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fixed wxPluginLibrary unloading on failture (patch #962838)
[wxWidgets.git] / src / common / fileconf.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: fileconf.cpp
3 // Purpose: implementation of wxFileConfig derivation of wxConfig
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 07.04.98 (adapted from appconf.cpp)
7 // RCS-ID: $Id$
8 // Copyright: (c) 1997 Karsten Ballüder & Vadim Zeitlin
9 // Ballueder@usa.net <zeitlin@dptmaths.ens-cachan.fr>
10 // Licence: wxWindows licence
11 ///////////////////////////////////////////////////////////////////////////////
12
13 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
14 #pragma implementation "fileconf.h"
15 #endif
16
17 // ----------------------------------------------------------------------------
18 // headers
19 // ----------------------------------------------------------------------------
20
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif //__BORLANDC__
26
27 #if wxUSE_CONFIG && wxUSE_FILECONFIG
28
29 #ifndef WX_PRECOMP
30 #include "wx/string.h"
31 #include "wx/intl.h"
32 #endif //WX_PRECOMP
33
34 #include "wx/app.h"
35 #include "wx/dynarray.h"
36 #include "wx/file.h"
37 #include "wx/log.h"
38 #include "wx/textfile.h"
39 #include "wx/memtext.h"
40 #include "wx/config.h"
41 #include "wx/fileconf.h"
42
43 #if wxUSE_STREAMS
44 #include "wx/stream.h"
45 #endif // wxUSE_STREAMS
46
47 #include "wx/utils.h" // for wxGetHomeDir
48
49 #if defined(__WXMAC__)
50 #include "wx/mac/private.h" // includes mac headers
51 #endif
52
53 #if defined(__WXMSW__)
54 #include "wx/msw/private.h"
55 #endif //windows.h
56 #if defined(__WXPM__)
57 #define INCL_DOS
58 #include <os2.h>
59 #endif
60
61 #include <stdlib.h>
62 #include <ctype.h>
63
64 // headers needed for umask()
65 #ifdef __UNIX__
66 #include <sys/types.h>
67 #include <sys/stat.h>
68 #endif // __UNIX__
69
70 // ----------------------------------------------------------------------------
71 // macros
72 // ----------------------------------------------------------------------------
73 #define CONST_CAST ((wxFileConfig *)this)->
74
75 // ----------------------------------------------------------------------------
76 // constants
77 // ----------------------------------------------------------------------------
78
79 #ifndef MAX_PATH
80 #define MAX_PATH 512
81 #endif
82
83 // ----------------------------------------------------------------------------
84 // global functions declarations
85 // ----------------------------------------------------------------------------
86
87 // compare functions for sorting the arrays
88 static int LINKAGEMODE CompareEntries(wxFileConfigEntry *p1, wxFileConfigEntry *p2);
89 static int LINKAGEMODE CompareGroups(wxFileConfigGroup *p1, wxFileConfigGroup *p2);
90
91 // filter strings
92 static wxString FilterInValue(const wxString& str);
93 static wxString FilterOutValue(const wxString& str);
94
95 static wxString FilterInEntryName(const wxString& str);
96 static wxString FilterOutEntryName(const wxString& str);
97
98 // get the name to use in wxFileConfig ctor
99 static wxString GetAppName(const wxString& appname);
100
101 // ============================================================================
102 // private classes
103 // ============================================================================
104
105 // ----------------------------------------------------------------------------
106 // "template" array types
107 // ----------------------------------------------------------------------------
108
109 #ifdef WXMAKINGDLL_BASE
110 WX_DEFINE_SORTED_USER_EXPORTED_ARRAY(wxFileConfigEntry *, ArrayEntries,
111 WXDLLIMPEXP_BASE);
112 WX_DEFINE_SORTED_USER_EXPORTED_ARRAY(wxFileConfigGroup *, ArrayGroups,
113 WXDLLIMPEXP_BASE);
114 #else
115 WX_DEFINE_SORTED_ARRAY(wxFileConfigEntry *, ArrayEntries);
116 WX_DEFINE_SORTED_ARRAY(wxFileConfigGroup *, ArrayGroups);
117 #endif
118
119 // ----------------------------------------------------------------------------
120 // wxFileConfigLineList
121 // ----------------------------------------------------------------------------
122
123 // we store all lines of the local config file as a linked list in memory
124 class wxFileConfigLineList
125 {
126 public:
127 void SetNext(wxFileConfigLineList *pNext) { m_pNext = pNext; }
128 void SetPrev(wxFileConfigLineList *pPrev) { m_pPrev = pPrev; }
129
130 // ctor
131 wxFileConfigLineList(const wxString& str,
132 wxFileConfigLineList *pNext = NULL) : m_strLine(str)
133 { SetNext(pNext); SetPrev(NULL); }
134
135 // next/prev nodes in the linked list
136 wxFileConfigLineList *Next() const { return m_pNext; }
137 wxFileConfigLineList *Prev() const { return m_pPrev; }
138
139 // get/change lines text
140 void SetText(const wxString& str) { m_strLine = str; }
141 const wxString& Text() const { return m_strLine; }
142
143 private:
144 wxString m_strLine; // line contents
145 wxFileConfigLineList *m_pNext, // next node
146 *m_pPrev; // previous one
147
148 DECLARE_NO_COPY_CLASS(wxFileConfigLineList)
149 };
150
151 // ----------------------------------------------------------------------------
152 // wxFileConfigEntry: a name/value pair
153 // ----------------------------------------------------------------------------
154
155 class wxFileConfigEntry
156 {
157 private:
158 wxFileConfigGroup *m_pParent; // group that contains us
159
160 wxString m_strName, // entry name
161 m_strValue; // value
162 bool m_bDirty:1, // changed since last read?
163 m_bImmutable:1, // can be overriden locally?
164 m_bHasValue:1; // set after first call to SetValue()
165
166 int m_nLine; // used if m_pLine == NULL only
167
168 // pointer to our line in the linked list or NULL if it was found in global
169 // file (which we don't modify)
170 wxFileConfigLineList *m_pLine;
171
172 public:
173 wxFileConfigEntry(wxFileConfigGroup *pParent,
174 const wxString& strName, int nLine);
175
176 // simple accessors
177 const wxString& Name() const { return m_strName; }
178 const wxString& Value() const { return m_strValue; }
179 wxFileConfigGroup *Group() const { return m_pParent; }
180 bool IsDirty() const { return m_bDirty; }
181 bool IsImmutable() const { return m_bImmutable; }
182 bool IsLocal() const { return m_pLine != 0; }
183 int Line() const { return m_nLine; }
184 wxFileConfigLineList *
185 GetLine() const { return m_pLine; }
186
187 // modify entry attributes
188 void SetValue(const wxString& strValue, bool bUser = TRUE);
189 void SetDirty();
190 void SetLine(wxFileConfigLineList *pLine);
191
192 DECLARE_NO_COPY_CLASS(wxFileConfigEntry)
193 };
194
195 // ----------------------------------------------------------------------------
196 // wxFileConfigGroup: container of entries and other groups
197 // ----------------------------------------------------------------------------
198
199 class wxFileConfigGroup
200 {
201 private:
202 wxFileConfig *m_pConfig; // config object we belong to
203 wxFileConfigGroup *m_pParent; // parent group (NULL for root group)
204 ArrayEntries m_aEntries; // entries in this group
205 ArrayGroups m_aSubgroups; // subgroups
206 wxString m_strName; // group's name
207 bool m_bDirty; // if FALSE => all subgroups are not dirty
208 wxFileConfigLineList *m_pLine; // pointer to our line in the linked list
209 wxFileConfigEntry *m_pLastEntry; // last entry/subgroup of this group in the
210 wxFileConfigGroup *m_pLastGroup; // local file (we insert new ones after it)
211
212 // DeleteSubgroupByName helper
213 bool DeleteSubgroup(wxFileConfigGroup *pGroup);
214
215 public:
216 // ctor
217 wxFileConfigGroup(wxFileConfigGroup *pParent, const wxString& strName, wxFileConfig *);
218
219 // dtor deletes all entries and subgroups also
220 ~wxFileConfigGroup();
221
222 // simple accessors
223 const wxString& Name() const { return m_strName; }
224 wxFileConfigGroup *Parent() const { return m_pParent; }
225 wxFileConfig *Config() const { return m_pConfig; }
226 bool IsDirty() const { return m_bDirty; }
227
228 const ArrayEntries& Entries() const { return m_aEntries; }
229 const ArrayGroups& Groups() const { return m_aSubgroups; }
230 bool IsEmpty() const { return Entries().IsEmpty() && Groups().IsEmpty(); }
231
232 // find entry/subgroup (NULL if not found)
233 wxFileConfigGroup *FindSubgroup(const wxChar *szName) const;
234 wxFileConfigEntry *FindEntry (const wxChar *szName) const;
235
236 // delete entry/subgroup, return FALSE if doesn't exist
237 bool DeleteSubgroupByName(const wxChar *szName);
238 bool DeleteEntry(const wxChar *szName);
239
240 // create new entry/subgroup returning pointer to newly created element
241 wxFileConfigGroup *AddSubgroup(const wxString& strName);
242 wxFileConfigEntry *AddEntry (const wxString& strName, int nLine = wxNOT_FOUND);
243
244 // will also recursively set parent's dirty flag
245 void SetDirty();
246 void SetLine(wxFileConfigLineList *pLine);
247
248 // rename: no checks are done to ensure that the name is unique!
249 void Rename(const wxString& newName);
250
251 //
252 wxString GetFullName() const;
253
254 // get the last line belonging to an entry/subgroup of this group
255 wxFileConfigLineList *GetGroupLine(); // line which contains [group]
256 wxFileConfigLineList *GetLastEntryLine(); // after which our subgroups start
257 wxFileConfigLineList *GetLastGroupLine(); // after which the next group starts
258
259 // called by entries/subgroups when they're created/deleted
260 void SetLastEntry(wxFileConfigEntry *pEntry);
261 void SetLastGroup(wxFileConfigGroup *pGroup)
262 { m_pLastGroup = pGroup; }
263
264 DECLARE_NO_COPY_CLASS(wxFileConfigGroup)
265 };
266
267 // ============================================================================
268 // implementation
269 // ============================================================================
270
271 // ----------------------------------------------------------------------------
272 // static functions
273 // ----------------------------------------------------------------------------
274 wxString wxFileConfig::GetGlobalDir()
275 {
276 wxString strDir;
277
278 #ifdef __VMS__ // Note if __VMS is defined __UNIX is also defined
279 strDir = wxT("sys$manager:");
280 #elif defined(__WXMAC__)
281 strDir = wxMacFindFolder( (short) kOnSystemDisk, kPreferencesFolderType, kDontCreateFolder ) ;
282 #elif defined( __UNIX__ )
283 strDir = wxT("/etc/");
284 #elif defined(__WXPM__)
285 ULONG aulSysInfo[QSV_MAX] = {0};
286 UINT drive;
287 APIRET rc;
288
289 rc = DosQuerySysInfo( 1L, QSV_MAX, (PVOID)aulSysInfo, sizeof(ULONG)*QSV_MAX);
290 if (rc == 0)
291 {
292 drive = aulSysInfo[QSV_BOOT_DRIVE - 1];
293 strDir.Printf(wxT("%c:\\OS2\\"), 'A'+drive-1);
294 }
295 #elif defined(__WXSTUBS__)
296 wxASSERT_MSG( FALSE, wxT("TODO") ) ;
297 #elif defined(__DOS__)
298 // There's no such thing as global cfg dir in MS-DOS, let's return
299 // current directory (FIXME_MGL?)
300 return wxT(".\\");
301 #else // Windows
302 wxChar szWinDir[MAX_PATH];
303 ::GetWindowsDirectory(szWinDir, MAX_PATH);
304
305 strDir = szWinDir;
306 strDir << wxT('\\');
307 #endif // Unix/Windows
308
309 return strDir;
310 }
311
312 wxString wxFileConfig::GetLocalDir()
313 {
314 wxString strDir;
315
316 #if defined(__WXMAC__) || defined(__DOS__)
317 // no local dir concept on Mac OS 9 or MS-DOS
318 return GetGlobalDir() ;
319 #else
320 wxGetHomeDir(&strDir);
321
322 #ifdef __UNIX__
323 #ifdef __VMS
324 if (strDir.Last() != wxT(']'))
325 #endif
326 if (strDir.Last() != wxT('/')) strDir << wxT('/');
327 #else
328 if (strDir.Last() != wxT('\\')) strDir << wxT('\\');
329 #endif
330 #endif
331
332 return strDir;
333 }
334
335 wxString wxFileConfig::GetGlobalFileName(const wxChar *szFile)
336 {
337 wxString str = GetGlobalDir();
338 str << szFile;
339
340 if ( wxStrchr(szFile, wxT('.')) == NULL )
341 #if defined( __WXMAC__ )
342 str << wxT(" Preferences") ;
343 #elif defined( __UNIX__ )
344 str << wxT(".conf");
345 #else // Windows
346 str << wxT(".ini");
347 #endif // UNIX/Win
348
349 return str;
350 }
351
352 wxString wxFileConfig::GetLocalFileName(const wxChar *szFile)
353 {
354 #ifdef __VMS__
355 // On VMS I saw the problem that the home directory was appended
356 // twice for the configuration file. Does that also happen for
357 // other platforms?
358 wxString str = wxT( '.' );
359 #else
360 wxString str = GetLocalDir();
361 #endif
362
363 #if defined( __UNIX__ ) && !defined( __VMS ) && !defined( __WXMAC__ )
364 str << wxT('.');
365 #endif
366
367 str << szFile;
368
369 #if defined(__WINDOWS__) || defined(__DOS__)
370 if ( wxStrchr(szFile, wxT('.')) == NULL )
371 str << wxT(".ini");
372 #endif
373
374 #ifdef __WXMAC__
375 str << wxT(" Preferences") ;
376 #endif
377
378 return str;
379 }
380
381 // ----------------------------------------------------------------------------
382 // ctor
383 // ----------------------------------------------------------------------------
384
385 void wxFileConfig::Init()
386 {
387 m_pCurrentGroup =
388 m_pRootGroup = new wxFileConfigGroup(NULL, wxT(""), this);
389
390 m_linesHead =
391 m_linesTail = NULL;
392
393 // It's not an error if (one of the) file(s) doesn't exist.
394
395 // parse the global file
396 if ( !m_strGlobalFile.IsEmpty() && wxFile::Exists(m_strGlobalFile) )
397 {
398 wxTextFile fileGlobal(m_strGlobalFile);
399
400 if ( fileGlobal.Open(m_conv/*ignored in ANSI build*/) )
401 {
402 Parse(fileGlobal, FALSE /* global */);
403 SetRootPath();
404 }
405 else
406 {
407 wxLogWarning(_("can't open global configuration file '%s'."), m_strGlobalFile.c_str());
408 }
409 }
410
411 // parse the local file
412 if ( !m_strLocalFile.IsEmpty() && wxFile::Exists(m_strLocalFile) )
413 {
414 wxTextFile fileLocal(m_strLocalFile);
415 if ( fileLocal.Open(m_conv/*ignored in ANSI build*/) )
416 {
417 Parse(fileLocal, TRUE /* local */);
418 SetRootPath();
419 }
420 else
421 {
422 wxLogWarning(_("can't open user configuration file '%s'."), m_strLocalFile.c_str() );
423 }
424 }
425 }
426
427 // constructor supports creation of wxFileConfig objects of any type
428 wxFileConfig::wxFileConfig(const wxString& appName, const wxString& vendorName,
429 const wxString& strLocal, const wxString& strGlobal,
430 long style, wxMBConv& conv)
431 : wxConfigBase(::GetAppName(appName), vendorName,
432 strLocal, strGlobal,
433 style),
434 m_strLocalFile(strLocal), m_strGlobalFile(strGlobal),
435 m_conv(conv)
436 {
437 // Make up names for files if empty
438 if ( m_strLocalFile.IsEmpty() && (style & wxCONFIG_USE_LOCAL_FILE) )
439 m_strLocalFile = GetLocalFileName(GetAppName());
440
441 if ( m_strGlobalFile.IsEmpty() && (style & wxCONFIG_USE_GLOBAL_FILE) )
442 m_strGlobalFile = GetGlobalFileName(GetAppName());
443
444 // Check if styles are not supplied, but filenames are, in which case
445 // add the correct styles.
446 if ( !m_strLocalFile.IsEmpty() )
447 SetStyle(GetStyle() | wxCONFIG_USE_LOCAL_FILE);
448
449 if ( !m_strGlobalFile.IsEmpty() )
450 SetStyle(GetStyle() | wxCONFIG_USE_GLOBAL_FILE);
451
452 // if the path is not absolute, prepend the standard directory to it
453 // UNLESS wxCONFIG_USE_RELATIVE_PATH style is set
454 if ( !(style & wxCONFIG_USE_RELATIVE_PATH) )
455 {
456 if ( !m_strLocalFile.IsEmpty() && !wxIsAbsolutePath(m_strLocalFile) )
457 {
458 wxString strLocal = m_strLocalFile;
459 m_strLocalFile = GetLocalDir();
460 m_strLocalFile << strLocal;
461 }
462
463 if ( !m_strGlobalFile.IsEmpty() && !wxIsAbsolutePath(m_strGlobalFile) )
464 {
465 wxString strGlobal = m_strGlobalFile;
466 m_strGlobalFile = GetGlobalDir();
467 m_strGlobalFile << strGlobal;
468 }
469 }
470
471 SetUmask(-1);
472
473 Init();
474 }
475
476 #if wxUSE_STREAMS
477
478 wxFileConfig::wxFileConfig(wxInputStream &inStream, wxMBConv& conv)
479 : m_conv(conv)
480 {
481 // always local_file when this constructor is called (?)
482 SetStyle(GetStyle() | wxCONFIG_USE_LOCAL_FILE);
483
484 m_pCurrentGroup =
485 m_pRootGroup = new wxFileConfigGroup(NULL, wxT(""), this);
486
487 m_linesHead =
488 m_linesTail = NULL;
489
490 // translate everything to the current (platform-dependent) line
491 // termination character
492 wxString strTrans;
493 {
494 wxString strTmp;
495
496 char buf[1024];
497 do
498 {
499 inStream.Read(buf, WXSIZEOF(buf));
500
501 const wxStreamError err = inStream.GetLastError();
502
503 if ( err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF )
504 {
505 wxLogError(_("Error reading config options."));
506 break;
507 }
508
509 strTmp.append(wxConvertMB2WX(buf), inStream.LastRead());
510 }
511 while ( !inStream.Eof() );
512
513 strTrans = wxTextBuffer::Translate(strTmp);
514 }
515
516 wxMemoryText memText;
517
518 // Now we can add the text to the memory text. To do this we extract line
519 // by line from the translated string, until we've reached the end.
520 //
521 // VZ: all this is horribly inefficient, we should do the translation on
522 // the fly in one pass saving both memory and time (TODO)
523
524 const wxChar *pEOL = wxTextBuffer::GetEOL(wxTextBuffer::typeDefault);
525 const size_t EOLLen = wxStrlen(pEOL);
526
527 int posLineStart = strTrans.Find(pEOL);
528 while ( posLineStart != -1 )
529 {
530 wxString line(strTrans.Left(posLineStart));
531
532 memText.AddLine(line);
533
534 strTrans = strTrans.Mid(posLineStart + EOLLen);
535
536 posLineStart = strTrans.Find(pEOL);
537 }
538
539 // also add whatever we have left in the translated string.
540 memText.AddLine(strTrans);
541
542 // Finally we can parse it all.
543 Parse(memText, TRUE /* local */);
544
545 SetRootPath();
546 }
547
548 #endif // wxUSE_STREAMS
549
550 void wxFileConfig::CleanUp()
551 {
552 delete m_pRootGroup;
553
554 wxFileConfigLineList *pCur = m_linesHead;
555 while ( pCur != NULL ) {
556 wxFileConfigLineList *pNext = pCur->Next();
557 delete pCur;
558 pCur = pNext;
559 }
560 }
561
562 wxFileConfig::~wxFileConfig()
563 {
564 Flush();
565
566 CleanUp();
567 }
568
569 // ----------------------------------------------------------------------------
570 // parse a config file
571 // ----------------------------------------------------------------------------
572
573 void wxFileConfig::Parse(wxTextBuffer& buffer, bool bLocal)
574 {
575 const wxChar *pStart;
576 const wxChar *pEnd;
577 wxString strLine;
578
579 size_t nLineCount = buffer.GetLineCount();
580
581 for ( size_t n = 0; n < nLineCount; n++ )
582 {
583 strLine = buffer[n];
584
585 // add the line to linked list
586 if ( bLocal )
587 {
588 LineListAppend(strLine);
589
590 // let the root group have it start line as well
591 if ( !n )
592 {
593 m_pCurrentGroup->SetLine(m_linesTail);
594 }
595 }
596
597
598 // skip leading spaces
599 for ( pStart = strLine; wxIsspace(*pStart); pStart++ )
600 ;
601
602 // skip blank/comment lines
603 if ( *pStart == wxT('\0')|| *pStart == wxT(';') || *pStart == wxT('#') )
604 continue;
605
606 if ( *pStart == wxT('[') ) { // a new group
607 pEnd = pStart;
608
609 while ( *++pEnd != wxT(']') ) {
610 if ( *pEnd == wxT('\\') ) {
611 // the next char is escaped, so skip it even if it is ']'
612 pEnd++;
613 }
614
615 if ( *pEnd == wxT('\n') || *pEnd == wxT('\0') ) {
616 // we reached the end of line, break out of the loop
617 break;
618 }
619 }
620
621 if ( *pEnd != wxT(']') ) {
622 wxLogError(_("file '%s': unexpected character %c at line %d."),
623 buffer.GetName(), *pEnd, n + 1);
624 continue; // skip this line
625 }
626
627 // group name here is always considered as abs path
628 wxString strGroup;
629 pStart++;
630 strGroup << wxCONFIG_PATH_SEPARATOR
631 << FilterInEntryName(wxString(pStart, pEnd - pStart));
632
633 // will create it if doesn't yet exist
634 SetPath(strGroup);
635
636 if ( bLocal )
637 {
638 if ( m_pCurrentGroup->Parent() )
639 m_pCurrentGroup->Parent()->SetLastGroup(m_pCurrentGroup);
640 m_pCurrentGroup->SetLine(m_linesTail);
641 }
642
643 // check that there is nothing except comments left on this line
644 bool bCont = TRUE;
645 while ( *++pEnd != wxT('\0') && bCont ) {
646 switch ( *pEnd ) {
647 case wxT('#'):
648 case wxT(';'):
649 bCont = FALSE;
650 break;
651
652 case wxT(' '):
653 case wxT('\t'):
654 // ignore whitespace ('\n' impossible here)
655 break;
656
657 default:
658 wxLogWarning(_("file '%s', line %d: '%s' ignored after group header."),
659 buffer.GetName(), n + 1, pEnd);
660 bCont = FALSE;
661 }
662 }
663 }
664 else { // a key
665 const wxChar *pEnd = pStart;
666 while ( *pEnd && *pEnd != wxT('=') /* && !wxIsspace(*pEnd)*/ ) {
667 if ( *pEnd == wxT('\\') ) {
668 // next character may be space or not - still take it because it's
669 // quoted (unless there is nothing)
670 pEnd++;
671 if ( !*pEnd ) {
672 // the error message will be given below anyhow
673 break;
674 }
675 }
676
677 pEnd++;
678 }
679
680 wxString strKey(FilterInEntryName(wxString(pStart, pEnd).Trim()));
681
682 // skip whitespace
683 while ( wxIsspace(*pEnd) )
684 pEnd++;
685
686 if ( *pEnd++ != wxT('=') ) {
687 wxLogError(_("file '%s', line %d: '=' expected."),
688 buffer.GetName(), n + 1);
689 }
690 else {
691 wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(strKey);
692
693 if ( pEntry == NULL ) {
694 // new entry
695 pEntry = m_pCurrentGroup->AddEntry(strKey, n);
696 }
697 else {
698 if ( bLocal && pEntry->IsImmutable() ) {
699 // immutable keys can't be changed by user
700 wxLogWarning(_("file '%s', line %d: value for immutable key '%s' ignored."),
701 buffer.GetName(), n + 1, strKey.c_str());
702 continue;
703 }
704 // the condition below catches the cases (a) and (b) but not (c):
705 // (a) global key found second time in global file
706 // (b) key found second (or more) time in local file
707 // (c) key from global file now found in local one
708 // which is exactly what we want.
709 else if ( !bLocal || pEntry->IsLocal() ) {
710 wxLogWarning(_("file '%s', line %d: key '%s' was first found at line %d."),
711 buffer.GetName(), n + 1, strKey.c_str(), pEntry->Line());
712
713 }
714 }
715
716 if ( bLocal )
717 pEntry->SetLine(m_linesTail);
718
719 // skip whitespace
720 while ( wxIsspace(*pEnd) )
721 pEnd++;
722
723 wxString value = pEnd;
724 if ( !(GetStyle() & wxCONFIG_USE_NO_ESCAPE_CHARACTERS) )
725 value = FilterInValue(value);
726
727 pEntry->SetValue(value, FALSE);
728 }
729 }
730 }
731 }
732
733 // ----------------------------------------------------------------------------
734 // set/retrieve path
735 // ----------------------------------------------------------------------------
736
737 void wxFileConfig::SetRootPath()
738 {
739 m_strPath.Empty();
740 m_pCurrentGroup = m_pRootGroup;
741 }
742
743 void wxFileConfig::SetPath(const wxString& strPath)
744 {
745 wxArrayString aParts;
746
747 if ( strPath.IsEmpty() ) {
748 SetRootPath();
749 return;
750 }
751
752 if ( strPath[0] == wxCONFIG_PATH_SEPARATOR ) {
753 // absolute path
754 wxSplitPath(aParts, strPath);
755 }
756 else {
757 // relative path, combine with current one
758 wxString strFullPath = m_strPath;
759 strFullPath << wxCONFIG_PATH_SEPARATOR << strPath;
760 wxSplitPath(aParts, strFullPath);
761 }
762
763 // change current group
764 size_t n;
765 m_pCurrentGroup = m_pRootGroup;
766 for ( n = 0; n < aParts.Count(); n++ ) {
767 wxFileConfigGroup *pNextGroup = m_pCurrentGroup->FindSubgroup(aParts[n]);
768 if ( pNextGroup == NULL )
769 pNextGroup = m_pCurrentGroup->AddSubgroup(aParts[n]);
770 m_pCurrentGroup = pNextGroup;
771 }
772
773 // recombine path parts in one variable
774 m_strPath.Empty();
775 for ( n = 0; n < aParts.Count(); n++ ) {
776 m_strPath << wxCONFIG_PATH_SEPARATOR << aParts[n];
777 }
778 }
779
780 // ----------------------------------------------------------------------------
781 // enumeration
782 // ----------------------------------------------------------------------------
783
784 bool wxFileConfig::GetFirstGroup(wxString& str, long& lIndex) const
785 {
786 lIndex = 0;
787 return GetNextGroup(str, lIndex);
788 }
789
790 bool wxFileConfig::GetNextGroup (wxString& str, long& lIndex) const
791 {
792 if ( size_t(lIndex) < m_pCurrentGroup->Groups().Count() ) {
793 str = m_pCurrentGroup->Groups()[(size_t)lIndex++]->Name();
794 return TRUE;
795 }
796 else
797 return FALSE;
798 }
799
800 bool wxFileConfig::GetFirstEntry(wxString& str, long& lIndex) const
801 {
802 lIndex = 0;
803 return GetNextEntry(str, lIndex);
804 }
805
806 bool wxFileConfig::GetNextEntry (wxString& str, long& lIndex) const
807 {
808 if ( size_t(lIndex) < m_pCurrentGroup->Entries().Count() ) {
809 str = m_pCurrentGroup->Entries()[(size_t)lIndex++]->Name();
810 return TRUE;
811 }
812 else
813 return FALSE;
814 }
815
816 size_t wxFileConfig::GetNumberOfEntries(bool bRecursive) const
817 {
818 size_t n = m_pCurrentGroup->Entries().Count();
819 if ( bRecursive ) {
820 wxFileConfigGroup *pOldCurrentGroup = m_pCurrentGroup;
821 size_t nSubgroups = m_pCurrentGroup->Groups().Count();
822 for ( size_t nGroup = 0; nGroup < nSubgroups; nGroup++ ) {
823 CONST_CAST m_pCurrentGroup = m_pCurrentGroup->Groups()[nGroup];
824 n += GetNumberOfEntries(TRUE);
825 CONST_CAST m_pCurrentGroup = pOldCurrentGroup;
826 }
827 }
828
829 return n;
830 }
831
832 size_t wxFileConfig::GetNumberOfGroups(bool bRecursive) const
833 {
834 size_t n = m_pCurrentGroup->Groups().Count();
835 if ( bRecursive ) {
836 wxFileConfigGroup *pOldCurrentGroup = m_pCurrentGroup;
837 size_t nSubgroups = m_pCurrentGroup->Groups().Count();
838 for ( size_t nGroup = 0; nGroup < nSubgroups; nGroup++ ) {
839 CONST_CAST m_pCurrentGroup = m_pCurrentGroup->Groups()[nGroup];
840 n += GetNumberOfGroups(TRUE);
841 CONST_CAST m_pCurrentGroup = pOldCurrentGroup;
842 }
843 }
844
845 return n;
846 }
847
848 // ----------------------------------------------------------------------------
849 // tests for existence
850 // ----------------------------------------------------------------------------
851
852 bool wxFileConfig::HasGroup(const wxString& strName) const
853 {
854 wxConfigPathChanger path(this, strName);
855
856 wxFileConfigGroup *pGroup = m_pCurrentGroup->FindSubgroup(path.Name());
857 return pGroup != NULL;
858 }
859
860 bool wxFileConfig::HasEntry(const wxString& strName) const
861 {
862 wxConfigPathChanger path(this, strName);
863
864 wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name());
865 return pEntry != NULL;
866 }
867
868 // ----------------------------------------------------------------------------
869 // read/write values
870 // ----------------------------------------------------------------------------
871
872 bool wxFileConfig::DoReadString(const wxString& key, wxString* pStr) const
873 {
874 wxConfigPathChanger path(this, key);
875
876 wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name());
877 if (pEntry == NULL) {
878 return FALSE;
879 }
880
881 *pStr = pEntry->Value();
882
883 return TRUE;
884 }
885
886 bool wxFileConfig::DoReadLong(const wxString& key, long *pl) const
887 {
888 wxString str;
889 if ( !Read(key, &str) )
890 return FALSE;
891
892 // extra spaces shouldn't prevent us from reading numeric values
893 str.Trim();
894
895 return str.ToLong(pl);
896 }
897
898 bool wxFileConfig::DoWriteString(const wxString& key, const wxString& szValue)
899 {
900 wxConfigPathChanger path(this, key);
901 wxString strName = path.Name();
902
903 wxLogTrace( _T("wxFileConfig"),
904 _T(" Writing String '%s' = '%s' to Group '%s'"),
905 strName.c_str(),
906 szValue.c_str(),
907 GetPath().c_str() );
908
909 if ( strName.IsEmpty() )
910 {
911 // setting the value of a group is an error
912
913 wxASSERT_MSG( wxIsEmpty(szValue), wxT("can't set value of a group!") );
914
915 // ... except if it's empty in which case it's a way to force it's creation
916
917 wxLogTrace( _T("wxFileConfig"),
918 _T(" Creating group %s"),
919 m_pCurrentGroup->Name().c_str() );
920
921 m_pCurrentGroup->SetDirty();
922
923 // this will add a line for this group if it didn't have it before
924
925 (void)m_pCurrentGroup->GetGroupLine();
926 }
927 else
928 {
929 // writing an entry
930 // check that the name is reasonable
931
932 if ( strName[0u] == wxCONFIG_IMMUTABLE_PREFIX )
933 {
934 wxLogError( _("Config entry name cannot start with '%c'."),
935 wxCONFIG_IMMUTABLE_PREFIX);
936 return FALSE;
937 }
938
939 wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(strName);
940
941 if ( pEntry == 0 )
942 {
943 wxLogTrace( _T("wxFileConfig"),
944 _T(" Adding Entry %s"),
945 strName.c_str() );
946 pEntry = m_pCurrentGroup->AddEntry(strName);
947 }
948
949 wxLogTrace( _T("wxFileConfig"),
950 _T(" Setting value %s"),
951 szValue.c_str() );
952 pEntry->SetValue(szValue);
953 }
954
955 return TRUE;
956 }
957
958 bool wxFileConfig::DoWriteLong(const wxString& key, long lValue)
959 {
960 return Write(key, wxString::Format(_T("%ld"), lValue));
961 }
962
963 bool wxFileConfig::Flush(bool /* bCurrentOnly */)
964 {
965 if ( LineListIsEmpty() || !m_pRootGroup->IsDirty() || !m_strLocalFile )
966 return TRUE;
967
968 #ifdef __UNIX__
969 // set the umask if needed
970 mode_t umaskOld = 0;
971 if ( m_umask != -1 )
972 {
973 umaskOld = umask((mode_t)m_umask);
974 }
975 #endif // __UNIX__
976
977 wxTempFile file(m_strLocalFile);
978
979 if ( !file.IsOpened() )
980 {
981 wxLogError(_("can't open user configuration file."));
982 return FALSE;
983 }
984
985 // write all strings to file
986 for ( wxFileConfigLineList *p = m_linesHead; p != NULL; p = p->Next() )
987 {
988 wxString line = p->Text();
989 line += wxTextFile::GetEOL();
990 if ( !file.Write(line, m_conv) )
991 {
992 wxLogError(_("can't write user configuration file."));
993 return FALSE;
994 }
995 }
996
997 bool ret = file.Commit();
998
999 #if defined(__WXMAC__)
1000 if ( ret )
1001 {
1002 FSSpec spec ;
1003
1004 wxMacFilename2FSSpec( m_strLocalFile , &spec ) ;
1005 FInfo finfo ;
1006 if ( FSpGetFInfo( &spec , &finfo ) == noErr )
1007 {
1008 finfo.fdType = 'TEXT' ;
1009 finfo.fdCreator = 'ttxt' ;
1010 FSpSetFInfo( &spec , &finfo ) ;
1011 }
1012 }
1013 #endif // __WXMAC__
1014
1015 #ifdef __UNIX__
1016 // restore the old umask if we changed it
1017 if ( m_umask != -1 )
1018 {
1019 (void)umask(umaskOld);
1020 }
1021 #endif // __UNIX__
1022
1023 return ret;
1024 }
1025
1026 // ----------------------------------------------------------------------------
1027 // renaming groups/entries
1028 // ----------------------------------------------------------------------------
1029
1030 bool wxFileConfig::RenameEntry(const wxString& oldName,
1031 const wxString& newName)
1032 {
1033 // check that the entry exists
1034 wxFileConfigEntry *oldEntry = m_pCurrentGroup->FindEntry(oldName);
1035 if ( !oldEntry )
1036 return FALSE;
1037
1038 // check that the new entry doesn't already exist
1039 if ( m_pCurrentGroup->FindEntry(newName) )
1040 return FALSE;
1041
1042 // delete the old entry, create the new one
1043 wxString value = oldEntry->Value();
1044 if ( !m_pCurrentGroup->DeleteEntry(oldName) )
1045 return FALSE;
1046
1047 wxFileConfigEntry *newEntry = m_pCurrentGroup->AddEntry(newName);
1048 newEntry->SetValue(value);
1049
1050 return TRUE;
1051 }
1052
1053 bool wxFileConfig::RenameGroup(const wxString& oldName,
1054 const wxString& newName)
1055 {
1056 // check that the group exists
1057 wxFileConfigGroup *group = m_pCurrentGroup->FindSubgroup(oldName);
1058 if ( !group )
1059 return FALSE;
1060
1061 // check that the new group doesn't already exist
1062 if ( m_pCurrentGroup->FindSubgroup(newName) )
1063 return FALSE;
1064
1065 group->Rename(newName);
1066
1067 return TRUE;
1068 }
1069
1070 // ----------------------------------------------------------------------------
1071 // delete groups/entries
1072 // ----------------------------------------------------------------------------
1073
1074 bool wxFileConfig::DeleteEntry(const wxString& key, bool bGroupIfEmptyAlso)
1075 {
1076 wxConfigPathChanger path(this, key);
1077
1078 if ( !m_pCurrentGroup->DeleteEntry(path.Name()) )
1079 return FALSE;
1080
1081 if ( bGroupIfEmptyAlso && m_pCurrentGroup->IsEmpty() ) {
1082 if ( m_pCurrentGroup != m_pRootGroup ) {
1083 wxFileConfigGroup *pGroup = m_pCurrentGroup;
1084 SetPath(wxT("..")); // changes m_pCurrentGroup!
1085 m_pCurrentGroup->DeleteSubgroupByName(pGroup->Name());
1086 }
1087 //else: never delete the root group
1088 }
1089
1090 return TRUE;
1091 }
1092
1093 bool wxFileConfig::DeleteGroup(const wxString& key)
1094 {
1095 wxConfigPathChanger path(this, key);
1096
1097 return m_pCurrentGroup->DeleteSubgroupByName(path.Name());
1098 }
1099
1100 bool wxFileConfig::DeleteAll()
1101 {
1102 CleanUp();
1103
1104 if ( wxFile::Exists(m_strLocalFile) && wxRemove(m_strLocalFile) == -1 )
1105 {
1106 wxLogSysError(_("can't delete user configuration file '%s'"), m_strLocalFile.c_str());
1107 return FALSE;
1108 }
1109
1110 m_strLocalFile = m_strGlobalFile = wxT("");
1111 Init();
1112
1113 return TRUE;
1114 }
1115
1116 // ----------------------------------------------------------------------------
1117 // linked list functions
1118 // ----------------------------------------------------------------------------
1119
1120 // append a new line to the end of the list
1121
1122 wxFileConfigLineList *wxFileConfig::LineListAppend(const wxString& str)
1123 {
1124 wxLogTrace( _T("wxFileConfig"),
1125 _T(" ** Adding Line '%s'"),
1126 str.c_str() );
1127 wxLogTrace( _T("wxFileConfig"),
1128 _T(" head: %s"),
1129 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1130 wxLogTrace( _T("wxFileConfig"),
1131 _T(" tail: %s"),
1132 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1133
1134 wxFileConfigLineList *pLine = new wxFileConfigLineList(str);
1135
1136 if ( m_linesTail == NULL )
1137 {
1138 // list is empty
1139 m_linesHead = pLine;
1140 }
1141 else
1142 {
1143 // adjust pointers
1144 m_linesTail->SetNext(pLine);
1145 pLine->SetPrev(m_linesTail);
1146 }
1147
1148 m_linesTail = pLine;
1149
1150 wxLogTrace( _T("wxFileConfig"),
1151 _T(" head: %s"),
1152 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1153 wxLogTrace( _T("wxFileConfig"),
1154 _T(" tail: %s"),
1155 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1156
1157 return m_linesTail;
1158 }
1159
1160 // insert a new line after the given one or in the very beginning if !pLine
1161 wxFileConfigLineList *wxFileConfig::LineListInsert(const wxString& str,
1162 wxFileConfigLineList *pLine)
1163 {
1164 wxLogTrace( _T("wxFileConfig"),
1165 _T(" ** Inserting Line '%s' after '%s'"),
1166 str.c_str(),
1167 ((pLine) ? pLine->Text().c_str() : wxEmptyString) );
1168 wxLogTrace( _T("wxFileConfig"),
1169 _T(" head: %s"),
1170 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1171 wxLogTrace( _T("wxFileConfig"),
1172 _T(" tail: %s"),
1173 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1174
1175 if ( pLine == m_linesTail )
1176 return LineListAppend(str);
1177
1178 wxFileConfigLineList *pNewLine = new wxFileConfigLineList(str);
1179 if ( pLine == NULL )
1180 {
1181 // prepend to the list
1182 pNewLine->SetNext(m_linesHead);
1183 m_linesHead->SetPrev(pNewLine);
1184 m_linesHead = pNewLine;
1185 }
1186 else
1187 {
1188 // insert before pLine
1189 wxFileConfigLineList *pNext = pLine->Next();
1190 pNewLine->SetNext(pNext);
1191 pNewLine->SetPrev(pLine);
1192 pNext->SetPrev(pNewLine);
1193 pLine->SetNext(pNewLine);
1194 }
1195
1196 wxLogTrace( _T("wxFileConfig"),
1197 _T(" head: %s"),
1198 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1199 wxLogTrace( _T("wxFileConfig"),
1200 _T(" tail: %s"),
1201 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1202
1203 return pNewLine;
1204 }
1205
1206 void wxFileConfig::LineListRemove(wxFileConfigLineList *pLine)
1207 {
1208 wxLogTrace( _T("wxFileConfig"),
1209 _T(" ** Removing Line '%s'"),
1210 pLine->Text().c_str() );
1211 wxLogTrace( _T("wxFileConfig"),
1212 _T(" head: %s"),
1213 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1214 wxLogTrace( _T("wxFileConfig"),
1215 _T(" tail: %s"),
1216 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1217
1218 wxFileConfigLineList *pPrev = pLine->Prev(),
1219 *pNext = pLine->Next();
1220
1221 // first entry?
1222
1223 if ( pPrev == NULL )
1224 m_linesHead = pNext;
1225 else
1226 pPrev->SetNext(pNext);
1227
1228 // last entry?
1229
1230 if ( pNext == NULL )
1231 m_linesTail = pPrev;
1232 else
1233 pNext->SetPrev(pPrev);
1234
1235 wxLogTrace( _T("wxFileConfig"),
1236 _T(" head: %s"),
1237 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1238 wxLogTrace( _T("wxFileConfig"),
1239 _T(" tail: %s"),
1240 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1241
1242 delete pLine;
1243 }
1244
1245 bool wxFileConfig::LineListIsEmpty()
1246 {
1247 return m_linesHead == NULL;
1248 }
1249
1250 // ============================================================================
1251 // wxFileConfig::wxFileConfigGroup
1252 // ============================================================================
1253
1254 // ----------------------------------------------------------------------------
1255 // ctor/dtor
1256 // ----------------------------------------------------------------------------
1257
1258 // ctor
1259 wxFileConfigGroup::wxFileConfigGroup(wxFileConfigGroup *pParent,
1260 const wxString& strName,
1261 wxFileConfig *pConfig)
1262 : m_aEntries(CompareEntries),
1263 m_aSubgroups(CompareGroups),
1264 m_strName(strName)
1265 {
1266 m_pConfig = pConfig;
1267 m_pParent = pParent;
1268 m_bDirty = FALSE;
1269 m_pLine = NULL;
1270
1271 m_pLastEntry = NULL;
1272 m_pLastGroup = NULL;
1273 }
1274
1275 // dtor deletes all children
1276 wxFileConfigGroup::~wxFileConfigGroup()
1277 {
1278 // entries
1279 size_t n, nCount = m_aEntries.Count();
1280 for ( n = 0; n < nCount; n++ )
1281 delete m_aEntries[n];
1282
1283 // subgroups
1284 nCount = m_aSubgroups.Count();
1285 for ( n = 0; n < nCount; n++ )
1286 delete m_aSubgroups[n];
1287 }
1288
1289 // ----------------------------------------------------------------------------
1290 // line
1291 // ----------------------------------------------------------------------------
1292
1293 void wxFileConfigGroup::SetLine(wxFileConfigLineList *pLine)
1294 {
1295 wxASSERT( m_pLine == 0 ); // shouldn't be called twice
1296 m_pLine = pLine;
1297 }
1298
1299 /*
1300 This is a bit complicated, so let me explain it in details. All lines that
1301 were read from the local file (the only one we will ever modify) are stored
1302 in a (doubly) linked list. Our problem is to know at which position in this
1303 list should we insert the new entries/subgroups. To solve it we keep three
1304 variables for each group: m_pLine, m_pLastEntry and m_pLastGroup.
1305
1306 m_pLine points to the line containing "[group_name]"
1307 m_pLastEntry points to the last entry of this group in the local file.
1308 m_pLastGroup subgroup
1309
1310 Initially, they're NULL all three. When the group (an entry/subgroup) is read
1311 from the local file, the corresponding variable is set. However, if the group
1312 was read from the global file and then modified or created by the application
1313 these variables are still NULL and we need to create the corresponding lines.
1314 See the following functions (and comments preceding them) for the details of
1315 how we do it.
1316
1317 Also, when our last entry/group are deleted we need to find the new last
1318 element - the code in DeleteEntry/Subgroup does this by backtracking the list
1319 of lines until it either founds an entry/subgroup (and this is the new last
1320 element) or the m_pLine of the group, in which case there are no more entries
1321 (or subgroups) left and m_pLast<element> becomes NULL.
1322
1323 NB: This last problem could be avoided for entries if we added new entries
1324 immediately after m_pLine, but in this case the entries would appear
1325 backwards in the config file (OTOH, it's not that important) and as we
1326 would still need to do it for the subgroups the code wouldn't have been
1327 significantly less complicated.
1328 */
1329
1330 // Return the line which contains "[our name]". If we're still not in the list,
1331 // add our line to it immediately after the last line of our parent group if we
1332 // have it or in the very beginning if we're the root group.
1333 wxFileConfigLineList *wxFileConfigGroup::GetGroupLine()
1334 {
1335 wxLogTrace( _T("wxFileConfig"),
1336 _T(" GetGroupLine() for Group '%s'"),
1337 Name().c_str() );
1338
1339 if ( !m_pLine )
1340 {
1341 wxLogTrace( _T("wxFileConfig"),
1342 _T(" Getting Line item pointer") );
1343
1344 wxFileConfigGroup *pParent = Parent();
1345
1346 // this group wasn't present in local config file, add it now
1347 if ( pParent )
1348 {
1349 wxLogTrace( _T("wxFileConfig"),
1350 _T(" checking parent '%s'"),
1351 pParent->Name().c_str() );
1352
1353 wxString strFullName;
1354
1355 // add 1 to the name because we don't want to start with '/'
1356 strFullName << wxT("[")
1357 << FilterOutEntryName(GetFullName().c_str() + 1)
1358 << wxT("]");
1359 m_pLine = m_pConfig->LineListInsert(strFullName,
1360 pParent->GetLastGroupLine());
1361 pParent->SetLastGroup(this); // we're surely after all the others
1362 }
1363 //else: this is the root group and so we return NULL because we don't
1364 // have any group line
1365 }
1366
1367 return m_pLine;
1368 }
1369
1370 // Return the last line belonging to the subgroups of this group (after which
1371 // we can add a new subgroup), if we don't have any subgroups or entries our
1372 // last line is the group line (m_pLine) itself.
1373 wxFileConfigLineList *wxFileConfigGroup::GetLastGroupLine()
1374 {
1375 // if we have any subgroups, our last line is the last line of the last
1376 // subgroup
1377 if ( m_pLastGroup )
1378 {
1379 wxFileConfigLineList *pLine = m_pLastGroup->GetLastGroupLine();
1380
1381 wxASSERT_MSG( pLine, _T("last group must have !NULL associated line") );
1382
1383 return pLine;
1384 }
1385
1386 // no subgroups, so the last line is the line of thelast entry (if any)
1387 return GetLastEntryLine();
1388 }
1389
1390 // return the last line belonging to the entries of this group (after which
1391 // we can add a new entry), if we don't have any entries we will add the new
1392 // one immediately after the group line itself.
1393 wxFileConfigLineList *wxFileConfigGroup::GetLastEntryLine()
1394 {
1395 wxLogTrace( _T("wxFileConfig"),
1396 _T(" GetLastEntryLine() for Group '%s'"),
1397 Name().c_str() );
1398
1399 if ( m_pLastEntry )
1400 {
1401 wxFileConfigLineList *pLine = m_pLastEntry->GetLine();
1402
1403 wxASSERT_MSG( pLine, _T("last entry must have !NULL associated line") );
1404
1405 return pLine;
1406 }
1407
1408 // no entries: insert after the group header, if any
1409 return GetGroupLine();
1410 }
1411
1412 void wxFileConfigGroup::SetLastEntry(wxFileConfigEntry *pEntry)
1413 {
1414 m_pLastEntry = pEntry;
1415
1416 if ( !m_pLine )
1417 {
1418 // the only situation in which a group without its own line can have
1419 // an entry is when the first entry is added to the initially empty
1420 // root pseudo-group
1421 wxASSERT_MSG( !m_pParent, _T("unexpected for non root group") );
1422
1423 // let the group know that it does have a line in the file now
1424 m_pLine = pEntry->GetLine();
1425 }
1426 }
1427
1428 // ----------------------------------------------------------------------------
1429 // group name
1430 // ----------------------------------------------------------------------------
1431
1432 void wxFileConfigGroup::Rename(const wxString& newName)
1433 {
1434 wxCHECK_RET( m_pParent, _T("the root group can't be renamed") );
1435
1436 m_strName = newName;
1437
1438 // +1: no leading '/'
1439 wxString strFullName;
1440 strFullName << wxT("[") << (GetFullName().c_str() + 1) << wxT("]");
1441
1442 wxFileConfigLineList *line = GetGroupLine();
1443 wxCHECK_RET( line, _T("a non root group must have a corresponding line!") );
1444
1445 line->SetText(strFullName);
1446
1447 SetDirty();
1448 }
1449
1450 wxString wxFileConfigGroup::GetFullName() const
1451 {
1452 if ( Parent() )
1453 return Parent()->GetFullName() + wxCONFIG_PATH_SEPARATOR + Name();
1454 else
1455 return wxT("");
1456 }
1457
1458 // ----------------------------------------------------------------------------
1459 // find an item
1460 // ----------------------------------------------------------------------------
1461
1462 // use binary search because the array is sorted
1463 wxFileConfigEntry *
1464 wxFileConfigGroup::FindEntry(const wxChar *szName) const
1465 {
1466 size_t i,
1467 lo = 0,
1468 hi = m_aEntries.Count();
1469 int res;
1470 wxFileConfigEntry *pEntry;
1471
1472 while ( lo < hi ) {
1473 i = (lo + hi)/2;
1474 pEntry = m_aEntries[i];
1475
1476 #if wxCONFIG_CASE_SENSITIVE
1477 res = wxStrcmp(pEntry->Name(), szName);
1478 #else
1479 res = wxStricmp(pEntry->Name(), szName);
1480 #endif
1481
1482 if ( res > 0 )
1483 hi = i;
1484 else if ( res < 0 )
1485 lo = i + 1;
1486 else
1487 return pEntry;
1488 }
1489
1490 return NULL;
1491 }
1492
1493 wxFileConfigGroup *
1494 wxFileConfigGroup::FindSubgroup(const wxChar *szName) const
1495 {
1496 size_t i,
1497 lo = 0,
1498 hi = m_aSubgroups.Count();
1499 int res;
1500 wxFileConfigGroup *pGroup;
1501
1502 while ( lo < hi ) {
1503 i = (lo + hi)/2;
1504 pGroup = m_aSubgroups[i];
1505
1506 #if wxCONFIG_CASE_SENSITIVE
1507 res = wxStrcmp(pGroup->Name(), szName);
1508 #else
1509 res = wxStricmp(pGroup->Name(), szName);
1510 #endif
1511
1512 if ( res > 0 )
1513 hi = i;
1514 else if ( res < 0 )
1515 lo = i + 1;
1516 else
1517 return pGroup;
1518 }
1519
1520 return NULL;
1521 }
1522
1523 // ----------------------------------------------------------------------------
1524 // create a new item
1525 // ----------------------------------------------------------------------------
1526
1527 // create a new entry and add it to the current group
1528 wxFileConfigEntry *wxFileConfigGroup::AddEntry(const wxString& strName, int nLine)
1529 {
1530 wxASSERT( FindEntry(strName) == 0 );
1531
1532 wxFileConfigEntry *pEntry = new wxFileConfigEntry(this, strName, nLine);
1533
1534 m_aEntries.Add(pEntry);
1535 return pEntry;
1536 }
1537
1538 // create a new group and add it to the current group
1539 wxFileConfigGroup *wxFileConfigGroup::AddSubgroup(const wxString& strName)
1540 {
1541 wxASSERT( FindSubgroup(strName) == 0 );
1542
1543 wxFileConfigGroup *pGroup = new wxFileConfigGroup(this, strName, m_pConfig);
1544
1545 m_aSubgroups.Add(pGroup);
1546 return pGroup;
1547 }
1548
1549 // ----------------------------------------------------------------------------
1550 // delete an item
1551 // ----------------------------------------------------------------------------
1552
1553 /*
1554 The delete operations are _very_ slow if we delete the last item of this
1555 group (see comments before GetXXXLineXXX functions for more details),
1556 so it's much better to start with the first entry/group if we want to
1557 delete several of them.
1558 */
1559
1560 bool wxFileConfigGroup::DeleteSubgroupByName(const wxChar *szName)
1561 {
1562 wxFileConfigGroup * const pGroup = FindSubgroup(szName);
1563
1564 return pGroup ? DeleteSubgroup(pGroup) : FALSE;
1565 }
1566
1567 // Delete the subgroup and remove all references to it from
1568 // other data structures.
1569 bool wxFileConfigGroup::DeleteSubgroup(wxFileConfigGroup *pGroup)
1570 {
1571 wxCHECK_MSG( pGroup, FALSE, _T("deleting non existing group?") );
1572
1573 wxLogTrace( _T("wxFileConfig"),
1574 _T("Deleting group '%s' from '%s'"),
1575 pGroup->Name().c_str(),
1576 Name().c_str() );
1577
1578 wxLogTrace( _T("wxFileConfig"),
1579 _T(" (m_pLine) = prev: %p, this %p, next %p"),
1580 ((m_pLine) ? m_pLine->Prev() : 0),
1581 m_pLine,
1582 ((m_pLine) ? m_pLine->Next() : 0) );
1583 wxLogTrace( _T("wxFileConfig"),
1584 _T(" text: '%s'"),
1585 ((m_pLine) ? m_pLine->Text().c_str() : wxEmptyString) );
1586
1587 // delete all entries
1588 size_t nCount = pGroup->m_aEntries.Count();
1589
1590 wxLogTrace(_T("wxFileConfig"),
1591 _T("Removing %lu Entries"),
1592 (unsigned long)nCount );
1593
1594 for ( size_t nEntry = 0; nEntry < nCount; nEntry++ )
1595 {
1596 wxFileConfigLineList *pLine = pGroup->m_aEntries[nEntry]->GetLine();
1597
1598 if ( pLine != 0 )
1599 {
1600 wxLogTrace( _T("wxFileConfig"),
1601 _T(" '%s'"),
1602 pLine->Text().c_str() );
1603 m_pConfig->LineListRemove(pLine);
1604 }
1605 }
1606
1607 // and subgroups of this subgroup
1608
1609 nCount = pGroup->m_aSubgroups.Count();
1610
1611 wxLogTrace( _T("wxFileConfig"),
1612 _T("Removing %lu SubGroups"),
1613 (unsigned long)nCount );
1614
1615 for ( size_t nGroup = 0; nGroup < nCount; nGroup++ )
1616 {
1617 pGroup->DeleteSubgroup(pGroup->m_aSubgroups[0]);
1618 }
1619
1620 // finally the group itself
1621
1622 wxFileConfigLineList *pLine = pGroup->m_pLine;
1623
1624 if ( pLine != 0 )
1625 {
1626 wxLogTrace( _T("wxFileConfig"),
1627 _T(" Removing line entry for Group '%s' : '%s'"),
1628 pGroup->Name().c_str(),
1629 pLine->Text().c_str() );
1630 wxLogTrace( _T("wxFileConfig"),
1631 _T(" Removing from Group '%s' : '%s'"),
1632 Name().c_str(),
1633 ((m_pLine) ? m_pLine->Text().c_str() : wxEmptyString) );
1634
1635 // notice that we may do this test inside the previous "if"
1636 // because the last entry's line is surely !NULL
1637
1638 if ( pGroup == m_pLastGroup )
1639 {
1640 wxLogTrace( _T("wxFileConfig"),
1641 _T(" ------- Removing last group -------") );
1642
1643 // our last entry is being deleted, so find the last one which stays.
1644 // go back until we find a subgroup or reach the group's line, unless
1645 // we are the root group, which we'll notice shortly.
1646
1647 wxFileConfigGroup *pNewLast = 0;
1648 size_t nSubgroups = m_aSubgroups.Count();
1649 wxFileConfigLineList *pl;
1650
1651 for ( pl = pLine->Prev(); pl != m_pLine; pl = pl->Prev() )
1652 {
1653 // is it our subgroup?
1654
1655 for ( size_t n = 0; (pNewLast == 0) && (n < nSubgroups); n++ )
1656 {
1657 // do _not_ call GetGroupLine! we don't want to add it to the local
1658 // file if it's not already there
1659
1660 if ( m_aSubgroups[n]->m_pLine == m_pLine )
1661 pNewLast = m_aSubgroups[n];
1662 }
1663
1664 if ( pNewLast != 0 ) // found?
1665 break;
1666 }
1667
1668 if ( pl == m_pLine || m_pParent == 0 )
1669 {
1670 wxLogTrace( _T("wxFileConfig"),
1671 _T(" ------- No previous group found -------") );
1672
1673 wxASSERT_MSG( !pNewLast || m_pLine == 0,
1674 _T("how comes it has the same line as we?") );
1675
1676 // we've reached the group line without finding any subgroups,
1677 // or realised we removed the last group from the root.
1678
1679 m_pLastGroup = 0;
1680 }
1681 else
1682 {
1683 wxLogTrace( _T("wxFileConfig"),
1684 _T(" ------- Last Group set to '%s' -------"),
1685 pNewLast->Name().c_str() );
1686
1687 m_pLastGroup = pNewLast;
1688 }
1689 }
1690
1691 m_pConfig->LineListRemove(pLine);
1692 }
1693 else
1694 {
1695 wxLogTrace( _T("wxFileConfig"),
1696 _T(" No line entry for Group '%s'?"),
1697 pGroup->Name().c_str() );
1698 }
1699
1700 SetDirty();
1701
1702 m_aSubgroups.Remove(pGroup);
1703 delete pGroup;
1704
1705 return TRUE;
1706 }
1707
1708 bool wxFileConfigGroup::DeleteEntry(const wxChar *szName)
1709 {
1710 wxFileConfigEntry *pEntry = FindEntry(szName);
1711 wxCHECK( pEntry != NULL, FALSE ); // deleting non existing item?
1712
1713 wxFileConfigLineList *pLine = pEntry->GetLine();
1714 if ( pLine != NULL ) {
1715 // notice that we may do this test inside the previous "if" because the
1716 // last entry's line is surely !NULL
1717 if ( pEntry == m_pLastEntry ) {
1718 // our last entry is being deleted - find the last one which stays
1719 wxASSERT( m_pLine != NULL ); // if we have an entry with !NULL pLine...
1720
1721 // go back until we find another entry or reach the group's line
1722 wxFileConfigEntry *pNewLast = NULL;
1723 size_t n, nEntries = m_aEntries.Count();
1724 wxFileConfigLineList *pl;
1725 for ( pl = pLine->Prev(); pl != m_pLine; pl = pl->Prev() ) {
1726 // is it our subgroup?
1727 for ( n = 0; (pNewLast == NULL) && (n < nEntries); n++ ) {
1728 if ( m_aEntries[n]->GetLine() == m_pLine )
1729 pNewLast = m_aEntries[n];
1730 }
1731
1732 if ( pNewLast != NULL ) // found?
1733 break;
1734 }
1735
1736 if ( pl == m_pLine ) {
1737 wxASSERT( !pNewLast ); // how comes it has the same line as we?
1738
1739 // we've reached the group line without finding any subgroups
1740 m_pLastEntry = NULL;
1741 }
1742 else
1743 m_pLastEntry = pNewLast;
1744 }
1745
1746 m_pConfig->LineListRemove(pLine);
1747 }
1748
1749 // we must be written back for the changes to be saved
1750 SetDirty();
1751
1752 m_aEntries.Remove(pEntry);
1753 delete pEntry;
1754
1755 return TRUE;
1756 }
1757
1758 // ----------------------------------------------------------------------------
1759 //
1760 // ----------------------------------------------------------------------------
1761 void wxFileConfigGroup::SetDirty()
1762 {
1763 m_bDirty = TRUE;
1764 if ( Parent() != NULL ) // propagate upwards
1765 Parent()->SetDirty();
1766 }
1767
1768 // ============================================================================
1769 // wxFileConfig::wxFileConfigEntry
1770 // ============================================================================
1771
1772 // ----------------------------------------------------------------------------
1773 // ctor
1774 // ----------------------------------------------------------------------------
1775 wxFileConfigEntry::wxFileConfigEntry(wxFileConfigGroup *pParent,
1776 const wxString& strName,
1777 int nLine)
1778 : m_strName(strName)
1779 {
1780 wxASSERT( !strName.IsEmpty() );
1781
1782 m_pParent = pParent;
1783 m_nLine = nLine;
1784 m_pLine = NULL;
1785
1786 m_bDirty =
1787 m_bHasValue = FALSE;
1788
1789 m_bImmutable = strName[0] == wxCONFIG_IMMUTABLE_PREFIX;
1790 if ( m_bImmutable )
1791 m_strName.erase(0, 1); // remove first character
1792 }
1793
1794 // ----------------------------------------------------------------------------
1795 // set value
1796 // ----------------------------------------------------------------------------
1797
1798 void wxFileConfigEntry::SetLine(wxFileConfigLineList *pLine)
1799 {
1800 if ( m_pLine != NULL ) {
1801 wxLogWarning(_("entry '%s' appears more than once in group '%s'"),
1802 Name().c_str(), m_pParent->GetFullName().c_str());
1803 }
1804
1805 m_pLine = pLine;
1806 Group()->SetLastEntry(this);
1807 }
1808
1809 // second parameter is FALSE if we read the value from file and prevents the
1810 // entry from being marked as 'dirty'
1811 void wxFileConfigEntry::SetValue(const wxString& strValue, bool bUser)
1812 {
1813 if ( bUser && IsImmutable() )
1814 {
1815 wxLogWarning( _("attempt to change immutable key '%s' ignored."),
1816 Name().c_str());
1817 return;
1818 }
1819
1820 // do nothing if it's the same value: but don't test for it
1821 // if m_bHasValue hadn't been set yet or we'd never write
1822 // empty values to the file
1823
1824 if ( m_bHasValue && strValue == m_strValue )
1825 return;
1826
1827 m_bHasValue = TRUE;
1828 m_strValue = strValue;
1829
1830 if ( bUser )
1831 {
1832 wxString strValFiltered;
1833
1834 if ( Group()->Config()->GetStyle() & wxCONFIG_USE_NO_ESCAPE_CHARACTERS )
1835 {
1836 strValFiltered = strValue;
1837 }
1838 else {
1839 strValFiltered = FilterOutValue(strValue);
1840 }
1841
1842 wxString strLine;
1843 strLine << FilterOutEntryName(m_strName) << wxT('=') << strValFiltered;
1844
1845 if ( m_pLine )
1846 {
1847 // entry was read from the local config file, just modify the line
1848 m_pLine->SetText(strLine);
1849 }
1850 else // this entry didn't exist in the local file
1851 {
1852 // add a new line to the file
1853 wxFileConfigLineList *line = Group()->GetLastEntryLine();
1854 m_pLine = Group()->Config()->LineListInsert(strLine, line);
1855
1856 Group()->SetLastEntry(this);
1857 }
1858
1859 SetDirty();
1860 }
1861 }
1862
1863 void wxFileConfigEntry::SetDirty()
1864 {
1865 m_bDirty = TRUE;
1866 Group()->SetDirty();
1867 }
1868
1869 // ============================================================================
1870 // global functions
1871 // ============================================================================
1872
1873 // ----------------------------------------------------------------------------
1874 // compare functions for array sorting
1875 // ----------------------------------------------------------------------------
1876
1877 int CompareEntries(wxFileConfigEntry *p1, wxFileConfigEntry *p2)
1878 {
1879 #if wxCONFIG_CASE_SENSITIVE
1880 return wxStrcmp(p1->Name(), p2->Name());
1881 #else
1882 return wxStricmp(p1->Name(), p2->Name());
1883 #endif
1884 }
1885
1886 int CompareGroups(wxFileConfigGroup *p1, wxFileConfigGroup *p2)
1887 {
1888 #if wxCONFIG_CASE_SENSITIVE
1889 return wxStrcmp(p1->Name(), p2->Name());
1890 #else
1891 return wxStricmp(p1->Name(), p2->Name());
1892 #endif
1893 }
1894
1895 // ----------------------------------------------------------------------------
1896 // filter functions
1897 // ----------------------------------------------------------------------------
1898
1899 // undo FilterOutValue
1900 static wxString FilterInValue(const wxString& str)
1901 {
1902 wxString strResult;
1903 strResult.Alloc(str.Len());
1904
1905 bool bQuoted = !str.IsEmpty() && str[0] == '"';
1906
1907 for ( size_t n = bQuoted ? 1 : 0; n < str.Len(); n++ ) {
1908 if ( str[n] == wxT('\\') ) {
1909 switch ( str[++n] ) {
1910 case wxT('n'):
1911 strResult += wxT('\n');
1912 break;
1913
1914 case wxT('r'):
1915 strResult += wxT('\r');
1916 break;
1917
1918 case wxT('t'):
1919 strResult += wxT('\t');
1920 break;
1921
1922 case wxT('\\'):
1923 strResult += wxT('\\');
1924 break;
1925
1926 case wxT('"'):
1927 strResult += wxT('"');
1928 break;
1929 }
1930 }
1931 else {
1932 if ( str[n] != wxT('"') || !bQuoted )
1933 strResult += str[n];
1934 else if ( n != str.Len() - 1 ) {
1935 wxLogWarning(_("unexpected \" at position %d in '%s'."),
1936 n, str.c_str());
1937 }
1938 //else: it's the last quote of a quoted string, ok
1939 }
1940 }
1941
1942 return strResult;
1943 }
1944
1945 // quote the string before writing it to file
1946 static wxString FilterOutValue(const wxString& str)
1947 {
1948 if ( !str )
1949 return str;
1950
1951 wxString strResult;
1952 strResult.Alloc(str.Len());
1953
1954 // quoting is necessary to preserve spaces in the beginning of the string
1955 bool bQuote = wxIsspace(str[0]) || str[0] == wxT('"');
1956
1957 if ( bQuote )
1958 strResult += wxT('"');
1959
1960 wxChar c;
1961 for ( size_t n = 0; n < str.Len(); n++ ) {
1962 switch ( str[n] ) {
1963 case wxT('\n'):
1964 c = wxT('n');
1965 break;
1966
1967 case wxT('\r'):
1968 c = wxT('r');
1969 break;
1970
1971 case wxT('\t'):
1972 c = wxT('t');
1973 break;
1974
1975 case wxT('\\'):
1976 c = wxT('\\');
1977 break;
1978
1979 case wxT('"'):
1980 if ( bQuote ) {
1981 c = wxT('"');
1982 break;
1983 }
1984 //else: fall through
1985
1986 default:
1987 strResult += str[n];
1988 continue; // nothing special to do
1989 }
1990
1991 // we get here only for special characters
1992 strResult << wxT('\\') << c;
1993 }
1994
1995 if ( bQuote )
1996 strResult += wxT('"');
1997
1998 return strResult;
1999 }
2000
2001 // undo FilterOutEntryName
2002 static wxString FilterInEntryName(const wxString& str)
2003 {
2004 wxString strResult;
2005 strResult.Alloc(str.Len());
2006
2007 for ( const wxChar *pc = str.c_str(); *pc != '\0'; pc++ ) {
2008 if ( *pc == wxT('\\') )
2009 pc++;
2010
2011 strResult += *pc;
2012 }
2013
2014 return strResult;
2015 }
2016
2017 // sanitize entry or group name: insert '\\' before any special characters
2018 static wxString FilterOutEntryName(const wxString& str)
2019 {
2020 wxString strResult;
2021 strResult.Alloc(str.Len());
2022
2023 for ( const wxChar *pc = str.c_str(); *pc != wxT('\0'); pc++ ) {
2024 const wxChar c = *pc;
2025
2026 // we explicitly allow some of "safe" chars and 8bit ASCII characters
2027 // which will probably never have special meaning and with which we can't
2028 // use isalnum() anyhow (in ASCII built, in Unicode it's just fine)
2029 //
2030 // NB: note that wxCONFIG_IMMUTABLE_PREFIX and wxCONFIG_PATH_SEPARATOR
2031 // should *not* be quoted
2032 if (
2033 #if !wxUSE_UNICODE
2034 ((unsigned char)c < 127) &&
2035 #endif // ANSI
2036 !wxIsalnum(c) && !wxStrchr(wxT("@_/-!.*%"), c) )
2037 {
2038 strResult += wxT('\\');
2039 }
2040
2041 strResult += c;
2042 }
2043
2044 return strResult;
2045 }
2046
2047 // we can't put ?: in the ctor initializer list because it confuses some
2048 // broken compilers (Borland C++)
2049 static wxString GetAppName(const wxString& appName)
2050 {
2051 if ( !appName && wxTheApp )
2052 return wxTheApp->GetAppName();
2053 else
2054 return appName;
2055 }
2056
2057 #endif // wxUSE_CONFIG
2058
2059
2060 // vi:sts=4:sw=4:et
wxWidgets (Impactor)