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 != _T(""))
 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             // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 518             if ((s = WXSTRINGCAST wxGetUserHome(_T(""))) != NULL) {
 519                 if (*++nm)
 520                     nm++;
 521             }
 522         } else
 523         {                /* ~user/filename */
 524             register wxChar  *nnm;
 525             register wxChar  *home;
 526             for (s = nm; *s && *s != SEP; s++);
 527             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 528             was_sep = (*s == SEP);
 529             nnm = *s ? s + 1 : s;
 530             *s = 0;
 531             // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 532             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 533                if (was_sep) /* replace only if it was there: */
 534                    *s = SEP;
 535                 s = _T("");
 536             } else {
 537                 nm = nnm;
 538                 s = home;
 539             }
 540         }
 541     }
 542
 543     d = buf;
 544     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 545         /* Copy home dir */
 546         while (_T('\0') != (*d++ = *s++))
 547           /* loop */;
 548         // Handle root home
 549         if (d - 1 > buf && *(d - 2) != SEP)
 550           *(d - 1) = SEP;
 551     }
 552     s = nm;
 553     while ((*d++ = *s++));
 554
 555     delete[] nm_tmp; // clean up alloc
 556     /* Now clean up the buffer */
 557     return wxRealPath(buf);
 558 }
 559
 560
 561 /* Contract Paths to be build upon an environment variable
 562    component:
 563
 564    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 565
 566    The call wxExpandPath can convert these back!
 567  */
 568 wxChar *
 569 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 570 {
 571   static wxChar dest[_MAXPATHLEN];
 572
 573   if (filename == _T(""))
 574     return (wxChar *) NULL;
 575
 576   wxStrcpy (dest, WXSTRINGCAST filename);
 577 #ifdef __WXMSW__
 578   Unix2DosFilename(dest);
 579 #endif
 580
 581   // Handle environment
 582   const wxChar *val = (const wxChar *) NULL;
 583   wxChar *tcp = (wxChar *) NULL;
 584   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 585      (tcp = wxStrstr (dest, val)) != NULL)
 586     {
 587         wxStrcpy (wxBuffer, tcp + wxStrlen (val));
 588         *tcp++ = _T('$');
 589         *tcp++ = _T('{');
 590         wxStrcpy (tcp, WXSTRINGCAST envname);
 591         wxStrcat (tcp, _T("}"));
 592         wxStrcat (tcp, wxBuffer);
 593     }
 594
 595   // Handle User's home (ignore root homes!)
 596   size_t len = 0;
 597   if ((val = wxGetUserHome (user)) != NULL &&
 598       (len = wxStrlen(val)) > 2 &&
 599       wxStrncmp(dest, val, len) == 0)
 600     {
 601       wxStrcpy(wxBuffer, _T("~"));
 602       if (user != _T(""))
 603              wxStrcat(wxBuffer, (const wxChar*) user);
 604 #ifdef __WXMSW__
 605 //      strcat(wxBuffer, "\\");
 606 #else
 607 //      strcat(wxBuffer, "/");
 608 #endif
 609       wxStrcat(wxBuffer, dest + len);
 610       wxStrcpy (dest, wxBuffer);
 611     }
 612
 613   return dest;
 614 }
 615
 616 // Return just the filename, not the path
 617 // (basename)
 618 wxChar *wxFileNameFromPath (wxChar *path)
 619 {
 620   if (path)
 621     {
 622       register wxChar *tcp;
 623
 624       tcp = path + wxStrlen (path);
 625       while (--tcp >= path)
 626         {
 627           if (*tcp == _T('/') || *tcp == _T('\\')
 628 #ifdef __VMS__
 629      || *tcp == _T(':') || *tcp == _T(']'))
 630 #else
 631      )
 632 #endif
 633             return tcp + 1;
 634         }                        /* while */
 635 #ifdef __WXMSW__
 636       if (wxIsalpha (*path) && *(path + 1) == _T(':'))
 637         return path + 2;
 638 #endif
 639     }
 640   return path;
 641 }
 642
 643 wxString wxFileNameFromPath (const wxString& path1)
 644 {
 645   if (path1 != _T(""))
 646   {
 647
 648       wxChar *path = WXSTRINGCAST path1 ;
 649       register wxChar *tcp;
 650
 651       tcp = path + wxStrlen (path);
 652       while (--tcp >= path)
 653           {
 654             if (*tcp == _T('/') || *tcp == _T('\\')
 655 #ifdef __VMS__
 656         || *tcp == _T(':') || *tcp == _T(']'))
 657 #else
 658         )
 659 #endif
 660                 return wxString(tcp + 1);
 661             }                        /* while */
 662 #ifdef __WXMSW__
 663       if (wxIsalpha (*path) && *(path + 1) == _T(':'))
 664             return wxString(path + 2);
 665 #endif
 666     }
 667   // Yes, this should return the path, not an empty string, otherwise
 668   // we get "thing.txt" -> "".
 669   return path1;
 670 }
 671
 672 // Return just the directory, or NULL if no directory
 673 wxChar *
 674 wxPathOnly (wxChar *path)
 675 {
 676   if (path && *path)
 677     {
 678       static wxChar buf[_MAXPATHLEN];
 679
 680       // Local copy
 681       wxStrcpy (buf, path);
 682
 683       int l = wxStrlen(path);
 684       bool done = FALSE;
 685
 686       int i = l - 1;
 687
 688       // Search backward for a backward or forward slash
 689       while (!done && i > -1)
 690       {
 691         // ] is for VMS
 692         if (path[i] == _T('/') || path[i] == _T('\\') || path[i] == _T(']'))
 693         {
 694           done = TRUE;
 695 #ifdef __VMS__
 696           buf[i+1] = 0;
 697 #else
 698           buf[i] = 0;
 699 #endif
 700
 701           return buf;
 702         }
 703         else i --;
 704       }
 705
 706 #ifdef __WXMSW__
 707       // Try Drive specifier
 708       if (wxIsalpha (buf[0]) && buf[1] == _T(':'))
 709         {
 710           // A:junk --> A:. (since A:.\junk Not A:\junk)
 711           buf[2] = _T('.');
 712           buf[3] = _T('\0');
 713           return buf;
 714         }
 715 #endif
 716     }
 717
 718   return (wxChar *) NULL;
 719 }
 720
 721 // Return just the directory, or NULL if no directory
 722 wxString wxPathOnly (const wxString& path)
 723 {
 724   if (path != _T(""))
 725     {
 726       wxChar buf[_MAXPATHLEN];
 727
 728       // Local copy
 729       wxStrcpy (buf, WXSTRINGCAST path);
 730
 731       int l = path.Length();
 732       bool done = FALSE;
 733
 734       int i = l - 1;
 735
 736       // Search backward for a backward or forward slash
 737       while (!done && i > -1)
 738       {
 739         // ] is for VMS
 740         if (path[i] == _T('/') || path[i] == _T('\\') || path[i] == _T(']'))
 741         {
 742           done = TRUE;
 743 #ifdef __VMS__
 744           buf[i+1] = 0;
 745 #else
 746           buf[i] = 0;
 747 #endif
 748
 749           return wxString(buf);
 750         }
 751         else i --;
 752       }
 753
 754 #ifdef __WXMSW__
 755       // Try Drive specifier
 756       if (wxIsalpha (buf[0]) && buf[1] == _T(':'))
 757         {
 758           // A:junk --> A:. (since A:.\junk Not A:\junk)
 759           buf[2] = _T('.');
 760           buf[3] = _T('\0');
 761           return wxString(buf);
 762         }
 763 #endif
 764     }
 765
 766   return wxString(_T(""));
 767 }
 768
 769 // Utility for converting delimiters in DOS filenames to UNIX style
 770 // and back again - or we get nasty problems with delimiters.
 771 // Also, convert to lower case, since case is significant in UNIX.
 772
 773 #ifdef __WXMAC__
 774 void
 775 wxMac2UnixFilename (wxChar *s)
 776 {
 777         if (s)
 778         {
 779                 memmove( s+1 , s ,(strlen( s ) + 1)*sizeof(wxChar)) ;
 780                 if ( *s == _T(':') )
 781                         *s = _T('.') ;
 782                 else
 783                         *s = _T('/') ;
 784
 785                 while (*s)
 786                 {
 787                         if (*s == _T(':'))
 788                           *s = _T('/');
 789                         else
 790                           *s = wxTolower(*s);        // Case INDEPENDENT
 791                         s++;
 792                 }
 793         }
 794 }
 795
 796 void
 797 wxUnix2MacFilename (wxChar *s)
 798 {
 799         if (s)
 800         {
 801                 if ( *s == _T('.') )
 802                 {
 803                         // relative path , since it goes on with slash which is translated to a :
 804                         memmove( s , s+1 ,strlen( s )*sizeof(wxChar) ) ;
 805                 }
 806                 else if ( *s == _T('/') )
 807                 {
 808                         // absolute path -> on mac just start with the drive name
 809                         memmove( s , s+1 ,strlen( s )*sizeof(wxChar) ) ;
 810                 }
 811                 else
 812                 {
 813                         wxASSERT_MSG( 1 , _T("unknown path beginning") ) ;
 814                 }
 815                 while (*s)
 816                 {
 817                         if (*s == _T('/') || *s == _T('\\'))
 818                                   *s = _T(':');
 819
 820                         s++ ;
 821                 }
 822         }
 823 }
 824 #endif
 825 void
 826 wxDos2UnixFilename (wxChar *s)
 827 {
 828   if (s)
 829     while (*s)
 830       {
 831         if (*s == _T('\\'))
 832           *s = _T('/');
 833 #ifdef __WXMSW__
 834         else
 835           *s = wxTolower(*s);        // Case INDEPENDENT
 836 #endif
 837         s++;
 838       }
 839 }
 840
 841 void
 842 #ifdef __WXMSW__
 843 wxUnix2DosFilename (wxChar *s)
 844 #else
 845 wxUnix2DosFilename (wxChar *WXUNUSED(s))
 846 #endif
 847 {
 848 // Yes, I really mean this to happen under DOS only! JACS
 849 #ifdef __WXMSW__
 850   if (s)
 851     while (*s)
 852       {
 853         if (*s == _T('/'))
 854           *s = _T('\\');
 855         s++;
 856       }
 857 #endif
 858 }
 859
 860 // Concatenate two files to form third
 861 bool
 862 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 863 {
 864   wxChar *outfile = wxGetTempFileName("cat");
 865
 866   FILE *fp1 = (FILE *) NULL;
 867   FILE *fp2 = (FILE *) NULL;
 868   FILE *fp3 = (FILE *) NULL;
 869   // Open the inputs and outputs
 870 #ifdef __WXMAC__
 871         wxStrcpy( gwxMacFileName , file1 ) ;
 872         wxUnix2MacFilename( gwxMacFileName ) ;
 873         wxStrcpy( gwxMacFileName2 , file2) ;
 874         wxUnix2MacFilename( gwxMacFileName2 ) ;
 875         wxStrcpy( gwxMacFileName3 , outfile) ;
 876         wxUnix2MacFilename( gwxMacFileName3 ) ;
 877
 878   if ((fp1 = fopen (gwxMacFileName, "rb")) == NULL ||
 879       (fp2 = fopen (gwxMacFileName2, "rb")) == NULL ||
 880       (fp3 = fopen (gwxMacFileName3, "wb")) == NULL)
 881 #else
 882   if ((fp1 = fopen (FNSTRINGCAST file1.fn_str(), "rb")) == NULL ||
 883       (fp2 = fopen (FNSTRINGCAST file2.fn_str(), "rb")) == NULL ||
 884       (fp3 = fopen (wxFNCONV(outfile), "wb")) == NULL)
 885 #endif
 886     {
 887       if (fp1)
 888         fclose (fp1);
 889       if (fp2)
 890         fclose (fp2);
 891       if (fp3)
 892         fclose (fp3);
 893       return FALSE;
 894     }
 895
 896   int ch;
 897   while ((ch = getc (fp1)) != EOF)
 898     (void) putc (ch, fp3);
 899   fclose (fp1);
 900
 901   while ((ch = getc (fp2)) != EOF)
 902     (void) putc (ch, fp3);
 903   fclose (fp2);
 904
 905   fclose (fp3);
 906   bool result = wxRenameFile(outfile, file3);
 907   delete[] outfile;
 908   return result;
 909 }
 910
 911 // Copy files
 912 bool
 913 wxCopyFile (const wxString& file1, const wxString& file2)
 914 {
 915   FILE *fd1;
 916   FILE *fd2;
 917   int ch;
 918
 919 #ifdef __WXMAC__
 920         wxStrcpy( gwxMacFileName , file1 ) ;
 921         wxUnix2MacFilename( gwxMacFileName ) ;
 922         wxStrcpy( gwxMacFileName2 , file2) ;
 923         wxUnix2MacFilename( gwxMacFileName2 ) ;
 924
 925   if ((fd1 = fopen (gwxMacFileName, "rb")) == NULL)
 926     return FALSE;
 927   if ((fd2 = fopen (gwxMacFileName2, "wb")) == NULL)
 928 #else
 929   if ((fd1 = fopen (FNSTRINGCAST file1.fn_str(), "rb")) == NULL)
 930     return FALSE;
 931   if ((fd2 = fopen (FNSTRINGCAST file2.fn_str(), "wb")) == NULL)
 932 #endif
 933     {
 934       fclose (fd1);
 935       return FALSE;
 936     }
 937
 938   while ((ch = getc (fd1)) != EOF)
 939     (void) putc (ch, fd2);
 940
 941   fclose (fd1);
 942   fclose (fd2);
 943   return TRUE;
 944 }
 945
 946 bool
 947 wxRenameFile (const wxString& file1, const wxString& file2)
 948 {
 949 #ifdef __WXMAC__
 950         wxStrcpy( gwxMacFileName , file1 ) ;
 951         wxUnix2MacFilename( gwxMacFileName ) ;
 952         wxStrcpy( gwxMacFileName2 , file2) ;
 953         wxUnix2MacFilename( gwxMacFileName2 ) ;
 954
 955   if (0 == rename (gwxMacFileName, gwxMacFileName2))
 956     return TRUE;
 957 #else
 958   // Normal system call
 959   if (0 == rename (FNSTRINGCAST file1.fn_str(), FNSTRINGCAST file2.fn_str()))
 960     return TRUE;
 961 #endif
 962   // Try to copy
 963   if (wxCopyFile(file1, file2)) {
 964     wxRemoveFile(file1);
 965     return TRUE;
 966   }
 967   // Give up
 968   return FALSE;
 969 }
 970
 971 bool wxRemoveFile(const wxString& file)
 972 {
 973 #if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__WATCOMC__)
 974   int flag = remove(FNSTRINGCAST file.fn_str());
 975 #elif defined( __WXMAC__ )
 976         wxStrcpy( gwxMacFileName , file ) ;
 977         wxUnix2MacFilename( gwxMacFileName ) ;
 978   int flag = unlink(gwxMacFileName);
 979 #else
 980   int flag = unlink(FNSTRINGCAST file.fn_str());
 981 #endif
 982   return (flag == 0) ;
 983 }
 984
 985 bool wxMkdir(const wxString& dir, int perm)
 986 {
 987 #if defined( __WXMAC__ )
 988     wxStrcpy( gwxMacFileName , dir ) ;
 989     wxUnix2MacFilename( gwxMacFileName ) ;
 990     const wxChar *dirname = gwxMacFileName;
 991 #else // !Mac
 992     const wxChar *dirname = dir.c_str();
 993 #endif // Mac/!Mac
 994
 995     // assume mkdir() has 2 args on non Windows platforms and on Windows too
 996     // for the GNU compiler
 997 #if !defined(__WXMSW__) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__)
 998     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
 999 #else  // MSW
1000     if ( mkdir(wxFNCONV(dirname)) != 0 )
1001 #endif // !MSW/MSW
1002     {
1003         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1004
1005         return FALSE;
1006     }
1007
1008     return TRUE;
1009 }
1010
1011 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1012 {
1013 #ifdef __VMS__
1014   return FALSE;
1015 #elif defined( __WXMAC__ )
1016         wxStrcpy( gwxMacFileName , dir ) ;
1017         wxUnix2MacFilename( gwxMacFileName ) ;
1018   return (rmdir(WXSTRINGCAST gwxMacFileName) == 0);
1019 #else
1020
1021 #ifdef __SALFORDC__
1022   return FALSE; // What to do?
1023 #else
1024   return (rmdir(FNSTRINGCAST dir.fn_str()) == 0);
1025 #endif
1026
1027 #endif
1028 }
1029
1030 #if 0
1031 bool wxDirExists(const wxString& dir)
1032 {
1033 #ifdef __VMS__
1034   return FALSE;
1035 #elif !defined(__WXMSW__)
1036   struct stat sbuf;
1037   return (stat(dir.fn_str(), &sbuf) != -1) && S_ISDIR(sbuf.st_mode) ? TRUE : FALSE;
1038 #else
1039
1040   /* MATTHEW: [6] Always use same code for Win32, call FindClose */
1041 #if defined(__WIN32__)
1042   WIN32_FIND_DATA fileInfo;
1043 #else
1044 #ifdef __BORLANDC__
1045   struct ffblk fileInfo;
1046 #else
1047   struct find_t fileInfo;
1048 #endif
1049 #endif
1050
1051 #if defined(__WIN32__)
1052         HANDLE h = FindFirstFile((LPTSTR) WXSTRINGCAST dir,(LPWIN32_FIND_DATA)&fileInfo);
1053
1054         if (h==INVALID_HANDLE_VALUE)
1055          return FALSE;
1056         else {
1057          FindClose(h);
1058          return ((fileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY);
1059         }
1060 #else
1061   // In Borland findfirst has a different argument
1062   // ordering from _dos_findfirst. But _dos_findfirst
1063   // _should_ be ok in both MS and Borland... why not?
1064 #ifdef __BORLANDC__
1065   return ((findfirst(WXSTRINGCAST dir, &fileInfo, _A_SUBDIR) == 0  && (fileInfo.ff_attrib & _A_SUBDIR) != 0));
1066 #else
1067   return (((_dos_findfirst(WXSTRINGCAST dir, _A_SUBDIR, &fileInfo) == 0) && (fileInfo.attrib & _A_SUBDIR)) != 0);
1068 #endif
1069 #endif
1070
1071 #endif
1072 }
1073
1074 #endif
1075
1076 // does the path exists? (may have or not '/' or '\\' at the end)
1077 bool wxPathExists(const wxChar *pszPathName)
1078 {
1079   // Windows API returns -1 from stat for "c:\dir\" if "c:\dir" exists
1080   // OTOH, we should change "d:" to "d:\" and leave "\" as is.
1081   wxString strPath(pszPathName);
1082   if ( wxEndsWithPathSeparator(pszPathName) && pszPathName[1] != _T('\0') )
1083     strPath.Last() = _T('\0');
1084
1085 #ifdef __SALFORDC__
1086   struct _stat st;
1087 #else
1088   struct stat st;
1089 #endif
1090
1091   return stat(FNSTRINGCAST strPath.fn_str(), &st) == 0 && (st.st_mode & S_IFDIR);
1092 }
1093
1094 // Get a temporary filename, opening and closing the file.
1095 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1096 {
1097 #ifdef __WINDOWS__
1098
1099 #ifndef        __WIN32__
1100   wxChar tmp[144];
1101   ::GetTempFileName(0, WXSTRINGCAST prefix, 0, tmp);
1102 #else
1103   wxChar tmp[MAX_PATH];
1104   wxChar tmpPath[MAX_PATH];
1105   ::GetTempPath(MAX_PATH, tmpPath);
1106   ::GetTempFileName(tmpPath, WXSTRINGCAST prefix, 0, tmp);
1107 #endif
1108   if (buf) wxStrcpy(buf, tmp);
1109   else buf = copystring(tmp);
1110   return buf;
1111
1112 #else
1113   static short last_temp = 0;        // cache last to speed things a bit
1114   // At most 1000 temp files to a process! We use a ring count.
1115   wxChar tmp[100]; // FIXME static buffer
1116
1117   for (short suffix = last_temp + 1; suffix != last_temp; ++suffix %= 1000)
1118     {
1119       wxSprintf (tmp, _T("/tmp/%s%d.%03x"), WXSTRINGCAST prefix, (int) getpid (), (int) suffix);
1120       if (!wxFileExists( tmp ))
1121         {
1122           // Touch the file to create it (reserve name)
1123           FILE *fd = fopen (wxFNCONV(tmp), "w");
1124           if (fd)
1125             fclose (fd);
1126           last_temp = suffix;
1127           if (buf)
1128             wxStrcpy( buf, tmp);
1129           else
1130             buf = copystring( tmp );
1131           return buf;
1132         }
1133     }
1134   wxLogError( _("wxWindows: error finding temporary file name.\n") );
1135   if (buf) buf[0] = 0;
1136   return (wxChar *) NULL;
1137 #endif
1138 }
1139
1140 // Get first file name matching given wild card.
1141
1142 #ifdef __UNIX__
1143
1144 // Get first file name matching given wild card.
1145 // Flags are reserved for future use.
1146
1147 #ifndef __VMS__
1148     static DIR *gs_dirStream = (DIR *) NULL;
1149     static wxString gs_strFileSpec;
1150     static int gs_findFlags = 0;
1151 #endif
1152
1153 wxString wxFindFirstFile(const wxChar *spec, int flags)
1154 {
1155     wxString result;
1156
1157 #ifndef __VMS__
1158     if (gs_dirStream)
1159         closedir(gs_dirStream); // edz 941103: better housekeping
1160
1161     gs_findFlags = flags;
1162
1163     gs_strFileSpec = spec;
1164
1165     // Find path only so we can concatenate
1166     // found file onto path
1167     wxString path(wxPathOnly(gs_strFileSpec));
1168
1169     // special case: path is really "/"
1170     if ( !path && gs_strFileSpec[0u] == _T('/') )
1171         path = _T('/');
1172     // path is empty => Local directory
1173     if ( !path )
1174         path = _T('.');
1175
1176     gs_dirStream = opendir(path.fn_str());
1177     if ( !gs_dirStream )
1178     {
1179         wxLogSysError(_("Can not enumerate files in directory '%s'"),
1180                       path.c_str());
1181     }
1182     else
1183     {
1184         result = wxFindNextFile();
1185     }
1186 #endif // !VMS
1187
1188     return result;
1189 }
1190
1191 wxString wxFindNextFile()
1192 {
1193     wxString result;
1194
1195 #ifndef __VMS__
1196     wxCHECK_MSG( gs_dirStream, result, _T("must call wxFindFirstFile first") );
1197
1198     // Find path only so we can concatenate
1199     // found file onto path
1200     wxString path(wxPathOnly(gs_strFileSpec));
1201     wxString name(wxFileNameFromPath(gs_strFileSpec));
1202
1203     /* MATTHEW: special case: path is really "/" */
1204     if ( !path && gs_strFileSpec[0u] == _T('/'))
1205         path = _T('/');
1206
1207     // Do the reading
1208     struct dirent *nextDir;
1209     for ( nextDir = readdir(gs_dirStream);
1210           nextDir != NULL;
1211           nextDir = readdir(gs_dirStream) )
1212     {
1213         if (wxMatchWild(name, nextDir->d_name))
1214         {
1215             result.Empty();
1216             if ( !path.IsEmpty() )
1217             {
1218                 result = path;
1219                 if ( path != _T('/') )
1220                     result += _T('/');
1221             }
1222
1223             result += nextDir->d_name;
1224
1225             // Only return "." and ".." when they match
1226             bool isdir;
1227             if ( (strcmp(nextDir->d_name, ".") == 0) ||
1228                  (strcmp(nextDir->d_name, "..") == 0))
1229             {
1230                 if ( (gs_findFlags & wxDIR) != 0 )
1231                     isdir = TRUE;
1232                 else
1233                     continue;
1234             }
1235             else
1236                 isdir = wxDirExists(result);
1237
1238             // and only return directories when flags & wxDIR
1239             if ( !gs_findFlags ||
1240                  ((gs_findFlags & wxDIR) && isdir) ||
1241                  ((gs_findFlags & wxFILE) && !isdir) )
1242             {
1243                 return result;
1244             }
1245         }
1246     }
1247
1248     result.Empty(); // not found
1249
1250     closedir(gs_dirStream);
1251     gs_dirStream = (DIR *) NULL;
1252 #endif // !VMS
1253
1254     return result;
1255 }
1256
1257 #elif defined(__WXMSW__)
1258
1259 #ifdef __WIN32__
1260     static HANDLE gs_hFileStruct = INVALID_HANDLE_VALUE;
1261     static WIN32_FIND_DATA gs_findDataStruct;
1262 #else // Win16
1263     #ifdef __BORLANDC__
1264         static struct ffblk gs_findDataStruct;
1265     #else
1266         static struct _find_t gs_findDataStruct;
1267     #endif // Borland
1268 #endif // Win32/16
1269
1270 static wxString gs_strFileSpec;
1271 static int gs_findFlags = 0;
1272
1273 wxString wxFindFirstFile(const wxChar *spec, int flags)
1274 {
1275     wxString result;
1276
1277     gs_strFileSpec = spec;
1278     gs_findFlags = flags; /* MATTHEW: [5] Remember flags */
1279
1280     // Find path only so we can concatenate found file onto path
1281     wxString path(wxPathOnly(gs_strFileSpec));
1282     if ( !path.IsEmpty() )
1283         result << path << _T('\\');
1284
1285 #ifdef __WIN32__
1286     if ( gs_hFileStruct != INVALID_HANDLE_VALUE )
1287         FindClose(gs_hFileStruct);
1288
1289     gs_hFileStruct = ::FindFirstFile(WXSTRINGCAST spec, &gs_findDataStruct);
1290
1291     if ( gs_hFileStruct == INVALID_HANDLE_VALUE )
1292     {
1293         result.Empty();
1294
1295         return result;
1296     }
1297
1298     bool isdir = !!(gs_findDataStruct.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
1299
1300     if (isdir && !(flags & wxDIR))
1301         return wxFindNextFile();
1302     else if (!isdir && flags && !(flags & wxFILE))
1303         return wxFindNextFile();
1304
1305     result += gs_findDataStruct.cFileName;
1306
1307     return result;
1308 #else
1309     int flag = _A_NORMAL;
1310     if (flags & wxDIR) /* MATTHEW: [5] Use & */
1311         flag = _A_SUBDIR;
1312
1313 #ifdef __BORLANDC__
1314     if (findfirst(WXSTRINGCAST spec, &gs_findDataStruct, flag) == 0)
1315 #else
1316         if (_dos_findfirst(WXSTRINGCAST spec, flag, &gs_findDataStruct) == 0)
1317 #endif
1318         {
1319             /* MATTHEW: [5] Check directory flag */
1320             char attrib;
1321
1322 #ifdef __BORLANDC__
1323             attrib = gs_findDataStruct.ff_attrib;
1324 #else
1325             attrib = gs_findDataStruct.attrib;
1326 #endif
1327
1328             if (attrib & _A_SUBDIR) {
1329                 if (!(gs_findFlags & wxDIR))
1330                     return wxFindNextFile();
1331             } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1332                 return wxFindNextFile();
1333
1334             result +=
1335 #ifdef __BORLANDC__
1336                     gs_findDataStruct.ff_name
1337 #else
1338                     gs_findDataStruct.name
1339 #endif
1340                     ;
1341         }
1342 #endif // __WIN32__
1343
1344     return result;
1345 }
1346
1347 wxString wxFindNextFile()
1348 {
1349     wxString result;
1350
1351     // Find path only so we can concatenate found file onto path
1352     wxString path(wxPathOnly(gs_strFileSpec));
1353
1354 try_again:
1355
1356 #ifdef __WIN32__
1357     if (gs_hFileStruct == INVALID_HANDLE_VALUE)
1358         return result;
1359
1360     bool success = (FindNextFile(gs_hFileStruct, &gs_findDataStruct) != 0);
1361     if (!success)
1362     {
1363         FindClose(gs_hFileStruct);
1364         gs_hFileStruct = INVALID_HANDLE_VALUE;
1365     }
1366     else
1367     {
1368         bool isdir = !!(gs_findDataStruct.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
1369
1370         if (isdir && !(gs_findFlags & wxDIR))
1371             goto try_again;
1372         else if (!isdir && gs_findFlags && !(gs_findFlags & wxFILE))
1373             goto try_again;
1374
1375         if ( !path.IsEmpty() )
1376             result << path << _T('\\');
1377         result << gs_findDataStruct.cFileName;
1378     }
1379
1380     return result;
1381 #else // Win16
1382
1383 #ifdef __BORLANDC__
1384     if (findnext(&gs_findDataStruct) == 0)
1385 #else
1386         if (_dos_findnext(&gs_findDataStruct) == 0)
1387 #endif
1388         {
1389             /* MATTHEW: [5] Check directory flag */
1390             char attrib;
1391
1392 #ifdef __BORLANDC__
1393             attrib = gs_findDataStruct.ff_attrib;
1394 #else
1395             attrib = gs_findDataStruct.attrib;
1396 #endif
1397
1398             if (attrib & _A_SUBDIR) {
1399                 if (!(gs_findFlags & wxDIR))
1400                     goto try_again;
1401             } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1402                 goto try_again;
1403
1404
1405             result +=
1406 #ifdef __BORLANDC__
1407                       gs_findDataStruct.ff_name
1408 #else
1409                       gs_findDataStruct.name
1410 #endif
1411                       ;
1412         }
1413 #endif // Win32/16
1414
1415     return result;
1416 }
1417
1418 #endif // Unix/Windows
1419
1420 // Get current working directory.
1421 // If buf is NULL, allocates space using new, else
1422 // copies into buf.
1423 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1424 {
1425   if (!buf)
1426     buf = new wxChar[sz+1];
1427 #if wxUSE_UNICODE
1428   char *cbuf = new char[sz+1];
1429 #ifdef _MSC_VER
1430   if (_getcwd(cbuf, sz) == NULL) {
1431 #else
1432   if (getcwd(cbuf, sz) == NULL) {
1433 #endif
1434     delete [] cbuf;
1435 #else
1436 #ifdef _MSC_VER
1437   if (_getcwd(buf, sz) == NULL) {
1438 #else
1439   if (getcwd(buf, sz) == NULL) {
1440 #endif
1441 #endif
1442     buf[0] = _T('.');
1443     buf[1] = _T('\0');
1444   }
1445 #if wxUSE_UNICODE
1446   else {
1447     wxConv_file.MB2WC(buf, cbuf, sz);
1448     delete [] cbuf;
1449   }
1450 #endif
1451   return buf;
1452 }
1453
1454 wxString wxGetCwd()
1455 {
1456     static const size_t maxPathLen = 1024;
1457
1458     wxString str;
1459     wxGetWorkingDirectory(str.GetWriteBuf(maxPathLen), maxPathLen);
1460     str.UngetWriteBuf();
1461
1462     return str;
1463 }
1464
1465 bool wxSetWorkingDirectory(const wxString& d)
1466 {
1467 #if defined( __UNIX__ ) || defined( __WXMAC__ )
1468   return (chdir(d.fn_str()) == 0);
1469 #elif defined(__WINDOWS__)
1470
1471 #ifdef __WIN32__
1472   return (bool)(SetCurrentDirectory(d) != 0);
1473 #else
1474   // Must change drive, too.
1475   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1476   if (isDriveSpec)
1477   {
1478     wxChar firstChar = d[0];
1479
1480     // To upper case
1481     if (firstChar > 90)
1482       firstChar = firstChar - 32;
1483
1484     // To a drive number
1485     unsigned int driveNo = firstChar - 64;
1486     if (driveNo > 0)
1487     {
1488        unsigned int noDrives;
1489        _dos_setdrive(driveNo, &noDrives);
1490     }
1491   }
1492   bool success = (chdir(WXSTRINGCAST d) == 0);
1493
1494   return success;
1495 #endif
1496
1497 #endif
1498 }
1499
1500 // Get the OS directory if appropriate (such as the Windows directory).
1501 // On non-Windows platform, probably just return the empty string.
1502 wxString wxGetOSDirectory()
1503 {
1504 #ifdef __WINDOWS__
1505     wxChar buf[256];
1506     GetWindowsDirectory(buf, 256);
1507     return wxString(buf);
1508 #else
1509     return wxEmptyString;
1510 #endif
1511 }
1512
1513 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1514 {
1515   size_t len = wxStrlen(pszFileName);
1516   if ( len == 0 )
1517     return FALSE;
1518   else
1519     return wxIsPathSeparator(pszFileName[len - 1]);
1520 }
1521
1522 // find a file in a list of directories, returns false if not found
1523 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1524 {
1525   // we assume that it's not empty
1526   wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1527                _("empty file name in wxFindFileInPath"));
1528
1529   // skip path separator in the beginning of the file name if present
1530   if ( wxIsPathSeparator(*pszFile) )
1531     pszFile++;
1532
1533   // copy the path (strtok will modify it)
1534   wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1535   wxStrcpy(szPath, pszPath);
1536
1537   wxString strFile;
1538   wxChar *pc, *save_ptr;
1539   for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1540         pc != NULL;
1541         pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1542   {
1543     // search for the file in this directory
1544     strFile = pc;
1545     if ( !wxEndsWithPathSeparator(pc) )
1546       strFile += wxFILE_SEP_PATH;
1547     strFile += pszFile;
1548
1549     if ( FileExists(strFile) ) {
1550       *pStr = strFile;
1551       break;
1552     }
1553   }
1554
1555   delete [] szPath;
1556
1557   return pc != NULL;  // if true => we breaked from the loop
1558 }
1559
1560 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1561                              wxString *pstrPath,
1562                              wxString *pstrName,
1563                              wxString *pstrExt)
1564 {
1565     // it can be empty, but it shouldn't be NULL
1566     wxCHECK_RET( pszFileName, _T("NULL file name in wxSplitPath") );
1567
1568     const wxChar *pDot = wxStrrchr(pszFileName, wxFILE_SEP_EXT);
1569
1570 #ifdef __WXMSW__
1571     // under Windows we understand both separators
1572     const wxChar *pSepUnix = wxStrrchr(pszFileName, wxFILE_SEP_PATH_UNIX);
1573     const wxChar *pSepDos = wxStrrchr(pszFileName, wxFILE_SEP_PATH_DOS);
1574     const wxChar *pLastSeparator = pSepUnix > pSepDos ? pSepUnix : pSepDos;
1575 #else // assume Unix
1576     const wxChar *pLastSeparator = wxStrrchr(pszFileName, wxFILE_SEP_PATH_UNIX);
1577
1578     if ( pDot == pszFileName )
1579     {
1580         // under Unix files like .profile are treated in a special way
1581         pDot = NULL;
1582     }
1583 #endif // MSW/Unix
1584
1585     if ( pDot < pLastSeparator )
1586     {
1587         // the dot is part of the path, not the start of the extension
1588         pDot = NULL;
1589     }
1590
1591     if ( pstrPath )
1592     {
1593         if ( pLastSeparator )
1594             *pstrPath = wxString(pszFileName, pLastSeparator - pszFileName);
1595         else
1596             pstrPath->Empty();
1597     }
1598
1599     if ( pstrName )
1600     {
1601         const wxChar *start = pLastSeparator ? pLastSeparator + 1 : pszFileName;
1602         const wxChar *end = pDot ? pDot : pszFileName + wxStrlen(pszFileName);
1603
1604         *pstrName = wxString(start, end - start);
1605     }
1606
1607     if ( pstrExt )
1608     {
1609         if ( pDot )
1610             *pstrExt = wxString(pDot + 1);
1611         else
1612             pstrExt->Empty();
1613     }
1614 }
1615
1616 //------------------------------------------------------------------------
1617 // wild character routines
1618 //------------------------------------------------------------------------
1619
1620 bool wxIsWild( const wxString& pattern )
1621 {
1622   wxString tmp = pattern;
1623   wxChar *pat = WXSTRINGCAST(tmp);
1624     while (*pat) {
1625         switch (*pat++) {
1626         case _T('?'): case _T('*'): case _T('['): case _T('{'):
1627             return TRUE;
1628         case _T('\\'):
1629             if (!*pat++)
1630                 return FALSE;
1631         }
1632     }
1633     return FALSE;
1634 };
1635
1636 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1637
1638 #if defined(HAVE_FNMATCH_H)
1639 {
1640 // this probably won't work well for multibyte chars in Unicode mode?
1641    if(dot_special)
1642       return fnmatch(pat.fn_str(), text.fn_str(), FNM_PERIOD) == 0;
1643    else
1644       return fnmatch(pat.fn_str(), text.fn_str(), 0) == 0;
1645 }
1646 #else
1647
1648 // #pragma error Broken implementation of wxMatchWild() -- needs fixing!
1649
1650    /*
1651     * WARNING: this code is broken!
1652     */
1653 {
1654   wxString tmp1 = pat;
1655   wxChar *pattern = WXSTRINGCAST(tmp1);
1656   wxString tmp2 = text;
1657   wxChar *str = WXSTRINGCAST(tmp2);
1658     wxChar c;
1659     wxChar *cp;
1660     bool done = FALSE, ret_code, ok;
1661     // Below is for vi fans
1662     const wxChar OB = _T('{'), CB = _T('}');
1663
1664     // dot_special means '.' only matches '.'
1665     if (dot_special && *str == _T('.') && *pattern != *str)
1666         return FALSE;
1667
1668     while ((*pattern != _T('\0')) && (!done)
1669     && (((*str==_T('\0'))&&((*pattern==OB)||(*pattern==_T('*'))))||(*str!=_T('\0')))) {
1670         switch (*pattern) {
1671         case _T('\\'):
1672             pattern++;
1673             if (*pattern != _T('\0'))
1674                 pattern++;
1675             break;
1676         case _T('*'):
1677             pattern++;
1678             ret_code = FALSE;
1679             while ((*str!=_T('\0'))
1680             && (!(ret_code=wxMatchWild(pattern, str++, FALSE))))
1681                 /*loop*/;
1682             if (ret_code) {
1683                 while (*str != _T('\0'))
1684                     str++;
1685                 while (*pattern != _T('\0'))
1686                     pattern++;
1687             }
1688             break;
1689         case _T('['):
1690             pattern++;
1691           repeat:
1692             if ((*pattern == _T('\0')) || (*pattern == _T(']'))) {
1693                 done = TRUE;
1694                 break;
1695             }
1696             if (*pattern == _T('\\')) {
1697                 pattern++;
1698                 if (*pattern == _T('\0')) {
1699                     done = TRUE;
1700                     break;
1701                 }
1702             }
1703             if (*(pattern + 1) == _T('-')) {
1704                 c = *pattern;
1705                 pattern += 2;
1706                 if (*pattern == _T(']')) {
1707                     done = TRUE;
1708                     break;
1709                 }
1710                 if (*pattern == _T('\\')) {
1711                     pattern++;
1712                     if (*pattern == _T('\0')) {
1713                         done = TRUE;
1714                         break;
1715                     }
1716                 }
1717                 if ((*str < c) || (*str > *pattern)) {
1718                     pattern++;
1719                     goto repeat;
1720                 }
1721             } else if (*pattern != *str) {
1722                 pattern++;
1723                 goto repeat;
1724             }
1725             pattern++;
1726             while ((*pattern != _T(']')) && (*pattern != _T('\0'))) {
1727                 if ((*pattern == _T('\\')) && (*(pattern + 1) != _T('\0')))
1728                     pattern++;
1729                 pattern++;
1730             }
1731             if (*pattern != _T('\0')) {
1732                 pattern++, str++;
1733             }
1734             break;
1735         case _T('?'):
1736             pattern++;
1737             str++;
1738             break;
1739         case OB:
1740             pattern++;
1741             while ((*pattern != CB) && (*pattern != _T('\0'))) {
1742                 cp = str;
1743                 ok = TRUE;
1744                 while (ok && (*cp != _T('\0')) && (*pattern != _T('\0'))
1745                 &&  (*pattern != _T(',')) && (*pattern != CB)) {
1746                     if (*pattern == _T('\\'))
1747                         pattern++;
1748                     ok = (*pattern++ == *cp++);
1749                 }
1750                 if (*pattern == _T('\0')) {
1751                     ok = FALSE;
1752                     done = TRUE;
1753                     break;
1754                 } else if (ok) {
1755                     str = cp;
1756                     while ((*pattern != CB) && (*pattern != _T('\0'))) {
1757                         if (*++pattern == _T('\\')) {
1758                             if (*++pattern == CB)
1759                                 pattern++;
1760                         }
1761                     }
1762                 } else {
1763                     while (*pattern!=CB && *pattern!=_T(',') && *pattern!=_T('\0')) {
1764                         if (*++pattern == _T('\\')) {
1765                             if (*++pattern == CB || *pattern == _T(','))
1766                                 pattern++;
1767                         }
1768                     }
1769                 }
1770                 if (*pattern != _T('\0'))
1771                     pattern++;
1772             }
1773             break;
1774         default:
1775             if (*str == *pattern) {
1776                 str++, pattern++;
1777             } else {
1778                 done = TRUE;
1779             }
1780         }
1781     }
1782     while (*pattern == _T('*'))
1783         pattern++;
1784     return ((*str == _T('\0')) && (*pattern == _T('\0')));
1785 };
1786
1787 #endif
1788
1789 #ifdef __VISUALC__
1790     #pragma warning(default:4706)   // assignment within conditional expression
1791 #endif // VC++