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signed/unsigned comparison warning (and probably even error) fixed
[wxWidgets.git] / 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 #include "wx/dir.h"
37
38 // there are just too many of those...
39 #ifdef __VISUALC__
40 #pragma warning(disable:4706) // assignment within conditional expression
41 #endif // VC++
42
43 #include <ctype.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include <string.h>
47 #if !defined(__WATCOMC__)
48 #if !(defined(_MSC_VER) && (_MSC_VER > 800))
49 #include <errno.h>
50 #endif
51 #endif
52
53 #if defined(__WXMAC__)
54 #include "wx/mac/private.h" // includes mac headers
55 #endif
56
57 #include <time.h>
58
59 #ifndef __MWERKS__
60 #include <sys/types.h>
61 #include <sys/stat.h>
62 #else
63 #include <stat.h>
64 #include <unistd.h>
65 #include <unix.h>
66 #endif
67
68 #ifdef __UNIX__
69 #include <unistd.h>
70 #include <dirent.h>
71 #include <fcntl.h>
72 #endif
73
74 #ifdef __WXPM__
75 #include <process.h>
76 #include "wx/os2/private.h"
77 #endif
78 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__) && !defined(__WXWINE__)
79 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
80 #include <direct.h>
81 #include <dos.h>
82 #include <io.h>
83 #endif // __WINDOWS__
84 #endif // native Win compiler
85
86 #if defined(__DOS__)
87 #ifdef __WATCOMC__
88 #include <direct.h>
89 #include <dos.h>
90 #include <io.h>
91 #endif
92 #ifdef __DJGPP__
93 #include <unistd.h>
94 #endif
95 #endif
96
97 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
98 // this (3.1 I believe) and how to test for it.
99 // If this works for Borland 4.0 as well, then no worries.
100 #include <dir.h>
101 #endif
102
103 #ifdef __SALFORDC__
104 #include <dir.h>
105 #include <unix.h>
106 #endif
107
108 #include "wx/setup.h"
109 #include "wx/log.h"
110
111 // No, Cygwin doesn't appear to have fnmatch.h after all.
112 #if defined(HAVE_FNMATCH_H)
113 #include "fnmatch.h"
114 #endif
115
116 #ifdef __WINDOWS__
117 #include <windows.h>
118 #include "wx/msw/mslu.h"
119
120 // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
121 //
122 // note that it must be included after <windows.h>
123 #ifdef __GNUWIN32__
124 #ifdef __CYGWIN__
125 #include <sys/cygwin.h>
126 #endif
127 #include <wchar.h>
128 #ifndef __TWIN32__
129 #include <sys/unistd.h>
130 #endif
131 #endif // __GNUWIN32__
132 #endif // __WINDOWS__
133
134 // TODO: Borland probably has _wgetcwd as well?
135 #ifdef _MSC_VER
136 #define HAVE_WGETCWD
137 #endif
138
139 // ----------------------------------------------------------------------------
140 // constants
141 // ----------------------------------------------------------------------------
142
143 #ifndef _MAXPATHLEN
144 #define _MAXPATHLEN 1024
145 #endif
146
147 #ifdef __WXMAC__
148 # include "MoreFiles.h"
149 # include "MoreFilesExtras.h"
150 # include "FullPath.h"
151 # include "FSpCompat.h"
152 #endif
153
154 // ----------------------------------------------------------------------------
155 // private globals
156 // ----------------------------------------------------------------------------
157
158 // MT-FIXME: get rid of this horror and all code using it
159 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
160
161 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
162 //
163 // VisualAge C++ V4.0 cannot have any external linkage const decs
164 // in headers included by more than one primary source
165 //
166 const off_t wxInvalidOffset = (off_t)-1;
167 #endif
168
169 // ----------------------------------------------------------------------------
170 // macros
171 // ----------------------------------------------------------------------------
172
173 // we need to translate Mac filenames before passing them to OS functions
174 #define OS_FILENAME(s) (s.fn_str())
175
176 // ============================================================================
177 // implementation
178 // ============================================================================
179
180 #ifdef wxNEED_WX_UNISTD_H
181
182 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
183 {
184 return stat( wxConvFile.cWX2MB( file_name ), buf );
185 }
186
187 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
188 {
189 return access( wxConvFile.cWX2MB( pathname ), mode );
190 }
191
192 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
193 {
194 return open( wxConvFile.cWX2MB( pathname ), flags, mode );
195 }
196
197 #endif
198 // wxNEED_WX_UNISTD_H
199
200 // ----------------------------------------------------------------------------
201 // wxPathList
202 // ----------------------------------------------------------------------------
203
204 IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
205
206 void wxPathList::Add (const wxString& path)
207 {
208 wxStringList::Add (WXSTRINGCAST path);
209 }
210
211 // Add paths e.g. from the PATH environment variable
212 void wxPathList::AddEnvList (const wxString& envVariable)
213 {
214 static const wxChar PATH_TOKS[] =
215 #ifdef __WINDOWS__
216 wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
217 #else
218 wxT(" :;");
219 #endif
220
221 wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
222 if (val && *val)
223 {
224 wxChar *s = copystring (val);
225 wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
226
227 if (token)
228 {
229 Add (copystring (token));
230 while (token)
231 {
232 if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
233 Add (wxString(token));
234 }
235 }
236
237 // suppress warning about unused variable save_ptr when wxStrtok() is a
238 // macro which throws away its third argument
239 save_ptr = token;
240
241 delete [] s;
242 }
243 }
244
245 // Given a full filename (with path), ensure that that file can
246 // be accessed again USING FILENAME ONLY by adding the path
247 // to the list if not already there.
248 void wxPathList::EnsureFileAccessible (const wxString& path)
249 {
250 wxString path_only(wxPathOnly(path));
251 if ( !path_only.IsEmpty() )
252 {
253 if ( !Member(path_only) )
254 Add(path_only);
255 }
256 }
257
258 bool wxPathList::Member (const wxString& path)
259 {
260 for (wxNode * node = First (); node != NULL; node = node->Next ())
261 {
262 wxString path2((wxChar *) node->Data ());
263 if (
264 #if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
265 // Case INDEPENDENT
266 path.CompareTo (path2, wxString::ignoreCase) == 0
267 #else
268 // Case sensitive File System
269 path.CompareTo (path2) == 0
270 #endif
271 )
272 return TRUE;
273 }
274 return FALSE;
275 }
276
277 wxString wxPathList::FindValidPath (const wxString& file)
278 {
279 if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
280 return wxString(wxFileFunctionsBuffer);
281
282 wxChar buf[_MAXPATHLEN];
283 wxStrcpy(buf, wxFileFunctionsBuffer);
284
285 wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
286 filename = IsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
287
288 for (wxNode * node = First (); node; node = node->Next ())
289 {
290 wxChar *path = (wxChar *) node->Data ();
291 wxStrcpy (wxFileFunctionsBuffer, path);
292 wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
293 if (ch != wxT('\\') && ch != wxT('/'))
294 wxStrcat (wxFileFunctionsBuffer, wxT("/"));
295 wxStrcat (wxFileFunctionsBuffer, filename);
296 #ifdef __WINDOWS__
297 Unix2DosFilename (wxFileFunctionsBuffer);
298 #endif
299 if (wxFileExists (wxFileFunctionsBuffer))
300 {
301 return wxString(wxFileFunctionsBuffer); // Found!
302 }
303 } // for()
304
305 return wxString(wxT("")); // Not found
306 }
307
308 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
309 {
310 wxString f = FindValidPath(file);
311 if ( wxIsAbsolutePath(f) )
312 return f;
313
314 wxString buf;
315 wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
316
317 if ( !wxEndsWithPathSeparator(buf) )
318 {
319 buf += wxFILE_SEP_PATH;
320 }
321 buf += f;
322
323 return buf;
324 }
325
326 bool
327 wxFileExists (const wxString& filename)
328 {
329 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
330 // GetFileAttributes can copy with network paths unlike stat()
331 DWORD ret = ::GetFileAttributes(filename);
332
333 return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
334 #else
335 wxStructStat stbuf;
336 if ( !filename.empty() && wxStat( filename, &stbuf) == 0 )
337 return TRUE;
338
339 return FALSE;
340 #endif
341 }
342
343 bool
344 wxIsAbsolutePath (const wxString& filename)
345 {
346 if (filename != wxT(""))
347 {
348 #if defined(__WXMAC__) && !defined(__DARWIN__)
349 // Classic or Carbon CodeWarrior like
350 // Carbon with Apple DevTools is Unix like
351
352 // This seems wrong to me, but there is no fix. since
353 // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
354 // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
355 if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
356 return TRUE ;
357 #else
358 // Unix like or Windows
359 if (filename[0] == wxT('/'))
360 return TRUE;
361 #endif
362 #ifdef __VMS__
363 if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
364 return TRUE;
365 #endif
366 #ifdef __WINDOWS__
367 // MSDOS like
368 if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
369 return TRUE;
370 #endif
371 }
372 return FALSE ;
373 }
374
375 /*
376 * Strip off any extension (dot something) from end of file,
377 * IF one exists. Inserts zero into buffer.
378 *
379 */
380
381 void wxStripExtension(wxChar *buffer)
382 {
383 int len = wxStrlen(buffer);
384 int i = len-1;
385 while (i > 0)
386 {
387 if (buffer[i] == wxT('.'))
388 {
389 buffer[i] = 0;
390 break;
391 }
392 i --;
393 }
394 }
395
396 void wxStripExtension(wxString& buffer)
397 {
398 size_t len = buffer.Length();
399 size_t i = len-1;
400 while (i > 0)
401 {
402 if (buffer.GetChar(i) == wxT('.'))
403 {
404 buffer = buffer.Left(i);
405 break;
406 }
407 i --;
408 }
409 }
410
411 // Destructive removal of /./ and /../ stuff
412 wxChar *wxRealPath (wxChar *path)
413 {
414 #ifdef __WXMSW__
415 static const wxChar SEP = wxT('\\');
416 Unix2DosFilename(path);
417 #else
418 static const wxChar SEP = wxT('/');
419 #endif
420 if (path[0] && path[1]) {
421 /* MATTHEW: special case "/./x" */
422 wxChar *p;
423 if (path[2] == SEP && path[1] == wxT('.'))
424 p = &path[0];
425 else
426 p = &path[2];
427 for (; *p; p++)
428 {
429 if (*p == SEP)
430 {
431 if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
432 {
433 wxChar *q;
434 for (q = p - 1; q >= path && *q != SEP; q--);
435 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
436 && (q - 1 <= path || q[-1] != SEP))
437 {
438 wxStrcpy (q, p + 3);
439 if (path[0] == wxT('\0'))
440 {
441 path[0] = SEP;
442 path[1] = wxT('\0');
443 }
444 #ifdef __WXMSW__
445 /* Check that path[2] is NULL! */
446 else if (path[1] == wxT(':') && !path[2])
447 {
448 path[2] = SEP;
449 path[3] = wxT('\0');
450 }
451 #endif
452 p = q - 1;
453 }
454 }
455 else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
456 wxStrcpy (p, p + 2);
457 }
458 }
459 }
460 return path;
461 }
462
463 // Must be destroyed
464 wxChar *wxCopyAbsolutePath(const wxString& filename)
465 {
466 if (filename == wxT(""))
467 return (wxChar *) NULL;
468
469 if (! IsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
470 wxChar buf[_MAXPATHLEN];
471 buf[0] = wxT('\0');
472 wxGetWorkingDirectory(buf, WXSIZEOF(buf));
473 wxChar ch = buf[wxStrlen(buf) - 1];
474 #ifdef __WXMSW__
475 if (ch != wxT('\\') && ch != wxT('/'))
476 wxStrcat(buf, wxT("\\"));
477 #else
478 if (ch != wxT('/'))
479 wxStrcat(buf, wxT("/"));
480 #endif
481 wxStrcat(buf, wxFileFunctionsBuffer);
482 return copystring( wxRealPath(buf) );
483 }
484 return copystring( wxFileFunctionsBuffer );
485 }
486
487 /*-
488 Handles:
489 ~/ => home dir
490 ~user/ => user's home dir
491 If the environment variable a = "foo" and b = "bar" then:
492 Unix:
493 $a => foo
494 $a$b => foobar
495 $a.c => foo.c
496 xxx$a => xxxfoo
497 ${a}! => foo!
498 $(b)! => bar!
499 \$a => \$a
500 MSDOS:
501 $a ==> $a
502 $(a) ==> foo
503 $(a)$b ==> foo$b
504 $(a)$(b)==> foobar
505 test.$$ ==> test.$$
506 */
507
508 /* input name in name, pathname output to buf. */
509
510 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
511 {
512 register wxChar *d, *s, *nm;
513 wxChar lnm[_MAXPATHLEN];
514 int q;
515
516 // Some compilers don't like this line.
517 // const wxChar trimchars[] = wxT("\n \t");
518
519 wxChar trimchars[4];
520 trimchars[0] = wxT('\n');
521 trimchars[1] = wxT(' ');
522 trimchars[2] = wxT('\t');
523 trimchars[3] = 0;
524
525 #ifdef __WXMSW__
526 const wxChar SEP = wxT('\\');
527 #else
528 const wxChar SEP = wxT('/');
529 #endif
530 buf[0] = wxT('\0');
531 if (name == NULL || *name == wxT('\0'))
532 return buf;
533 nm = copystring(name); // Make a scratch copy
534 wxChar *nm_tmp = nm;
535
536 /* Skip leading whitespace and cr */
537 while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
538 nm++;
539 /* And strip off trailing whitespace and cr */
540 s = nm + (q = wxStrlen(nm)) - 1;
541 while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
542 *s = wxT('\0');
543
544 s = nm;
545 d = lnm;
546 #ifdef __WXMSW__
547 q = FALSE;
548 #else
549 q = nm[0] == wxT('\\') && nm[1] == wxT('~');
550 #endif
551
552 /* Expand inline environment variables */
553 #ifdef __VISAGECPP__
554 while (*d)
555 {
556 *d++ = *s;
557 if(*s == wxT('\\'))
558 {
559 *(d - 1) = *++s;
560 if (*d)
561 {
562 s++;
563 continue;
564 }
565 else
566 break;
567 }
568 else
569 #else
570 while ((*d++ = *s) != 0) {
571 # ifndef __WXMSW__
572 if (*s == wxT('\\')) {
573 if ((*(d - 1) = *++s)) {
574 s++;
575 continue;
576 } else
577 break;
578 } else
579 # endif
580 #endif
581 #ifdef __WXMSW__
582 if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
583 #else
584 if (*s++ == wxT('$'))
585 #endif
586 {
587 register wxChar *start = d;
588 register int braces = (*s == wxT('{') || *s == wxT('('));
589 register wxChar *value;
590 while ((*d++ = *s) != 0)
591 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
592 break;
593 else
594 s++;
595 *--d = 0;
596 value = wxGetenv(braces ? start + 1 : start);
597 if (value) {
598 for ((d = start - 1); (*d++ = *value++) != 0;);
599 d--;
600 if (braces && *s)
601 s++;
602 }
603 }
604 }
605
606 /* Expand ~ and ~user */
607 nm = lnm;
608 if (nm[0] == wxT('~') && !q)
609 {
610 /* prefix ~ */
611 if (nm[1] == SEP || nm[1] == 0)
612 { /* ~/filename */
613 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
614 if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
615 if (*++nm)
616 nm++;
617 }
618 } else
619 { /* ~user/filename */
620 register wxChar *nnm;
621 register wxChar *home;
622 for (s = nm; *s && *s != SEP; s++);
623 int was_sep; /* MATTHEW: Was there a separator, or NULL? */
624 was_sep = (*s == SEP);
625 nnm = *s ? s + 1 : s;
626 *s = 0;
627 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
628 if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
629 if (was_sep) /* replace only if it was there: */
630 *s = SEP;
631 s = NULL;
632 } else {
633 nm = nnm;
634 s = home;
635 }
636 }
637 }
638
639 d = buf;
640 if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
641 /* Copy home dir */
642 while (wxT('\0') != (*d++ = *s++))
643 /* loop */;
644 // Handle root home
645 if (d - 1 > buf && *(d - 2) != SEP)
646 *(d - 1) = SEP;
647 }
648 s = nm;
649 while ((*d++ = *s++) != 0);
650 delete[] nm_tmp; // clean up alloc
651 /* Now clean up the buffer */
652 return wxRealPath(buf);
653 }
654
655 /* Contract Paths to be build upon an environment variable
656 component:
657
658 example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
659
660 The call wxExpandPath can convert these back!
661 */
662 wxChar *
663 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
664 {
665 static wxChar dest[_MAXPATHLEN];
666
667 if (filename == wxT(""))
668 return (wxChar *) NULL;
669
670 wxStrcpy (dest, WXSTRINGCAST filename);
671 #ifdef __WXMSW__
672 Unix2DosFilename(dest);
673 #endif
674
675 // Handle environment
676 const wxChar *val = (const wxChar *) NULL;
677 wxChar *tcp = (wxChar *) NULL;
678 if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
679 (tcp = wxStrstr (dest, val)) != NULL)
680 {
681 wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
682 *tcp++ = wxT('$');
683 *tcp++ = wxT('{');
684 wxStrcpy (tcp, WXSTRINGCAST envname);
685 wxStrcat (tcp, wxT("}"));
686 wxStrcat (tcp, wxFileFunctionsBuffer);
687 }
688
689 // Handle User's home (ignore root homes!)
690 size_t len = 0;
691 if ((val = wxGetUserHome (user)) != NULL &&
692 (len = wxStrlen(val)) > 2 &&
693 wxStrncmp(dest, val, len) == 0)
694 {
695 wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
696 if (user != wxT(""))
697 wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
698 wxStrcat(wxFileFunctionsBuffer, dest + len);
699 wxStrcpy (dest, wxFileFunctionsBuffer);
700 }
701
702 return dest;
703 }
704
705 // Return just the filename, not the path (basename)
706 wxChar *wxFileNameFromPath (wxChar *path)
707 {
708 wxString p = path;
709 wxString n = wxFileNameFromPath(p);
710
711 return path + p.length() - n.length();
712 }
713
714 wxString wxFileNameFromPath (const wxString& path)
715 {
716 wxString name, ext;
717 wxFileName::SplitPath(path, NULL, &name, &ext);
718
719 wxString fullname = name;
720 if ( !ext.empty() )
721 {
722 fullname << wxFILE_SEP_EXT << ext;
723 }
724
725 return fullname;
726 }
727
728 // Return just the directory, or NULL if no directory
729 wxChar *
730 wxPathOnly (wxChar *path)
731 {
732 if (path && *path)
733 {
734 static wxChar buf[_MAXPATHLEN];
735
736 // Local copy
737 wxStrcpy (buf, path);
738
739 int l = wxStrlen(path);
740 int i = l - 1;
741
742 // Search backward for a backward or forward slash
743 while (i > -1)
744 {
745 #if defined(__WXMAC__) && !defined(__DARWIN__)
746 // Classic or Carbon CodeWarrior like
747 // Carbon with Apple DevTools is Unix like
748 if (path[i] == wxT(':') )
749 {
750 buf[i] = 0;
751 return buf;
752 }
753 #else
754 // Unix like or Windows
755 if (path[i] == wxT('/') || path[i] == wxT('\\'))
756 {
757 buf[i] = 0;
758 return buf;
759 }
760 #endif
761 #ifdef __VMS__
762 if (path[i] == wxT(']'))
763 {
764 buf[i+1] = 0;
765 return buf;
766 }
767 #endif
768 i --;
769 }
770
771 #if defined(__WXMSW__) || defined(__WXPM__)
772 // Try Drive specifier
773 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
774 {
775 // A:junk --> A:. (since A:.\junk Not A:\junk)
776 buf[2] = wxT('.');
777 buf[3] = wxT('\0');
778 return buf;
779 }
780 #endif
781 }
782 return (wxChar *) NULL;
783 }
784
785 // Return just the directory, or NULL if no directory
786 wxString wxPathOnly (const wxString& path)
787 {
788 if (path != wxT(""))
789 {
790 wxChar buf[_MAXPATHLEN];
791
792 // Local copy
793 wxStrcpy (buf, WXSTRINGCAST path);
794
795 int l = path.Length();
796 int i = l - 1;
797
798 // Search backward for a backward or forward slash
799 while (i > -1)
800 {
801 #if defined(__WXMAC__) && !defined(__DARWIN__)
802 // Classic or Carbon CodeWarrior like
803 // Carbon with Apple DevTools is Unix like
804 if (path[i] == wxT(':') )
805 {
806 buf[i] = 0;
807 return wxString(buf);
808 }
809 #else
810 // Unix like or Windows
811 if (path[i] == wxT('/') || path[i] == wxT('\\'))
812 {
813 buf[i] = 0;
814 return wxString(buf);
815 }
816 #endif
817 #ifdef __VMS__
818 if (path[i] == wxT(']'))
819 {
820 buf[i+1] = 0;
821 return wxString(buf);
822 }
823 #endif
824 i --;
825 }
826
827 #if defined(__WXMSW__) || defined(__WXPM__)
828 // Try Drive specifier
829 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
830 {
831 // A:junk --> A:. (since A:.\junk Not A:\junk)
832 buf[2] = wxT('.');
833 buf[3] = wxT('\0');
834 return wxString(buf);
835 }
836 #endif
837 }
838 return wxString(wxT(""));
839 }
840
841 // Utility for converting delimiters in DOS filenames to UNIX style
842 // and back again - or we get nasty problems with delimiters.
843 // Also, convert to lower case, since case is significant in UNIX.
844
845 #if defined(__WXMAC__)
846 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
847 {
848 #ifdef __DARWIN__
849 int i;
850 int j;
851 OSErr theErr;
852 OSStatus theStatus;
853 Boolean isDirectory = false;
854 Str255 theParentPath = "\p";
855 FSSpec theParentSpec;
856 FSRef theParentRef;
857 char theFileName[FILENAME_MAX];
858 char thePath[FILENAME_MAX];
859
860 strcpy(thePath, "");
861
862 // GD: Separate file name from path and make a FSRef to the parent
863 // directory. This is necessary since FSRefs cannot reference files
864 // that have not yet been created.
865 // Based on example code from Apple Technical Note TN2022
866 // http://developer.apple.com/technotes/tn/tn2022.html
867
868 // check whether we are converting a directory
869 isDirectory = ((spec->name)[spec->name[0]] == ':');
870 // count length of file name
871 for (i = spec->name[0] - (isDirectory ? 1 : 0); ((spec->name[i] != ':') && (i > 0)); i--);
872 // copy file name
873 // prepend path separator since it will later be appended to the path
874 theFileName[0] = wxFILE_SEP_PATH;
875 for (j = i + 1; j <= spec->name[0] - (isDirectory ? 1 : 0); j++) {
876 theFileName[j - i] = spec->name[j];
877 }
878 theFileName[j - i] = '\0';
879 // copy path if any
880 for (j = 1; j <= i; j++) {
881 theParentPath[++theParentPath[0]] = spec->name[j];
882 }
883 theErr = FSMakeFSSpec(spec->vRefNum, spec->parID, theParentPath, &theParentSpec);
884 if (theErr == noErr) {
885 // convert the FSSpec to an FSRef
886 theErr = FSpMakeFSRef(&theParentSpec, &theParentRef);
887 }
888 if (theErr == noErr) {
889 // get the POSIX path associated with the FSRef
890 theStatus = FSRefMakePath(&theParentRef,
891 (UInt8 *)thePath, sizeof(thePath));
892 }
893 if (theStatus == noErr) {
894 // append file name to path
895 // includes previously prepended path separator
896 strcat(thePath, theFileName);
897 }
898
899 // create path string for return value
900 wxString result( thePath ) ;
901 #else
902 Handle myPath ;
903 short length ;
904
905 // get length of path and allocate handle
906 FSpGetFullPath( spec , &length , &myPath ) ;
907 ::SetHandleSize( myPath , length + 1 ) ;
908 ::HLock( myPath ) ;
909 (*myPath)[length] = 0 ;
910 if ((length > 0) && ((*myPath)[length-1] == ':'))
911 (*myPath)[length-1] = 0 ;
912
913 // create path string for return value
914 wxString result( (char*) *myPath ) ;
915
916 // free allocated handle
917 ::HUnlock( myPath ) ;
918 ::DisposeHandle( myPath ) ;
919 #endif
920
921 return result ;
922 }
923 #ifndef __DARWIN__
924 // Mac file names are POSIX (Unix style) under Darwin
925 // therefore the conversion functions below are not needed
926
927 static char sMacFileNameConversion[ 1000 ] ;
928
929 #endif
930 void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
931 {
932 OSStatus err = noErr ;
933 #ifdef __DARWIN__
934 FSRef theRef;
935
936 // get the FSRef associated with the POSIX path
937 err = FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
938 // convert the FSRef to an FSSpec
939 err = FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
940 #else
941 if ( strchr( path , ':' ) == NULL )
942 {
943 // try whether it is a volume / or a mounted volume
944 strncpy( sMacFileNameConversion , path , 1000 ) ;
945 sMacFileNameConversion[998] = 0 ;
946 strcat( sMacFileNameConversion , ":" ) ;
947 err = FSpLocationFromFullPath( strlen(sMacFileNameConversion) , sMacFileNameConversion , spec ) ;
948 }
949 else
950 {
951 err = FSpLocationFromFullPath( strlen(path) , path , spec ) ;
952 }
953 #endif
954 }
955
956 #ifndef __DARWIN__
957
958 wxString wxMac2UnixFilename (const char *str)
959 {
960 char *s = sMacFileNameConversion ;
961 strcpy( s , str ) ;
962 if (s)
963 {
964 memmove( s+1 , s ,strlen( s ) + 1) ;
965 if ( *s == ':' )
966 *s = '.' ;
967 else
968 *s = '/' ;
969
970 while (*s)
971 {
972 if (*s == ':')
973 *s = '/';
974 else
975 *s = wxTolower(*s); // Case INDEPENDENT
976 s++;
977 }
978 }
979 return wxString(sMacFileNameConversion) ;
980 }
981
982 wxString wxUnix2MacFilename (const char *str)
983 {
984 char *s = sMacFileNameConversion ;
985 strcpy( s , str ) ;
986 if (s)
987 {
988 if ( *s == '.' )
989 {
990 // relative path , since it goes on with slash which is translated to a :
991 memmove( s , s+1 ,strlen( s ) ) ;
992 }
993 else if ( *s == '/' )
994 {
995 // absolute path -> on mac just start with the drive name
996 memmove( s , s+1 ,strlen( s ) ) ;
997 }
998 else
999 {
1000 wxASSERT_MSG( 1 , "unkown path beginning" ) ;
1001 }
1002 while (*s)
1003 {
1004 if (*s == '/' || *s == '\\')
1005 {
1006 // convert any back-directory situations
1007 if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
1008 {
1009 *s = ':';
1010 memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
1011 }
1012 else
1013 *s = ':';
1014 }
1015 s++ ;
1016 }
1017 }
1018 return wxString (sMacFileNameConversion) ;
1019 }
1020
1021 wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
1022 {
1023 return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
1024 }
1025
1026 void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
1027 {
1028 wxString var = wxUnix2MacFilename( path ) ;
1029 wxMacFilename2FSSpec( var , spec ) ;
1030 }
1031 #endif // ! __DARWIN__
1032
1033 #endif // __WXMAC__
1034
1035 void
1036 wxDos2UnixFilename (char *s)
1037 {
1038 if (s)
1039 while (*s)
1040 {
1041 if (*s == '\\')
1042 *s = '/';
1043 #ifdef __WXMSW__
1044 else
1045 *s = wxTolower (*s); // Case INDEPENDENT
1046 #endif
1047 s++;
1048 }
1049 }
1050
1051 void
1052 #if defined(__WXMSW__) || defined(__WXPM__)
1053 wxUnix2DosFilename (wxChar *s)
1054 #else
1055 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
1056 #endif
1057 {
1058 // Yes, I really mean this to happen under DOS only! JACS
1059 #if defined(__WXMSW__) || defined(__WXPM__)
1060 if (s)
1061 while (*s)
1062 {
1063 if (*s == wxT('/'))
1064 *s = wxT('\\');
1065 s++;
1066 }
1067 #endif
1068 }
1069
1070 // Concatenate two files to form third
1071 bool
1072 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1073 {
1074 wxString outfile;
1075 if ( !wxGetTempFileName("cat", outfile) )
1076 return FALSE;
1077
1078 FILE *fp1 = (FILE *) NULL;
1079 FILE *fp2 = (FILE *) NULL;
1080 FILE *fp3 = (FILE *) NULL;
1081 // Open the inputs and outputs
1082 if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
1083 (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
1084 (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
1085 {
1086 if (fp1)
1087 fclose (fp1);
1088 if (fp2)
1089 fclose (fp2);
1090 if (fp3)
1091 fclose (fp3);
1092 return FALSE;
1093 }
1094
1095 int ch;
1096 while ((ch = getc (fp1)) != EOF)
1097 (void) putc (ch, fp3);
1098 fclose (fp1);
1099
1100 while ((ch = getc (fp2)) != EOF)
1101 (void) putc (ch, fp3);
1102 fclose (fp2);
1103
1104 fclose (fp3);
1105 bool result = wxRenameFile(outfile, file3);
1106 return result;
1107 }
1108
1109 // Copy files
1110 bool
1111 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1112 {
1113 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1114 // CopyFile() copies file attributes and modification time too, so use it
1115 // instead of our code if available
1116 //
1117 // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1118 if ( !::CopyFile(file1, file2, !overwrite) )
1119 {
1120 wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1121 file1.c_str(), file2.c_str());
1122
1123 return FALSE;
1124 }
1125 #elif defined(__WXPM__)
1126 if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
1127 return FALSE;
1128 #else // !Win32
1129
1130 wxStructStat fbuf;
1131 // get permissions of file1
1132 if ( wxStat( file1.c_str(), &fbuf) != 0 )
1133 {
1134 // the file probably doesn't exist or we haven't the rights to read
1135 // from it anyhow
1136 wxLogSysError(_("Impossible to get permissions for file '%s'"),
1137 file1.c_str());
1138 return FALSE;
1139 }
1140
1141 // open file1 for reading
1142 wxFile fileIn(file1, wxFile::read);
1143 if ( !fileIn.IsOpened() )
1144 return FALSE;
1145
1146 // remove file2, if it exists. This is needed for creating
1147 // file2 with the correct permissions in the next step
1148 if ( wxFileExists(file2) && (!overwrite || !wxRemoveFile(file2)))
1149 {
1150 wxLogSysError(_("Impossible to overwrite the file '%s'"),
1151 file2.c_str());
1152 return FALSE;
1153 }
1154
1155 #ifdef __UNIX__
1156 // reset the umask as we want to create the file with exactly the same
1157 // permissions as the original one
1158 mode_t oldUmask = umask( 0 );
1159 #endif // __UNIX__
1160
1161 // create file2 with the same permissions than file1 and open it for
1162 // writing
1163
1164 wxFile fileOut;
1165 if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1166 return FALSE;
1167
1168 #ifdef __UNIX__
1169 /// restore the old umask
1170 umask(oldUmask);
1171 #endif // __UNIX__
1172
1173 // copy contents of file1 to file2
1174 char buf[4096];
1175 size_t count;
1176 for ( ;; )
1177 {
1178 count = fileIn.Read(buf, WXSIZEOF(buf));
1179 if ( fileIn.Error() )
1180 return FALSE;
1181
1182 // end of file?
1183 if ( !count )
1184 break;
1185
1186 if ( fileOut.Write(buf, count) < count )
1187 return FALSE;
1188 }
1189
1190 // we can expect fileIn to be closed successfully, but we should ensure
1191 // that fileOut was closed as some write errors (disk full) might not be
1192 // detected before doing this
1193 if ( !fileIn.Close() || !fileOut.Close() )
1194 return FALSE;
1195
1196 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1197 // no chmod in VA. Should be some permission API for HPFS386 partitions
1198 // however
1199 if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1200 {
1201 wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1202 file2.c_str());
1203 return FALSE;
1204 }
1205 #endif // OS/2 || Mac
1206 #endif // __WXMSW__ && __WIN32__
1207
1208 return TRUE;
1209 }
1210
1211 bool
1212 wxRenameFile (const wxString& file1, const wxString& file2)
1213 {
1214 // Normal system call
1215 if ( wxRename (file1, file2) == 0 )
1216 return TRUE;
1217
1218 // Try to copy
1219 if (wxCopyFile(file1, file2)) {
1220 wxRemoveFile(file1);
1221 return TRUE;
1222 }
1223 // Give up
1224 return FALSE;
1225 }
1226
1227 bool wxRemoveFile(const wxString& file)
1228 {
1229 #if defined(__VISUALC__) \
1230 || defined(__BORLANDC__) \
1231 || defined(__WATCOMC__) \
1232 || defined(__GNUWIN32__)
1233 int res = wxRemove(file);
1234 #else
1235 int res = unlink(OS_FILENAME(file));
1236 #endif
1237
1238 return res == 0;
1239 }
1240
1241 bool wxMkdir(const wxString& dir, int perm)
1242 {
1243 #if defined(__WXMAC__) && !defined(__UNIX__)
1244 return (mkdir( dir , 0 ) == 0);
1245 #else // !Mac
1246 const wxChar *dirname = dir.c_str();
1247
1248 // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1249 // for the GNU compiler
1250 #if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__) || defined(__WXMICROWIN__)
1251 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1252 #elif defined(__WXPM__)
1253 if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1254 #elif defined(__DOS__)
1255 #if defined(__WATCOMC__)
1256 (void)perm;
1257 if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1258 #elif defined(__DJGPP__)
1259 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1260 #else
1261 #error "Unsupported DOS compiler!"
1262 #endif
1263 #else // !MSW, !DOS and !OS/2 VAC++
1264 (void)perm;
1265 if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1266 #endif // !MSW/MSW
1267 {
1268 wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1269
1270 return FALSE;
1271 }
1272
1273 return TRUE;
1274 #endif // Mac/!Mac
1275 }
1276
1277 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1278 {
1279 #ifdef __VMS__
1280 return FALSE; //to be changed since rmdir exists in VMS7.x
1281 #elif defined(__WXPM__)
1282 return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1283 #else
1284
1285 #ifdef __SALFORDC__
1286 return FALSE; // What to do?
1287 #else
1288 return (wxRmDir(OS_FILENAME(dir)) == 0);
1289 #endif
1290
1291 #endif
1292 }
1293
1294 // does the path exists? (may have or not '/' or '\\' at the end)
1295 bool wxPathExists(const wxChar *pszPathName)
1296 {
1297 wxString strPath(pszPathName);
1298
1299 #ifdef __WINDOWS__
1300 // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1301 // so remove all trailing backslashes from the path - but don't do this for
1302 // the pathes "d:\" (which are different from "d:") nor for just "\"
1303 while ( wxEndsWithPathSeparator(strPath) )
1304 {
1305 size_t len = strPath.length();
1306 if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1307 break;
1308
1309 strPath.Truncate(len - 1);
1310 }
1311 #endif // __WINDOWS__
1312
1313 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1314 // stat() can't cope with network paths
1315 DWORD ret = ::GetFileAttributes(strPath);
1316
1317 return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1318 #else // !__WIN32__
1319
1320 wxStructStat st;
1321 #ifndef __VISAGECPP__
1322 return wxStat(pszPathName, &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1323 #else
1324 // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1325 return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1326 #endif
1327
1328 #endif // __WIN32__/!__WIN32__
1329 }
1330
1331 // Get a temporary filename, opening and closing the file.
1332 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1333 {
1334 wxString filename = wxFileName::CreateTempFileName(prefix);
1335 if ( filename.empty() )
1336 return NULL;
1337
1338 if ( buf )
1339 wxStrcpy(buf, filename);
1340 else
1341 buf = copystring(filename);
1342
1343 return buf;
1344 }
1345
1346 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1347 {
1348 buf = wxFileName::CreateTempFileName(prefix);
1349
1350 return !buf.empty();
1351 }
1352
1353 // Get first file name matching given wild card.
1354
1355 static wxDir *gs_dir = NULL;
1356 static wxString gs_dirPath;
1357
1358 wxString wxFindFirstFile(const wxChar *spec, int flags)
1359 {
1360 wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1361 if ( gs_dirPath.IsEmpty() )
1362 gs_dirPath = wxT(".");
1363 if ( gs_dirPath.Last() != wxFILE_SEP_PATH )
1364 gs_dirPath << wxFILE_SEP_PATH;
1365
1366 if (gs_dir)
1367 delete gs_dir;
1368 gs_dir = new wxDir(gs_dirPath);
1369
1370 if ( !gs_dir->IsOpened() )
1371 {
1372 wxLogSysError(_("Can not enumerate files '%s'"), spec);
1373 return wxEmptyString;
1374 }
1375
1376 int dirFlags = 0;
1377 switch (flags)
1378 {
1379 case wxDIR: dirFlags = wxDIR_DIRS; break;
1380 case wxFILE: dirFlags = wxDIR_FILES; break;
1381 default: dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1382 }
1383
1384 wxString result;
1385 gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1386 if ( result.IsEmpty() )
1387 {
1388 wxDELETE(gs_dir);
1389 return result;
1390 }
1391
1392 return gs_dirPath + result;
1393 }
1394
1395 wxString wxFindNextFile()
1396 {
1397 wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1398
1399 wxString result;
1400 gs_dir->GetNext(&result);
1401
1402 if ( result.IsEmpty() )
1403 {
1404 wxDELETE(gs_dir);
1405 return result;
1406 }
1407
1408 return gs_dirPath + result;
1409 }
1410
1411
1412 // Get current working directory.
1413 // If buf is NULL, allocates space using new, else
1414 // copies into buf.
1415 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1416 {
1417 if ( !buf )
1418 {
1419 buf = new wxChar[sz + 1];
1420 }
1421
1422 bool ok = FALSE;
1423
1424 // for the compilers which have Unicode version of _getcwd(), call it
1425 // directly, for the others call the ANSI version and do the translation
1426 #if !wxUSE_UNICODE
1427 #define cbuf buf
1428 #else // wxUSE_UNICODE
1429 bool needsANSI = TRUE;
1430
1431 #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1432 // This is not legal code as the compiler
1433 // is allowed destroy the wxCharBuffer.
1434 // wxCharBuffer c_buffer(sz);
1435 // char *cbuf = (char*)(const char*)c_buffer;
1436 char cbuf[_MAXPATHLEN];
1437 #endif
1438
1439 #ifdef HAVE_WGETCWD
1440 #if wxUSE_UNICODE_MSLU
1441 if ( wxGetOsVersion() != wxWIN95 )
1442 #else
1443 char *cbuf = NULL; // never really used because needsANSI will always be FALSE
1444 #endif
1445 {
1446 ok = _wgetcwd(buf, sz) != NULL;
1447 needsANSI = FALSE;
1448 }
1449 #endif
1450
1451 if ( needsANSI )
1452 #endif // wxUSE_UNICODE
1453 {
1454 #ifdef _MSC_VER
1455 ok = _getcwd(cbuf, sz) != NULL;
1456 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1457 FSSpec cwdSpec ;
1458 FCBPBRec pb;
1459 OSErr error;
1460 Str255 fileName ;
1461 pb.ioNamePtr = (StringPtr) &fileName;
1462 pb.ioVRefNum = 0;
1463 pb.ioRefNum = LMGetCurApRefNum();
1464 pb.ioFCBIndx = 0;
1465 error = PBGetFCBInfoSync(&pb);
1466 if ( error == noErr )
1467 {
1468 cwdSpec.vRefNum = pb.ioFCBVRefNum;
1469 cwdSpec.parID = pb.ioFCBParID;
1470 cwdSpec.name[0] = 0 ;
1471 wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
1472
1473 strcpy( cbuf , res ) ;
1474 cbuf[res.length()]=0 ;
1475
1476 ok = TRUE;
1477 }
1478 else
1479 {
1480 ok = FALSE;
1481 }
1482 #elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
1483 APIRET rc;
1484 rc = ::DosQueryCurrentDir( 0 // current drive
1485 ,cbuf
1486 ,(PULONG)&sz
1487 );
1488 ok = rc != 0;
1489 #else // !Win32/VC++ !Mac !OS2
1490 ok = getcwd(cbuf, sz) != NULL;
1491 #endif // platform
1492
1493 #if wxUSE_UNICODE
1494 // finally convert the result to Unicode if needed
1495 wxConvFile.MB2WC(buf, cbuf, sz);
1496 #endif // wxUSE_UNICODE
1497 }
1498
1499 if ( !ok )
1500 {
1501 wxLogSysError(_("Failed to get the working directory"));
1502
1503 // VZ: the old code used to return "." on error which didn't make any
1504 // sense at all to me - empty string is a better error indicator
1505 // (NULL might be even better but I'm afraid this could lead to
1506 // problems with the old code assuming the return is never NULL)
1507 buf[0] = _T('\0');
1508 }
1509 else // ok, but we might need to massage the path into the right format
1510 {
1511 #ifdef __DJGPP__
1512 // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1513 // with / deliminers. We don't like that.
1514 for (wxChar *ch = buf; *ch; ch++)
1515 {
1516 if (*ch == wxT('/'))
1517 *ch = wxT('\\');
1518 }
1519 #endif // __DJGPP__
1520
1521 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1522 // he needs Unix as opposed to Win32 pathnames
1523 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1524 // another example of DOS/Unix mix (Cygwin)
1525 wxString pathUnix = buf;
1526 cygwin_conv_to_full_win32_path(pathUnix, buf);
1527 #endif // __CYGWIN__
1528 }
1529
1530 return buf;
1531
1532 #if !wxUSE_UNICODE
1533 #undef cbuf
1534 #endif
1535 }
1536
1537 wxString wxGetCwd()
1538 {
1539 wxChar *buffer = new wxChar[_MAXPATHLEN];
1540 wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1541 wxString str( buffer );
1542 delete [] buffer;
1543
1544 return str;
1545 }
1546
1547 bool wxSetWorkingDirectory(const wxString& d)
1548 {
1549 #if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1550 return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1551 #elif defined(__WXPM__)
1552 return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1553 #elif defined(__WINDOWS__)
1554
1555 #ifdef __WIN32__
1556 return (bool)(SetCurrentDirectory(d) != 0);
1557 #else
1558 // Must change drive, too.
1559 bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1560 if (isDriveSpec)
1561 {
1562 wxChar firstChar = d[0];
1563
1564 // To upper case
1565 if (firstChar > 90)
1566 firstChar = firstChar - 32;
1567
1568 // To a drive number
1569 unsigned int driveNo = firstChar - 64;
1570 if (driveNo > 0)
1571 {
1572 unsigned int noDrives;
1573 _dos_setdrive(driveNo, &noDrives);
1574 }
1575 }
1576 bool success = (chdir(WXSTRINGCAST d) == 0);
1577
1578 return success;
1579 #endif
1580
1581 #endif
1582 }
1583
1584 // Get the OS directory if appropriate (such as the Windows directory).
1585 // On non-Windows platform, probably just return the empty string.
1586 wxString wxGetOSDirectory()
1587 {
1588 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1589 wxChar buf[256];
1590 GetWindowsDirectory(buf, 256);
1591 return wxString(buf);
1592 #else
1593 return wxEmptyString;
1594 #endif
1595 }
1596
1597 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1598 {
1599 size_t len = wxStrlen(pszFileName);
1600
1601 return len && wxIsPathSeparator(pszFileName[len - 1]);
1602 }
1603
1604 // find a file in a list of directories, returns false if not found
1605 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1606 {
1607 // we assume that it's not empty
1608 wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
1609 _T("empty file name in wxFindFileInPath"));
1610
1611 // skip path separator in the beginning of the file name if present
1612 if ( wxIsPathSeparator(*pszFile) )
1613 pszFile++;
1614
1615 // copy the path (strtok will modify it)
1616 wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1617 wxStrcpy(szPath, pszPath);
1618
1619 wxString strFile;
1620 wxChar *pc, *save_ptr;
1621 for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1622 pc != NULL;
1623 pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1624 {
1625 // search for the file in this directory
1626 strFile = pc;
1627 if ( !wxEndsWithPathSeparator(pc) )
1628 strFile += wxFILE_SEP_PATH;
1629 strFile += pszFile;
1630
1631 if ( FileExists(strFile) ) {
1632 *pStr = strFile;
1633 break;
1634 }
1635 }
1636
1637 // suppress warning about unused variable save_ptr when wxStrtok() is a
1638 // macro which throws away its third argument
1639 save_ptr = pc;
1640
1641 delete [] szPath;
1642
1643 return pc != NULL; // if true => we breaked from the loop
1644 }
1645
1646 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1647 wxString *pstrPath,
1648 wxString *pstrName,
1649 wxString *pstrExt)
1650 {
1651 // it can be empty, but it shouldn't be NULL
1652 wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1653
1654 wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1655 }
1656
1657 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1658 {
1659 wxStructStat buf;
1660 wxStat( filename, &buf);
1661
1662 return buf.st_mtime;
1663 }
1664
1665
1666 //------------------------------------------------------------------------
1667 // wild character routines
1668 //------------------------------------------------------------------------
1669
1670 bool wxIsWild( const wxString& pattern )
1671 {
1672 wxString tmp = pattern;
1673 wxChar *pat = WXSTRINGCAST(tmp);
1674 while (*pat) {
1675 switch (*pat++) {
1676 case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1677 return TRUE;
1678 case wxT('\\'):
1679 if (!*pat++)
1680 return FALSE;
1681 }
1682 }
1683 return FALSE;
1684 };
1685
1686 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1687
1688 #ifdef HAVE_FNMATCH
1689 {
1690 // this probably won't work well for multibyte chars in Unicode mode?
1691 if(dot_special)
1692 return fnmatch(pat.fn_str(), text.fn_str(), FNM_PERIOD) == 0;
1693 else
1694 return fnmatch(pat.fn_str(), text.fn_str(), 0) == 0;
1695 }
1696 #else // !HAVE_FNMATCH
1697
1698 // #pragma error Broken implementation of wxMatchWild() -- needs fixing!
1699
1700 /*
1701 * WARNING: this code is broken!
1702 */
1703 {
1704 wxString tmp1 = pat;
1705 wxChar *pattern = WXSTRINGCAST(tmp1);
1706 wxString tmp2 = text;
1707 wxChar *str = WXSTRINGCAST(tmp2);
1708 wxChar c;
1709 wxChar *cp;
1710 bool done = FALSE, ret_code, ok;
1711 // Below is for vi fans
1712 const wxChar OB = wxT('{'), CB = wxT('}');
1713
1714 // dot_special means '.' only matches '.'
1715 if (dot_special && *str == wxT('.') && *pattern != *str)
1716 return FALSE;
1717
1718 while ((*pattern != wxT('\0')) && (!done)
1719 && (((*str==wxT('\0'))&&((*pattern==OB)||(*pattern==wxT('*'))))||(*str!=wxT('\0')))) {
1720 switch (*pattern) {
1721 case wxT('\\'):
1722 pattern++;
1723 if (*pattern != wxT('\0'))
1724 pattern++;
1725 break;
1726 case wxT('*'):
1727 pattern++;
1728 ret_code = FALSE;
1729 while ((*str!=wxT('\0'))
1730 && ((ret_code=wxMatchWild(pattern, str++, FALSE)) == 0))
1731 /*loop*/;
1732 if (ret_code) {
1733 while (*str != wxT('\0'))
1734 str++;
1735 while (*pattern != wxT('\0'))
1736 pattern++;
1737 }
1738 break;
1739 case wxT('['):
1740 pattern++;
1741 repeat:
1742 if ((*pattern == wxT('\0')) || (*pattern == wxT(']'))) {
1743 done = TRUE;
1744 break;
1745 }
1746 if (*pattern == wxT('\\')) {
1747 pattern++;
1748 if (*pattern == wxT('\0')) {
1749 done = TRUE;
1750 break;
1751 }
1752 }
1753 if (*(pattern + 1) == wxT('-')) {
1754 c = *pattern;
1755 pattern += 2;
1756 if (*pattern == wxT(']')) {
1757 done = TRUE;
1758 break;
1759 }
1760 if (*pattern == wxT('\\')) {
1761 pattern++;
1762 if (*pattern == wxT('\0')) {
1763 done = TRUE;
1764 break;
1765 }
1766 }
1767 if ((*str < c) || (*str > *pattern)) {
1768 pattern++;
1769 goto repeat;
1770 }
1771 } else if (*pattern != *str) {
1772 pattern++;
1773 goto repeat;
1774 }
1775 pattern++;
1776 while ((*pattern != wxT(']')) && (*pattern != wxT('\0'))) {
1777 if ((*pattern == wxT('\\')) && (*(pattern + 1) != wxT('\0')))
1778 pattern++;
1779 pattern++;
1780 }
1781 if (*pattern != wxT('\0')) {
1782 pattern++, str++;
1783 }
1784 break;
1785 case wxT('?'):
1786 pattern++;
1787 str++;
1788 break;
1789 case OB:
1790 pattern++;
1791 while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1792 cp = str;
1793 ok = TRUE;
1794 while (ok && (*cp != wxT('\0')) && (*pattern != wxT('\0'))
1795 && (*pattern != wxT(',')) && (*pattern != CB)) {
1796 if (*pattern == wxT('\\'))
1797 pattern++;
1798 ok = (*pattern++ == *cp++);
1799 }
1800 if (*pattern == wxT('\0')) {
1801 ok = FALSE;
1802 done = TRUE;
1803 break;
1804 } else if (ok) {
1805 str = cp;
1806 while ((*pattern != CB) && (*pattern != wxT('\0'))) {
1807 if (*++pattern == wxT('\\')) {
1808 if (*++pattern == CB)
1809 pattern++;
1810 }
1811 }
1812 } else {
1813 while (*pattern!=CB && *pattern!=wxT(',') && *pattern!=wxT('\0')) {
1814 if (*++pattern == wxT('\\')) {
1815 if (*++pattern == CB || *pattern == wxT(','))
1816 pattern++;
1817 }
1818 }
1819 }
1820 if (*pattern != wxT('\0'))
1821 pattern++;
1822 }
1823 break;
1824 default:
1825 if (*str == *pattern) {
1826 str++, pattern++;
1827 } else {
1828 done = TRUE;
1829 }
1830 }
1831 }
1832 while (*pattern == wxT('*'))
1833 pattern++;
1834 return ((*str == wxT('\0')) && (*pattern == wxT('\0')));
1835 };
1836
1837 #endif // HAVE_FNMATCH/!HAVE_FNMATCH
1838
1839 #ifdef __VISUALC__
1840 #pragma warning(default:4706) // assignment within conditional expression
1841 #endif // VC++
wxWidgets (Impactor)