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fix memory leak in wxScreenDC, fixes #13249
[wxWidgets.git] / src / common / filefn.cpp
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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 // and for cygwin_conv_path()
68 //
69 // note that it must be included after <windows.h>
70 #ifdef __GNUWIN32__
71 #ifdef __CYGWIN__
72 #include <sys/cygwin.h>
73 #include <cygwin/version.h>
74 #endif
75 #endif // __GNUWIN32__
76
77 // io.h is needed for _get_osfhandle()
78 // Already included by filefn.h for many Windows compilers
79 #if defined __MWERKS__ || defined __CYGWIN__
80 #include <io.h>
81 #endif
82#endif // __WINDOWS__
83
84#if defined(__VMS__)
85 #include <fab.h>
86#endif
87
88// TODO: Borland probably has _wgetcwd as well?
89#ifdef _MSC_VER
90 #define HAVE_WGETCWD
91#endif
92
93// ----------------------------------------------------------------------------
94// constants
95// ----------------------------------------------------------------------------
96
97#ifndef _MAXPATHLEN
98 #define _MAXPATHLEN 1024
99#endif
100
101// ----------------------------------------------------------------------------
102// private globals
103// ----------------------------------------------------------------------------
104
105#if WXWIN_COMPATIBILITY_2_8
106static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
107#endif
108
109#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
110//
111// VisualAge C++ V4.0 cannot have any external linkage const decs
112// in headers included by more than one primary source
113//
114const int wxInvalidOffset = -1;
115#endif
116
117// ============================================================================
118// implementation
119// ============================================================================
120
121// ----------------------------------------------------------------------------
122// wrappers around standard POSIX functions
123// ----------------------------------------------------------------------------
124
125#if wxUSE_UNICODE && defined __BORLANDC__ \
126 && __BORLANDC__ >= 0x550 && __BORLANDC__ <= 0x551
127
128// BCC 5.5 and 5.5.1 have a bug in _wopen where files are created read only
129// regardless of the mode parameter. This hack works around the problem by
130// setting the mode with _wchmod.
131//
132int wxCRT_OpenW(const wchar_t *pathname, int flags, mode_t mode)
133{
134 int moreflags = 0;
135
136 // we only want to fix the mode when the file is actually created, so
137 // when creating first try doing it O_EXCL so we can tell if the file
138 // was already there.
139 if ((flags & O_CREAT) && !(flags & O_EXCL) && (mode & wxS_IWUSR) != 0)
140 moreflags = O_EXCL;
141
142 int fd = _wopen(pathname, flags | moreflags, mode);
143
144 // the file was actually created and needs fixing
145 if (fd != -1 && (flags & O_CREAT) != 0 && (mode & wxS_IWUSR) != 0)
146 {
147 close(fd);
148 _wchmod(pathname, mode);
149 fd = _wopen(pathname, flags & ~(O_EXCL | O_CREAT));
150 }
151 // the open failed, but it may have been because the added O_EXCL stopped
152 // the opening of an existing file, so try again without.
153 else if (fd == -1 && moreflags != 0)
154 {
155 fd = _wopen(pathname, flags & ~O_CREAT);
156 }
157
158 return fd;
159}
160
161#endif
162
163// ----------------------------------------------------------------------------
164// wxPathList
165// ----------------------------------------------------------------------------
166
167bool wxPathList::Add(const wxString& path)
168{
169 // add a path separator to force wxFileName to interpret it always as a directory
170 // (i.e. if we are called with '/home/user' we want to consider it a folder and
171 // not, as wxFileName would consider, a filename).
172 wxFileName fn(path + wxFileName::GetPathSeparator());
173
174 // add only normalized relative/absolute paths
175 // NB: we won't do wxPATH_NORM_DOTS in order to avoid problems when trying to
176 // normalize paths which starts with ".." (which can be normalized only if
177 // we use also wxPATH_NORM_ABSOLUTE - which we don't want to use).
178 if (!fn.Normalize(wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS))
179 return false;
180
181 wxString toadd = fn.GetPath();
182 if (Index(toadd) == wxNOT_FOUND)
183 wxArrayString::Add(toadd); // do not add duplicates
184
185 return true;
186}
187
188void wxPathList::Add(const wxArrayString &arr)
189{
190 for (size_t j=0; j < arr.GetCount(); j++)
191 Add(arr[j]);
192}
193
194// Add paths e.g. from the PATH environment variable
195void wxPathList::AddEnvList (const wxString& WXUNUSED_IN_WINCE(envVariable))
196{
197 // No environment variables on WinCE
198#ifndef __WXWINCE__
199
200 // The space has been removed from the tokenizers, otherwise a
201 // path such as "C:\Program Files" would be split into 2 paths:
202 // "C:\Program" and "Files"; this is true for both Windows and Unix.
203
204 static const wxChar PATH_TOKS[] =
205#if defined(__WINDOWS__) || defined(__OS2__)
206 wxT(";"); // Don't separate with colon in DOS (used for drive)
207#else
208 wxT(":;");
209#endif
210
211 wxString val;
212 if ( wxGetEnv(envVariable, &val) )
213 {
214 // split into an array of string the value of the env var
215 wxArrayString arr = wxStringTokenize(val, PATH_TOKS);
216 WX_APPEND_ARRAY(*this, arr);
217 }
218#endif // !__WXWINCE__
219}
220
221// Given a full filename (with path), ensure that that file can
222// be accessed again USING FILENAME ONLY by adding the path
223// to the list if not already there.
224bool wxPathList::EnsureFileAccessible (const wxString& path)
225{
226 return Add(wxPathOnly(path));
227}
228
229#if WXWIN_COMPATIBILITY_2_6
230bool wxPathList::Member (const wxString& path) const
231{
232 return Index(path) != wxNOT_FOUND;
233}
234#endif
235
236wxString wxPathList::FindValidPath (const wxString& file) const
237{
238 // normalize the given string as it could be a path + a filename
239 // and not only a filename
240 wxFileName fn(file);
241 wxString strend;
242
243 // NB: normalize without making absolute otherwise calling this function with
244 // e.g. "b/c.txt" would result in removing the directory 'b' and the for loop
245 // below would only add to the paths of this list the 'c.txt' part when doing
246 // the existence checks...
247 // NB: we don't use wxPATH_NORM_DOTS here, too (see wxPathList::Add for more info)
248 if (!fn.Normalize(wxPATH_NORM_TILDE|wxPATH_NORM_LONG|wxPATH_NORM_ENV_VARS))
249 return wxEmptyString;
250
251 wxASSERT_MSG(!fn.IsDir(), wxT("Cannot search for directories; only for files"));
252 if (fn.IsAbsolute())
253 strend = fn.GetFullName(); // search for the file name and ignore the path part
254 else
255 strend = fn.GetFullPath();
256
257 for (size_t i=0; i<GetCount(); i++)
258 {
259 wxString strstart = Item(i);
260 if (!strstart.IsEmpty() && strstart.Last() != wxFileName::GetPathSeparator())
261 strstart += wxFileName::GetPathSeparator();
262
263 if (wxFileExists(strstart + strend))
264 return strstart + strend; // Found!
265 }
266
267 return wxEmptyString; // Not found
268}
269
270wxString wxPathList::FindAbsoluteValidPath (const wxString& file) const
271{
272 wxString f = FindValidPath(file);
273 if ( f.empty() || wxIsAbsolutePath(f) )
274 return f;
275
276 wxString buf = ::wxGetCwd();
277
278 if ( !wxEndsWithPathSeparator(buf) )
279 {
280 buf += wxFILE_SEP_PATH;
281 }
282 buf += f;
283
284 return buf;
285}
286
287// ----------------------------------------------------------------------------
288// miscellaneous global functions
289// ----------------------------------------------------------------------------
290
291#if WXWIN_COMPATIBILITY_2_8
292static inline wxChar* MYcopystring(const wxString& s)
293{
294 wxChar* copy = new wxChar[s.length() + 1];
295 return wxStrcpy(copy, s.c_str());
296}
297
298template<typename CharType>
299static inline CharType* MYcopystring(const CharType* s)
300{
301 CharType* copy = new CharType[wxStrlen(s) + 1];
302 return wxStrcpy(copy, s);
303}
304#endif
305
306
307bool
308wxFileExists (const wxString& filename)
309{
310 return wxFileName::FileExists(filename);
311}
312
313bool
314wxIsAbsolutePath (const wxString& filename)
315{
316 if (!filename.empty())
317 {
318 // Unix like or Windows
319 if (filename[0] == wxT('/'))
320 return true;
321#ifdef __VMS__
322 if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
323 return true;
324#endif
325#if defined(__WINDOWS__) || defined(__OS2__)
326 // MSDOS like
327 if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
328 return true;
329#endif
330 }
331 return false ;
332}
333
334#if WXWIN_COMPATIBILITY_2_8
335/*
336 * Strip off any extension (dot something) from end of file,
337 * IF one exists. Inserts zero into buffer.
338 *
339 */
340
341template<typename T>
342static void wxDoStripExtension(T *buffer)
343{
344 int len = wxStrlen(buffer);
345 int i = len-1;
346 while (i > 0)
347 {
348 if (buffer[i] == wxT('.'))
349 {
350 buffer[i] = 0;
351 break;
352 }
353 i --;
354 }
355}
356
357void wxStripExtension(char *buffer) { wxDoStripExtension(buffer); }
358void wxStripExtension(wchar_t *buffer) { wxDoStripExtension(buffer); }
359
360void wxStripExtension(wxString& buffer)
361{
362 buffer = wxFileName::StripExtension(buffer);
363}
364
365// Destructive removal of /./ and /../ stuff
366template<typename CharType>
367static CharType *wxDoRealPath (CharType *path)
368{
369 static const CharType SEP = wxFILE_SEP_PATH;
370#ifdef __WXMSW__
371 wxUnix2DosFilename(path);
372#endif
373 if (path[0] && path[1]) {
374 /* MATTHEW: special case "/./x" */
375 CharType *p;
376 if (path[2] == SEP && path[1] == wxT('.'))
377 p = &path[0];
378 else
379 p = &path[2];
380 for (; *p; p++)
381 {
382 if (*p == SEP)
383 {
384 if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
385 {
386 CharType *q;
387 for (q = p - 1; q >= path && *q != SEP; q--)
388 {
389 // Empty
390 }
391
392 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
393 && (q - 1 <= path || q[-1] != SEP))
394 {
395 wxStrcpy (q, p + 3);
396 if (path[0] == wxT('\0'))
397 {
398 path[0] = SEP;
399 path[1] = wxT('\0');
400 }
401#if defined(__WXMSW__) || defined(__OS2__)
402 /* Check that path[2] is NULL! */
403 else if (path[1] == wxT(':') && !path[2])
404 {
405 path[2] = SEP;
406 path[3] = wxT('\0');
407 }
408#endif
409 p = q - 1;
410 }
411 }
412 else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
413 wxStrcpy (p, p + 2);
414 }
415 }
416 }
417 return path;
418}
419
420char *wxRealPath(char *path)
421{
422 return wxDoRealPath(path);
423}
424
425wchar_t *wxRealPath(wchar_t *path)
426{
427 return wxDoRealPath(path);
428}
429
430wxString wxRealPath(const wxString& path)
431{
432 wxChar *buf1=MYcopystring(path);
433 wxChar *buf2=wxRealPath(buf1);
434 wxString buf(buf2);
435 delete [] buf1;
436 return buf;
437}
438
439
440// Must be destroyed
441wxChar *wxCopyAbsolutePath(const wxString& filename)
442{
443 if (filename.empty())
444 return NULL;
445
446 if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename)))
447 {
448 wxString buf = ::wxGetCwd();
449 wxChar ch = buf.Last();
450#ifdef __WXMSW__
451 if (ch != wxT('\\') && ch != wxT('/'))
452 buf << wxT("\\");
453#else
454 if (ch != wxT('/'))
455 buf << wxT("/");
456#endif
457 buf << wxFileFunctionsBuffer;
458 buf = wxRealPath( buf );
459 return MYcopystring( buf );
460 }
461 return MYcopystring( wxFileFunctionsBuffer );
462}
463
464/*-
465 Handles:
466 ~/ => home dir
467 ~user/ => user's home dir
468 If the environment variable a = "foo" and b = "bar" then:
469 Unix:
470 $a => foo
471 $a$b => foobar
472 $a.c => foo.c
473 xxx$a => xxxfoo
474 ${a}! => foo!
475 $(b)! => bar!
476 \$a => \$a
477 MSDOS:
478 $a ==> $a
479 $(a) ==> foo
480 $(a)$b ==> foo$b
481 $(a)$(b)==> foobar
482 test.$$ ==> test.$$
483 */
484
485/* input name in name, pathname output to buf. */
486
487template<typename CharType>
488static CharType *wxDoExpandPath(CharType *buf, const wxString& name)
489{
490 register CharType *d, *s, *nm;
491 CharType lnm[_MAXPATHLEN];
492 int q;
493
494 // Some compilers don't like this line.
495// const CharType trimchars[] = wxT("\n \t");
496
497 CharType trimchars[4];
498 trimchars[0] = wxT('\n');
499 trimchars[1] = wxT(' ');
500 trimchars[2] = wxT('\t');
501 trimchars[3] = 0;
502
503 static const CharType SEP = wxFILE_SEP_PATH;
504#ifdef __WXMSW__
505 //wxUnix2DosFilename(path);
506#endif
507
508 buf[0] = wxT('\0');
509 if (name.empty())
510 return buf;
511 nm = ::MYcopystring(static_cast<const CharType*>(name.c_str())); // Make a scratch copy
512 CharType *nm_tmp = nm;
513
514 /* Skip leading whitespace and cr */
515 while (wxStrchr(trimchars, *nm) != NULL)
516 nm++;
517 /* And strip off trailing whitespace and cr */
518 s = nm + (q = wxStrlen(nm)) - 1;
519 while (q-- && wxStrchr(trimchars, *s) != NULL)
520 *s = wxT('\0');
521
522 s = nm;
523 d = lnm;
524#ifdef __WXMSW__
525 q = FALSE;
526#else
527 q = nm[0] == wxT('\\') && nm[1] == wxT('~');
528#endif
529
530 /* Expand inline environment variables */
531#ifdef __VISAGECPP__
532 while (*d)
533 {
534 *d++ = *s;
535 if(*s == wxT('\\'))
536 {
537 *(d - 1) = *++s;
538 if (*d)
539 {
540 s++;
541 continue;
542 }
543 else
544 break;
545 }
546 else
547#else
548 while ((*d++ = *s) != 0) {
549# ifndef __WXMSW__
550 if (*s == wxT('\\')) {
551 if ((*(d - 1) = *++s)!=0) {
552 s++;
553 continue;
554 } else
555 break;
556 } else
557# endif
558#endif
559 // No env variables on WinCE
560#ifndef __WXWINCE__
561#ifdef __WXMSW__
562 if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
563#else
564 if (*s++ == wxT('$'))
565#endif
566 {
567 register CharType *start = d;
568 register int braces = (*s == wxT('{') || *s == wxT('('));
569 register CharType *value;
570 while ((*d++ = *s) != 0)
571 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
572 break;
573 else
574 s++;
575 *--d = 0;
576 value = wxGetenv(braces ? start + 1 : start);
577 if (value) {
578 for ((d = start - 1); (*d++ = *value++) != 0;)
579 {
580 // Empty
581 }
582
583 d--;
584 if (braces && *s)
585 s++;
586 }
587 }
588#endif
589 // __WXWINCE__
590 }
591
592 /* Expand ~ and ~user */
593 wxString homepath;
594 nm = lnm;
595 if (nm[0] == wxT('~') && !q)
596 {
597 /* prefix ~ */
598 if (nm[1] == SEP || nm[1] == 0)
599 { /* ~/filename */
600 homepath = wxGetUserHome(wxEmptyString);
601 if (!homepath.empty()) {
602 s = (CharType*)(const CharType*)homepath.c_str();
603 if (*++nm)
604 nm++;
605 }
606 } else
607 { /* ~user/filename */
608 register CharType *nnm;
609 for (s = nm; *s && *s != SEP; s++)
610 {
611 // Empty
612 }
613 int was_sep; /* MATTHEW: Was there a separator, or NULL? */
614 was_sep = (*s == SEP);
615 nnm = *s ? s + 1 : s;
616 *s = 0;
617 homepath = wxGetUserHome(wxString(nm + 1));
618 if (homepath.empty())
619 {
620 if (was_sep) /* replace only if it was there: */
621 *s = SEP;
622 s = NULL;
623 }
624 else
625 {
626 nm = nnm;
627 s = (CharType*)(const CharType*)homepath.c_str();
628 }
629 }
630 }
631
632 d = buf;
633 if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
634 /* Copy home dir */
635 while (wxT('\0') != (*d++ = *s++))
636 /* loop */;
637 // Handle root home
638 if (d - 1 > buf && *(d - 2) != SEP)
639 *(d - 1) = SEP;
640 }
641 s = nm;
642 while ((*d++ = *s++) != 0)
643 {
644 // Empty
645 }
646 delete[] nm_tmp; // clean up alloc
647 /* Now clean up the buffer */
648 return wxRealPath(buf);
649}
650
651char *wxExpandPath(char *buf, const wxString& name)
652{
653 return wxDoExpandPath(buf, name);
654}
655
656wchar_t *wxExpandPath(wchar_t *buf, const wxString& name)
657{
658 return wxDoExpandPath(buf, name);
659}
660
661
662/* Contract Paths to be build upon an environment variable
663 component:
664
665 example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
666
667 The call wxExpandPath can convert these back!
668 */
669wxChar *
670wxContractPath (const wxString& filename,
671 const wxString& WXUNUSED_IN_WINCE(envname),
672 const wxString& user)
673{
674 static wxChar dest[_MAXPATHLEN];
675
676 if (filename.empty())
677 return NULL;
678
679 wxStrcpy (dest, filename);
680#ifdef __WXMSW__
681 wxUnix2DosFilename(dest);
682#endif
683
684 // Handle environment
685 wxString val;
686#ifndef __WXWINCE__
687 wxChar *tcp;
688 if (!envname.empty() && !(val = wxGetenv (envname)).empty() &&
689 (tcp = wxStrstr (dest, val)) != NULL)
690 {
691 wxStrcpy (wxFileFunctionsBuffer, tcp + val.length());
692 *tcp++ = wxT('$');
693 *tcp++ = wxT('{');
694 wxStrcpy (tcp, envname);
695 wxStrcat (tcp, wxT("}"));
696 wxStrcat (tcp, wxFileFunctionsBuffer);
697 }
698#endif
699
700 // Handle User's home (ignore root homes!)
701 val = wxGetUserHome (user);
702 if (val.empty())
703 return dest;
704
705 const size_t len = val.length();
706 if (len <= 2)
707 return dest;
708
709 if (wxStrncmp(dest, val, len) == 0)
710 {
711 wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
712 if (!user.empty())
713 wxStrcat(wxFileFunctionsBuffer, user);
714 wxStrcat(wxFileFunctionsBuffer, dest + len);
715 wxStrcpy (dest, wxFileFunctionsBuffer);
716 }
717
718 return dest;
719}
720
721#endif // #if WXWIN_COMPATIBILITY_2_8
722
723// Return just the filename, not the path (basename)
724wxChar *wxFileNameFromPath (wxChar *path)
725{
726 wxString p = path;
727 wxString n = wxFileNameFromPath(p);
728
729 return path + p.length() - n.length();
730}
731
732wxString wxFileNameFromPath (const wxString& path)
733{
734 return wxFileName(path).GetFullName();
735}
736
737// Return just the directory, or NULL if no directory
738wxChar *
739wxPathOnly (wxChar *path)
740{
741 if (path && *path)
742 {
743 static wxChar buf[_MAXPATHLEN];
744
745 // Local copy
746 wxStrcpy (buf, path);
747
748 int l = wxStrlen(path);
749 int i = l - 1;
750
751 // Search backward for a backward or forward slash
752 while (i > -1)
753 {
754 // Unix like or Windows
755 if (path[i] == wxT('/') || path[i] == wxT('\\'))
756 {
757 buf[i] = 0;
758 return buf;
759 }
760#ifdef __VMS__
761 if (path[i] == wxT(']'))
762 {
763 buf[i+1] = 0;
764 return buf;
765 }
766#endif
767 i --;
768 }
769
770#if defined(__WXMSW__) || defined(__OS2__)
771 // Try Drive specifier
772 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
773 {
774 // A:junk --> A:. (since A:.\junk Not A:\junk)
775 buf[2] = wxT('.');
776 buf[3] = wxT('\0');
777 return buf;
778 }
779#endif
780 }
781 return NULL;
782}
783
784// Return just the directory, or NULL if no directory
785wxString wxPathOnly (const wxString& path)
786{
787 if (!path.empty())
788 {
789 wxChar buf[_MAXPATHLEN];
790
791 // Local copy
792 wxStrcpy(buf, path);
793
794 int l = path.length();
795 int i = l - 1;
796
797 // Search backward for a backward or forward slash
798 while (i > -1)
799 {
800 // Unix like or Windows
801 if (path[i] == wxT('/') || path[i] == wxT('\\'))
802 {
803 // Don't return an empty string
804 if (i == 0)
805 i ++;
806 buf[i] = 0;
807 return wxString(buf);
808 }
809#ifdef __VMS__
810 if (path[i] == wxT(']'))
811 {
812 buf[i+1] = 0;
813 return wxString(buf);
814 }
815#endif
816 i --;
817 }
818
819#if defined(__WXMSW__) || defined(__OS2__)
820 // Try Drive specifier
821 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
822 {
823 // A:junk --> A:. (since A:.\junk Not A:\junk)
824 buf[2] = wxT('.');
825 buf[3] = wxT('\0');
826 return wxString(buf);
827 }
828#endif
829 }
830 return wxEmptyString;
831}
832
833// Utility for converting delimiters in DOS filenames to UNIX style
834// and back again - or we get nasty problems with delimiters.
835// Also, convert to lower case, since case is significant in UNIX.
836
837#if defined(__WXMAC__) && !defined(__WXOSX_IPHONE__)
838
839#define kDefaultPathStyle kCFURLPOSIXPathStyle
840
841wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
842{
843 CFURLRef fullURLRef;
844 fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
845 if ( additionalPathComponent )
846 {
847 CFURLRef parentURLRef = fullURLRef ;
848 fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
849 additionalPathComponent,false);
850 CFRelease( parentURLRef ) ;
851 }
852 CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
853 CFRelease( fullURLRef ) ;
854 CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfString);
855 CFRelease( cfString );
856 CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
857 return wxCFStringRef(cfMutableString).AsString();
858}
859
860OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
861{
862 OSStatus err = noErr ;
863 CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, wxCFStringRef(path));
864 CFStringNormalize(cfMutableString,kCFStringNormalizationFormD);
865 CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfMutableString , kDefaultPathStyle, false);
866 CFRelease( cfMutableString );
867 if ( NULL != url )
868 {
869 if ( CFURLGetFSRef(url, fsRef) == false )
870 err = fnfErr ;
871 CFRelease( url ) ;
872 }
873 else
874 {
875 err = fnfErr ;
876 }
877 return err ;
878}
879
880wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
881{
882 CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
883 uniname->unicode,
884 uniname->length );
885 CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfname);
886 CFRelease( cfname );
887 CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
888 return wxCFStringRef(cfMutableString).AsString() ;
889}
890
891#ifndef __LP64__
892
893wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
894{
895 FSRef fsRef ;
896 if ( FSpMakeFSRef( spec , &fsRef) == noErr )
897 {
898 return wxMacFSRefToPath( &fsRef ) ;
899 }
900 return wxEmptyString ;
901}
902
903void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
904{
905 OSStatus err = noErr;
906 FSRef fsRef;
907 wxMacPathToFSRef( path , &fsRef );
908 err = FSGetCatalogInfo(&fsRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
909 verify_noerr( err );
910}
911#endif
912
913#endif // __WXMAC__
914
915
916#if WXWIN_COMPATIBILITY_2_8
917
918template<typename T>
919static void wxDoDos2UnixFilename(T *s)
920{
921 if (s)
922 while (*s)
923 {
924 if (*s == wxT('\\'))
925 *s = wxT('/');
926#ifdef __WXMSW__
927 else
928 *s = wxTolower(*s); // Case INDEPENDENT
929#endif
930 s++;
931 }
932}
933
934void wxDos2UnixFilename(char *s) { wxDoDos2UnixFilename(s); }
935void wxDos2UnixFilename(wchar_t *s) { wxDoDos2UnixFilename(s); }
936
937template<typename T>
938static void
939#if defined(__WXMSW__) || defined(__OS2__)
940wxDoUnix2DosFilename(T *s)
941#else
942wxDoUnix2DosFilename(T *WXUNUSED(s) )
943#endif
944{
945// Yes, I really mean this to happen under DOS only! JACS
946#if defined(__WXMSW__) || defined(__OS2__)
947 if (s)
948 while (*s)
949 {
950 if (*s == wxT('/'))
951 *s = wxT('\\');
952 s++;
953 }
954#endif
955}
956
957void wxUnix2DosFilename(char *s) { wxDoUnix2DosFilename(s); }
958void wxUnix2DosFilename(wchar_t *s) { wxDoUnix2DosFilename(s); }
959
960#endif // #if WXWIN_COMPATIBILITY_2_8
961
962// Concatenate two files to form third
963bool
964wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
965{
966#if wxUSE_FILE
967
968 wxFile in1(file1), in2(file2);
969 wxTempFile out(file3);
970
971 if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
972 return false;
973
974 ssize_t ofs;
975 unsigned char buf[1024];
976
977 for( int i=0; i<2; i++)
978 {
979 wxFile *in = i==0 ? &in1 : &in2;
980 do{
981 if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
982 if ( ofs > 0 )
983 if ( !out.Write(buf,ofs) )
984 return false;
985 } while ( ofs == (ssize_t)WXSIZEOF(buf) );
986 }
987
988 return out.Commit();
989
990#else
991
992 wxUnusedVar(file1);
993 wxUnusedVar(file2);
994 wxUnusedVar(file3);
995 return false;
996
997#endif
998}
999
1000// helper of generic implementation of wxCopyFile()
1001#if !(defined(__WIN32__) || defined(__OS2__) || defined(__PALMOS__)) && \
1002 wxUSE_FILE
1003
1004static bool
1005wxDoCopyFile(wxFile& fileIn,
1006 const wxStructStat& fbuf,
1007 const wxString& filenameDst,
1008 bool overwrite)
1009{
1010 // reset the umask as we want to create the file with exactly the same
1011 // permissions as the original one
1012 wxCHANGE_UMASK(0);
1013
1014 // create file2 with the same permissions than file1 and open it for
1015 // writing
1016
1017 wxFile fileOut;
1018 if ( !fileOut.Create(filenameDst, overwrite, fbuf.st_mode & 0777) )
1019 return false;
1020
1021 // copy contents of file1 to file2
1022 char buf[4096];
1023 for ( ;; )
1024 {
1025 ssize_t count = fileIn.Read(buf, WXSIZEOF(buf));
1026 if ( count == wxInvalidOffset )
1027 return false;
1028
1029 // end of file?
1030 if ( !count )
1031 break;
1032
1033 if ( fileOut.Write(buf, count) < (size_t)count )
1034 return false;
1035 }
1036
1037 // we can expect fileIn to be closed successfully, but we should ensure
1038 // that fileOut was closed as some write errors (disk full) might not be
1039 // detected before doing this
1040 return fileIn.Close() && fileOut.Close();
1041}
1042
1043#endif // generic implementation of wxCopyFile
1044
1045// Copy files
1046bool
1047wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
1048{
1049#if defined(__WIN32__) && !defined(__WXMICROWIN__)
1050 // CopyFile() copies file attributes and modification time too, so use it
1051 // instead of our code if available
1052 //
1053 // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
1054 if ( !::CopyFile(file1.t_str(), file2.t_str(), !overwrite) )
1055 {
1056 wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
1057 file1.c_str(), file2.c_str());
1058
1059 return false;
1060 }
1061#elif defined(__OS2__)
1062 if ( ::DosCopy(file1.c_str(), file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
1063 return false;
1064#elif defined(__PALMOS__)
1065 // TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
1066 return false;
1067#elif wxUSE_FILE // !Win32
1068
1069 wxStructStat fbuf;
1070 // get permissions of file1
1071 if ( wxStat( file1, &fbuf) != 0 )
1072 {
1073 // the file probably doesn't exist or we haven't the rights to read
1074 // from it anyhow
1075 wxLogSysError(_("Impossible to get permissions for file '%s'"),
1076 file1.c_str());
1077 return false;
1078 }
1079
1080 // open file1 for reading
1081 wxFile fileIn(file1, wxFile::read);
1082 if ( !fileIn.IsOpened() )
1083 return false;
1084
1085 // remove file2, if it exists. This is needed for creating
1086 // file2 with the correct permissions in the next step
1087 if ( wxFileExists(file2) && (!overwrite || !wxRemoveFile(file2)))
1088 {
1089 wxLogSysError(_("Impossible to overwrite the file '%s'"),
1090 file2.c_str());
1091 return false;
1092 }
1093
1094 wxDoCopyFile(fileIn, fbuf, file2, overwrite);
1095
1096#if defined(__WXMAC__) || defined(__WXCOCOA__)
1097 // copy the resource fork of the file too if it's present
1098 wxString pathRsrcOut;
1099 wxFile fileRsrcIn;
1100
1101 {
1102 // suppress error messages from this block as resource forks don't have
1103 // to exist
1104 wxLogNull noLog;
1105
1106 // it's not enough to check for file existence: it always does on HFS
1107 // but is empty for files without resources
1108 if ( fileRsrcIn.Open(file1 + wxT("/..namedfork/rsrc")) &&
1109 fileRsrcIn.Length() > 0 )
1110 {
1111 // we must be using HFS or another filesystem with resource fork
1112 // support, suppose that destination file system also is HFS[-like]
1113 pathRsrcOut = file2 + wxT("/..namedfork/rsrc");
1114 }
1115 else // check if we have resource fork in separate file (non-HFS case)
1116 {
1117 wxFileName fnRsrc(file1);
1118 fnRsrc.SetName(wxT("._") + fnRsrc.GetName());
1119
1120 fileRsrcIn.Close();
1121 if ( fileRsrcIn.Open( fnRsrc.GetFullPath() ) )
1122 {
1123 fnRsrc = file2;
1124 fnRsrc.SetName(wxT("._") + fnRsrc.GetName());
1125
1126 pathRsrcOut = fnRsrc.GetFullPath();
1127 }
1128 }
1129 }
1130
1131 if ( !pathRsrcOut.empty() )
1132 {
1133 if ( !wxDoCopyFile(fileRsrcIn, fbuf, pathRsrcOut, overwrite) )
1134 return false;
1135 }
1136#endif // wxMac || wxCocoa
1137
1138#if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1139 // no chmod in VA. Should be some permission API for HPFS386 partitions
1140 // however
1141 if ( chmod(file2.fn_str(), fbuf.st_mode) != 0 )
1142 {
1143 wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1144 file2.c_str());
1145 return false;
1146 }
1147#endif // OS/2 || Mac
1148
1149#else // !Win32 && ! wxUSE_FILE
1150
1151 // impossible to simulate with wxWidgets API
1152 wxUnusedVar(file1);
1153 wxUnusedVar(file2);
1154 wxUnusedVar(overwrite);
1155 return false;
1156
1157#endif // __WXMSW__ && __WIN32__
1158
1159 return true;
1160}
1161
1162bool
1163wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite)
1164{
1165 if ( !overwrite && wxFileExists(file2) )
1166 {
1167 wxLogSysError
1168 (
1169 _("Failed to rename the file '%s' to '%s' because the destination file already exists."),
1170 file1.c_str(), file2.c_str()
1171 );
1172
1173 return false;
1174 }
1175
1176#if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
1177 // Normal system call
1178 if ( wxRename (file1, file2) == 0 )
1179 return true;
1180#endif
1181
1182 // Try to copy
1183 if (wxCopyFile(file1, file2, overwrite)) {
1184 wxRemoveFile(file1);
1185 return true;
1186 }
1187 // Give up
1188 return false;
1189}
1190
1191bool wxRemoveFile(const wxString& file)
1192{
1193#if defined(__VISUALC__) \
1194 || defined(__BORLANDC__) \
1195 || defined(__WATCOMC__) \
1196 || defined(__DMC__) \
1197 || defined(__GNUWIN32__) \
1198 || (defined(__MWERKS__) && defined(__MSL__))
1199 int res = wxRemove(file);
1200#elif defined(__WXMAC__)
1201 int res = unlink(file.fn_str());
1202#elif defined(__WXPALMOS__)
1203 int res = 1;
1204 // TODO with VFSFileDelete()
1205#else
1206 int res = unlink(file.fn_str());
1207#endif
1208
1209 return res == 0;
1210}
1211
1212bool wxMkdir(const wxString& dir, int perm)
1213{
1214#if defined(__WXPALMOS__)
1215 return false;
1216#else
1217#if defined(__WXMAC__) && !defined(__UNIX__)
1218 if ( mkdir(dir.fn_str(), 0) != 0 )
1219
1220 // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1221 // for the GNU compiler
1222#elif (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || \
1223 (defined(__GNUWIN32__) && !defined(__MINGW32__)) || \
1224 defined(__WINE__) || defined(__WXMICROWIN__)
1225 const wxChar *dirname = dir.c_str();
1226 #if defined(MSVCRT)
1227 wxUnusedVar(perm);
1228 if ( mkdir(wxFNCONV(dirname)) != 0 )
1229 #else
1230 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1231 #endif
1232#elif defined(__OS2__)
1233 wxUnusedVar(perm);
1234 if (::DosCreateDir(dir.c_str(), NULL) != 0) // enhance for EAB's??
1235#elif defined(__DOS__)
1236 const wxChar *dirname = dir.c_str();
1237 #if defined(__WATCOMC__)
1238 (void)perm;
1239 if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1240 #elif defined(__DJGPP__)
1241 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1242 #else
1243 #error "Unsupported DOS compiler!"
1244 #endif
1245#else // !MSW, !DOS and !OS/2 VAC++
1246 wxUnusedVar(perm);
1247 #ifdef __WXWINCE__
1248 if ( CreateDirectory(dir.fn_str(), NULL) == 0 )
1249 #else
1250 if ( wxMkDir(dir.fn_str()) != 0 )
1251 #endif
1252#endif // !MSW/MSW
1253 {
1254 wxLogSysError(_("Directory '%s' couldn't be created"), dir);
1255 return false;
1256 }
1257
1258 return true;
1259#endif // PALMOS/!PALMOS
1260}
1261
1262bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1263{
1264#if defined(__VMS__)
1265 return false; //to be changed since rmdir exists in VMS7.x
1266#elif defined(__WXPALMOS__)
1267 // TODO with VFSFileRename()
1268 return false;
1269#else
1270 #if defined(__OS2__)
1271 if ( ::DosDeleteDir(dir.c_str()) != 0 )
1272 #elif defined(__WXWINCE__)
1273 if ( RemoveDirectory(dir.fn_str()) == 0 )
1274 #else
1275 if ( wxRmDir(dir.fn_str()) != 0 )
1276 #endif
1277 {
1278 wxLogSysError(_("Directory '%s' couldn't be deleted"), dir);
1279 return false;
1280 }
1281
1282 return true;
1283#endif // PALMOS/!PALMOS
1284}
1285
1286// does the path exists? (may have or not '/' or '\\' at the end)
1287bool wxDirExists(const wxString& pathName)
1288{
1289 return wxFileName::DirExists(pathName);
1290}
1291
1292#if WXWIN_COMPATIBILITY_2_8
1293
1294// Get a temporary filename, opening and closing the file.
1295wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1296{
1297 wxString filename;
1298 if ( !wxGetTempFileName(prefix, filename) )
1299 return NULL;
1300
1301 if ( buf )
1302#ifdef _PACC_VER
1303 // work around the PalmOS pacc compiler bug
1304 wxStrcpy(buf, filename.data());
1305#else
1306 wxStrcpy(buf, filename);
1307#endif
1308 else
1309 buf = MYcopystring(filename);
1310
1311 return buf;
1312}
1313
1314bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1315{
1316#if wxUSE_FILE
1317 buf = wxFileName::CreateTempFileName(prefix);
1318
1319 return !buf.empty();
1320#else // !wxUSE_FILE
1321 wxUnusedVar(prefix);
1322 wxUnusedVar(buf);
1323
1324 return false;
1325#endif // wxUSE_FILE/!wxUSE_FILE
1326}
1327
1328#endif // #if WXWIN_COMPATIBILITY_2_8
1329
1330// Get first file name matching given wild card.
1331
1332static wxDir *gs_dir = NULL;
1333static wxString gs_dirPath;
1334
1335wxString wxFindFirstFile(const wxString& spec, int flags)
1336{
1337 wxFileName::SplitPath(spec, &gs_dirPath, NULL, NULL);
1338 if ( gs_dirPath.empty() )
1339 gs_dirPath = wxT(".");
1340 if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1341 gs_dirPath << wxFILE_SEP_PATH;
1342
1343 delete gs_dir; // can be NULL, this is ok
1344 gs_dir = new wxDir(gs_dirPath);
1345
1346 if ( !gs_dir->IsOpened() )
1347 {
1348 wxLogSysError(_("Cannot enumerate files '%s'"), spec);
1349 return wxEmptyString;
1350 }
1351
1352 int dirFlags;
1353 switch (flags)
1354 {
1355 case wxDIR: dirFlags = wxDIR_DIRS; break;
1356 case wxFILE: dirFlags = wxDIR_FILES; break;
1357 default: dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1358 }
1359
1360 wxString result;
1361 gs_dir->GetFirst(&result, wxFileNameFromPath(spec), dirFlags);
1362 if ( result.empty() )
1363 {
1364 wxDELETE(gs_dir);
1365 return result;
1366 }
1367
1368 return gs_dirPath + result;
1369}
1370
1371wxString wxFindNextFile()
1372{
1373 wxCHECK_MSG( gs_dir, "", "You must call wxFindFirstFile before!" );
1374
1375 wxString result;
1376 gs_dir->GetNext(&result);
1377
1378 if ( result.empty() )
1379 {
1380 wxDELETE(gs_dir);
1381 return result;
1382 }
1383
1384 return gs_dirPath + result;
1385}
1386
1387
1388// Get current working directory.
1389// If buf is NULL, allocates space using new, else copies into buf.
1390// wxGetWorkingDirectory() is obsolete, use wxGetCwd()
1391// wxDoGetCwd() is their common core to be moved
1392// to wxGetCwd() once wxGetWorkingDirectory() will be removed.
1393// Do not expose wxDoGetCwd in headers!
1394
1395wxChar *wxDoGetCwd(wxChar *buf, int sz)
1396{
1397#if defined(__WXPALMOS__)
1398 // TODO
1399 if(buf && sz>0) buf[0] = wxT('\0');
1400 return buf;
1401#elif defined(__WXWINCE__)
1402 // TODO
1403 if(buf && sz>0) buf[0] = wxT('\0');
1404 return buf;
1405#else
1406 if ( !buf )
1407 {
1408 buf = new wxChar[sz + 1];
1409 }
1410
1411 bool ok wxDUMMY_INITIALIZE(false);
1412
1413 // for the compilers which have Unicode version of _getcwd(), call it
1414 // directly, for the others call the ANSI version and do the translation
1415#if !wxUSE_UNICODE
1416 #define cbuf buf
1417#else // wxUSE_UNICODE
1418 bool needsANSI = true;
1419
1420 #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1421 char cbuf[_MAXPATHLEN];
1422 #endif
1423
1424 #ifdef HAVE_WGETCWD
1425 #if wxUSE_UNICODE_MSLU
1426 if ( wxGetOsVersion() != wxOS_WINDOWS_9X )
1427 #else
1428 char *cbuf = NULL; // never really used because needsANSI will always be false
1429 #endif
1430 {
1431 ok = _wgetcwd(buf, sz) != NULL;
1432 needsANSI = false;
1433 }
1434 #endif
1435
1436 if ( needsANSI )
1437#endif // wxUSE_UNICODE
1438 {
1439 #if defined(_MSC_VER) || defined(__MINGW32__)
1440 ok = _getcwd(cbuf, sz) != NULL;
1441 #elif defined(__OS2__)
1442 APIRET rc;
1443 ULONG ulDriveNum = 0;
1444 ULONG ulDriveMap = 0;
1445 rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1446 ok = rc == 0;
1447 if (ok)
1448 {
1449 sz -= 3;
1450 rc = ::DosQueryCurrentDir( 0 // current drive
1451 ,(PBYTE)cbuf + 3
1452 ,(PULONG)&sz
1453 );
1454 cbuf[0] = char('A' + (ulDriveNum - 1));
1455 cbuf[1] = ':';
1456 cbuf[2] = '\\';
1457 ok = rc == 0;
1458 }
1459 #else // !Win32/VC++ !Mac !OS2
1460 ok = getcwd(cbuf, sz) != NULL;
1461 #endif // platform
1462
1463 #if wxUSE_UNICODE
1464 // finally convert the result to Unicode if needed
1465 wxConvFile.MB2WC(buf, cbuf, sz);
1466 #endif // wxUSE_UNICODE
1467 }
1468
1469 if ( !ok )
1470 {
1471 wxLogSysError(_("Failed to get the working directory"));
1472
1473 // VZ: the old code used to return "." on error which didn't make any
1474 // sense at all to me - empty string is a better error indicator
1475 // (NULL might be even better but I'm afraid this could lead to
1476 // problems with the old code assuming the return is never NULL)
1477 buf[0] = wxT('\0');
1478 }
1479 else // ok, but we might need to massage the path into the right format
1480 {
1481#ifdef __DJGPP__
1482 // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1483 // with / deliminers. We don't like that.
1484 for (wxChar *ch = buf; *ch; ch++)
1485 {
1486 if (*ch == wxT('/'))
1487 *ch = wxT('\\');
1488 }
1489#endif // __DJGPP__
1490
1491// MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1492// he needs Unix as opposed to Win32 pathnames
1493#if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1494 // another example of DOS/Unix mix (Cygwin)
1495 wxString pathUnix = buf;
1496#if wxUSE_UNICODE
1497 #if CYGWIN_VERSION_DLL_MAJOR >= 1007
1498 cygwin_conv_path(CCP_POSIX_TO_WIN_W, pathUnix.mb_str(wxConvFile), buf, sz);
1499 #else
1500 char bufA[_MAXPATHLEN];
1501 cygwin_conv_to_full_win32_path(pathUnix.mb_str(wxConvFile), bufA);
1502 wxConvFile.MB2WC(buf, bufA, sz);
1503 #endif
1504#else
1505 #if CYGWIN_VERSION_DLL_MAJOR >= 1007
1506 cygwin_conv_path(CCP_POSIX_TO_WIN_A, pathUnix, buf, sz);
1507 #else
1508 cygwin_conv_to_full_win32_path(pathUnix, buf);
1509 #endif
1510#endif // wxUSE_UNICODE
1511#endif // __CYGWIN__
1512 }
1513
1514 return buf;
1515
1516#if !wxUSE_UNICODE
1517 #undef cbuf
1518#endif
1519
1520#endif
1521 // __WXWINCE__
1522}
1523
1524#if WXWIN_COMPATIBILITY_2_6
1525wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1526{
1527 return wxDoGetCwd(buf,sz);
1528}
1529#endif // WXWIN_COMPATIBILITY_2_6
1530
1531wxString wxGetCwd()
1532{
1533 wxString str;
1534 wxDoGetCwd(wxStringBuffer(str, _MAXPATHLEN), _MAXPATHLEN);
1535 return str;
1536}
1537
1538bool wxSetWorkingDirectory(const wxString& d)
1539{
1540#if defined(__OS2__)
1541 if (d[1] == ':')
1542 {
1543 ::DosSetDefaultDisk(wxToupper(d[0]) - wxT('A') + 1);
1544 // do not call DosSetCurrentDir when just changing drive,
1545 // since it requires e.g. "d:." instead of "d:"!
1546 if (d.length() == 2)
1547 return true;
1548 }
1549 return (::DosSetCurrentDir(d.c_str()) == 0);
1550#elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1551 return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1552#elif defined(__WINDOWS__)
1553
1554#ifdef __WIN32__
1555#ifdef __WXWINCE__
1556 // No equivalent in WinCE
1557 wxUnusedVar(d);
1558 return false;
1559#else
1560 return (bool)(SetCurrentDirectory(d.fn_str()) != 0);
1561#endif
1562#else
1563 // Must change drive, too.
1564 bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1565 if (isDriveSpec)
1566 {
1567 wxChar firstChar = d[0];
1568
1569 // To upper case
1570 if (firstChar > 90)
1571 firstChar = firstChar - 32;
1572
1573 // To a drive number
1574 unsigned int driveNo = firstChar - 64;
1575 if (driveNo > 0)
1576 {
1577 unsigned int noDrives;
1578 _dos_setdrive(driveNo, &noDrives);
1579 }
1580 }
1581 bool success = (chdir(WXSTRINGCAST d) == 0);
1582
1583 return success;
1584#endif
1585
1586#endif
1587}
1588
1589// Get the OS directory if appropriate (such as the Windows directory).
1590// On non-Windows platform, probably just return the empty string.
1591wxString wxGetOSDirectory()
1592{
1593#ifdef __WXWINCE__
1594 return wxString(wxT("\\Windows"));
1595#elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1596 wxChar buf[256];
1597 GetWindowsDirectory(buf, 256);
1598 return wxString(buf);
1599#elif defined(__WXMAC__) && wxOSX_USE_CARBON
1600 return wxMacFindFolderNoSeparator(kOnSystemDisk, 'macs', false);
1601#else
1602 return wxEmptyString;
1603#endif
1604}
1605
1606bool wxEndsWithPathSeparator(const wxString& filename)
1607{
1608 return !filename.empty() && wxIsPathSeparator(filename.Last());
1609}
1610
1611// find a file in a list of directories, returns false if not found
1612bool wxFindFileInPath(wxString *pStr, const wxString& szPath, const wxString& szFile)
1613{
1614 // we assume that it's not empty
1615 wxCHECK_MSG( !szFile.empty(), false,
1616 wxT("empty file name in wxFindFileInPath"));
1617
1618 // skip path separator in the beginning of the file name if present
1619 wxString szFile2;
1620 if ( wxIsPathSeparator(szFile[0u]) )
1621 szFile2 = szFile.Mid(1);
1622 else
1623 szFile2 = szFile;
1624
1625 wxStringTokenizer tkn(szPath, wxPATH_SEP);
1626
1627 while ( tkn.HasMoreTokens() )
1628 {
1629 wxString strFile = tkn.GetNextToken();
1630 if ( !wxEndsWithPathSeparator(strFile) )
1631 strFile += wxFILE_SEP_PATH;
1632 strFile += szFile2;
1633
1634 if ( wxFileExists(strFile) )
1635 {
1636 *pStr = strFile;
1637 return true;
1638 }
1639 }
1640
1641 return false;
1642}
1643
1644#if WXWIN_COMPATIBILITY_2_8
1645void WXDLLIMPEXP_BASE wxSplitPath(const wxString& fileName,
1646 wxString *pstrPath,
1647 wxString *pstrName,
1648 wxString *pstrExt)
1649{
1650 wxFileName::SplitPath(fileName, pstrPath, pstrName, pstrExt);
1651}
1652#endif // #if WXWIN_COMPATIBILITY_2_8
1653
1654#if wxUSE_DATETIME
1655
1656time_t WXDLLIMPEXP_BASE wxFileModificationTime(const wxString& filename)
1657{
1658 wxDateTime mtime;
1659 if ( !wxFileName(filename).GetTimes(NULL, &mtime, NULL) )
1660 return (time_t)-1;
1661
1662 return mtime.GetTicks();
1663}
1664
1665#endif // wxUSE_DATETIME
1666
1667
1668// Parses the filterStr, returning the number of filters.
1669// Returns 0 if none or if there's a problem.
1670// filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1671
1672int WXDLLIMPEXP_BASE wxParseCommonDialogsFilter(const wxString& filterStr,
1673 wxArrayString& descriptions,
1674 wxArrayString& filters)
1675{
1676 descriptions.Clear();
1677 filters.Clear();
1678
1679 wxString str(filterStr);
1680
1681 wxString description, filter;
1682 int pos = 0;
1683 while( pos != wxNOT_FOUND )
1684 {
1685 pos = str.Find(wxT('|'));
1686 if ( pos == wxNOT_FOUND )
1687 {
1688 // if there are no '|'s at all in the string just take the entire
1689 // string as filter and make description empty for later autocompletion
1690 if ( filters.IsEmpty() )
1691 {
1692 descriptions.Add(wxEmptyString);
1693 filters.Add(filterStr);
1694 }
1695 else
1696 {
1697 wxFAIL_MSG( wxT("missing '|' in the wildcard string!") );
1698 }
1699
1700 break;
1701 }
1702
1703 description = str.Left(pos);
1704 str = str.Mid(pos + 1);
1705 pos = str.Find(wxT('|'));
1706 if ( pos == wxNOT_FOUND )
1707 {
1708 filter = str;
1709 }
1710 else
1711 {
1712 filter = str.Left(pos);
1713 str = str.Mid(pos + 1);
1714 }
1715
1716 descriptions.Add(description);
1717 filters.Add(filter);
1718 }
1719
1720#if defined(__WXMOTIF__)
1721 // split it so there is one wildcard per entry
1722 for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1723 {
1724 pos = filters[i].Find(wxT(';'));
1725 if (pos != wxNOT_FOUND)
1726 {
1727 // first split only filters
1728 descriptions.Insert(descriptions[i],i+1);
1729 filters.Insert(filters[i].Mid(pos+1),i+1);
1730 filters[i]=filters[i].Left(pos);
1731
1732 // autoreplace new filter in description with pattern:
1733 // C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1734 // cause split into:
1735 // C/C++ Files(*.cpp)|*.cpp
1736 // C/C++ Files(*.c;*.h)|*.c;*.h
1737 // and next iteration cause another split into:
1738 // C/C++ Files(*.cpp)|*.cpp
1739 // C/C++ Files(*.c)|*.c
1740 // C/C++ Files(*.h)|*.h
1741 for ( size_t k=i;k<i+2;k++ )
1742 {
1743 pos = descriptions[k].Find(filters[k]);
1744 if (pos != wxNOT_FOUND)
1745 {
1746 wxString before = descriptions[k].Left(pos);
1747 wxString after = descriptions[k].Mid(pos+filters[k].Len());
1748 pos = before.Find(wxT('('),true);
1749 if (pos>before.Find(wxT(')'),true))
1750 {
1751 before = before.Left(pos+1);
1752 before << filters[k];
1753 pos = after.Find(wxT(')'));
1754 int pos1 = after.Find(wxT('('));
1755 if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1756 {
1757 before << after.Mid(pos);
1758 descriptions[k] = before;
1759 }
1760 }
1761 }
1762 }
1763 }
1764 }
1765#endif
1766
1767 // autocompletion
1768 for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1769 {
1770 if ( descriptions[j].empty() && !filters[j].empty() )
1771 {
1772 descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1773 }
1774 }
1775
1776 return filters.GetCount();
1777}
1778
1779#if defined(__WINDOWS__) && !(defined(__UNIX__) || defined(__OS2__))
1780static bool wxCheckWin32Permission(const wxString& path, DWORD access)
1781{
1782 // quoting the MSDN: "To obtain a handle to a directory, call the
1783 // CreateFile function with the FILE_FLAG_BACKUP_SEMANTICS flag", but this
1784 // doesn't work under Win9x/ME but then it's not needed there anyhow
1785 const DWORD dwAttr = ::GetFileAttributes(path.fn_str());
1786 if ( dwAttr == INVALID_FILE_ATTRIBUTES )
1787 {
1788 // file probably doesn't exist at all
1789 return false;
1790 }
1791
1792 if ( wxGetOsVersion() == wxOS_WINDOWS_9X )
1793 {
1794 // FAT directories always allow all access, even if they have the
1795 // readonly flag set, and FAT files can only be read-only
1796 return (dwAttr & FILE_ATTRIBUTE_DIRECTORY) ||
1797 (access != GENERIC_WRITE ||
1798 !(dwAttr & FILE_ATTRIBUTE_READONLY));
1799 }
1800
1801 HANDLE h = ::CreateFile
1802 (
1803 path.t_str(),
1804 access,
1805 FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
1806 NULL,
1807 OPEN_EXISTING,
1808 dwAttr & FILE_ATTRIBUTE_DIRECTORY
1809 ? FILE_FLAG_BACKUP_SEMANTICS
1810 : 0,
1811 NULL
1812 );
1813 if ( h != INVALID_HANDLE_VALUE )
1814 CloseHandle(h);
1815
1816 return h != INVALID_HANDLE_VALUE;
1817}
1818#endif // __WINDOWS__
1819
1820bool wxIsWritable(const wxString &path)
1821{
1822#if defined( __UNIX__ ) || defined(__OS2__)
1823 // access() will take in count also symbolic links
1824 return wxAccess(path.c_str(), W_OK) == 0;
1825#elif defined( __WINDOWS__ )
1826 return wxCheckWin32Permission(path, GENERIC_WRITE);
1827#else
1828 wxUnusedVar(path);
1829 // TODO
1830 return false;
1831#endif
1832}
1833
1834bool wxIsReadable(const wxString &path)
1835{
1836#if defined( __UNIX__ ) || defined(__OS2__)
1837 // access() will take in count also symbolic links
1838 return wxAccess(path.c_str(), R_OK) == 0;
1839#elif defined( __WINDOWS__ )
1840 return wxCheckWin32Permission(path, GENERIC_READ);
1841#else
1842 wxUnusedVar(path);
1843 // TODO
1844 return false;
1845#endif
1846}
1847
1848bool wxIsExecutable(const wxString &path)
1849{
1850#if defined( __UNIX__ ) || defined(__OS2__)
1851 // access() will take in count also symbolic links
1852 return wxAccess(path.c_str(), X_OK) == 0;
1853#elif defined( __WINDOWS__ )
1854 return wxCheckWin32Permission(path, GENERIC_EXECUTE);
1855#else
1856 wxUnusedVar(path);
1857 // TODO
1858 return false;
1859#endif
1860}
1861
1862// Return the type of an open file
1863//
1864// Some file types on some platforms seem seekable but in fact are not.
1865// The main use of this function is to allow such cases to be detected
1866// (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
1867//
1868// This is important for the archive streams, which benefit greatly from
1869// being able to seek on a stream, but which will produce corrupt archives
1870// if they unknowingly seek on a non-seekable stream.
1871//
1872// wxFILE_KIND_DISK is a good catch all return value, since other values
1873// disable features of the archive streams. Some other value must be returned
1874// for a file type that appears seekable but isn't.
1875//
1876// Known examples:
1877// * Pipes on Windows
1878// * Files on VMS with a record format other than StreamLF
1879//
1880wxFileKind wxGetFileKind(int fd)
1881{
1882#if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
1883 switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
1884 {
1885 case FILE_TYPE_CHAR:
1886 return wxFILE_KIND_TERMINAL;
1887 case FILE_TYPE_DISK:
1888 return wxFILE_KIND_DISK;
1889 case FILE_TYPE_PIPE:
1890 return wxFILE_KIND_PIPE;
1891 }
1892
1893 return wxFILE_KIND_UNKNOWN;
1894
1895#elif defined(__UNIX__)
1896 if (isatty(fd))
1897 return wxFILE_KIND_TERMINAL;
1898
1899 struct stat st;
1900 fstat(fd, &st);
1901
1902 if (S_ISFIFO(st.st_mode))
1903 return wxFILE_KIND_PIPE;
1904 if (!S_ISREG(st.st_mode))
1905 return wxFILE_KIND_UNKNOWN;
1906
1907 #if defined(__VMS__)
1908 if (st.st_fab_rfm != FAB$C_STMLF)
1909 return wxFILE_KIND_UNKNOWN;
1910 #endif
1911
1912 return wxFILE_KIND_DISK;
1913
1914#else
1915 #define wxFILEKIND_STUB
1916 (void)fd;
1917 return wxFILE_KIND_DISK;
1918#endif
1919}
1920
1921wxFileKind wxGetFileKind(FILE *fp)
1922{
1923 // Note: The watcom rtl dll doesn't have fileno (the static lib does).
1924 // Should be fixed in version 1.4.
1925#if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4)
1926 (void)fp;
1927 return wxFILE_KIND_DISK;
1928#elif defined(__WINDOWS__) && !defined(__CYGWIN__) && !defined(__WATCOMC__) && !defined(__WINE__)
1929 return fp ? wxGetFileKind(_fileno(fp)) : wxFILE_KIND_UNKNOWN;
1930#else
1931 return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN;
1932#endif
1933}
1934
1935
1936//------------------------------------------------------------------------
1937// wild character routines
1938//------------------------------------------------------------------------
1939
1940bool wxIsWild( const wxString& pattern )
1941{
1942 for ( wxString::const_iterator p = pattern.begin(); p != pattern.end(); ++p )
1943 {
1944 switch ( (*p).GetValue() )
1945 {
1946 case wxT('?'):
1947 case wxT('*'):
1948 case wxT('['):
1949 case wxT('{'):
1950 return true;
1951
1952 case wxT('\\'):
1953 if ( ++p == pattern.end() )
1954 return false;
1955 }
1956 }
1957 return false;
1958}
1959
1960/*
1961* Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1962*
1963* The match procedure is public domain code (from ircII's reg.c)
1964* but modified to suit our tastes (RN: No "%" syntax I guess)
1965*/
1966
1967bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1968{
1969 if (text.empty())
1970 {
1971 /* Match if both are empty. */
1972 return pat.empty();
1973 }
1974
1975 const wxChar *m = pat.c_str(),
1976 *n = text.c_str(),
1977 *ma = NULL,
1978 *na = NULL;
1979 int just = 0,
1980 acount = 0,
1981 count = 0;
1982
1983 if (dot_special && (*n == wxT('.')))
1984 {
1985 /* Never match so that hidden Unix files
1986 * are never found. */
1987 return false;
1988 }
1989
1990 for (;;)
1991 {
1992 if (*m == wxT('*'))
1993 {
1994 ma = ++m;
1995 na = n;
1996 just = 1;
1997 acount = count;
1998 }
1999 else if (*m == wxT('?'))
2000 {
2001 m++;
2002 if (!*n++)
2003 return false;
2004 }
2005 else
2006 {
2007 if (*m == wxT('\\'))
2008 {
2009 m++;
2010 /* Quoting "nothing" is a bad thing */
2011 if (!*m)
2012 return false;
2013 }
2014 if (!*m)
2015 {
2016 /*
2017 * If we are out of both strings or we just
2018 * saw a wildcard, then we can say we have a
2019 * match
2020 */
2021 if (!*n)
2022 return true;
2023 if (just)
2024 return true;
2025 just = 0;
2026 goto not_matched;
2027 }
2028 /*
2029 * We could check for *n == NULL at this point, but
2030 * since it's more common to have a character there,
2031 * check to see if they match first (m and n) and
2032 * then if they don't match, THEN we can check for
2033 * the NULL of n
2034 */
2035 just = 0;
2036 if (*m == *n)
2037 {
2038 m++;
2039 count++;
2040 n++;
2041 }
2042 else
2043 {
2044
2045 not_matched:
2046
2047 /*
2048 * If there are no more characters in the
2049 * string, but we still need to find another
2050 * character (*m != NULL), then it will be
2051 * impossible to match it
2052 */
2053 if (!*n)
2054 return false;
2055
2056 if (ma)
2057 {
2058 m = ma;
2059 n = ++na;
2060 count = acount;
2061 }
2062 else
2063 return false;
2064 }
2065 }
2066 }
2067}
2068
2069#ifdef __VISUALC__
2070 #pragma warning(default:4706) // assignment within conditional expression
2071#endif // VC++
wxWidgets (Impactor)