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Helpers in disabling warnings for unused params.
[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& WXUNUSED_IN_WINCE(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 #endif // !__WXWINCE__
213 }
214
215 // Given a full filename (with path), ensure that that file can
216 // be accessed again USING FILENAME ONLY by adding the path
217 // to the list if not already there.
218 void wxPathList::EnsureFileAccessible (const wxString& path)
219 {
220 wxString path_only(wxPathOnly(path));
221 if ( !path_only.empty() )
222 {
223 if ( !Member(path_only) )
224 Add(path_only);
225 }
226 }
227
228 bool wxPathList::Member (const wxString& path)
229 {
230 for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
231 {
232 wxString path2( node->GetData() );
233 if (
234 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined(__WXMAC__)
235 // Case INDEPENDENT
236 path.CompareTo (path2, wxString::ignoreCase) == 0
237 #else
238 // Case sensitive File System
239 path.CompareTo (path2) == 0
240 #endif
241 )
242 return true;
243 }
244 return false;
245 }
246
247 wxString wxPathList::FindValidPath (const wxString& file)
248 {
249 if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
250 return wxString(wxFileFunctionsBuffer);
251
252 wxChar buf[_MAXPATHLEN];
253 wxStrcpy(buf, wxFileFunctionsBuffer);
254
255 wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
256
257 for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
258 {
259 const wxChar *path = node->GetData();
260 wxStrcpy (wxFileFunctionsBuffer, path);
261 wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
262 if (ch != wxT('\\') && ch != wxT('/'))
263 wxStrcat (wxFileFunctionsBuffer, wxT("/"));
264 wxStrcat (wxFileFunctionsBuffer, filename);
265 #ifdef __WINDOWS__
266 wxUnix2DosFilename (wxFileFunctionsBuffer);
267 #endif
268 if (wxFileExists (wxFileFunctionsBuffer))
269 {
270 return wxString(wxFileFunctionsBuffer); // Found!
271 }
272 } // for()
273
274 return wxEmptyString; // Not found
275 }
276
277 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
278 {
279 wxString f = FindValidPath(file);
280 if ( f.empty() || wxIsAbsolutePath(f) )
281 return f;
282
283 wxString buf;
284 wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
285
286 if ( !wxEndsWithPathSeparator(buf) )
287 {
288 buf += wxFILE_SEP_PATH;
289 }
290 buf += f;
291
292 return buf;
293 }
294
295 bool
296 wxFileExists (const wxString& filename)
297 {
298 #if defined(__WXPALMOS__)
299 return false;
300 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
301 // we must use GetFileAttributes() instead of the ANSI C functions because
302 // it can cope with network (UNC) paths unlike them
303 DWORD ret = ::GetFileAttributes(filename);
304
305 return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
306 #else // !__WIN32__
307 wxStructStat st;
308 #ifndef wxNEED_WX_UNISTD_H
309 return wxStat( filename.fn_str() , &st) == 0 && (st.st_mode & S_IFREG);
310 #else
311 return wxStat( filename , &st) == 0 && (st.st_mode & S_IFREG);
312 #endif
313 #endif // __WIN32__/!__WIN32__
314 }
315
316 bool
317 wxIsAbsolutePath (const wxString& filename)
318 {
319 if (!filename.empty())
320 {
321 #if defined(__WXMAC__) && !defined(__DARWIN__)
322 // Classic or Carbon CodeWarrior like
323 // Carbon with Apple DevTools is Unix like
324
325 // This seems wrong to me, but there is no fix. since
326 // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
327 // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
328 if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
329 return true ;
330 #else
331 // Unix like or Windows
332 if (filename[0] == wxT('/'))
333 return true;
334 #endif
335 #ifdef __VMS__
336 if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
337 return true;
338 #endif
339 #if defined(__WINDOWS__) || defined(__OS2__)
340 // MSDOS like
341 if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
342 return true;
343 #endif
344 }
345 return false ;
346 }
347
348 /*
349 * Strip off any extension (dot something) from end of file,
350 * IF one exists. Inserts zero into buffer.
351 *
352 */
353
354 void wxStripExtension(wxChar *buffer)
355 {
356 int len = wxStrlen(buffer);
357 int i = len-1;
358 while (i > 0)
359 {
360 if (buffer[i] == wxT('.'))
361 {
362 buffer[i] = 0;
363 break;
364 }
365 i --;
366 }
367 }
368
369 void wxStripExtension(wxString& buffer)
370 {
371 //RN: Be careful about the handling the case where
372 //buffer.Length() == 0
373 for(size_t i = buffer.Length() - 1; i != wxString::npos; --i)
374 {
375 if (buffer.GetChar(i) == wxT('.'))
376 {
377 buffer = buffer.Left(i);
378 break;
379 }
380 }
381 }
382
383 // Destructive removal of /./ and /../ stuff
384 wxChar *wxRealPath (wxChar *path)
385 {
386 #ifdef __WXMSW__
387 static const wxChar SEP = wxT('\\');
388 wxUnix2DosFilename(path);
389 #else
390 static const wxChar SEP = wxT('/');
391 #endif
392 if (path[0] && path[1]) {
393 /* MATTHEW: special case "/./x" */
394 wxChar *p;
395 if (path[2] == SEP && path[1] == wxT('.'))
396 p = &path[0];
397 else
398 p = &path[2];
399 for (; *p; p++)
400 {
401 if (*p == SEP)
402 {
403 if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
404 {
405 wxChar *q;
406 for (q = p - 1; q >= path && *q != SEP; q--)
407 {
408 // Empty
409 }
410
411 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
412 && (q - 1 <= path || q[-1] != SEP))
413 {
414 wxStrcpy (q, p + 3);
415 if (path[0] == wxT('\0'))
416 {
417 path[0] = SEP;
418 path[1] = wxT('\0');
419 }
420 #if defined(__WXMSW__) || defined(__OS2__)
421 /* Check that path[2] is NULL! */
422 else if (path[1] == wxT(':') && !path[2])
423 {
424 path[2] = SEP;
425 path[3] = wxT('\0');
426 }
427 #endif
428 p = q - 1;
429 }
430 }
431 else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
432 wxStrcpy (p, p + 2);
433 }
434 }
435 }
436 return path;
437 }
438
439 // Must be destroyed
440 wxChar *wxCopyAbsolutePath(const wxString& filename)
441 {
442 if (filename.empty())
443 return (wxChar *) NULL;
444
445 if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
446 wxChar buf[_MAXPATHLEN];
447 buf[0] = wxT('\0');
448 wxGetWorkingDirectory(buf, WXSIZEOF(buf));
449 wxChar ch = buf[wxStrlen(buf) - 1];
450 #ifdef __WXMSW__
451 if (ch != wxT('\\') && ch != wxT('/'))
452 wxStrcat(buf, wxT("\\"));
453 #else
454 if (ch != wxT('/'))
455 wxStrcat(buf, wxT("/"));
456 #endif
457 wxStrcat(buf, wxFileFunctionsBuffer);
458 return MYcopystring( wxRealPath(buf) );
459 }
460 return MYcopystring( wxFileFunctionsBuffer );
461 }
462
463 /*-
464 Handles:
465 ~/ => home dir
466 ~user/ => user's home dir
467 If the environment variable a = "foo" and b = "bar" then:
468 Unix:
469 $a => foo
470 $a$b => foobar
471 $a.c => foo.c
472 xxx$a => xxxfoo
473 ${a}! => foo!
474 $(b)! => bar!
475 \$a => \$a
476 MSDOS:
477 $a ==> $a
478 $(a) ==> foo
479 $(a)$b ==> foo$b
480 $(a)$(b)==> foobar
481 test.$$ ==> test.$$
482 */
483
484 /* input name in name, pathname output to buf. */
485
486 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
487 {
488 register wxChar *d, *s, *nm;
489 wxChar lnm[_MAXPATHLEN];
490 int q;
491
492 // Some compilers don't like this line.
493 // const wxChar trimchars[] = wxT("\n \t");
494
495 wxChar trimchars[4];
496 trimchars[0] = wxT('\n');
497 trimchars[1] = wxT(' ');
498 trimchars[2] = wxT('\t');
499 trimchars[3] = 0;
500
501 #ifdef __WXMSW__
502 const wxChar SEP = wxT('\\');
503 #else
504 const wxChar SEP = wxT('/');
505 #endif
506 buf[0] = wxT('\0');
507 if (name == NULL || *name == wxT('\0'))
508 return buf;
509 nm = MYcopystring(name); // Make a scratch copy
510 wxChar *nm_tmp = nm;
511
512 /* Skip leading whitespace and cr */
513 while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
514 nm++;
515 /* And strip off trailing whitespace and cr */
516 s = nm + (q = wxStrlen(nm)) - 1;
517 while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
518 *s = wxT('\0');
519
520 s = nm;
521 d = lnm;
522 #ifdef __WXMSW__
523 q = FALSE;
524 #else
525 q = nm[0] == wxT('\\') && nm[1] == wxT('~');
526 #endif
527
528 /* Expand inline environment variables */
529 #ifdef __VISAGECPP__
530 while (*d)
531 {
532 *d++ = *s;
533 if(*s == wxT('\\'))
534 {
535 *(d - 1) = *++s;
536 if (*d)
537 {
538 s++;
539 continue;
540 }
541 else
542 break;
543 }
544 else
545 #else
546 while ((*d++ = *s) != 0) {
547 # ifndef __WXMSW__
548 if (*s == wxT('\\')) {
549 if ((*(d - 1) = *++s)) {
550 s++;
551 continue;
552 } else
553 break;
554 } else
555 # endif
556 #endif
557 // No env variables on WinCE
558 #ifndef __WXWINCE__
559 #ifdef __WXMSW__
560 if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
561 #else
562 if (*s++ == wxT('$'))
563 #endif
564 {
565 register wxChar *start = d;
566 register int braces = (*s == wxT('{') || *s == wxT('('));
567 register wxChar *value;
568 while ((*d++ = *s) != 0)
569 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
570 break;
571 else
572 s++;
573 *--d = 0;
574 value = wxGetenv(braces ? start + 1 : start);
575 if (value) {
576 for ((d = start - 1); (*d++ = *value++) != 0;)
577 {
578 // Empty
579 }
580
581 d--;
582 if (braces && *s)
583 s++;
584 }
585 }
586 #endif
587 // __WXWINCE__
588 }
589
590 /* Expand ~ and ~user */
591 nm = lnm;
592 if (nm[0] == wxT('~') && !q)
593 {
594 /* prefix ~ */
595 if (nm[1] == SEP || nm[1] == 0)
596 { /* ~/filename */
597 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
598 if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
599 if (*++nm)
600 nm++;
601 }
602 } else
603 { /* ~user/filename */
604 register wxChar *nnm;
605 register wxChar *home;
606 for (s = nm; *s && *s != SEP; s++)
607 {
608 // Empty
609 }
610 int was_sep; /* MATTHEW: Was there a separator, or NULL? */
611 was_sep = (*s == SEP);
612 nnm = *s ? s + 1 : s;
613 *s = 0;
614 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
615 if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
616 if (was_sep) /* replace only if it was there: */
617 *s = SEP;
618 s = NULL;
619 } else {
620 nm = nnm;
621 s = home;
622 }
623 }
624 }
625
626 d = buf;
627 if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
628 /* Copy home dir */
629 while (wxT('\0') != (*d++ = *s++))
630 /* loop */;
631 // Handle root home
632 if (d - 1 > buf && *(d - 2) != SEP)
633 *(d - 1) = SEP;
634 }
635 s = nm;
636 while ((*d++ = *s++) != 0)
637 {
638 // Empty
639 }
640 delete[] nm_tmp; // clean up alloc
641 /* Now clean up the buffer */
642 return wxRealPath(buf);
643 }
644
645 /* Contract Paths to be build upon an environment variable
646 component:
647
648 example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
649
650 The call wxExpandPath can convert these back!
651 */
652 wxChar *
653 wxContractPath (const wxString& filename,
654 const wxString& WXUNUSED_IN_WINCE(envname),
655 const wxString& user)
656 {
657 static wxChar dest[_MAXPATHLEN];
658
659 if (filename.empty())
660 return (wxChar *) NULL;
661
662 wxStrcpy (dest, WXSTRINGCAST filename);
663 #ifdef __WXMSW__
664 wxUnix2DosFilename(dest);
665 #endif
666
667 // Handle environment
668 const wxChar *val;
669 #ifndef __WXWINCE__
670 wxChar *tcp;
671 if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
672 (tcp = wxStrstr (dest, val)) != NULL)
673 {
674 wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
675 *tcp++ = wxT('$');
676 *tcp++ = wxT('{');
677 wxStrcpy (tcp, WXSTRINGCAST envname);
678 wxStrcat (tcp, wxT("}"));
679 wxStrcat (tcp, wxFileFunctionsBuffer);
680 }
681 #endif
682
683 // Handle User's home (ignore root homes!)
684 val = wxGetUserHome (user);
685 if (!val)
686 return dest;
687
688 const size_t len = wxStrlen(val);
689 if (len <= 2)
690 return dest;
691
692 if (wxStrncmp(dest, val, len) == 0)
693 {
694 wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
695 if (!user.empty())
696 wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
697 wxStrcat(wxFileFunctionsBuffer, dest + len);
698 wxStrcpy (dest, wxFileFunctionsBuffer);
699 }
700
701 return dest;
702 }
703
704 // Return just the filename, not the path (basename)
705 wxChar *wxFileNameFromPath (wxChar *path)
706 {
707 wxString p = path;
708 wxString n = wxFileNameFromPath(p);
709
710 return path + p.length() - n.length();
711 }
712
713 wxString wxFileNameFromPath (const wxString& path)
714 {
715 wxString name, ext;
716 wxFileName::SplitPath(path, NULL, &name, &ext);
717
718 wxString fullname = name;
719 if ( !ext.empty() )
720 {
721 fullname << wxFILE_SEP_EXT << ext;
722 }
723
724 return fullname;
725 }
726
727 // Return just the directory, or NULL if no directory
728 wxChar *
729 wxPathOnly (wxChar *path)
730 {
731 if (path && *path)
732 {
733 static wxChar buf[_MAXPATHLEN];
734
735 // Local copy
736 wxStrcpy (buf, path);
737
738 int l = wxStrlen(path);
739 int i = l - 1;
740
741 // Search backward for a backward or forward slash
742 while (i > -1)
743 {
744 #if defined(__WXMAC__) && !defined(__DARWIN__)
745 // Classic or Carbon CodeWarrior like
746 // Carbon with Apple DevTools is Unix like
747 if (path[i] == wxT(':') )
748 {
749 buf[i] = 0;
750 return buf;
751 }
752 #else
753 // Unix like or Windows
754 if (path[i] == wxT('/') || path[i] == wxT('\\'))
755 {
756 buf[i] = 0;
757 return buf;
758 }
759 #endif
760 #ifdef __VMS__
761 if (path[i] == wxT(']'))
762 {
763 buf[i+1] = 0;
764 return buf;
765 }
766 #endif
767 i --;
768 }
769
770 #if defined(__WXMSW__) || defined(__OS2__)
771 // Try Drive specifier
772 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
773 {
774 // A:junk --> A:. (since A:.\junk Not A:\junk)
775 buf[2] = wxT('.');
776 buf[3] = wxT('\0');
777 return buf;
778 }
779 #endif
780 }
781 return (wxChar *) NULL;
782 }
783
784 // Return just the directory, or NULL if no directory
785 wxString wxPathOnly (const wxString& path)
786 {
787 if (!path.empty())
788 {
789 wxChar buf[_MAXPATHLEN];
790
791 // Local copy
792 wxStrcpy (buf, WXSTRINGCAST path);
793
794 int l = path.Length();
795 int i = l - 1;
796
797 // Search backward for a backward or forward slash
798 while (i > -1)
799 {
800 #if defined(__WXMAC__) && !defined(__DARWIN__)
801 // Classic or Carbon CodeWarrior like
802 // Carbon with Apple DevTools is Unix like
803 if (path[i] == wxT(':') )
804 {
805 buf[i] = 0;
806 return wxString(buf);
807 }
808 #else
809 // Unix like or Windows
810 if (path[i] == wxT('/') || path[i] == wxT('\\'))
811 {
812 // Don't return an empty string
813 if (i == 0)
814 i ++;
815 buf[i] = 0;
816 return wxString(buf);
817 }
818 #endif
819 #ifdef __VMS__
820 if (path[i] == wxT(']'))
821 {
822 buf[i+1] = 0;
823 return wxString(buf);
824 }
825 #endif
826 i --;
827 }
828
829 #if defined(__WXMSW__) || defined(__OS2__)
830 // Try Drive specifier
831 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
832 {
833 // A:junk --> A:. (since A:.\junk Not A:\junk)
834 buf[2] = wxT('.');
835 buf[3] = wxT('\0');
836 return wxString(buf);
837 }
838 #endif
839 }
840 return wxEmptyString;
841 }
842
843 // Utility for converting delimiters in DOS filenames to UNIX style
844 // and back again - or we get nasty problems with delimiters.
845 // Also, convert to lower case, since case is significant in UNIX.
846
847 #if defined(__WXMAC__)
848
849 #if TARGET_API_MAC_OSX
850 #define kDefaultPathStyle kCFURLPOSIXPathStyle
851 #else
852 #define kDefaultPathStyle kCFURLHFSPathStyle
853 #endif
854
855 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
856 {
857 CFURLRef fullURLRef;
858 fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
859 if ( additionalPathComponent )
860 {
861 CFURLRef parentURLRef = fullURLRef ;
862 fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
863 additionalPathComponent,false);
864 CFRelease( parentURLRef ) ;
865 }
866 CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
867 CFRelease( fullURLRef ) ;
868 return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
869 }
870
871 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
872 {
873 OSStatus err = noErr ;
874 CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
875 if ( NULL != url )
876 {
877 if ( CFURLGetFSRef(url, fsRef) == false )
878 err = fnfErr ;
879 CFRelease( url ) ;
880 }
881 else
882 {
883 err = fnfErr ;
884 }
885 return err ;
886 }
887
888 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
889 {
890 CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
891 uniname->unicode,
892 uniname->length );
893 return wxMacCFStringHolder(cfname).AsString() ;
894 }
895
896 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
897 {
898 FSRef fsRef ;
899 if ( FSpMakeFSRef( spec , &fsRef) == noErr )
900 {
901 return wxMacFSRefToPath( &fsRef ) ;
902 }
903 return wxEmptyString ;
904 }
905
906 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
907 {
908 OSStatus err = noErr ;
909 FSRef fsRef ;
910 wxMacPathToFSRef( path , &fsRef ) ;
911 err = FSRefMakeFSSpec( &fsRef , spec ) ;
912 }
913
914 #endif // __WXMAC__
915
916 void
917 wxDos2UnixFilename (wxChar *s)
918 {
919 if (s)
920 while (*s)
921 {
922 if (*s == _T('\\'))
923 *s = _T('/');
924 #ifdef __WXMSW__
925 else
926 *s = (wxChar)wxTolower (*s); // Case INDEPENDENT
927 #endif
928 s++;
929 }
930 }
931
932 void
933 #if defined(__WXMSW__) || defined(__OS2__)
934 wxUnix2DosFilename (wxChar *s)
935 #else
936 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
937 #endif
938 {
939 // Yes, I really mean this to happen under DOS only! JACS
940 #if defined(__WXMSW__) || defined(__OS2__)
941 if (s)
942 while (*s)
943 {
944 if (*s == wxT('/'))
945 *s = wxT('\\');
946 s++;
947 }
948 #endif
949 }
950
951 // Concatenate two files to form third
952 bool
953 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
954 {
955 #if wxUSE_FILE
956
957 wxFile in1(file1), in2(file2);
958 wxTempFile out(file3);
959
960 if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
961 return false;
962
963 ssize_t ofs;
964 unsigned char buf[1024];
965
966 for( int i=0; i<2; i++)
967 {
968 wxFile *in = i==0 ? &in1 : &in2;
969 do{
970 if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
971 if ( ofs > 0 )
972 if ( !out.Write(buf,ofs) )
973 return false;
974 } while ( ofs == (ssize_t)WXSIZEOF(buf) );
975 }
976
977 return out.Commit();
978
979 #else
980
981 wxUnusedVar(file1);
982 wxUnusedVar(file2);
983 wxUnusedVar(file3);
984 return false;
985
986 #endif
987 }
988
989 // Copy files
990 bool
991 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
992 {
993 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
994 // CopyFile() copies file attributes and modification time too, so use it
995 // instead of our code if available
996 //
997 // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
998 if ( !::CopyFile(file1, file2, !overwrite) )
999 {
1000 wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1001 file1.c_str(), file2.c_str());
1002
1003 return false;
1004 }
1005 #elif defined(__OS2__)
1006 if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1007 return false;
1008 #elif defined(__PALMOS__)
1009 // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1010 return false;
1011 #elif wxUSE_FILE // !Win32
1012
1013 wxStructStat fbuf;
1014 // get permissions of file1
1015 if ( wxStat( file1.c_str(), &fbuf) != 0 )
1016 {
1017 // the file probably doesn't exist or we haven't the rights to read
1018 // from it anyhow
1019 wxLogSysError(_("Impossible to get permissions for file '%s'"),
1020 file1.c_str());
1021 return false;
1022 }
1023
1024 // open file1 for reading
1025 wxFile fileIn(file1, wxFile::read);
1026 if ( !fileIn.IsOpened() )
1027 return false;
1028
1029 // remove file2, if it exists. This is needed for creating
1030 // file2 with the correct permissions in the next step
1031 if ( wxFileExists(file2) && (!overwrite || !wxRemoveFile(file2)))
1032 {
1033 wxLogSysError(_("Impossible to overwrite the file '%s'"),
1034 file2.c_str());
1035 return false;
1036 }
1037
1038 // reset the umask as we want to create the file with exactly the same
1039 // permissions as the original one
1040 wxCHANGE_UMASK(0);
1041
1042 // create file2 with the same permissions than file1 and open it for
1043 // writing
1044
1045 wxFile fileOut;
1046 if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1047 return false;
1048
1049 // copy contents of file1 to file2
1050 char buf[4096];
1051 size_t count;
1052 for ( ;; )
1053 {
1054 count = fileIn.Read(buf, WXSIZEOF(buf));
1055 if ( fileIn.Error() )
1056 return false;
1057
1058 // end of file?
1059 if ( !count )
1060 break;
1061
1062 if ( fileOut.Write(buf, count) < count )
1063 return false;
1064 }
1065
1066 // we can expect fileIn to be closed successfully, but we should ensure
1067 // that fileOut was closed as some write errors (disk full) might not be
1068 // detected before doing this
1069 if ( !fileIn.Close() || !fileOut.Close() )
1070 return false;
1071
1072 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1073 // no chmod in VA. Should be some permission API for HPFS386 partitions
1074 // however
1075 if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1076 {
1077 wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1078 file2.c_str());
1079 return false;
1080 }
1081 #endif // OS/2 || Mac
1082
1083 #else // !Win32 && ! wxUSE_FILE
1084
1085 // impossible to simulate with wxWidgets API
1086 wxUnusedVar(file1);
1087 wxUnusedVar(file2);
1088 wxUnusedVar(overwrite);
1089 return false;
1090
1091 #endif // __WXMSW__ && __WIN32__
1092
1093 return true;
1094 }
1095
1096 bool
1097 wxRenameFile (const wxString& file1, const wxString& file2)
1098 {
1099 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1100 // Normal system call
1101 if ( wxRename (file1, file2) == 0 )
1102 return true;
1103 #endif
1104
1105 // Try to copy
1106 if (wxCopyFile(file1, file2)) {
1107 wxRemoveFile(file1);
1108 return true;
1109 }
1110 // Give up
1111 return false;
1112 }
1113
1114 bool wxRemoveFile(const wxString& file)
1115 {
1116 #if defined(__VISUALC__) \
1117 || defined(__BORLANDC__) \
1118 || defined(__WATCOMC__) \
1119 || defined(__DMC__) \
1120 || defined(__GNUWIN32__) \
1121 || (defined(__MWERKS__) && defined(__MSL__))
1122 int res = wxRemove(file);
1123 #elif defined(__WXMAC__)
1124 int res = unlink(wxFNCONV(file));
1125 #elif defined(__WXPALMOS__)
1126 int res = 1;
1127 // TODO with VFSFileDelete()
1128 #else
1129 int res = unlink(OS_FILENAME(file));
1130 #endif
1131
1132 return res == 0;
1133 }
1134
1135 bool wxMkdir(const wxString& dir, int perm)
1136 {
1137 #if defined(__WXPALMOS__)
1138 return false;
1139 #elif defined(__WXMAC__) && !defined(__UNIX__)
1140 return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1141 #else // !Mac
1142 const wxChar *dirname = dir.c_str();
1143
1144 // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1145 // for the GNU compiler
1146 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1147 #if defined(MSVCRT)
1148 wxUnusedVar(perm);
1149 if ( mkdir(wxFNCONV(dirname)) != 0 )
1150 #else
1151 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1152 #endif
1153 #elif defined(__OS2__)
1154 if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1155 #elif defined(__DOS__)
1156 #if defined(__WATCOMC__)
1157 (void)perm;
1158 if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1159 #elif defined(__DJGPP__)
1160 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1161 #else
1162 #error "Unsupported DOS compiler!"
1163 #endif
1164 #else // !MSW, !DOS and !OS/2 VAC++
1165 wxUnusedVar(perm);
1166 #ifdef __WXWINCE__
1167 if ( !CreateDirectory(dirname, NULL) )
1168 #else
1169 if ( wxMkDir(dir.fn_str()) != 0 )
1170 #endif
1171 #endif // !MSW/MSW
1172 {
1173 wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1174
1175 return false;
1176 }
1177
1178 return true;
1179 #endif // Mac/!Mac
1180 }
1181
1182 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1183 {
1184 #if defined(__VMS__)
1185 return false; //to be changed since rmdir exists in VMS7.x
1186 #elif defined(__OS2__)
1187 return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1188 #elif defined(__WXWINCE__)
1189 return (CreateDirectory(dir, NULL) != 0);
1190 #elif defined(__WXPALMOS__)
1191 // TODO with VFSFileRename()
1192 return false;
1193 #else
1194 return (wxRmDir(OS_FILENAME(dir)) == 0);
1195 #endif
1196 }
1197
1198 // does the path exists? (may have or not '/' or '\\' at the end)
1199 bool wxDirExists(const wxChar *pszPathName)
1200 {
1201 wxString strPath(pszPathName);
1202
1203 #if defined(__WINDOWS__) || defined(__OS2__)
1204 // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1205 // so remove all trailing backslashes from the path - but don't do this for
1206 // the pathes "d:\" (which are different from "d:") nor for just "\"
1207 while ( wxEndsWithPathSeparator(strPath) )
1208 {
1209 size_t len = strPath.length();
1210 if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1211 break;
1212
1213 strPath.Truncate(len - 1);
1214 }
1215 #endif // __WINDOWS__
1216
1217 #ifdef __OS2__
1218 // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1219 if (strPath.length() == 2 && strPath[1u] == _T(':'))
1220 strPath << _T('.');
1221 #endif
1222
1223 #if defined(__WXPALMOS__)
1224 return false;
1225 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1226 // stat() can't cope with network paths
1227 DWORD ret = ::GetFileAttributes(strPath);
1228
1229 return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1230 #elif defined(__OS2__)
1231 return (::DosSetCurrentDir((PSZ)(WXSTRINGCAST strPath)));
1232 #else // !__WIN32__
1233
1234 wxStructStat st;
1235 #ifndef __VISAGECPP__
1236 return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1237 #else
1238 // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1239 return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1240 #endif
1241
1242 #endif // __WIN32__/!__WIN32__
1243 }
1244
1245 // Get a temporary filename, opening and closing the file.
1246 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1247 {
1248 #if wxUSE_FILE
1249 wxString filename = wxFileName::CreateTempFileName(prefix);
1250 if ( filename.empty() )
1251 return NULL;
1252
1253 if ( buf )
1254 wxStrcpy(buf, filename);
1255 else
1256 buf = MYcopystring(filename);
1257
1258 return buf;
1259 #else
1260 wxUnusedVar(prefix);
1261 wxUnusedVar(buf);
1262 // wxFileName::CreateTempFileName needs wxFile class enabled
1263 return NULL;
1264 #endif
1265 }
1266
1267 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1268 {
1269 buf = wxGetTempFileName(prefix);
1270
1271 return !buf.empty();
1272 }
1273
1274 // Get first file name matching given wild card.
1275
1276 static wxDir *gs_dir = NULL;
1277 static wxString gs_dirPath;
1278
1279 wxString wxFindFirstFile(const wxChar *spec, int flags)
1280 {
1281 wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1282 if ( gs_dirPath.empty() )
1283 gs_dirPath = wxT(".");
1284 if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1285 gs_dirPath << wxFILE_SEP_PATH;
1286
1287 if (gs_dir)
1288 delete gs_dir;
1289 gs_dir = new wxDir(gs_dirPath);
1290
1291 if ( !gs_dir->IsOpened() )
1292 {
1293 wxLogSysError(_("Can not enumerate files '%s'"), spec);
1294 return wxEmptyString;
1295 }
1296
1297 int dirFlags;
1298 switch (flags)
1299 {
1300 case wxDIR: dirFlags = wxDIR_DIRS; break;
1301 case wxFILE: dirFlags = wxDIR_FILES; break;
1302 default: dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1303 }
1304
1305 wxString result;
1306 gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1307 if ( result.empty() )
1308 {
1309 wxDELETE(gs_dir);
1310 return result;
1311 }
1312
1313 return gs_dirPath + result;
1314 }
1315
1316 wxString wxFindNextFile()
1317 {
1318 wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1319
1320 wxString result;
1321 gs_dir->GetNext(&result);
1322
1323 if ( result.empty() )
1324 {
1325 wxDELETE(gs_dir);
1326 return result;
1327 }
1328
1329 return gs_dirPath + result;
1330 }
1331
1332
1333 // Get current working directory.
1334 // If buf is NULL, allocates space using new, else
1335 // copies into buf.
1336 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1337 {
1338 #if defined(__WXPALMOS__)
1339 // TODO ?
1340 return NULL;
1341 #elif defined(__WXWINCE__)
1342 // TODO
1343 wxUnusedVar(buf);
1344 wxUnusedVar(sz);
1345 return NULL;
1346 #else
1347 if ( !buf )
1348 {
1349 buf = new wxChar[sz + 1];
1350 }
1351
1352 bool ok wxDUMMY_INITIALIZE(false);
1353
1354 // for the compilers which have Unicode version of _getcwd(), call it
1355 // directly, for the others call the ANSI version and do the translation
1356 #if !wxUSE_UNICODE
1357 #define cbuf buf
1358 #else // wxUSE_UNICODE
1359 bool needsANSI = true;
1360
1361 #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1362 // This is not legal code as the compiler
1363 // is allowed destroy the wxCharBuffer.
1364 // wxCharBuffer c_buffer(sz);
1365 // char *cbuf = (char*)(const char*)c_buffer;
1366 char cbuf[_MAXPATHLEN];
1367 #endif
1368
1369 #ifdef HAVE_WGETCWD
1370 #if wxUSE_UNICODE_MSLU
1371 if ( wxGetOsVersion() != wxWIN95 )
1372 #else
1373 char *cbuf = NULL; // never really used because needsANSI will always be false
1374 #endif
1375 {
1376 ok = _wgetcwd(buf, sz) != NULL;
1377 needsANSI = false;
1378 }
1379 #endif
1380
1381 if ( needsANSI )
1382 #endif // wxUSE_UNICODE
1383 {
1384 #if defined(_MSC_VER) || defined(__MINGW32__)
1385 ok = _getcwd(cbuf, sz) != NULL;
1386 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1387 char lbuf[1024] ;
1388 if ( getcwd( lbuf , sizeof( lbuf ) ) )
1389 {
1390 wxString res( lbuf , *wxConvCurrent ) ;
1391 wxStrcpy( buf , res ) ;
1392 ok = true;
1393 }
1394 else
1395 ok = false ;
1396 #elif defined(__OS2__)
1397 APIRET rc;
1398 ULONG ulDriveNum = 0;
1399 ULONG ulDriveMap = 0;
1400 rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1401 ok = rc == 0;
1402 if (ok)
1403 {
1404 sz -= 3;
1405 rc = ::DosQueryCurrentDir( 0 // current drive
1406 ,cbuf + 3
1407 ,(PULONG)&sz
1408 );
1409 cbuf[0] = 'A' + (ulDriveNum - 1);
1410 cbuf[1] = ':';
1411 cbuf[2] = '\\';
1412 ok = rc == 0;
1413 }
1414 #else // !Win32/VC++ !Mac !OS2
1415 ok = getcwd(cbuf, sz) != NULL;
1416 #endif // platform
1417
1418 #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1419 // finally convert the result to Unicode if needed
1420 wxConvFile.MB2WC(buf, cbuf, sz);
1421 #endif // wxUSE_UNICODE
1422 }
1423
1424 if ( !ok )
1425 {
1426 wxLogSysError(_("Failed to get the working directory"));
1427
1428 // VZ: the old code used to return "." on error which didn't make any
1429 // sense at all to me - empty string is a better error indicator
1430 // (NULL might be even better but I'm afraid this could lead to
1431 // problems with the old code assuming the return is never NULL)
1432 buf[0] = _T('\0');
1433 }
1434 else // ok, but we might need to massage the path into the right format
1435 {
1436 #ifdef __DJGPP__
1437 // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1438 // with / deliminers. We don't like that.
1439 for (wxChar *ch = buf; *ch; ch++)
1440 {
1441 if (*ch == wxT('/'))
1442 *ch = wxT('\\');
1443 }
1444 #endif // __DJGPP__
1445
1446 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1447 // he needs Unix as opposed to Win32 pathnames
1448 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1449 // another example of DOS/Unix mix (Cygwin)
1450 wxString pathUnix = buf;
1451 cygwin_conv_to_full_win32_path(pathUnix, buf);
1452 #endif // __CYGWIN__
1453 }
1454
1455 return buf;
1456
1457 #if !wxUSE_UNICODE
1458 #undef cbuf
1459 #endif
1460
1461 #endif
1462 // __WXWINCE__
1463 }
1464
1465 wxString wxGetCwd()
1466 {
1467 wxChar *buffer = new wxChar[_MAXPATHLEN];
1468 wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1469 wxString str( buffer );
1470 delete [] buffer;
1471
1472 return str;
1473 }
1474
1475 bool wxSetWorkingDirectory(const wxString& d)
1476 {
1477 #if defined(__OS2__)
1478 return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1479 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1480 return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1481 #elif defined(__WINDOWS__)
1482
1483 #ifdef __WIN32__
1484 #ifdef __WXWINCE__
1485 // No equivalent in WinCE
1486 wxUnusedVar(d);
1487 return false;
1488 #else
1489 return (bool)(SetCurrentDirectory(d) != 0);
1490 #endif
1491 #else
1492 // Must change drive, too.
1493 bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1494 if (isDriveSpec)
1495 {
1496 wxChar firstChar = d[0];
1497
1498 // To upper case
1499 if (firstChar > 90)
1500 firstChar = firstChar - 32;
1501
1502 // To a drive number
1503 unsigned int driveNo = firstChar - 64;
1504 if (driveNo > 0)
1505 {
1506 unsigned int noDrives;
1507 _dos_setdrive(driveNo, &noDrives);
1508 }
1509 }
1510 bool success = (chdir(WXSTRINGCAST d) == 0);
1511
1512 return success;
1513 #endif
1514
1515 #endif
1516 }
1517
1518 // Get the OS directory if appropriate (such as the Windows directory).
1519 // On non-Windows platform, probably just return the empty string.
1520 wxString wxGetOSDirectory()
1521 {
1522 #ifdef __WXWINCE__
1523 return wxString(wxT("\\Windows"));
1524 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1525 wxChar buf[256];
1526 GetWindowsDirectory(buf, 256);
1527 return wxString(buf);
1528 #elif defined(__WXMAC__)
1529 return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1530 #else
1531 return wxEmptyString;
1532 #endif
1533 }
1534
1535 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1536 {
1537 size_t len = wxStrlen(pszFileName);
1538
1539 return len && wxIsPathSeparator(pszFileName[len - 1]);
1540 }
1541
1542 // find a file in a list of directories, returns false if not found
1543 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1544 {
1545 // we assume that it's not empty
1546 wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1547 _T("empty file name in wxFindFileInPath"));
1548
1549 // skip path separator in the beginning of the file name if present
1550 if ( wxIsPathSeparator(*pszFile) )
1551 pszFile++;
1552
1553 // copy the path (strtok will modify it)
1554 wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1555 wxStrcpy(szPath, pszPath);
1556
1557 wxString strFile;
1558 wxChar *pc, *save_ptr;
1559 for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1560 pc != NULL;
1561 pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1562 {
1563 // search for the file in this directory
1564 strFile = pc;
1565 if ( !wxEndsWithPathSeparator(pc) )
1566 strFile += wxFILE_SEP_PATH;
1567 strFile += pszFile;
1568
1569 if ( wxFileExists(strFile) ) {
1570 *pStr = strFile;
1571 break;
1572 }
1573 }
1574
1575 // suppress warning about unused variable save_ptr when wxStrtok() is a
1576 // macro which throws away its third argument
1577 save_ptr = pc;
1578
1579 delete [] szPath;
1580
1581 return pc != NULL; // if true => we breaked from the loop
1582 }
1583
1584 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1585 wxString *pstrPath,
1586 wxString *pstrName,
1587 wxString *pstrExt)
1588 {
1589 // it can be empty, but it shouldn't be NULL
1590 wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1591
1592 wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1593 }
1594
1595 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1596 {
1597 #if defined(__WXPALMOS__)
1598 return 0;
1599 #elif defined(__WXWINCE__)
1600 FILETIME ftLastWrite;
1601 AutoHANDLE hFile(::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
1602 NULL, 0, FILE_ATTRIBUTE_NORMAL, 0));
1603
1604 if ( !hFile.IsOk() )
1605 return 0;
1606
1607 if ( !::GetFileTime(hFile, NULL, NULL, &ftLastWrite) )
1608 return 0;
1609
1610 // sure we want to translate to local time here?
1611 FILETIME ftLocal;
1612 if ( !::FileTimeToLocalFileTime(&ftLastWrite, &ftLocal) )
1613 {
1614 wxLogLastError(_T("FileTimeToLocalFileTime"));
1615 }
1616
1617 // FILETIME is a counted in 100-ns since 1601-01-01, convert it to
1618 // number of seconds since 1970-01-01
1619 ULARGE_INTEGER uli;
1620 uli.LowPart = ftLocal.dwLowDateTime;
1621 uli.HighPart = ftLocal.dwHighDateTime;
1622
1623 ULONGLONG ull = uli.QuadPart;
1624 ull /= wxULL(10000000); // number of 100ns intervals in 1s
1625 ull -= wxULL(11644473600); // 1970-01-01 - 1601-01-01 in seconds
1626
1627 return wx_static_cast(time_t, ull);
1628 #else
1629 wxStructStat buf;
1630 if ( wxStat( filename, &buf) != 0 )
1631 return 0;
1632
1633 return buf.st_mtime;
1634 #endif
1635 }
1636
1637
1638 // Parses the filterStr, returning the number of filters.
1639 // Returns 0 if none or if there's a problem.
1640 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1641
1642 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr,
1643 wxArrayString& descriptions,
1644 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)