
1091
1092 // Get a temporary filename, opening and closing the file.
1093 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1094 {
1095 #ifdef __WINDOWS__
1096
1097 #ifndef        __WIN32__
1098   wxChar tmp[144];
1099   ::GetTempFileName(0, WXSTRINGCAST prefix, 0, tmp);
1100 #else
1101   wxChar tmp[MAX_PATH];
1102   wxChar tmpPath[MAX_PATH];
1103   ::GetTempPath(MAX_PATH, tmpPath);
1104   ::GetTempFileName(tmpPath, WXSTRINGCAST prefix, 0, tmp);
1105 #endif
1106   if (buf) wxStrcpy(buf, tmp);
1107   else buf = copystring(tmp);
1108   return buf;
1109
1110 #else
1111   static short last_temp = 0;        // cache last to speed things a bit
1112   // At most 1000 temp files to a process! We use a ring count.
1113   wxChar tmp[100]; // FIXME static buffer
1114
1115   for (short suffix = last_temp + 1; suffix != last_temp; ++suffix %= 1000)
1116     {
1117       wxSprintf (tmp, _T("/tmp/%s%d.%03x"), WXSTRINGCAST prefix, (int) getpid (), (int) suffix);
1118       if (!wxFileExists( tmp ))
1119         {
1120           // Touch the file to create it (reserve name)
1121           FILE *fd = fopen (wxFNCONV(tmp), "w");
1122           if (fd)
1123             fclose (fd);
1124           last_temp = suffix;
1125           if (buf)
1126             wxStrcpy( buf, tmp);
1127           else
1128             buf = copystring( tmp );
1129           return buf;
1130         }
1131     }
1132   wxLogError( _("wxWindows: error finding temporary file name.\n") );
1133   if (buf) buf[0] = 0;
1134   return (wxChar *) NULL;
1135 #endif
1136 }
1137
1138 // Get first file name matching given wild card.
1139
1140 #ifdef __UNIX__
1141
1142 // Get first file name matching given wild card.
1143 // Flags are reserved for future use.
1144
1145 #ifndef __VMS__
1146     static DIR *gs_dirStream = (DIR *) NULL;
1147     static wxString gs_strFileSpec;
1148     static int gs_findFlags = 0;
1149 #endif
1150
1151 wxString wxFindFirstFile(const wxChar *spec, int flags)
1152 {
1153     wxString result;
1154
1155 #ifndef __VMS__
1156     if (gs_dirStream)
1157         closedir(gs_dirStream); // edz 941103: better housekeping
1158
1159     gs_findFlags = flags;
1160
1161     gs_strFileSpec = spec;
1162
1163     // Find path only so we can concatenate
1164     // found file onto path
1165     wxString path(wxPathOnly(gs_strFileSpec));
1166
1167     // special case: path is really "/"
1168     if ( !path && gs_strFileSpec[0u] == _T('/') )
1169         path = _T('/');
1170     // path is empty => Local directory
1171     if ( !path )
1172         path = _T('.');
1173
1174     gs_dirStream = opendir(path.fn_str());
1175     if ( !gs_dirStream )
1176     {
1177         wxLogSysError(_("Can not enumerate files in directory '%s'"),
1178                       path.c_str());
1179     }
1180     else
1181     {
1182         result = wxFindNextFile();
1183     }
1184 #endif // !VMS
1185
1186     return result;
1187 }
1188
1189 wxString wxFindNextFile()
1190 {
1191     wxString result;
1192
1193 #ifndef __VMS__
1194     wxCHECK_MSG( gs_dirStream, result, _T("must call wxFindFirstFile first") );
1195
1196     // Find path only so we can concatenate
1197     // found file onto path
1198     wxString path(wxPathOnly(gs_strFileSpec));
1199     wxString name(wxFileNameFromPath(gs_strFileSpec));
1200
1201     /* MATTHEW: special case: path is really "/" */
1202     if ( !path && gs_strFileSpec[0u] == _T('/'))
1203         path = _T('/');
1204
1205     // Do the reading
1206     struct dirent *nextDir;
1207     for ( nextDir = readdir(gs_dirStream);
1208           nextDir != NULL;
1209           nextDir = readdir(gs_dirStream) )
1210     {
1211         if (wxMatchWild(name, nextDir->d_name))
1212         {
1213             result.Empty();
1214             if ( !path.IsEmpty() )
1215             {
1216                 result = path;
1217                 if ( path != _T('/') )
1218                     result += _T('/');
1219             }
1220
1221             result += nextDir->d_name;
1222
1223             // Only return "." and ".." when they match
1224             bool isdir;
1225             if ( (strcmp(nextDir->d_name, ".") == 0) ||
1226                  (strcmp(nextDir->d_name, "..") == 0))
1227             {
1228                 if ( (gs_findFlags & wxDIR) != 0 )
1229                     isdir = TRUE;
1230                 else
1231                     continue;
1232             }
1233             else
1234                 isdir = wxDirExists(result);
1235
1236             // and only return directories when flags & wxDIR
1237             if ( !gs_findFlags ||
1238                  ((gs_findFlags & wxDIR) && isdir) ||
1239                  ((gs_findFlags & wxFILE) && !isdir) )
1240             {
1241                 return result;
1242             }
1243         }
1244     }
1245
1246     result.Empty(); // not found
1247
1248     closedir(gs_dirStream);
1249     gs_dirStream = (DIR *) NULL;
1250 #endif // !VMS
1251
1252     return result;
1253 }
1254
1255 #elif defined(__WXMSW__)
1256
1257 #ifdef __WIN32__
1258     static HANDLE gs_hFileStruct = INVALID_HANDLE_VALUE;
1259     static WIN32_FIND_DATA gs_findDataStruct;
1260 #else // Win16
1261     #ifdef __BORLANDC__
1262         static struct ffblk gs_findDataStruct;
1263     #else
1264         static struct _find_t gs_findDataStruct;
1265     #endif // Borland
1266 #endif // Win32/16
1267
1268 static wxString gs_strFileSpec;
1269 static int gs_findFlags = 0;
1270
1271 wxString wxFindFirstFile(const wxChar *spec, int flags)
1272 {
1273     wxString result;
1274
1275     gs_strFileSpec = spec;
1276     gs_findFlags = flags; /* MATTHEW: [5] Remember flags */
1277
1278     // Find path only so we can concatenate found file onto path
1279     wxString path(wxPathOnly(gs_strFileSpec));
1280     if ( !path.IsEmpty() )
1281         result << path << _T('\\');
1282
1283 #ifdef __WIN32__
1284     if ( gs_hFileStruct != INVALID_HANDLE_VALUE )
1285         FindClose(gs_hFileStruct);
1286
1287     gs_hFileStruct = ::FindFirstFile(WXSTRINGCAST spec, &gs_findDataStruct);
1288
1289     if ( gs_hFileStruct == INVALID_HANDLE_VALUE )
1290     {
1291         result.Empty();
1292
1293         return result;
1294     }
1295
1296     bool isdir = !!(gs_findDataStruct.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
1297
1298     if (isdir && !(flags & wxDIR))
1299         return wxFindNextFile();
1300     else if (!isdir && flags && !(flags & wxFILE))
1301         return wxFindNextFile();
1302
1303     result += gs_findDataStruct.cFileName;
1304
1305     return result;
1306 #else
1307     int flag = _A_NORMAL;
1308     if (flags & wxDIR) /* MATTHEW: [5] Use & */
1309         flag = _A_SUBDIR;
1310
1311 #ifdef __BORLANDC__
1312     if (findfirst(WXSTRINGCAST spec, &gs_findDataStruct, flag) == 0)
1313 #else
1314         if (_dos_findfirst(WXSTRINGCAST spec, flag, &gs_findDataStruct) == 0)
1315 #endif
1316         {
1317             /* MATTHEW: [5] Check directory flag */
1318             char attrib;
1319
1320 #ifdef __BORLANDC__
1321             attrib = gs_findDataStruct.ff_attrib;
1322 #else
1323             attrib = gs_findDataStruct.attrib;
1324 #endif
1325
1326             if (attrib & _A_SUBDIR) {
1327                 if (!(gs_findFlags & wxDIR))
1328                     return wxFindNextFile();
1329             } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1330                 return wxFindNextFile();
1331
1332             result +=
1333 #ifdef __BORLANDC__
1334                     gs_findDataStruct.ff_name
1335 #else
1336                     gs_findDataStruct.name
1337 #endif
1338                     ;
1339         }
1340 #endif // __WIN32__
1341
1342     return result;
1343 }
1344
1345 wxString wxFindNextFile()
1346 {
1347     wxString result;
1348
1349     // Find path only so we can concatenate found file onto path
1350     wxString path(wxPathOnly(gs_strFileSpec));
1351
1352 try_again:
1353
1354 #ifdef __WIN32__
1355     if (gs_hFileStruct == INVALID_HANDLE_VALUE)
1356         return result;
1357
1358     bool success = (FindNextFile(gs_hFileStruct, &gs_findDataStruct) != 0);
1359     if (!success)
1360     {
1361         FindClose(gs_hFileStruct);
1362         gs_hFileStruct = INVALID_HANDLE_VALUE;
1363     }
1364     else
1365     {
1366         bool isdir = !!(gs_findDataStruct.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
1367
1368         if (isdir && !(gs_findFlags & wxDIR))
1369             goto try_again;
1370         else if (!isdir && gs_findFlags && !(gs_findFlags & wxFILE))
1371             goto try_again;
1372
1373         if ( !path.IsEmpty() )
1374             result << path << _T('\\');
1375         result << gs_findDataStruct.cFileName;
1376     }
1377
1378     return result;
1379 #else // Win16
1380
1381 #ifdef __BORLANDC__
1382     if (findnext(&gs_findDataStruct) == 0)
1383 #else
1384         if (_dos_findnext(&gs_findDataStruct) == 0)
1385 #endif
1386         {
1387             /* MATTHEW: [5] Check directory flag */
1388             char attrib;
1389
1390 #ifdef __BORLANDC__
1391             attrib = gs_findDataStruct.ff_attrib;
1392 #else
1393             attrib = gs_findDataStruct.attrib;
1394 #endif
1395
1396             if (attrib & _A_SUBDIR) {
1397                 if (!(gs_findFlags & wxDIR))
1398                     goto try_again;
1399             } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1400                 goto try_again;
1401
1402
1403             result +=
1404 #ifdef __BORLANDC__
1405                       gs_findDataStruct.ff_name
1406 #else
1407                       gs_findDataStruct.name
1408 #endif
1409                       ;
1410         }
1411 #endif // Win32/16
1412
1413     return result;
1414 }
1415
1416 #endif // Unix/Windows
1417
1418 // Get current working directory.
1419 // If buf is NULL, allocates space using new, else
1420 // copies into buf.
1421 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1422 {
1423   if (!buf)
1424     buf = new wxChar[sz+1];
1425 #if wxUSE_UNICODE
1426   char *cbuf = new char[sz+1];
1427 #ifdef _MSC_VER
1428   if (_getcwd(cbuf, sz) == NULL) {
1429 #else
1430   if (getcwd(cbuf, sz) == NULL) {
1431 #endif
1432     delete [] cbuf;
1433 #else
1434 #ifdef _MSC_VER
1435   if (_getcwd(buf, sz) == NULL) {
1436 #else
1437   if (getcwd(buf, sz) == NULL) {
1438 #endif
1439 #endif
1440     buf[0] = _T('.');
1441     buf[1] = _T('\0');
1442   }
1443 #if wxUSE_UNICODE
1444   else {
1445     wxConv_file.MB2WC(buf, cbuf, sz);
1446     delete [] cbuf;
1447   }
1448 #endif
1449   return buf;
1450 }
1451
1452 wxString wxGetCwd()
1453 {
1454     static const size_t maxPathLen = 1024;
1455
1456     wxString str;
1457     wxGetWorkingDirectory(str.GetWriteBuf(maxPathLen), maxPathLen);
1458     str.UngetWriteBuf();
1459
1460     return str;
1461 }
1462
1463 bool wxSetWorkingDirectory(const wxString& d)
1464 {
1465 #if defined( __UNIX__ ) || defined( __WXMAC__ )
1466   return (chdir(d.fn_str()) == 0);
1467 #elif defined(__WINDOWS__)
1468
1469 #ifdef __WIN32__
1470   return (bool)(SetCurrentDirectory(d) != 0);
1471 #else
1472   // Must change drive, too.
1473   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1474   if (isDriveSpec)
1475   {
1476     wxChar firstChar = d[0];
1477
1478     // To upper case
1479     if (firstChar > 90)
1480       firstChar = firstChar - 32;
1481
1482     // To a drive number
1483     unsigned int driveNo = firstChar - 64;
1484     if (driveNo > 0)
1485     {
1486        unsigned int noDrives;
1487        _dos_setdrive(driveNo, &noDrives);
1488     }
1489   }
1490   bool success = (chdir(WXSTRINGCAST d) == 0);
1491
1492   return success;
1493 #endif
1494
1495 #endif
1496 }
1497
1498 // Get the OS directory if appropriate (such as the Windows directory).
1499 // On non-Windows platform, probably just return the empty string.
1500 wxString wxGetOSDirectory()
1501 {
1502 #ifdef __WINDOWS__
1503     wxChar buf[256];
1504     GetWindowsDirectory(buf, 256);
1505     return wxString(buf);
1506 #else
1507     return wxEmptyString;
1508 #endif
1509 }
1510
1511 bool wxEndsWithPathSeparator(const char *pszFileName)
1512 {
1513   size_t len = Strlen(pszFileName);
1514   if ( len == 0 )
1515     return FALSE;
1516   else
1517     return wxIsPathSeparator(pszFileName[len - 1]);
1518 }
1519
1520 // find a file in a list of directories, returns false if not found
1521 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1522 {
1523   // we assume that it's not empty
1524   wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1525                _("empty file name in wxFindFileInPath"));
1526
1527   // skip path separator in the beginning of the file name if present
1528   if ( wxIsPathSeparator(*pszFile) )
1529     pszFile++;
1530
1531   // copy the path (strtok will modify it)
1532   wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1533   wxStrcpy(szPath, pszPath);
1534
1535   wxString strFile;
1536   wxChar *pc, *save_ptr;
1537   for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1538         pc != NULL;
1539         pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1540   {
1541     // search for the file in this directory
1542     strFile = pc;
1543     if ( !wxEndsWithPathSeparator(pc) )
1544       strFile += wxFILE_SEP_PATH;
1545     strFile += pszFile;
1546
1547     if ( FileExists(strFile) ) {
1548       *pStr = strFile;
1549       break;
1550     }
1551   }
1552
1553   delete [] szPath;
1554
1555   return pc != NULL;  // if true => we breaked from the loop
1556 }
1557
1558 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1559                              wxString *pstrPath,
1560                              wxString *pstrName,
1561                              wxString *pstrExt)
1562 {
1563     // it can be empty, but it shouldn't be NULL
1564     wxCHECK_RET( pszFileName, _T("NULL file name in wxSplitPath") );
1565
1566     const wxChar *pDot = wxStrrchr(pszFileName, wxFILE_SEP_EXT);
1567
1568 #ifdef __WXMSW__
1569     // under Windows we understand both separators
1570     const wxChar *pSepUnix = wxStrrchr(pszFileName, wxFILE_SEP_PATH_UNIX);
1571     const wxChar *pSepDos = wxStrrchr(pszFileName, wxFILE_SEP_PATH_DOS);
1572     const wxChar *pLastSeparator = pSepUnix > pSepDos ? pSepUnix : pSepDos;
1573 #else // assume Unix
1574     const wxChar *pLastSeparator = wxStrrchr(pszFileName, wxFILE_SEP_PATH_UNIX);
1575
1576     if ( pDot == pszFileName )
1577     {
1578         // under Unix files like .profile are treated in a special way
1579         pDot = NULL;
1580     }
1581 #endif // MSW/Unix
1582
1583     if ( pDot < pLastSeparator )
1584     {
1585         // the dot is part of the path, not the start of the extension
1586         pDot = NULL;
1587     }
1588
1589     if ( pstrPath )
1590     {
1591         if ( pLastSeparator )
1592             *pstrPath = wxString(pszFileName, pLastSeparator - pszFileName);
1593         else
1594             pstrPath->Empty();
1595     }
1596
1597     if ( pstrName )
1598     {
1599         const wxChar *start = pLastSeparator ? pLastSeparator + 1 : pszFileName;
1600         const wxChar *end = pDot ? pDot : pszFileName + wxStrlen(pszFileName);
1601
1602         *pstrName = wxString(start, end - start);
1603     }
1604
1605     if ( pstrExt )
1606     {
1607         if ( pDot )
1608             *pstrExt = wxString(pDot + 1);
1609         else
1610             pstrExt->Empty();
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 _T('?'): case _T('*'): case _T('['): case _T('{'):
1625             return TRUE;
1626         case _T('\\'):
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 = _T('{'), CB = _T('}');
1661
1662     // dot_special means '.' only matches '.'
1663     if (dot_special && *str == _T('.') && *pattern != *str)
1664         return FALSE;
1665
1666     while ((*pattern != _T('\0')) && (!done)
1667     && (((*str==_T('\0'))&&((*pattern==OB)||(*pattern==_T('*'))))||(*str!=_T('\0')))) {
1668         switch (*pattern) {
1669         case _T('\\'):
1670             pattern++;
1671             if (*pattern != _T('\0'))
1672                 pattern++;
1673             break;
1674         case _T('*'):
1675             pattern++;
1676             ret_code = FALSE;
1677             while ((*str!=_T('\0'))
1678             && (!(ret_code=wxMatchWild(pattern, str++, FALSE))))
1679                 /*loop*/;
1680             if (ret_code) {
1681                 while (*str != _T('\0'))
1682                     str++;
1683                 while (*pattern != _T('\0'))
1684                     pattern++;
1685             }
1686             break;
1687         case _T('['):
1688             pattern++;
1689           repeat:
1690             if ((*pattern == _T('\0')) || (*pattern == _T(']'))) {
1691                 done = TRUE;
1692                 break;
1693             }
1694             if (*pattern == _T('\\')) {
1695                 pattern++;
1696                 if (*pattern == _T('\0')) {
1697                     done = TRUE;
1698                     break;
1699                 }
1700             }
1701             if (*(pattern + 1) == _T('-')) {
1702                 c = *pattern;
1703                 pattern += 2;
1704                 if (*pattern == _T(']')) {
1705                     done = TRUE;
1706                     break;
1707                 }
1708                 if (*pattern == _T('\\')) {
1709                     pattern++;
1710                     if (*pattern == _T('\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 != _T(']')) && (*pattern != _T('\0'))) {
1725                 if ((*pattern == _T('\\')) && (*(pattern + 1) != _T('\0')))
1726                     pattern++;
1727                 pattern++;
1728             }
1729             if (*pattern != _T('\0')) {
1730                 pattern++, str++;
1731             }
1732             break;
1733         case _T('?'):
1734             pattern++;
1735             str++;
1736             break;
1737         case OB:
1738             pattern++;
1739             while ((*pattern != CB) && (*pattern != _T('\0'))) {
1740                 cp = str;
1741                 ok = TRUE;
1742                 while (ok && (*cp != _T('\0')) && (*pattern != _T('\0'))
1743                 &&  (*pattern != _T(',')) && (*pattern != CB)) {
1744                     if (*pattern == _T('\\'))
1745                         pattern++;
1746                     ok = (*pattern++ == *cp++);
1747                 }
1748                 if (*pattern == _T('\0')) {
1749                     ok = FALSE;
1750                     done = TRUE;
1751                     break;
1752                 } else if (ok) {
1753                     str = cp;
1754                     while ((*pattern != CB) && (*pattern != _T('\0'))) {
1755                         if (*++pattern == _T('\\')) {
1756                             if (*++pattern == CB)
1757                                 pattern++;
1758                         }
1759                     }
1760                 } else {
1761                     while (*pattern!=CB && *pattern!=_T(',') && *pattern!=_T('\0')) {
1762                         if (*++pattern == _T('\\')) {
1763                             if (*++pattern == CB || *pattern == _T(','))
1764                                 pattern++;
1765                         }
1766                     }
1767                 }
1768                 if (*pattern != _T('\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 == _T('*'))
1781         pattern++;
1782     return ((*str == _T('\0')) && (*pattern == _T('\0')));
1783 };
1784
1785 #endif
1786
1787 #ifdef __VISUALC__
1788     #pragma warning(default:4706)   // assignment within conditional expression
1789 #endif // VC++