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1/////////////////////////////////////////////////////////////////////////////
2// Name: src/common/filename.cpp
3// Purpose: wxFileName - encapsulates a file path
4// Author: Robert Roebling, Vadim Zeitlin
5// Modified by:
6// Created: 28.12.2000
7// RCS-ID: $Id$
8// Copyright: (c) 2000 Robert Roebling
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12/*
13 Here are brief descriptions of the filename formats supported by this class:
14
15 wxPATH_UNIX: standard Unix format, used under Darwin as well, absolute file
16 names have the form:
17 /dir1/dir2/.../dirN/filename, "." and ".." stand for the
18 current and parent directory respectively, "~" is parsed as the
19 user HOME and "~username" as the HOME of that user
20
21 wxPATH_DOS: DOS/Windows format, absolute file names have the form:
22 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
23 letter. "." and ".." as for Unix but no "~".
24
25 There are also UNC names of the form \\share\fullpath
26
27 wxPATH_MAC: Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
28 names have the form
29 volume:dir1:...:dirN:filename
30 and the relative file names are either
31 :dir1:...:dirN:filename
32 or just
33 filename
34 (although :filename works as well).
35 Since the volume is just part of the file path, it is not
36 treated like a separate entity as it is done under DOS and
37 VMS, it is just treated as another dir.
38
39 wxPATH_VMS: VMS native format, absolute file names have the form
40 <device>:[dir1.dir2.dir3]file.txt
41 or
42 <device>:[000000.dir1.dir2.dir3]file.txt
43
44 the <device> is the physical device (i.e. disk). 000000 is the
45 root directory on the device which can be omitted.
46
47 Note that VMS uses different separators unlike Unix:
48 : always after the device. If the path does not contain : than
49 the default (the device of the current directory) is assumed.
50 [ start of directory specyfication
51 . separator between directory and subdirectory
52 ] between directory and file
53 */
54
55// ============================================================================
56// declarations
57// ============================================================================
58
59// ----------------------------------------------------------------------------
60// headers
61// ----------------------------------------------------------------------------
62
63#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
64#pragma implementation "filename.h"
65#endif
66
67// For compilers that support precompilation, includes "wx.h".
68#include "wx/wxprec.h"
69
70#ifdef __BORLANDC__
71#pragma hdrstop
72#endif
73
74#ifndef WX_PRECOMP
75#include "wx/intl.h"
76#include "wx/log.h"
77#include "wx/file.h"
78#endif
79
80#include "wx/filename.h"
81#include "wx/tokenzr.h"
82#include "wx/config.h" // for wxExpandEnvVars
83#include "wx/utils.h"
84#include "wx/file.h"
85#include "wx/dynlib.h"
86
87// For GetShort/LongPathName
88#ifdef __WIN32__
89#include "wx/msw/wrapwin.h"
90#endif
91
92#ifdef __WXWINCE__
93#include "wx/msw/private.h"
94#endif
95
96#if defined(__WXMAC__)
97 #include "wx/mac/private.h" // includes mac headers
98#endif
99
100// utime() is POSIX so should normally be available on all Unices
101#ifdef __UNIX_LIKE__
102#include <sys/types.h>
103#include <utime.h>
104#include <sys/stat.h>
105#include <unistd.h>
106#endif
107
108#ifdef __DJGPP__
109#include <unistd.h>
110#endif
111
112#ifdef __MWERKS__
113#ifdef __MACH__
114#include <sys/types.h>
115#include <utime.h>
116#include <sys/stat.h>
117#include <unistd.h>
118#else
119#include <stat.h>
120#include <unistd.h>
121#include <unix.h>
122#endif
123#endif
124
125#ifdef __WATCOMC__
126#include <io.h>
127#include <sys/utime.h>
128#include <sys/stat.h>
129#endif
130
131#ifdef __VISAGECPP__
132#ifndef MAX_PATH
133#define MAX_PATH 256
134#endif
135#endif
136
137#ifdef __EMX__
138#include <os2.h>
139#define MAX_PATH _MAX_PATH
140#endif
141
142// ----------------------------------------------------------------------------
143// private classes
144// ----------------------------------------------------------------------------
145
146// small helper class which opens and closes the file - we use it just to get
147// a file handle for the given file name to pass it to some Win32 API function
148#if defined(__WIN32__) && !defined(__WXMICROWIN__)
149
150class wxFileHandle
151{
152public:
153 enum OpenMode
154 {
155 Read,
156 Write
157 };
158
159 wxFileHandle(const wxString& filename, OpenMode mode)
160 {
161 m_hFile = ::CreateFile
162 (
163 filename, // name
164 mode == Read ? GENERIC_READ // access mask
165 : GENERIC_WRITE,
166 FILE_SHARE_READ | // sharing mode
167 FILE_SHARE_WRITE, // (allow everything)
168 NULL, // no secutity attr
169 OPEN_EXISTING, // creation disposition
170 0, // no flags
171 NULL // no template file
172 );
173
174 if ( m_hFile == INVALID_HANDLE_VALUE )
175 {
176 wxLogSysError(_("Failed to open '%s' for %s"),
177 filename.c_str(),
178 mode == Read ? _("reading") : _("writing"));
179 }
180 }
181
182 ~wxFileHandle()
183 {
184 if ( m_hFile != INVALID_HANDLE_VALUE )
185 {
186 if ( !::CloseHandle(m_hFile) )
187 {
188 wxLogSysError(_("Failed to close file handle"));
189 }
190 }
191 }
192
193 // return true only if the file could be opened successfully
194 bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
195
196 // get the handle
197 operator HANDLE() const { return m_hFile; }
198
199private:
200 HANDLE m_hFile;
201};
202
203#endif // __WIN32__
204
205// ----------------------------------------------------------------------------
206// private functions
207// ----------------------------------------------------------------------------
208
209#if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
210
211// convert between wxDateTime and FILETIME which is a 64-bit value representing
212// the number of 100-nanosecond intervals since January 1, 1601.
213
214static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
215{
216 FILETIME ftcopy = ft;
217 FILETIME ftLocal;
218 if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
219 {
220 wxLogLastError(_T("FileTimeToLocalFileTime"));
221 }
222
223 SYSTEMTIME st;
224 if ( !::FileTimeToSystemTime(&ftLocal, &st) )
225 {
226 wxLogLastError(_T("FileTimeToSystemTime"));
227 }
228
229 dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
230 st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
231}
232
233static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
234{
235 SYSTEMTIME st;
236 st.wDay = dt.GetDay();
237 st.wMonth = dt.GetMonth() + 1;
238 st.wYear = dt.GetYear();
239 st.wHour = dt.GetHour();
240 st.wMinute = dt.GetMinute();
241 st.wSecond = dt.GetSecond();
242 st.wMilliseconds = dt.GetMillisecond();
243
244 FILETIME ftLocal;
245 if ( !::SystemTimeToFileTime(&st, &ftLocal) )
246 {
247 wxLogLastError(_T("SystemTimeToFileTime"));
248 }
249
250 if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
251 {
252 wxLogLastError(_T("LocalFileTimeToFileTime"));
253 }
254}
255
256#endif // wxUSE_DATETIME && __WIN32__
257
258// return a string with the volume par
259static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
260{
261 wxString path;
262
263 if ( !volume.empty() )
264 {
265 format = wxFileName::GetFormat(format);
266
267 // Special Windows UNC paths hack, part 2: undo what we did in
268 // SplitPath() and make an UNC path if we have a drive which is not a
269 // single letter (hopefully the network shares can't be one letter only
270 // although I didn't find any authoritative docs on this)
271 if ( format == wxPATH_DOS && volume.length() > 1 )
272 {
273 path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
274 }
275 else if ( format == wxPATH_DOS || format == wxPATH_VMS )
276 {
277 path << volume << wxFileName::GetVolumeSeparator(format);
278 }
279 // else ignore
280 }
281
282 return path;
283}
284
285// ============================================================================
286// implementation
287// ============================================================================
288
289// ----------------------------------------------------------------------------
290// wxFileName construction
291// ----------------------------------------------------------------------------
292
293void wxFileName::Assign( const wxFileName &filepath )
294{
295 m_volume = filepath.GetVolume();
296 m_dirs = filepath.GetDirs();
297 m_name = filepath.GetName();
298 m_ext = filepath.GetExt();
299 m_relative = filepath.m_relative;
300}
301
302void wxFileName::Assign(const wxString& volume,
303 const wxString& path,
304 const wxString& name,
305 const wxString& ext,
306 wxPathFormat format )
307{
308 SetPath( path, format );
309
310 m_volume = volume;
311 m_ext = ext;
312 m_name = name;
313}
314
315void wxFileName::SetPath( const wxString& pathOrig, wxPathFormat format )
316{
317 m_dirs.Clear();
318
319 if ( pathOrig.empty() )
320 {
321 // no path at all
322 m_relative = true;
323
324 return;
325 }
326
327 format = GetFormat( format );
328
329 // 0) deal with possible volume part first
330 wxString volume,
331 path;
332 SplitVolume(pathOrig, &volume, &path, format);
333 if ( !volume.empty() )
334 {
335 m_relative = false;
336
337 SetVolume(volume);
338 }
339
340 // 1) Determine if the path is relative or absolute.
341 wxChar leadingChar = path[0u];
342
343 switch (format)
344 {
345 case wxPATH_MAC:
346 m_relative = leadingChar == wxT(':');
347
348 // We then remove a leading ":". The reason is in our
349 // storage form for relative paths:
350 // ":dir:file.txt" actually means "./dir/file.txt" in
351 // DOS notation and should get stored as
352 // (relative) (dir) (file.txt)
353 // "::dir:file.txt" actually means "../dir/file.txt"
354 // stored as (relative) (..) (dir) (file.txt)
355 // This is important only for the Mac as an empty dir
356 // actually means <UP>, whereas under DOS, double
357 // slashes can be ignored: "\\\\" is the same as "\\".
358 if (m_relative)
359 path.erase( 0, 1 );
360 break;
361
362 case wxPATH_VMS:
363 // TODO: what is the relative path format here?
364 m_relative = false;
365 break;
366
367 default:
368 wxFAIL_MSG( _T("Unknown path format") );
369 // !! Fall through !!
370
371 case wxPATH_UNIX:
372 // the paths of the form "~" or "~username" are absolute
373 m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
374 break;
375
376 case wxPATH_DOS:
377 m_relative = !IsPathSeparator(leadingChar, format);
378 break;
379
380 }
381
382 // 2) Break up the path into its members. If the original path
383 // was just "/" or "\\", m_dirs will be empty. We know from
384 // the m_relative field, if this means "nothing" or "root dir".
385
386 wxStringTokenizer tn( path, GetPathSeparators(format) );
387
388 while ( tn.HasMoreTokens() )
389 {
390 wxString token = tn.GetNextToken();
391
392 // Remove empty token under DOS and Unix, interpret them
393 // as .. under Mac.
394 if (token.empty())
395 {
396 if (format == wxPATH_MAC)
397 m_dirs.Add( wxT("..") );
398 // else ignore
399 }
400 else
401 {
402 m_dirs.Add( token );
403 }
404 }
405}
406
407void wxFileName::Assign(const wxString& fullpath,
408 wxPathFormat format)
409{
410 wxString volume, path, name, ext;
411 SplitPath(fullpath, &volume, &path, &name, &ext, format);
412
413 Assign(volume, path, name, ext, format);
414}
415
416void wxFileName::Assign(const wxString& fullpathOrig,
417 const wxString& fullname,
418 wxPathFormat format)
419{
420 // always recognize fullpath as directory, even if it doesn't end with a
421 // slash
422 wxString fullpath = fullpathOrig;
423 if ( !wxEndsWithPathSeparator(fullpath) )
424 {
425 fullpath += GetPathSeparator(format);
426 }
427
428 wxString volume, path, name, ext;
429
430 // do some consistency checks in debug mode: the name should be really just
431 // the filename and the path should be really just a path
432#ifdef __WXDEBUG__
433 wxString pathDummy, nameDummy, extDummy;
434
435 SplitPath(fullname, &pathDummy, &name, &ext, format);
436
437 wxASSERT_MSG( pathDummy.empty(),
438 _T("the file name shouldn't contain the path") );
439
440 SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
441
442 wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
443 _T("the path shouldn't contain file name nor extension") );
444
445#else // !__WXDEBUG__
446 SplitPath(fullname, NULL /* no path */, &name, &ext, format);
447 SplitPath(fullpath, &volume, &path, NULL, NULL, format);
448#endif // __WXDEBUG__/!__WXDEBUG__
449
450 Assign(volume, path, name, ext, format);
451}
452
453void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
454{
455 Assign(dir, _T(""), format);
456}
457
458void wxFileName::Clear()
459{
460 m_dirs.Clear();
461
462 m_volume =
463 m_name =
464 m_ext = wxEmptyString;
465
466 // we don't have any absolute path for now
467 m_relative = true;
468}
469
470/* static */
471wxFileName wxFileName::FileName(const wxString& file, wxPathFormat format)
472{
473 return wxFileName(file, format);
474}
475
476/* static */
477wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
478{
479 wxFileName fn;
480 fn.AssignDir(dir, format);
481 return fn;
482}
483
484// ----------------------------------------------------------------------------
485// existence tests
486// ----------------------------------------------------------------------------
487
488bool wxFileName::FileExists() const
489{
490 return wxFileName::FileExists( GetFullPath() );
491}
492
493bool wxFileName::FileExists( const wxString &file )
494{
495 return ::wxFileExists( file );
496}
497
498bool wxFileName::DirExists() const
499{
500 return wxFileName::DirExists( GetFullPath() );
501}
502
503bool wxFileName::DirExists( const wxString &dir )
504{
505 return ::wxDirExists( dir );
506}
507
508// ----------------------------------------------------------------------------
509// CWD and HOME stuff
510// ----------------------------------------------------------------------------
511
512void wxFileName::AssignCwd(const wxString& volume)
513{
514 AssignDir(wxFileName::GetCwd(volume));
515}
516
517/* static */
518wxString wxFileName::GetCwd(const wxString& volume)
519{
520 // if we have the volume, we must get the current directory on this drive
521 // and to do this we have to chdir to this volume - at least under Windows,
522 // I don't know how to get the current drive on another volume elsewhere
523 // (TODO)
524 wxString cwdOld;
525 if ( !volume.empty() )
526 {
527 cwdOld = wxGetCwd();
528 SetCwd(volume + GetVolumeSeparator());
529 }
530
531 wxString cwd = ::wxGetCwd();
532
533 if ( !volume.empty() )
534 {
535 SetCwd(cwdOld);
536 }
537
538 return cwd;
539}
540
541bool wxFileName::SetCwd()
542{
543 return wxFileName::SetCwd( GetFullPath() );
544}
545
546bool wxFileName::SetCwd( const wxString &cwd )
547{
548 return ::wxSetWorkingDirectory( cwd );
549}
550
551void wxFileName::AssignHomeDir()
552{
553 AssignDir(wxFileName::GetHomeDir());
554}
555
556wxString wxFileName::GetHomeDir()
557{
558 return ::wxGetHomeDir();
559}
560
561void wxFileName::AssignTempFileName(const wxString& prefix, wxFile *fileTemp)
562{
563 wxString tempname = CreateTempFileName(prefix, fileTemp);
564 if ( tempname.empty() )
565 {
566 // error, failed to get temp file name
567 Clear();
568 }
569 else // ok
570 {
571 Assign(tempname);
572 }
573}
574
575/* static */
576wxString
577wxFileName::CreateTempFileName(const wxString& prefix, wxFile *fileTemp)
578{
579 wxString path, dir, name;
580
581 // use the directory specified by the prefix
582 SplitPath(prefix, &dir, &name, NULL /* extension */);
583
584#if defined(__WXWINCE__)
585 if (dir.empty())
586 {
587 // FIXME. Create \temp dir?
588 dir = wxT("\\");
589 }
590 path = dir + wxT("\\") + prefix;
591 int i = 1;
592 while (wxFileExists(path))
593 {
594 path = dir + wxT("\\") + prefix ;
595 path << i;
596 i ++;
597 }
598
599#elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
600
601 if ( dir.empty() )
602 {
603 if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
604 {
605 wxLogLastError(_T("GetTempPath"));
606 }
607
608 if ( dir.empty() )
609 {
610 // GetTempFileName() fails if we pass it an empty string
611 dir = _T('.');
612 }
613 }
614 else // we have a dir to create the file in
615 {
616 // ensure we use only the back slashes as GetTempFileName(), unlike all
617 // the other APIs, is picky and doesn't accept the forward ones
618 dir.Replace(_T("/"), _T("\\"));
619 }
620
621 if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
622 {
623 wxLogLastError(_T("GetTempFileName"));
624
625 path.clear();
626 }
627
628#else // !Windows
629 if ( dir.empty() )
630 {
631#if defined(__WXMAC__) && !defined(__DARWIN__)
632 dir = wxMacFindFolder( (short) kOnSystemDisk, kTemporaryFolderType, kCreateFolder ) ;
633#else // !Mac
634 dir = wxGetenv(_T("TMP"));
635 if ( dir.empty() )
636 {
637 dir = wxGetenv(_T("TEMP"));
638 }
639
640 if ( dir.empty() )
641 {
642 // default
643 #if defined(__DOS__) || defined(__OS2__)
644 dir = _T(".");
645 #else
646 dir = _T("/tmp");
647 #endif
648 }
649#endif // Mac/!Mac
650 }
651
652 path = dir;
653
654 if ( !wxEndsWithPathSeparator(dir) &&
655 (name.empty() || !wxIsPathSeparator(name[0u])) )
656 {
657 path += wxFILE_SEP_PATH;
658 }
659
660 path += name;
661
662#if defined(HAVE_MKSTEMP)
663 // scratch space for mkstemp()
664 path += _T("XXXXXX");
665
666 // we need to copy the path to the buffer in which mkstemp() can modify it
667 wxCharBuffer buf( wxConvFile.cWX2MB( path ) );
668
669 // cast is safe because the string length doesn't change
670 int fdTemp = mkstemp( (char*)(const char*) buf );
671 if ( fdTemp == -1 )
672 {
673 // this might be not necessary as mkstemp() on most systems should have
674 // already done it but it doesn't hurt neither...
675 path.clear();
676 }
677 else // mkstemp() succeeded
678 {
679 path = wxConvFile.cMB2WX( (const char*) buf );
680
681 // avoid leaking the fd
682 if ( fileTemp )
683 {
684 fileTemp->Attach(fdTemp);
685 }
686 else
687 {
688 close(fdTemp);
689 }
690 }
691#else // !HAVE_MKSTEMP
692
693#ifdef HAVE_MKTEMP
694 // same as above
695 path += _T("XXXXXX");
696
697 wxCharBuffer buf = wxConvFile.cWX2MB( path );
698 if ( !mktemp( (const char*) buf ) )
699 {
700 path.clear();
701 }
702 else
703 {
704 path = wxConvFile.cMB2WX( (const char*) buf );
705 }
706#else // !HAVE_MKTEMP (includes __DOS__)
707 // generate the unique file name ourselves
708 #if !defined(__DOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
709 path << (unsigned int)getpid();
710 #endif
711
712 wxString pathTry;
713
714 static const size_t numTries = 1000;
715 for ( size_t n = 0; n < numTries; n++ )
716 {
717 // 3 hex digits is enough for numTries == 1000 < 4096
718 pathTry = path + wxString::Format(_T("%.03x"), (unsigned int) n);
719 if ( !wxFile::Exists(pathTry) )
720 {
721 break;
722 }
723
724 pathTry.clear();
725 }
726
727 path = pathTry;
728#endif // HAVE_MKTEMP/!HAVE_MKTEMP
729
730 if ( !path.empty() )
731 {
732 }
733#endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
734
735#endif // Windows/!Windows
736
737 if ( path.empty() )
738 {
739 wxLogSysError(_("Failed to create a temporary file name"));
740 }
741 else if ( fileTemp && !fileTemp->IsOpened() )
742 {
743 // open the file - of course, there is a race condition here, this is
744 // why we always prefer using mkstemp()...
745 //
746 // NB: GetTempFileName() under Windows creates the file, so using
747 // write_excl there would fail
748 if ( !fileTemp->Open(path,
749#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
750 wxFile::write,
751#else
752 wxFile::write_excl,
753#endif
754 wxS_IRUSR | wxS_IWUSR) )
755 {
756 // FIXME: If !ok here should we loop and try again with another
757 // file name? That is the standard recourse if open(O_EXCL)
758 // fails, though of course it should be protected against
759 // possible infinite looping too.
760
761 wxLogError(_("Failed to open temporary file."));
762
763 path.clear();
764 }
765 }
766
767 return path;
768}
769
770// ----------------------------------------------------------------------------
771// directory operations
772// ----------------------------------------------------------------------------
773
774bool wxFileName::Mkdir( int perm, int flags )
775{
776 return wxFileName::Mkdir( GetFullPath(), perm, flags );
777}
778
779bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
780{
781 if ( flags & wxPATH_MKDIR_FULL )
782 {
783 // split the path in components
784 wxFileName filename;
785 filename.AssignDir(dir);
786
787 wxString currPath;
788 if ( filename.HasVolume())
789 {
790 currPath << wxGetVolumeString(filename.GetVolume(), wxPATH_NATIVE);
791 }
792
793 wxArrayString dirs = filename.GetDirs();
794 size_t count = dirs.GetCount();
795 for ( size_t i = 0; i < count; i++ )
796 {
797 if ( i > 0 ||
798#if defined(__WXMAC__) && !defined(__DARWIN__)
799 // relative pathnames are exactely the other way round under mac...
800 !filename.IsAbsolute()
801#else
802 filename.IsAbsolute()
803#endif
804 )
805 currPath += wxFILE_SEP_PATH;
806 currPath += dirs[i];
807
808 if (!DirExists(currPath))
809 {
810 if (!wxMkdir(currPath, perm))
811 {
812 // no need to try creating further directories
813 return false;
814 }
815 }
816 }
817
818 return true;
819
820 }
821
822 return ::wxMkdir( dir, perm );
823}
824
825bool wxFileName::Rmdir()
826{
827 return wxFileName::Rmdir( GetFullPath() );
828}
829
830bool wxFileName::Rmdir( const wxString &dir )
831{
832 return ::wxRmdir( dir );
833}
834
835// ----------------------------------------------------------------------------
836// path normalization
837// ----------------------------------------------------------------------------
838
839bool wxFileName::Normalize(int flags,
840 const wxString& cwd,
841 wxPathFormat format)
842{
843 // deal with env vars renaming first as this may seriously change the path
844 if ( flags & wxPATH_NORM_ENV_VARS )
845 {
846 wxString pathOrig = GetFullPath(format);
847 wxString path = wxExpandEnvVars(pathOrig);
848 if ( path != pathOrig )
849 {
850 Assign(path);
851 }
852 }
853
854
855 // the existing path components
856 wxArrayString dirs = GetDirs();
857
858 // the path to prepend in front to make the path absolute
859 wxFileName curDir;
860
861 format = GetFormat(format);
862
863 // make the path absolute
864 if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute(format) )
865 {
866 if ( cwd.empty() )
867 {
868 curDir.AssignCwd(GetVolume());
869 }
870 else // cwd provided
871 {
872 curDir.AssignDir(cwd);
873 }
874
875 // the path may be not absolute because it doesn't have the volume name
876 // but in this case we shouldn't modify the directory components of it
877 // but just set the current volume
878 if ( !HasVolume() && curDir.HasVolume() )
879 {
880 SetVolume(curDir.GetVolume());
881
882 if ( !m_relative )
883 {
884 // yes, it was the case - we don't need curDir then
885 curDir.Clear();
886 }
887 }
888 }
889
890 // handle ~ stuff under Unix only
891 if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
892 {
893 if ( !dirs.IsEmpty() )
894 {
895 wxString dir = dirs[0u];
896 if ( !dir.empty() && dir[0u] == _T('~') )
897 {
898 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
899
900 dirs.RemoveAt(0u);
901 }
902 }
903 }
904
905 // transform relative path into abs one
906 if ( curDir.IsOk() )
907 {
908 wxArrayString dirsNew = curDir.GetDirs();
909 size_t count = dirs.GetCount();
910 for ( size_t n = 0; n < count; n++ )
911 {
912 dirsNew.Add(dirs[n]);
913 }
914
915 dirs = dirsNew;
916 }
917
918 // now deal with ".", ".." and the rest
919 m_dirs.Empty();
920 size_t count = dirs.GetCount();
921 for ( size_t n = 0; n < count; n++ )
922 {
923 wxString dir = dirs[n];
924
925 if ( flags & wxPATH_NORM_DOTS )
926 {
927 if ( dir == wxT(".") )
928 {
929 // just ignore
930 continue;
931 }
932
933 if ( dir == wxT("..") )
934 {
935 if ( m_dirs.IsEmpty() )
936 {
937 wxLogError(_("The path '%s' contains too many \"..\"!"),
938 GetFullPath().c_str());
939 return false;
940 }
941
942 m_dirs.RemoveAt(m_dirs.GetCount() - 1);
943 continue;
944 }
945 }
946
947 if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
948 {
949 dir.MakeLower();
950 }
951
952 m_dirs.Add(dir);
953 }
954
955#if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
956 if ( (flags & wxPATH_NORM_SHORTCUT) )
957 {
958 wxString filename;
959 if (GetShortcutTarget(GetFullPath(format), filename))
960 {
961 // Repeat this since we may now have a new path
962 if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
963 {
964 filename.MakeLower();
965 }
966 m_relative = false;
967 Assign(filename);
968 }
969 }
970#endif
971
972 if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
973 {
974 // VZ: expand env vars here too?
975
976 m_volume.MakeLower();
977 m_name.MakeLower();
978 m_ext.MakeLower();
979 }
980
981 // we do have the path now
982 //
983 // NB: need to do this before (maybe) calling Assign() below
984 m_relative = false;
985
986#if defined(__WIN32__)
987 if ( (flags & wxPATH_NORM_LONG) && (format == wxPATH_DOS) )
988 {
989 Assign(GetLongPath());
990 }
991#endif // Win32
992
993 return true;
994}
995
996// ----------------------------------------------------------------------------
997// get the shortcut target
998// ----------------------------------------------------------------------------
999
1000// WinCE (3) doesn't have CLSID_ShellLink, IID_IShellLink definitions.
1001// The .lnk file is a plain text file so it should be easy to
1002// make it work. Hint from Google Groups:
1003// "If you open up a lnk file, you'll see a
1004// number, followed by a pound sign (#), followed by more text. The
1005// number is the number of characters that follows the pound sign. The
1006// characters after the pound sign are the command line (which _can_
1007// include arguments) to be executed. Any path (e.g. \windows\program
1008// files\myapp.exe) that includes spaces needs to be enclosed in
1009// quotation marks."
1010
1011#if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
1012// The following lines are necessary under WinCE
1013// #include "wx/msw/private.h"
1014// #include <ole2.h>
1015#include <shlobj.h>
1016#if defined(__WXWINCE__)
1017#include <shlguid.h>
1018#endif
1019
1020bool wxFileName::GetShortcutTarget(const wxString& shortcutPath, wxString& targetFilename, wxString* arguments)
1021{
1022 wxString path, file, ext;
1023 wxSplitPath(shortcutPath, & path, & file, & ext);
1024
1025 HRESULT hres;
1026 IShellLink* psl;
1027 bool success = FALSE;
1028
1029 // Assume it's not a shortcut if it doesn't end with lnk
1030 if (ext.Lower() != wxT("lnk"))
1031 return FALSE;
1032
1033 // create a ShellLink object
1034 hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
1035 IID_IShellLink, (LPVOID*) &psl);
1036
1037 if (SUCCEEDED(hres))
1038 {
1039 IPersistFile* ppf;
1040 hres = psl->QueryInterface( IID_IPersistFile, (LPVOID *) &ppf);
1041 if (SUCCEEDED(hres))
1042 {
1043 WCHAR wsz[MAX_PATH];
1044
1045 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, shortcutPath.mb_str(), -1, wsz,
1046 MAX_PATH);
1047
1048 hres = ppf->Load(wsz, 0);
1049 if (SUCCEEDED(hres))
1050 {
1051 wxChar buf[2048];
1052 psl->GetPath(buf, 2048, NULL, SLGP_UNCPRIORITY);
1053 targetFilename = wxString(buf);
1054 success = (shortcutPath != targetFilename);
1055
1056 psl->GetArguments(buf, 2048);
1057 wxString args(buf);
1058 if (!args.IsEmpty() && arguments)
1059 {
1060 *arguments = args;
1061 }
1062 }
1063 }
1064 }
1065 psl->Release();
1066 return success;
1067}
1068#endif
1069
1070
1071// ----------------------------------------------------------------------------
1072// absolute/relative paths
1073// ----------------------------------------------------------------------------
1074
1075bool wxFileName::IsAbsolute(wxPathFormat format) const
1076{
1077 // if our path doesn't start with a path separator, it's not an absolute
1078 // path
1079 if ( m_relative )
1080 return false;
1081
1082 if ( !GetVolumeSeparator(format).empty() )
1083 {
1084 // this format has volumes and an absolute path must have one, it's not
1085 // enough to have the full path to bean absolute file under Windows
1086 if ( GetVolume().empty() )
1087 return false;
1088 }
1089
1090 return true;
1091}
1092
1093bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
1094{
1095 wxFileName fnBase = wxFileName::DirName(pathBase, format);
1096
1097 // get cwd only once - small time saving
1098 wxString cwd = wxGetCwd();
1099 Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1100 fnBase.Normalize(wxPATH_NORM_ALL & ~wxPATH_NORM_CASE, cwd, format);
1101
1102 bool withCase = IsCaseSensitive(format);
1103
1104 // we can't do anything if the files live on different volumes
1105 if ( !GetVolume().IsSameAs(fnBase.GetVolume(), withCase) )
1106 {
1107 // nothing done
1108 return false;
1109 }
1110
1111 // same drive, so we don't need our volume
1112 m_volume.clear();
1113
1114 // remove common directories starting at the top
1115 while ( !m_dirs.IsEmpty() && !fnBase.m_dirs.IsEmpty() &&
1116 m_dirs[0u].IsSameAs(fnBase.m_dirs[0u], withCase) )
1117 {
1118 m_dirs.RemoveAt(0);
1119 fnBase.m_dirs.RemoveAt(0);
1120 }
1121
1122 // add as many ".." as needed
1123 size_t count = fnBase.m_dirs.GetCount();
1124 for ( size_t i = 0; i < count; i++ )
1125 {
1126 m_dirs.Insert(wxT(".."), 0u);
1127 }
1128
1129 if ( format == wxPATH_UNIX || format == wxPATH_DOS )
1130 {
1131 // a directory made relative with respect to itself is '.' under Unix
1132 // and DOS, by definition (but we don't have to insert "./" for the
1133 // files)
1134 if ( m_dirs.IsEmpty() && IsDir() )
1135 {
1136 m_dirs.Add(_T('.'));
1137 }
1138 }
1139
1140 m_relative = true;
1141
1142 // we were modified
1143 return true;
1144}
1145
1146// ----------------------------------------------------------------------------
1147// filename kind tests
1148// ----------------------------------------------------------------------------
1149
1150bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
1151{
1152 wxFileName fn1 = *this,
1153 fn2 = filepath;
1154
1155 // get cwd only once - small time saving
1156 wxString cwd = wxGetCwd();
1157 fn1.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1158 fn2.Normalize(wxPATH_NORM_ALL | wxPATH_NORM_CASE, cwd, format);
1159
1160 if ( fn1.GetFullPath() == fn2.GetFullPath() )
1161 return true;
1162
1163 // TODO: compare inodes for Unix, this works even when filenames are
1164 // different but files are the same (symlinks) (VZ)
1165
1166 return false;
1167}
1168
1169/* static */
1170bool wxFileName::IsCaseSensitive( wxPathFormat format )
1171{
1172 // only Unix filenames are truely case-sensitive
1173 return GetFormat(format) == wxPATH_UNIX;
1174}
1175
1176/* static */
1177wxString wxFileName::GetForbiddenChars(wxPathFormat format)
1178{
1179 // Inits to forbidden characters that are common to (almost) all platforms.
1180 wxString strForbiddenChars = wxT("*?");
1181
1182 // If asserts, wxPathFormat has been changed. In case of a new path format
1183 // addition, the following code might have to be updated.
1184 wxCOMPILE_TIME_ASSERT(wxPATH_MAX == 5, wxPathFormatChanged);
1185 switch ( GetFormat(format) )
1186 {
1187 default :
1188 wxFAIL_MSG( wxT("Unknown path format") );
1189 // !! Fall through !!
1190
1191 case wxPATH_UNIX:
1192 break;
1193
1194 case wxPATH_MAC:
1195 // On a Mac even names with * and ? are allowed (Tested with OS
1196 // 9.2.1 and OS X 10.2.5)
1197 strForbiddenChars = wxEmptyString;
1198 break;
1199
1200 case wxPATH_DOS:
1201 strForbiddenChars += wxT("\\/:\"<>|");
1202 break;
1203
1204 case wxPATH_VMS:
1205 break;
1206 }
1207
1208 return strForbiddenChars;
1209}
1210
1211/* static */
1212wxString wxFileName::GetVolumeSeparator(wxPathFormat format)
1213{
1214 wxString sepVol;
1215
1216 if ( (GetFormat(format) == wxPATH_DOS) ||
1217 (GetFormat(format) == wxPATH_VMS) )
1218 {
1219 sepVol = wxFILE_SEP_DSK;
1220 }
1221 //else: leave empty
1222
1223 return sepVol;
1224}
1225
1226/* static */
1227wxString wxFileName::GetPathSeparators(wxPathFormat format)
1228{
1229 wxString seps;
1230 switch ( GetFormat(format) )
1231 {
1232 case wxPATH_DOS:
1233 // accept both as native APIs do but put the native one first as
1234 // this is the one we use in GetFullPath()
1235 seps << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_UNIX;
1236 break;
1237
1238 default:
1239 wxFAIL_MSG( _T("Unknown wxPATH_XXX style") );
1240 // fall through
1241
1242 case wxPATH_UNIX:
1243 seps = wxFILE_SEP_PATH_UNIX;
1244 break;
1245
1246 case wxPATH_MAC:
1247 seps = wxFILE_SEP_PATH_MAC;
1248 break;
1249
1250 case wxPATH_VMS:
1251 seps = wxFILE_SEP_PATH_VMS;
1252 break;
1253 }
1254
1255 return seps;
1256}
1257
1258/* static */
1259wxString wxFileName::GetPathTerminators(wxPathFormat format)
1260{
1261 format = GetFormat(format);
1262
1263 // under VMS the end of the path is ']', not the path separator used to
1264 // separate the components
1265 return format == wxPATH_VMS ? wxString(_T(']')) : GetPathSeparators(format);
1266}
1267
1268/* static */
1269bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
1270{
1271 // wxString::Find() doesn't work as expected with NUL - it will always find
1272 // it, so it is almost surely a bug if this function is called with NUL arg
1273 wxASSERT_MSG( ch != _T('\0'), _T("shouldn't be called with NUL") );
1274
1275 return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
1276}
1277
1278// ----------------------------------------------------------------------------
1279// path components manipulation
1280// ----------------------------------------------------------------------------
1281
1282/* static */ bool wxFileName::IsValidDirComponent(const wxString& dir)
1283{
1284 if ( dir.empty() )
1285 {
1286 wxFAIL_MSG( _T("empty directory passed to wxFileName::InsertDir()") );
1287
1288 return false;
1289 }
1290
1291 const size_t len = dir.length();
1292 for ( size_t n = 0; n < len; n++ )
1293 {
1294 if ( dir[n] == GetVolumeSeparator() || IsPathSeparator(dir[n]) )
1295 {
1296 wxFAIL_MSG( _T("invalid directory component in wxFileName") );
1297
1298 return false;
1299 }
1300 }
1301
1302 return true;
1303}
1304
1305void wxFileName::AppendDir( const wxString &dir )
1306{
1307 if ( IsValidDirComponent(dir) )
1308 m_dirs.Add( dir );
1309}
1310
1311void wxFileName::PrependDir( const wxString &dir )
1312{
1313 InsertDir(0, dir);
1314}
1315
1316void wxFileName::InsertDir( int before, const wxString &dir )
1317{
1318 if ( IsValidDirComponent(dir) )
1319 m_dirs.Insert( dir, before );
1320}
1321
1322void wxFileName::RemoveDir( int pos )
1323{
1324 m_dirs.RemoveAt( (size_t)pos );
1325}
1326
1327// ----------------------------------------------------------------------------
1328// accessors
1329// ----------------------------------------------------------------------------
1330
1331void wxFileName::SetFullName(const wxString& fullname)
1332{
1333 SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
1334}
1335
1336wxString wxFileName::GetFullName() const
1337{
1338 wxString fullname = m_name;
1339 if ( !m_ext.empty() )
1340 {
1341 fullname << wxFILE_SEP_EXT << m_ext;
1342 }
1343
1344 return fullname;
1345}
1346
1347wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
1348{
1349 format = GetFormat( format );
1350
1351 wxString fullpath;
1352
1353 // return the volume with the path as well if requested
1354 if ( flags & wxPATH_GET_VOLUME )
1355 {
1356 fullpath += wxGetVolumeString(GetVolume(), format);
1357 }
1358
1359 // the leading character
1360 switch ( format )
1361 {
1362 case wxPATH_MAC:
1363 if ( m_relative )
1364 fullpath += wxFILE_SEP_PATH_MAC;
1365 break;
1366
1367 case wxPATH_DOS:
1368 if ( !m_relative )
1369 fullpath += wxFILE_SEP_PATH_DOS;
1370 break;
1371
1372 default:
1373 wxFAIL_MSG( wxT("Unknown path format") );
1374 // fall through
1375
1376 case wxPATH_UNIX:
1377 if ( !m_relative )
1378 {
1379 // normally the absolute file names start with a slash
1380 // with one exception: the ones like "~/foo.bar" don't
1381 // have it
1382 if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
1383 {
1384 fullpath += wxFILE_SEP_PATH_UNIX;
1385 }
1386 }
1387 break;
1388
1389 case wxPATH_VMS:
1390 // no leading character here but use this place to unset
1391 // wxPATH_GET_SEPARATOR flag: under VMS it doesn't make sense
1392 // as, if I understand correctly, there should never be a dot
1393 // before the closing bracket
1394 flags &= ~wxPATH_GET_SEPARATOR;
1395 }
1396
1397 if ( m_dirs.empty() )
1398 {
1399 // there is nothing more
1400 return fullpath;
1401 }
1402
1403 // then concatenate all the path components using the path separator
1404 if ( format == wxPATH_VMS )
1405 {
1406 fullpath += wxT('[');
1407 }
1408
1409 const size_t dirCount = m_dirs.GetCount();
1410 for ( size_t i = 0; i < dirCount; i++ )
1411 {
1412 switch (format)
1413 {
1414 case wxPATH_MAC:
1415 if ( m_dirs[i] == wxT(".") )
1416 {
1417 // skip appending ':', this shouldn't be done in this
1418 // case as "::" is interpreted as ".." under Unix
1419 continue;
1420 }
1421
1422 // convert back from ".." to nothing
1423 if ( m_dirs[i] != wxT("..") )
1424 fullpath += m_dirs[i];
1425 break;
1426
1427 default:
1428 wxFAIL_MSG( wxT("Unexpected path format") );
1429 // still fall through
1430
1431 case wxPATH_DOS:
1432 case wxPATH_UNIX:
1433 fullpath += m_dirs[i];
1434 break;
1435
1436 case wxPATH_VMS:
1437 // TODO: What to do with ".." under VMS
1438
1439 // convert back from ".." to nothing
1440 if ( m_dirs[i] != wxT("..") )
1441 fullpath += m_dirs[i];
1442 break;
1443 }
1444
1445 if ( (flags & wxPATH_GET_SEPARATOR) || (i != dirCount - 1) )
1446 fullpath += GetPathSeparator(format);
1447 }
1448
1449 if ( format == wxPATH_VMS )
1450 {
1451 fullpath += wxT(']');
1452 }
1453
1454 return fullpath;
1455}
1456
1457wxString wxFileName::GetFullPath( wxPathFormat format ) const
1458{
1459 // we already have a function to get the path
1460 wxString fullpath = GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR,
1461 format);
1462
1463 // now just add the file name and extension to it
1464 fullpath += GetFullName();
1465
1466 return fullpath;
1467}
1468
1469// Return the short form of the path (returns identity on non-Windows platforms)
1470wxString wxFileName::GetShortPath() const
1471{
1472#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
1473 wxString path(GetFullPath());
1474 wxString pathOut;
1475 DWORD sz = ::GetShortPathName(path, NULL, 0);
1476 bool ok = sz != 0;
1477 if ( ok )
1478 {
1479 ok = ::GetShortPathName
1480 (
1481 path,
1482 wxStringBuffer(pathOut, sz),
1483 sz
1484 ) != 0;
1485 }
1486 if (ok)
1487 return pathOut;
1488
1489 return path;
1490#else
1491 return GetFullPath();
1492#endif
1493}
1494
1495// Return the long form of the path (returns identity on non-Windows platforms)
1496wxString wxFileName::GetLongPath() const
1497{
1498 wxString pathOut,
1499 path = GetFullPath();
1500
1501#if defined(__WIN32__) && !defined(__WXMICROWIN__)
1502 bool success = false;
1503
1504#if wxUSE_DYNAMIC_LOADER
1505 typedef DWORD (WINAPI *GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
1506
1507 static bool s_triedToLoad = false;
1508
1509 if ( !s_triedToLoad )
1510 {
1511 // suppress the errors about missing GetLongPathName[AW]
1512 wxLogNull noLog;
1513
1514 s_triedToLoad = true;
1515 wxDynamicLibrary dllKernel(_T("kernel32"));
1516 if ( dllKernel.IsLoaded() )
1517 {
1518 // may succeed or fail depending on the Windows version
1519 static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
1520#ifdef _UNICODE
1521 s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameW"));
1522#else
1523 s_pfnGetLongPathName = (GET_LONG_PATH_NAME) dllKernel.GetSymbol(_T("GetLongPathNameA"));
1524#endif
1525
1526 if ( s_pfnGetLongPathName )
1527 {
1528 DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
1529 bool ok = dwSize > 0;
1530
1531 if ( ok )
1532 {
1533 DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
1534 ok = sz != 0;
1535 if ( ok )
1536 {
1537 ok = (*s_pfnGetLongPathName)
1538 (
1539 path,
1540 wxStringBuffer(pathOut, sz),
1541 sz
1542 ) != 0;
1543 success = true;
1544 }
1545 }
1546 }
1547 }
1548 }
1549
1550 if (success)
1551 return pathOut;
1552#endif // wxUSE_DYNAMIC_LOADER
1553
1554 if (!success)
1555 {
1556 // The OS didn't support GetLongPathName, or some other error.
1557 // We need to call FindFirstFile on each component in turn.
1558
1559 WIN32_FIND_DATA findFileData;
1560 HANDLE hFind;
1561
1562 if ( HasVolume() )
1563 pathOut = GetVolume() +
1564 GetVolumeSeparator(wxPATH_DOS) +
1565 GetPathSeparator(wxPATH_DOS);
1566 else
1567 pathOut = wxEmptyString;
1568
1569 wxArrayString dirs = GetDirs();
1570 dirs.Add(GetFullName());
1571
1572 wxString tmpPath;
1573
1574 size_t count = dirs.GetCount();
1575 for ( size_t i = 0; i < count; i++ )
1576 {
1577 // We're using pathOut to collect the long-name path, but using a
1578 // temporary for appending the last path component which may be
1579 // short-name
1580 tmpPath = pathOut + dirs[i];
1581
1582 if ( tmpPath.empty() )
1583 continue;
1584
1585 // can't see this being necessary? MF
1586 if ( tmpPath.Last() == GetVolumeSeparator(wxPATH_DOS) )
1587 {
1588 // Can't pass a drive and root dir to FindFirstFile,
1589 // so continue to next dir
1590 tmpPath += wxFILE_SEP_PATH;
1591 pathOut = tmpPath;
1592 continue;
1593 }
1594
1595 hFind = ::FindFirstFile(tmpPath, &findFileData);
1596 if (hFind == INVALID_HANDLE_VALUE)
1597 {
1598 // Error: most likely reason is that path doesn't exist, so
1599 // append any unprocessed parts and return
1600 for ( i += 1; i < count; i++ )
1601 tmpPath += wxFILE_SEP_PATH + dirs[i];
1602
1603 return tmpPath;
1604 }
1605
1606 pathOut += findFileData.cFileName;
1607 if ( (i < (count-1)) )
1608 pathOut += wxFILE_SEP_PATH;
1609
1610 ::FindClose(hFind);
1611 }
1612 }
1613#else // !Win32
1614 pathOut = path;
1615#endif // Win32/!Win32
1616
1617 return pathOut;
1618}
1619
1620wxPathFormat wxFileName::GetFormat( wxPathFormat format )
1621{
1622 if (format == wxPATH_NATIVE)
1623 {
1624#if defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__)
1625 format = wxPATH_DOS;
1626#elif defined(__WXMAC__) && !defined(__DARWIN__)
1627 format = wxPATH_MAC;
1628#elif defined(__VMS)
1629 format = wxPATH_VMS;
1630#else
1631 format = wxPATH_UNIX;
1632#endif
1633 }
1634 return format;
1635}
1636
1637// ----------------------------------------------------------------------------
1638// path splitting function
1639// ----------------------------------------------------------------------------
1640
1641/* static */
1642void
1643wxFileName::SplitVolume(const wxString& fullpathWithVolume,
1644 wxString *pstrVolume,
1645 wxString *pstrPath,
1646 wxPathFormat format)
1647{
1648 format = GetFormat(format);
1649
1650 wxString fullpath = fullpathWithVolume;
1651
1652 // special Windows UNC paths hack: transform \\share\path into share:path
1653 if ( format == wxPATH_DOS )
1654 {
1655 if ( fullpath.length() >= 4 &&
1656 fullpath[0u] == wxFILE_SEP_PATH_DOS &&
1657 fullpath[1u] == wxFILE_SEP_PATH_DOS )
1658 {
1659 fullpath.erase(0, 2);
1660
1661 size_t posFirstSlash =
1662 fullpath.find_first_of(GetPathTerminators(format));
1663 if ( posFirstSlash != wxString::npos )
1664 {
1665 fullpath[posFirstSlash] = wxFILE_SEP_DSK;
1666
1667 // UNC paths are always absolute, right? (FIXME)
1668 fullpath.insert(posFirstSlash + 1, 1, wxFILE_SEP_PATH_DOS);
1669 }
1670 }
1671 }
1672
1673 // We separate the volume here
1674 if ( format == wxPATH_DOS || format == wxPATH_VMS )
1675 {
1676 wxString sepVol = GetVolumeSeparator(format);
1677
1678 size_t posFirstColon = fullpath.find_first_of(sepVol);
1679 if ( posFirstColon != wxString::npos )
1680 {
1681 if ( pstrVolume )
1682 {
1683 *pstrVolume = fullpath.Left(posFirstColon);
1684 }
1685
1686 // remove the volume name and the separator from the full path
1687 fullpath.erase(0, posFirstColon + sepVol.length());
1688 }
1689 }
1690
1691 if ( pstrPath )
1692 *pstrPath = fullpath;
1693}
1694
1695/* static */
1696void wxFileName::SplitPath(const wxString& fullpathWithVolume,
1697 wxString *pstrVolume,
1698 wxString *pstrPath,
1699 wxString *pstrName,
1700 wxString *pstrExt,
1701 wxPathFormat format)
1702{
1703 format = GetFormat(format);
1704
1705 wxString fullpath;
1706 SplitVolume(fullpathWithVolume, pstrVolume, &fullpath, format);
1707
1708 // find the positions of the last dot and last path separator in the path
1709 size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
1710 size_t posLastSlash = fullpath.find_last_of(GetPathTerminators(format));
1711
1712 // check whether this dot occurs at the very beginning of a path component
1713 if ( (posLastDot != wxString::npos) &&
1714 (posLastDot == 0 ||
1715 IsPathSeparator(fullpath[posLastDot - 1]) ||
1716 (format == wxPATH_VMS && fullpath[posLastDot - 1] == _T(']'))) )
1717 {
1718 // dot may be (and commonly -- at least under Unix -- is) the first
1719 // character of the filename, don't treat the entire filename as
1720 // extension in this case
1721 posLastDot = wxString::npos;
1722 }
1723
1724 // if we do have a dot and a slash, check that the dot is in the name part
1725 if ( (posLastDot != wxString::npos) &&
1726 (posLastSlash != wxString::npos) &&
1727 (posLastDot < posLastSlash) )
1728 {
1729 // the dot is part of the path, not the start of the extension
1730 posLastDot = wxString::npos;
1731 }
1732
1733 // now fill in the variables provided by user
1734 if ( pstrPath )
1735 {
1736 if ( posLastSlash == wxString::npos )
1737 {
1738 // no path at all
1739 pstrPath->Empty();
1740 }
1741 else
1742 {
1743 // take everything up to the path separator but take care to make
1744 // the path equal to something like '/', not empty, for the files
1745 // immediately under root directory
1746 size_t len = posLastSlash;
1747
1748 // this rule does not apply to mac since we do not start with colons (sep)
1749 // except for relative paths
1750 if ( !len && format != wxPATH_MAC)
1751 len++;
1752
1753 *pstrPath = fullpath.Left(len);
1754
1755 // special VMS hack: remove the initial bracket
1756 if ( format == wxPATH_VMS )
1757 {
1758 if ( (*pstrPath)[0u] == _T('[') )
1759 pstrPath->erase(0, 1);
1760 }
1761 }
1762 }
1763
1764 if ( pstrName )
1765 {
1766 // take all characters starting from the one after the last slash and
1767 // up to, but excluding, the last dot
1768 size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
1769 size_t count;
1770 if ( posLastDot == wxString::npos )
1771 {
1772 // take all until the end
1773 count = wxString::npos;
1774 }
1775 else if ( posLastSlash == wxString::npos )
1776 {
1777 count = posLastDot;
1778 }
1779 else // have both dot and slash
1780 {
1781 count = posLastDot - posLastSlash - 1;
1782 }
1783
1784 *pstrName = fullpath.Mid(nStart, count);
1785 }
1786
1787 if ( pstrExt )
1788 {
1789 if ( posLastDot == wxString::npos )
1790 {
1791 // no extension
1792 pstrExt->Empty();
1793 }
1794 else
1795 {
1796 // take everything after the dot
1797 *pstrExt = fullpath.Mid(posLastDot + 1);
1798 }
1799 }
1800}
1801
1802/* static */
1803void wxFileName::SplitPath(const wxString& fullpath,
1804 wxString *path,
1805 wxString *name,
1806 wxString *ext,
1807 wxPathFormat format)
1808{
1809 wxString volume;
1810 SplitPath(fullpath, &volume, path, name, ext, format);
1811
1812 if ( path )
1813 {
1814 path->Prepend(wxGetVolumeString(volume, format));
1815 }
1816}
1817
1818// ----------------------------------------------------------------------------
1819// time functions
1820// ----------------------------------------------------------------------------
1821
1822#if wxUSE_DATETIME
1823
1824bool wxFileName::SetTimes(const wxDateTime *dtAccess,
1825 const wxDateTime *dtMod,
1826 const wxDateTime *dtCreate)
1827{
1828#if defined(__WIN32__)
1829 if ( IsDir() )
1830 {
1831 // VZ: please let me know how to do this if you can
1832 wxFAIL_MSG( _T("SetTimes() not implemented for the directories") );
1833 }
1834 else // file
1835 {
1836 wxFileHandle fh(GetFullPath(), wxFileHandle::Write);
1837 if ( fh.IsOk() )
1838 {
1839 FILETIME ftAccess, ftCreate, ftWrite;
1840
1841 if ( dtCreate )
1842 ConvertWxToFileTime(&ftCreate, *dtCreate);
1843 if ( dtAccess )
1844 ConvertWxToFileTime(&ftAccess, *dtAccess);
1845 if ( dtMod )
1846 ConvertWxToFileTime(&ftWrite, *dtMod);
1847
1848 if ( ::SetFileTime(fh,
1849 dtCreate ? &ftCreate : NULL,
1850 dtAccess ? &ftAccess : NULL,
1851 dtMod ? &ftWrite : NULL) )
1852 {
1853 return true;
1854 }
1855 }
1856 }
1857#elif defined(__UNIX_LIKE__) || (defined(__DOS__) && defined(__WATCOMC__))
1858 if ( !dtAccess && !dtMod )
1859 {
1860 // can't modify the creation time anyhow, don't try
1861 return true;
1862 }
1863
1864 // if dtAccess or dtMod is not specified, use the other one (which must be
1865 // non NULL because of the test above) for both times
1866 utimbuf utm;
1867 utm.actime = dtAccess ? dtAccess->GetTicks() : dtMod->GetTicks();
1868 utm.modtime = dtMod ? dtMod->GetTicks() : dtAccess->GetTicks();
1869 if ( utime(GetFullPath().fn_str(), &utm) == 0 )
1870 {
1871 return true;
1872 }
1873#else // other platform
1874#endif // platforms
1875
1876 wxLogSysError(_("Failed to modify file times for '%s'"),
1877 GetFullPath().c_str());
1878
1879 return false;
1880}
1881
1882bool wxFileName::Touch()
1883{
1884#if defined(__UNIX_LIKE__)
1885 // under Unix touching file is simple: just pass NULL to utime()
1886 if ( utime(GetFullPath().fn_str(), NULL) == 0 )
1887 {
1888 return true;
1889 }
1890
1891 wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
1892
1893 return false;
1894#else // other platform
1895 wxDateTime dtNow = wxDateTime::Now();
1896
1897 return SetTimes(&dtNow, &dtNow, NULL /* don't change create time */);
1898#endif // platforms
1899}
1900
1901bool wxFileName::GetTimes(wxDateTime *dtAccess,
1902 wxDateTime *dtMod,
1903 wxDateTime *dtCreate) const
1904{
1905#if defined(__WIN32__)
1906 // we must use different methods for the files and directories under
1907 // Windows as CreateFile(GENERIC_READ) doesn't work for the directories and
1908 // CreateFile(FILE_FLAG_BACKUP_SEMANTICS) works -- but only under NT and
1909 // not 9x
1910 bool ok;
1911 FILETIME ftAccess, ftCreate, ftWrite;
1912 if ( IsDir() )
1913 {
1914 // implemented in msw/dir.cpp
1915 extern bool wxGetDirectoryTimes(const wxString& dirname,
1916 FILETIME *, FILETIME *, FILETIME *);
1917
1918 // we should pass the path without the trailing separator to
1919 // wxGetDirectoryTimes()
1920 ok = wxGetDirectoryTimes(GetPath(wxPATH_GET_VOLUME),
1921 &ftAccess, &ftCreate, &ftWrite);
1922 }
1923 else // file
1924 {
1925 wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
1926 if ( fh.IsOk() )
1927 {
1928 ok = ::GetFileTime(fh,
1929 dtCreate ? &ftCreate : NULL,
1930 dtAccess ? &ftAccess : NULL,
1931 dtMod ? &ftWrite : NULL) != 0;
1932 }
1933 else
1934 {
1935 ok = false;
1936 }
1937 }
1938
1939 if ( ok )
1940 {
1941 if ( dtCreate )
1942 ConvertFileTimeToWx(dtCreate, ftCreate);
1943 if ( dtAccess )
1944 ConvertFileTimeToWx(dtAccess, ftAccess);
1945 if ( dtMod )
1946 ConvertFileTimeToWx(dtMod, ftWrite);
1947
1948 return true;
1949 }
1950#elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || (defined(__DOS__) && defined(__WATCOMC__))
1951 wxStructStat stBuf;
1952 if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
1953 {
1954 if ( dtAccess )
1955 dtAccess->Set(stBuf.st_atime);
1956 if ( dtMod )
1957 dtMod->Set(stBuf.st_mtime);
1958 if ( dtCreate )
1959 dtCreate->Set(stBuf.st_ctime);
1960
1961 return true;
1962 }
1963#else // other platform
1964#endif // platforms
1965
1966 wxLogSysError(_("Failed to retrieve file times for '%s'"),
1967 GetFullPath().c_str());
1968
1969 return false;
1970}
1971
1972#endif // wxUSE_DATETIME
1973
1974#ifdef __WXMAC__
1975
1976const short kMacExtensionMaxLength = 16 ;
1977class MacDefaultExtensionRecord
1978{
1979public :
1980 MacDefaultExtensionRecord()
1981 {
1982 m_ext[0] = 0 ;
1983 m_type = m_creator = NULL ;
1984 }
1985 MacDefaultExtensionRecord( const MacDefaultExtensionRecord& from )
1986 {
1987 wxStrcpy( m_ext , from.m_ext ) ;
1988 m_type = from.m_type ;
1989 m_creator = from.m_creator ;
1990 }
1991 MacDefaultExtensionRecord( const wxChar * extension , OSType type , OSType creator )
1992 {
1993 wxStrncpy( m_ext , extension , kMacExtensionMaxLength ) ;
1994 m_ext[kMacExtensionMaxLength] = 0 ;
1995 m_type = type ;
1996 m_creator = creator ;
1997 }
1998 wxChar m_ext[kMacExtensionMaxLength] ;
1999 OSType m_type ;
2000 OSType m_creator ;
2001} ;
2002
2003#include "wx/dynarray.h"
2004WX_DECLARE_OBJARRAY(MacDefaultExtensionRecord, MacDefaultExtensionArray) ;
2005
2006bool gMacDefaultExtensionsInited = false ;
2007
2008#include "wx/arrimpl.cpp"
2009
2010WX_DEFINE_EXPORTED_OBJARRAY(MacDefaultExtensionArray) ;
2011
2012MacDefaultExtensionArray gMacDefaultExtensions ;
2013
2014// load the default extensions
2015MacDefaultExtensionRecord gDefaults[] =
2016{
2017 MacDefaultExtensionRecord( wxT("txt") , 'TEXT' , 'ttxt' ) ,
2018 MacDefaultExtensionRecord( wxT("tif") , 'TIFF' , '****' ) ,
2019 MacDefaultExtensionRecord( wxT("jpg") , 'JPEG' , '****' ) ,
2020} ;
2021
2022static void MacEnsureDefaultExtensionsLoaded()
2023{
2024 if ( !gMacDefaultExtensionsInited )
2025 {
2026 // we could load the pc exchange prefs here too
2027 for ( size_t i = 0 ; i < WXSIZEOF( gDefaults ) ; ++i )
2028 {
2029 gMacDefaultExtensions.Add( gDefaults[i] ) ;
2030 }
2031 gMacDefaultExtensionsInited = true ;
2032 }
2033}
2034bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
2035{
2036 FInfo fndrInfo ;
2037 FSSpec spec ;
2038 wxMacFilename2FSSpec(GetFullPath(),&spec) ;
2039 OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
2040 wxCHECK( err == noErr , false ) ;
2041
2042 fndrInfo.fdType = type ;
2043 fndrInfo.fdCreator = creator ;
2044 FSpSetFInfo( &spec , &fndrInfo ) ;
2045 return true ;
2046}
2047
2048bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
2049{
2050 FInfo fndrInfo ;
2051 FSSpec spec ;
2052 wxMacFilename2FSSpec(GetFullPath(),&spec) ;
2053 OSErr err = FSpGetFInfo( &spec , &fndrInfo ) ;
2054 wxCHECK( err == noErr , false ) ;
2055
2056 *type = fndrInfo.fdType ;
2057 *creator = fndrInfo.fdCreator ;
2058 return true ;
2059}
2060
2061bool wxFileName::MacSetDefaultTypeAndCreator()
2062{
2063 wxUint32 type , creator ;
2064 if ( wxFileName::MacFindDefaultTypeAndCreator(GetExt() , &type ,
2065 &creator ) )
2066 {
2067 return MacSetTypeAndCreator( type , creator ) ;
2068 }
2069 return false;
2070}
2071
2072bool wxFileName::MacFindDefaultTypeAndCreator( const wxString& ext , wxUint32 *type , wxUint32 *creator )
2073{
2074 MacEnsureDefaultExtensionsLoaded() ;
2075 wxString extl = ext.Lower() ;
2076 for( int i = gMacDefaultExtensions.Count() - 1 ; i >= 0 ; --i )
2077 {
2078 if ( gMacDefaultExtensions.Item(i).m_ext == extl )
2079 {
2080 *type = gMacDefaultExtensions.Item(i).m_type ;
2081 *creator = gMacDefaultExtensions.Item(i).m_creator ;
2082 return true ;
2083 }
2084 }
2085 return false ;
2086}
2087
2088void wxFileName::MacRegisterDefaultTypeAndCreator( const wxString& ext , wxUint32 type , wxUint32 creator )
2089{
2090 MacEnsureDefaultExtensionsLoaded() ;
2091 MacDefaultExtensionRecord rec ;
2092 rec.m_type = type ;
2093 rec.m_creator = creator ;
2094 wxStrncpy( rec.m_ext , ext.Lower().c_str() , kMacExtensionMaxLength ) ;
2095 gMacDefaultExtensions.Add( rec ) ;
2096}
2097#endif
wxWidgets (Impactor)