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     #include <wchar.h>
  82     #ifndef __TWIN32__
  83         #include <sys/unistd.h>
  84     #endif
  85 #endif
  86
  87 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  88                     // this (3.1 I believe) and how to test for it.
  89                     // If this works for Borland 4.0 as well, then no worries.
  90     #include <dir.h>
  91 #endif
  92
  93 #ifdef __SALFORDC__
  94     #include <dir.h>
  95     #include <unix.h>
  96 #endif
  97
  98 #include "wx/setup.h"
  99 #include "wx/log.h"
 100
 101 // No, Cygwin doesn't appear to have fnmatch.h after all.
 102 #if defined(HAVE_FNMATCH_H)
 103     #include "fnmatch.h"
 104 #endif
 105
 106 #ifdef __WINDOWS__
 107     #include <windows.h>
 108 #endif
 109
 110 // ----------------------------------------------------------------------------
 111 // constants
 112 // ----------------------------------------------------------------------------
 113
 114 #define _MAXPATHLEN 500
 115
 116 extern wxChar *wxBuffer;
 117
 118 #if defined(__WXMAC__) && !defined(__UNIX__)
 119     #include "morefile.h"
 120     #include "moreextr.h"
 121     #include "fullpath.h"
 122     #include "fspcompa.h"
 123 #endif
 124
 125 IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
 126
 127 // ----------------------------------------------------------------------------
 128 // private globals
 129 // ----------------------------------------------------------------------------
 130
 131 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
 132
 133 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 134 //
 135 // VisualAge C++ V4.0 cannot have any external linkage const decs
 136 // in headers included by more than one primary source
 137 //
 138 const off_t wxInvalidOffset = (off_t)-1;
 139 #endif
 140
 141 // ----------------------------------------------------------------------------
 142 // macros
 143 // ----------------------------------------------------------------------------
 144
 145 // we need to translate Mac filenames before passing them to OS functions
 146     #define OS_FILENAME(s) (s.fn_str())
 147
 148 // ============================================================================
 149 // implementation
 150 // ============================================================================
 151
 152 void wxPathList::Add (const wxString& path)
 153 {
 154     wxStringList::Add (WXSTRINGCAST path);
 155 }
 156
 157 // Add paths e.g. from the PATH environment variable
 158 void wxPathList::AddEnvList (const wxString& envVariable)
 159 {
 160   static const wxChar PATH_TOKS[] =
 161 #ifdef __WINDOWS__
 162         wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
 163 #else
 164         wxT(" :;");
 165 #endif
 166
 167   wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
 168   if (val && *val)
 169     {
 170       wxChar *s = copystring (val);
 171       wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
 172
 173       if (token)
 174       {
 175           Add (copystring (token));
 176           while (token)
 177           {
 178               if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
 179                   Add (wxString(token));
 180           }
 181       }
 182
 183       // suppress warning about unused variable save_ptr when wxStrtok() is a
 184       // macro which throws away its third argument
 185       save_ptr = token;
 186
 187       delete [] s;
 188     }
 189 }
 190
 191 // Given a full filename (with path), ensure that that file can
 192 // be accessed again USING FILENAME ONLY by adding the path
 193 // to the list if not already there.
 194 void wxPathList::EnsureFileAccessible (const wxString& path)
 195 {
 196     wxString path_only(wxPathOnly(path));
 197     if ( !path_only.IsEmpty() )
 198     {
 199         if ( !Member(path_only) )
 200             Add(path_only);
 201     }
 202 }
 203
 204 bool wxPathList::Member (const wxString& path)
 205 {
 206   for (wxNode * node = First (); node != NULL; node = node->Next ())
 207   {
 208       wxString path2((wxChar *) node->Data ());
 209       if (
 210 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
 211       // Case INDEPENDENT
 212           path.CompareTo (path2, wxString::ignoreCase) == 0
 213 #else
 214       // Case sensitive File System
 215           path.CompareTo (path2) == 0
 216 #endif
 217         )
 218         return TRUE;
 219   }
 220   return FALSE;
 221 }
 222
 223 wxString wxPathList::FindValidPath (const wxString& file)
 224 {
 225   if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
 226     return wxString(wxFileFunctionsBuffer);
 227
 228   wxChar buf[_MAXPATHLEN];
 229   wxStrcpy(buf, wxFileFunctionsBuffer);
 230
 231   wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
 232   filename = IsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
 233
 234   for (wxNode * node = First (); node; node = node->Next ())
 235     {
 236       wxChar *path = (wxChar *) node->Data ();
 237       wxStrcpy (wxFileFunctionsBuffer, path);
 238       wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
 239       if (ch != wxT('\\') && ch != wxT('/'))
 240         wxStrcat (wxFileFunctionsBuffer, wxT("/"));
 241       wxStrcat (wxFileFunctionsBuffer, filename);
 242 #ifdef __WINDOWS__
 243       Unix2DosFilename (wxFileFunctionsBuffer);
 244 #endif
 245       if (wxFileExists (wxFileFunctionsBuffer))
 246       {
 247         return wxString(wxFileFunctionsBuffer);        // Found!
 248       }
 249     }                                // for()
 250
 251   return wxString(wxT(""));                    // Not found
 252 }
 253
 254 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
 255 {
 256     wxString f = FindValidPath(file);
 257     if ( wxIsAbsolutePath(f) )
 258         return f;
 259
 260     wxString buf;
 261     wxGetWorkingDirectory(buf.GetWriteBuf(_MAXPATHLEN), _MAXPATHLEN - 1);
 262     buf.UngetWriteBuf();
 263     if ( !wxEndsWithPathSeparator(buf) )
 264     {
 265         buf += wxFILE_SEP_PATH;
 266     }
 267     buf += f;
 268
 269     return buf;
 270 }
 271
 272 bool
 273 wxFileExists (const wxString& filename)
 274 {
 275 #ifdef __WINDOWS__
 276     // GetFileAttributes can copy with network paths
 277     DWORD ret = GetFileAttributes(filename);
 278     DWORD isDir = (ret & FILE_ATTRIBUTE_DIRECTORY);
 279     return ((ret != 0xffffffff) && (isDir == 0));
 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 #ifdef __WXMAC__
 293     if (filename != wxT(""))
 294     {
 295         // This seems wrong to me, but there is no fix. since
 296         // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
 297         // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
 298
 299         if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
 300             return TRUE ;
 301     }
 302     return FALSE ;
 303 #else
 304   if (filename != wxT(""))
 305     {
 306       if (filename[0] == wxT('/')
 307 #ifdef __VMS__
 308       || (filename[0] == wxT('[') && filename[1] != wxT('.'))
 309 #endif
 310 #ifdef __WINDOWS__
 311       /* MSDOS */
 312       || filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':'))
 313 #endif
 314         )
 315         return TRUE;
 316     }
 317   return FALSE;
 318 #endif
 319 }
 320
 321 /*
 322  * Strip off any extension (dot something) from end of file,
 323  * IF one exists. Inserts zero into buffer.
 324  *
 325  */
 326
 327 void wxStripExtension(wxChar *buffer)
 328 {
 329   int len = wxStrlen(buffer);
 330   int i = len-1;
 331   while (i > 0)
 332   {
 333     if (buffer[i] == wxT('.'))
 334     {
 335       buffer[i] = 0;
 336       break;
 337     }
 338     i --;
 339   }
 340 }
 341
 342 void wxStripExtension(wxString& buffer)
 343 {
 344   size_t len = buffer.Length();
 345   size_t i = len-1;
 346   while (i > 0)
 347   {
 348     if (buffer.GetChar(i) == wxT('.'))
 349     {
 350       buffer = buffer.Left(i);
 351       break;
 352     }
 353     i --;
 354   }
 355 }
 356
 357 // Destructive removal of /./ and /../ stuff
 358 wxChar *wxRealPath (wxChar *path)
 359 {
 360 #ifdef __WXMSW__
 361   static const wxChar SEP = wxT('\\');
 362   Unix2DosFilename(path);
 363 #else
 364   static const wxChar SEP = wxT('/');
 365 #endif
 366   if (path[0] && path[1]) {
 367     /* MATTHEW: special case "/./x" */
 368     wxChar *p;
 369     if (path[2] == SEP && path[1] == wxT('.'))
 370       p = &path[0];
 371     else
 372       p = &path[2];
 373     for (; *p; p++)
 374       {
 375         if (*p == SEP)
 376           {
 377             if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
 378               {
 379                 wxChar *q;
 380                 for (q = p - 1; q >= path && *q != SEP; q--);
 381                 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
 382                     && (q - 1 <= path || q[-1] != SEP))
 383                   {
 384                     wxStrcpy (q, p + 3);
 385                     if (path[0] == wxT('\0'))
 386                       {
 387                         path[0] = SEP;
 388                         path[1] = wxT('\0');
 389                       }
 390 #ifdef __WXMSW__
 391                     /* Check that path[2] is NULL! */
 392                     else if (path[1] == wxT(':') && !path[2])
 393                       {
 394                         path[2] = SEP;
 395                         path[3] = wxT('\0');
 396                       }
 397 #endif
 398                     p = q - 1;
 399                   }
 400               }
 401             else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
 402               wxStrcpy (p, p + 2);
 403           }
 404       }
 405   }
 406   return path;
 407 }
 408
 409 // Must be destroyed
 410 wxChar *wxCopyAbsolutePath(const wxString& filename)
 411 {
 412   if (filename == wxT(""))
 413     return (wxChar *) NULL;
 414
 415   if (! IsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
 416     wxChar  buf[_MAXPATHLEN];
 417     buf[0] = wxT('\0');
 418     wxGetWorkingDirectory(buf, WXSIZEOF(buf));
 419     wxChar ch = buf[wxStrlen(buf) - 1];
 420 #ifdef __WXMSW__
 421     if (ch != wxT('\\') && ch != wxT('/'))
 422         wxStrcat(buf, wxT("\\"));
 423 #else
 424     if (ch != wxT('/'))
 425         wxStrcat(buf, wxT("/"));
 426 #endif
 427     wxStrcat(buf, wxFileFunctionsBuffer);
 428     return copystring( wxRealPath(buf) );
 429   }
 430   return copystring( wxFileFunctionsBuffer );
 431 }
 432
 433 /*-
 434  Handles:
 435    ~/ => home dir
 436    ~user/ => user's home dir
 437    If the environment variable a = "foo" and b = "bar" then:
 438    Unix:
 439         $a        =>        foo
 440         $a$b        =>        foobar
 441         $a.c        =>        foo.c
 442         xxx$a        =>        xxxfoo
 443         ${a}!        =>        foo!
 444         $(b)!        =>        bar!
 445         \$a        =>        \$a
 446    MSDOS:
 447         $a        ==>        $a
 448         $(a)        ==>        foo
 449         $(a)$b        ==>        foo$b
 450         $(a)$(b)==>        foobar
 451         test.$$        ==>        test.$$
 452  */
 453
 454 /* input name in name, pathname output to buf. */
 455
 456 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
 457 {
 458     register wxChar *d, *s, *nm;
 459     wxChar          lnm[_MAXPATHLEN];
 460     int             q;
 461
 462     // Some compilers don't like this line.
 463 //    const wxChar    trimchars[] = wxT("\n \t");
 464
 465     wxChar      trimchars[4];
 466     trimchars[0] = wxT('\n');
 467     trimchars[1] = wxT(' ');
 468     trimchars[2] = wxT('\t');
 469     trimchars[3] = 0;
 470
 471 #ifdef __WXMSW__
 472      const wxChar     SEP = wxT('\\');
 473 #else
 474      const wxChar     SEP = wxT('/');
 475 #endif
 476     buf[0] = wxT('\0');
 477     if (name == NULL || *name == wxT('\0'))
 478         return buf;
 479     nm = copystring(name); // Make a scratch copy
 480     wxChar *nm_tmp = nm;
 481
 482     /* Skip leading whitespace and cr */
 483     while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
 484         nm++;
 485     /* And strip off trailing whitespace and cr */
 486     s = nm + (q = wxStrlen(nm)) - 1;
 487     while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
 488         *s = wxT('\0');
 489
 490     s = nm;
 491     d = lnm;
 492 #ifdef __WXMSW__
 493     q = FALSE;
 494 #else
 495     q = nm[0] == wxT('\\') && nm[1] == wxT('~');
 496 #endif
 497
 498     /* Expand inline environment variables */
 499 #ifdef __VISAGECPP__
 500     while (*d)
 501     {
 502       *d++ = *s;
 503       if(*s == wxT('\\'))
 504       {
 505         *(d - 1) = *++s;
 506         if (*d)
 507         {
 508           s++;
 509           continue;
 510         }
 511         else
 512            break;
 513       }
 514       else
 515 #else
 516     while ((*d++ = *s) != 0) {
 517 #  ifndef __WXMSW__
 518         if (*s == wxT('\\')) {
 519             if ((*(d - 1) = *++s)) {
 520                 s++;
 521                 continue;
 522             } else
 523                 break;
 524         } else
 525 #  endif
 526 #endif
 527 #ifdef __WXMSW__
 528         if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
 529 #else
 530         if (*s++ == wxT('$'))
 531 #endif
 532         {
 533             register wxChar  *start = d;
 534             register int     braces = (*s == wxT('{') || *s == wxT('('));
 535             register wxChar  *value;
 536             while ((*d++ = *s) != 0)
 537                 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
 538                     break;
 539                 else
 540                     s++;
 541             *--d = 0;
 542             value = wxGetenv(braces ? start + 1 : start);
 543             if (value) {
 544                 for ((d = start - 1); (*d++ = *value++) != 0;);
 545                 d--;
 546                 if (braces && *s)
 547                     s++;
 548             }
 549         }
 550     }
 551
 552     /* Expand ~ and ~user */
 553     nm = lnm;
 554     s = wxT("");
 555     if (nm[0] == wxT('~') && !q)
 556     {
 557         /* prefix ~ */
 558         if (nm[1] == SEP || nm[1] == 0)
 559         {        /* ~/filename */
 560         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 561             if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
 562                 if (*++nm)
 563                     nm++;
 564             }
 565         } else
 566         {                /* ~user/filename */
 567             register wxChar  *nnm;
 568             register wxChar  *home;
 569             for (s = nm; *s && *s != SEP; s++);
 570             int was_sep; /* MATTHEW: Was there a separator, or NULL? */
 571             was_sep = (*s == SEP);
 572             nnm = *s ? s + 1 : s;
 573             *s = 0;
 574         // FIXME: wxGetUserHome could return temporary storage in Unicode mode
 575             if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
 576                if (was_sep) /* replace only if it was there: */
 577                    *s = SEP;
 578                 s = wxT("");
 579             } else {
 580                 nm = nnm;
 581                 s = home;
 582             }
 583         }
 584     }
 585
 586     d = buf;
 587     if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
 588         /* Copy home dir */
 589         while (wxT('\0') != (*d++ = *s++))
 590           /* loop */;
 591         // Handle root home
 592         if (d - 1 > buf && *(d - 2) != SEP)
 593           *(d - 1) = SEP;
 594     }
 595     s = nm;
 596     while ((*d++ = *s++) != 0);
 597     delete[] nm_tmp; // clean up alloc
 598     /* Now clean up the buffer */
 599     return wxRealPath(buf);
 600 }
 601
 602 /* Contract Paths to be build upon an environment variable
 603    component:
 604
 605    example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
 606
 607    The call wxExpandPath can convert these back!
 608  */
 609 wxChar *
 610 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
 611 {
 612   static wxChar dest[_MAXPATHLEN];
 613
 614   if (filename == wxT(""))
 615     return (wxChar *) NULL;
 616
 617   wxStrcpy (dest, WXSTRINGCAST filename);
 618 #ifdef __WXMSW__
 619   Unix2DosFilename(dest);
 620 #endif
 621
 622   // Handle environment
 623   const wxChar *val = (const wxChar *) NULL;
 624   wxChar *tcp = (wxChar *) NULL;
 625   if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
 626      (tcp = wxStrstr (dest, val)) != NULL)
 627     {
 628         wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
 629         *tcp++ = wxT('$');
 630         *tcp++ = wxT('{');
 631         wxStrcpy (tcp, WXSTRINGCAST envname);
 632         wxStrcat (tcp, wxT("}"));
 633         wxStrcat (tcp, wxFileFunctionsBuffer);
 634     }
 635
 636   // Handle User's home (ignore root homes!)
 637   size_t len = 0;
 638   if ((val = wxGetUserHome (user)) != NULL &&
 639       (len = wxStrlen(val)) > 2 &&
 640       wxStrncmp(dest, val, len) == 0)
 641     {
 642       wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
 643       if (user != wxT(""))
 644              wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
 645 #ifdef __WXMSW__
 646 //      strcat(wxFileFunctionsBuffer, "\\");
 647 #else
 648 //      strcat(wxFileFunctionsBuffer, "/");
 649 #endif
 650       wxStrcat(wxFileFunctionsBuffer, dest + len);
 651       wxStrcpy (dest, wxFileFunctionsBuffer);
 652     }
 653
 654   return dest;
 655 }
 656
 657 // Return just the filename, not the path
 658 // (basename)
 659 wxChar *wxFileNameFromPath (wxChar *path)
 660 {
 661   if (path)
 662     {
 663       register wxChar *tcp;
 664
 665       tcp = path + wxStrlen (path);
 666       while (--tcp >= path)
 667         {
 668 #ifdef __WXMAC__
 669           if (*tcp == wxT(':') )
 670 #else
 671           if (*tcp == wxT('/') || *tcp == wxT('\\')
 672 #ifdef __VMS__
 673      || *tcp == wxT(':') || *tcp == wxT(']'))
 674 #else
 675      )
 676 #endif
 677 #endif
 678             return tcp + 1;
 679         }                        /* while */
 680 #if defined(__WXMSW__) || defined(__WXPM__)
 681       if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 682         return path + 2;
 683 #endif
 684     }
 685   return path;
 686 }
 687
 688 wxString wxFileNameFromPath (const wxString& path1)
 689 {
 690   if (path1 != wxT(""))
 691   {
 692
 693       wxChar *path = WXSTRINGCAST path1 ;
 694       register wxChar *tcp;
 695
 696       tcp = path + wxStrlen (path);
 697       while (--tcp >= path)
 698           {
 699 #ifdef __WXMAC__
 700            if (*tcp == wxT(':') )
 701 #else
 702             if (*tcp == wxT('/') || *tcp == wxT('\\')
 703 #ifdef __VMS__
 704         || *tcp == wxT(':') || *tcp == wxT(']'))
 705 #else
 706         )
 707 #endif
 708 #endif
 709                 return wxString(tcp + 1);
 710             }                        /* while */
 711 #if defined(__WXMSW__) || defined(__WXPM__)
 712       if (wxIsalpha (*path) && *(path + 1) == wxT(':'))
 713             return wxString(path + 2);
 714 #endif
 715     }
 716   // Yes, this should return the path, not an empty string, otherwise
 717   // we get "thing.txt" -> "".
 718   return path1;
 719 }
 720
 721 // Return just the directory, or NULL if no directory
 722 wxChar *
 723 wxPathOnly (wxChar *path)
 724 {
 725   if (path && *path)
 726     {
 727       static wxChar buf[_MAXPATHLEN];
 728
 729       // Local copy
 730       wxStrcpy (buf, path);
 731
 732       int l = wxStrlen(path);
 733       bool done = FALSE;
 734
 735       int i = l - 1;
 736
 737       // Search backward for a backward or forward slash
 738       while (!done && i > -1)
 739       {
 740         // ] is for VMS
 741 #ifdef __WXMAC__
 742         if (path[i] == wxT(':') )
 743 #else
 744         if (path[i] == wxT('/') || path[i] == wxT('\\') || path[i] == wxT(']'))
 745 #endif
 746         {
 747           done = TRUE;
 748 #ifdef __VMS__
 749            if ( path[i] == wxT(']') )
 750              buf[i+1] = 0;
 751            else
 752 #endif
 753           buf[i] = 0;
 754
 755           return buf;
 756         }
 757         else i --;
 758       }
 759
 760 #if defined(__WXMSW__) || defined(__WXPM__)
 761       // Try Drive specifier
 762       if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 763         {
 764           // A:junk --> A:. (since A:.\junk Not A:\junk)
 765           buf[2] = wxT('.');
 766           buf[3] = wxT('\0');
 767           return buf;
 768         }
 769 #endif
 770     }
 771
 772   return (wxChar *) NULL;
 773 }
 774
 775 // Return just the directory, or NULL if no directory
 776 wxString wxPathOnly (const wxString& path)
 777 {
 778   if (path != wxT(""))
 779     {
 780       wxChar buf[_MAXPATHLEN];
 781
 782       // Local copy
 783       wxStrcpy (buf, WXSTRINGCAST path);
 784
 785       int l = path.Length();
 786       bool done = FALSE;
 787
 788       int i = l - 1;
 789
 790       // Search backward for a backward or forward slash
 791       while (!done && i > -1)
 792       {
 793         // ] is for VMS
 794 #ifdef __WXMAC__
 795         if (path[i] == wxT(':') )
 796 #else
 797         if (path[i] == wxT('/') || path[i] == wxT('\\') || path[i] == wxT(']'))
 798 #endif
 799         {
 800           done = TRUE;
 801 #ifdef __VMS__
 802            if ( path[i] == wxT(']') )
 803              buf[i+1] = 0;
 804            else
 805 #endif
 806           buf[i] = 0;
 807
 808           return wxString(buf);
 809         }
 810         else i --;
 811       }
 812
 813 #if defined(__WXMSW__) || defined(__WXPM__)
 814       // Try Drive specifier
 815       if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
 816         {
 817           // A:junk --> A:. (since A:.\junk Not A:\junk)
 818           buf[2] = wxT('.');
 819           buf[3] = wxT('\0');
 820           return wxString(buf);
 821         }
 822 #endif
 823     }
 824
 825   return wxString(wxT(""));
 826 }
 827
 828 // Utility for converting delimiters in DOS filenames to UNIX style
 829 // and back again - or we get nasty problems with delimiters.
 830 // Also, convert to lower case, since case is significant in UNIX.
 831
 832 #if defined(__WXMAC__) && !defined(__UNIX__)
 833 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
 834 {
 835     Handle    myPath ;
 836     short     length ;
 837
 838     FSpGetFullPath( spec , &length , &myPath ) ;
 839     ::SetHandleSize( myPath , length + 1 ) ;
 840     ::HLock( myPath ) ;
 841     (*myPath)[length] = 0 ;
 842     if ( length > 0 && (*myPath)[length-1] ==':' )
 843         (*myPath)[length-1] = 0 ;
 844
 845     wxString result(     (char*) *myPath ) ;
 846     ::HUnlock( myPath ) ;
 847     ::DisposeHandle( myPath ) ;
 848     return result ;
 849 }
 850
 851 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
 852 {
 853     FSpLocationFromFullPath( strlen(path ) , path , spec ) ;
 854 }
 855
 856 static char sMacFileNameConversion[ 1000 ] ;
 857
 858 wxString wxMac2UnixFilename (const char *str)
 859 {
 860     char *s = sMacFileNameConversion ;
 861     strcpy( s , str ) ;
 862   if (s)
 863   {
 864     memmove( s+1 , s ,strlen( s ) + 1) ;
 865     if ( *s == ':' )
 866             *s = '.' ;
 867     else
 868             *s = '/' ;
 869
 870     while (*s)
 871     {
 872             if (*s == ':')
 873               *s = '/';
 874             else
 875               *s = wxTolower (*s);        // Case INDEPENDENT
 876             s++;
 877     }
 878   }
 879   return wxString (sMacFileNameConversion) ;
 880 }
 881
 882 wxString wxUnix2MacFilename (const char *str)
 883 {
 884     char *s = sMacFileNameConversion ;
 885     strcpy( s , str ) ;
 886   if (s)
 887   {
 888     if ( *s == '.' )
 889     {
 890       // relative path , since it goes on with slash which is translated to a :
 891       memmove( s , s+1 ,strlen( s ) ) ;
 892     }
 893     else if ( *s == '/' )
 894     {
 895       // absolute path -> on mac just start with the drive name
 896       memmove( s , s+1 ,strlen( s ) ) ;
 897     }
 898     else
 899     {
 900       wxASSERT_MSG( 1 , "unkown path beginning" ) ;
 901     }
 902     while (*s)
 903     {
 904       if (*s == '/' || *s == '\\')
 905       {
 906           // convert any back-directory situations
 907           if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
 908           {
 909           *s = ':';
 910                 memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
 911           }
 912           else
 913           *s = ':';
 914       }
 915
 916       s++ ;
 917     }
 918   }
 919   return wxString (sMacFileNameConversion) ;
 920 }
 921
 922 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
 923 {
 924     return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
 925 }
 926
 927 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
 928 {
 929     wxString var = wxUnix2MacFilename( path ) ;
 930     wxMacFilename2FSSpec( var , spec ) ;
 931 }
 932
 933 #endif
 934 void
 935 wxDos2UnixFilename (char *s)
 936 {
 937   if (s)
 938     while (*s)
 939       {
 940         if (*s == '\\')
 941           *s = '/';
 942 #ifdef __WXMSW__
 943         else
 944           *s = wxTolower (*s);        // Case INDEPENDENT
 945 #endif
 946         s++;
 947       }
 948 }
 949
 950 void
 951 #if defined(__WXMSW__) || defined(__WXPM__)
 952 wxUnix2DosFilename (wxChar *s)
 953 #else
 954 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
 955 #endif
 956 {
 957 // Yes, I really mean this to happen under DOS only! JACS
 958 #if defined(__WXMSW__) || defined(__WXPM__)
 959   if (s)
 960     while (*s)
 961       {
 962         if (*s == wxT('/'))
 963           *s = wxT('\\');
 964         s++;
 965       }
 966 #endif
 967 }
 968
 969 // Concatenate two files to form third
 970 bool
 971 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
 972 {
 973   wxString outfile;
 974   if ( !wxGetTempFileName("cat", outfile) )
 975       return FALSE;
 976
 977   FILE *fp1 = (FILE *) NULL;
 978   FILE *fp2 = (FILE *) NULL;
 979   FILE *fp3 = (FILE *) NULL;
 980   // Open the inputs and outputs
 981   if ((fp1 = wxFopen (OS_FILENAME( file1 ), wxT("rb"))) == NULL ||
 982       (fp2 = wxFopen (OS_FILENAME( file2 ), wxT("rb"))) == NULL ||
 983       (fp3 = wxFopen (OS_FILENAME( outfile ), wxT("wb"))) == NULL)
 984     {
 985       if (fp1)
 986         fclose (fp1);
 987       if (fp2)
 988         fclose (fp2);
 989       if (fp3)
 990         fclose (fp3);
 991       return FALSE;
 992     }
 993
 994   int ch;
 995   while ((ch = getc (fp1)) != EOF)
 996     (void) putc (ch, fp3);
 997   fclose (fp1);
 998
 999   while ((ch = getc (fp2)) != EOF)
1000     (void) putc (ch, fp3);
1001   fclose (fp2);
1002
1003   fclose (fp3);
1004   bool result = wxRenameFile(outfile, file3);
1005   return result;
1006 }
1007
1008 // Copy files
1009 bool
1010 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1011 {
1012 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1013     // CopyFile() copies file attributes and modification time too, so use it
1014     // instead of our code if available
1015     //
1016     // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1017     return ::CopyFile(file1, file2, !overwrite) != 0;
1018 #else // !Win32
1019     wxStructStat fbuf;
1020
1021     // get permissions of file1
1022     if ( wxStat(OS_FILENAME(file1), &fbuf) != 0 )
1023     {
1024         // the file probably doesn't exist or we haven't the rights to read
1025         // from it anyhow
1026         wxLogSysError(_("Impossible to get permissions for file '%s'"),
1027                       file1.c_str());
1028         return FALSE;
1029     }
1030
1031     // open file1 for reading
1032     wxFile fileIn(file1, wxFile::read);
1033     if ( !fileIn.IsOpened() )
1034         return FALSE;
1035
1036     // remove file2, if it exists. This is needed for creating
1037     // file2 with the correct permissions in the next step
1038     if ( wxFileExists(file2)  && (!overwrite || !wxRemoveFile(file2)))
1039     {
1040         wxLogSysError(_("Impossible to overwrite the file '%s'"),
1041                       file2.c_str());
1042         return FALSE;
1043     }
1044
1045 #ifdef __UNIX__
1046     // reset the umask as we want to create the file with exactly the same
1047     // permissions as the original one
1048     mode_t oldUmask = umask( 0 );
1049 #endif // __UNIX__
1050
1051     // create file2 with the same permissions than file1 and open it for
1052     // writing
1053     wxFile fileOut;
1054     if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1055         return FALSE;
1056
1057 #ifdef __UNIX__
1058     /// restore the old umask
1059     umask(oldUmask);
1060 #endif // __UNIX__
1061
1062     // copy contents of file1 to file2
1063     char buf[4096];
1064     size_t count;
1065     for ( ;; )
1066     {
1067         count = fileIn.Read(buf, WXSIZEOF(buf));
1068         if ( fileIn.Error() )
1069             return FALSE;
1070
1071         // end of file?
1072         if ( !count )
1073             break;
1074
1075         if ( fileOut.Write(buf, count) < count )
1076             return FALSE;
1077     }
1078
1079     // we can expect fileIn to be closed successfully, but we should ensure
1080     // that fileOut was closed as some write errors (disk full) might not be
1081     // detected before doing this
1082     if ( !fileIn.Close() || !fileOut.Close() )
1083         return FALSE;
1084
1085 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1086     // no chmod in VA.  Should be some permission API for HPFS386 partitions
1087     // however
1088     if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1089     {
1090         wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1091                       file2.c_str());
1092         return FALSE;
1093     }
1094 #endif // OS/2 || Mac
1095
1096     return TRUE;
1097 #endif // __WXMSW__ && __WIN32__
1098 }
1099
1100 bool
1101 wxRenameFile (const wxString& file1, const wxString& file2)
1102 {
1103   // Normal system call
1104   if ( wxRename (file1, file2) == 0 )
1105     return TRUE;
1106
1107   // Try to copy
1108   if (wxCopyFile(file1, file2)) {
1109     wxRemoveFile(file1);
1110     return TRUE;
1111   }
1112   // Give up
1113   return FALSE;
1114 }
1115
1116 bool wxRemoveFile(const wxString& file)
1117 {
1118 #if defined(__VISUALC__) \
1119  || defined(__BORLANDC__) \
1120  || defined(__WATCOMC__) \
1121  || defined(__GNUWIN32__)
1122   int res = wxRemove(file);
1123 #else
1124   int res = unlink(OS_FILENAME(file));
1125 #endif
1126
1127   return res == 0;
1128 }
1129
1130 bool wxMkdir(const wxString& dir, int perm)
1131 {
1132 #if defined(__WXMAC__) && !defined(__UNIX__)
1133   return (mkdir( dir , 0 ) == 0);
1134 #else // !Mac
1135     const wxChar *dirname = dir.c_str();
1136
1137     // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1138     // for the GNU compiler
1139 #if (!(defined(__WXMSW__) || defined(__WXPM__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__) || defined(__WXMICROWIN__)
1140     if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1141 #elif defined(__WXPM__)
1142     if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1143 #else  // !MSW and !OS/2 VAC++
1144         (void)perm;
1145     if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1146 #endif // !MSW/MSW
1147     {
1148         wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1149
1150         return FALSE;
1151     }
1152
1153     return TRUE;
1154 #endif // Mac/!Mac
1155 }
1156
1157 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1158 {
1159 #ifdef __VMS__
1160   return FALSE; //to be changed since rmdir exists in VMS7.x
1161 #elif defined(__WXPM__)
1162   return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1163 #else
1164
1165 #ifdef __SALFORDC__
1166   return FALSE; // What to do?
1167 #else
1168   return (wxRmDir(OS_FILENAME(dir)) == 0);
1169 #endif
1170
1171 #endif
1172 }
1173
1174 // does the path exists? (may have or not '/' or '\\' at the end)
1175 bool wxPathExists(const wxChar *pszPathName)
1176 {
1177     wxString strPath(pszPathName);
1178 #ifdef __WINDOWS__
1179     // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1180     // so remove all trailing backslashes from the path - but don't do this for
1181     // the pathes "d:\" (which are different from "d:") nor for just "\"
1182     while ( wxEndsWithPathSeparator(strPath) )
1183     {
1184         size_t len = strPath.length();
1185         if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1186             break;
1187
1188         strPath.Truncate(len - 1);
1189     }
1190 #endif // __WINDOWS__
1191
1192 #ifdef __WINDOWS__
1193     // Stat can't cope with network paths
1194     DWORD ret = GetFileAttributes(strPath.c_str());
1195     DWORD isDir = (ret & FILE_ATTRIBUTE_DIRECTORY);
1196     return ((ret != 0xffffffff) && (isDir != 0));
1197 #else
1198
1199     wxStructStat st;
1200 #ifndef __VISAGECPP__
1201     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1202         ((st.st_mode & S_IFMT) == S_IFDIR);
1203 #else
1204     // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1205     return wxStat(wxFNSTRINGCAST strPath.fn_str(), &st) == 0 &&
1206         (st.st_mode == S_IFDIR);
1207 #endif
1208
1209 #endif
1210 }
1211
1212 // Get a temporary filename, opening and closing the file.
1213 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1214 {
1215 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1216
1217 #ifndef        __WIN32__
1218   wxChar tmp[144];
1219   ::GetTempFileName(0, WXSTRINGCAST prefix, 0, tmp);
1220 #else
1221   wxChar tmp[MAX_PATH];
1222   wxChar tmpPath[MAX_PATH];
1223   ::GetTempPath(MAX_PATH, tmpPath);
1224   ::GetTempFileName(tmpPath, WXSTRINGCAST prefix, 0, tmp);
1225 #endif
1226   if (buf) wxStrcpy(buf, tmp);
1227   else buf = copystring(tmp);
1228   return buf;
1229
1230 #else
1231   static short last_temp = 0;        // cache last to speed things a bit
1232   // At most 1000 temp files to a process! We use a ring count.
1233   wxChar tmp[100]; // FIXME static buffer
1234
1235   for (short suffix = last_temp + 1; suffix != last_temp; ++suffix %= 1000)
1236     {
1237       wxSprintf (tmp, wxT("/tmp/%s%d.%03x"), WXSTRINGCAST prefix, (int) getpid (), (int) suffix);
1238       if (!wxFileExists( tmp ))
1239         {
1240           // Touch the file to create it (reserve name)
1241           FILE *fd = fopen (wxFNCONV(tmp), "w");
1242           if (fd)
1243             fclose (fd);
1244           last_temp = suffix;
1245           if (buf)
1246             wxStrcpy( buf, tmp);
1247           else
1248             buf = copystring( tmp );
1249           return buf;
1250         }
1251     }
1252   wxLogError( _("wxWindows: error finding temporary file name.\n") );
1253   if (buf) buf[0] = 0;
1254   return (wxChar *) NULL;
1255 #endif
1256 }
1257
1258 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1259 {
1260     wxChar buf2[512];
1261     if (wxGetTempFileName(prefix, buf2) != (wxChar*) NULL)
1262     {
1263         buf = buf2;
1264         return TRUE;
1265     }
1266     else
1267         return FALSE;
1268 }
1269
1270 // Get first file name matching given wild card.
1271
1272 #ifdef __UNIX__
1273
1274 // Get first file name matching given wild card.
1275 // Flags are reserved for future use.
1276
1277 #if !defined( __VMS__ ) || ( __VMS_VER >= 70000000 )
1278     static DIR *gs_dirStream = (DIR *) NULL;
1279     static wxString gs_strFileSpec;
1280     static int gs_findFlags = 0;
1281 #endif
1282
1283 wxString wxFindFirstFile(const wxChar *spec, int flags)
1284 {
1285     wxString result;
1286 #ifdef __VMS
1287    wxChar *specvms = NULL;
1288 #endif
1289
1290 #if !defined( __VMS__ ) || ( __VMS_VER >= 70000000 )
1291     if (gs_dirStream)
1292         closedir(gs_dirStream); // edz 941103: better housekeping
1293
1294     gs_findFlags = flags;
1295
1296     gs_strFileSpec = spec;
1297
1298     // Find path only so we can concatenate
1299     // found file onto path
1300     wxString path(wxPathOnly(gs_strFileSpec));
1301
1302     // special case: path is really "/"
1303     if ( !path && gs_strFileSpec[0u] == wxT('/') )
1304 #ifdef __VMS
1305      {
1306         wxStrcpy( specvms , wxT( "[000000]" ) );
1307         gs_strFileSpec = specvms;
1308         wxString path_vms(wxPathOnly(gs_strFileSpec));
1309         path = path_vms;
1310      }
1311 #else
1312      path = wxT('/');
1313 #endif
1314    // path is empty => Local directory
1315     if ( !path )
1316 #ifdef __VMS
1317      {
1318         wxStrcpy( specvms , wxT( "[]" ) );
1319         gs_strFileSpec = specvms;
1320         wxString path_vms1(wxPathOnly(gs_strFileSpec));
1321         path = path_vms1;
1322      }
1323 #else
1324      path = wxT('.');
1325 #endif
1326
1327     gs_dirStream = opendir(path.fn_str());
1328     if ( !gs_dirStream )
1329     {
1330         wxLogSysError(_("Can not enumerate files in directory '%s'"),
1331                       path.c_str());
1332     }
1333     else
1334     {
1335         result = wxFindNextFile();
1336     }
1337 #endif // !VMS6.x or earlier
1338
1339     return result;
1340 }
1341
1342 wxString wxFindNextFile()
1343 {
1344     wxString result;
1345
1346 #if !defined( __VMS__ ) || ( __VMS_VER >= 70000000 )
1347     wxCHECK_MSG( gs_dirStream, result, wxT("must call wxFindFirstFile first") );
1348
1349     // Find path only so we can concatenate
1350     // found file onto path
1351     wxString path(wxPathOnly(gs_strFileSpec));
1352     wxString name(wxFileNameFromPath(gs_strFileSpec));
1353
1354     /* MATTHEW: special case: path is really "/" */
1355     if ( !path && gs_strFileSpec[0u] == wxT('/'))
1356         path = wxT('/');
1357
1358     // Do the reading
1359     struct dirent *nextDir;
1360     for ( nextDir = readdir(gs_dirStream);
1361           nextDir != NULL;
1362           nextDir = readdir(gs_dirStream) )
1363     {
1364         if (wxMatchWild(name, nextDir->d_name, FALSE) &&   // RR: added FALSE to find hidden files
1365         strcmp(nextDir->d_name, ".") &&
1366         strcmp(nextDir->d_name, "..") )
1367         {
1368             result.Empty();
1369             if ( !path.IsEmpty() )
1370             {
1371                 result = path;
1372                 if ( path != wxT('/') )
1373                     result += wxT('/');
1374             }
1375
1376             result += nextDir->d_name;
1377
1378             // Only return "." and ".." when they match
1379             bool isdir;
1380             if ( (strcmp(nextDir->d_name, ".") == 0) ||
1381                  (strcmp(nextDir->d_name, "..") == 0))
1382             {
1383                 if ( (gs_findFlags & wxDIR) != 0 )
1384                     isdir = TRUE;
1385                 else
1386                     continue;
1387             }
1388             else
1389                 isdir = wxDirExists(result);
1390
1391             // and only return directories when flags & wxDIR
1392             if ( !gs_findFlags ||
1393                  ((gs_findFlags & wxDIR) && isdir) ||
1394                  ((gs_findFlags & wxFILE) && !isdir) )
1395             {
1396                 return result;
1397             }
1398         }
1399     }
1400
1401     result.Empty(); // not found
1402
1403     closedir(gs_dirStream);
1404     gs_dirStream = (DIR *) NULL;
1405 #endif // !VMS6.2 or earlier
1406
1407     return result;
1408 }
1409
1410 #elif defined(__WXMAC__)
1411
1412 struct MacDirectoryIterator
1413 {
1414     CInfoPBRec            m_CPB ;
1415     wxInt16                m_index ;
1416     long                m_dirId ;
1417     Str255                m_name ;
1418 } ;
1419
1420 static int g_iter_flags ;
1421
1422 static MacDirectoryIterator g_iter ;
1423
1424 wxString wxFindFirstFile(const wxChar *spec, int flags)
1425 {
1426     wxString result;
1427
1428     g_iter_flags = flags; /* MATTHEW: [5] Remember flags */
1429
1430     // Find path only so we can concatenate found file onto path
1431     wxString path(wxPathOnly(spec));
1432     if ( !path.IsEmpty() )
1433         result << path << wxT('\\');
1434
1435     FSSpec fsspec ;
1436
1437     wxMacFilename2FSSpec( result , &fsspec ) ;
1438     g_iter.m_CPB.hFileInfo.ioVRefNum = fsspec.vRefNum ;
1439     g_iter.m_CPB.hFileInfo.ioNamePtr = g_iter.m_name ;
1440     g_iter.m_index = 0 ;
1441
1442     Boolean isDir ;
1443     FSpGetDirectoryID( &fsspec , &g_iter.m_dirId , &isDir ) ;
1444     if ( !isDir )
1445         return wxEmptyString ;
1446
1447     return wxFindNextFile( ) ;
1448 }
1449
1450 wxString wxFindNextFile()
1451 {
1452     wxString result;
1453
1454     short err = noErr ;
1455
1456     while ( err == noErr )
1457     {
1458         g_iter.m_index++ ;
1459         g_iter.m_CPB.dirInfo.ioFDirIndex = g_iter.m_index;
1460         g_iter.m_CPB.dirInfo.ioDrDirID = g_iter.m_dirId;    /* we need to do this every time */
1461         err = PBGetCatInfoSync((CInfoPBPtr)&g_iter.m_CPB);
1462         if ( err != noErr )
1463             break ;
1464
1465         if ( ( g_iter.m_CPB.dirInfo.ioFlAttrib & ioDirMask) != 0 && (g_iter_flags & wxDIR) ) //  we have a directory
1466             break ;
1467
1468         if ( ( g_iter.m_CPB.dirInfo.ioFlAttrib & ioDirMask) == 0 && !(g_iter_flags & wxFILE ) )
1469             continue ;
1470
1471         // hit !
1472         break ;
1473     }
1474     if ( err != noErr )
1475     {
1476         return wxEmptyString ;
1477     }
1478     FSSpec spec ;
1479
1480     FSMakeFSSpecCompat(g_iter.m_CPB.hFileInfo.ioVRefNum,
1481                                    g_iter.m_dirId,
1482                                    g_iter.m_name,
1483                                    &spec) ;
1484
1485     return wxMacFSSpec2MacFilename( &spec ) ;
1486 }
1487
1488 #elif defined(__WXMSW__)
1489
1490 #ifdef __WIN32__
1491     static HANDLE gs_hFileStruct = INVALID_HANDLE_VALUE;
1492     static WIN32_FIND_DATA gs_findDataStruct;
1493 #else // Win16
1494     #ifdef __BORLANDC__
1495         static struct ffblk gs_findDataStruct;
1496     #else
1497         static struct _find_t gs_findDataStruct;
1498     #endif // Borland
1499 #endif // Win32/16
1500
1501 static wxString gs_strFileSpec;
1502 static int gs_findFlags = 0;
1503
1504 wxString wxFindFirstFile(const wxChar *spec, int flags)
1505 {
1506     wxString result;
1507
1508     gs_strFileSpec = spec;
1509     gs_findFlags = flags; /* MATTHEW: [5] Remember flags */
1510
1511     // Find path only so we can concatenate found file onto path
1512     wxString path(wxPathOnly(gs_strFileSpec));
1513     if ( !path.IsEmpty() )
1514         result << path << wxT('\\');
1515
1516 #ifdef __WIN32__
1517     if ( gs_hFileStruct != INVALID_HANDLE_VALUE )
1518         FindClose(gs_hFileStruct);
1519
1520     gs_hFileStruct = ::FindFirstFile(WXSTRINGCAST spec, &gs_findDataStruct);
1521
1522     if ( gs_hFileStruct == INVALID_HANDLE_VALUE )
1523     {
1524         result.Empty();
1525
1526         return result;
1527     }
1528
1529     bool isdir = !!(gs_findDataStruct.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
1530
1531     if (isdir && !(flags & wxDIR))
1532         return wxFindNextFile();
1533     else if (!isdir && flags && !(flags & wxFILE))
1534         return wxFindNextFile();
1535
1536     result += gs_findDataStruct.cFileName;
1537
1538     return result;
1539 #else // !Win32
1540     int flag = _A_NORMAL;
1541     if (flags & wxDIR)
1542         flag = _A_SUBDIR;
1543
1544 #ifdef __BORLANDC__
1545     if (findfirst(WXSTRINGCAST spec, &gs_findDataStruct, flag) == 0)
1546 #else
1547         if (_dos_findfirst(WXSTRINGCAST spec, flag, &gs_findDataStruct) == 0)
1548 #endif
1549         {
1550             char attrib;
1551
1552 #ifdef __BORLANDC__
1553             attrib = gs_findDataStruct.ff_attrib;
1554 #else
1555             attrib = gs_findDataStruct.attrib;
1556 #endif
1557
1558             if (attrib & _A_SUBDIR) {
1559                 if (!(gs_findFlags & wxDIR))
1560                     return wxFindNextFile();
1561             } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1562                 return wxFindNextFile();
1563
1564             result +=
1565 #ifdef __BORLANDC__
1566                     gs_findDataStruct.ff_name
1567 #else
1568                     gs_findDataStruct.name
1569 #endif
1570                     ;
1571         }
1572
1573     return result;
1574 #endif // __WIN32__
1575 }
1576
1577
1578 wxString wxFindNextFile()
1579 {
1580     wxString result;
1581
1582     // Find path only so we can concatenate found file onto path
1583     wxString path(wxPathOnly(gs_strFileSpec));
1584
1585 try_again:
1586
1587 #ifdef __WIN32__
1588     if (gs_hFileStruct == INVALID_HANDLE_VALUE)
1589         return result;
1590
1591     bool success = (FindNextFile(gs_hFileStruct, &gs_findDataStruct) != 0);
1592     if (!success)
1593     {
1594         FindClose(gs_hFileStruct);
1595         gs_hFileStruct = INVALID_HANDLE_VALUE;
1596     }
1597     else
1598     {
1599         bool isdir = !!(gs_findDataStruct.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
1600
1601         if (isdir && !(gs_findFlags & wxDIR))
1602             goto try_again;
1603         else if (!isdir && gs_findFlags && !(gs_findFlags & wxFILE))
1604             goto try_again;
1605
1606         if ( !path.IsEmpty() )
1607             result << path << wxT('\\');
1608         result << gs_findDataStruct.cFileName;
1609     }
1610
1611     return result;
1612 #else // Win16
1613
1614 #ifdef __BORLANDC__
1615     if (findnext(&gs_findDataStruct) == 0)
1616 #else
1617         if (_dos_findnext(&gs_findDataStruct) == 0)
1618 #endif
1619         {
1620             /* MATTHEW: [5] Check directory flag */
1621             char attrib;
1622
1623 #ifdef __BORLANDC__
1624             attrib = gs_findDataStruct.ff_attrib;
1625 #else
1626             attrib = gs_findDataStruct.attrib;
1627 #endif
1628
1629             if (attrib & _A_SUBDIR) {
1630                 if (!(gs_findFlags & wxDIR))
1631                     goto try_again;
1632             } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1633                 goto try_again;
1634
1635
1636             result +=
1637 #ifdef __BORLANDC__
1638                       gs_findDataStruct.ff_name
1639 #else
1640                       gs_findDataStruct.name
1641 #endif
1642                       ;
1643         }
1644
1645     return result;
1646 #endif // Win32/16
1647 }
1648
1649 #elif defined(__WXPM__)
1650
1651 wxString wxFindFirstFile(const wxChar *spec, int flags)
1652 {
1653     wxString result;
1654
1655     /*
1656     // TODO: figure something out here for OS/2
1657     gs_strFileSpec = spec;
1658     gs_findFlags = flags;
1659
1660     // Find path only so we can concatenate found file onto path
1661     wxString path(wxPathOnly(gs_strFileSpec));
1662     if ( !path.IsEmpty() )
1663         result << path << wxT('\\');
1664
1665     int flag = _A_NORMAL;
1666     if (flags & wxDIR)
1667         flag = _A_SUBDIR;
1668
1669     if (_dos_findfirst(WXSTRINGCAST spec, flag, &gs_findDataStruct) == 0)
1670     {
1671         char attrib;
1672         attrib = gs_findDataStruct.attrib;
1673
1674         if (attrib & _A_SUBDIR) {
1675             if (!(gs_findFlags & wxDIR))
1676                 return wxFindNextFile();
1677         } else if (gs_findFlags && !(gs_findFlags & wxFILE))
1678             return wxFindNextFile();
1679
1680         result += gs_findDataStruct.name;
1681     }
1682     */
1683     return result;
1684 }
1685
1686 wxString wxFindNextFile()
1687 {
1688     wxString result;
1689     // TODO:
1690     return result;
1691 }
1692
1693 #endif // Unix/Windows/OS/2
1694
1695 // Get current working directory.
1696 // If buf is NULL, allocates space using new, else
1697 // copies into buf.
1698 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1699 {
1700   if (!buf)
1701     buf = new wxChar[sz+1];
1702 #if wxUSE_UNICODE
1703   char *cbuf = new char[sz+1];
1704 #ifdef _MSC_VER
1705   if (_getcwd(cbuf, sz) == NULL) {
1706 #elif defined(__WXMAC__) && !defined(__UNIX__)
1707     enum
1708     {
1709         SFSaveDisk = 0x214, CurDirStore = 0x398
1710     };
1711     FSSpec cwdSpec ;
1712
1713     FSMakeFSSpec( - *(short *) SFSaveDisk , *(long *) CurDirStore , NULL , &cwdSpec ) ;
1714     wxString res = wxMacFSSpec2UnixFilename( &cwdSpec ) ;
1715     strcpy( buf , res ) ;
1716     if (0) {
1717 #else
1718   if (getcwd(cbuf, sz) == NULL) {
1719 #endif
1720     delete [] cbuf;
1721 #else // wxUnicode
1722 #ifdef _MSC_VER
1723   if (_getcwd(buf, sz) == NULL) {
1724 #elif defined(__WXMAC__) && !defined(__UNIX__)
1725         FSSpec cwdSpec ;
1726         FCBPBRec pb;
1727         OSErr error;
1728         Str255  fileName ;
1729         pb.ioNamePtr = (StringPtr) &fileName;
1730         pb.ioVRefNum = 0;
1731         pb.ioRefNum = LMGetCurApRefNum();
1732         pb.ioFCBIndx = 0;
1733         error = PBGetFCBInfoSync(&pb);
1734         if ( error == noErr )
1735         {
1736                 cwdSpec.vRefNum = pb.ioFCBVRefNum;
1737                 cwdSpec.parID = pb.ioFCBParID;
1738                 cwdSpec.name[0] = 0 ;
1739                 wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1740
1741                 strcpy( buf , res ) ;
1742                 buf[res.length()-1]=0 ;
1743         }
1744         else
1745                 buf[0] = 0 ;
1746         /*
1747         this version will not always give back the application directory on mac
1748         enum
1749         {
1750                 SFSaveDisk = 0x214, CurDirStore = 0x398
1751         };
1752         FSSpec cwdSpec ;
1753
1754         FSMakeFSSpec( - *(short *) SFSaveDisk , *(long *) CurDirStore , NULL , &cwdSpec ) ;
1755         wxString res = wxMacFSSpec2UnixFilename( &cwdSpec ) ;
1756         strcpy( buf , res ) ;
1757         */
1758         if (0) {
1759 #elif(__VISAGECPP__)
1760     APIRET rc;
1761     rc = ::DosQueryCurrentDir( 0 // current drive
1762                               ,buf
1763                               ,(PULONG)&sz
1764                              );
1765     if (rc != 0) {
1766 #else
1767   if (getcwd(buf, sz) == NULL) {
1768 #endif
1769 #endif
1770     buf[0] = wxT('.');
1771     buf[1] = wxT('\0');
1772   }
1773 #if wxUSE_UNICODE
1774   else {
1775     wxConvFile.MB2WC(buf, cbuf, sz);
1776     delete [] cbuf;
1777   }
1778 #endif
1779   return buf;
1780 }
1781
1782 wxString wxGetCwd()
1783 {
1784     static const size_t maxPathLen = 1024;
1785
1786     wxString str;
1787     wxGetWorkingDirectory(str.GetWriteBuf(maxPathLen), maxPathLen);
1788     str.UngetWriteBuf();
1789
1790     return str;
1791 }
1792
1793 bool wxSetWorkingDirectory(const wxString& d)
1794 {
1795 #if defined( __UNIX__ ) || defined( __WXMAC__ )
1796   return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1797 #elif defined(__WXPM__)
1798   return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1799 #elif defined(__WINDOWS__)
1800
1801 #ifdef __WIN32__
1802   return (bool)(SetCurrentDirectory(d) != 0);
1803 #else
1804   // Must change drive, too.
1805   bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1806   if (isDriveSpec)
1807   {
1808     wxChar firstChar = d[0];
1809
1810     // To upper case
1811     if (firstChar > 90)
1812       firstChar = firstChar - 32;
1813
1814     // To a drive number
1815     unsigned int driveNo = firstChar - 64;
1816     if (driveNo > 0)
1817     {
1818        unsigned int noDrives;
1819        _dos_setdrive(driveNo, &noDrives);
1820     }
1821   }
1822   bool success = (chdir(WXSTRINGCAST d) == 0);
1823
1824   return success;
1825 #endif
1826
1827 #endif
1828 }
1829
1830 // Get the OS directory if appropriate (such as the Windows directory).
1831 // On non-Windows platform, probably just return the empty string.
1832 wxString wxGetOSDirectory()
1833 {
1834 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1835     wxChar buf[256];
1836     GetWindowsDirectory(buf, 256);
1837     return wxString(buf);
1838 #else
1839     return wxEmptyString;
1840 #endif
1841 }
1842
1843 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1844 {
1845   size_t len = wxStrlen(pszFileName);
1846   if ( len == 0 )
1847     return FALSE;
1848   else
1849     return wxIsPathSeparator(pszFileName[len - 1]);
1850 }
1851
1852 // find a file in a list of directories, returns false if not found
1853 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1854 {
1855     // we assume that it's not empty
1856     wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1857                  _T("empty file name in wxFindFileInPath"));
1858
1859     // skip path separator in the beginning of the file name if present
1860     if ( wxIsPathSeparator(*pszFile) )
1861         pszFile++;
1862
1863     // copy the path (strtok will modify it)
1864     wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1865     wxStrcpy(szPath, pszPath);
1866
1867     wxString strFile;
1868     wxChar *pc, *save_ptr;
1869     for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1870           pc != NULL;
1871           pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1872     {
1873         // search for the file in this directory
1874         strFile = pc;
1875         if ( !wxEndsWithPathSeparator(pc) )
1876             strFile += wxFILE_SEP_PATH;
1877         strFile += pszFile;
1878
1879         if ( FileExists(strFile) ) {
1880             *pStr = strFile;
1881             break;
1882         }
1883     }
1884
1885     // suppress warning about unused variable save_ptr when wxStrtok() is a
1886     // macro which throws away its third argument
1887     save_ptr = pc;
1888
1889     delete [] szPath;
1890
1891     return pc != NULL;  // if true => we breaked from the loop
1892 }
1893
1894 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1895                              wxString *pstrPath,
1896                              wxString *pstrName,
1897                              wxString *pstrExt)
1898 {
1899     // it can be empty, but it shouldn't be NULL
1900     wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1901
1902     wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1903 }
1904
1905 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1906 {
1907     wxStructStat buf;
1908
1909     wxStat(filename.fn_str(), &buf);
1910     return buf.st_mtime;
1911 }
1912
1913
1914 //------------------------------------------------------------------------
1915 // wild character routines
1916 //------------------------------------------------------------------------
1917
1918 bool wxIsWild( const wxString& pattern )
1919 {
1920   wxString tmp = pattern;
1921   wxChar *pat = WXSTRINGCAST(tmp);
1922     while (*pat) {
1923         switch (*pat++) {
1924         case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1925             return TRUE;
1926         case wxT('\\'):
1927             if (!*pat++)
1928                 return FALSE;
1929         }
1930     }
1931     return FALSE;
1932 };
1933
1934 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1935
1936 #if defined(HAVE_FNMATCH_H)
1937 {
1938 // this probably won't work well for multibyte chars in Unicode mode?
1939    if(dot_special)
1940       return fnmatch(pat.fn_str(), text.fn_str(), FNM_PERIOD) == 0;
1941    else
1942       return fnmatch(pat.fn_str(), text.fn_str(), 0) == 0;
1943 }
1944 #else
1945
1946 // #pragma error Broken implementation of wxMatchWild() -- needs fixing!
1947
1948    /*
1949     * WARNING: this code is broken!
1950     */
1951 {
1952   wxString tmp1 = pat;
1953   wxChar *pattern = WXSTRINGCAST(tmp1);
1954   wxString tmp2 = text;
1955   wxChar *str = WXSTRINGCAST(tmp2);
1956     wxChar c;
1957     wxChar *cp;
1958     bool done = FALSE, ret_code, ok;
1959     // Below is for vi fans
1960     const wxChar OB = wxT('{'), CB = wxT('}');
1961
1962     // dot_special means '.' only matches '.'
1963     if (dot_special && *str == wxT('.') && *pattern != *str)
1964         return FALSE;
1965
1966     while ((*pattern != wxT('\0')) && (!done)
1967     && (((*str==wxT('\0'))&&((*pattern==OB)||(*pattern==wxT('*'))))||(*str!=wxT('\0')))) {
1968         switch (*pattern) {
1969         case wxT('\\'):
1970             pattern++;
1971             if (*pattern != wxT('\0'))
1972                 pattern++;
1973             break;
1974         case wxT('*'):
1975             pattern++;
1976             ret_code = FALSE;
1977             while ((*str!=wxT('\0'))
1978             && ((ret_code=wxMatchWild(pattern, str++, FALSE)) == 0))
1979                 /*loop*/;
1980             if (ret_code) {
1981                 while (*str != wxT('\0'))
1982                     str++;
1983                 while (*pattern != wxT('\0'))
1984                     pattern++;
1985             }
1986             break;
1987         case wxT('['):
1988             pattern++;
1989           repeat:
1990             if ((*pattern == wxT('\0')) || (*pattern == wxT(']'))) {
1991                 done = TRUE;
1992                 break;
1993             }
1994             if (*pattern == wxT('\\')) {
1995                 pattern++;
1996                 if (*pattern == wxT('\0')) {
1997                     done = TRUE;
1998                     break;
1999                 }
2000             }
2001             if (*(pattern + 1) == wxT('-')) {
2002                 c = *pattern;
2003                 pattern += 2;
2004                 if (*pattern == wxT(']')) {
2005                     done = TRUE;
2006                     break;
2007                 }
2008                 if (*pattern == wxT('\\')) {
2009                     pattern++;
2010                     if (*pattern == wxT('\0')) {
2011                         done = TRUE;
2012                         break;
2013                     }
2014                 }
2015                 if ((*str < c) || (*str > *pattern)) {
2016                     pattern++;
2017                     goto repeat;
2018                 }
2019             } else if (*pattern != *str) {
2020                 pattern++;
2021                 goto repeat;
2022             }
2023             pattern++;
2024             while ((*pattern != wxT(']')) && (*pattern != wxT('\0'))) {
2025                 if ((*pattern == wxT('\\')) && (*(pattern + 1) != wxT('\0')))
2026                     pattern++;
2027                 pattern++;
2028             }
2029             if (*pattern != wxT('\0')) {
2030                 pattern++, str++;
2031             }
2032             break;
2033         case wxT('?'):
2034             pattern++;
2035             str++;
2036             break;
2037         case OB:
2038             pattern++;
2039             while ((*pattern != CB) && (*pattern != wxT('\0'))) {
2040                 cp = str;
2041                 ok = TRUE;
2042                 while (ok && (*cp != wxT('\0')) && (*pattern != wxT('\0'))
2043                 &&  (*pattern != wxT(',')) && (*pattern != CB)) {
2044                     if (*pattern == wxT('\\'))
2045                         pattern++;
2046                     ok = (*pattern++ == *cp++);
2047                 }
2048                 if (*pattern == wxT('\0')) {
2049                     ok = FALSE;
2050                     done = TRUE;
2051                     break;
2052                 } else if (ok) {
2053                     str = cp;
2054                     while ((*pattern != CB) && (*pattern != wxT('\0'))) {
2055                         if (*++pattern == wxT('\\')) {
2056                             if (*++pattern == CB)
2057                                 pattern++;
2058                         }
2059                     }
2060                 } else {
2061                     while (*pattern!=CB && *pattern!=wxT(',') && *pattern!=wxT('\0')) {
2062                         if (*++pattern == wxT('\\')) {
2063                             if (*++pattern == CB || *pattern == wxT(','))
2064                                 pattern++;
2065                         }
2066                     }
2067                 }
2068                 if (*pattern != wxT('\0'))
2069                     pattern++;
2070             }
2071             break;
2072         default:
2073             if (*str == *pattern) {
2074                 str++, pattern++;
2075             } else {
2076                 done = TRUE;
2077             }
2078         }
2079     }
2080     while (*pattern == wxT('*'))
2081         pattern++;
2082     return ((*str == wxT('\0')) && (*pattern == wxT('\0')));
2083 };
2084
2085 #endif
2086
2087 #ifdef __VISUALC__
2088     #pragma warning(default:4706)   // assignment within conditional expression
2089 #endif // VC++