src/common/filefn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        filefn.cpp
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "filefn.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26 #include "wx/defs.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 #include "wx/utils.h"
  33 #include "wx/intl.h"
  34 #include "wx/file.h"
  35 #include "wx/filename.h"
  36
  37 // there are just too many of those...
  38 #ifdef __VISUALC__
  39     #pragma warning(disable:4706)   // assignment within conditional expression
  40 #endif // VC++
  41
  42 #include <ctype.h>
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #if !defined(__WATCOMC__)
  47     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  48         #include <errno.h>
  49     #endif
  50 #endif
  51
  52 #include <time.h>
  53
  54 #ifndef __MWERKS__
  55     #include <sys/types.h>
  56     #include <sys/stat.h>
  57 #else
  58     #include <stat.h>
  59     #include <unistd.h>
  60     #include <unix.h>
  61 #endif
  62
  63 #ifdef __UNIX__
  64     #include <unistd.h>
  65     #include <dirent.h>
  66 #endif
  67
  68 #ifdef __WXPM__
  69     #include <process.h>
  70     #include "wx/os2/private.h"
  71 #endif
  72 #ifdef __WINDOWS__
  73 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
  74     #include <direct.h>
  75     #include <dos.h>
  76     #include <io.h>
  77 #endif // __WINDOWS__
  78 #endif // native Win compiler
  79
  80 #ifdef __GNUWIN32__
  81     #ifndef __TWIN32__
  82         #include <sys/unistd.h>
  83     #endif
  84 #endif
  85
  86 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  87                     // this (3.1 I believe) and how to test for it.
  88                     // If this works for Borland 4.0 as well, then no worries.
  89     #include <dir.h>
  90 #endif
  91
  92 #ifdef __SALFORDC__
  93     #include <dir.h>
  94     #include <unix.h>
  95 #endif
  96
  97 #include "wx/setup.h"
  98 #include "wx/log.h"
  99
 100 // No, Cygwin doesn't appear to have fnmatch.h after all.
 101 #if defined(HAVE_FNMATCH_H)
 102     #include "fnmatch.h"
 103 #endif
 104
 105 #ifdef __WINDOWS__
 106     #include <windows.h>
 107 #endif
 108
 109 // ----------------------------------------------------------------------------
 110 // constants
 111 // ----------------------------------------------------------------------------
 112
 113 #define _MAXPATHLEN 500
 114
 115 extern wxChar *wxBuffer;
 116
 117 #if defined(__WXMAC__) && !defined(__UNIX__)
 118     #include "morefile.h"
 119     #include "moreextr.h"
 120     #include "fullpath.h"
 121     #include "fspcompa.h"
 122 #endif
 123
 124 IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 125
 126 // ----------------------------------------------------------------------------
 127 // private globals
 128 // ----------------------------------------------------------------------------
 129
 130 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 131
 132 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 133 //
 134 // VisualAge C++ V4.0 cannot have any external linkage const decs
 135 // in headers included by more than one primary source
 136 //
 137 const off_t wxInvalidOffset = (off_t)-1;
 138 #endif
 139
 140 // ----------------------------------------------------------------------------
 141 // macros
 142 // ----------------------------------------------------------------------------
 143
 144 // we need to translate Mac filenames before passing them to OS functions
 145 #ifdef __MAC__
 146     #define OS_FILENAME(s) (wxUnix2MacFilename(s))
 147 #else
 148     #define OS_FILENAME(s) (s.fn_str())
 149 #endif
 150
 151 // ============================================================================
 152 // implementation
 153 // ============================================================================
 154
 155 void wxPathList::Add (const wxString& path)
 156 {
 157     wxStringList::Add (WXSTRINGCAST path);
 158 }
 159
 160 // Add paths e.g. from the PATH environment variable
 161 void wxPathList::AddEnvList (const wxString& envVariable)
 162 {
 163   static const wxChar PATH_TOKS[] =
 164 #ifdef __WINDOWS__
 165         wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 166 #else
 167         wxT(" :;");
 168 #endif
 169
 170   wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 171   if (val && *val)
 172     {
 173       wxChar *s = copystring (val);
 174       wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 175
 176       if (token)
 177       {
 178           Add (copystring (token));
 179           while (token)
 180           {
 181               if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
 182                   Add (wxString(token));
 183           }
 184       }
 185
 186       // suppress warning about unused variable save_ptr when wxStrtok() is a
 187       // macro which throws away its third argument
 188       save_ptr = token;
 189
 190       delete [] s;
 191     }
 192 }
 193
 194 // Given a full filename (with path), ensure that that file can
 195 // be accessed again USING FILENAME ONLY by adding the path
 196 // to the list if not already there.
 197 void wxPathList::EnsureFileAccessible (const wxString& path)
 198 {
 199     wxString path_only(wxPathOnly(path));
 200     if ( !path_only.IsEmpty() )
 201     {
 202         if ( !Member(path_only) )
 203             Add(path_only);
 204     }
 205 }
 206
 207 bool wxPathList::Member (const wxString& path)
 208 {
 209   for (wxNode * node = First (); node != NULL; node = node->Next ())
 210   {
 211       wxString path2((wxChar *) node->Data ());
 212       if (
 213 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 214       // Case INDEPENDENT
 215           path.CompareTo (path2, wxString::ignoreCase) == 0
 216 #else
 217       // Case sensitive File System
 218           path.CompareTo (path2) == 0
 219 #endif
 220         )
 221         return TRUE;
 222   }
 223   return FALSE;
 224 }
 225
 226 wxString wxPathList::FindValidPath (const wxString& file)
 227 {
 228   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 229     return wxString(wxFileFunctionsBuffer);
 230
 231   wxChar buf[_MAXPATHLEN];
 232   wxStrcpy(buf, wxFileFunctionsBuffer);
 233
 234   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 235   filename = IsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 236
 237   for (wxNode * node = First (); node; node = node->Next ())
 238     {
 239       wxChar *path = (wxChar *) node->Data ();
 240       wxStrcpy (wxFileFunctionsBuffer, path);
 241       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 242       if (ch != wxT('\\') && ch != wxT('/'))
 243         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 244       wxStrcat (wxFileFunctionsBuffer, filename);
 245 #ifdef __WINDOWS__
 246       Unix2DosFilename (wxFileFunctionsBuffer);
 247 #endif
 248       if (wxFileExists (wxFileFunctionsBuffer))
 249       {
 250         return wxString(wxFileFunctionsBuffer);        // Found!
 251       }
 252     }                                // for()
 253
 254   return wxString(wxT(""));                    // Not found
 255 }
 256
 257 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 258 {
 259     wxString f = FindValidPath(file);
 260     if ( wxIsAbsolutePath(f) )
 261         return f;
 262
 263     wxString buf;
 264     wxGetWorkingDirectory(buf.GetWriteBuf(_MAXPATHLEN), _MAXPATHLEN - 1);
 265     buf.UngetWriteBuf();
 266     if ( !wxEndsWithPathSeparator(buf) )
 267     {
 268         buf += wxFILE_SEP_PATH;
 269     }
 270     buf += f;
 271
 272     return buf;
 273 }
 274
 275 bool
 276 wxFileExists (const wxString& filename)
 277 {
 278 #ifdef __GNUWIN32__ // (fix a B20 bug)
 279     return GetFileAttributes(filename) != 0xFFFFFFFF;
 280 #else
 281     wxStructStat stbuf;
 282     if ( !filename.empty() && wxStat (OS_FILENAME(filename), &stbuf) == 0 )
 283         return TRUE;
 284
 285     return FALSE;
 286 #endif
 287 }
 288
 289 bool
 290 wxIsAbsolutePath (const wxString& filename)
 291 {
 292   if (filename != wxT(""))
 293     {
 294       if (filename[0] == wxT('/')
 295 #ifdef __VMS__
 296       || (filename[0] == wxT('[') && filename[1] != wxT('.'))
 297 #endif
 298 #ifdef __WINDOWS__
 299       /* MSDOS */
 300       || filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':'))
 301 #endif
 302         )
 303         return TRUE;
 304     }
 305   return FALSE;
 306 }
 307
 308 /*
 309  * Strip off any extension (dot something) from end of file,
 310  * IF one exists. Inserts zero into buffer.
 311  *
 312  */
 313
 314 void wxStripExtension(wxChar *buffer)
 315 {
 316   int len = wxStrlen(buffer);
 317   int i = len-1;
 318   while (i > 0)
 319   {
 320     if (buffer[i] == wxT('.'))
 321     {
 322       buffer[i] = 0;
 323       break;
 324     }
 325     i --;
 326   }
 327 }
 328
 329 void wxStripExtension(wxString& buffer)
 330 {
 331   size_t len = buffer.Length();
 332   size_t i = len-1;
 333   while (i > 0)
 334   {
 335     if (buffer.GetChar(i) == wxT('.'))
 336     {
 337       buffer = buffer.Left(i);
 338       break;
 339     }
 340     i --;
 341   }
 342 }
 343
 344 // Destructive removal of /./ and /../ stuff
 345 wxChar *wxRealPath (wxChar *path)
 346 {
 347 #ifdef __WXMSW__
 348   static const wxChar SEP = wxT('\\');
 349   Unix2DosFilename(path);
 350 #else
 351   static const wxChar SEP = wxT('/');
 352 #endif
 353   if (path[0] && path[1]) {
 354     /* MATTHEW: special case "/./x" */
 355     wxChar *p;
 356     if (path[2] == SEP && path[1] == wxT('.'))
 357       p = &path[0];
 358     else
 359       p = &path[2];
 360     for (; *p; p++)
 361       {
 362         if (*p == SEP)
 363           {
 364             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 365               {
 366                 wxChar *q;
 367                 for (q = p - 1; q >= path && *q != SEP; q--);
 368                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 369                     && (q - 1 <= path || q[-1] != SEP))
 370                   {
 371                     wxStrcpy (q, p + 3);
 372                     if (path[0] == wxT('\0'))
 373                       {
 374                         path[0] = SEP;
 375                         path[1] = wxT('\0');
 376                       }
 377 #ifdef __WXMSW__
 378                     /* Check that path[2] is NULL! */
 379                     else if (path[1] == wxT(':') && !path[2])
 380                       {
 381                         path[2] = SEP;
 382                         path[3] = wxT('\0');
 383                       }
 384 #endif
 385                     p = q - 1;
 386                   }
 387               }
 388             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 389               wxStrcpy (p, p + 2);
 390           }
 391       }
 392   }
 393   return path;
 394 }
 395
 396 // Must be destroyed
 397 wxChar *wxCopyAbsolutePath(const wxString& filename)
 398 {
 399   if (filename == wxT(""))
 400     return (wxChar *) NULL;
 401
 402   if (! IsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 403     wxChar  buf[_MAXPATHLEN];
 404     buf[0] = wxT('\0');
 405     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 406     wxChar ch = buf[wxStrlen(buf) - 1];
 407 #ifdef __WXMSW__
 408     if (ch != wxT('\\') && ch != wxT('/'))
 409         wxStrcat(buf, wxT("\\"));
 410 #else
 411     if (ch != wxT('/'))
 412         wxStrcat(buf, wxT("/"));
 413 #endif
 414     wxStrcat(buf, wxFileFunctionsBuffer);
 415     return copystring( wxRealPath(buf) );
 416   }
 417   return copystring( wxFileFunctionsBuffer );
 418 }
 419
 420 /*-
 421  Handles:
 422    ~/ => home dir
 423    ~user/ => user's home dir
 424    If the environment variable a = "foo" and b = "bar" then:
 425    Unix:
 426         $a        =>        foo
 427         $a$b        =>        foobar
 428         $a.c        =>        foo.c
 429         xxx$a        =>        xxxfoo
 430         ${a}!        =>        foo!
 431         $(b)!        =>        bar!
 432         \$a        =>        \$a
 433    MSDOS:
 434         $a        ==>        $a
 435         $(a)        ==>        foo
 436         $(a)$b        ==>        foo$b
 437         $(a)$(b)==>        foobar
 438         test.$$        ==>        test.$$
 439  */
 440
 441 /* input name in name, pathname output to buf. */
 442
 443 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 444 {
 445     register wxChar *d, *s, *nm;
 446     wxChar          lnm[_MAXPATHLEN];
 447     int             q;
 448
 449     // Some compilers don't like this line.
 450 //    const wxChar    trimchars[] = wxT("\n \t");
 451
 452     wxChar      trimchars[4];
 453     trimchars[0] = wxT('\n');
 454     trimchars[1] = wxT(' ');
 455     trimchars[2] = wxT('\t');
 456     trimchars[3] = 0;
 457
 458 #ifdef __WXMSW__
 459      const wxChar     SEP = wxT('\\');
 460 #else
 461      const wxChar     SEP = wxT('/');
 462 #endif
 463     buf[0] = wxT('\0');
 464     if (name == NULL || *name == wxT('\0'))
 465         return buf;
 466     nm = copystring(name); // Make a scratch copy
 467     wxChar *nm_tmp = nm;
 468
 469     /* Skip leading whitespace and cr */
 470     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 471         nm++;
 472     /* And strip off trailing whitespace and cr */
 473     s = nm + (q = wxStrlen(nm)) - 1;
 474     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 475         *s = wxT('\0');
 476
 477     s = nm;
 478     d = lnm;
 479 #ifdef __WXMSW__
 480     q = FALSE;
 481 #else
 482     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 483 #endif
 484
 485     /* Expand inline environment variables */
 486 #ifdef __VISAGECPP__
 487     while (*d)
 488     {
 489       *d++ = *s;
 490       if(*s == wxT('\\'))
 491       {
 492         *(d - 1) = *++s;
 493         if (*d)
 494         {
 495           s++;
 496           continue;
 497         }
 498         else
 499            break;
 500       }
 501       else
 502 #else
 503     while ((*d++ = *s) != NULL) {
 504 #  ifndef __WXMSW__
 505         if (*s == wxT('\\')) {
 506             if ((*(d - 1) = *++s)) {
 507                 s++;
 508                 continue;
 509             } else
 510                 break;
 511         } else
 512 #  endif
 513 #endif
 514 #ifdef __WXMSW__
 515         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 516 #else
 517         if (*s++ == wxT('$'))
 518 #endif
 519         {
 520             register wxChar  *start = d;
 521             register int     braces = (*s == wxT('{') || *s == wxT('('));
 522             register wxChar  *value;
 523             while ((*d++ = *s) != NULL)
 524                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 525                     break;
 526                 else
 527                     s++;
 528             *--d = 0;
 529             value = wxGetenv(braces ? start + 1 : start);
 530             if (value) {
 531                 for ((d = start - 1); (*d++ = *value++) != NULL;);
 532                 d--;
 533                 if (braces && *s)
 534                     s++;
 535             }
 536         }
 537     }
 538
 539     /* Expand ~ and ~user */
 540     nm = lnm;
 541     s = wxT("");
 542     if (nm[0] == wxT('~') && !q)
 543     {
 544         /* prefix ~ */
 545         if (nm[1] == SEP || nm[1] == 0)
 546         {        /* ~/filename */
 547         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 548             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 549                 if (*++nm)
 550                     nm++;
 551             }
 552         } else
 553         {                /* ~user/filename */
 554             register wxChar  *nnm;
 555             register wxChar  *home;
 556             for (s = nm; *s && *s != SEP; s++);
 557             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 558             was_sep = (*s == SEP);
 559             nnm = *s ? s + 1 : s;
 560             *s = 0;
 561         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 562             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 563                if (was_sep) /* replace only if it was there: */
 564                    *s = SEP;
 565                 s = wxT("");
 566             } else {
 567                 nm = nnm;
 568                 s = home;
 569             }
 570         }
 571     }
 572
 573     d = buf;
 574     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 575         /* Copy home dir */
 576         while (wxT('\0') != (*d++ = *s++))
 577           /* loop */;
 578         // Handle root home
 579         if (d - 1 > buf && *(d - 2) != SEP)
 580           *(d - 1) = SEP;
 581     }
 582     s = nm;
 583     while ((*d++ = *s++) != NULL);
 584     delete[] nm_tmp; // clean up alloc
 585     /* Now clean up the buffer */
 586     return wxRealPath(buf);
 587 }
 588
 589 /* Contract Paths to be build upon an environment variable
 590    component:
 591
 592    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 593
 594    The call wxExpandPath can convert these back!
 595  */
 596 wxChar *
 597 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 598 {
 599   static wxChar dest[_MAXPATHLEN];
 600
 601   if (filename == wxT(""))
 602     return (wxChar *) NULL;
 603
 604   wxStrcpy (dest, WXSTRINGCAST filename);
 605 #ifdef __WXMSW__
 606   Unix2DosFilename(dest);
 607 #endif
 608
 609   // Handle environment
 610   const wxChar *val = (const wxChar *) NULL;
 611   wxChar *tcp = (wxChar *) NULL;
 612   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 613      (tcp = wxStrstr (dest, val)) != NULL)
 614     {
 615         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 616         *tcp++ = wxT('$');
 617         *tcp++ = wxT('{');
 618         wxStrcpy (tcp, WXSTRINGCAST envname);
 619         wxStrcat (tcp, wxT("}"));
 620         wxStrcat (tcp, wxFileFunctionsBuffer);
 621     }
 622
 623   // Handle User's home (ignore root homes!)
 624   size_t len = 0;
 625   if ((val = wxGetUserHome (user)) != NULL &&
 626       (len = wxStrlen(val)) > 2 &&
 627       wxStrncmp(dest, val, len) == 0)
 628     {
 629       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 630       if (user != wxT(""))
 631              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 632 #ifdef __WXMSW__
 633 //      strcat(wxFileFunctionsBuffer, "\\");
 634 #else
 635 //      strcat(wxFileFunctionsBuffer, "/");
 636 #endif
 637       wxStrcat(wxFileFunctionsBuffer, dest + len);
 638       wxStrcpy (dest, wxFileFunctionsBuffer);
 639     }
 640
 641   return dest;
 642 }
 643
 644 // Return just the filename, not the path
 645 // (basename)
 646 wxChar *wxFileNameFromPath (wxChar *path)
 647 {
 648   if (path)
 649     {
 650       register wxChar *tcp;
 651
 652       tcp = path + wxStrlen (path);
 653       while (--tcp >= path)
 654         {
 655           if (*tcp == wxT('/') || *tcp == wxT('\\')
 656 #ifdef __VMS__
 657      || *tcp == wxT(':') || *tcp == wxT(']'))
 658 #else
 659      )
 660 #endif
 661             return tcp + 1;
 662         }                        /* while */
 663 #if defined(__WXMSW__) || defined(__WXPM__)
 664       if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 665         return path + 2;
 666 #endif
 667     }
 668   return path;
 669 }
 670
 671 wxString wxFileNameFromPath (const wxString& path1)
 672 {
 673   if (path1 != wxT(""))
 674   {
 675
 676       wxChar *path = WXSTRINGCAST path1 ;
 677       register wxChar *tcp;
 678
 679       tcp = path + wxStrlen (path);
 680       while (--tcp >= path)
 681           {
 682             if (*tcp == wxT('/') || *tcp == wxT('\\')
 683 #ifdef __VMS__
 684         || *tcp == wxT(':') || *tcp == wxT(']'))
 685 #else
 686         )
 687 #endif
 688                 return wxString(tcp + 1);
 689             }                        /* while */
 690 #if defined(__WXMSW__) || defined(__WXPM__)
 691       if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 692             return wxString(path + 2);
 693 #endif
 694     }
 695   // Yes, this should return the path, not an empty string, otherwise
 696   // we get "thing.txt" -> "".
 697   return path1;
 698 }
 699
 700 // Return just the directory, or NULL if no directory
 701 wxChar *
 702 wxPathOnly (wxChar *path)
 703 {
 704   if (path && *path)
 705     {
 706       static wxChar buf[_MAXPATHLEN];
 707
 708       // Local copy
 709       wxStrcpy (buf, path);
 710
 711       int l = wxStrlen(path);
 712       bool done = FALSE;
 713
 714       int i = l - 1;
 715
 716       // Search backward for a backward or forward slash
 717       while (!done && i > -1)
 718       {
 719         // ] is for VMS
 720         if (path[i] == wxT('/') || path[i] == wxT('\\') || path[i] == wxT(']'))
 721         {
 722           done = TRUE;
 723 #ifdef __VMS__
 724            if ( path[i] == wxT(']') )
 725              buf[i+1] = 0;
 726            else
 727 #endif
 728           buf[i] = 0;
 729
 730           return buf;
 731         }
 732         else i --;
 733       }
 734
 735 #if defined(__WXMSW__) || defined(__WXPM__)
 736       // Try Drive specifier
 737       if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 738         {
 739           // A:junk --> A:. (since A:.\junk Not A:\junk)
 740           buf[2] = wxT('.');
 741           buf[3] = wxT('\0');
 742           return buf;
 743         }
 744 #endif
 745     }
 746
 747   return (wxChar *) NULL;
 748 }
 749
 750 // Return just the directory, or NULL if no directory
 751 wxString wxPathOnly (const wxString& path)
 752 {
 753   if (path != wxT(""))
 754     {
 755       wxChar buf[_MAXPATHLEN];
 756
 757       // Local copy
 758       wxStrcpy (buf, WXSTRINGCAST path);
 759
 760       int l = path.Length();
 761       bool done = FALSE;
 762
 763       int i = l - 1;
 764
 765       // Search backward for a backward or forward slash
 766       while (!done && i > -1)
 767       {
 768         // ] is for VMS
 769         if (path[i] == wxT('/') || path[i] == wxT('\\') || path[i] == wxT(']'))
 770         {
 771           done = TRUE;
 772 #ifdef __VMS__
 773            if ( path[i] == wxT(']') )
 774              buf[i+1] = 0;
 775            else
 776 #endif
 777           buf[i] = 0;
 778
 779           return wxString(buf);
 780         }
 781         else i --;
 782       }
 783
 784 #if defined(__WXMSW__) || defined(__WXPM__)
 785       // Try Drive specifier
 786       if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 787         {
 788           // A:junk --> A:. (since A:.\junk Not A:\junk)
 789           buf[2] = wxT('.');
 790           buf[3] = wxT('\0');
 791           return wxString(buf);
 792         }
 793 #endif
 794     }
 795
 796   return wxString(wxT(""));
 797 }
 798
 799 // Utility for converting delimiters in DOS filenames to UNIX style
 800 // and back again - or we get nasty problems with delimiters.
 801 // Also, convert to lower case, since case is significant in UNIX.
 802
 803 #if defined(__WXMAC__) && !defined(__UNIX__)
 804
 805 static char sMacFileNameConversion[ 1000 ] ;
 806
 807 wxString wxMac2UnixFilename (const char *str)
 808 {
 809     char *s = sMacFileNameConversion ;
 810     strcpy( s , str ) ;
 811   if (s)
 812   {
 813     memmove( s+1 , s ,strlen( s ) + 1) ;
 814     if ( *s == ':' )
 815             *s = '.' ;
 816     else
 817             *s = '/' ;
 818
 819     while (*s)
 820     {
 821             if (*s == ':')
 822               *s = '/';
 823             else
 824               *s = wxTolower (*s);        // Case INDEPENDENT
 825             s++;
 826     }
 827   }
 828   return wxString (sMacFileNameConversion) ;
 829 }
 830
 831 wxString wxUnix2MacFilename (const char *str)
 832 {
 833     char *s = sMacFileNameConversion ;
 834     strcpy( s , str ) ;
 835   if (s)
 836   {
 837     if ( *s == '.' )
 838     {
 839       // relative path , since it goes on with slash which is translated to a :
 840       memmove( s , s+1 ,strlen( s ) ) ;
 841     }
 842     else if ( *s == '/' )
 843     {
 844       // absolute path -> on mac just start with the drive name
 845       memmove( s , s+1 ,strlen( s ) ) ;
 846     }
 847     else
 848     {
 849       wxASSERT_MSG( 1 , "unkown path beginning" ) ;
 850     }
 851     while (*s)
 852     {
 853       if (*s == '/' || *s == '\\')
 854       {
 855           // convert any back-directory situations
 856           if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
 857           {
 858           *s = ':';
 859                 memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
 860           }
 861           else
 862           *s = ':';
 863       }
 864
 865       s++ ;
 866     }
 867   }
 868   return wxString (sMacFileNameConversion) ;
 869 }
 870
 871 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 872 {
 873     Handle    myPath ;
 874     short     length ;
 875
 876     FSpGetFullPath( spec , &length , &myPath ) ;
 877     ::SetHandleSize( myPath , length + 1 ) ;
 878     ::HLock( myPath ) ;
 879     (*myPath)[length] = 0 ;
 880     if ( length > 0 && (*myPath)[length-1] ==':' )
 881         (*myPath)[length-1] = 0 ;
 882
 883     wxString result(     (char*) *myPath ) ;
 884     ::HUnlock( myPath ) ;
 885     ::DisposeHandle( myPath ) ;
 886     return result ;
 887 }
 888
 889 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
 890 {
 891     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
 892 }
 893
 894 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 895 {
 896     FSpLocationFromFullPath( strlen(path ) , path , spec ) ;
 897 }
 898
 899 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
 900 {
 901     wxString var = wxUnix2MacFilename( path ) ;
 902     wxMacFilename2FSSpec( var , spec ) ;
 903 }
 904
 905 #endif
 906 void
 907 wxDos2UnixFilename (char *s)
 908 {
 909   if (s)
 910     while (*s)
 911       {
 912         if (*s == '\\')
 913           *s = '/';
 914 #ifdef __WXMSW__
 915         else
 916           *s = wxTolower (*s);        // Case INDEPENDENT
 917 #endif
 918         s++;
 919       }
 920 }
 921
 922 void
 923 #if defined(__WXMSW__) || defined(__WXPM__)
 924 wxUnix2DosFilename (wxChar *s)
 925 #else
 926 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 927 #endif
 928 {
 929 // Yes, I really mean this to happen under DOS only! JACS
 930 #if defined(__WXMSW__) || defined(__WXPM__)
 931   if (s)
 932     while (*s)
 933       {
 934         if (*s == wxT('/'))
 935           *s = wxT('\\');
 936         s++;
 937       }
 938 #endif
 939 }
 940
 941 // Concatenate two files to form third
 942 bool
 943 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 944 {
 945   wxString outfile;
 946   if ( !wxGetTempFileName("cat", outfile) )
 947       return FALSE;
 948
 949   FILE *fp1 = (FILE *) NULL;
 950   FILE *fp2 = (FILE *) NULL;
 951   FILE *fp3 = (FILE *) NULL;
 952   // Open the inputs and outputs
 953   if ((fp1 = fopen (OS_FILENAME( file1 ), "rb")) == NULL ||
 954       (fp2 = fopen (OS_FILENAME( file2 ), "rb")) == NULL ||
 955       (fp3 = fopen (OS_FILENAME( outfile ), "wb")) == NULL)
 956     {
 957       if (fp1)
 958         fclose (fp1);
 959       if (fp2)
 960         fclose (fp2);
 961       if (fp3)
 962         fclose (fp3);
 963       return FALSE;
 964     }
 965
 966   int ch;
 967   while ((ch = getc (fp1)) != EOF)
 968     (void) putc (ch, fp3);
 969   fclose (fp1);
 970
 971   while ((ch = getc (fp2)) != EOF)
 972     (void) putc (ch, fp3);
 973   fclose (fp2);
 974
 975   fclose (fp3);
 976   bool result = wxRenameFile(outfile, file3);
 977   return result;
 978 }
 979
 980 // Copy files
 981 bool
 982 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
 983 {
 984 #if defined(__WIN32__)
 985     // CopyFile() copies file attributes and modification time too, so use it
 986     // instead of our code if available
 987     //
 988     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
 989     return ::CopyFile(file1, file2, !overwrite) != 0;
 990 #else // !Win32
 991     wxStructStat fbuf;
 992
 993     // get permissions of file1
 994     if ( wxStat(OS_FILENAME(file1), &fbuf) != 0 )
 995     {
 996         // the file probably doesn't exist or we haven't the rights to read
 997         // from it anyhow
 998         wxLogSysError(_("Impossible to get permissions for file '%s'"),
 999                       file1.c_str());
1000         return FALSE;
1001     }
1002
1003     // open file1 for reading
1004     wxFile fileIn(file1, wxFile::read);
1005     if ( !fileIn.IsOpened() )
1006         return FALSE;
1007
1008     // remove file2, if it exists. This is needed for creating
1009     // file2 with the correct permissions in the next step
1010     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1011     {
1012         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1013                       file2.c_str());
1014         return FALSE;
1015     }
1016
1017 #ifdef __UNIX__
1018     // reset the umask as we want to create the file with exactly the same
1019     // permissions as the original one
1020     mode_t oldUmask = umask( 0 );
1021 #endif // __UNIX__
1022
1023     // create file2 with the same permissions than file1 and open it for
1024     // writing
1025     wxFile fileOut;
1026     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1027         return FALSE;
1028
1029 #ifdef __UNIX__
1030     /// restore the old umask
1031     umask(oldUmask);
1032 #endif // __UNIX__
1033
1034     // copy contents of file1 to file2
1035     char buf[4096];
1036     size_t count;
1037     for ( ;; )
1038     {
1039         count = fileIn.Read(buf, WXSIZEOF(buf));
1040         if ( fileIn.Error() )
1041             return FALSE;
1042
1043         // end of file?
1044         if ( !count )
1045             break;
1046
1047         if ( fileOut.Write(buf, count) < count )
1048             return FALSE;
1049     }
1050
1051     // we can expect fileIn to be closed successfully, but we should ensure
1052     // that fileOut was closed as some write errors (disk full) might not be
1053     // detected before doing this
1054     if ( !fileIn.Close() || !fileOut.Close() )
1055         return FALSE;
1056
1057 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1058     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1059     // however
1060     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1061     {
1062         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1063                       file2.c_str());
1064         return FALSE;
1065     }
1066 #endif // OS/2 || Mac
1067
1068     return TRUE;
1069 #endif // __WXMSW__ && __WIN32__
1070 }
1071
1072 bool
1073 wxRenameFile (const wxString& file1, const wxString& file2)
1074 {
1075   // Normal system call
1076   if ( wxRename (file1, file2) == 0 )
1077     return TRUE;
1078
1079   // Try to copy
1080   if (wxCopyFile(file1, file2)) {
1081     wxRemoveFile(file1);
1082     return TRUE;
1083   }
1084   // Give up
1085   return FALSE;
1086 }
1087
1088 bool wxRemoveFile(const wxString& file)
1089 {
1090 #if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__WATCOMC__)
1091   int res = wxRemove(file);
1092 #else
1093   int res = unlink(OS_FILENAME(file));
1094 #endif
1095
1096   return res == 0;
1097 }
1098
1099 bool wxMkdir(const wxString& dir, int perm)
1100 {
1101 #if defined(__WXMAC__) && !defined(__UNIX__)
1102   return (mkdir(wxUnix2MacFilename( dir ) , 0 ) == 0);
1103 #else // !Mac
1104     const wxChar *dirname = dir.c_str();
1105
1106     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1107     // for the GNU compiler
1108 #if (!(defined(__WXMSW__) || defined(__WXPM__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__)
1109     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1110 #elif defined(__WXPM__)
1111     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1112 #else  // !MSW and !OS/2 VAC++
1113         (void)perm;
1114     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1115 #endif // !MSW/MSW
1116     {
1117         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1118
1119         return FALSE;
1120     }
1121
1122     return TRUE;
1123 #endif // Mac/!Mac
1124 }
1125
1126 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1127 {
1128 #ifdef __VMS__
1129   return FALSE; //to be changed since rmdir exists in VMS7.x
1130 #elif defined(__WXPM__)
1131   return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1132 #else
1133
1134 #ifdef __SALFORDC__
1135   return FALSE; // What to do?
1136 #else
1137   return (wxRmDir(OS_FILENAME(dir)) == 0);
1138 #endif
1139
1140 #endif
1141 }
1142
1143 // does the path exists? (may have or not '/' or '\\' at the end)
1144 bool wxPathExists(const wxChar *pszPathName)
1145 {
1146     wxString strPath(pszPathName);
1147 #ifdef __WINDOWS__
1148     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1149     // so remove all trailing backslashes from the path - but don't do this for
1150     // the pathes "d:\" (which are different from "d:") nor for just "\"
1151     while ( wxEndsWithPathSeparator(strPath) )
1152     {
1153         size_t len = strPath.length();
1154         if ( len == 1 || strPath[len - 1] == _T(':') )
1155             break;
1156
1157         strPath.Truncate(len - 1);
1158     }
1159 #endif // __WINDOWS__
1160
1161     wxStructStat st;
1162 #ifndef __VISAGECPP__
1163     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1164         ((st.st_mode & S_IFMT) == S_IFDIR);
1165 #else
1166     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1167     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1168         (st.st_mode == S_IFDIR);
1169 #endif
1170
1171 }
1172
1173 // Get a temporary filename, opening and closing the file.
1174 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1175 {
1176 #ifdef __WINDOWS__
1177
1178 #ifndef        __WIN32__
1179   wxChar tmp[144];
1180   ::GetTempFileName(0, WXSTRINGCAST prefix, 0, tmp);
1181 #else
1182   wxChar tmp[MAX_PATH];
1183   wxChar tmpPath[MAX_PATH];
1184   ::GetTempPath(MAX_PATH, tmpPath);
1185   ::GetTempFileName(tmpPath, WXSTRINGCAST prefix, 0, tmp);
1186 #endif
1187   if (buf) wxStrcpy(buf, tmp);
1188   else buf = copystring(tmp);
1189   return buf;
1190
1191 #else
1192   static short last_temp = 0;        // cache last to speed things a bit
1193   // At most 1000 temp files to a process! We use a ring count.
1194   wxChar tmp[100]; // FIXME static buffer
1195
1196   for (short suffix = last_temp + 1; suffix != last_temp; ++suffix %= 1000)
1197     {
1198       wxSprintf (tmp, wxT("/tmp/%s%d.%03x"), WXSTRINGCAST prefix, (int) getpid (), (int) suffix);
1199       if (!wxFileExists( tmp ))
1200         {
1201           // Touch the file to create it (reserve name)
1202           FILE *fd = fopen (wxFNCONV(tmp), "w");
1203           if (fd)
1204             fclose (fd);
1205           last_temp = suffix;
1206           if (buf)
1207             wxStrcpy( buf, tmp);
1208           else
1209             buf = copystring( tmp );
1210           return buf;
1211         }
1212     }
1213   wxLogError( _("wxWindows: error finding temporary file name.\n") );
1214   if (buf) buf[0] = 0;
1215   return (wxChar *) NULL;
1216 #endif
1217 }
1218
1219 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1220 {
1221     wxChar buf2[512];
1222     if (wxGetTempFileName(prefix, buf2) != (wxChar*) NULL)
1223     {
1224         buf = buf2;
1225         return TRUE;
1226     }
1227     else
1228         return FALSE;
1229 }
1230
1231 // Get first file name matching given wild card.
1232
1233 #ifdef __UNIX__
1234
1235 // Get first file name matching given wild card.
1236 // Flags are reserved for future use.
1237
1238 #if !defined( __VMS__ ) || ( __VMS_VER >= 70000000 )
1239     static DIR *gs_dirStream = (DIR *) NULL;
1240     static wxString gs_strFileSpec;
1241     static int gs_findFlags = 0;
1242 #endif
1243
1244 wxString wxFindFirstFile(const wxChar *spec, int flags)
1245 {
1246     wxString result;
1247 #ifdef __VMS
1248    wxChar *specvms = NULL;
1249 #endif
1250
1251 #if !defined( __VMS__ ) || ( __VMS_VER >= 70000000 )
1252     if (gs_dirStream)
1253         closedir(gs_dirStream); // edz 941103: better housekeping
1254
1255     gs_findFlags = flags;
1256
1257     gs_strFileSpec = spec;
1258
1259     // Find path only so we can concatenate
1260     // found file onto path
1261     wxString path(wxPathOnly(gs_strFileSpec));
1262
1263     // special case: path is really "/"
1264     if ( !path && gs_strFileSpec[0u] == wxT('/') )
1265 #ifdef __VMS
1266      {
1267         wxStrcpy( specvms , wxT( "[000000]" ) );
1268         gs_strFileSpec = specvms;
1269         wxString path_vms(wxPathOnly(gs_strFileSpec));
1270         path = path_vms;
1271      }
1272 #else
1273      path = wxT('/');
1274 #endif
1275    // path is empty => Local directory
1276     if ( !path )
1277 #ifdef __VMS
1278      {
1279         wxStrcpy( specvms , wxT( "[]" ) );
1280         gs_strFileSpec = specvms;
1281         wxString path_vms1(wxPathOnly(gs_strFileSpec));
1282         path = path_vms1;
1283      }
1284 #else
1285      path = wxT('.');
1286 #endif
1287
1288     gs_dirStream = opendir(path.fn_str());
1289     if ( !gs_dirStream )
1290     {
1291         wxLogSysError(_("Can not enumerate files in directory '%s'"),
1292                       path.c_str());
1293     }
1294     else
1295     {
1296         result = wxFindNextFile();
1297     }
1298 #endif // !VMS6.x or earlier
1299
1300     return result;
1301 }
1302
1303 wxString wxFindNextFile()
1304 {
1305     wxString result;
1306
1307 #if !defined( __VMS__ ) || ( __VMS_VER >= 70000000 )
1308     wxCHECK_MSG( gs_dirStream, result, wxT("must call wxFindFirstFile first") );
1309
1310     // Find path only so we can concatenate
1311     // found file onto path
1312     wxString path(wxPathOnly(gs_strFileSpec));
1313     wxString name(wxFileNameFromPath(gs_strFileSpec));
1314
1315     /* MATTHEW: special case: path is really "/" */
1316     if ( !path && gs_strFileSpec[0u] == wxT('/'))
1317         path = wxT('/');
1318
1319     // Do the reading
1320     struct dirent *nextDir;
1321     for ( nextDir = readdir(gs_dirStream);
1322           nextDir != NULL;
1323           nextDir = readdir(gs_dirStream) )
1324     {
1325         if (wxMatchWild(name, nextDir->d_name, FALSE) &&   // RR: added FALSE to find hidden files
1326         strcmp(nextDir->d_name, ".") &&
1327         strcmp(nextDir->d_name, "..") )
1328         {
1329             result.Empty();
1330             if ( !path.IsEmpty() )
1331             {
1332                 result = path;
1333                 if ( path != wxT('/') )
1334                     result += wxT('/');
1335             }
1336
1337             result += nextDir->d_name;
1338
1339             // Only return "." and ".." when they match
1340             bool isdir;
1341             if ( (strcmp(nextDir->d_name, ".") == 0) ||
1342                  (strcmp(nextDir->d_name, "..") == 0))
1343             {
1344                 if ( (gs_findFlags & wxDIR) != 0 )
1345                     isdir = TRUE;
1346                 else
1347                     continue;
1348             }
1349             else
1350                 isdir = wxDirExists(result);
1351
1352             // and only return directories when flags & wxDIR
1353             if ( !gs_findFlags ||
1354                  ((gs_findFlags & wxDIR) && isdir) ||
1355                  ((gs_findFlags & wxFILE) && !isdir) )
1356             {
1357                 return result;
1358             }
1359         }
1360     }
1361
1362     result.Empty(); // not found
1363
1364     closedir(gs_dirStream);
1365     gs_dirStream = (DIR *) NULL;
1366 #endif // !VMS6.2 or earlier
1367
1368     return result;
1369 }
1370
1371 #elif defined(__WXMAC__)
1372
1373 struct MacDirectoryIterator
1374 {
1375     CInfoPBRec            m_CPB ;
1376     wxInt16                m_index ;
1377     long                m_dirId ;
1378     Str255                m_name ;
1379 } ;
1380
1381 static int g_iter_flags ;
1382
1383 static MacDirectoryIterator g_iter ;
1384
1385 wxString wxFindFirstFile(const wxChar *spec, int flags)
1386 {
1387     wxString result;
1388
1389     g_iter_flags = flags; /* MATTHEW: [5] Remember flags */
1390
1391     // Find path only so we can concatenate found file onto path
1392     wxString path(wxPathOnly(spec));
1393     if ( !path.IsEmpty() )
1394         result << path << wxT('\\');
1395
1396     FSSpec fsspec ;
1397
1398     wxUnixFilename2FSSpec( result , &fsspec ) ;
1399     g_iter.m_CPB.hFileInfo.ioVRefNum = fsspec.vRefNum ;
1400     g_iter.m_CPB.hFileInfo.ioNamePtr = g_iter.m_name ;
1401     g_iter.m_index = 0 ;
1402
1403     Boolean isDir ;
1404     FSpGetDirectoryID( &fsspec , &g_iter.m_dirId , &isDir ) ;
1405     if ( !isDir )
1406         return wxEmptyString ;
1407
1408     return wxFindNextFile( ) ;
1409 }
1410
1411 wxString wxFindNextFile()
1412 {
1413     wxString result;
1414
1415     short err = noErr ;
1416
1417     while ( err == noErr )
1418     {
1419         g_iter.m_index++ ;
1420         g_iter.m_CPB.dirInfo.ioFDirIndex = g_iter.m_index;
1421         g_iter.m_CPB.dirInfo.ioDrDirID = g_iter.m_dirId;    /* we need to do this every time */
1422         err = PBGetCatInfoSync((CInfoPBPtr)&g_iter.m_CPB);
1423         if ( err != noErr )
1424             break ;
1425
1426         if ( ( g_iter.m_CPB.dirInfo.ioFlAttrib & ioDirMask) != 0 && (g_iter_flags & wxDIR) ) //  we have a directory
1427             break ;
1428
1429         if ( ( g_iter.m_CPB.dirInfo.ioFlAttrib & ioDirMask) == 0 && !(g_iter_flags & wxFILE ) )
1430             continue ;
1431
1432         // hit !
1433         break ;
1434     }
1435     if ( err != noErr )
1436     {
1437         return wxEmptyString ;
1438     }
1439     FSSpec spec ;
1440
1441     FSMakeFSSpecCompat(g_iter.m_CPB.hFileInfo.ioVRefNum,
1442                                    g_iter.m_dirId,
1443                                    g_iter.m_name,
1444                                    &spec) ;
1445
1446     return wxMacFSSpec2UnixFilename( &spec ) ;
1447 }
1448
1449 #elif defined(__WXMSW__)
1450
1451 #ifdef __WIN32__
1452     static HANDLE gs_hFileStruct = INVALID_HANDLE_VALUE;
1453     static WIN32_FIND_DATA gs_findDataStruct;
1454 #else // Win16
1455     #ifdef __BORLANDC__
1456         static struct ffblk gs_findDataStruct;
1457     #else
1458         static struct _find_t gs_findDataStruct;
1459     #endif // Borland
1460 #endif // Win32/16
1461
1462 static wxString gs_strFileSpec;
1463 static int gs_findFlags = 0;
1464
1465 wxString wxFindFirstFile(const wxChar *spec, int flags)
1466 {
1467     wxString result;
1468
1469     gs_strFileSpec = spec;
1470     gs_findFlags = flags; /* MATTHEW: [5] Remember flags */
1471
1472     // Find path only so we can concatenate found file onto path
1473     wxString path(wxPathOnly(gs_strFileSpec));
1474     if ( !path.IsEmpty() )
1475         result << path << wxT('\\');
1476
1477 #ifdef __WIN32__
1478     if ( gs_hFileStruct != INVALID_HANDLE_VALUE )
1479         FindClose(gs_hFileStruct);
1480
1481     gs_hFileStruct = ::FindFirstFile(WXSTRINGCAST spec, &gs_findDataStruct);
1482
1483     if ( gs_hFileStruct == INVALID_HANDLE_VALUE )
1484     {
1485         result.Empty();
1486
1487         return result;
1488     }
1489
1490     bool isdir = !!(gs_findDataStruct.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
1491
1492     if (isdir && !(flags & wxDIR))
1493         return wxFindNextFile();
1494     else if (!isdir && flags && !(flags & wxFILE))
1495         return wxFindNextFile();
1496
1497     result += gs_findDataStruct.cFileName;
1498
1499     return result;
1500 #else // !Win32
1501     int flag = _A_NORMAL;
1502     if (flags & wxDIR)
1503         flag = _A_SUBDIR;
1504
1505 #ifdef __BORLANDC__
1506     if (findfirst(WXSTRINGCAST spec, &gs_findDataStruct, flag) == 0)
1507 #else
1508         if (_dos_findfirst(WXSTRINGCAST spec, flag, &gs_findDataStruct) == 0)
1509 #endif
1510         {
1511             char attrib;
1512
1513 #ifdef __BORLANDC__
1514             attrib = gs_findDataStruct.ff_attrib;
1515 #else
1516             attrib = gs_findDataStruct.attrib;
1517 #endif
1518
1519             if (attrib & _A_SUBDIR) {
1520                 if (!(gs_findFlags & wxDIR))
1521                     return wxFindNextFile();
1522             } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1523                 return wxFindNextFile();
1524
1525             result +=
1526 #ifdef __BORLANDC__
1527                     gs_findDataStruct.ff_name
1528 #else
1529                     gs_findDataStruct.name
1530 #endif
1531                     ;
1532         }
1533
1534     return result;
1535 #endif // __WIN32__
1536 }
1537
1538
1539 wxString wxFindNextFile()
1540 {
1541     wxString result;
1542
1543     // Find path only so we can concatenate found file onto path
1544     wxString path(wxPathOnly(gs_strFileSpec));
1545
1546 try_again:
1547
1548 #ifdef __WIN32__
1549     if (gs_hFileStruct == INVALID_HANDLE_VALUE)
1550         return result;
1551
1552     bool success = (FindNextFile(gs_hFileStruct, &gs_findDataStruct) != 0);
1553     if (!success)
1554     {
1555         FindClose(gs_hFileStruct);
1556         gs_hFileStruct = INVALID_HANDLE_VALUE;
1557     }
1558     else
1559     {
1560         bool isdir = !!(gs_findDataStruct.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
1561
1562         if (isdir && !(gs_findFlags & wxDIR))
1563             goto try_again;
1564         else if (!isdir && gs_findFlags && !(gs_findFlags & wxFILE))
1565             goto try_again;
1566
1567         if ( !path.IsEmpty() )
1568             result << path << wxT('\\');
1569         result << gs_findDataStruct.cFileName;
1570     }
1571
1572     return result;
1573 #else // Win16
1574
1575 #ifdef __BORLANDC__
1576     if (findnext(&gs_findDataStruct) == 0)
1577 #else
1578         if (_dos_findnext(&gs_findDataStruct) == 0)
1579 #endif
1580         {
1581             /* MATTHEW: [5] Check directory flag */
1582             char attrib;
1583
1584 #ifdef __BORLANDC__
1585             attrib = gs_findDataStruct.ff_attrib;
1586 #else
1587             attrib = gs_findDataStruct.attrib;
1588 #endif
1589
1590             if (attrib & _A_SUBDIR) {
1591                 if (!(gs_findFlags & wxDIR))
1592                     goto try_again;
1593             } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1594                 goto try_again;
1595
1596
1597             result +=
1598 #ifdef __BORLANDC__
1599                       gs_findDataStruct.ff_name
1600 #else
1601                       gs_findDataStruct.name
1602 #endif
1603                       ;
1604         }
1605
1606     return result;
1607 #endif // Win32/16
1608 }
1609
1610 #elif defined(__WXPM__)
1611
1612 wxString wxFindFirstFile(const wxChar *spec, int flags)
1613 {
1614     wxString result;
1615
1616     /*
1617     // TODO: figure something out here for OS/2
1618     gs_strFileSpec = spec;
1619     gs_findFlags = flags;
1620
1621     // Find path only so we can concatenate found file onto path
1622     wxString path(wxPathOnly(gs_strFileSpec));
1623     if ( !path.IsEmpty() )
1624         result << path << wxT('\\');
1625
1626     int flag = _A_NORMAL;
1627     if (flags & wxDIR)
1628         flag = _A_SUBDIR;
1629
1630     if (_dos_findfirst(WXSTRINGCAST spec, flag, &gs_findDataStruct) == 0)
1631     {
1632         char attrib;
1633         attrib = gs_findDataStruct.attrib;
1634
1635         if (attrib & _A_SUBDIR) {
1636             if (!(gs_findFlags & wxDIR))
1637                 return wxFindNextFile();
1638         } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1639             return wxFindNextFile();
1640
1641         result += gs_findDataStruct.name;
1642     }
1643     */
1644     return result;
1645 }
1646
1647 wxString wxFindNextFile()
1648 {
1649     wxString result;
1650     // TODO:
1651     return result;
1652 }
1653
1654 #endif // Unix/Windows/OS/2
1655
1656 // Get current working directory.
1657 // If buf is NULL, allocates space using new, else
1658 // copies into buf.
1659 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1660 {
1661   if (!buf)
1662     buf = new wxChar[sz+1];
1663 #if wxUSE_UNICODE
1664   char *cbuf = new char[sz+1];
1665 #ifdef _MSC_VER
1666   if (_getcwd(cbuf, sz) == NULL) {
1667 #elif defined(__WXMAC__) && !defined(__UNIX__)
1668     enum
1669     {
1670         SFSaveDisk = 0x214, CurDirStore = 0x398
1671     };
1672     FSSpec cwdSpec ;
1673
1674     FSMakeFSSpec( - *(short *) SFSaveDisk , *(long *) CurDirStore , NULL , &cwdSpec ) ;
1675     wxString res = wxMacFSSpec2UnixFilename( &cwdSpec ) ;
1676     strcpy( buf , res ) ;
1677     if (0) {
1678 #else
1679   if (getcwd(cbuf, sz) == NULL) {
1680 #endif
1681     delete [] cbuf;
1682 #else // wxUnicode
1683 #ifdef _MSC_VER
1684   if (_getcwd(buf, sz) == NULL) {
1685 #elif defined(__WXMAC__) && !defined(__UNIX__)
1686         FSSpec cwdSpec ;
1687         FCBPBRec pb;
1688         OSErr error;
1689         Str255  fileName ;
1690         pb.ioNamePtr = (StringPtr) &fileName;
1691         pb.ioVRefNum = 0;
1692         pb.ioRefNum = LMGetCurApRefNum();
1693         pb.ioFCBIndx = 0;
1694         error = PBGetFCBInfoSync(&pb);
1695         if ( error == noErr )
1696         {
1697                 cwdSpec.vRefNum = pb.ioFCBVRefNum;
1698                 cwdSpec.parID = pb.ioFCBParID;
1699                 cwdSpec.name[0] = 0 ;
1700                 wxString res = wxMacFSSpec2UnixFilename( &cwdSpec ) ;
1701
1702                 strcpy( buf , res ) ;
1703                 buf[res.length()-1]=0 ;
1704         }
1705         else
1706                 buf[0] = 0 ;
1707         /*
1708         this version will not always give back the application directory on mac
1709         enum
1710         {
1711                 SFSaveDisk = 0x214, CurDirStore = 0x398
1712         };
1713         FSSpec cwdSpec ;
1714
1715         FSMakeFSSpec( - *(short *) SFSaveDisk , *(long *) CurDirStore , NULL , &cwdSpec ) ;
1716         wxString res = wxMacFSSpec2UnixFilename( &cwdSpec ) ;
1717         strcpy( buf , res ) ;
1718         */
1719         if (0) {
1720 #elif(__VISAGECPP__)
1721     APIRET rc;
1722     rc = ::DosQueryCurrentDir( 0 // current drive
1723                               ,buf
1724                               ,(PULONG)&sz
1725                              );
1726     if (rc != 0) {
1727 #else
1728   if (getcwd(buf, sz) == NULL) {
1729 #endif
1730 #endif
1731     buf[0] = wxT('.');
1732     buf[1] = wxT('\0');
1733   }
1734 #if wxUSE_UNICODE
1735   else {
1736     wxConvFile.MB2WC(buf, cbuf, sz);
1737     delete [] cbuf;
1738   }
1739 #endif
1740   return buf;
1741 }
1742
1743 wxString wxGetCwd()
1744 {
1745     static const size_t maxPathLen = 1024;
1746
1747     wxString str;
1748     wxGetWorkingDirectory(str.GetWriteBuf(maxPathLen), maxPathLen);
1749     str.UngetWriteBuf();
1750
1751     return str;
1752 }
1753
1754 bool wxSetWorkingDirectory(const wxString& d)
1755 {
1756 #if defined( __UNIX__ ) || defined( __WXMAC__ )
1757   return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1758 #elif defined(__WXPM__)
1759   return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1760 #elif defined(__WINDOWS__)
1761
1762 #ifdef __WIN32__
1763   return (bool)(SetCurrentDirectory(d) != 0);
1764 #else
1765   // Must change drive, too.
1766   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1767   if (isDriveSpec)
1768   {
1769     wxChar firstChar = d[0];
1770
1771     // To upper case
1772     if (firstChar > 90)
1773       firstChar = firstChar - 32;
1774
1775     // To a drive number
1776     unsigned int driveNo = firstChar - 64;
1777     if (driveNo > 0)
1778     {
1779        unsigned int noDrives;
1780        _dos_setdrive(driveNo, &noDrives);
1781     }
1782   }
1783   bool success = (chdir(WXSTRINGCAST d) == 0);
1784
1785   return success;
1786 #endif
1787
1788 #endif
1789 }
1790
1791 // Get the OS directory if appropriate (such as the Windows directory).
1792 // On non-Windows platform, probably just return the empty string.
1793 wxString wxGetOSDirectory()
1794 {
1795 #ifdef __WINDOWS__
1796     wxChar buf[256];
1797     GetWindowsDirectory(buf, 256);
1798     return wxString(buf);
1799 #else
1800     return wxEmptyString;
1801 #endif
1802 }
1803
1804 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1805 {
1806   size_t len = wxStrlen(pszFileName);
1807   if ( len == 0 )
1808     return FALSE;
1809   else
1810     return wxIsPathSeparator(pszFileName[len - 1]);
1811 }
1812
1813 // find a file in a list of directories, returns false if not found
1814 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1815 {
1816     // we assume that it's not empty
1817     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1818                  _T("empty file name in wxFindFileInPath"));
1819
1820     // skip path separator in the beginning of the file name if present
1821     if ( wxIsPathSeparator(*pszFile) )
1822         pszFile++;
1823
1824     // copy the path (strtok will modify it)
1825     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1826     wxStrcpy(szPath, pszPath);
1827
1828     wxString strFile;
1829     wxChar *pc, *save_ptr;
1830     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1831           pc != NULL;
1832           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1833     {
1834         // search for the file in this directory
1835         strFile = pc;
1836         if ( !wxEndsWithPathSeparator(pc) )
1837             strFile += wxFILE_SEP_PATH;
1838         strFile += pszFile;
1839
1840         if ( FileExists(strFile) ) {
1841             *pStr = strFile;
1842             break;
1843         }
1844     }
1845
1846     // suppress warning about unused variable save_ptr when wxStrtok() is a
1847     // macro which throws away its third argument
1848     save_ptr = pc;
1849
1850     delete [] szPath;
1851
1852     return pc != NULL;  // if true => we breaked from the loop
1853 }
1854
1855 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1856                              wxString *pstrPath,
1857                              wxString *pstrName,
1858                              wxString *pstrExt)
1859 {
1860     // it can be empty, but it shouldn't be NULL
1861     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1862
1863     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1864 }
1865
1866 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1867 {
1868     wxStructStat buf;
1869
1870     wxStat(filename.fn_str(), &buf);
1871     return buf.st_mtime;
1872 }
1873
1874
1875 //------------------------------------------------------------------------
1876 // wild character routines
1877 //------------------------------------------------------------------------
1878
1879 bool wxIsWild( const wxString& pattern )
1880 {
1881   wxString tmp = pattern;
1882   wxChar *pat = WXSTRINGCAST(tmp);
1883     while (*pat) {
1884         switch (*pat++) {
1885         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1886             return TRUE;
1887         case wxT('\\'):
1888             if (!*pat++)
1889                 return FALSE;
1890         }
1891     }
1892     return FALSE;
1893 };
1894
1895 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1896
1897 #if defined(HAVE_FNMATCH_H)
1898 {
1899 // this probably won't work well for multibyte chars in Unicode mode?
1900    if(dot_special)
1901       return fnmatch(pat.fn_str(), text.fn_str(), FNM_PERIOD) == 0;
1902    else
1903       return fnmatch(pat.fn_str(), text.fn_str(), 0) == 0;
1904 }
1905 #else
1906
1907 // #pragma error Broken implementation of wxMatchWild() -- needs fixing!
1908
1909    /*
1910     * WARNING: this code is broken!
1911     */
1912 {
1913   wxString tmp1 = pat;
1914   wxChar *pattern = WXSTRINGCAST(tmp1);
1915   wxString tmp2 = text;
1916   wxChar *str = WXSTRINGCAST(tmp2);
1917     wxChar c;
1918     wxChar *cp;
1919     bool done = FALSE, ret_code, ok;
1920     // Below is for vi fans
1921     const wxChar OB = wxT('{'), CB = wxT('}');
1922
1923     // dot_special means '.' only matches '.'
1924     if (dot_special && *str == wxT('.') && *pattern != *str)
1925         return FALSE;
1926
1927     while ((*pattern != wxT('\0')) && (!done)
1928     && (((*str==wxT('\0'))&&((*pattern==OB)||(*pattern==wxT('*'))))||(*str!=wxT('\0')))) {
1929         switch (*pattern) {
1930         case wxT('\\'):
1931             pattern++;
1932             if (*pattern != wxT('\0'))
1933                 pattern++;
1934             break;
1935         case wxT('*'):
1936             pattern++;
1937             ret_code = FALSE;
1938             while ((*str!=wxT('\0'))
1939             && ((ret_code=wxMatchWild(pattern, str++, FALSE)) == 0))
1940                 /*loop*/;
1941             if (ret_code) {
1942                 while (*str != wxT('\0'))
1943                     str++;
1944                 while (*pattern != wxT('\0'))
1945                     pattern++;
1946             }
1947             break;
1948         case wxT('['):
1949             pattern++;
1950           repeat:
1951             if ((*pattern == wxT('\0')) || (*pattern == wxT(']'))) {
1952                 done = TRUE;
1953                 break;
1954             }
1955             if (*pattern == wxT('\\')) {
1956                 pattern++;
1957                 if (*pattern == wxT('\0')) {
1958                     done = TRUE;
1959                     break;
1960                 }
1961             }
1962             if (*(pattern + 1) == wxT('-')) {
1963                 c = *pattern;
1964                 pattern += 2;
1965                 if (*pattern == wxT(']')) {
1966                     done = TRUE;
1967                     break;
1968                 }
1969                 if (*pattern == wxT('\\')) {
1970                     pattern++;
1971                     if (*pattern == wxT('\0')) {
1972                         done = TRUE;
1973                         break;
1974                     }
1975                 }
1976                 if ((*str < c) || (*str > *pattern)) {
1977                     pattern++;
1978                     goto repeat;
1979                 }
1980             } else if (*pattern != *str) {
1981                 pattern++;
1982                 goto repeat;
1983             }
1984             pattern++;
1985             while ((*pattern != wxT(']')) && (*pattern != wxT('\0'))) {
1986                 if ((*pattern == wxT('\\')) && (*(pattern + 1) != wxT('\0')))
1987                     pattern++;
1988                 pattern++;
1989             }
1990             if (*pattern != wxT('\0')) {
1991                 pattern++, str++;
1992             }
1993             break;
1994         case wxT('?'):
1995             pattern++;
1996             str++;
1997             break;
1998         case OB:
1999             pattern++;
2000             while ((*pattern != CB) && (*pattern != wxT('\0'))) {
2001                 cp = str;
2002                 ok = TRUE;
2003                 while (ok && (*cp != wxT('\0')) && (*pattern != wxT('\0'))
2004                 &&  (*pattern != wxT(',')) && (*pattern != CB)) {
2005                     if (*pattern == wxT('\\'))
2006                         pattern++;
2007                     ok = (*pattern++ == *cp++);
2008                 }
2009                 if (*pattern == wxT('\0')) {
2010                     ok = FALSE;
2011                     done = TRUE;
2012                     break;
2013                 } else if (ok) {
2014                     str = cp;
2015                     while ((*pattern != CB) && (*pattern != wxT('\0'))) {
2016                         if (*++pattern == wxT('\\')) {
2017                             if (*++pattern == CB)
2018                                 pattern++;
2019                         }
2020                     }
2021                 } else {
2022                     while (*pattern!=CB && *pattern!=wxT(',') && *pattern!=wxT('\0')) {
2023                         if (*++pattern == wxT('\\')) {
2024                             if (*++pattern == CB || *pattern == wxT(','))
2025                                 pattern++;
2026                         }
2027                     }
2028                 }
2029                 if (*pattern != wxT('\0'))
2030                     pattern++;
2031             }
2032             break;
2033         default:
2034             if (*str == *pattern) {
2035                 str++, pattern++;
2036             } else {
2037                 done = TRUE;
2038             }
2039         }
2040     }
2041     while (*pattern == wxT('*'))
2042         pattern++;
2043     return ((*str == wxT('\0')) && (*pattern == wxT('\0')));
2044 };
2045
2046 #endif
2047
2048 #ifdef __VISUALC__
2049     #pragma warning(default:4706)   // assignment within conditional expression
2050 #endif // VC++