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reimplemented wxFileModificationTime() for CE without using wxDateTime (it also shoul...
[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 licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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" // This does include filefn.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 "wx/log.h"
58
59 #ifdef __WINDOWS__
60 #include "wx/msw/private.h"
61 #include "wx/msw/mslu.h"
62
63 // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
64 //
65 // note that it must be included after <windows.h>
66 #ifdef __GNUWIN32__
67 #ifdef __CYGWIN__
68 #include <sys/cygwin.h>
69 #endif
70 #endif // __GNUWIN32__
71
72 // io.h is needed for _get_osfhandle()
73 // Already included by filefn.h for many Windows compilers
74 #if defined __MWERKS__ || defined __CYGWIN__
75 #include <io.h>
76 #endif
77 #endif // __WINDOWS__
78
79 #if defined(__VMS__)
80 #include <fab.h>
81 #endif
82
83 // TODO: Borland probably has _wgetcwd as well?
84 #ifdef _MSC_VER
85 #define HAVE_WGETCWD
86 #endif
87
88 // ----------------------------------------------------------------------------
89 // constants
90 // ----------------------------------------------------------------------------
91
92 #ifndef _MAXPATHLEN
93 #define _MAXPATHLEN 1024
94 #endif
95
96 #ifdef __WXMAC__
97 # include "MoreFilesX.h"
98 #endif
99
100 // ----------------------------------------------------------------------------
101 // private globals
102 // ----------------------------------------------------------------------------
103
104 // MT-FIXME: get rid of this horror and all code using it
105 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
106
107 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
108 //
109 // VisualAge C++ V4.0 cannot have any external linkage const decs
110 // in headers included by more than one primary source
111 //
112 const int wxInvalidOffset = -1;
113 #endif
114
115 // ----------------------------------------------------------------------------
116 // macros
117 // ----------------------------------------------------------------------------
118
119 // we need to translate Mac filenames before passing them to OS functions
120 #define OS_FILENAME(s) (s.fn_str())
121
122 // ============================================================================
123 // implementation
124 // ============================================================================
125
126 #ifdef wxNEED_WX_UNISTD_H
127
128 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
129 {
130 return stat( wxConvFile.cWX2MB( file_name ), buf );
131 }
132
133 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
134 {
135 return access( wxConvFile.cWX2MB( pathname ), mode );
136 }
137
138 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
139 {
140 return open( wxConvFile.cWX2MB( pathname ), flags, mode );
141 }
142
143 #endif
144 // wxNEED_WX_UNISTD_H
145
146 // ----------------------------------------------------------------------------
147 // wxPathList
148 // ----------------------------------------------------------------------------
149
150 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
151
152 static inline wxChar* MYcopystring(const wxString& s)
153 {
154 wxChar* copy = new wxChar[s.length() + 1];
155 return wxStrcpy(copy, s.c_str());
156 }
157
158 static inline wxChar* MYcopystring(const wxChar* s)
159 {
160 wxChar* copy = new wxChar[wxStrlen(s) + 1];
161 return wxStrcpy(copy, s);
162 }
163
164 void wxPathList::Add (const wxString& path)
165 {
166 wxStringList::Add (WXSTRINGCAST path);
167 }
168
169 // Add paths e.g. from the PATH environment variable
170 void wxPathList::AddEnvList (const wxString& envVariable)
171 {
172 // No environment variables on WinCE
173 #ifndef __WXWINCE__
174 static const wxChar PATH_TOKS[] =
175 #if defined(__WINDOWS__) || defined(__OS2__)
176 /*
177 The space has been removed from the tokenizers, otherwise a
178 path such as "C:\Program Files" would be split into 2 paths:
179 "C:\Program" and "Files"
180 */
181 // wxT(" ;"); // Don't separate with colon in DOS (used for drive)
182 wxT(";"); // Don't separate with colon in DOS (used for drive)
183 #else
184 wxT(" :;");
185 #endif
186
187 wxString val ;
188 if (wxGetEnv (WXSTRINGCAST envVariable, &val))
189 {
190 wxChar *s = MYcopystring (val);
191 wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
192
193 if (token)
194 {
195 Add(token);
196 while (token)
197 {
198 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
199 != NULL )
200 {
201 Add(token);
202 }
203 }
204 }
205
206 // suppress warning about unused variable save_ptr when wxStrtok() is a
207 // macro which throws away its third argument
208 save_ptr = token;
209
210 delete [] s;
211 }
212 #else // __WXWINCE__
213 wxUnusedVar(envVariable);
214 #endif // !__WXWINCE__/__WXWINCE__
215 }
216
217 // Given a full filename (with path), ensure that that file can
218 // be accessed again USING FILENAME ONLY by adding the path
219 // to the list if not already there.
220 void wxPathList::EnsureFileAccessible (const wxString& path)
221 {
222 wxString path_only(wxPathOnly(path));
223 if ( !path_only.empty() )
224 {
225 if ( !Member(path_only) )
226 Add(path_only);
227 }
228 }
229
230 bool wxPathList::Member (const wxString& path)
231 {
232 for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
233 {
234 wxString path2( node->GetData() );
235 if (
236 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined(__WXMAC__)
237 // Case INDEPENDENT
238 path.CompareTo (path2, wxString::ignoreCase) == 0
239 #else
240 // Case sensitive File System
241 path.CompareTo (path2) == 0
242 #endif
243 )
244 return true;
245 }
246 return false;
247 }
248
249 wxString wxPathList::FindValidPath (const wxString& file)
250 {
251 if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
252 return wxString(wxFileFunctionsBuffer);
253
254 wxChar buf[_MAXPATHLEN];
255 wxStrcpy(buf, wxFileFunctionsBuffer);
256
257 wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
258
259 for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
260 {
261 const wxChar *path = node->GetData();
262 wxStrcpy (wxFileFunctionsBuffer, path);
263 wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
264 if (ch != wxT('\\') && ch != wxT('/'))
265 wxStrcat (wxFileFunctionsBuffer, wxT("/"));
266 wxStrcat (wxFileFunctionsBuffer, filename);
267 #ifdef __WINDOWS__
268 wxUnix2DosFilename (wxFileFunctionsBuffer);
269 #endif
270 if (wxFileExists (wxFileFunctionsBuffer))
271 {
272 return wxString(wxFileFunctionsBuffer); // Found!
273 }
274 } // for()
275
276 return wxEmptyString; // Not found
277 }
278
279 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
280 {
281 wxString f = FindValidPath(file);
282 if ( f.empty() || wxIsAbsolutePath(f) )
283 return f;
284
285 wxString buf;
286 wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
287
288 if ( !wxEndsWithPathSeparator(buf) )
289 {
290 buf += wxFILE_SEP_PATH;
291 }
292 buf += f;
293
294 return buf;
295 }
296
297 bool
298 wxFileExists (const wxString& filename)
299 {
300 #if defined(__WXPALMOS__)
301 return false;
302 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
303 // we must use GetFileAttributes() instead of the ANSI C functions because
304 // it can cope with network (UNC) paths unlike them
305 DWORD ret = ::GetFileAttributes(filename);
306
307 return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
308 #else // !__WIN32__
309 wxStructStat st;
310 #ifndef wxNEED_WX_UNISTD_H
311 return wxStat( filename.fn_str() , &st) == 0 && (st.st_mode & S_IFREG);
312 #else
313 return wxStat( filename , &st) == 0 && (st.st_mode & S_IFREG);
314 #endif
315 #endif // __WIN32__/!__WIN32__
316 }
317
318 bool
319 wxIsAbsolutePath (const wxString& filename)
320 {
321 if (!filename.empty())
322 {
323 #if defined(__WXMAC__) && !defined(__DARWIN__)
324 // Classic or Carbon CodeWarrior like
325 // Carbon with Apple DevTools is Unix like
326
327 // This seems wrong to me, but there is no fix. since
328 // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
329 // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
330 if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
331 return true ;
332 #else
333 // Unix like or Windows
334 if (filename[0] == wxT('/'))
335 return true;
336 #endif
337 #ifdef __VMS__
338 if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
339 return true;
340 #endif
341 #if defined(__WINDOWS__) || defined(__OS2__)
342 // MSDOS like
343 if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
344 return true;
345 #endif
346 }
347 return false ;
348 }
349
350 /*
351 * Strip off any extension (dot something) from end of file,
352 * IF one exists. Inserts zero into buffer.
353 *
354 */
355
356 void wxStripExtension(wxChar *buffer)
357 {
358 int len = wxStrlen(buffer);
359 int i = len-1;
360 while (i > 0)
361 {
362 if (buffer[i] == wxT('.'))
363 {
364 buffer[i] = 0;
365 break;
366 }
367 i --;
368 }
369 }
370
371 void wxStripExtension(wxString& buffer)
372 {
373 //RN: Be careful about the handling the case where
374 //buffer.Length() == 0
375 for(size_t i = buffer.Length() - 1; i != wxString::npos; --i)
376 {
377 if (buffer.GetChar(i) == wxT('.'))
378 {
379 buffer = buffer.Left(i);
380 break;
381 }
382 }
383 }
384
385 // Destructive removal of /./ and /../ stuff
386 wxChar *wxRealPath (wxChar *path)
387 {
388 #ifdef __WXMSW__
389 static const wxChar SEP = wxT('\\');
390 wxUnix2DosFilename(path);
391 #else
392 static const wxChar SEP = wxT('/');
393 #endif
394 if (path[0] && path[1]) {
395 /* MATTHEW: special case "/./x" */
396 wxChar *p;
397 if (path[2] == SEP && path[1] == wxT('.'))
398 p = &path[0];
399 else
400 p = &path[2];
401 for (; *p; p++)
402 {
403 if (*p == SEP)
404 {
405 if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
406 {
407 wxChar *q;
408 for (q = p - 1; q >= path && *q != SEP; q--)
409 {
410 // Empty
411 }
412
413 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
414 && (q - 1 <= path || q[-1] != SEP))
415 {
416 wxStrcpy (q, p + 3);
417 if (path[0] == wxT('\0'))
418 {
419 path[0] = SEP;
420 path[1] = wxT('\0');
421 }
422 #if defined(__WXMSW__) || defined(__OS2__)
423 /* Check that path[2] is NULL! */
424 else if (path[1] == wxT(':') && !path[2])
425 {
426 path[2] = SEP;
427 path[3] = wxT('\0');
428 }
429 #endif
430 p = q - 1;
431 }
432 }
433 else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
434 wxStrcpy (p, p + 2);
435 }
436 }
437 }
438 return path;
439 }
440
441 // Must be destroyed
442 wxChar *wxCopyAbsolutePath(const wxString& filename)
443 {
444 if (filename.empty())
445 return (wxChar *) NULL;
446
447 if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
448 wxChar buf[_MAXPATHLEN];
449 buf[0] = wxT('\0');
450 wxGetWorkingDirectory(buf, WXSIZEOF(buf));
451 wxChar ch = buf[wxStrlen(buf) - 1];
452 #ifdef __WXMSW__
453 if (ch != wxT('\\') && ch != wxT('/'))
454 wxStrcat(buf, wxT("\\"));
455 #else
456 if (ch != wxT('/'))
457 wxStrcat(buf, wxT("/"));
458 #endif
459 wxStrcat(buf, wxFileFunctionsBuffer);
460 return MYcopystring( wxRealPath(buf) );
461 }
462 return MYcopystring( wxFileFunctionsBuffer );
463 }
464
465 /*-
466 Handles:
467 ~/ => home dir
468 ~user/ => user's home dir
469 If the environment variable a = "foo" and b = "bar" then:
470 Unix:
471 $a => foo
472 $a$b => foobar
473 $a.c => foo.c
474 xxx$a => xxxfoo
475 ${a}! => foo!
476 $(b)! => bar!
477 \$a => \$a
478 MSDOS:
479 $a ==> $a
480 $(a) ==> foo
481 $(a)$b ==> foo$b
482 $(a)$(b)==> foobar
483 test.$$ ==> test.$$
484 */
485
486 /* input name in name, pathname output to buf. */
487
488 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
489 {
490 register wxChar *d, *s, *nm;
491 wxChar lnm[_MAXPATHLEN];
492 int q;
493
494 // Some compilers don't like this line.
495 // const wxChar trimchars[] = wxT("\n \t");
496
497 wxChar trimchars[4];
498 trimchars[0] = wxT('\n');
499 trimchars[1] = wxT(' ');
500 trimchars[2] = wxT('\t');
501 trimchars[3] = 0;
502
503 #ifdef __WXMSW__
504 const wxChar SEP = wxT('\\');
505 #else
506 const wxChar SEP = wxT('/');
507 #endif
508 buf[0] = wxT('\0');
509 if (name == NULL || *name == wxT('\0'))
510 return buf;
511 nm = MYcopystring(name); // Make a scratch copy
512 wxChar *nm_tmp = nm;
513
514 /* Skip leading whitespace and cr */
515 while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
516 nm++;
517 /* And strip off trailing whitespace and cr */
518 s = nm + (q = wxStrlen(nm)) - 1;
519 while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
520 *s = wxT('\0');
521
522 s = nm;
523 d = lnm;
524 #ifdef __WXMSW__
525 q = FALSE;
526 #else
527 q = nm[0] == wxT('\\') && nm[1] == wxT('~');
528 #endif
529
530 /* Expand inline environment variables */
531 #ifdef __VISAGECPP__
532 while (*d)
533 {
534 *d++ = *s;
535 if(*s == wxT('\\'))
536 {
537 *(d - 1) = *++s;
538 if (*d)
539 {
540 s++;
541 continue;
542 }
543 else
544 break;
545 }
546 else
547 #else
548 while ((*d++ = *s) != 0) {
549 # ifndef __WXMSW__
550 if (*s == wxT('\\')) {
551 if ((*(d - 1) = *++s)) {
552 s++;
553 continue;
554 } else
555 break;
556 } else
557 # endif
558 #endif
559 // No env variables on WinCE
560 #ifndef __WXWINCE__
561 #ifdef __WXMSW__
562 if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
563 #else
564 if (*s++ == wxT('$'))
565 #endif
566 {
567 register wxChar *start = d;
568 register int braces = (*s == wxT('{') || *s == wxT('('));
569 register wxChar *value;
570 while ((*d++ = *s) != 0)
571 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
572 break;
573 else
574 s++;
575 *--d = 0;
576 value = wxGetenv(braces ? start + 1 : start);
577 if (value) {
578 for ((d = start - 1); (*d++ = *value++) != 0;)
579 {
580 // Empty
581 }
582
583 d--;
584 if (braces && *s)
585 s++;
586 }
587 }
588 #endif
589 // __WXWINCE__
590 }
591
592 /* Expand ~ and ~user */
593 nm = lnm;
594 if (nm[0] == wxT('~') && !q)
595 {
596 /* prefix ~ */
597 if (nm[1] == SEP || nm[1] == 0)
598 { /* ~/filename */
599 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
600 if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
601 if (*++nm)
602 nm++;
603 }
604 } else
605 { /* ~user/filename */
606 register wxChar *nnm;
607 register wxChar *home;
608 for (s = nm; *s && *s != SEP; s++)
609 {
610 // Empty
611 }
612 int was_sep; /* MATTHEW: Was there a separator, or NULL? */
613 was_sep = (*s == SEP);
614 nnm = *s ? s + 1 : s;
615 *s = 0;
616 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
617 if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
618 if (was_sep) /* replace only if it was there: */
619 *s = SEP;
620 s = NULL;
621 } else {
622 nm = nnm;
623 s = home;
624 }
625 }
626 }
627
628 d = buf;
629 if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
630 /* Copy home dir */
631 while (wxT('\0') != (*d++ = *s++))
632 /* loop */;
633 // Handle root home
634 if (d - 1 > buf && *(d - 2) != SEP)
635 *(d - 1) = SEP;
636 }
637 s = nm;
638 while ((*d++ = *s++) != 0)
639 {
640 // Empty
641 }
642 delete[] nm_tmp; // clean up alloc
643 /* Now clean up the buffer */
644 return wxRealPath(buf);
645 }
646
647 /* Contract Paths to be build upon an environment variable
648 component:
649
650 example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
651
652 The call wxExpandPath can convert these back!
653 */
654 wxChar *
655 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
656 {
657 static wxChar dest[_MAXPATHLEN];
658
659 if (filename.empty())
660 return (wxChar *) NULL;
661
662 wxStrcpy (dest, WXSTRINGCAST filename);
663 #ifdef __WXMSW__
664 wxUnix2DosFilename(dest);
665 #endif
666
667 // Handle environment
668 const wxChar *val;
669 #ifndef __WXWINCE__
670 wxChar *tcp;
671 if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
672 (tcp = wxStrstr (dest, val)) != NULL)
673 {
674 wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
675 *tcp++ = wxT('$');
676 *tcp++ = wxT('{');
677 wxStrcpy (tcp, WXSTRINGCAST envname);
678 wxStrcat (tcp, wxT("}"));
679 wxStrcat (tcp, wxFileFunctionsBuffer);
680 }
681 #else
682 wxUnusedVar(envname);
683 #endif
684
685 // Handle User's home (ignore root homes!)
686 val = wxGetUserHome (user);
687 if (!val)
688 return dest;
689
690 const size_t len = wxStrlen(val);
691 if (len <= 2)
692 return dest;
693
694 if (wxStrncmp(dest, val, len) == 0)
695 {
696 wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
697 if (!user.empty())
698 wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
699 wxStrcat(wxFileFunctionsBuffer, dest + len);
700 wxStrcpy (dest, wxFileFunctionsBuffer);
701 }
702
703 return dest;
704 }
705
706 // Return just the filename, not the path (basename)
707 wxChar *wxFileNameFromPath (wxChar *path)
708 {
709 wxString p = path;
710 wxString n = wxFileNameFromPath(p);
711
712 return path + p.length() - n.length();
713 }
714
715 wxString wxFileNameFromPath (const wxString& path)
716 {
717 wxString name, ext;
718 wxFileName::SplitPath(path, NULL, &name, &ext);
719
720 wxString fullname = name;
721 if ( !ext.empty() )
722 {
723 fullname << wxFILE_SEP_EXT << ext;
724 }
725
726 return fullname;
727 }
728
729 // Return just the directory, or NULL if no directory
730 wxChar *
731 wxPathOnly (wxChar *path)
732 {
733 if (path && *path)
734 {
735 static wxChar buf[_MAXPATHLEN];
736
737 // Local copy
738 wxStrcpy (buf, path);
739
740 int l = wxStrlen(path);
741 int i = l - 1;
742
743 // Search backward for a backward or forward slash
744 while (i > -1)
745 {
746 #if defined(__WXMAC__) && !defined(__DARWIN__)
747 // Classic or Carbon CodeWarrior like
748 // Carbon with Apple DevTools is Unix like
749 if (path[i] == wxT(':') )
750 {
751 buf[i] = 0;
752 return buf;
753 }
754 #else
755 // Unix like or Windows
756 if (path[i] == wxT('/') || path[i] == wxT('\\'))
757 {
758 buf[i] = 0;
759 return buf;
760 }
761 #endif
762 #ifdef __VMS__
763 if (path[i] == wxT(']'))
764 {
765 buf[i+1] = 0;
766 return buf;
767 }
768 #endif
769 i --;
770 }
771
772 #if defined(__WXMSW__) || defined(__OS2__)
773 // Try Drive specifier
774 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
775 {
776 // A:junk --> A:. (since A:.\junk Not A:\junk)
777 buf[2] = wxT('.');
778 buf[3] = wxT('\0');
779 return buf;
780 }
781 #endif
782 }
783 return (wxChar *) NULL;
784 }
785
786 // Return just the directory, or NULL if no directory
787 wxString wxPathOnly (const wxString& path)
788 {
789 if (!path.empty())
790 {
791 wxChar buf[_MAXPATHLEN];
792
793 // Local copy
794 wxStrcpy (buf, WXSTRINGCAST path);
795
796 int l = path.Length();
797 int i = l - 1;
798
799 // Search backward for a backward or forward slash
800 while (i > -1)
801 {
802 #if defined(__WXMAC__) && !defined(__DARWIN__)
803 // Classic or Carbon CodeWarrior like
804 // Carbon with Apple DevTools is Unix like
805 if (path[i] == wxT(':') )
806 {
807 buf[i] = 0;
808 return wxString(buf);
809 }
810 #else
811 // Unix like or Windows
812 if (path[i] == wxT('/') || path[i] == wxT('\\'))
813 {
814 // Don't return an empty string
815 if (i == 0)
816 i ++;
817 buf[i] = 0;
818 return wxString(buf);
819 }
820 #endif
821 #ifdef __VMS__
822 if (path[i] == wxT(']'))
823 {
824 buf[i+1] = 0;
825 return wxString(buf);
826 }
827 #endif
828 i --;
829 }
830
831 #if defined(__WXMSW__) || defined(__OS2__)
832 // Try Drive specifier
833 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
834 {
835 // A:junk --> A:. (since A:.\junk Not A:\junk)
836 buf[2] = wxT('.');
837 buf[3] = wxT('\0');
838 return wxString(buf);
839 }
840 #endif
841 }
842 return wxEmptyString;
843 }
844
845 // Utility for converting delimiters in DOS filenames to UNIX style
846 // and back again - or we get nasty problems with delimiters.
847 // Also, convert to lower case, since case is significant in UNIX.
848
849 #if defined(__WXMAC__)
850
851 #if TARGET_API_MAC_OSX
852 #define kDefaultPathStyle kCFURLPOSIXPathStyle
853 #else
854 #define kDefaultPathStyle kCFURLHFSPathStyle
855 #endif
856
857 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
858 {
859 CFURLRef fullURLRef;
860 fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
861 if ( additionalPathComponent )
862 {
863 CFURLRef parentURLRef = fullURLRef ;
864 fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
865 additionalPathComponent,false);
866 CFRelease( parentURLRef ) ;
867 }
868 CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
869 CFRelease( fullURLRef ) ;
870 return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
871 }
872
873 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
874 {
875 OSStatus err = noErr ;
876 CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
877 if ( NULL != url )
878 {
879 if ( CFURLGetFSRef(url, fsRef) == false )
880 err = fnfErr ;
881 CFRelease( url ) ;
882 }
883 else
884 {
885 err = fnfErr ;
886 }
887 return err ;
888 }
889
890 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
891 {
892 CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
893 uniname->unicode,
894 uniname->length );
895 return wxMacCFStringHolder(cfname).AsString() ;
896 }
897
898 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
899 {
900 FSRef fsRef ;
901 if ( FSpMakeFSRef( spec , &fsRef) == noErr )
902 {
903 return wxMacFSRefToPath( &fsRef ) ;
904 }
905 return wxEmptyString ;
906 }
907
908 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
909 {
910 OSStatus err = noErr ;
911 FSRef fsRef ;
912 wxMacPathToFSRef( path , &fsRef ) ;
913 err = FSRefMakeFSSpec( &fsRef , spec ) ;
914 }
915
916 #endif // __WXMAC__
917
918 void
919 wxDos2UnixFilename (wxChar *s)
920 {
921 if (s)
922 while (*s)
923 {
924 if (*s == _T('\\'))
925 *s = _T('/');
926 #ifdef __WXMSW__
927 else
928 *s = (wxChar)wxTolower (*s); // Case INDEPENDENT
929 #endif
930 s++;
931 }
932 }
933
934 void
935 #if defined(__WXMSW__) || defined(__OS2__)
936 wxUnix2DosFilename (wxChar *s)
937 #else
938 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
939 #endif
940 {
941 // Yes, I really mean this to happen under DOS only! JACS
942 #if defined(__WXMSW__) || defined(__OS2__)
943 if (s)
944 while (*s)
945 {
946 if (*s == wxT('/'))
947 *s = wxT('\\');
948 s++;
949 }
950 #endif
951 }
952
953 // Concatenate two files to form third
954 bool
955 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
956 {
957 #if wxUSE_FILE
958
959 wxFile in1(file1), in2(file2);
960 wxTempFile out(file3);
961
962 if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
963 return false;
964
965 ssize_t ofs;
966 unsigned char buf[1024];
967
968 for( int i=0; i<2; i++)
969 {
970 wxFile *in = i==0 ? &in1 : &in2;
971 do{
972 if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
973 if ( ofs > 0 )
974 if ( !out.Write(buf,ofs) )
975 return false;
976 } while ( ofs == (ssize_t)WXSIZEOF(buf) );
977 }
978
979 return out.Commit();
980
981 #else
982
983 wxUnusedVar(file1);
984 wxUnusedVar(file2);
985 wxUnusedVar(file3);
986 return false;
987
988 #endif
989 }
990
991 // Copy files
992 bool
993 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
994 {
995 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
996 // CopyFile() copies file attributes and modification time too, so use it
997 // instead of our code if available
998 //
999 // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1000 if ( !::CopyFile(file1, file2, !overwrite) )
1001 {
1002 wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1003 file1.c_str(), file2.c_str());
1004
1005 return false;
1006 }
1007 #elif defined(__OS2__)
1008 if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1009 return false;
1010 #elif defined(__PALMOS__)
1011 // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1012 return false;
1013 #elif wxUSE_FILE // !Win32
1014
1015 wxStructStat fbuf;
1016 // get permissions of file1
1017 if ( wxStat( file1.c_str(), &fbuf) != 0 )
1018 {
1019 // the file probably doesn't exist or we haven't the rights to read
1020 // from it anyhow
1021 wxLogSysError(_("Impossible to get permissions for file '%s'"),
1022 file1.c_str());
1023 return false;
1024 }
1025
1026 // open file1 for reading
1027 wxFile fileIn(file1, wxFile::read);
1028 if ( !fileIn.IsOpened() )
1029 return false;
1030
1031 // remove file2, if it exists. This is needed for creating
1032 // file2 with the correct permissions in the next step
1033 if ( wxFileExists(file2) && (!overwrite || !wxRemoveFile(file2)))
1034 {
1035 wxLogSysError(_("Impossible to overwrite the file '%s'"),
1036 file2.c_str());
1037 return false;
1038 }
1039
1040 // reset the umask as we want to create the file with exactly the same
1041 // permissions as the original one
1042 wxCHANGE_UMASK(0);
1043
1044 // create file2 with the same permissions than file1 and open it for
1045 // writing
1046
1047 wxFile fileOut;
1048 if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1049 return false;
1050
1051 // copy contents of file1 to file2
1052 char buf[4096];
1053 size_t count;
1054 for ( ;; )
1055 {
1056 count = fileIn.Read(buf, WXSIZEOF(buf));
1057 if ( fileIn.Error() )
1058 return false;
1059
1060 // end of file?
1061 if ( !count )
1062 break;
1063
1064 if ( fileOut.Write(buf, count) < count )
1065 return false;
1066 }
1067
1068 // we can expect fileIn to be closed successfully, but we should ensure
1069 // that fileOut was closed as some write errors (disk full) might not be
1070 // detected before doing this
1071 if ( !fileIn.Close() || !fileOut.Close() )
1072 return false;
1073
1074 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1075 // no chmod in VA. Should be some permission API for HPFS386 partitions
1076 // however
1077 if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1078 {
1079 wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1080 file2.c_str());
1081 return false;
1082 }
1083 #endif // OS/2 || Mac
1084
1085 #else // !Win32 && ! wxUSE_FILE
1086
1087 // impossible to simulate with wxWidgets API
1088 wxUnusedVar(file1);
1089 wxUnusedVar(file2);
1090 wxUnusedVar(overwrite);
1091 return false;
1092
1093 #endif // __WXMSW__ && __WIN32__
1094
1095 return true;
1096 }
1097
1098 bool
1099 wxRenameFile (const wxString& file1, const wxString& file2)
1100 {
1101 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1102 // Normal system call
1103 if ( wxRename (file1, file2) == 0 )
1104 return true;
1105 #endif
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(__DMC__) \
1122 || defined(__GNUWIN32__) \
1123 || (defined(__MWERKS__) && defined(__MSL__))
1124 int res = wxRemove(file);
1125 #elif defined(__WXMAC__)
1126 int res = unlink(wxFNCONV(file));
1127 #elif defined(__WXPALMOS__)
1128 int res = 1;
1129 // TODO with VFSFileDelete()
1130 #else
1131 int res = unlink(OS_FILENAME(file));
1132 #endif
1133
1134 return res == 0;
1135 }
1136
1137 bool wxMkdir(const wxString& dir, int perm)
1138 {
1139 #if defined(__WXPALMOS__)
1140 return false;
1141 #elif defined(__WXMAC__) && !defined(__UNIX__)
1142 return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1143 #else // !Mac
1144 const wxChar *dirname = dir.c_str();
1145
1146 // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1147 // for the GNU compiler
1148 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1149 #if defined(MSVCRT)
1150 wxUnusedVar(perm);
1151 if ( mkdir(wxFNCONV(dirname)) != 0 )
1152 #else
1153 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1154 #endif
1155 #elif defined(__OS2__)
1156 if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1157 #elif defined(__DOS__)
1158 #if defined(__WATCOMC__)
1159 (void)perm;
1160 if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1161 #elif defined(__DJGPP__)
1162 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1163 #else
1164 #error "Unsupported DOS compiler!"
1165 #endif
1166 #else // !MSW, !DOS and !OS/2 VAC++
1167 wxUnusedVar(perm);
1168 #ifdef __WXWINCE__
1169 if ( !CreateDirectory(dirname, NULL) )
1170 #else
1171 if ( wxMkDir(dir.fn_str()) != 0 )
1172 #endif
1173 #endif // !MSW/MSW
1174 {
1175 wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1176
1177 return false;
1178 }
1179
1180 return true;
1181 #endif // Mac/!Mac
1182 }
1183
1184 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1185 {
1186 #if defined(__VMS__)
1187 return false; //to be changed since rmdir exists in VMS7.x
1188 #elif defined(__OS2__)
1189 return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1190 #elif defined(__WXWINCE__)
1191 return (CreateDirectory(dir, NULL) != 0);
1192 #elif defined(__WXPALMOS__)
1193 // TODO with VFSFileRename()
1194 return false;
1195 #else
1196 return (wxRmDir(OS_FILENAME(dir)) == 0);
1197 #endif
1198 }
1199
1200 // does the path exists? (may have or not '/' or '\\' at the end)
1201 bool wxDirExists(const wxChar *pszPathName)
1202 {
1203 wxString strPath(pszPathName);
1204
1205 #if defined(__WINDOWS__) || defined(__OS2__)
1206 // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1207 // so remove all trailing backslashes from the path - but don't do this for
1208 // the pathes "d:\" (which are different from "d:") nor for just "\"
1209 while ( wxEndsWithPathSeparator(strPath) )
1210 {
1211 size_t len = strPath.length();
1212 if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1213 break;
1214
1215 strPath.Truncate(len - 1);
1216 }
1217 #endif // __WINDOWS__
1218
1219 #ifdef __OS2__
1220 // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1221 if (strPath.length() == 2 && strPath[1u] == _T(':'))
1222 strPath << _T('.');
1223 #endif
1224
1225 #if defined(__WXPALMOS__)
1226 return false;
1227 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1228 // stat() can't cope with network paths
1229 DWORD ret = ::GetFileAttributes(strPath);
1230
1231 return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1232 #elif defined(__OS2__)
1233 return (::DosSetCurrentDir((PSZ)(WXSTRINGCAST strPath)));
1234 #else // !__WIN32__
1235
1236 wxStructStat st;
1237 #ifndef __VISAGECPP__
1238 return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1239 #else
1240 // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1241 return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1242 #endif
1243
1244 #endif // __WIN32__/!__WIN32__
1245 }
1246
1247 // Get a temporary filename, opening and closing the file.
1248 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1249 {
1250 #if wxUSE_FILE
1251 wxString filename = wxFileName::CreateTempFileName(prefix);
1252 if ( filename.empty() )
1253 return NULL;
1254
1255 if ( buf )
1256 wxStrcpy(buf, filename);
1257 else
1258 buf = MYcopystring(filename);
1259
1260 return buf;
1261 #else
1262 wxUnusedVar(prefix);
1263 wxUnusedVar(buf);
1264 // wxFileName::CreateTempFileName needs wxFile class enabled
1265 return NULL;
1266 #endif
1267 }
1268
1269 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1270 {
1271 buf = wxGetTempFileName(prefix);
1272
1273 return !buf.empty();
1274 }
1275
1276 // Get first file name matching given wild card.
1277
1278 static wxDir *gs_dir = NULL;
1279 static wxString gs_dirPath;
1280
1281 wxString wxFindFirstFile(const wxChar *spec, int flags)
1282 {
1283 wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1284 if ( gs_dirPath.empty() )
1285 gs_dirPath = wxT(".");
1286 if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1287 gs_dirPath << wxFILE_SEP_PATH;
1288
1289 if (gs_dir)
1290 delete gs_dir;
1291 gs_dir = new wxDir(gs_dirPath);
1292
1293 if ( !gs_dir->IsOpened() )
1294 {
1295 wxLogSysError(_("Can not enumerate files '%s'"), spec);
1296 return wxEmptyString;
1297 }
1298
1299 int dirFlags;
1300 switch (flags)
1301 {
1302 case wxDIR: dirFlags = wxDIR_DIRS; break;
1303 case wxFILE: dirFlags = wxDIR_FILES; break;
1304 default: dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1305 }
1306
1307 wxString result;
1308 gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1309 if ( result.empty() )
1310 {
1311 wxDELETE(gs_dir);
1312 return result;
1313 }
1314
1315 return gs_dirPath + result;
1316 }
1317
1318 wxString wxFindNextFile()
1319 {
1320 wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1321
1322 wxString result;
1323 gs_dir->GetNext(&result);
1324
1325 if ( result.empty() )
1326 {
1327 wxDELETE(gs_dir);
1328 return result;
1329 }
1330
1331 return gs_dirPath + result;
1332 }
1333
1334
1335 // Get current working directory.
1336 // If buf is NULL, allocates space using new, else
1337 // copies into buf.
1338 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1339 {
1340 #if defined(__WXPALMOS__)
1341 // TODO ?
1342 return NULL;
1343 #elif defined(__WXWINCE__)
1344 // TODO
1345 wxUnusedVar(buf);
1346 wxUnusedVar(sz);
1347 return NULL;
1348 #else
1349 if ( !buf )
1350 {
1351 buf = new wxChar[sz + 1];
1352 }
1353
1354 bool ok wxDUMMY_INITIALIZE(false);
1355
1356 // for the compilers which have Unicode version of _getcwd(), call it
1357 // directly, for the others call the ANSI version and do the translation
1358 #if !wxUSE_UNICODE
1359 #define cbuf buf
1360 #else // wxUSE_UNICODE
1361 bool needsANSI = true;
1362
1363 #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1364 // This is not legal code as the compiler
1365 // is allowed destroy the wxCharBuffer.
1366 // wxCharBuffer c_buffer(sz);
1367 // char *cbuf = (char*)(const char*)c_buffer;
1368 char cbuf[_MAXPATHLEN];
1369 #endif
1370
1371 #ifdef HAVE_WGETCWD
1372 #if wxUSE_UNICODE_MSLU
1373 if ( wxGetOsVersion() != wxWIN95 )
1374 #else
1375 char *cbuf = NULL; // never really used because needsANSI will always be false
1376 #endif
1377 {
1378 ok = _wgetcwd(buf, sz) != NULL;
1379 needsANSI = false;
1380 }
1381 #endif
1382
1383 if ( needsANSI )
1384 #endif // wxUSE_UNICODE
1385 {
1386 #if defined(_MSC_VER) || defined(__MINGW32__)
1387 ok = _getcwd(cbuf, sz) != NULL;
1388 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1389 char lbuf[1024] ;
1390 if ( getcwd( lbuf , sizeof( lbuf ) ) )
1391 {
1392 wxString res( lbuf , *wxConvCurrent ) ;
1393 wxStrcpy( buf , res ) ;
1394 ok = true;
1395 }
1396 else
1397 ok = false ;
1398 #elif defined(__OS2__)
1399 APIRET rc;
1400 ULONG ulDriveNum = 0;
1401 ULONG ulDriveMap = 0;
1402 rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1403 ok = rc == 0;
1404 if (ok)
1405 {
1406 sz -= 3;
1407 rc = ::DosQueryCurrentDir( 0 // current drive
1408 ,cbuf + 3
1409 ,(PULONG)&sz
1410 );
1411 cbuf[0] = 'A' + (ulDriveNum - 1);
1412 cbuf[1] = ':';
1413 cbuf[2] = '\\';
1414 ok = rc == 0;
1415 }
1416 #else // !Win32/VC++ !Mac !OS2
1417 ok = getcwd(cbuf, sz) != NULL;
1418 #endif // platform
1419
1420 #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1421 // finally convert the result to Unicode if needed
1422 wxConvFile.MB2WC(buf, cbuf, sz);
1423 #endif // wxUSE_UNICODE
1424 }
1425
1426 if ( !ok )
1427 {
1428 wxLogSysError(_("Failed to get the working directory"));
1429
1430 // VZ: the old code used to return "." on error which didn't make any
1431 // sense at all to me - empty string is a better error indicator
1432 // (NULL might be even better but I'm afraid this could lead to
1433 // problems with the old code assuming the return is never NULL)
1434 buf[0] = _T('\0');
1435 }
1436 else // ok, but we might need to massage the path into the right format
1437 {
1438 #ifdef __DJGPP__
1439 // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1440 // with / deliminers. We don't like that.
1441 for (wxChar *ch = buf; *ch; ch++)
1442 {
1443 if (*ch == wxT('/'))
1444 *ch = wxT('\\');
1445 }
1446 #endif // __DJGPP__
1447
1448 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1449 // he needs Unix as opposed to Win32 pathnames
1450 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1451 // another example of DOS/Unix mix (Cygwin)
1452 wxString pathUnix = buf;
1453 cygwin_conv_to_full_win32_path(pathUnix, buf);
1454 #endif // __CYGWIN__
1455 }
1456
1457 return buf;
1458
1459 #if !wxUSE_UNICODE
1460 #undef cbuf
1461 #endif
1462
1463 #endif
1464 // __WXWINCE__
1465 }
1466
1467 wxString wxGetCwd()
1468 {
1469 wxChar *buffer = new wxChar[_MAXPATHLEN];
1470 wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1471 wxString str( buffer );
1472 delete [] buffer;
1473
1474 return str;
1475 }
1476
1477 bool wxSetWorkingDirectory(const wxString& d)
1478 {
1479 #if defined(__OS2__)
1480 return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1481 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1482 return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1483 #elif defined(__WINDOWS__)
1484
1485 #ifdef __WIN32__
1486 #ifdef __WXWINCE__
1487 // No equivalent in WinCE
1488 wxUnusedVar(d);
1489 return false;
1490 #else
1491 return (bool)(SetCurrentDirectory(d) != 0);
1492 #endif
1493 #else
1494 // Must change drive, too.
1495 bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1496 if (isDriveSpec)
1497 {
1498 wxChar firstChar = d[0];
1499
1500 // To upper case
1501 if (firstChar > 90)
1502 firstChar = firstChar - 32;
1503
1504 // To a drive number
1505 unsigned int driveNo = firstChar - 64;
1506 if (driveNo > 0)
1507 {
1508 unsigned int noDrives;
1509 _dos_setdrive(driveNo, &noDrives);
1510 }
1511 }
1512 bool success = (chdir(WXSTRINGCAST d) == 0);
1513
1514 return success;
1515 #endif
1516
1517 #endif
1518 }
1519
1520 // Get the OS directory if appropriate (such as the Windows directory).
1521 // On non-Windows platform, probably just return the empty string.
1522 wxString wxGetOSDirectory()
1523 {
1524 #ifdef __WXWINCE__
1525 return wxString(wxT("\\Windows"));
1526 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1527 wxChar buf[256];
1528 GetWindowsDirectory(buf, 256);
1529 return wxString(buf);
1530 #elif defined(__WXMAC__)
1531 return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1532 #else
1533 return wxEmptyString;
1534 #endif
1535 }
1536
1537 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1538 {
1539 size_t len = wxStrlen(pszFileName);
1540
1541 return len && wxIsPathSeparator(pszFileName[len - 1]);
1542 }
1543
1544 // find a file in a list of directories, returns false if not found
1545 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1546 {
1547 // we assume that it's not empty
1548 wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1549 _T("empty file name in wxFindFileInPath"));
1550
1551 // skip path separator in the beginning of the file name if present
1552 if ( wxIsPathSeparator(*pszFile) )
1553 pszFile++;
1554
1555 // copy the path (strtok will modify it)
1556 wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1557 wxStrcpy(szPath, pszPath);
1558
1559 wxString strFile;
1560 wxChar *pc, *save_ptr;
1561 for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1562 pc != NULL;
1563 pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1564 {
1565 // search for the file in this directory
1566 strFile = pc;
1567 if ( !wxEndsWithPathSeparator(pc) )
1568 strFile += wxFILE_SEP_PATH;
1569 strFile += pszFile;
1570
1571 if ( wxFileExists(strFile) ) {
1572 *pStr = strFile;
1573 break;
1574 }
1575 }
1576
1577 // suppress warning about unused variable save_ptr when wxStrtok() is a
1578 // macro which throws away its third argument
1579 save_ptr = pc;
1580
1581 delete [] szPath;
1582
1583 return pc != NULL; // if true => we breaked from the loop
1584 }
1585
1586 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1587 wxString *pstrPath,
1588 wxString *pstrName,
1589 wxString *pstrExt)
1590 {
1591 // it can be empty, but it shouldn't be NULL
1592 wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1593
1594 wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1595 }
1596
1597 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1598 {
1599 #if defined(__WXPALMOS__)
1600 return 0;
1601 #elif defined(__WXWINCE__)
1602 FILETIME ftLastWrite;
1603 AutoHANDLE hFile(::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
1604 NULL, 0, FILE_ATTRIBUTE_NORMAL, 0));
1605
1606 if ( !hFile.IsOk() )
1607 return 0;
1608
1609 if ( !::GetFileTime(hFile, NULL, NULL, &ftLastWrite) )
1610 return 0;
1611
1612 // sure we want to translate to local time here?
1613 FILETIME ftLocal;
1614 if ( !::FileTimeToLocalFileTime(&ftLastWrite, &ftLocal) )
1615 {
1616 wxLogLastError(_T("FileTimeToLocalFileTime"));
1617 }
1618
1619 // FILETIME is a counted in 100-ns since 1601-01-01, convert it to
1620 // number of seconds since 1970-01-01
1621 ULARGE_INTEGER uli;
1622 uli.LowPart = ftLocal.dwLowDateTime;
1623 uli.HighPart = ftLocal.dwHighDateTime;
1624
1625 ULONGLONG ull = uli.QuadPart;
1626 ull /= wxULL(10000000); // number of 100ns intervals in 1s
1627 ull -= wxULL(11644473600); // 1970-01-01 - 1601-01-01 in seconds
1628
1629 return wx_static_cast(time_t, ull);
1630 #else
1631 wxStructStat buf;
1632 if ( wxStat( filename, &buf) != 0 )
1633 return 0;
1634
1635 return buf.st_mtime;
1636 #endif
1637 }
1638
1639
1640 // Parses the filterStr, returning the number of filters.
1641 // Returns 0 if none or if there's a problem.
1642 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1643
1644 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr, wxArrayString& descriptions, wxArrayString& filters)
1645 {
1646 descriptions.Clear();
1647 filters.Clear();
1648
1649 wxString str(filterStr);
1650
1651 wxString description, filter;
1652 int pos = 0;
1653 while( pos != wxNOT_FOUND )
1654 {
1655 pos = str.Find(wxT('|'));
1656 if ( pos == wxNOT_FOUND )
1657 {
1658 // if there are no '|'s at all in the string just take the entire
1659 // string as filter and make description empty for later autocompletion
1660 if ( filters.IsEmpty() )
1661 {
1662 descriptions.Add(wxEmptyString);
1663 filters.Add(filterStr);
1664 }
1665 else
1666 {
1667 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1668 }
1669
1670 break;
1671 }
1672
1673 description = str.Left(pos);
1674 str = str.Mid(pos + 1);
1675 pos = str.Find(wxT('|'));
1676 if ( pos == wxNOT_FOUND )
1677 {
1678 filter = str;
1679 }
1680 else
1681 {
1682 filter = str.Left(pos);
1683 str = str.Mid(pos + 1);
1684 }
1685
1686 descriptions.Add(description);
1687 filters.Add(filter);
1688 }
1689
1690 #if defined(__WXMOTIF__)
1691 // split it so there is one wildcard per entry
1692 for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1693 {
1694 pos = filters[i].Find(wxT(';'));
1695 if (pos != wxNOT_FOUND)
1696 {
1697 // first split only filters
1698 descriptions.Insert(descriptions[i],i+1);
1699 filters.Insert(filters[i].Mid(pos+1),i+1);
1700 filters[i]=filters[i].Left(pos);
1701
1702 // autoreplace new filter in description with pattern:
1703 // C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1704 // cause split into:
1705 // C/C++ Files(*.cpp)|*.cpp
1706 // C/C++ Files(*.c;*.h)|*.c;*.h
1707 // and next iteration cause another split into:
1708 // C/C++ Files(*.cpp)|*.cpp
1709 // C/C++ Files(*.c)|*.c
1710 // C/C++ Files(*.h)|*.h
1711 for ( size_t k=i;k<i+2;k++ )
1712 {
1713 pos = descriptions[k].Find(filters[k]);
1714 if (pos != wxNOT_FOUND)
1715 {
1716 wxString before = descriptions[k].Left(pos);
1717 wxString after = descriptions[k].Mid(pos+filters[k].Len());
1718 pos = before.Find(_T('('),true);
1719 if (pos>before.Find(_T(')'),true))
1720 {
1721 before = before.Left(pos+1);
1722 before << filters[k];
1723 pos = after.Find(_T(')'));
1724 int pos1 = after.Find(_T('('));
1725 if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1726 {
1727 before << after.Mid(pos);
1728 descriptions[k] = before;
1729 }
1730 }
1731 }
1732 }
1733 }
1734 }
1735 #endif
1736
1737 // autocompletion
1738 for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1739 {
1740 if ( descriptions[j].empty() && !filters[j].empty() )
1741 {
1742 descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1743 }
1744 }
1745
1746 return filters.GetCount();
1747 }
1748
1749
1750 //------------------------------------------------------------------------
1751 // wild character routines
1752 //------------------------------------------------------------------------
1753
1754 bool wxIsWild( const wxString& pattern )
1755 {
1756 wxString tmp = pattern;
1757 wxChar *pat = WXSTRINGCAST(tmp);
1758 while (*pat)
1759 {
1760 switch (*pat++)
1761 {
1762 case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1763 return true;
1764 case wxT('\\'):
1765 if (!*pat++)
1766 return false;
1767 }
1768 }
1769 return false;
1770 }
1771
1772 /*
1773 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1774 *
1775 * The match procedure is public domain code (from ircII's reg.c)
1776 */
1777
1778 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1779 {
1780 if (text.empty())
1781 {
1782 /* Match if both are empty. */
1783 return pat.empty();
1784 }
1785
1786 const wxChar *m = pat.c_str(),
1787 *n = text.c_str(),
1788 *ma = NULL,
1789 *na = NULL,
1790 *mp = NULL,
1791 *np = NULL;
1792 int just = 0,
1793 pcount = 0,
1794 acount = 0,
1795 count = 0;
1796
1797 if (dot_special && (*n == wxT('.')))
1798 {
1799 /* Never match so that hidden Unix files
1800 * are never found. */
1801 return false;
1802 }
1803
1804 for (;;)
1805 {
1806 if (*m == wxT('*'))
1807 {
1808 ma = ++m;
1809 na = n;
1810 just = 1;
1811 mp = NULL;
1812 acount = count;
1813 }
1814 else if (*m == wxT('?'))
1815 {
1816 m++;
1817 if (!*n++)
1818 return false;
1819 }
1820 else
1821 {
1822 if (*m == wxT('\\'))
1823 {
1824 m++;
1825 /* Quoting "nothing" is a bad thing */
1826 if (!*m)
1827 return false;
1828 }
1829 if (!*m)
1830 {
1831 /*
1832 * If we are out of both strings or we just
1833 * saw a wildcard, then we can say we have a
1834 * match
1835 */
1836 if (!*n)
1837 return true;
1838 if (just)
1839 return true;
1840 just = 0;
1841 goto not_matched;
1842 }
1843 /*
1844 * We could check for *n == NULL at this point, but
1845 * since it's more common to have a character there,
1846 * check to see if they match first (m and n) and
1847 * then if they don't match, THEN we can check for
1848 * the NULL of n
1849 */
1850 just = 0;
1851 if (*m == *n)
1852 {
1853 m++;
1854 if (*n == wxT(' '))
1855 mp = NULL;
1856 count++;
1857 n++;
1858 }
1859 else
1860 {
1861
1862 not_matched:
1863
1864 /*
1865 * If there are no more characters in the
1866 * string, but we still need to find another
1867 * character (*m != NULL), then it will be
1868 * impossible to match it
1869 */
1870 if (!*n)
1871 return false;
1872 if (mp)
1873 {
1874 m = mp;
1875 if (*np == wxT(' '))
1876 {
1877 mp = NULL;
1878 goto check_percent;
1879 }
1880 n = ++np;
1881 count = pcount;
1882 }
1883 else
1884 check_percent:
1885
1886 if (ma)
1887 {
1888 m = ma;
1889 n = ++na;
1890 count = acount;
1891 }
1892 else
1893 return false;
1894 }
1895 }
1896 }
1897 }
1898
1899 // Return the type of an open file
1900 //
1901 // Some file types on some platforms seem seekable but in fact are not.
1902 // The main use of this function is to allow such cases to be detected
1903 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1904 //
1905 // This is important for the archive streams, which benefit greatly from
1906 // being able to seek on a stream, but which will produce corrupt archives
1907 // if they unknowingly seek on a non-seekable stream.
1908 //
1909 // wxFILE_KIND_DISK is a good catch all return value, since other values
1910 // disable features of the archive streams. Some other value must be returned
1911 // for a file type that appears seekable but isn't.
1912 //
1913 // Known examples:
1914 // * Pipes on Windows
1915 // * Files on VMS with a record format other than StreamLF
1916 //
1917 wxFileKind wxGetFileKind(int fd)
1918 {
1919 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1920 switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1921 {
1922 case FILE_TYPE_CHAR:
1923 return wxFILE_KIND_TERMINAL;
1924 case FILE_TYPE_DISK:
1925 return wxFILE_KIND_DISK;
1926 case FILE_TYPE_PIPE:
1927 return wxFILE_KIND_PIPE;
1928 }
1929
1930 return wxFILE_KIND_UNKNOWN;
1931
1932 #elif defined(__UNIX__)
1933 if (isatty(fd))
1934 return wxFILE_KIND_TERMINAL;
1935
1936 struct stat st;
1937 fstat(fd, &st);
1938
1939 if (S_ISFIFO(st.st_mode))
1940 return wxFILE_KIND_PIPE;
1941 if (!S_ISREG(st.st_mode))
1942 return wxFILE_KIND_UNKNOWN;
1943
1944 #if defined(__VMS__)
1945 if (st.st_fab_rfm != FAB$C_STMLF)
1946 return wxFILE_KIND_UNKNOWN;
1947 #endif
1948
1949 return wxFILE_KIND_DISK;
1950
1951 #else
1952 #define wxFILEKIND_STUB
1953 (void)fd;
1954 return wxFILE_KIND_DISK;
1955 #endif
1956 }
1957
1958 wxFileKind wxGetFileKind(FILE *fp)
1959 {
1960 // Note: The watcom rtl dll doesn't have fileno (the static lib does).
1961 // Should be fixed in version 1.4.
1962 #if defined(wxFILEKIND_STUB) || \
1963 (defined(__WATCOMC__) && __WATCOMC__ <= 1230 && defined(__SW_BR))
1964 (void)fp;
1965 return wxFILE_KIND_DISK;
1966 #else
1967 return wxGetFileKind(fileno(fp));
1968 #endif
1969 }
1970
1971 #ifdef __VISUALC__
1972 #pragma warning(default:4706) // assignment within conditional expression
1973 #endif // VC++
wxWidgets (Impactor)