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[wxWidgets.git] / src / common / filefn.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: filefn.cpp
3 // Purpose: File- and directory-related functions
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 29/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) 1998 Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
21 #pragma implementation "filefn.h"
22 #endif
23
24 // For compilers that support precompilation, includes "wx.h".
25 #include "wx/wxprec.h"
26 #include "wx/defs.h"
27
28 #ifdef __BORLANDC__
29 #pragma hdrstop
30 #endif
31
32 #include "wx/utils.h"
33 #include "wx/intl.h"
34 #include "wx/file.h" // This does include filefn.h
35 #include "wx/filename.h"
36 #include "wx/dir.h"
37
38 // there are just too many of those...
39 #ifdef __VISUALC__
40 #pragma warning(disable:4706) // assignment within conditional expression
41 #endif // VC++
42
43 #include <ctype.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include <string.h>
47 #if !defined(__WATCOMC__)
48 #if !(defined(_MSC_VER) && (_MSC_VER > 800))
49 #include <errno.h>
50 #endif
51 #endif
52
53 #if defined(__WXMAC__)
54 #include "wx/mac/private.h" // includes mac headers
55 #endif
56
57 #include "wx/log.h"
58
59 // No, Cygwin doesn't appear to have fnmatch.h after all.
60 #if defined(HAVE_FNMATCH_H)
61 #include "fnmatch.h"
62 #endif
63
64 #ifdef __WINDOWS__
65 #include "wx/msw/wrapwin.h"
66 #include "wx/msw/mslu.h"
67
68 // sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
69 //
70 // note that it must be included after <windows.h>
71 #ifdef __GNUWIN32__
72 #ifdef __CYGWIN__
73 #include <sys/cygwin.h>
74 #endif
75 #endif // __GNUWIN32__
76 #endif // __WINDOWS__
77
78 // TODO: Borland probably has _wgetcwd as well?
79 #ifdef _MSC_VER
80 #define HAVE_WGETCWD
81 #endif
82
83 // ----------------------------------------------------------------------------
84 // constants
85 // ----------------------------------------------------------------------------
86
87 #ifndef _MAXPATHLEN
88 #define _MAXPATHLEN 1024
89 #endif
90
91 #ifdef __WXMAC__
92 # include "MoreFilesX.h"
93 #endif
94
95 // ----------------------------------------------------------------------------
96 // private globals
97 // ----------------------------------------------------------------------------
98
99 // MT-FIXME: get rid of this horror and all code using it
100 static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
101
102 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
103 //
104 // VisualAge C++ V4.0 cannot have any external linkage const decs
105 // in headers included by more than one primary source
106 //
107 const int wxInvalidOffset = -1;
108 #endif
109
110 // ----------------------------------------------------------------------------
111 // macros
112 // ----------------------------------------------------------------------------
113
114 // we need to translate Mac filenames before passing them to OS functions
115 #define OS_FILENAME(s) (s.fn_str())
116
117 // ============================================================================
118 // implementation
119 // ============================================================================
120
121 #ifdef wxNEED_WX_UNISTD_H
122
123 WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
124 {
125 return stat( wxConvFile.cWX2MB( file_name ), buf );
126 }
127
128 WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
129 {
130 return access( wxConvFile.cWX2MB( pathname ), mode );
131 }
132
133 WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
134 {
135 return open( wxConvFile.cWX2MB( pathname ), flags, mode );
136 }
137
138 #endif
139 // wxNEED_WX_UNISTD_H
140
141 // ----------------------------------------------------------------------------
142 // wxPathList
143 // ----------------------------------------------------------------------------
144
145 // IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
146
147 static inline wxChar* MYcopystring(const wxString& s)
148 {
149 wxChar* copy = new wxChar[s.length() + 1];
150 return wxStrcpy(copy, s.c_str());
151 }
152
153 static inline wxChar* MYcopystring(const wxChar* s)
154 {
155 wxChar* copy = new wxChar[wxStrlen(s) + 1];
156 return wxStrcpy(copy, s);
157 }
158
159 void wxPathList::Add (const wxString& path)
160 {
161 wxStringList::Add (WXSTRINGCAST path);
162 }
163
164 // Add paths e.g. from the PATH environment variable
165 void wxPathList::AddEnvList (const wxString& envVariable)
166 {
167 // No environment variables on WinCE
168 #ifndef __WXWINCE__
169 static const wxChar PATH_TOKS[] =
170 #if defined(__WINDOWS__) || defined(__OS2__)
171 /*
172 The space has been removed from the tokenizers, otherwise a
173 path such as "C:\Program Files" would be split into 2 paths:
174 "C:\Program" and "Files"
175 */
176 // wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
177 wxT(";"); // Don't seperate with colon in DOS (used for drive)
178 #else
179 wxT(" :;");
180 #endif
181
182 wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
183 if (val && *val)
184 {
185 wxChar *s = MYcopystring (val);
186 wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
187
188 if (token)
189 {
190 Add(token);
191 while (token)
192 {
193 if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
194 != NULL )
195 {
196 Add(token);
197 }
198 }
199 }
200
201 // suppress warning about unused variable save_ptr when wxStrtok() is a
202 // macro which throws away its third argument
203 save_ptr = token;
204
205 delete [] s;
206 }
207 #endif
208 }
209
210 // Given a full filename (with path), ensure that that file can
211 // be accessed again USING FILENAME ONLY by adding the path
212 // to the list if not already there.
213 void wxPathList::EnsureFileAccessible (const wxString& path)
214 {
215 wxString path_only(wxPathOnly(path));
216 if ( !path_only.empty() )
217 {
218 if ( !Member(path_only) )
219 Add(path_only);
220 }
221 }
222
223 bool wxPathList::Member (const wxString& path)
224 {
225 for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
226 {
227 wxString path2( node->GetData() );
228 if (
229 #if defined(__WINDOWS__) || defined(__OS2__) || defined(__VMS__) || defined (__WXMAC__)
230 // Case INDEPENDENT
231 path.CompareTo (path2, wxString::ignoreCase) == 0
232 #else
233 // Case sensitive File System
234 path.CompareTo (path2) == 0
235 #endif
236 )
237 return true;
238 }
239 return false;
240 }
241
242 wxString wxPathList::FindValidPath (const wxString& file)
243 {
244 if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
245 return wxString(wxFileFunctionsBuffer);
246
247 wxChar buf[_MAXPATHLEN];
248 wxStrcpy(buf, wxFileFunctionsBuffer);
249
250 wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
251
252 for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
253 {
254 const wxChar *path = node->GetData();
255 wxStrcpy (wxFileFunctionsBuffer, path);
256 wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
257 if (ch != wxT('\\') && ch != wxT('/'))
258 wxStrcat (wxFileFunctionsBuffer, wxT("/"));
259 wxStrcat (wxFileFunctionsBuffer, filename);
260 #ifdef __WINDOWS__
261 wxUnix2DosFilename (wxFileFunctionsBuffer);
262 #endif
263 if (wxFileExists (wxFileFunctionsBuffer))
264 {
265 return wxString(wxFileFunctionsBuffer); // Found!
266 }
267 } // for()
268
269 return wxEmptyString; // Not found
270 }
271
272 wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
273 {
274 wxString f = FindValidPath(file);
275 if ( f.empty() || wxIsAbsolutePath(f) )
276 return f;
277
278 wxString buf;
279 wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
280
281 if ( !wxEndsWithPathSeparator(buf) )
282 {
283 buf += wxFILE_SEP_PATH;
284 }
285 buf += f;
286
287 return buf;
288 }
289
290 bool
291 wxFileExists (const wxString& filename)
292 {
293 // we must use GetFileAttributes() instead of the ANSI C functions because
294 // it can cope with network (UNC) paths unlike them
295 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
296 DWORD ret = ::GetFileAttributes(filename);
297
298 return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
299 #else // !__WIN32__
300 wxStructStat st;
301 #ifndef wxNEED_WX_UNISTD_H
302 return wxStat( filename.fn_str() , &st) == 0 && (st.st_mode & S_IFREG);
303 #else
304 return wxStat( filename , &st) == 0 && (st.st_mode & S_IFREG);
305 #endif
306 #endif // __WIN32__/!__WIN32__
307 }
308
309 bool
310 wxIsAbsolutePath (const wxString& filename)
311 {
312 if (!filename.empty())
313 {
314 #if defined(__WXMAC__) && !defined(__DARWIN__)
315 // Classic or Carbon CodeWarrior like
316 // Carbon with Apple DevTools is Unix like
317
318 // This seems wrong to me, but there is no fix. since
319 // "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
320 // is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
321 if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
322 return true ;
323 #else
324 // Unix like or Windows
325 if (filename[0] == wxT('/'))
326 return true;
327 #endif
328 #ifdef __VMS__
329 if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
330 return true;
331 #endif
332 #if defined(__WINDOWS__) || defined(__OS2__)
333 // MSDOS like
334 if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
335 return true;
336 #endif
337 }
338 return false ;
339 }
340
341 /*
342 * Strip off any extension (dot something) from end of file,
343 * IF one exists. Inserts zero into buffer.
344 *
345 */
346
347 void wxStripExtension(wxChar *buffer)
348 {
349 int len = wxStrlen(buffer);
350 int i = len-1;
351 while (i > 0)
352 {
353 if (buffer[i] == wxT('.'))
354 {
355 buffer[i] = 0;
356 break;
357 }
358 i --;
359 }
360 }
361
362 void wxStripExtension(wxString& buffer)
363 {
364 //RN: Be careful about the handling the case where
365 //buffer.Length() == 0
366 for(size_t i = buffer.Length() - 1; i != wxString::npos; --i)
367 {
368 if (buffer.GetChar(i) == wxT('.'))
369 {
370 buffer = buffer.Left(i);
371 break;
372 }
373 }
374 }
375
376 // Destructive removal of /./ and /../ stuff
377 wxChar *wxRealPath (wxChar *path)
378 {
379 #ifdef __WXMSW__
380 static const wxChar SEP = wxT('\\');
381 wxUnix2DosFilename(path);
382 #else
383 static const wxChar SEP = wxT('/');
384 #endif
385 if (path[0] && path[1]) {
386 /* MATTHEW: special case "/./x" */
387 wxChar *p;
388 if (path[2] == SEP && path[1] == wxT('.'))
389 p = &path[0];
390 else
391 p = &path[2];
392 for (; *p; p++)
393 {
394 if (*p == SEP)
395 {
396 if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
397 {
398 wxChar *q;
399 for (q = p - 1; q >= path && *q != SEP; q--)
400 {
401 // Empty
402 }
403
404 if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
405 && (q - 1 <= path || q[-1] != SEP))
406 {
407 wxStrcpy (q, p + 3);
408 if (path[0] == wxT('\0'))
409 {
410 path[0] = SEP;
411 path[1] = wxT('\0');
412 }
413 #if defined(__WXMSW__) || defined(__OS2__)
414 /* Check that path[2] is NULL! */
415 else if (path[1] == wxT(':') && !path[2])
416 {
417 path[2] = SEP;
418 path[3] = wxT('\0');
419 }
420 #endif
421 p = q - 1;
422 }
423 }
424 else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
425 wxStrcpy (p, p + 2);
426 }
427 }
428 }
429 return path;
430 }
431
432 // Must be destroyed
433 wxChar *wxCopyAbsolutePath(const wxString& filename)
434 {
435 if (filename.empty())
436 return (wxChar *) NULL;
437
438 if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
439 wxChar buf[_MAXPATHLEN];
440 buf[0] = wxT('\0');
441 wxGetWorkingDirectory(buf, WXSIZEOF(buf));
442 wxChar ch = buf[wxStrlen(buf) - 1];
443 #ifdef __WXMSW__
444 if (ch != wxT('\\') && ch != wxT('/'))
445 wxStrcat(buf, wxT("\\"));
446 #else
447 if (ch != wxT('/'))
448 wxStrcat(buf, wxT("/"));
449 #endif
450 wxStrcat(buf, wxFileFunctionsBuffer);
451 return MYcopystring( wxRealPath(buf) );
452 }
453 return MYcopystring( wxFileFunctionsBuffer );
454 }
455
456 /*-
457 Handles:
458 ~/ => home dir
459 ~user/ => user's home dir
460 If the environment variable a = "foo" and b = "bar" then:
461 Unix:
462 $a => foo
463 $a$b => foobar
464 $a.c => foo.c
465 xxx$a => xxxfoo
466 ${a}! => foo!
467 $(b)! => bar!
468 \$a => \$a
469 MSDOS:
470 $a ==> $a
471 $(a) ==> foo
472 $(a)$b ==> foo$b
473 $(a)$(b)==> foobar
474 test.$$ ==> test.$$
475 */
476
477 /* input name in name, pathname output to buf. */
478
479 wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
480 {
481 register wxChar *d, *s, *nm;
482 wxChar lnm[_MAXPATHLEN];
483 int q;
484
485 // Some compilers don't like this line.
486 // const wxChar trimchars[] = wxT("\n \t");
487
488 wxChar trimchars[4];
489 trimchars[0] = wxT('\n');
490 trimchars[1] = wxT(' ');
491 trimchars[2] = wxT('\t');
492 trimchars[3] = 0;
493
494 #ifdef __WXMSW__
495 const wxChar SEP = wxT('\\');
496 #else
497 const wxChar SEP = wxT('/');
498 #endif
499 buf[0] = wxT('\0');
500 if (name == NULL || *name == wxT('\0'))
501 return buf;
502 nm = MYcopystring(name); // Make a scratch copy
503 wxChar *nm_tmp = nm;
504
505 /* Skip leading whitespace and cr */
506 while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
507 nm++;
508 /* And strip off trailing whitespace and cr */
509 s = nm + (q = wxStrlen(nm)) - 1;
510 while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
511 *s = wxT('\0');
512
513 s = nm;
514 d = lnm;
515 #ifdef __WXMSW__
516 q = FALSE;
517 #else
518 q = nm[0] == wxT('\\') && nm[1] == wxT('~');
519 #endif
520
521 /* Expand inline environment variables */
522 #ifdef __VISAGECPP__
523 while (*d)
524 {
525 *d++ = *s;
526 if(*s == wxT('\\'))
527 {
528 *(d - 1) = *++s;
529 if (*d)
530 {
531 s++;
532 continue;
533 }
534 else
535 break;
536 }
537 else
538 #else
539 while ((*d++ = *s) != 0) {
540 # ifndef __WXMSW__
541 if (*s == wxT('\\')) {
542 if ((*(d - 1) = *++s)) {
543 s++;
544 continue;
545 } else
546 break;
547 } else
548 # endif
549 #endif
550 // No env variables on WinCE
551 #ifndef __WXWINCE__
552 #ifdef __WXMSW__
553 if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
554 #else
555 if (*s++ == wxT('$'))
556 #endif
557 {
558 register wxChar *start = d;
559 register int braces = (*s == wxT('{') || *s == wxT('('));
560 register wxChar *value;
561 while ((*d++ = *s) != 0)
562 if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
563 break;
564 else
565 s++;
566 *--d = 0;
567 value = wxGetenv(braces ? start + 1 : start);
568 if (value) {
569 for ((d = start - 1); (*d++ = *value++) != 0;)
570 {
571 // Empty
572 }
573
574 d--;
575 if (braces && *s)
576 s++;
577 }
578 }
579 #endif
580 // __WXWINCE__
581 }
582
583 /* Expand ~ and ~user */
584 nm = lnm;
585 if (nm[0] == wxT('~') && !q)
586 {
587 /* prefix ~ */
588 if (nm[1] == SEP || nm[1] == 0)
589 { /* ~/filename */
590 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
591 if ((s = WXSTRINGCAST wxGetUserHome(wxEmptyString)) != NULL) {
592 if (*++nm)
593 nm++;
594 }
595 } else
596 { /* ~user/filename */
597 register wxChar *nnm;
598 register wxChar *home;
599 for (s = nm; *s && *s != SEP; s++)
600 {
601 // Empty
602 }
603 int was_sep; /* MATTHEW: Was there a separator, or NULL? */
604 was_sep = (*s == SEP);
605 nnm = *s ? s + 1 : s;
606 *s = 0;
607 // FIXME: wxGetUserHome could return temporary storage in Unicode mode
608 if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
609 if (was_sep) /* replace only if it was there: */
610 *s = SEP;
611 s = NULL;
612 } else {
613 nm = nnm;
614 s = home;
615 }
616 }
617 }
618
619 d = buf;
620 if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
621 /* Copy home dir */
622 while (wxT('\0') != (*d++ = *s++))
623 /* loop */;
624 // Handle root home
625 if (d - 1 > buf && *(d - 2) != SEP)
626 *(d - 1) = SEP;
627 }
628 s = nm;
629 while ((*d++ = *s++) != 0)
630 {
631 // Empty
632 }
633 delete[] nm_tmp; // clean up alloc
634 /* Now clean up the buffer */
635 return wxRealPath(buf);
636 }
637
638 /* Contract Paths to be build upon an environment variable
639 component:
640
641 example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
642
643 The call wxExpandPath can convert these back!
644 */
645 wxChar *
646 wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
647 {
648 static wxChar dest[_MAXPATHLEN];
649
650 if (filename.empty())
651 return (wxChar *) NULL;
652
653 wxStrcpy (dest, WXSTRINGCAST filename);
654 #ifdef __WXMSW__
655 wxUnix2DosFilename(dest);
656 #endif
657
658 // Handle environment
659 const wxChar *val;
660 #ifndef __WXWINCE__
661 wxChar *tcp;
662 if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
663 (tcp = wxStrstr (dest, val)) != NULL)
664 {
665 wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
666 *tcp++ = wxT('$');
667 *tcp++ = wxT('{');
668 wxStrcpy (tcp, WXSTRINGCAST envname);
669 wxStrcat (tcp, wxT("}"));
670 wxStrcat (tcp, wxFileFunctionsBuffer);
671 }
672 #endif
673
674 // Handle User's home (ignore root homes!)
675 val = wxGetUserHome (user);
676 if (!val)
677 return dest;
678
679 const size_t len = wxStrlen(val);
680 if (len <= 2)
681 return dest;
682
683 if (wxStrncmp(dest, val, len) == 0)
684 {
685 wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
686 if (!user.empty())
687 wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
688 wxStrcat(wxFileFunctionsBuffer, dest + len);
689 wxStrcpy (dest, wxFileFunctionsBuffer);
690 }
691
692 return dest;
693 }
694
695 // Return just the filename, not the path (basename)
696 wxChar *wxFileNameFromPath (wxChar *path)
697 {
698 wxString p = path;
699 wxString n = wxFileNameFromPath(p);
700
701 return path + p.length() - n.length();
702 }
703
704 wxString wxFileNameFromPath (const wxString& path)
705 {
706 wxString name, ext;
707 wxFileName::SplitPath(path, NULL, &name, &ext);
708
709 wxString fullname = name;
710 if ( !ext.empty() )
711 {
712 fullname << wxFILE_SEP_EXT << ext;
713 }
714
715 return fullname;
716 }
717
718 // Return just the directory, or NULL if no directory
719 wxChar *
720 wxPathOnly (wxChar *path)
721 {
722 if (path && *path)
723 {
724 static wxChar buf[_MAXPATHLEN];
725
726 // Local copy
727 wxStrcpy (buf, path);
728
729 int l = wxStrlen(path);
730 int i = l - 1;
731
732 // Search backward for a backward or forward slash
733 while (i > -1)
734 {
735 #if defined(__WXMAC__) && !defined(__DARWIN__)
736 // Classic or Carbon CodeWarrior like
737 // Carbon with Apple DevTools is Unix like
738 if (path[i] == wxT(':') )
739 {
740 buf[i] = 0;
741 return buf;
742 }
743 #else
744 // Unix like or Windows
745 if (path[i] == wxT('/') || path[i] == wxT('\\'))
746 {
747 buf[i] = 0;
748 return buf;
749 }
750 #endif
751 #ifdef __VMS__
752 if (path[i] == wxT(']'))
753 {
754 buf[i+1] = 0;
755 return buf;
756 }
757 #endif
758 i --;
759 }
760
761 #if defined(__WXMSW__) || defined(__OS2__)
762 // Try Drive specifier
763 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
764 {
765 // A:junk --> A:. (since A:.\junk Not A:\junk)
766 buf[2] = wxT('.');
767 buf[3] = wxT('\0');
768 return buf;
769 }
770 #endif
771 }
772 return (wxChar *) NULL;
773 }
774
775 // Return just the directory, or NULL if no directory
776 wxString wxPathOnly (const wxString& path)
777 {
778 if (!path.empty())
779 {
780 wxChar buf[_MAXPATHLEN];
781
782 // Local copy
783 wxStrcpy (buf, WXSTRINGCAST path);
784
785 int l = path.Length();
786 int i = l - 1;
787
788 // Search backward for a backward or forward slash
789 while (i > -1)
790 {
791 #if defined(__WXMAC__) && !defined(__DARWIN__)
792 // Classic or Carbon CodeWarrior like
793 // Carbon with Apple DevTools is Unix like
794 if (path[i] == wxT(':') )
795 {
796 buf[i] = 0;
797 return wxString(buf);
798 }
799 #else
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 #endif
810 #ifdef __VMS__
811 if (path[i] == wxT(']'))
812 {
813 buf[i+1] = 0;
814 return wxString(buf);
815 }
816 #endif
817 i --;
818 }
819
820 #if defined(__WXMSW__) || defined(__OS2__)
821 // Try Drive specifier
822 if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
823 {
824 // A:junk --> A:. (since A:.\junk Not A:\junk)
825 buf[2] = wxT('.');
826 buf[3] = wxT('\0');
827 return wxString(buf);
828 }
829 #endif
830 }
831 return wxEmptyString;
832 }
833
834 // Utility for converting delimiters in DOS filenames to UNIX style
835 // and back again - or we get nasty problems with delimiters.
836 // Also, convert to lower case, since case is significant in UNIX.
837
838 #if defined(__WXMAC__)
839
840 #if TARGET_API_MAC_OSX
841 #define kDefaultPathStyle kCFURLPOSIXPathStyle
842 #else
843 #define kDefaultPathStyle kCFURLHFSPathStyle
844 #endif
845
846 wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
847 {
848 CFURLRef fullURLRef;
849 fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
850 if ( additionalPathComponent )
851 {
852 CFURLRef parentURLRef = fullURLRef ;
853 fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
854 additionalPathComponent,false);
855 CFRelease( parentURLRef ) ;
856 }
857 CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
858 CFRelease( fullURLRef ) ;
859 return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
860 }
861
862 OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
863 {
864 OSStatus err = noErr ;
865 CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
866 if ( NULL != url )
867 {
868 if ( CFURLGetFSRef(url, fsRef) == false )
869 err = fnfErr ;
870 CFRelease( url ) ;
871 }
872 else
873 {
874 err = fnfErr ;
875 }
876 return err ;
877 }
878
879 wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
880 {
881 CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
882 uniname->unicode,
883 uniname->length );
884 return wxMacCFStringHolder(cfname).AsString() ;
885 }
886
887 wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
888 {
889 FSRef fsRef ;
890 if ( FSpMakeFSRef( spec , &fsRef) == noErr )
891 {
892 return wxMacFSRefToPath( &fsRef ) ;
893 }
894 return wxEmptyString ;
895 }
896
897 void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
898 {
899 OSStatus err = noErr ;
900 FSRef fsRef ;
901 wxMacPathToFSRef( path , &fsRef ) ;
902 err = FSRefMakeFSSpec( &fsRef , spec ) ;
903 }
904
905 #endif // __WXMAC__
906
907 void
908 wxDos2UnixFilename (wxChar *s)
909 {
910 if (s)
911 while (*s)
912 {
913 if (*s == _T('\\'))
914 *s = _T('/');
915 #ifdef __WXMSW__
916 else
917 *s = (wxChar)wxTolower (*s); // Case INDEPENDENT
918 #endif
919 s++;
920 }
921 }
922
923 void
924 #if defined(__WXMSW__) || defined(__OS2__)
925 wxUnix2DosFilename (wxChar *s)
926 #else
927 wxUnix2DosFilename (wxChar *WXUNUSED(s) )
928 #endif
929 {
930 // Yes, I really mean this to happen under DOS only! JACS
931 #if defined(__WXMSW__) || defined(__OS2__)
932 if (s)
933 while (*s)
934 {
935 if (*s == wxT('/'))
936 *s = wxT('\\');
937 s++;
938 }
939 #endif
940 }
941
942 // Concatenate two files to form third
943 bool
944 wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
945 {
946 wxString outfile;
947 if ( !wxGetTempFileName( wxT("cat"), outfile) )
948 return false;
949
950 FILE *fp1 wxDUMMY_INITIALIZE(NULL);
951 FILE *fp2 = NULL;
952 FILE *fp3 = NULL;
953 // Open the inputs and outputs
954 if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
955 (fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
956 (fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
957 {
958 if (fp1)
959 fclose (fp1);
960 if (fp2)
961 fclose (fp2);
962 if (fp3)
963 fclose (fp3);
964 return false;
965 }
966
967 int ch;
968 while ((ch = getc (fp1)) != EOF)
969 (void) putc (ch, fp3);
970 fclose (fp1);
971
972 while ((ch = getc (fp2)) != EOF)
973 (void) putc (ch, fp3);
974 fclose (fp2);
975
976 fclose (fp3);
977 bool result = wxRenameFile(outfile, file3);
978 return result;
979 }
980
981 // Copy files
982 bool
983 wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
984 {
985 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
986 // CopyFile() copies file attributes and modification time too, so use it
987 // instead of our code if available
988 //
989 // NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
990 if ( !::CopyFile(file1, file2, !overwrite) )
991 {
992 wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
993 file1.c_str(), file2.c_str());
994
995 return false;
996 }
997 #elif defined(__OS2__)
998 if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
999 return false;
1000 #else // !Win32
1001
1002 wxStructStat fbuf;
1003 // get permissions of file1
1004 if ( wxStat( file1.c_str(), &fbuf) != 0 )
1005 {
1006 // the file probably doesn't exist or we haven't the rights to read
1007 // from it anyhow
1008 wxLogSysError(_("Impossible to get permissions for file '%s'"),
1009 file1.c_str());
1010 return false;
1011 }
1012
1013 // open file1 for reading
1014 wxFile fileIn(file1, wxFile::read);
1015 if ( !fileIn.IsOpened() )
1016 return false;
1017
1018 // remove file2, if it exists. This is needed for creating
1019 // file2 with the correct permissions in the next step
1020 if ( wxFileExists(file2) && (!overwrite || !wxRemoveFile(file2)))
1021 {
1022 wxLogSysError(_("Impossible to overwrite the file '%s'"),
1023 file2.c_str());
1024 return false;
1025 }
1026
1027 // reset the umask as we want to create the file with exactly the same
1028 // permissions as the original one
1029 wxCHANGE_UMASK(0);
1030
1031 // create file2 with the same permissions than file1 and open it for
1032 // writing
1033
1034 wxFile fileOut;
1035 if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
1036 return false;
1037
1038 // copy contents of file1 to file2
1039 char buf[4096];
1040 size_t count;
1041 for ( ;; )
1042 {
1043 count = fileIn.Read(buf, WXSIZEOF(buf));
1044 if ( fileIn.Error() )
1045 return false;
1046
1047 // end of file?
1048 if ( !count )
1049 break;
1050
1051 if ( fileOut.Write(buf, count) < count )
1052 return false;
1053 }
1054
1055 // we can expect fileIn to be closed successfully, but we should ensure
1056 // that fileOut was closed as some write errors (disk full) might not be
1057 // detected before doing this
1058 if ( !fileIn.Close() || !fileOut.Close() )
1059 return false;
1060
1061 #if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
1062 // no chmod in VA. Should be some permission API for HPFS386 partitions
1063 // however
1064 if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
1065 {
1066 wxLogSysError(_("Impossible to set permissions for the file '%s'"),
1067 file2.c_str());
1068 return false;
1069 }
1070 #endif // OS/2 || Mac
1071 #endif // __WXMSW__ && __WIN32__
1072
1073 return true;
1074 }
1075
1076 bool
1077 wxRenameFile (const wxString& file1, const wxString& file2)
1078 {
1079 #ifndef __WXWINCE__
1080 // Normal system call
1081 if ( wxRename (file1, file2) == 0 )
1082 return true;
1083 #endif
1084
1085 // Try to copy
1086 if (wxCopyFile(file1, file2)) {
1087 wxRemoveFile(file1);
1088 return true;
1089 }
1090 // Give up
1091 return false;
1092 }
1093
1094 bool wxRemoveFile(const wxString& file)
1095 {
1096 #if defined(__VISUALC__) \
1097 || defined(__BORLANDC__) \
1098 || defined(__WATCOMC__) \
1099 || defined(__DMC__) \
1100 || defined(__GNUWIN32__) \
1101 || (defined(__MWERKS__) && defined(__MSL__))
1102 int res = wxRemove(file);
1103 #elif defined(__WXMAC__)
1104 int res = unlink(wxFNCONV(file));
1105 #else
1106 int res = unlink(OS_FILENAME(file));
1107 #endif
1108
1109 return res == 0;
1110 }
1111
1112 bool wxMkdir(const wxString& dir, int perm)
1113 {
1114 #if defined(__WXMAC__) && !defined(__UNIX__)
1115 return (mkdir( wxFNCONV(dir) , 0 ) == 0);
1116 #else // !Mac
1117 const wxChar *dirname = dir.c_str();
1118
1119 // assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
1120 // for the GNU compiler
1121 #if (!(defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
1122 #if defined(MSVCRT)
1123 wxUnusedVar(perm);
1124 if ( mkdir(wxFNCONV(dirname)) != 0 )
1125 #else
1126 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1127 #endif
1128 #elif defined(__OS2__)
1129 if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
1130 #elif defined(__DOS__)
1131 #if defined(__WATCOMC__)
1132 (void)perm;
1133 if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
1134 #elif defined(__DJGPP__)
1135 if ( mkdir(wxFNCONV(dirname), perm) != 0 )
1136 #else
1137 #error "Unsupported DOS compiler!"
1138 #endif
1139 #else // !MSW, !DOS and !OS/2 VAC++
1140 wxUnusedVar(perm);
1141 #ifdef __WXWINCE__
1142 if ( !CreateDirectory(dirname, NULL) )
1143 #else
1144 if ( wxMkDir(dir.fn_str()) != 0 )
1145 #endif
1146 #endif // !MSW/MSW
1147 {
1148 wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
1149
1150 return false;
1151 }
1152
1153 return true;
1154 #endif // Mac/!Mac
1155 }
1156
1157 bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
1158 {
1159 #ifdef __VMS__
1160 return false; //to be changed since rmdir exists in VMS7.x
1161 #elif defined(__OS2__)
1162 return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
1163 #else
1164
1165 #ifdef __WXWINCE__
1166 return (CreateDirectory(dir, NULL) != 0);
1167 #else
1168 return (wxRmDir(OS_FILENAME(dir)) == 0);
1169 #endif
1170
1171 #endif
1172 }
1173
1174 // does the path exists? (may have or not '/' or '\\' at the end)
1175 bool wxPathExists(const wxChar *pszPathName)
1176 {
1177 wxString strPath(pszPathName);
1178
1179 #if defined(__WINDOWS__) || defined(__OS2__)
1180 // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
1181 // so remove all trailing backslashes from the path - but don't do this for
1182 // the pathes "d:\" (which are different from "d:") nor for just "\"
1183 while ( wxEndsWithPathSeparator(strPath) )
1184 {
1185 size_t len = strPath.length();
1186 if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
1187 break;
1188
1189 strPath.Truncate(len - 1);
1190 }
1191 #endif // __WINDOWS__
1192
1193 #ifdef __OS2__
1194 // OS/2 can't handle "d:", it wants either "d:\" or "d:."
1195 if (strPath.length() == 2 && strPath[1u] == _T(':'))
1196 strPath << _T('.');
1197 #endif
1198
1199 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1200 // stat() can't cope with network paths
1201 DWORD ret = ::GetFileAttributes(strPath);
1202
1203 return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
1204 #else // !__WIN32__
1205
1206 wxStructStat st;
1207 #ifndef __VISAGECPP__
1208 return wxStat(strPath.c_str(), &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
1209 #else
1210 // S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
1211 return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
1212 #endif
1213
1214 #endif // __WIN32__/!__WIN32__
1215 }
1216
1217 // Get a temporary filename, opening and closing the file.
1218 wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
1219 {
1220 wxString filename = wxFileName::CreateTempFileName(prefix);
1221 if ( filename.empty() )
1222 return NULL;
1223
1224 if ( buf )
1225 wxStrcpy(buf, filename);
1226 else
1227 buf = MYcopystring(filename);
1228
1229 return buf;
1230 }
1231
1232 bool wxGetTempFileName(const wxString& prefix, wxString& buf)
1233 {
1234 buf = wxFileName::CreateTempFileName(prefix);
1235
1236 return !buf.empty();
1237 }
1238
1239 // Get first file name matching given wild card.
1240
1241 static wxDir *gs_dir = NULL;
1242 static wxString gs_dirPath;
1243
1244 wxString wxFindFirstFile(const wxChar *spec, int flags)
1245 {
1246 wxSplitPath(spec, &gs_dirPath, NULL, NULL);
1247 if ( gs_dirPath.empty() )
1248 gs_dirPath = wxT(".");
1249 if ( !wxEndsWithPathSeparator(gs_dirPath ) )
1250 gs_dirPath << wxFILE_SEP_PATH;
1251
1252 if (gs_dir)
1253 delete gs_dir;
1254 gs_dir = new wxDir(gs_dirPath);
1255
1256 if ( !gs_dir->IsOpened() )
1257 {
1258 wxLogSysError(_("Can not enumerate files '%s'"), spec);
1259 return wxEmptyString;
1260 }
1261
1262 int dirFlags;
1263 switch (flags)
1264 {
1265 case wxDIR: dirFlags = wxDIR_DIRS; break;
1266 case wxFILE: dirFlags = wxDIR_FILES; break;
1267 default: dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
1268 }
1269
1270 wxString result;
1271 gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
1272 if ( result.empty() )
1273 {
1274 wxDELETE(gs_dir);
1275 return result;
1276 }
1277
1278 return gs_dirPath + result;
1279 }
1280
1281 wxString wxFindNextFile()
1282 {
1283 wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
1284
1285 wxString result;
1286 gs_dir->GetNext(&result);
1287
1288 if ( result.empty() )
1289 {
1290 wxDELETE(gs_dir);
1291 return result;
1292 }
1293
1294 return gs_dirPath + result;
1295 }
1296
1297
1298 // Get current working directory.
1299 // If buf is NULL, allocates space using new, else
1300 // copies into buf.
1301 wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
1302 {
1303 #ifdef __WXWINCE__
1304 return NULL;
1305 #else
1306 if ( !buf )
1307 {
1308 buf = new wxChar[sz + 1];
1309 }
1310
1311 bool ok wxDUMMY_INITIALIZE(false);
1312
1313 // for the compilers which have Unicode version of _getcwd(), call it
1314 // directly, for the others call the ANSI version and do the translation
1315 #if !wxUSE_UNICODE
1316 #define cbuf buf
1317 #else // wxUSE_UNICODE
1318 bool needsANSI = true;
1319
1320 #if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
1321 // This is not legal code as the compiler
1322 // is allowed destroy the wxCharBuffer.
1323 // wxCharBuffer c_buffer(sz);
1324 // char *cbuf = (char*)(const char*)c_buffer;
1325 char cbuf[_MAXPATHLEN];
1326 #endif
1327
1328 #ifdef HAVE_WGETCWD
1329 #if wxUSE_UNICODE_MSLU
1330 if ( wxGetOsVersion() != wxWIN95 )
1331 #else
1332 char *cbuf = NULL; // never really used because needsANSI will always be false
1333 #endif
1334 {
1335 ok = _wgetcwd(buf, sz) != NULL;
1336 needsANSI = false;
1337 }
1338 #endif
1339
1340 if ( needsANSI )
1341 #endif // wxUSE_UNICODE
1342 {
1343 #if defined(_MSC_VER) || defined(__MINGW32__)
1344 ok = _getcwd(cbuf, sz) != NULL;
1345 #elif defined(__WXMAC__) && !defined(__DARWIN__)
1346 char lbuf[1024] ;
1347 if ( getcwd( lbuf , sizeof( lbuf ) ) )
1348 {
1349 wxString res( lbuf , *wxConvCurrent ) ;
1350 wxStrcpy( buf , res ) ;
1351 ok = true;
1352 }
1353 else
1354 ok = false ;
1355 #elif defined(__OS2__)
1356 APIRET rc;
1357 ULONG ulDriveNum = 0;
1358 ULONG ulDriveMap = 0;
1359 rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
1360 ok = rc == 0;
1361 if (ok)
1362 {
1363 sz -= 3;
1364 rc = ::DosQueryCurrentDir( 0 // current drive
1365 ,cbuf + 3
1366 ,(PULONG)&sz
1367 );
1368 cbuf[0] = 'A' + (ulDriveNum - 1);
1369 cbuf[1] = ':';
1370 cbuf[2] = '\\';
1371 ok = rc == 0;
1372 }
1373 #else // !Win32/VC++ !Mac !OS2
1374 ok = getcwd(cbuf, sz) != NULL;
1375 #endif // platform
1376
1377 #if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
1378 // finally convert the result to Unicode if needed
1379 wxConvFile.MB2WC(buf, cbuf, sz);
1380 #endif // wxUSE_UNICODE
1381 }
1382
1383 if ( !ok )
1384 {
1385 wxLogSysError(_("Failed to get the working directory"));
1386
1387 // VZ: the old code used to return "." on error which didn't make any
1388 // sense at all to me - empty string is a better error indicator
1389 // (NULL might be even better but I'm afraid this could lead to
1390 // problems with the old code assuming the return is never NULL)
1391 buf[0] = _T('\0');
1392 }
1393 else // ok, but we might need to massage the path into the right format
1394 {
1395 #ifdef __DJGPP__
1396 // VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
1397 // with / deliminers. We don't like that.
1398 for (wxChar *ch = buf; *ch; ch++)
1399 {
1400 if (*ch == wxT('/'))
1401 *ch = wxT('\\');
1402 }
1403 #endif // __DJGPP__
1404
1405 // MBN: we hope that in the case the user is compiling a GTK+/Motif app,
1406 // he needs Unix as opposed to Win32 pathnames
1407 #if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
1408 // another example of DOS/Unix mix (Cygwin)
1409 wxString pathUnix = buf;
1410 cygwin_conv_to_full_win32_path(pathUnix, buf);
1411 #endif // __CYGWIN__
1412 }
1413
1414 return buf;
1415
1416 #if !wxUSE_UNICODE
1417 #undef cbuf
1418 #endif
1419
1420 #endif
1421 // __WXWINCE__
1422 }
1423
1424 wxString wxGetCwd()
1425 {
1426 wxChar *buffer = new wxChar[_MAXPATHLEN];
1427 wxGetWorkingDirectory(buffer, _MAXPATHLEN);
1428 wxString str( buffer );
1429 delete [] buffer;
1430
1431 return str;
1432 }
1433
1434 bool wxSetWorkingDirectory(const wxString& d)
1435 {
1436 #if defined(__OS2__)
1437 return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
1438 #elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
1439 return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
1440 #elif defined(__WINDOWS__)
1441
1442 #ifdef __WIN32__
1443 #ifdef __WXWINCE__
1444 // No equivalent in WinCE
1445 return false;
1446 #else
1447 return (bool)(SetCurrentDirectory(d) != 0);
1448 #endif
1449 #else
1450 // Must change drive, too.
1451 bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
1452 if (isDriveSpec)
1453 {
1454 wxChar firstChar = d[0];
1455
1456 // To upper case
1457 if (firstChar > 90)
1458 firstChar = firstChar - 32;
1459
1460 // To a drive number
1461 unsigned int driveNo = firstChar - 64;
1462 if (driveNo > 0)
1463 {
1464 unsigned int noDrives;
1465 _dos_setdrive(driveNo, &noDrives);
1466 }
1467 }
1468 bool success = (chdir(WXSTRINGCAST d) == 0);
1469
1470 return success;
1471 #endif
1472
1473 #endif
1474 }
1475
1476 // Get the OS directory if appropriate (such as the Windows directory).
1477 // On non-Windows platform, probably just return the empty string.
1478 wxString wxGetOSDirectory()
1479 {
1480 #ifdef __WXWINCE__
1481 return wxString(wxT("\\Windows"));
1482 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
1483 wxChar buf[256];
1484 GetWindowsDirectory(buf, 256);
1485 return wxString(buf);
1486 #elif defined(__WXMAC__)
1487 return wxMacFindFolder(kOnSystemDisk, 'macs', false);
1488 #else
1489 return wxEmptyString;
1490 #endif
1491 }
1492
1493 bool wxEndsWithPathSeparator(const wxChar *pszFileName)
1494 {
1495 size_t len = wxStrlen(pszFileName);
1496
1497 return len && wxIsPathSeparator(pszFileName[len - 1]);
1498 }
1499
1500 // find a file in a list of directories, returns false if not found
1501 bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
1502 {
1503 // we assume that it's not empty
1504 wxCHECK_MSG( !wxIsEmpty(pszFile), false,
1505 _T("empty file name in wxFindFileInPath"));
1506
1507 // skip path separator in the beginning of the file name if present
1508 if ( wxIsPathSeparator(*pszFile) )
1509 pszFile++;
1510
1511 // copy the path (strtok will modify it)
1512 wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
1513 wxStrcpy(szPath, pszPath);
1514
1515 wxString strFile;
1516 wxChar *pc, *save_ptr;
1517 for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
1518 pc != NULL;
1519 pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
1520 {
1521 // search for the file in this directory
1522 strFile = pc;
1523 if ( !wxEndsWithPathSeparator(pc) )
1524 strFile += wxFILE_SEP_PATH;
1525 strFile += pszFile;
1526
1527 if ( wxFileExists(strFile) ) {
1528 *pStr = strFile;
1529 break;
1530 }
1531 }
1532
1533 // suppress warning about unused variable save_ptr when wxStrtok() is a
1534 // macro which throws away its third argument
1535 save_ptr = pc;
1536
1537 delete [] szPath;
1538
1539 return pc != NULL; // if true => we breaked from the loop
1540 }
1541
1542 void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
1543 wxString *pstrPath,
1544 wxString *pstrName,
1545 wxString *pstrExt)
1546 {
1547 // it can be empty, but it shouldn't be NULL
1548 wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
1549
1550 wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
1551 }
1552
1553 time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
1554 {
1555 #ifdef __WXWINCE__
1556 FILETIME creationTime, lastAccessTime, lastWriteTime;
1557 HANDLE fileHandle = ::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
1558 0, FILE_ATTRIBUTE_NORMAL, 0);
1559 if (fileHandle == INVALID_HANDLE_VALUE)
1560 return 0;
1561 else
1562 {
1563 if (GetFileTime(fileHandle, & creationTime, & lastAccessTime, & lastWriteTime))
1564 {
1565 CloseHandle(fileHandle);
1566
1567 wxDateTime dateTime;
1568 FILETIME ftLocal;
1569 if ( !::FileTimeToLocalFileTime(&lastWriteTime, &ftLocal) )
1570 {
1571 wxLogLastError(_T("FileTimeToLocalFileTime"));
1572 }
1573
1574 SYSTEMTIME st;
1575 if ( !::FileTimeToSystemTime(&ftLocal, &st) )
1576 {
1577 wxLogLastError(_T("FileTimeToSystemTime"));
1578 }
1579
1580 dateTime.Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
1581 st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
1582 return dateTime.GetTicks();
1583 }
1584 else
1585 return 0;
1586 }
1587 #else
1588 wxStructStat buf;
1589 wxStat( filename, &buf);
1590
1591 return buf.st_mtime;
1592 #endif
1593 }
1594
1595
1596 // Parses the filterStr, returning the number of filters.
1597 // Returns 0 if none or if there's a problem.
1598 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
1599
1600 int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr, wxArrayString& descriptions, wxArrayString& filters)
1601 {
1602 descriptions.Clear();
1603 filters.Clear();
1604
1605 wxString str(filterStr);
1606
1607 wxString description, filter;
1608 int pos = 0;
1609 while( pos != wxNOT_FOUND )
1610 {
1611 pos = str.Find(wxT('|'));
1612 if ( pos == wxNOT_FOUND )
1613 {
1614 // if there are no '|'s at all in the string just take the entire
1615 // string as filter and make description empty for later autocompletion
1616 if ( filters.IsEmpty() )
1617 {
1618 descriptions.Add(wxEmptyString);
1619 filters.Add(filterStr);
1620 }
1621 else
1622 {
1623 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
1624 }
1625
1626 break;
1627 }
1628
1629 description = str.Left(pos);
1630 str = str.Mid(pos + 1);
1631 pos = str.Find(wxT('|'));
1632 if ( pos == wxNOT_FOUND )
1633 {
1634 filter = str;
1635 }
1636 else
1637 {
1638 filter = str.Left(pos);
1639 str = str.Mid(pos + 1);
1640 }
1641
1642 descriptions.Add(description);
1643 filters.Add(filter);
1644 }
1645
1646 #if defined(__WXMOTIF__)
1647 // split it so there is one wildcard per entry
1648 for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
1649 {
1650 pos = filters[i].Find(wxT(';'));
1651 if (pos != wxNOT_FOUND)
1652 {
1653 // first split only filters
1654 descriptions.Insert(descriptions[i],i+1);
1655 filters.Insert(filters[i].Mid(pos+1),i+1);
1656 filters[i]=filters[i].Left(pos);
1657
1658 // autoreplace new filter in description with pattern:
1659 // C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
1660 // cause split into:
1661 // C/C++ Files(*.cpp)|*.cpp
1662 // C/C++ Files(*.c;*.h)|*.c;*.h
1663 // and next iteration cause another split into:
1664 // C/C++ Files(*.cpp)|*.cpp
1665 // C/C++ Files(*.c)|*.c
1666 // C/C++ Files(*.h)|*.h
1667 for ( size_t k=i;k<i+2;k++ )
1668 {
1669 pos = descriptions[k].Find(filters[k]);
1670 if (pos != wxNOT_FOUND)
1671 {
1672 wxString before = descriptions[k].Left(pos);
1673 wxString after = descriptions[k].Mid(pos+filters[k].Len());
1674 pos = before.Find(_T('('),true);
1675 if (pos>before.Find(_T(')'),true))
1676 {
1677 before = before.Left(pos+1);
1678 before << filters[k];
1679 pos = after.Find(_T(')'));
1680 int pos1 = after.Find(_T('('));
1681 if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
1682 {
1683 before << after.Mid(pos);
1684 descriptions[k] = before;
1685 }
1686 }
1687 }
1688 }
1689 }
1690 }
1691 #endif
1692
1693 // autocompletion
1694 for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
1695 {
1696 if ( descriptions[j] == wxEmptyString && filters[j] != wxEmptyString )
1697 {
1698 descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
1699 }
1700 }
1701
1702 return filters.GetCount();
1703 }
1704
1705
1706 //------------------------------------------------------------------------
1707 // wild character routines
1708 //------------------------------------------------------------------------
1709
1710 bool wxIsWild( const wxString& pattern )
1711 {
1712 wxString tmp = pattern;
1713 wxChar *pat = WXSTRINGCAST(tmp);
1714 while (*pat)
1715 {
1716 switch (*pat++)
1717 {
1718 case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
1719 return true;
1720 case wxT('\\'):
1721 if (!*pat++)
1722 return false;
1723 }
1724 }
1725 return false;
1726 }
1727
1728 /*
1729 * Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
1730 *
1731 * The match procedure is public domain code (from ircII's reg.c)
1732 */
1733
1734 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1735 {
1736 if (text.empty())
1737 {
1738 /* Match if both are empty. */
1739 return pat.empty();
1740 }
1741
1742 const wxChar *m = pat.c_str(),
1743 *n = text.c_str(),
1744 *ma = NULL,
1745 *na = NULL,
1746 *mp = NULL,
1747 *np = NULL;
1748 int just = 0,
1749 pcount = 0,
1750 acount = 0,
1751 count = 0;
1752
1753 if (dot_special && (*n == wxT('.')))
1754 {
1755 /* Never match so that hidden Unix files
1756 * are never found. */
1757 return false;
1758 }
1759
1760 for (;;)
1761 {
1762 if (*m == wxT('*'))
1763 {
1764 ma = ++m;
1765 na = n;
1766 just = 1;
1767 mp = NULL;
1768 acount = count;
1769 }
1770 else if (*m == wxT('?'))
1771 {
1772 m++;
1773 if (!*n++)
1774 return false;
1775 }
1776 else
1777 {
1778 if (*m == wxT('\\'))
1779 {
1780 m++;
1781 /* Quoting "nothing" is a bad thing */
1782 if (!*m)
1783 return false;
1784 }
1785 if (!*m)
1786 {
1787 /*
1788 * If we are out of both strings or we just
1789 * saw a wildcard, then we can say we have a
1790 * match
1791 */
1792 if (!*n)
1793 return true;
1794 if (just)
1795 return true;
1796 just = 0;
1797 goto not_matched;
1798 }
1799 /*
1800 * We could check for *n == NULL at this point, but
1801 * since it's more common to have a character there,
1802 * check to see if they match first (m and n) and
1803 * then if they don't match, THEN we can check for
1804 * the NULL of n
1805 */
1806 just = 0;
1807 if (*m == *n)
1808 {
1809 m++;
1810 if (*n == wxT(' '))
1811 mp = NULL;
1812 count++;
1813 n++;
1814 }
1815 else
1816 {
1817
1818 not_matched:
1819
1820 /*
1821 * If there are no more characters in the
1822 * string, but we still need to find another
1823 * character (*m != NULL), then it will be
1824 * impossible to match it
1825 */
1826 if (!*n)
1827 return false;
1828 if (mp)
1829 {
1830 m = mp;
1831 if (*np == wxT(' '))
1832 {
1833 mp = NULL;
1834 goto check_percent;
1835 }
1836 n = ++np;
1837 count = pcount;
1838 }
1839 else
1840 check_percent:
1841
1842 if (ma)
1843 {
1844 m = ma;
1845 n = ++na;
1846 count = acount;
1847 }
1848 else
1849 return false;
1850 }
1851 }
1852 }
1853 }
1854
1855
1856 #ifdef __VISUALC__
1857 #pragma warning(default:4706) // assignment within conditional expression
1858 #endif // VC++
wxWidgets (Impactor)