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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
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #include "wx/filefn.h"
28
29 #ifndef WX_PRECOMP
30 #include "wx/intl.h"
31 #include "wx/log.h"
32 #include "wx/utils.h"
33 #include "wx/crt.h"
34 #endif
35
36 #include "wx/dynarray.h"
37 #include "wx/file.h"
38 #include "wx/filename.h"
39 #include "wx/dir.h"
40
41 #include "wx/tokenzr.h"
42
43 // there are just too many of those...
44 #ifdef __VISUALC__
45 #pragma warning(disable:4706) // assignment within conditional expression
46 #endif // VC++
47
48 #include <ctype.h>
49 #include <stdio.h>
50 #include <stdlib.h>
51 #include <string.h>
52 #if !wxONLY_WATCOM_EARLIER_THAN(1,4)
53 #if !(defined(_MSC_VER) && (_MSC_VER > 800))
54 #include <errno.h>
55 #endif
56 #endif
57
58 #if defined(__WXMAC__)
59 #include "wx/osx/private.h" // includes mac headers
60 #endif
61
62 #ifdef __WINDOWS__
63 #include "wx/msw/private.h"
64 #include "wx/msw/mslu.h"
65
66 // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
67 //
68 // note that it must be included after <windows.h>
69 #ifdef __GNUWIN32__
70 #ifdef __CYGWIN__
71 #include <sys/cygwin.h>
72 #endif
73 #endif // __GNUWIN32__
74
75 // io.h is needed for _get_osfhandle()
76 // Already included by filefn.h for many Windows compilers
77 #if defined __MWERKS__ || defined __CYGWIN__
78 #include <io.h>
79 #endif
80 #endif // __WINDOWS__
81
82 #if defined(__VMS__)
83 #include <fab.h>
84 #endif
85
86 // TODO: Borland probably has _wgetcwd as well?
87 #ifdef _MSC_VER
88 #define HAVE_WGETCWD
89 #endif
90
91 // ----------------------------------------------------------------------------
92 // constants
93 // ----------------------------------------------------------------------------
94
95 #ifndef _MAXPATHLEN
96 #define _MAXPATHLEN 1024
97 #endif
98
99 #ifndef INVALID_FILE_ATTRIBUTES
100 #define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
101 #endif
102
103 // ----------------------------------------------------------------------------
104 // private globals
105 // ----------------------------------------------------------------------------
106
107 #if WXWIN_COMPATIBILITY_2_8
108 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
109 #endif
110
111 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
112 //
113 // VisualAge C++ V4.0 cannot have any external linkage const decs
114 // in headers included by more than one primary source
115 //
116 const int wxInvalidOffset = -1;
117 #endif
118
119 // ============================================================================
120 // implementation
121 // ============================================================================
122
123 // ----------------------------------------------------------------------------
124 // wrappers around standard POSIX functions
125 // ----------------------------------------------------------------------------
126
127 #if wxUSE_UNICODE && defined __BORLANDC__ \
128 && __BORLANDC__ >= 0x550 && __BORLANDC__ <= 0x551
129
130 // BCC 5.5 and 5.5.1 have a bug in _wopen where files are created read only
131 // regardless of the mode parameter. This hack works around the problem by
132 // setting the mode with _wchmod.
133 //
134 int wxCRT_Open(const wchar_t *pathname, int flags, mode_t mode)
135 {
136 int moreflags = 0;
137
138 // we only want to fix the mode when the file is actually created, so
139 // when creating first try doing it O_EXCL so we can tell if the file
140 // was already there.
141 if ((flags & O_CREAT) && !(flags & O_EXCL) && (mode & wxS_IWUSR) != 0)
142 moreflags = O_EXCL;
143
144 int fd = _wopen(pathname, flags | moreflags, mode);
145
146 // the file was actually created and needs fixing
147 if (fd != -1 && (flags & O_CREAT) != 0 && (mode & wxS_IWUSR) != 0)
148 {
149 close(fd);
150 _wchmod(pathname, mode);
151 fd = _wopen(pathname, flags & ~(O_EXCL | O_CREAT));
152 }
153 // the open failed, but it may have been because the added O_EXCL stopped
154 // the opening of an existing file, so try again without.
155 else if (fd == -1 && moreflags != 0)
156 {
157 fd = _wopen(pathname, flags & ~O_CREAT);
158 }
159
160 return fd;
161 }
162
163 #endif
164
165 // ----------------------------------------------------------------------------
166 // wxPathList
167 // ----------------------------------------------------------------------------
168
169 bool wxPathList::Add(const wxString& path)
170 {
171 // add a path separator to force wxFileName to interpret it always as a directory
172 // (i.e. if we are called with '/home/user' we want to consider it a folder and
173 // not, as wxFileName would consider, a filename).
174 wxFileName fn(path + wxFileName::GetPathSeparator());
175
176 // add only normalized relative/absolute paths
177 // NB: we won't do wxPATH_NORM_DOTS in order to avoid problems when trying to
178 // normalize paths which starts with ".." (which can be normalized only if
179 // we use also wxPATH_NORM_ABSOLUTE - which we don't want to use).
180 if (!fn.Normalize(wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS))
181 return false;
182
183 wxString toadd = fn.GetPath();
184 if (Index(toadd) == wxNOT_FOUND)
185 wxArrayString::Add(toadd); // do not add duplicates
186
187 return true;
188 }
189
190 void wxPathList::Add(const wxArrayString &arr)
191 {
192 for (size_t j=0; j < arr.GetCount(); j++)
193 Add(arr[j]);
194 }
195
196 // Add paths e.g. from the PATH environment variable
197 void wxPathList::AddEnvList (const wxString& WXUNUSED_IN_WINCE(envVariable))
198 {
199 // No environment variables on WinCE
200 #ifndef __WXWINCE__
201
202 // The space has been removed from the tokenizers, otherwise a
203 // path such as "C:\Program Files" would be split into 2 paths:
204 // "C:\Program" and "Files"; this is true for both Windows and Unix.
205
206 static const wxChar PATH_TOKS[] =
207 #if defined(__WINDOWS__) || defined(__OS2__)
208 wxT(";"); // Don't separate with colon in DOS (used for drive)
209 #else
210 wxT(":;");
211 #endif
212
213 wxString val;
214 if ( wxGetEnv(envVariable, &val) )
215 {
216 // split into an array of string the value of the env var
217 wxArrayString arr = wxStringTokenize(val, PATH_TOKS);
218 WX_APPEND_ARRAY(*this, arr);
219 }
220 #endif // !__WXWINCE__
221 }
222
223 // Given a full filename (with path), ensure that that file can
224 // be accessed again USING FILENAME ONLY by adding the path
225 // to the list if not already there.
226 bool wxPathList::EnsureFileAccessible (const wxString& path)
227 {
228 return Add(wxPathOnly(path));
229 }
230
231 #if WXWIN_COMPATIBILITY_2_6
232 bool wxPathList::Member (const wxString& path) const
233 {
234 return Index(path) != wxNOT_FOUND;
235 }
236 #endif
237
238 wxString wxPathList::FindValidPath (const wxString& file) const
239 {
240 // normalize the given string as it could be a path + a filename
241 // and not only a filename
242 wxFileName fn(file);
243 wxString strend;
244
245 // NB: normalize without making absolute otherwise calling this function with
246 // e.g. "b/c.txt" would result in removing the directory 'b' and the for loop
247 // below would only add to the paths of this list the 'c.txt' part when doing
248 // the existence checks...
249 // NB: we don't use wxPATH_NORM_DOTS here, too (see wxPathList::Add for more info)
250 if (!fn.Normalize(wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS))
251 return wxEmptyString;
252
253 wxASSERT_MSG(!fn.IsDir(), wxT("Cannot search for directories; only for files"));
254 if (fn.IsAbsolute())
255 strend = fn.GetFullName(); // search for the file name and ignore the path part
256 else
257 strend = fn.GetFullPath();
258
259 for (size_t i=0; i<GetCount(); i++)
260 {
261 wxString strstart = Item(i);
262 if (!strstart.IsEmpty() && strstart.Last() != wxFileName::GetPathSeparator())
263 strstart += wxFileName::GetPathSeparator();
264
265 if (wxFileExists(strstart + strend))
266 return strstart + strend; // Found!
267 }
268
269 return wxEmptyString; // Not found
270 }
271
272 wxString wxPathList::FindAbsoluteValidPath (const wxString& file) const
273 {
274 wxString f = FindValidPath(file);
275 if ( f.empty() || wxIsAbsolutePath(f) )
276 return f;
277
278 wxString buf = ::wxGetCwd();
279
280 if ( !wxEndsWithPathSeparator(buf) )
281 {
282 buf += wxFILE_SEP_PATH;
283 }
284 buf += f;
285
286 return buf;
287 }
288
289 // ----------------------------------------------------------------------------
290 // miscellaneous global functions
291 // ----------------------------------------------------------------------------
292
293 #if WXWIN_COMPATIBILITY_2_8
294 static inline wxChar* MYcopystring(const wxString& s)
295 {
296 wxChar* copy = new wxChar[s.length() + 1];
297 return wxStrcpy(copy, s.c_str());
298 }
299
300 template<typename CharType>
301 static inline CharType* MYcopystring(const CharType* s)
302 {
303 CharType* copy = new CharType[wxStrlen(s) + 1];
304 return wxStrcpy(copy, s);
305 }
306 #endif
307
308
309 bool
310 wxFileExists (const wxString& filename)
311 {
312 #if defined(__WXPALMOS__)
313 return false;
314 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
315 // we must use GetFileAttributes() instead of the ANSI C functions because
316 // it can cope with network (UNC) paths unlike them
317 DWORD ret = ::GetFileAttributes(filename.fn_str());
318
319 return (ret != INVALID_FILE_ATTRIBUTES) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
320 #else // !__WIN32__
321 #ifndef S_ISREG
322 #define S_ISREG(mode) ((mode) & S_IFREG)
323 #endif
324 wxStructStat st;
325 #ifndef wxNEED_WX_UNISTD_H
326 return (wxStat( filename.fn_str() , &st) == 0 && S_ISREG(st.st_mode))
327 #ifdef __OS2__
328 || (errno == EACCES) // if access is denied something with that name
329 // exists and is opened in exclusive mode.
330 #endif
331 ;
332 #else
333 return wxStat( filename , &st) == 0 && S_ISREG(st.st_mode);
334 #endif
335 #endif // __WIN32__/!__WIN32__
336 }
337
338 bool
339 wxIsAbsolutePath (const wxString& filename)
340 {
341 if (!filename.empty())
342 {
343 // Unix like or Windows
344 if (filename[0] == wxT('/'))
345 return true;
346 #ifdef __VMS__
347 if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
348 return true;
349 #endif
350 #if defined(__WINDOWS__) || defined(__OS2__)
351 // MSDOS like
352 if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
353 return true;
354 #endif
355 }
356 return false ;
357 }
358
359 #if WXWIN_COMPATIBILITY_2_8
360 /*
361 * Strip off any extension (dot something) from end of file,
362 * IF one exists. Inserts zero into buffer.
363 *
364 */
365
366 template<typename T>
367 static void wxDoStripExtension(T *buffer)
368 {
369 int len = wxStrlen(buffer);
370 int i = len-1;
371 while (i > 0)
372 {
373 if (buffer[i] == wxT('.'))
374 {
375 buffer[i] = 0;
376 break;
377 }
378 i --;
379 }
380 }
381
382 void wxStripExtension(char *buffer) { wxDoStripExtension(buffer); }
383 void wxStripExtension(wchar_t *buffer) { wxDoStripExtension(buffer); }
384
385 void wxStripExtension(wxString& buffer)
386 {
387 //RN: Be careful about the handling the case where
388 //buffer.length() == 0
389 for(size_t i = buffer.length() - 1; i != wxString::npos; --i)
390 {
391 if (buffer.GetChar(i) == wxT('.'))
392 {
393 buffer = buffer.Left(i);
394 break;
395 }
396 }
397 }
398
399 // Destructive removal of /./ and /../ stuff
400 template<typename CharType>
401 static CharType *wxDoRealPath (CharType *path)
402 {
403 static const CharType SEP = wxFILE_SEP_PATH;
404 #ifdef __WXMSW__
405 wxUnix2DosFilename(path);
406 #endif
407 if (path[0] && path[1]) {
408 /* MATTHEW: special case "/./x" */
409 CharType *p;
410 if (path[2] == SEP && path[1] == wxT('.'))
411 p = &path[0];
412 else
413 p = &path[2];
414 for (; *p; p++)
415 {
416 if (*p == SEP)
417 {
418 if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
419 {
420 CharType *q;
421 for (q = p - 1; q >= path && *q != SEP; q--)
422 {
423 // Empty
424 }
425
426 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
427 && (q - 1 <= path || q[-1] != SEP))
428 {
429 wxStrcpy (q, p + 3);
430 if (path[0] == wxT('\0'))
431 {
432 path[0] = SEP;
433 path[1] = wxT('\0');
434 }
435 #if defined(__WXMSW__) || defined(__OS2__)
436 /* Check that path[2] is NULL! */
437 else if (path[1] == wxT(':') && !path[2])
438 {
439 path[2] = SEP;
440 path[3] = wxT('\0');
441 }
442 #endif
443 p = q - 1;
444 }
445 }
446 else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
447 wxStrcpy (p, p + 2);
448 }
449 }
450 }
451 return path;
452 }
453
454 char *wxRealPath(char *path)
455 {
456 return wxDoRealPath(path);
457 }
458
459 wchar_t *wxRealPath(wchar_t *path)
460 {
461 return wxDoRealPath(path);
462 }
463
464 wxString wxRealPath(const wxString& path)
465 {
466 wxChar *buf1=MYcopystring(path);
467 wxChar *buf2=wxRealPath(buf1);
468 wxString buf(buf2);
469 delete [] buf1;
470 return buf;
471 }
472
473
474 // Must be destroyed
475 wxChar *wxCopyAbsolutePath(const wxString& filename)
476 {
477 if (filename.empty())
478 return NULL;
479
480 if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename)))
481 {
482 wxString buf = ::wxGetCwd();
483 wxChar ch = buf.Last();
484 #ifdef __WXMSW__
485 if (ch != wxT('\\') && ch != wxT('/'))
486 buf << wxT("\\");
487 #else
488 if (ch != wxT('/'))
489 buf << wxT("/");
490 #endif
491 buf << wxFileFunctionsBuffer;
492 buf = wxRealPath( buf );
493 return MYcopystring( buf );
494 }
495 return MYcopystring( wxFileFunctionsBuffer );
496 }
497
498 /*-
499 Handles:
500 ~/ => home dir
501 ~user/ => user's home dir
502 If the environment variable a = "foo" and b = "bar" then:
503 Unix:
504 $a => foo
505 $a$b => foobar
506 $a.c => foo.c
507 xxx$a => xxxfoo
508 ${a}! => foo!
509 $(b)! => bar!
510 \$a => \$a
511 MSDOS:
512 $a ==> $a
513 $(a) ==> foo
514 $(a)$b ==> foo$b
515 $(a)$(b)==> foobar
516 test.$$ ==> test.$$
517 */
518
519 /* input name in name, pathname output to buf. */
520
521 template<typename CharType>
522 static CharType *wxDoExpandPath(CharType *buf, const wxString& name)
523 {
524 register CharType *d, *s, *nm;
525 CharType lnm[_MAXPATHLEN];
526 int q;
527
528 // Some compilers don't like this line.
529 // const CharType trimchars[] = wxT("\n \t");
530
531 CharType trimchars[4];
532 trimchars[0] = wxT('\n');
533 trimchars[1] = wxT(' ');
534 trimchars[2] = wxT('\t');
535 trimchars[3] = 0;
536
537 static const CharType SEP = wxFILE_SEP_PATH;
538 #ifdef __WXMSW__
539 //wxUnix2DosFilename(path);
540 #endif
541
542 buf[0] = wxT('\0');
543 if (name.empty())
544 return buf;
545 nm = ::MYcopystring(static_cast<const CharType*>(name.c_str())); // Make a scratch copy
546 CharType *nm_tmp = nm;
547
548 /* Skip leading whitespace and cr */
549 while (wxStrchr(trimchars, *nm) != NULL)
550 nm++;
551 /* And strip off trailing whitespace and cr */
552 s = nm + (q = wxStrlen(nm)) - 1;
553 while (q-- && wxStrchr(trimchars, *s) != NULL)
554 *s = wxT('\0');
555
556 s = nm;
557 d = lnm;
558 #ifdef __WXMSW__
559 q = FALSE;
560 #else
561 q = nm[0] == wxT('\\') && nm[1] == wxT('~');
562 #endif
563
564 /* Expand inline environment variables */
565 #ifdef __VISAGECPP__
566 while (*d)
567 {
568 *d++ = *s;
569 if(*s == wxT('\\'))
570 {
571 *(d - 1) = *++s;
572 if (*d)
573 {
574 s++;
575 continue;
576 }
577 else
578 break;
579 }
580 else
581 #else
582 while ((*d++ = *s) != 0) {
583 # ifndef __WXMSW__
584 if (*s == wxT('\\')) {
585 if ((*(d - 1) = *++s)!=0) {
586 s++;
587 continue;
588 } else
589 break;
590 } else
591 # endif
592 #endif
593 // No env variables on WinCE
594 #ifndef __WXWINCE__
595 #ifdef __WXMSW__
596 if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
597 #else
598 if (*s++ == wxT('$'))
599 #endif
600 {
601 register CharType *start = d;
602 register int braces = (*s == wxT('{') || *s == wxT('('));
603 register CharType *value;
604 while ((*d++ = *s) != 0)
605 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
606 break;
607 else
608 s++;
609 *--d = 0;
610 value = wxGetenv(braces ? start + 1 : start);
611 if (value) {
612 for ((d = start - 1); (*d++ = *value++) != 0;)
613 {
614 // Empty
615 }
616
617 d--;
618 if (braces && *s)
619 s++;
620 }
621 }
622 #endif
623 // __WXWINCE__
624 }
625
626 /* Expand ~ and ~user */
627 wxString homepath;
628 nm = lnm;
629 if (nm[0] == wxT('~') && !q)
630 {
631 /* prefix ~ */
632 if (nm[1] == SEP || nm[1] == 0)
633 { /* ~/filename */
634 homepath = wxGetUserHome(wxEmptyString);
635 if (!homepath.empty()) {
636 s = (CharType*)(const CharType*)homepath.c_str();
637 if (*++nm)
638 nm++;
639 }
640 } else
641 { /* ~user/filename */
642 register CharType *nnm;
643 for (s = nm; *s && *s != SEP; s++)
644 {
645 // Empty
646 }
647 int was_sep; /* MATTHEW: Was there a separator, or NULL? */
648 was_sep = (*s == SEP);
649 nnm = *s ? s + 1 : s;
650 *s = 0;
651 homepath = wxGetUserHome(wxString(nm + 1));
652 if (homepath.empty())
653 {
654 if (was_sep) /* replace only if it was there: */
655 *s = SEP;
656 s = NULL;
657 }
658 else
659 {
660 nm = nnm;
661 s = (CharType*)(const CharType*)homepath.c_str();
662 }
663 }
664 }
665
666 d = buf;
667 if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
668 /* Copy home dir */
669 while (wxT('\0') != (*d++ = *s++))
670 /* loop */;
671 // Handle root home
672 if (d - 1 > buf && *(d - 2) != SEP)
673 *(d - 1) = SEP;
674 }
675 s = nm;
676 while ((*d++ = *s++) != 0)
677 {
678 // Empty
679 }
680 delete[] nm_tmp; // clean up alloc
681 /* Now clean up the buffer */
682 return wxRealPath(buf);
683 }
684
685 char *wxExpandPath(char *buf, const wxString& name)
686 {
687 return wxDoExpandPath(buf, name);
688 }
689
690 wchar_t *wxExpandPath(wchar_t *buf, const wxString& name)
691 {
692 return wxDoExpandPath(buf, name);
693 }
694
695
696 /* Contract Paths to be build upon an environment variable
697 component:
698
699 example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
700
701 The call wxExpandPath can convert these back!
702 */
703 wxChar *
704 wxContractPath (const wxString& filename,
705 const wxString& WXUNUSED_IN_WINCE(envname),
706 const wxString& user)
707 {
708 static wxChar dest[_MAXPATHLEN];
709
710 if (filename.empty())
711 return NULL;
712
713 wxStrcpy (dest, filename);
714 #ifdef __WXMSW__
715 wxUnix2DosFilename(dest);
716 #endif
717
718 // Handle environment
719 wxString val;
720 #ifndef __WXWINCE__
721 wxChar *tcp;
722 if (!envname.empty() && !(val = wxGetenv (envname)).empty() &&
723 (tcp = wxStrstr (dest, val)) != NULL)
724 {
725 wxStrcpy (wxFileFunctionsBuffer, tcp + val.length());
726 *tcp++ = wxT('$');
727 *tcp++ = wxT('{');
728 wxStrcpy (tcp, envname);
729 wxStrcat (tcp, wxT("}"));
730 wxStrcat (tcp, wxFileFunctionsBuffer);
731 }
732 #endif
733
734 // Handle User's home (ignore root homes!)
735 val = wxGetUserHome (user);
736 if (val.empty())
737 return dest;
738
739 const size_t len = val.length();
740 if (len <= 2)
741 return dest;
742
743 if (wxStrncmp(dest, val, len) == 0)
744 {
745 wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
746 if (!user.empty())
747 wxStrcat(wxFileFunctionsBuffer, user);
748 wxStrcat(wxFileFunctionsBuffer, dest + len);
749 wxStrcpy (dest, wxFileFunctionsBuffer);
750 }
751
752 return dest;
753 }
754
755 #endif // #if WXWIN_COMPATIBILITY_2_8
756
757 // Return just the filename, not the path (basename)
758 wxChar *wxFileNameFromPath (wxChar *path)
759 {
760 wxString p = path;
761 wxString n = wxFileNameFromPath(p);
762
763 return path + p.length() - n.length();
764 }
765
766 wxString wxFileNameFromPath (const wxString& path)
767 {
768 wxString name, ext;
769 wxFileName::SplitPath(path, NULL, &name, &ext);
770
771 wxString fullname = name;
772 if ( !ext.empty() )
773 {
774 fullname << wxFILE_SEP_EXT << ext;
775 }
776
777 return fullname;
778 }
779
780 // Return just the directory, or NULL if no directory
781 wxChar *
782 wxPathOnly (wxChar *path)
783 {
784 if (path && *path)
785 {
786 static wxChar buf[_MAXPATHLEN];
787
788 // Local copy
789 wxStrcpy (buf, path);
790
791 int l = wxStrlen(path);
792 int i = l - 1;
793
794 // Search backward for a backward or forward slash
795 while (i > -1)
796 {
797 // Unix like or Windows
798 if (path[i] == wxT('/') || path[i] == wxT('\\'))
799 {
800 buf[i] = 0;
801 return buf;
802 }
803 #ifdef __VMS__
804 if (path[i] == wxT(']'))
805 {
806 buf[i+1] = 0;
807 return buf;
808 }
809 #endif
810 i --;
811 }
812
813 #if defined(__WXMSW__) || defined(__OS2__)
814 // Try Drive specifier
815 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
816 {
817 // A:junk --> A:. (since A:.\junk Not A:\junk)
818 buf[2] = wxT('.');
819 buf[3] = wxT('\0');
820 return buf;
821 }
822 #endif
823 }
824 return NULL;
825 }
826
827 // Return just the directory, or NULL if no directory
828 wxString wxPathOnly (const wxString& path)
829 {
830 if (!path.empty())
831 {
832 wxChar buf[_MAXPATHLEN];
833
834 // Local copy
835 wxStrcpy(buf, path);
836
837 int l = path.length();
838 int i = l - 1;
839
840 // Search backward for a backward or forward slash
841 while (i > -1)
842 {
843 // Unix like or Windows
844 if (path[i] == wxT('/') || path[i] == wxT('\\'))
845 {
846 // Don't return an empty string
847 if (i == 0)
848 i ++;
849 buf[i] = 0;
850 return wxString(buf);
851 }
852 #ifdef __VMS__
853 if (path[i] == wxT(']'))
854 {
855 buf[i+1] = 0;
856 return wxString(buf);
857 }
858 #endif
859 i --;
860 }
861
862 #if defined(__WXMSW__) || defined(__OS2__)
863 // Try Drive specifier
864 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
865 {
866 // A:junk --> A:. (since A:.\junk Not A:\junk)
867 buf[2] = wxT('.');
868 buf[3] = wxT('\0');
869 return wxString(buf);
870 }
871 #endif
872 }
873 return wxEmptyString;
874 }
875
876 // Utility for converting delimiters in DOS filenames to UNIX style
877 // and back again - or we get nasty problems with delimiters.
878 // Also, convert to lower case, since case is significant in UNIX.
879
880 #if defined(__WXMAC__) && !defined(__WXOSX_IPHONE__)
881
882 #define kDefaultPathStyle kCFURLPOSIXPathStyle
883
884 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
885 {
886 CFURLRef fullURLRef;
887 fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
888 if ( additionalPathComponent )
889 {
890 CFURLRef parentURLRef = fullURLRef ;
891 fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
892 additionalPathComponent,false);
893 CFRelease( parentURLRef ) ;
894 }
895 CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
896 CFRelease( fullURLRef ) ;
897 CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfString);
898 CFRelease( cfString );
899 CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
900 return wxCFStringRef(cfMutableString).AsString();
901 }
902
903 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
904 {
905 OSStatus err = noErr ;
906 CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, wxCFStringRef(path));
907 CFStringNormalize(cfMutableString,kCFStringNormalizationFormD);
908 CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfMutableString , kDefaultPathStyle, false);
909 CFRelease( cfMutableString );
910 if ( NULL != url )
911 {
912 if ( CFURLGetFSRef(url, fsRef) == false )
913 err = fnfErr ;
914 CFRelease( url ) ;
915 }
916 else
917 {
918 err = fnfErr ;
919 }
920 return err ;
921 }
922
923 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
924 {
925 CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
926 uniname->unicode,
927 uniname->length );
928 CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfname);
929 CFRelease( cfname );
930 CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
931 return wxCFStringRef(cfMutableString).AsString() ;
932 }
933
934 #ifndef __LP64__
935
936 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
937 {
938 FSRef fsRef ;
939 if ( FSpMakeFSRef( spec , &fsRef) == noErr )
940 {
941 return wxMacFSRefToPath( &fsRef ) ;
942 }
943 return wxEmptyString ;
944 }
945
946 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
947 {
948 OSStatus err = noErr;
949 FSRef fsRef;
950 wxMacPathToFSRef( path , &fsRef );
951 err = FSGetCatalogInfo(&fsRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
952 verify_noerr( err );
953 }
954 #endif
955
956 #endif // __WXMAC__
957
958
959 #if WXWIN_COMPATIBILITY_2_8
960
961 template<typename T>
962 static void wxDoDos2UnixFilename(T *s)
963 {
964 if (s)
965 while (*s)
966 {
967 if (*s == _T('\\'))
968 *s = _T('/');
969 #ifdef __WXMSW__
970 else
971 *s = wxTolower(*s); // Case INDEPENDENT
972 #endif
973 s++;
974 }
975 }
976
977 void wxDos2UnixFilename(char *s) { wxDoDos2UnixFilename(s); }
978 void wxDos2UnixFilename(wchar_t *s) { wxDoDos2UnixFilename(s); }
979
980 template<typename T>
981 static void
982 #if defined(__WXMSW__) || defined(__OS2__)
983 wxDoUnix2DosFilename(T *s)
984 #else
985 wxDoUnix2DosFilename(T *WXUNUSED(s) )
986 #endif
987 {
988 // Yes, I really mean this to happen under DOS only! JACS
989 #if defined(__WXMSW__) || defined(__OS2__)
990 if (s)
991 while (*s)
992 {
993 if (*s == wxT('/'))
994 *s = wxT('\\');
995 s++;
996 }
997 #endif
998 }
999
1000 void wxUnix2DosFilename(char *s) { wxDoUnix2DosFilename(s); }
1001 void wxUnix2DosFilename(wchar_t *s) { wxDoUnix2DosFilename(s); }
1002
1003 #endif // #if WXWIN_COMPATIBILITY_2_8
1004
1005 // Concatenate two files to form third
1006 bool
1007 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
1008 {
1009 #if wxUSE_FILE
1010
1011 wxFile in1(file1), in2(file2);
1012 wxTempFile out(file3);
1013
1014 if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
1015 return false;
1016
1017 ssize_t ofs;
1018 unsigned char buf[1024];
1019
1020 for( int i=0; i<2; i++)
1021 {
1022 wxFile *in = i==0 ? &in1 : &in2;
1023 do{
1024 if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
1025 if ( ofs > 0 )
1026 if ( !out.Write(buf,ofs) )
1027 return false;
1028 } while ( ofs == (ssize_t)WXSIZEOF(buf) );
1029 }
1030
1031 return out.Commit();
1032
1033 #else
1034
1035 wxUnusedVar(file1);
1036 wxUnusedVar(file2);
1037 wxUnusedVar(file3);
1038 return false;
1039
1040 #endif
1041 }
1042
1043 // helper of generic implementation of wxCopyFile()
1044 #if !(defined(__WIN32__) || defined(__OS2__) || defined(__PALMOS__)) && \
1045 wxUSE_FILE
1046
1047 static bool
1048 wxDoCopyFile(wxFile& fileIn,
1049 const wxStructStat& fbuf,
1050 const wxString& filenameDst,
1051 bool overwrite)
1052 {
1053 // reset the umask as we want to create the file with exactly the same
1054 // permissions as the original one
1055 wxCHANGE_UMASK(0);
1056
1057 // create file2 with the same permissions than file1 and open it for
1058 // writing
1059
1060 wxFile fileOut;
1061 if ( !fileOut.Create(filenameDst, overwrite, fbuf.st_mode & 0777) )
1062 return false;
1063
1064 // copy contents of file1 to file2
1065 char buf[4096];
1066 for ( ;; )
1067 {
1068 ssize_t count = fileIn.Read(buf, WXSIZEOF(buf));
1069 if ( count == wxInvalidOffset )
1070 return false;
1071
1072 // end of file?
1073 if ( !count )
1074 break;
1075
1076 if ( fileOut.Write(buf, count) < (size_t)count )
1077 return false;
1078 }
1079
1080 // we can expect fileIn to be closed successfully, but we should ensure
1081 // that fileOut was closed as some write errors (disk full) might not be
1082 // detected before doing this
1083 return fileIn.Close() && fileOut.Close();
1084 }
1085
1086 #endif // generic implementation of wxCopyFile
1087
1088 // Copy files
1089 bool
1090 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1091 {
1092 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1093 // CopyFile() copies file attributes and modification time too, so use it
1094 // instead of our code if available
1095 //
1096 // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1097 if ( !::CopyFile(file1.fn_str(), file2.fn_str(), !overwrite) )
1098 {
1099 wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1100 file1.c_str(), file2.c_str());
1101
1102 return false;
1103 }
1104 #elif defined(__OS2__)
1105 if ( ::DosCopy(file1.c_str(), file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1106 return false;
1107 #elif defined(__PALMOS__)
1108 // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1109 return false;
1110 #elif wxUSE_FILE // !Win32
1111
1112 wxStructStat fbuf;
1113 // get permissions of file1
1114 if ( wxStat( file1.c_str(), &fbuf) != 0 )
1115 {
1116 // the file probably doesn't exist or we haven't the rights to read
1117 // from it anyhow
1118 wxLogSysError(_("Impossible to get permissions for file '%s'"),
1119 file1.c_str());
1120 return false;
1121 }
1122
1123 // open file1 for reading
1124 wxFile fileIn(file1, wxFile::read);
1125 if ( !fileIn.IsOpened() )
1126 return false;
1127
1128 // remove file2, if it exists. This is needed for creating
1129 // file2 with the correct permissions in the next step
1130 if ( wxFileExists(file2) && (!overwrite || !wxRemoveFile(file2)))
1131 {
1132 wxLogSysError(_("Impossible to overwrite the file '%s'"),
1133 file2.c_str());
1134 return false;
1135 }
1136
1137 wxDoCopyFile(fileIn, fbuf, file2, overwrite);
1138
1139 #if defined(__WXMAC__) || defined(__WXCOCOA__)
1140 // copy the resource fork of the file too if it's present
1141 wxString pathRsrcOut;
1142 wxFile fileRsrcIn;
1143
1144 {
1145 // suppress error messages from this block as resource forks don't have
1146 // to exist
1147 wxLogNull noLog;
1148
1149 // it's not enough to check for file existence: it always does on HFS
1150 // but is empty for files without resources
1151 if ( fileRsrcIn.Open(file1 + wxT("/..namedfork/rsrc")) &&
1152 fileRsrcIn.Length() > 0 )
1153 {
1154 // we must be using HFS or another filesystem with resource fork
1155 // support, suppose that destination file system also is HFS[-like]
1156 pathRsrcOut = file2 + wxT("/..namedfork/rsrc");
1157 }
1158 else // check if we have resource fork in separate file (non-HFS case)
1159 {
1160 wxFileName fnRsrc(file1);
1161 fnRsrc.SetName(wxT("._") + fnRsrc.GetName());
1162
1163 fileRsrcIn.Close();
1164 if ( fileRsrcIn.Open( fnRsrc.GetFullPath() ) )
1165 {
1166 fnRsrc = file2;
1167 fnRsrc.SetName(wxT("._") + fnRsrc.GetName());
1168
1169 pathRsrcOut = fnRsrc.GetFullPath();
1170 }
1171 }
1172 }
1173
1174 if ( !pathRsrcOut.empty() )
1175 {
1176 if ( !wxDoCopyFile(fileRsrcIn, fbuf, pathRsrcOut, overwrite) )
1177 return false;
1178 }
1179 #endif // wxMac || wxCocoa
1180
1181 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1182 // no chmod in VA. Should be some permission API for HPFS386 partitions
1183 // however
1184 if ( chmod(file2.fn_str(), fbuf.st_mode) != 0 )
1185 {
1186 wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1187 file2.c_str());
1188 return false;
1189 }
1190 #endif // OS/2 || Mac
1191
1192 #else // !Win32 && ! wxUSE_FILE
1193
1194 // impossible to simulate with wxWidgets API
1195 wxUnusedVar(file1);
1196 wxUnusedVar(file2);
1197 wxUnusedVar(overwrite);
1198 return false;
1199
1200 #endif // __WXMSW__ && __WIN32__
1201
1202 return true;
1203 }
1204
1205 bool
1206 wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite)
1207 {
1208 if ( !overwrite && wxFileExists(file2) )
1209 {
1210 wxLogSysError
1211 (
1212 _("Failed to rename the file '%s' to '%s' because the destination file already exists."),
1213 file1.c_str(), file2.c_str()
1214 );
1215
1216 return false;
1217 }
1218
1219 #if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1220 // Normal system call
1221 if ( wxRename (file1, file2) == 0 )
1222 return true;
1223 #endif
1224
1225 // Try to copy
1226 if (wxCopyFile(file1, file2, overwrite)) {
1227 wxRemoveFile(file1);
1228 return true;
1229 }
1230 // Give up
1231 return false;
1232 }
1233
1234 bool wxRemoveFile(const wxString& file)
1235 {
1236 #if defined(__VISUALC__) \
1237 || defined(__BORLANDC__) \
1238 || defined(__WATCOMC__) \
1239 || defined(__DMC__) \
1240 || defined(__GNUWIN32__) \
1241 || (defined(__MWERKS__) && defined(__MSL__))
1242 int res = wxRemove(file);
1243 #elif defined(__WXMAC__)
1244 int res = unlink(file.fn_str());
1245 #elif defined(__WXPALMOS__)
1246 int res = 1;
1247 // TODO with VFSFileDelete()
1248 #else
1249 int res = unlink(file.fn_str());
1250 #endif
1251
1252 return res == 0;
1253 }
1254
1255 bool wxMkdir(const wxString& dir, int perm)
1256 {
1257 #if defined(__WXPALMOS__)
1258 return false;
1259 #else
1260 #if defined(__WXMAC__) && !defined(__UNIX__)
1261 if ( mkdir(dir.fn_str(), 0) != 0 )
1262
1263 // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1264 // for the GNU compiler
1265 #elif (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || \
1266 (defined(__GNUWIN32__) && !defined(__MINGW32__)) || \
1267 defined(__WINE__) || defined(__WXMICROWIN__)
1268 const wxChar *dirname = dir.c_str();
1269 #if defined(MSVCRT)
1270 wxUnusedVar(perm);
1271 if ( mkdir(wxFNCONV(dirname)) != 0 )
1272 #else
1273 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1274 #endif
1275 #elif defined(__OS2__)
1276 wxUnusedVar(perm);
1277 if (::DosCreateDir(dir.c_str(), NULL) != 0) // enhance for EAB's??
1278 #elif defined(__DOS__)
1279 const wxChar *dirname = dir.c_str();
1280 #if defined(__WATCOMC__)
1281 (void)perm;
1282 if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1283 #elif defined(__DJGPP__)
1284 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1285 #else
1286 #error "Unsupported DOS compiler!"
1287 #endif
1288 #else // !MSW, !DOS and !OS/2 VAC++
1289 wxUnusedVar(perm);
1290 #ifdef __WXWINCE__
1291 if ( CreateDirectory(dir, NULL) == 0 )
1292 #else
1293 if ( wxMkDir(dir.fn_str()) != 0 )
1294 #endif
1295 #endif // !MSW/MSW
1296 {
1297 wxLogSysError(_("Directory '%s' couldn't be created"), dir);
1298 return false;
1299 }
1300
1301 return true;
1302 #endif // PALMOS/!PALMOS
1303 }
1304
1305 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1306 {
1307 #if defined(__VMS__)
1308 return false; //to be changed since rmdir exists in VMS7.x
1309 #elif defined(__WXPALMOS__)
1310 // TODO with VFSFileRename()
1311 return false;
1312 #else
1313 #if defined(__OS2__)
1314 if ( ::DosDeleteDir(dir.c_str()) != 0 )
1315 #elif defined(__WXWINCE__)
1316 if ( RemoveDirectory(dir) == 0 )
1317 #else
1318 if ( wxRmDir(dir.fn_str()) != 0 )
1319 #endif
1320 {
1321 wxLogSysError(_("Directory '%s' couldn't be deleted"), dir);
1322 return false;
1323 }
1324
1325 return true;
1326 #endif // PALMOS/!PALMOS
1327 }
1328
1329 // does the path exists? (may have or not '/' or '\\' at the end)
1330 bool wxDirExists(const wxString& pathName)
1331 {
1332 wxString strPath(pathName);
1333
1334 #if defined(__WINDOWS__) || defined(__OS2__)
1335 // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1336 // so remove all trailing backslashes from the path - but don't do this for
1337 // the paths "d:\" (which are different from "d:") nor for just "\"
1338 while ( wxEndsWithPathSeparator(strPath) )
1339 {
1340 size_t len = strPath.length();
1341 if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1342 break;
1343
1344 strPath.Truncate(len - 1);
1345 }
1346 #endif // __WINDOWS__
1347
1348 #ifdef __OS2__
1349 // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1350 if (strPath.length() == 2 && strPath[1u] == _T(':'))
1351 strPath << _T('.');
1352 #endif
1353
1354 #if defined(__WXPALMOS__)
1355 return false;
1356 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
1357 // stat() can't cope with network paths
1358 DWORD ret = ::GetFileAttributes(strPath.fn_str());
1359
1360 return (ret != INVALID_FILE_ATTRIBUTES) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1361 #elif defined(__OS2__)
1362 FILESTATUS3 Info = {{0}};
1363 APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
1364 (void*) &Info, sizeof(FILESTATUS3));
1365
1366 return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
1367 (rc == ERROR_SHARING_VIOLATION);
1368 // If we got a sharing violation, there must be something with this name.
1369 #else // !__WIN32__
1370
1371 wxStructStat st;
1372 #ifndef __VISAGECPP__
1373 return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1374 #else
1375 // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1376 return wxStat(strPath.c_str(), &st) == 0 && (st.st_mode == S_IFDIR);
1377 #endif
1378
1379 #endif // __WIN32__/!__WIN32__
1380 }
1381
1382 #if WXWIN_COMPATIBILITY_2_8
1383
1384 // Get a temporary filename, opening and closing the file.
1385 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1386 {
1387 wxString filename;
1388 if ( !wxGetTempFileName(prefix, filename) )
1389 return NULL;
1390
1391 if ( buf )
1392 #ifdef _PACC_VER
1393 // work around the PalmOS pacc compiler bug
1394 wxStrcpy(buf, filename.data());
1395 #else
1396 wxStrcpy(buf, filename);
1397 #endif
1398 else
1399 buf = MYcopystring(filename);
1400
1401 return buf;
1402 }
1403
1404 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1405 {
1406 #if wxUSE_FILE
1407 buf = wxFileName::CreateTempFileName(prefix);
1408
1409 return !buf.empty();
1410 #else // !wxUSE_FILE
1411 wxUnusedVar(prefix);
1412 wxUnusedVar(buf);
1413
1414 return false;
1415 #endif // wxUSE_FILE/!wxUSE_FILE
1416 }
1417
1418 #endif // #if WXWIN_COMPATIBILITY_2_8
1419
1420 // Get first file name matching given wild card.
1421
1422 static wxDir *gs_dir = NULL;
1423 static wxString gs_dirPath;
1424
1425 wxString wxFindFirstFile(const wxString& spec, int flags)
1426 {
1427 wxFileName::SplitPath(spec, &gs_dirPath, NULL, NULL);
1428 if ( gs_dirPath.empty() )
1429 gs_dirPath = wxT(".");
1430 if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1431 gs_dirPath << wxFILE_SEP_PATH;
1432
1433 delete gs_dir; // can be NULL, this is ok
1434 gs_dir = new wxDir(gs_dirPath);
1435
1436 if ( !gs_dir->IsOpened() )
1437 {
1438 wxLogSysError(_("Can not enumerate files '%s'"), spec);
1439 return wxEmptyString;
1440 }
1441
1442 int dirFlags;
1443 switch (flags)
1444 {
1445 case wxDIR: dirFlags = wxDIR_DIRS; break;
1446 case wxFILE: dirFlags = wxDIR_FILES; break;
1447 default: dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1448 }
1449
1450 wxString result;
1451 gs_dir->GetFirst(&result, wxFileNameFromPath(spec), dirFlags);
1452 if ( result.empty() )
1453 {
1454 wxDELETE(gs_dir);
1455 return result;
1456 }
1457
1458 return gs_dirPath + result;
1459 }
1460
1461 wxString wxFindNextFile()
1462 {
1463 wxCHECK_MSG( gs_dir, "", "You must call wxFindFirstFile before!" );
1464
1465 wxString result;
1466 gs_dir->GetNext(&result);
1467
1468 if ( result.empty() )
1469 {
1470 wxDELETE(gs_dir);
1471 return result;
1472 }
1473
1474 return gs_dirPath + result;
1475 }
1476
1477
1478 // Get current working directory.
1479 // If buf is NULL, allocates space using new, else copies into buf.
1480 // wxGetWorkingDirectory() is obsolete, use wxGetCwd()
1481 // wxDoGetCwd() is their common core to be moved
1482 // to wxGetCwd() once wxGetWorkingDirectory() will be removed.
1483 // Do not expose wxDoGetCwd in headers!
1484
1485 wxChar *wxDoGetCwd(wxChar *buf, int sz)
1486 {
1487 #if defined(__WXPALMOS__)
1488 // TODO
1489 if(buf && sz>0) buf[0] = _T('\0');
1490 return buf;
1491 #elif defined(__WXWINCE__)
1492 // TODO
1493 if(buf && sz>0) buf[0] = _T('\0');
1494 return buf;
1495 #else
1496 if ( !buf )
1497 {
1498 buf = new wxChar[sz + 1];
1499 }
1500
1501 bool ok wxDUMMY_INITIALIZE(false);
1502
1503 // for the compilers which have Unicode version of _getcwd(), call it
1504 // directly, for the others call the ANSI version and do the translation
1505 #if !wxUSE_UNICODE
1506 #define cbuf buf
1507 #else // wxUSE_UNICODE
1508 bool needsANSI = true;
1509
1510 #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1511 char cbuf[_MAXPATHLEN];
1512 #endif
1513
1514 #ifdef HAVE_WGETCWD
1515 #if wxUSE_UNICODE_MSLU
1516 if ( wxGetOsVersion() != wxOS_WINDOWS_9X )
1517 #else
1518 char *cbuf = NULL; // never really used because needsANSI will always be false
1519 #endif
1520 {
1521 ok = _wgetcwd(buf, sz) != NULL;
1522 needsANSI = false;
1523 }
1524 #endif
1525
1526 if ( needsANSI )
1527 #endif // wxUSE_UNICODE
1528 {
1529 #if defined(_MSC_VER) || defined(__MINGW32__)
1530 ok = _getcwd(cbuf, sz) != NULL;
1531 #elif defined(__OS2__)
1532 APIRET rc;
1533 ULONG ulDriveNum = 0;
1534 ULONG ulDriveMap = 0;
1535 rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1536 ok = rc == 0;
1537 if (ok)
1538 {
1539 sz -= 3;
1540 rc = ::DosQueryCurrentDir( 0 // current drive
1541 ,(PBYTE)cbuf + 3
1542 ,(PULONG)&sz
1543 );
1544 cbuf[0] = char('A' + (ulDriveNum - 1));
1545 cbuf[1] = ':';
1546 cbuf[2] = '\\';
1547 ok = rc == 0;
1548 }
1549 #else // !Win32/VC++ !Mac !OS2
1550 ok = getcwd(cbuf, sz) != NULL;
1551 #endif // platform
1552
1553 #if wxUSE_UNICODE
1554 // finally convert the result to Unicode if needed
1555 wxConvFile.MB2WC(buf, cbuf, sz);
1556 #endif // wxUSE_UNICODE
1557 }
1558
1559 if ( !ok )
1560 {
1561 wxLogSysError(_("Failed to get the working directory"));
1562
1563 // VZ: the old code used to return "." on error which didn't make any
1564 // sense at all to me - empty string is a better error indicator
1565 // (NULL might be even better but I'm afraid this could lead to
1566 // problems with the old code assuming the return is never NULL)
1567 buf[0] = _T('\0');
1568 }
1569 else // ok, but we might need to massage the path into the right format
1570 {
1571 #ifdef __DJGPP__
1572 // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1573 // with / deliminers. We don't like that.
1574 for (wxChar *ch = buf; *ch; ch++)
1575 {
1576 if (*ch == wxT('/'))
1577 *ch = wxT('\\');
1578 }
1579 #endif // __DJGPP__
1580
1581 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1582 // he needs Unix as opposed to Win32 pathnames
1583 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1584 // another example of DOS/Unix mix (Cygwin)
1585 wxString pathUnix = buf;
1586 #if wxUSE_UNICODE
1587 char bufA[_MAXPATHLEN];
1588 cygwin_conv_to_full_win32_path(pathUnix.mb_str(wxConvFile), bufA);
1589 wxConvFile.MB2WC(buf, bufA, sz);
1590 #else
1591 cygwin_conv_to_full_win32_path(pathUnix, buf);
1592 #endif // wxUSE_UNICODE
1593 #endif // __CYGWIN__
1594 }
1595
1596 return buf;
1597
1598 #if !wxUSE_UNICODE
1599 #undef cbuf
1600 #endif
1601
1602 #endif
1603 // __WXWINCE__
1604 }
1605
1606 #if WXWIN_COMPATIBILITY_2_6
1607 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1608 {
1609 return wxDoGetCwd(buf,sz);
1610 }
1611 #endif // WXWIN_COMPATIBILITY_2_6
1612
1613 wxString wxGetCwd()
1614 {
1615 wxString str;
1616 wxDoGetCwd(wxStringBuffer(str, _MAXPATHLEN), _MAXPATHLEN);
1617 return str;
1618 }
1619
1620 bool wxSetWorkingDirectory(const wxString& d)
1621 {
1622 #if defined(__OS2__)
1623 if (d[1] == ':')
1624 {
1625 ::DosSetDefaultDisk(wxToupper(d[0]) - _T('A') + 1);
1626 // do not call DosSetCurrentDir when just changing drive,
1627 // since it requires e.g. "d:." instead of "d:"!
1628 if (d.length() == 2)
1629 return true;
1630 }
1631 return (::DosSetCurrentDir(d.c_str()) == 0);
1632 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1633 return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1634 #elif defined(__WINDOWS__)
1635
1636 #ifdef __WIN32__
1637 #ifdef __WXWINCE__
1638 // No equivalent in WinCE
1639 wxUnusedVar(d);
1640 return false;
1641 #else
1642 return (bool)(SetCurrentDirectory(d.fn_str()) != 0);
1643 #endif
1644 #else
1645 // Must change drive, too.
1646 bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1647 if (isDriveSpec)
1648 {
1649 wxChar firstChar = d[0];
1650
1651 // To upper case
1652 if (firstChar > 90)
1653 firstChar = firstChar - 32;
1654
1655 // To a drive number
1656 unsigned int driveNo = firstChar - 64;
1657 if (driveNo > 0)
1658 {
1659 unsigned int noDrives;
1660 _dos_setdrive(driveNo, &noDrives);
1661 }
1662 }
1663 bool success = (chdir(WXSTRINGCAST d) == 0);
1664
1665 return success;
1666 #endif
1667
1668 #endif
1669 }
1670
1671 // Get the OS directory if appropriate (such as the Windows directory).
1672 // On non-Windows platform, probably just return the empty string.
1673 wxString wxGetOSDirectory()
1674 {
1675 #ifdef __WXWINCE__
1676 return wxString(wxT("\\Windows"));
1677 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1678 wxChar buf[256];
1679 GetWindowsDirectory(buf, 256);
1680 return wxString(buf);
1681 #elif defined(__WXMAC__) && wxOSX_USE_CARBON
1682 return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1683 #else
1684 return wxEmptyString;
1685 #endif
1686 }
1687
1688 bool wxEndsWithPathSeparator(const wxString& filename)
1689 {
1690 return !filename.empty() && wxIsPathSeparator(filename.Last());
1691 }
1692
1693 // find a file in a list of directories, returns false if not found
1694 bool wxFindFileInPath(wxString *pStr, const wxString& szPath, const wxString& szFile)
1695 {
1696 // we assume that it's not empty
1697 wxCHECK_MSG( !szFile.empty(), false,
1698 _T("empty file name in wxFindFileInPath"));
1699
1700 // skip path separator in the beginning of the file name if present
1701 wxString szFile2;
1702 if ( wxIsPathSeparator(szFile[0u]) )
1703 szFile2 = szFile.Mid(1);
1704 else
1705 szFile2 = szFile;
1706
1707 wxStringTokenizer tkn(szPath, wxPATH_SEP);
1708
1709 while ( tkn.HasMoreTokens() )
1710 {
1711 wxString strFile = tkn.GetNextToken();
1712 if ( !wxEndsWithPathSeparator(strFile) )
1713 strFile += wxFILE_SEP_PATH;
1714 strFile += szFile2;
1715
1716 if ( wxFileExists(strFile) )
1717 {
1718 *pStr = strFile;
1719 return true;
1720 }
1721 }
1722
1723 return false;
1724 }
1725
1726 #if WXWIN_COMPATIBILITY_2_8
1727 void WXDLLIMPEXP_BASE wxSplitPath(const wxString& fileName,
1728 wxString *pstrPath,
1729 wxString *pstrName,
1730 wxString *pstrExt)
1731 {
1732 wxFileName::SplitPath(fileName, pstrPath, pstrName, pstrExt);
1733 }
1734 #endif // #if WXWIN_COMPATIBILITY_2_8
1735
1736 #if wxUSE_DATETIME
1737
1738 time_t WXDLLIMPEXP_BASE wxFileModificationTime(const wxString& filename)
1739 {
1740 wxDateTime mtime;
1741 if ( !wxFileName(filename).GetTimes(NULL, &mtime, NULL) )
1742 return (time_t)-1;
1743
1744 return mtime.GetTicks();
1745 }
1746
1747 #endif // wxUSE_DATETIME
1748
1749
1750 // Parses the filterStr, returning the number of filters.
1751 // Returns 0 if none or if there's a problem.
1752 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1753
1754 int WXDLLIMPEXP_BASE wxParseCommonDialogsFilter(const wxString& filterStr,
1755 wxArrayString& descriptions,
1756 wxArrayString& filters)
1757 {
1758 descriptions.Clear();
1759 filters.Clear();
1760
1761 wxString str(filterStr);
1762
1763 wxString description, filter;
1764 int pos = 0;
1765 while( pos != wxNOT_FOUND )
1766 {
1767 pos = str.Find(wxT('|'));
1768 if ( pos == wxNOT_FOUND )
1769 {
1770 // if there are no '|'s at all in the string just take the entire
1771 // string as filter and make description empty for later autocompletion
1772 if ( filters.IsEmpty() )
1773 {
1774 descriptions.Add(wxEmptyString);
1775 filters.Add(filterStr);
1776 }
1777 else
1778 {
1779 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1780 }
1781
1782 break;
1783 }
1784
1785 description = str.Left(pos);
1786 str = str.Mid(pos + 1);
1787 pos = str.Find(wxT('|'));
1788 if ( pos == wxNOT_FOUND )
1789 {
1790 filter = str;
1791 }
1792 else
1793 {
1794 filter = str.Left(pos);
1795 str = str.Mid(pos + 1);
1796 }
1797
1798 descriptions.Add(description);
1799 filters.Add(filter);
1800 }
1801
1802 #if defined(__WXMOTIF__)
1803 // split it so there is one wildcard per entry
1804 for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1805 {
1806 pos = filters[i].Find(wxT(';'));
1807 if (pos != wxNOT_FOUND)
1808 {
1809 // first split only filters
1810 descriptions.Insert(descriptions[i],i+1);
1811 filters.Insert(filters[i].Mid(pos+1),i+1);
1812 filters[i]=filters[i].Left(pos);
1813
1814 // autoreplace new filter in description with pattern:
1815 // C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1816 // cause split into:
1817 // C/C++ Files(*.cpp)|*.cpp
1818 // C/C++ Files(*.c;*.h)|*.c;*.h
1819 // and next iteration cause another split into:
1820 // C/C++ Files(*.cpp)|*.cpp
1821 // C/C++ Files(*.c)|*.c
1822 // C/C++ Files(*.h)|*.h
1823 for ( size_t k=i;k<i+2;k++ )
1824 {
1825 pos = descriptions[k].Find(filters[k]);
1826 if (pos != wxNOT_FOUND)
1827 {
1828 wxString before = descriptions[k].Left(pos);
1829 wxString after = descriptions[k].Mid(pos+filters[k].Len());
1830 pos = before.Find(_T('('),true);
1831 if (pos>before.Find(_T(')'),true))
1832 {
1833 before = before.Left(pos+1);
1834 before << filters[k];
1835 pos = after.Find(_T(')'));
1836 int pos1 = after.Find(_T('('));
1837 if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1838 {
1839 before << after.Mid(pos);
1840 descriptions[k] = before;
1841 }
1842 }
1843 }
1844 }
1845 }
1846 }
1847 #endif
1848
1849 // autocompletion
1850 for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1851 {
1852 if ( descriptions[j].empty() && !filters[j].empty() )
1853 {
1854 descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1855 }
1856 }
1857
1858 return filters.GetCount();
1859 }
1860
1861 #if defined(__WINDOWS__) && !(defined(__UNIX__) || defined(__OS2__))
1862 static bool wxCheckWin32Permission(const wxString& path, DWORD access)
1863 {
1864 // quoting the MSDN: "To obtain a handle to a directory, call the
1865 // CreateFile function with the FILE_FLAG_BACKUP_SEMANTICS flag", but this
1866 // doesn't work under Win9x/ME but then it's not needed there anyhow
1867 const DWORD dwAttr = ::GetFileAttributes(path.fn_str());
1868 if ( dwAttr == INVALID_FILE_ATTRIBUTES )
1869 {
1870 // file probably doesn't exist at all
1871 return false;
1872 }
1873
1874 if ( wxGetOsVersion() == wxOS_WINDOWS_9X )
1875 {
1876 // FAT directories always allow all access, even if they have the
1877 // readonly flag set, and FAT files can only be read-only
1878 return (dwAttr & FILE_ATTRIBUTE_DIRECTORY) ||
1879 (access != GENERIC_WRITE ||
1880 !(dwAttr & FILE_ATTRIBUTE_READONLY));
1881 }
1882
1883 HANDLE h = ::CreateFile
1884 (
1885 path.t_str(),
1886 access,
1887 FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
1888 NULL,
1889 OPEN_EXISTING,
1890 dwAttr & FILE_ATTRIBUTE_DIRECTORY
1891 ? FILE_FLAG_BACKUP_SEMANTICS
1892 : 0,
1893 NULL
1894 );
1895 if ( h != INVALID_HANDLE_VALUE )
1896 CloseHandle(h);
1897
1898 return h != INVALID_HANDLE_VALUE;
1899 }
1900 #endif // __WINDOWS__
1901
1902 bool wxIsWritable(const wxString &path)
1903 {
1904 #if defined( __UNIX__ ) || defined(__OS2__)
1905 // access() will take in count also symbolic links
1906 return wxAccess(path.c_str(), W_OK) == 0;
1907 #elif defined( __WINDOWS__ )
1908 return wxCheckWin32Permission(path, GENERIC_WRITE);
1909 #else
1910 wxUnusedVar(path);
1911 // TODO
1912 return false;
1913 #endif
1914 }
1915
1916 bool wxIsReadable(const wxString &path)
1917 {
1918 #if defined( __UNIX__ ) || defined(__OS2__)
1919 // access() will take in count also symbolic links
1920 return wxAccess(path.c_str(), R_OK) == 0;
1921 #elif defined( __WINDOWS__ )
1922 return wxCheckWin32Permission(path, GENERIC_READ);
1923 #else
1924 wxUnusedVar(path);
1925 // TODO
1926 return false;
1927 #endif
1928 }
1929
1930 bool wxIsExecutable(const wxString &path)
1931 {
1932 #if defined( __UNIX__ ) || defined(__OS2__)
1933 // access() will take in count also symbolic links
1934 return wxAccess(path.c_str(), X_OK) == 0;
1935 #elif defined( __WINDOWS__ )
1936 return wxCheckWin32Permission(path, GENERIC_EXECUTE);
1937 #else
1938 wxUnusedVar(path);
1939 // TODO
1940 return false;
1941 #endif
1942 }
1943
1944 // Return the type of an open file
1945 //
1946 // Some file types on some platforms seem seekable but in fact are not.
1947 // The main use of this function is to allow such cases to be detected
1948 // (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1949 //
1950 // This is important for the archive streams, which benefit greatly from
1951 // being able to seek on a stream, but which will produce corrupt archives
1952 // if they unknowingly seek on a non-seekable stream.
1953 //
1954 // wxFILE_KIND_DISK is a good catch all return value, since other values
1955 // disable features of the archive streams. Some other value must be returned
1956 // for a file type that appears seekable but isn't.
1957 //
1958 // Known examples:
1959 // * Pipes on Windows
1960 // * Files on VMS with a record format other than StreamLF
1961 //
1962 wxFileKind wxGetFileKind(int fd)
1963 {
1964 #if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1965 switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1966 {
1967 case FILE_TYPE_CHAR:
1968 return wxFILE_KIND_TERMINAL;
1969 case FILE_TYPE_DISK:
1970 return wxFILE_KIND_DISK;
1971 case FILE_TYPE_PIPE:
1972 return wxFILE_KIND_PIPE;
1973 }
1974
1975 return wxFILE_KIND_UNKNOWN;
1976
1977 #elif defined(__UNIX__)
1978 if (isatty(fd))
1979 return wxFILE_KIND_TERMINAL;
1980
1981 struct stat st;
1982 fstat(fd, &st);
1983
1984 if (S_ISFIFO(st.st_mode))
1985 return wxFILE_KIND_PIPE;
1986 if (!S_ISREG(st.st_mode))
1987 return wxFILE_KIND_UNKNOWN;
1988
1989 #if defined(__VMS__)
1990 if (st.st_fab_rfm != FAB$C_STMLF)
1991 return wxFILE_KIND_UNKNOWN;
1992 #endif
1993
1994 return wxFILE_KIND_DISK;
1995
1996 #else
1997 #define wxFILEKIND_STUB
1998 (void)fd;
1999 return wxFILE_KIND_DISK;
2000 #endif
2001 }
2002
2003 wxFileKind wxGetFileKind(FILE *fp)
2004 {
2005 // Note: The watcom rtl dll doesn't have fileno (the static lib does).
2006 // Should be fixed in version 1.4.
2007 #if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4)
2008 (void)fp;
2009 return wxFILE_KIND_DISK;
2010 #elif defined(__WINDOWS__) && !defined(__CYGWIN__) && !defined(__WATCOMC__) && !defined(__WINE__)
2011 return fp ? wxGetFileKind(_fileno(fp)) : wxFILE_KIND_UNKNOWN;
2012 #else
2013 return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN;
2014 #endif
2015 }
2016
2017
2018 //------------------------------------------------------------------------
2019 // wild character routines
2020 //------------------------------------------------------------------------
2021
2022 bool wxIsWild( const wxString& pattern )
2023 {
2024 for ( wxString::const_iterator p = pattern.begin(); p != pattern.end(); ++p )
2025 {
2026 switch ( (*p).GetValue() )
2027 {
2028 case wxT('?'):
2029 case wxT('*'):
2030 case wxT('['):
2031 case wxT('{'):
2032 return true;
2033
2034 case wxT('\\'):
2035 if ( ++p == pattern.end() )
2036 return false;
2037 }
2038 }
2039 return false;
2040 }
2041
2042 /*
2043 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
2044 *
2045 * The match procedure is public domain code (from ircII's reg.c)
2046 * but modified to suit our tastes (RN: No "%" syntax I guess)
2047 */
2048
2049 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
2050 {
2051 if (text.empty())
2052 {
2053 /* Match if both are empty. */
2054 return pat.empty();
2055 }
2056
2057 const wxChar *m = pat.c_str(),
2058 *n = text.c_str(),
2059 *ma = NULL,
2060 *na = NULL;
2061 int just = 0,
2062 acount = 0,
2063 count = 0;
2064
2065 if (dot_special && (*n == wxT('.')))
2066 {
2067 /* Never match so that hidden Unix files
2068 * are never found. */
2069 return false;
2070 }
2071
2072 for (;;)
2073 {
2074 if (*m == wxT('*'))
2075 {
2076 ma = ++m;
2077 na = n;
2078 just = 1;
2079 acount = count;
2080 }
2081 else if (*m == wxT('?'))
2082 {
2083 m++;
2084 if (!*n++)
2085 return false;
2086 }
2087 else
2088 {
2089 if (*m == wxT('\\'))
2090 {
2091 m++;
2092 /* Quoting "nothing" is a bad thing */
2093 if (!*m)
2094 return false;
2095 }
2096 if (!*m)
2097 {
2098 /*
2099 * If we are out of both strings or we just
2100 * saw a wildcard, then we can say we have a
2101 * match
2102 */
2103 if (!*n)
2104 return true;
2105 if (just)
2106 return true;
2107 just = 0;
2108 goto not_matched;
2109 }
2110 /*
2111 * We could check for *n == NULL at this point, but
2112 * since it's more common to have a character there,
2113 * check to see if they match first (m and n) and
2114 * then if they don't match, THEN we can check for
2115 * the NULL of n
2116 */
2117 just = 0;
2118 if (*m == *n)
2119 {
2120 m++;
2121 count++;
2122 n++;
2123 }
2124 else
2125 {
2126
2127 not_matched:
2128
2129 /*
2130 * If there are no more characters in the
2131 * string, but we still need to find another
2132 * character (*m != NULL), then it will be
2133 * impossible to match it
2134 */
2135 if (!*n)
2136 return false;
2137
2138 if (ma)
2139 {
2140 m = ma;
2141 n = ++na;
2142 count = acount;
2143 }
2144 else
2145 return false;
2146 }
2147 }
2148 }
2149 }
2150
2151 #ifdef __VISUALC__
2152 #pragma warning(default:4706) // assignment within conditional expression
2153 #endif // VC++
wxWidgets (Impactor)