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[wxWidgets.git] / src / common / filefn.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/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 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22 #include "wx/defs.h"
23
24 #ifdef __BORLANDC__
25 #pragma hdrstop
26 #endif
27
28 #include "wx/utils.h"
29 #include "wx/intl.h"
30 #include "wx/file.h" // This does include filefn.h
31 #include "wx/filename.h"
32 #include "wx/dir.h"
33
34 // there are just too many of those...
35 #ifdef __VISUALC__
36 #pragma warning(disable:4706) // assignment within conditional expression
37 #endif // VC++
38
39 #include <ctype.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #if !wxONLY_WATCOM_EARLIER_THAN(1,4)
44 #if !(defined(_MSC_VER) && (_MSC_VER > 800))
45 #include <errno.h>
46 #endif
47 #endif
48
49 #if defined(__WXMAC__)
50 #include "wx/mac/private.h" // includes mac headers
51 #endif
52
53 #include "wx/log.h"
54
55 #ifdef __WINDOWS__
56 #include "wx/msw/private.h"
57 #include "wx/msw/mslu.h"
58
59 // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
60 //
61 // note that it must be included after <windows.h>
62 #ifdef __GNUWIN32__
63 #ifdef __CYGWIN__
64 #include <sys/cygwin.h>
65 #endif
66 #endif // __GNUWIN32__
67
68 // io.h is needed for _get_osfhandle()
69 // Already included by filefn.h for many Windows compilers
70 #if defined __MWERKS__ || defined __CYGWIN__
71 #include <io.h>
72 #endif
73 #endif // __WINDOWS__
74
75 #if defined(__VMS__)
76 #include <fab.h>
77 #endif
78
79 // TODO: Borland probably has _wgetcwd as well?
80 #ifdef _MSC_VER
81 #define HAVE_WGETCWD
82 #endif
83
84 // ----------------------------------------------------------------------------
85 // constants
86 // ----------------------------------------------------------------------------
87
88 #ifndef _MAXPATHLEN
89 #define _MAXPATHLEN 1024
90 #endif
91
92 #ifdef __WXMAC__
93 # include "MoreFilesX.h"
94 #endif
95
96 // ----------------------------------------------------------------------------
97 // private globals
98 // ----------------------------------------------------------------------------
99
100 // MT-FIXME: get rid of this horror and all code using it
101 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
102
103 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
104 //
105 // VisualAge C++ V4.0 cannot have any external linkage const decs
106 // in headers included by more than one primary source
107 //
108 const int wxInvalidOffset = -1;
109 #endif
110
111 // ----------------------------------------------------------------------------
112 // macros
113 // ----------------------------------------------------------------------------
114
115 // we need to translate Mac filenames before passing them to OS functions
116 #define OS_FILENAME(s) (s.fn_str())
117
118 // ============================================================================
119 // implementation
120 // ============================================================================
121
122 #ifdef wxNEED_WX_UNISTD_H
123
124 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
125 {
126 return stat( wxConvFile.cWX2MB( file_name ), buf );
127 }
128
129 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
130 {
131 return access( wxConvFile.cWX2MB( pathname ), mode );
132 }
133
134 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
135 {
136 return open( wxConvFile.cWX2MB( pathname ), flags, mode );
137 }
138
139 #endif
140 // wxNEED_WX_UNISTD_H
141
142 // ----------------------------------------------------------------------------
143 // wxPathList
144 // ----------------------------------------------------------------------------
145
146 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
147
148 static inline wxChar* MYcopystring(const wxString& s)
149 {
150 wxChar* copy = new wxChar[s.length() + 1];
151 return wxStrcpy(copy, s.c_str());
152 }
153
154 static inline wxChar* MYcopystring(const wxChar* s)
155 {
156 wxChar* copy = new wxChar[wxStrlen(s) + 1];
157 return wxStrcpy(copy, s);
158 }
159
160 void wxPathList::Add (const wxString& path)
161 {
162 wxStringList::Add (WXSTRINGCAST path);
163 }
164
165 // Add paths e.g. from the PATH environment variable
166 void wxPathList::AddEnvList (const wxString& WXUNUSED_IN_WINCE(envVariable))
167 {
168 // No environment variables on WinCE
169 #ifndef __WXWINCE__
170 static const wxChar PATH_TOKS[] =
171 #if defined(__WINDOWS__) || defined(__OS2__)
172 /*
173 The space has been removed from the tokenizers, otherwise a
174 path such as "C:\Program Files" would be split into 2 paths:
175 "C:\Program" and "Files"
176 */
177 // wxT(" ;"); // Don't separate with colon in DOS (used for drive)
178 wxT(";"); // Don't separate with colon in DOS (used for drive)
179 #else
180 wxT(" :;");
181 #endif
182
183 wxString val ;
184 if (wxGetEnv (WXSTRINGCAST envVariable, &val))
185 {
186 wxChar *s = MYcopystring (val);
187 wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
188
189 if (token)
190 {
191 Add(token);
192 while (token)
193 {
194 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
195 != NULL )
196 {
197 Add(token);
198 }
199 }
200 }
201
202 // suppress warning about unused variable save_ptr when wxStrtok() is a
203 // macro which throws away its third argument
204 save_ptr = token;
205
206 delete [] s;
207 }
208 #endif // !__WXWINCE__
209 }
210
211 // Given a full filename (with path), ensure that that file can
212 // be accessed again USING FILENAME ONLY by adding the path
213 // to the list if not already there.
214 void wxPathList::EnsureFileAccessible (const wxString& path)
215 {
216 wxString path_only(wxPathOnly(path));
217 if ( !path_only.empty() )
218 {
219 if ( !Member(path_only) )
220 Add(path_only);
221 }
222 }
223
224 bool wxPathList::Member (const wxString& path)
225 {
226 for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
227 {
228 wxString path2( node->GetData() );
229 if (
230 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined(__WXMAC__)
231 // Case INDEPENDENT
232 path.CompareTo (path2, wxString::ignoreCase) == 0
233 #else
234 // Case sensitive File System
235 path.CompareTo (path2) == 0
236 #endif
237 )
238 return true;
239 }
240 return false;
241 }
242
243 wxString wxPathList::FindValidPath (const wxString& file)
244 {
245 if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
246 return wxString(wxFileFunctionsBuffer);
247
248 wxChar buf[_MAXPATHLEN];
249 wxStrcpy(buf, wxFileFunctionsBuffer);
250
251 wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
252
253 for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
254 {
255 const wxChar *path = node->GetData();
256 wxStrcpy (wxFileFunctionsBuffer, path);
257 wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
258 if (ch != wxT('\\') && ch != wxT('/'))
259 wxStrcat (wxFileFunctionsBuffer, wxT("/"));
260 wxStrcat (wxFileFunctionsBuffer, filename);
261 #ifdef __WINDOWS__
262 wxUnix2DosFilename (wxFileFunctionsBuffer);
263 #endif
264 if (wxFileExists (wxFileFunctionsBuffer))
265 {
266 return wxString(wxFileFunctionsBuffer); // Found!
267 }
268 } // for()
269
270 return wxEmptyString; // Not found
271 }
272
273 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
274 {
275 wxString f = FindValidPath(file);
276 if ( f.empty() || wxIsAbsolutePath(f) )
277 return f;
278
279 wxString buf = ::wxGetCwd();
280
281 if ( !wxEndsWithPathSeparator(buf) )
282 {
283 buf += wxFILE_SEP_PATH;
284 }
285 buf += f;
286
287 return buf;
288 }
289
290 bool
291 wxFileExists (const wxString& filename)
292 {
293 #if defined(__WXPALMOS__)
294 return false;
295 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
296 // we must use GetFileAttributes() instead of the ANSI C functions because
297 // it can cope with network (UNC) paths unlike them
298 DWORD ret = ::GetFileAttributes(filename);
299
300 return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
301 #else // !__WIN32__
302 wxStructStat st;
303 #ifndef wxNEED_WX_UNISTD_H
304 return (wxStat( filename.fn_str() , &st) == 0 && (st.st_mode & S_IFREG))
305 #ifdef __OS2__
306 || (errno == EACCES) // if access is denied something with that name
307 // exists and is opened in exclusive mode.
308 #endif
309 ;
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 wxString wxRealPath(const wxString& path)
440 {
441 wxChar *buf1=MYcopystring(path);
442 wxChar *buf2=wxRealPath(buf1);
443 wxString buf(buf2);
444 delete [] buf1;
445 return buf;
446 }
447
448
449 // Must be destroyed
450 wxChar *wxCopyAbsolutePath(const wxString& filename)
451 {
452 if (filename.empty())
453 return (wxChar *) NULL;
454
455 if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename)))
456 {
457 wxString buf = ::wxGetCwd();
458 wxChar ch = buf.Last();
459 #ifdef __WXMSW__
460 if (ch != wxT('\\') && ch != wxT('/'))
461 buf << wxT("\\");
462 #else
463 if (ch != wxT('/'))
464 buf << wxT("/");
465 #endif
466 buf << wxFileFunctionsBuffer;
467 buf = wxRealPath( buf );
468 return MYcopystring( buf );
469 }
470 return MYcopystring( wxFileFunctionsBuffer );
471 }
472
473 /*-
474 Handles:
475 ~/ => home dir
476 ~user/ => user's home dir
477 If the environment variable a = "foo" and b = "bar" then:
478 Unix:
479 $a => foo
480 $a$b => foobar
481 $a.c => foo.c
482 xxx$a => xxxfoo
483 ${a}! => foo!
484 $(b)! => bar!
485 \$a => \$a
486 MSDOS:
487 $a ==> $a
488 $(a) ==> foo
489 $(a)$b ==> foo$b
490 $(a)$(b)==> foobar
491 test.$$ ==> test.$$
492 */
493
494 /* input name in name, pathname output to buf. */
495
496 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
497 {
498 register wxChar *d, *s, *nm;
499 wxChar lnm[_MAXPATHLEN];
500 int q;
501
502 // Some compilers don't like this line.
503 // const wxChar trimchars[] = wxT("\n \t");
504
505 wxChar trimchars[4];
506 trimchars[0] = wxT('\n');
507 trimchars[1] = wxT(' ');
508 trimchars[2] = wxT('\t');
509 trimchars[3] = 0;
510
511 #ifdef __WXMSW__
512 const wxChar SEP = wxT('\\');
513 #else
514 const wxChar SEP = wxT('/');
515 #endif
516 buf[0] = wxT('\0');
517 if (name == NULL || *name == wxT('\0'))
518 return buf;
519 nm = MYcopystring(name); // Make a scratch copy
520 wxChar *nm_tmp = nm;
521
522 /* Skip leading whitespace and cr */
523 while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
524 nm++;
525 /* And strip off trailing whitespace and cr */
526 s = nm + (q = wxStrlen(nm)) - 1;
527 while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
528 *s = wxT('\0');
529
530 s = nm;
531 d = lnm;
532 #ifdef __WXMSW__
533 q = FALSE;
534 #else
535 q = nm[0] == wxT('\\') && nm[1] == wxT('~');
536 #endif
537
538 /* Expand inline environment variables */
539 #ifdef __VISAGECPP__
540 while (*d)
541 {
542 *d++ = *s;
543 if(*s == wxT('\\'))
544 {
545 *(d - 1) = *++s;
546 if (*d)
547 {
548 s++;
549 continue;
550 }
551 else
552 break;
553 }
554 else
555 #else
556 while ((*d++ = *s) != 0) {
557 # ifndef __WXMSW__
558 if (*s == wxT('\\')) {
559 if ((*(d - 1) = *++s)!=0) {
560 s++;
561 continue;
562 } else
563 break;
564 } else
565 # endif
566 #endif
567 // No env variables on WinCE
568 #ifndef __WXWINCE__
569 #ifdef __WXMSW__
570 if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
571 #else
572 if (*s++ == wxT('$'))
573 #endif
574 {
575 register wxChar *start = d;
576 register int braces = (*s == wxT('{') || *s == wxT('('));
577 register wxChar *value;
578 while ((*d++ = *s) != 0)
579 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
580 break;
581 else
582 s++;
583 *--d = 0;
584 value = wxGetenv(braces ? start + 1 : start);
585 if (value) {
586 for ((d = start - 1); (*d++ = *value++) != 0;)
587 {
588 // Empty
589 }
590
591 d--;
592 if (braces && *s)
593 s++;
594 }
595 }
596 #endif
597 // __WXWINCE__
598 }
599
600 /* Expand ~ and ~user */
601 nm = lnm;
602 if (nm[0] == wxT('~') && !q)
603 {
604 /* prefix ~ */
605 if (nm[1] == SEP || nm[1] == 0)
606 { /* ~/filename */
607 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
608 if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
609 if (*++nm)
610 nm++;
611 }
612 } else
613 { /* ~user/filename */
614 register wxChar *nnm;
615 register wxChar *home;
616 for (s = nm; *s && *s != SEP; s++)
617 {
618 // Empty
619 }
620 int was_sep; /* MATTHEW: Was there a separator, or NULL? */
621 was_sep = (*s == SEP);
622 nnm = *s ? s + 1 : s;
623 *s = 0;
624 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
625 if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL)
626 {
627 if (was_sep) /* replace only if it was there: */
628 *s = SEP;
629 s = NULL;
630 }
631 else
632 {
633 nm = nnm;
634 s = home;
635 }
636 }
637 }
638
639 d = buf;
640 if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
641 /* Copy home dir */
642 while (wxT('\0') != (*d++ = *s++))
643 /* loop */;
644 // Handle root home
645 if (d - 1 > buf && *(d - 2) != SEP)
646 *(d - 1) = SEP;
647 }
648 s = nm;
649 while ((*d++ = *s++) != 0)
650 {
651 // Empty
652 }
653 delete[] nm_tmp; // clean up alloc
654 /* Now clean up the buffer */
655 return wxRealPath(buf);
656 }
657
658 /* Contract Paths to be build upon an environment variable
659 component:
660
661 example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
662
663 The call wxExpandPath can convert these back!
664 */
665 wxChar *
666 wxContractPath (const wxString& filename,
667 const wxString& WXUNUSED_IN_WINCE(envname),
668 const wxString& user)
669 {
670 static wxChar dest[_MAXPATHLEN];
671
672 if (filename.empty())
673 return (wxChar *) NULL;
674
675 wxStrcpy (dest, WXSTRINGCAST filename);
676 #ifdef __WXMSW__
677 wxUnix2DosFilename(dest);
678 #endif
679
680 // Handle environment
681 const wxChar *val;
682 #ifndef __WXWINCE__
683 wxChar *tcp;
684 if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
685 (tcp = wxStrstr (dest, val)) != NULL)
686 {
687 wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
688 *tcp++ = wxT('$');
689 *tcp++ = wxT('{');
690 wxStrcpy (tcp, WXSTRINGCAST envname);
691 wxStrcat (tcp, wxT("}"));
692 wxStrcat (tcp, wxFileFunctionsBuffer);
693 }
694 #endif
695
696 // Handle User's home (ignore root homes!)
697 val = wxGetUserHome (user);
698 if (!val)
699 return dest;
700
701 const size_t len = wxStrlen(val);
702 if (len <= 2)
703 return dest;
704
705 if (wxStrncmp(dest, val, len) == 0)
706 {
707 wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
708 if (!user.empty())
709 wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
710 wxStrcat(wxFileFunctionsBuffer, dest + len);
711 wxStrcpy (dest, wxFileFunctionsBuffer);
712 }
713
714 return dest;
715 }
716
717 // Return just the filename, not the path (basename)
718 wxChar *wxFileNameFromPath (wxChar *path)
719 {
720 wxString p = path;
721 wxString n = wxFileNameFromPath(p);
722
723 return path + p.length() - n.length();
724 }
725
726 wxString wxFileNameFromPath (const wxString& path)
727 {
728 wxString name, ext;
729 wxFileName::SplitPath(path, NULL, &name, &ext);
730
731 wxString fullname = name;
732 if ( !ext.empty() )
733 {
734 fullname << wxFILE_SEP_EXT << ext;
735 }
736
737 return fullname;
738 }
739
740 // Return just the directory, or NULL if no directory
741 wxChar *
742 wxPathOnly (wxChar *path)
743 {
744 if (path && *path)
745 {
746 static wxChar buf[_MAXPATHLEN];
747
748 // Local copy
749 wxStrcpy (buf, path);
750
751 int l = wxStrlen(path);
752 int i = l - 1;
753
754 // Search backward for a backward or forward slash
755 while (i > -1)
756 {
757 #if defined(__WXMAC__) && !defined(__DARWIN__)
758 // Classic or Carbon CodeWarrior like
759 // Carbon with Apple DevTools is Unix like
760 if (path[i] == wxT(':') )
761 {
762 buf[i] = 0;
763 return buf;
764 }
765 #else
766 // Unix like or Windows
767 if (path[i] == wxT('/') || path[i] == wxT('\\'))
768 {
769 buf[i] = 0;
770 return buf;
771 }
772 #endif
773 #ifdef __VMS__
774 if (path[i] == wxT(']'))
775 {
776 buf[i+1] = 0;
777 return buf;
778 }
779 #endif
780 i --;
781 }
782
783 #if defined(__WXMSW__) || defined(__OS2__)
784 // Try Drive specifier
785 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
786 {
787 // A:junk --> A:. (since A:.\junk Not A:\junk)
788 buf[2] = wxT('.');
789 buf[3] = wxT('\0');
790 return buf;
791 }
792 #endif
793 }
794 return (wxChar *) NULL;
795 }
796
797 // Return just the directory, or NULL if no directory
798 wxString wxPathOnly (const wxString& path)
799 {
800 if (!path.empty())
801 {
802 wxChar buf[_MAXPATHLEN];
803
804 // Local copy
805 wxStrcpy (buf, WXSTRINGCAST path);
806
807 int l = path.length();
808 int i = l - 1;
809
810 // Search backward for a backward or forward slash
811 while (i > -1)
812 {
813 #if defined(__WXMAC__) && !defined(__DARWIN__)
814 // Classic or Carbon CodeWarrior like
815 // Carbon with Apple DevTools is Unix like
816 if (path[i] == wxT(':') )
817 {
818 buf[i] = 0;
819 return wxString(buf);
820 }
821 #else
822 // Unix like or Windows
823 if (path[i] == wxT('/') || path[i] == wxT('\\'))
824 {
825 // Don't return an empty string
826 if (i == 0)
827 i ++;
828 buf[i] = 0;
829 return wxString(buf);
830 }
831 #endif
832 #ifdef __VMS__
833 if (path[i] == wxT(']'))
834 {
835 buf[i+1] = 0;
836 return wxString(buf);
837 }
838 #endif
839 i --;
840 }
841
842 #if defined(__WXMSW__) || defined(__OS2__)
843 // Try Drive specifier
844 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
845 {
846 // A:junk --> A:. (since A:.\junk Not A:\junk)
847 buf[2] = wxT('.');
848 buf[3] = wxT('\0');
849 return wxString(buf);
850 }
851 #endif
852 }
853 return wxEmptyString;
854 }
855
856 // Utility for converting delimiters in DOS filenames to UNIX style
857 // and back again - or we get nasty problems with delimiters.
858 // Also, convert to lower case, since case is significant in UNIX.
859
860 #if defined(__WXMAC__)
861
862 #if TARGET_API_MAC_OSX
863 #define kDefaultPathStyle kCFURLPOSIXPathStyle
864 #else
865 #define kDefaultPathStyle kCFURLHFSPathStyle
866 #endif
867
868 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
869 {
870 CFURLRef fullURLRef;
871 fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
872 if ( additionalPathComponent )
873 {
874 CFURLRef parentURLRef = fullURLRef ;
875 fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
876 additionalPathComponent,false);
877 CFRelease( parentURLRef ) ;
878 }
879 CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
880 CFRelease( fullURLRef ) ;
881 return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
882 }
883
884 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
885 {
886 OSStatus err = noErr ;
887 CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
888 if ( NULL != url )
889 {
890 if ( CFURLGetFSRef(url, fsRef) == false )
891 err = fnfErr ;
892 CFRelease( url ) ;
893 }
894 else
895 {
896 err = fnfErr ;
897 }
898 return err ;
899 }
900
901 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
902 {
903 CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
904 uniname->unicode,
905 uniname->length );
906 return wxMacCFStringHolder(cfname).AsString() ;
907 }
908
909 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
910 {
911 FSRef fsRef ;
912 if ( FSpMakeFSRef( spec , &fsRef) == noErr )
913 {
914 return wxMacFSRefToPath( &fsRef ) ;
915 }
916 return wxEmptyString ;
917 }
918
919 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
920 {
921 OSStatus err = noErr ;
922 FSRef fsRef ;
923 wxMacPathToFSRef( path , &fsRef ) ;
924 err = FSRefMakeFSSpec( &fsRef , spec ) ;
925 }
926
927 #endif // __WXMAC__
928
929 void
930 wxDos2UnixFilename (wxChar *s)
931 {
932 if (s)
933 while (*s)
934 {
935 if (*s == _T('\\'))
936 *s = _T('/');
937 #ifdef __WXMSW__
938 else
939 *s = (wxChar)wxTolower (*s); // Case INDEPENDENT
940 #endif
941 s++;
942 }
943 }
944
945 void
946 #if defined(__WXMSW__) || defined(__OS2__)
947 wxUnix2DosFilename (wxChar *s)
948 #else
949 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
950 #endif
951 {
952 // Yes, I really mean this to happen under DOS only! JACS
953 #if defined(__WXMSW__) || defined(__OS2__)
954 if (s)
955 while (*s)
956 {
957 if (*s == wxT('/'))
958 *s = wxT('\\');
959 s++;
960 }
961 #endif
962 }
963
964 // Concatenate two files to form third
965 bool
966 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
967 {
968 #if wxUSE_FILE
969
970 wxFile in1(file1), in2(file2);
971 wxTempFile out(file3);
972
973 if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
974 return false;
975
976 ssize_t ofs;
977 unsigned char buf[1024];
978
979 for( int i=0; i<2; i++)
980 {
981 wxFile *in = i==0 ? &in1 : &in2;
982 do{
983 if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
984 if ( ofs > 0 )
985 if ( !out.Write(buf,ofs) )
986 return false;
987 } while ( ofs == (ssize_t)WXSIZEOF(buf) );
988 }
989
990 return out.Commit();
991
992 #else
993
994 wxUnusedVar(file1);
995 wxUnusedVar(file2);
996 wxUnusedVar(file3);
997 return false;
998
999 #endif
1000 }
1001
1002 // Copy files
1003 bool
1004 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1005 {
1006 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1007 // CopyFile() copies file attributes and modification time too, so use it
1008 // instead of our code if available
1009 //
1010 // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1011 if ( !::CopyFile(file1, file2, !overwrite) )
1012 {
1013 wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1014 file1.c_str(), file2.c_str());
1015
1016 return false;
1017 }
1018 #elif defined(__OS2__)
1019 if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1020 return false;
1021 #elif defined(__PALMOS__)
1022 // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1023 return false;
1024 #elif wxUSE_FILE // !Win32
1025
1026 wxStructStat fbuf;
1027 // get permissions of file1
1028 if ( wxStat( file1.c_str(), &fbuf) != 0 )
1029 {
1030 // the file probably doesn't exist or we haven't the rights to read
1031 // from it anyhow
1032 wxLogSysError(_("Impossible to get permissions for file '%s'"),
1033 file1.c_str());
1034 return false;
1035 }
1036
1037 // open file1 for reading
1038 wxFile fileIn(file1, wxFile::read);
1039 if ( !fileIn.IsOpened() )
1040 return false;
1041
1042 // remove file2, if it exists. This is needed for creating
1043 // file2 with the correct permissions in the next step
1044 if ( wxFileExists(file2) && (!overwrite || !wxRemoveFile(file2)))
1045 {
1046 wxLogSysError(_("Impossible to overwrite the file '%s'"),
1047 file2.c_str());
1048 return false;
1049 }
1050
1051 // reset the umask as we want to create the file with exactly the same
1052 // permissions as the original one
1053 wxCHANGE_UMASK(0);
1054
1055 // create file2 with the same permissions than file1 and open it for
1056 // writing
1057
1058 wxFile fileOut;
1059 if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1060 return false;
1061
1062 // copy contents of file1 to file2
1063 char buf[4096];
1064 size_t count;
1065 for ( ;; )
1066 {
1067 count = fileIn.Read(buf, WXSIZEOF(buf));
1068 if ( fileIn.Error() )
1069 return false;
1070
1071 // end of file?
1072 if ( !count )
1073 break;
1074
1075 if ( fileOut.Write(buf, count) < count )
1076 return false;
1077 }
1078
1079 // we can expect fileIn to be closed successfully, but we should ensure
1080 // that fileOut was closed as some write errors (disk full) might not be
1081 // detected before doing this
1082 if ( !fileIn.Close() || !fileOut.Close() )
1083 return false;
1084
1085 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1086 // no chmod in VA. Should be some permission API for HPFS386 partitions
1087 // however
1088 if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1089 {
1090 wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1091 file2.c_str());
1092 return false;
1093 }
1094 #endif // OS/2 || Mac
1095
1096 #else // !Win32 && ! wxUSE_FILE
1097
1098 // impossible to simulate with wxWidgets API
1099 wxUnusedVar(file1);
1100 wxUnusedVar(file2);
1101 wxUnusedVar(overwrite);
1102 return false;
1103
1104 #endif // __WXMSW__ && __WIN32__
1105
1106 return true;
1107 }
1108
1109 bool
1110 wxRenameFile (const wxString& file1, const wxString& file2)
1111 {
1112 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1113 // Normal system call
1114 if ( wxRename (file1, file2) == 0 )
1115 return true;
1116 #endif
1117
1118 // Try to copy
1119 if (wxCopyFile(file1, file2)) {
1120 wxRemoveFile(file1);
1121 return true;
1122 }
1123 // Give up
1124 return false;
1125 }
1126
1127 bool wxRemoveFile(const wxString& file)
1128 {
1129 #if defined(__VISUALC__) \
1130 || defined(__BORLANDC__) \
1131 || defined(__WATCOMC__) \
1132 || defined(__DMC__) \
1133 || defined(__GNUWIN32__) \
1134 || (defined(__MWERKS__) && defined(__MSL__))
1135 int res = wxRemove(file);
1136 #elif defined(__WXMAC__)
1137 int res = unlink(wxFNCONV(file));
1138 #elif defined(__WXPALMOS__)
1139 int res = 1;
1140 // TODO with VFSFileDelete()
1141 #else
1142 int res = unlink(OS_FILENAME(file));
1143 #endif
1144
1145 return res == 0;
1146 }
1147
1148 bool wxMkdir(const wxString& dir, int perm)
1149 {
1150 #if defined(__WXPALMOS__)
1151 return false;
1152 #elif defined(__WXMAC__) && !defined(__UNIX__)
1153 return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1154 #else // !Mac
1155 const wxChar *dirname = dir.c_str();
1156
1157 // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1158 // for the GNU compiler
1159 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1160 #if defined(MSVCRT)
1161 wxUnusedVar(perm);
1162 if ( mkdir(wxFNCONV(dirname)) != 0 )
1163 #else
1164 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1165 #endif
1166 #elif defined(__OS2__)
1167 wxUnusedVar(perm);
1168 if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1169 #elif defined(__DOS__)
1170 #if defined(__WATCOMC__)
1171 (void)perm;
1172 if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1173 #elif defined(__DJGPP__)
1174 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1175 #else
1176 #error "Unsupported DOS compiler!"
1177 #endif
1178 #else // !MSW, !DOS and !OS/2 VAC++
1179 wxUnusedVar(perm);
1180 #ifdef __WXWINCE__
1181 if ( !CreateDirectory(dirname, NULL) )
1182 #else
1183 if ( wxMkDir(dir.fn_str()) != 0 )
1184 #endif
1185 #endif // !MSW/MSW
1186 {
1187 wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1188
1189 return false;
1190 }
1191
1192 return true;
1193 #endif // Mac/!Mac
1194 }
1195
1196 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1197 {
1198 #if defined(__VMS__)
1199 return false; //to be changed since rmdir exists in VMS7.x
1200 #elif defined(__OS2__)
1201 return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1202 #elif defined(__WXWINCE__)
1203 return (CreateDirectory(dir, NULL) != 0);
1204 #elif defined(__WXPALMOS__)
1205 // TODO with VFSFileRename()
1206 return false;
1207 #else
1208 return (wxRmDir(OS_FILENAME(dir)) == 0);
1209 #endif
1210 }
1211
1212 // does the path exists? (may have or not '/' or '\\' at the end)
1213 bool wxDirExists(const wxChar *pszPathName)
1214 {
1215 wxString strPath(pszPathName);
1216
1217 #if defined(__WINDOWS__) || defined(__OS2__)
1218 // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1219 // so remove all trailing backslashes from the path - but don't do this for
1220 // the pathes "d:\" (which are different from "d:") nor for just "\"
1221 while ( wxEndsWithPathSeparator(strPath) )
1222 {
1223 size_t len = strPath.length();
1224 if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1225 break;
1226
1227 strPath.Truncate(len - 1);
1228 }
1229 #endif // __WINDOWS__
1230
1231 #ifdef __OS2__
1232 // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1233 if (strPath.length() == 2 && strPath[1u] == _T(':'))
1234 strPath << _T('.');
1235 #endif
1236
1237 #if defined(__WXPALMOS__)
1238 return false;
1239 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1240 // stat() can't cope with network paths
1241 DWORD ret = ::GetFileAttributes(strPath);
1242
1243 return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1244 #elif defined(__OS2__)
1245 FILESTATUS3 Info = {{0}};
1246 APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
1247 (void*) &Info, sizeof(FILESTATUS3));
1248
1249 return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
1250 (rc == ERROR_SHARING_VIOLATION);
1251 // If we got a sharing violation, there must be something with this name.
1252 #else // !__WIN32__
1253
1254 wxStructStat st;
1255 #ifndef __VISAGECPP__
1256 return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1257 #else
1258 // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1259 return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1260 #endif
1261
1262 #endif // __WIN32__/!__WIN32__
1263 }
1264
1265 // Get a temporary filename, opening and closing the file.
1266 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1267 {
1268 #if wxUSE_FILE
1269 wxString filename = wxFileName::CreateTempFileName(prefix);
1270 if ( filename.empty() )
1271 return NULL;
1272
1273 if ( buf )
1274 wxStrcpy(buf, filename);
1275 else
1276 buf = MYcopystring(filename);
1277
1278 return buf;
1279 #else
1280 wxUnusedVar(prefix);
1281 wxUnusedVar(buf);
1282 // wxFileName::CreateTempFileName needs wxFile class enabled
1283 return NULL;
1284 #endif
1285 }
1286
1287 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1288 {
1289 buf = wxGetTempFileName(prefix);
1290
1291 return !buf.empty();
1292 }
1293
1294 // Get first file name matching given wild card.
1295
1296 static wxDir *gs_dir = NULL;
1297 static wxString gs_dirPath;
1298
1299 wxString wxFindFirstFile(const wxChar *spec, int flags)
1300 {
1301 wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1302 if ( gs_dirPath.empty() )
1303 gs_dirPath = wxT(".");
1304 if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1305 gs_dirPath << wxFILE_SEP_PATH;
1306
1307 if (gs_dir)
1308 delete gs_dir;
1309 gs_dir = new wxDir(gs_dirPath);
1310
1311 if ( !gs_dir->IsOpened() )
1312 {
1313 wxLogSysError(_("Can not enumerate files '%s'"), spec);
1314 return wxEmptyString;
1315 }
1316
1317 int dirFlags;
1318 switch (flags)
1319 {
1320 case wxDIR: dirFlags = wxDIR_DIRS; break;
1321 case wxFILE: dirFlags = wxDIR_FILES; break;
1322 default: dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1323 }
1324
1325 wxString result;
1326 gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1327 if ( result.empty() )
1328 {
1329 wxDELETE(gs_dir);
1330 return result;
1331 }
1332
1333 return gs_dirPath + result;
1334 }
1335
1336 wxString wxFindNextFile()
1337 {
1338 wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1339
1340 wxString result;
1341 gs_dir->GetNext(&result);
1342
1343 if ( result.empty() )
1344 {
1345 wxDELETE(gs_dir);
1346 return result;
1347 }
1348
1349 return gs_dirPath + result;
1350 }
1351
1352
1353 // Get current working directory.
1354 // If buf is NULL, allocates space using new, else copies into buf.
1355 // wxGetWorkingDirectory() is obsolete, use wxGetCwd()
1356 // wxDoGetCwd() is their common core to be moved
1357 // to wxGetCwd() once wxGetWorkingDirectory() will be removed.
1358 // Do not expose wxDoGetCwd in headers!
1359
1360 wxChar *wxDoGetCwd(wxChar *buf, int sz)
1361 {
1362 #if defined(__WXPALMOS__)
1363 // TODO
1364 if(buf && sz>0) buf[0] = _T('\0');
1365 return buf;
1366 #elif defined(__WXWINCE__)
1367 // TODO
1368 if(buf && sz>0) buf[0] = _T('\0');
1369 return buf;
1370 #else
1371 if ( !buf )
1372 {
1373 buf = new wxChar[sz + 1];
1374 }
1375
1376 bool ok wxDUMMY_INITIALIZE(false);
1377
1378 // for the compilers which have Unicode version of _getcwd(), call it
1379 // directly, for the others call the ANSI version and do the translation
1380 #if !wxUSE_UNICODE
1381 #define cbuf buf
1382 #else // wxUSE_UNICODE
1383 bool needsANSI = true;
1384
1385 #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1386 char cbuf[_MAXPATHLEN];
1387 #endif
1388
1389 #ifdef HAVE_WGETCWD
1390 #if wxUSE_UNICODE_MSLU
1391 if ( wxGetOsVersion() != wxWIN95 )
1392 #else
1393 char *cbuf = NULL; // never really used because needsANSI will always be false
1394 #endif
1395 {
1396 ok = _wgetcwd(buf, sz) != NULL;
1397 needsANSI = false;
1398 }
1399 #endif
1400
1401 if ( needsANSI )
1402 #endif // wxUSE_UNICODE
1403 {
1404 #if defined(_MSC_VER) || defined(__MINGW32__)
1405 ok = _getcwd(cbuf, sz) != NULL;
1406 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1407 char lbuf[1024] ;
1408 if ( getcwd( lbuf , sizeof( lbuf ) ) )
1409 {
1410 wxString res( lbuf , *wxConvCurrent ) ;
1411 wxStrcpy( buf , res ) ;
1412 ok = true;
1413 }
1414 else
1415 ok = false ;
1416 #elif defined(__OS2__)
1417 APIRET rc;
1418 ULONG ulDriveNum = 0;
1419 ULONG ulDriveMap = 0;
1420 rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1421 ok = rc == 0;
1422 if (ok)
1423 {
1424 sz -= 3;
1425 rc = ::DosQueryCurrentDir( 0 // current drive
1426 ,cbuf + 3
1427 ,(PULONG)&sz
1428 );
1429 cbuf[0] = char('A' + (ulDriveNum - 1));
1430 cbuf[1] = ':';
1431 cbuf[2] = '\\';
1432 ok = rc == 0;
1433 }
1434 #else // !Win32/VC++ !Mac !OS2
1435 ok = getcwd(cbuf, sz) != NULL;
1436 #endif // platform
1437
1438 #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1439 // finally convert the result to Unicode if needed
1440 wxConvFile.MB2WC(buf, cbuf, sz);
1441 #endif // wxUSE_UNICODE
1442 }
1443
1444 if ( !ok )
1445 {
1446 wxLogSysError(_("Failed to get the working directory"));
1447
1448 // VZ: the old code used to return "." on error which didn't make any
1449 // sense at all to me - empty string is a better error indicator
1450 // (NULL might be even better but I'm afraid this could lead to
1451 // problems with the old code assuming the return is never NULL)
1452 buf[0] = _T('\0');
1453 }
1454 else // ok, but we might need to massage the path into the right format
1455 {
1456 #ifdef __DJGPP__
1457 // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1458 // with / deliminers. We don't like that.
1459 for (wxChar *ch = buf; *ch; ch++)
1460 {
1461 if (*ch == wxT('/'))
1462 *ch = wxT('\\');
1463 }
1464 #endif // __DJGPP__
1465
1466 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1467 // he needs Unix as opposed to Win32 pathnames
1468 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1469 // another example of DOS/Unix mix (Cygwin)
1470 wxString pathUnix = buf;
1471 #if wxUSE_UNICODE
1472 char bufA[_MAXPATHLEN];
1473 cygwin_conv_to_full_win32_path(pathUnix.mb_str(wxConvFile), bufA);
1474 wxConvFile.MB2WC(buf, bufA, sz);
1475 #else
1476 cygwin_conv_to_full_win32_path(pathUnix, buf);
1477 #endif // wxUSE_UNICODE
1478 #endif // __CYGWIN__
1479 }
1480
1481 return buf;
1482
1483 #if !wxUSE_UNICODE
1484 #undef cbuf
1485 #endif
1486
1487 #endif
1488 // __WXWINCE__
1489 }
1490
1491 #if WXWIN_COMPATIBILITY_2_6
1492 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1493 {
1494 return wxDoGetCwd(buf,sz);
1495 }
1496 #endif // WXWIN_COMPATIBILITY_2_6
1497
1498 wxString wxGetCwd()
1499 {
1500 wxString str;
1501 wxDoGetCwd(wxStringBuffer(str, _MAXPATHLEN), _MAXPATHLEN);
1502 return str;
1503 }
1504
1505 bool wxSetWorkingDirectory(const wxString& d)
1506 {
1507 #if defined(__OS2__)
1508 return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1509 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1510 return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1511 #elif defined(__WINDOWS__)
1512
1513 #ifdef __WIN32__
1514 #ifdef __WXWINCE__
1515 // No equivalent in WinCE
1516 wxUnusedVar(d);
1517 return false;
1518 #else
1519 return (bool)(SetCurrentDirectory(d) != 0);
1520 #endif
1521 #else
1522 // Must change drive, too.
1523 bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1524 if (isDriveSpec)
1525 {
1526 wxChar firstChar = d[0];
1527
1528 // To upper case
1529 if (firstChar > 90)
1530 firstChar = firstChar - 32;
1531
1532 // To a drive number
1533 unsigned int driveNo = firstChar - 64;
1534 if (driveNo > 0)
1535 {
1536 unsigned int noDrives;
1537 _dos_setdrive(driveNo, &noDrives);
1538 }
1539 }
1540 bool success = (chdir(WXSTRINGCAST d) == 0);
1541
1542 return success;
1543 #endif
1544
1545 #endif
1546 }
1547
1548 // Get the OS directory if appropriate (such as the Windows directory).
1549 // On non-Windows platform, probably just return the empty string.
1550 wxString wxGetOSDirectory()
1551 {
1552 #ifdef __WXWINCE__
1553 return wxString(wxT("\\Windows"));
1554 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1555 wxChar buf[256];
1556 GetWindowsDirectory(buf, 256);
1557 return wxString(buf);
1558 #elif defined(__WXMAC__)
1559 return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1560 #else
1561 return wxEmptyString;
1562 #endif
1563 }
1564
1565 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1566 {
1567 size_t len = wxStrlen(pszFileName);
1568
1569 return len && wxIsPathSeparator(pszFileName[len - 1]);
1570 }
1571
1572 // find a file in a list of directories, returns false if not found
1573 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1574 {
1575 // we assume that it's not empty
1576 wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1577 _T("empty file name in wxFindFileInPath"));
1578
1579 // skip path separator in the beginning of the file name if present
1580 if ( wxIsPathSeparator(*pszFile) )
1581 pszFile++;
1582
1583 // copy the path (strtok will modify it)
1584 wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1585 wxStrcpy(szPath, pszPath);
1586
1587 wxString strFile;
1588 wxChar *pc, *save_ptr;
1589 for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1590 pc != NULL;
1591 pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1592 {
1593 // search for the file in this directory
1594 strFile = pc;
1595 if ( !wxEndsWithPathSeparator(pc) )
1596 strFile += wxFILE_SEP_PATH;
1597 strFile += pszFile;
1598
1599 if ( wxFileExists(strFile) ) {
1600 *pStr = strFile;
1601 break;
1602 }
1603 }
1604
1605 // suppress warning about unused variable save_ptr when wxStrtok() is a
1606 // macro which throws away its third argument
1607 save_ptr = pc;
1608
1609 delete [] szPath;
1610
1611 return pc != NULL; // if true => we breaked from the loop
1612 }
1613
1614 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1615 wxString *pstrPath,
1616 wxString *pstrName,
1617 wxString *pstrExt)
1618 {
1619 // it can be empty, but it shouldn't be NULL
1620 wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1621
1622 wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1623 }
1624
1625 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1626 {
1627 #if defined(__WXPALMOS__)
1628 return 0;
1629 #elif defined(__WXWINCE__)
1630 FILETIME ftLastWrite;
1631 AutoHANDLE hFile(::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
1632 NULL, 0, FILE_ATTRIBUTE_NORMAL, 0));
1633
1634 if ( !hFile.IsOk() )
1635 return 0;
1636
1637 if ( !::GetFileTime(hFile, NULL, NULL, &ftLastWrite) )
1638 return 0;
1639
1640 // sure we want to translate to local time here?
1641 FILETIME ftLocal;
1642 if ( !::FileTimeToLocalFileTime(&ftLastWrite, &ftLocal) )
1643 {
1644 wxLogLastError(_T("FileTimeToLocalFileTime"));
1645 }
1646
1647 // FILETIME is a counted in 100-ns since 1601-01-01, convert it to
1648 // number of seconds since 1970-01-01
1649 ULARGE_INTEGER uli;
1650 uli.LowPart = ftLocal.dwLowDateTime;
1651 uli.HighPart = ftLocal.dwHighDateTime;
1652
1653 ULONGLONG ull = uli.QuadPart;
1654 ull /= wxULL(10000000); // number of 100ns intervals in 1s
1655 ull -= wxULL(11644473600); // 1970-01-01 - 1601-01-01 in seconds
1656
1657 return wx_static_cast(time_t, ull);
1658 #else
1659 wxStructStat buf;
1660 if ( wxStat( filename, &buf) != 0 )
1661 return 0;
1662
1663 return buf.st_mtime;
1664 #endif
1665 }
1666
1667
1668 // Parses the filterStr, returning the number of filters.
1669 // Returns 0 if none or if there's a problem.
1670 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1671
1672 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr,
1673 wxArrayString& descriptions,
1674 wxArrayString& filters)
1675 {
1676 descriptions.Clear();
1677 filters.Clear();
1678
1679 wxString str(filterStr);
1680
1681 wxString description, filter;
1682 int pos = 0;
1683 while( pos != wxNOT_FOUND )
1684 {
1685 pos = str.Find(wxT('|'));
1686 if ( pos == wxNOT_FOUND )
1687 {
1688 // if there are no '|'s at all in the string just take the entire
1689 // string as filter and make description empty for later autocompletion
1690 if ( filters.IsEmpty() )
1691 {
1692 descriptions.Add(wxEmptyString);
1693 filters.Add(filterStr);
1694 }
1695 else
1696 {
1697 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1698 }
1699
1700 break;
1701 }
1702
1703 description = str.Left(pos);
1704 str = str.Mid(pos + 1);
1705 pos = str.Find(wxT('|'));
1706 if ( pos == wxNOT_FOUND )
1707 {
1708 filter = str;
1709 }
1710 else
1711 {
1712 filter = str.Left(pos);
1713 str = str.Mid(pos + 1);
1714 }
1715
1716 descriptions.Add(description);
1717 filters.Add(filter);
1718 }
1719
1720 #if defined(__WXMOTIF__)
1721 // split it so there is one wildcard per entry
1722 for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1723 {
1724 pos = filters[i].Find(wxT(';'));
1725 if (pos != wxNOT_FOUND)
1726 {
1727 // first split only filters
1728 descriptions.Insert(descriptions[i],i+1);
1729 filters.Insert(filters[i].Mid(pos+1),i+1);
1730 filters[i]=filters[i].Left(pos);
1731
1732 // autoreplace new filter in description with pattern:
1733 // C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1734 // cause split into:
1735 // C/C++ Files(*.cpp)|*.cpp
1736 // C/C++ Files(*.c;*.h)|*.c;*.h
1737 // and next iteration cause another split into:
1738 // C/C++ Files(*.cpp)|*.cpp
1739 // C/C++ Files(*.c)|*.c
1740 // C/C++ Files(*.h)|*.h
1741 for ( size_t k=i;k<i+2;k++ )
1742 {
1743 pos = descriptions[k].Find(filters[k]);
1744 if (pos != wxNOT_FOUND)
1745 {
1746 wxString before = descriptions[k].Left(pos);
1747 wxString after = descriptions[k].Mid(pos+filters[k].Len());
1748 pos = before.Find(_T('('),true);
1749 if (pos>before.Find(_T(')'),true))
1750 {
1751 before = before.Left(pos+1);
1752 before << filters[k];
1753 pos = after.Find(_T(')'));
1754 int pos1 = after.Find(_T('('));
1755 if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1756 {
1757 before << after.Mid(pos);
1758 descriptions[k] = before;
1759 }
1760 }
1761 }
1762 }
1763 }
1764 }
1765 #endif
1766
1767 // autocompletion
1768 for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1769 {
1770 if ( descriptions[j].empty() && !filters[j].empty() )
1771 {
1772 descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1773 }
1774 }
1775
1776 return filters.GetCount();
1777 }
1778
1779
1780 //------------------------------------------------------------------------
1781 // wild character routines
1782 //------------------------------------------------------------------------
1783
1784 bool wxIsWild( const wxString& pattern )
1785 {
1786 wxString tmp = pattern;
1787 wxChar *pat = WXSTRINGCAST(tmp);
1788 while (*pat)
1789 {
1790 switch (*pat++)
1791 {
1792 case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1793 return true;
1794 case wxT('\\'):
1795 if (!*pat++)
1796 return false;
1797 }
1798 }
1799 return false;
1800 }
1801
1802 /*
1803 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1804 *
1805 * The match procedure is public domain code (from ircII's reg.c)
1806 */
1807
1808 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1809 {
1810 if (text.empty())
1811 {
1812 /* Match if both are empty. */
1813 return pat.empty();
1814 }
1815
1816 const wxChar *m = pat.c_str(),
1817 *n = text.c_str(),
1818 *ma = NULL,
1819 *na = NULL,
1820 *mp = NULL,
1821 *np = NULL;
1822 int just = 0,
1823 pcount = 0,
1824 acount = 0,
1825 count = 0;
1826
1827 if (dot_special && (*n == wxT('.')))
1828 {
1829 /* Never match so that hidden Unix files
1830 * are never found. */
1831 return false;
1832 }
1833
1834 for (;;)
1835 {
1836 if (*m == wxT('*'))
1837 {
1838 ma = ++m;
1839 na = n;
1840 just = 1;
1841 mp = NULL;
1842 acount = count;
1843 }
1844 else if (*m == wxT('?'))
1845 {
1846 m++;
1847 if (!*n++)
1848 return false;
1849 }
1850 else
1851 {
1852 if (*m == wxT('\\'))
1853 {
1854 m++;
1855 /* Quoting "nothing" is a bad thing */
1856 if (!*m)
1857 return false;
1858 }
1859 if (!*m)
1860 {
1861 /*
1862 * If we are out of both strings or we just
1863 * saw a wildcard, then we can say we have a
1864 * match
1865 */
1866 if (!*n)
1867 return true;
1868 if (just)
1869 return true;
1870 just = 0;
1871 goto not_matched;
1872 }
1873 /*
1874 * We could check for *n == NULL at this point, but
1875 * since it's more common to have a character there,
1876 * check to see if they match first (m and n) and
1877 * then if they don't match, THEN we can check for
1878 * the NULL of n
1879 */
1880 just = 0;
1881 if (*m == *n)
1882 {
1883 m++;
1884 if (*n == wxT(' '))
1885 mp = NULL;
1886 count++;
1887 n++;
1888 }
1889 else
1890 {
1891
1892 not_matched:
1893
1894 /*
1895 * If there are no more characters in the
1896 * string, but we still need to find another
1897 * character (*m != NULL), then it will be
1898 * impossible to match it
1899 */
1900 if (!*n)
1901 return false;
1902 if (mp)
1903 {
1904 m = mp;
1905 if (*np == wxT(' '))
1906 {
1907 mp = NULL;
1908 goto check_percent;
1909 }
1910 n = ++np;
1911 count = pcount;
1912 }
1913 else
1914 check_percent:
1915
1916 if (ma)
1917 {
1918 m = ma;
1919 n = ++na;
1920 count = acount;
1921 }
1922 else
1923 return false;
1924 }
1925 }
1926 }
1927 }
1928
1929 // Return the type of an open file
1930 //
1931 // Some file types on some platforms seem seekable but in fact are not.
1932 // The main use of this function is to allow such cases to be detected
1933 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1934 //
1935 // This is important for the archive streams, which benefit greatly from
1936 // being able to seek on a stream, but which will produce corrupt archives
1937 // if they unknowingly seek on a non-seekable stream.
1938 //
1939 // wxFILE_KIND_DISK is a good catch all return value, since other values
1940 // disable features of the archive streams. Some other value must be returned
1941 // for a file type that appears seekable but isn't.
1942 //
1943 // Known examples:
1944 // * Pipes on Windows
1945 // * Files on VMS with a record format other than StreamLF
1946 //
1947 wxFileKind wxGetFileKind(int fd)
1948 {
1949 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1950 switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1951 {
1952 case FILE_TYPE_CHAR:
1953 return wxFILE_KIND_TERMINAL;
1954 case FILE_TYPE_DISK:
1955 return wxFILE_KIND_DISK;
1956 case FILE_TYPE_PIPE:
1957 return wxFILE_KIND_PIPE;
1958 }
1959
1960 return wxFILE_KIND_UNKNOWN;
1961
1962 #elif defined(__UNIX__)
1963 if (isatty(fd))
1964 return wxFILE_KIND_TERMINAL;
1965
1966 struct stat st;
1967 fstat(fd, &st);
1968
1969 if (S_ISFIFO(st.st_mode))
1970 return wxFILE_KIND_PIPE;
1971 if (!S_ISREG(st.st_mode))
1972 return wxFILE_KIND_UNKNOWN;
1973
1974 #if defined(__VMS__)
1975 if (st.st_fab_rfm != FAB$C_STMLF)
1976 return wxFILE_KIND_UNKNOWN;
1977 #endif
1978
1979 return wxFILE_KIND_DISK;
1980
1981 #else
1982 #define wxFILEKIND_STUB
1983 (void)fd;
1984 return wxFILE_KIND_DISK;
1985 #endif
1986 }
1987
1988 wxFileKind wxGetFileKind(FILE *fp)
1989 {
1990 // Note: The watcom rtl dll doesn't have fileno (the static lib does).
1991 // Should be fixed in version 1.4.
1992 #if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4)
1993 (void)fp;
1994 return wxFILE_KIND_DISK;
1995 #else
1996 return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN;
1997 #endif
1998 }
1999
2000 #ifdef __VISUALC__
2001 #pragma warning(default:4706) // assignment within conditional expression
2002 #endif // VC++
wxWidgets (Impactor)