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[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 while ( !inStream.Read(buf, WXSIZEOF(buf)).Eof() )
498 strTmp.append(wxConvertMB2WX(buf), inStream.LastRead());
499
500 strTmp.append(wxConvertMB2WX(buf), inStream.LastRead());
501
502 strTrans = wxTextBuffer::Translate(strTmp);
503 }
504
505 wxMemoryText memText;
506
507 // Now we can add the text to the memory text. To do this we extract line
508 // by line from the translated string, until we've reached the end.
509 //
510 // VZ: all this is horribly inefficient, we should do the translation on
511 // the fly in one pass saving both memory and time (TODO)
512
513 const wxChar *pEOL = wxTextBuffer::GetEOL(wxTextBuffer::typeDefault);
514 const size_t EOLLen = wxStrlen(pEOL);
515
516 int posLineStart = strTrans.Find(pEOL);
517 while ( posLineStart != -1 )
518 {
519 wxString line(strTrans.Left(posLineStart));
520
521 memText.AddLine(line);
522
523 strTrans = strTrans.Mid(posLineStart + EOLLen);
524
525 posLineStart = strTrans.Find(pEOL);
526 }
527
528 // also add whatever we have left in the translated string.
529 memText.AddLine(strTrans);
530
531 // Finally we can parse it all.
532 Parse(memText, TRUE /* local */);
533
534 SetRootPath();
535 }
536
537 #endif // wxUSE_STREAMS
538
539 void wxFileConfig::CleanUp()
540 {
541 delete m_pRootGroup;
542
543 wxFileConfigLineList *pCur = m_linesHead;
544 while ( pCur != NULL ) {
545 wxFileConfigLineList *pNext = pCur->Next();
546 delete pCur;
547 pCur = pNext;
548 }
549 }
550
551 wxFileConfig::~wxFileConfig()
552 {
553 Flush();
554
555 CleanUp();
556 }
557
558 // ----------------------------------------------------------------------------
559 // parse a config file
560 // ----------------------------------------------------------------------------
561
562 void wxFileConfig::Parse(wxTextBuffer& buffer, bool bLocal)
563 {
564 const wxChar *pStart;
565 const wxChar *pEnd;
566 wxString strLine;
567
568 size_t nLineCount = buffer.GetLineCount();
569
570 for ( size_t n = 0; n < nLineCount; n++ )
571 {
572 strLine = buffer[n];
573
574 // add the line to linked list
575 if ( bLocal )
576 {
577 LineListAppend(strLine);
578
579 // let the root group have it start line as well
580 if ( !n )
581 {
582 m_pCurrentGroup->SetLine(m_linesTail);
583 }
584 }
585
586
587 // skip leading spaces
588 for ( pStart = strLine; wxIsspace(*pStart); pStart++ )
589 ;
590
591 // skip blank/comment lines
592 if ( *pStart == wxT('\0')|| *pStart == wxT(';') || *pStart == wxT('#') )
593 continue;
594
595 if ( *pStart == wxT('[') ) { // a new group
596 pEnd = pStart;
597
598 while ( *++pEnd != wxT(']') ) {
599 if ( *pEnd == wxT('\\') ) {
600 // the next char is escaped, so skip it even if it is ']'
601 pEnd++;
602 }
603
604 if ( *pEnd == wxT('\n') || *pEnd == wxT('\0') ) {
605 // we reached the end of line, break out of the loop
606 break;
607 }
608 }
609
610 if ( *pEnd != wxT(']') ) {
611 wxLogError(_("file '%s': unexpected character %c at line %d."),
612 buffer.GetName(), *pEnd, n + 1);
613 continue; // skip this line
614 }
615
616 // group name here is always considered as abs path
617 wxString strGroup;
618 pStart++;
619 strGroup << wxCONFIG_PATH_SEPARATOR
620 << FilterInEntryName(wxString(pStart, pEnd - pStart));
621
622 // will create it if doesn't yet exist
623 SetPath(strGroup);
624
625 if ( bLocal )
626 {
627 if ( m_pCurrentGroup->Parent() )
628 m_pCurrentGroup->Parent()->SetLastGroup(m_pCurrentGroup);
629 m_pCurrentGroup->SetLine(m_linesTail);
630 }
631
632 // check that there is nothing except comments left on this line
633 bool bCont = TRUE;
634 while ( *++pEnd != wxT('\0') && bCont ) {
635 switch ( *pEnd ) {
636 case wxT('#'):
637 case wxT(';'):
638 bCont = FALSE;
639 break;
640
641 case wxT(' '):
642 case wxT('\t'):
643 // ignore whitespace ('\n' impossible here)
644 break;
645
646 default:
647 wxLogWarning(_("file '%s', line %d: '%s' ignored after group header."),
648 buffer.GetName(), n + 1, pEnd);
649 bCont = FALSE;
650 }
651 }
652 }
653 else { // a key
654 const wxChar *pEnd = pStart;
655 while ( *pEnd && *pEnd != wxT('=') && !wxIsspace(*pEnd) ) {
656 if ( *pEnd == wxT('\\') ) {
657 // next character may be space or not - still take it because it's
658 // quoted (unless there is nothing)
659 pEnd++;
660 if ( !*pEnd ) {
661 // the error message will be given below anyhow
662 break;
663 }
664 }
665
666 pEnd++;
667 }
668
669 wxString strKey(FilterInEntryName(wxString(pStart, pEnd)));
670
671 // skip whitespace
672 while ( wxIsspace(*pEnd) )
673 pEnd++;
674
675 if ( *pEnd++ != wxT('=') ) {
676 wxLogError(_("file '%s', line %d: '=' expected."),
677 buffer.GetName(), n + 1);
678 }
679 else {
680 wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(strKey);
681
682 if ( pEntry == NULL ) {
683 // new entry
684 pEntry = m_pCurrentGroup->AddEntry(strKey, n);
685 }
686 else {
687 if ( bLocal && pEntry->IsImmutable() ) {
688 // immutable keys can't be changed by user
689 wxLogWarning(_("file '%s', line %d: value for immutable key '%s' ignored."),
690 buffer.GetName(), n + 1, strKey.c_str());
691 continue;
692 }
693 // the condition below catches the cases (a) and (b) but not (c):
694 // (a) global key found second time in global file
695 // (b) key found second (or more) time in local file
696 // (c) key from global file now found in local one
697 // which is exactly what we want.
698 else if ( !bLocal || pEntry->IsLocal() ) {
699 wxLogWarning(_("file '%s', line %d: key '%s' was first found at line %d."),
700 buffer.GetName(), n + 1, strKey.c_str(), pEntry->Line());
701
702 }
703 }
704
705 if ( bLocal )
706 pEntry->SetLine(m_linesTail);
707
708 // skip whitespace
709 while ( wxIsspace(*pEnd) )
710 pEnd++;
711
712 wxString value = pEnd;
713 if ( !(GetStyle() & wxCONFIG_USE_NO_ESCAPE_CHARACTERS) )
714 value = FilterInValue(value);
715
716 pEntry->SetValue(value, FALSE);
717 }
718 }
719 }
720 }
721
722 // ----------------------------------------------------------------------------
723 // set/retrieve path
724 // ----------------------------------------------------------------------------
725
726 void wxFileConfig::SetRootPath()
727 {
728 m_strPath.Empty();
729 m_pCurrentGroup = m_pRootGroup;
730 }
731
732 void wxFileConfig::SetPath(const wxString& strPath)
733 {
734 wxArrayString aParts;
735
736 if ( strPath.IsEmpty() ) {
737 SetRootPath();
738 return;
739 }
740
741 if ( strPath[0] == wxCONFIG_PATH_SEPARATOR ) {
742 // absolute path
743 wxSplitPath(aParts, strPath);
744 }
745 else {
746 // relative path, combine with current one
747 wxString strFullPath = m_strPath;
748 strFullPath << wxCONFIG_PATH_SEPARATOR << strPath;
749 wxSplitPath(aParts, strFullPath);
750 }
751
752 // change current group
753 size_t n;
754 m_pCurrentGroup = m_pRootGroup;
755 for ( n = 0; n < aParts.Count(); n++ ) {
756 wxFileConfigGroup *pNextGroup = m_pCurrentGroup->FindSubgroup(aParts[n]);
757 if ( pNextGroup == NULL )
758 pNextGroup = m_pCurrentGroup->AddSubgroup(aParts[n]);
759 m_pCurrentGroup = pNextGroup;
760 }
761
762 // recombine path parts in one variable
763 m_strPath.Empty();
764 for ( n = 0; n < aParts.Count(); n++ ) {
765 m_strPath << wxCONFIG_PATH_SEPARATOR << aParts[n];
766 }
767 }
768
769 // ----------------------------------------------------------------------------
770 // enumeration
771 // ----------------------------------------------------------------------------
772
773 bool wxFileConfig::GetFirstGroup(wxString& str, long& lIndex) const
774 {
775 lIndex = 0;
776 return GetNextGroup(str, lIndex);
777 }
778
779 bool wxFileConfig::GetNextGroup (wxString& str, long& lIndex) const
780 {
781 if ( size_t(lIndex) < m_pCurrentGroup->Groups().Count() ) {
782 str = m_pCurrentGroup->Groups()[(size_t)lIndex++]->Name();
783 return TRUE;
784 }
785 else
786 return FALSE;
787 }
788
789 bool wxFileConfig::GetFirstEntry(wxString& str, long& lIndex) const
790 {
791 lIndex = 0;
792 return GetNextEntry(str, lIndex);
793 }
794
795 bool wxFileConfig::GetNextEntry (wxString& str, long& lIndex) const
796 {
797 if ( size_t(lIndex) < m_pCurrentGroup->Entries().Count() ) {
798 str = m_pCurrentGroup->Entries()[(size_t)lIndex++]->Name();
799 return TRUE;
800 }
801 else
802 return FALSE;
803 }
804
805 size_t wxFileConfig::GetNumberOfEntries(bool bRecursive) const
806 {
807 size_t n = m_pCurrentGroup->Entries().Count();
808 if ( bRecursive ) {
809 wxFileConfigGroup *pOldCurrentGroup = m_pCurrentGroup;
810 size_t nSubgroups = m_pCurrentGroup->Groups().Count();
811 for ( size_t nGroup = 0; nGroup < nSubgroups; nGroup++ ) {
812 CONST_CAST m_pCurrentGroup = m_pCurrentGroup->Groups()[nGroup];
813 n += GetNumberOfEntries(TRUE);
814 CONST_CAST m_pCurrentGroup = pOldCurrentGroup;
815 }
816 }
817
818 return n;
819 }
820
821 size_t wxFileConfig::GetNumberOfGroups(bool bRecursive) const
822 {
823 size_t n = m_pCurrentGroup->Groups().Count();
824 if ( bRecursive ) {
825 wxFileConfigGroup *pOldCurrentGroup = m_pCurrentGroup;
826 size_t nSubgroups = m_pCurrentGroup->Groups().Count();
827 for ( size_t nGroup = 0; nGroup < nSubgroups; nGroup++ ) {
828 CONST_CAST m_pCurrentGroup = m_pCurrentGroup->Groups()[nGroup];
829 n += GetNumberOfGroups(TRUE);
830 CONST_CAST m_pCurrentGroup = pOldCurrentGroup;
831 }
832 }
833
834 return n;
835 }
836
837 // ----------------------------------------------------------------------------
838 // tests for existence
839 // ----------------------------------------------------------------------------
840
841 bool wxFileConfig::HasGroup(const wxString& strName) const
842 {
843 wxConfigPathChanger path(this, strName);
844
845 wxFileConfigGroup *pGroup = m_pCurrentGroup->FindSubgroup(path.Name());
846 return pGroup != NULL;
847 }
848
849 bool wxFileConfig::HasEntry(const wxString& strName) const
850 {
851 wxConfigPathChanger path(this, strName);
852
853 wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name());
854 return pEntry != NULL;
855 }
856
857 // ----------------------------------------------------------------------------
858 // read/write values
859 // ----------------------------------------------------------------------------
860
861 bool wxFileConfig::DoReadString(const wxString& key, wxString* pStr) const
862 {
863 wxConfigPathChanger path(this, key);
864
865 wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name());
866 if (pEntry == NULL) {
867 return FALSE;
868 }
869
870 *pStr = pEntry->Value();
871
872 return TRUE;
873 }
874
875 bool wxFileConfig::DoReadLong(const wxString& key, long *pl) const
876 {
877 wxString str;
878 if ( !Read(key, &str) )
879 return FALSE;
880
881 // extra spaces shouldn't prevent us from reading numeric values
882 str.Trim();
883
884 return str.ToLong(pl);
885 }
886
887 bool wxFileConfig::DoWriteString(const wxString& key, const wxString& szValue)
888 {
889 wxConfigPathChanger path(this, key);
890 wxString strName = path.Name();
891
892 wxLogTrace( _T("wxFileConfig"),
893 _T(" Writing String '%s' = '%s' to Group '%s'"),
894 strName.c_str(),
895 szValue.c_str(),
896 GetPath().c_str() );
897
898 if ( strName.IsEmpty() )
899 {
900 // setting the value of a group is an error
901
902 wxASSERT_MSG( wxIsEmpty(szValue), wxT("can't set value of a group!") );
903
904 // ... except if it's empty in which case it's a way to force it's creation
905
906 wxLogTrace( _T("wxFileConfig"),
907 _T(" Creating group %s"),
908 m_pCurrentGroup->Name().c_str() );
909
910 m_pCurrentGroup->SetDirty();
911
912 // this will add a line for this group if it didn't have it before
913
914 (void)m_pCurrentGroup->GetGroupLine();
915 }
916 else
917 {
918 // writing an entry
919 // check that the name is reasonable
920
921 if ( strName[0u] == wxCONFIG_IMMUTABLE_PREFIX )
922 {
923 wxLogError( _("Config entry name cannot start with '%c'."),
924 wxCONFIG_IMMUTABLE_PREFIX);
925 return FALSE;
926 }
927
928 wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(strName);
929
930 if ( pEntry == 0 )
931 {
932 wxLogTrace( _T("wxFileConfig"),
933 _T(" Adding Entry %s"),
934 strName.c_str() );
935 pEntry = m_pCurrentGroup->AddEntry(strName);
936 }
937
938 wxLogTrace( _T("wxFileConfig"),
939 _T(" Setting value %s"),
940 szValue.c_str() );
941 pEntry->SetValue(szValue);
942 }
943
944 return TRUE;
945 }
946
947 bool wxFileConfig::DoWriteLong(const wxString& key, long lValue)
948 {
949 return Write(key, wxString::Format(_T("%ld"), lValue));
950 }
951
952 bool wxFileConfig::Flush(bool /* bCurrentOnly */)
953 {
954 if ( LineListIsEmpty() || !m_pRootGroup->IsDirty() || !m_strLocalFile )
955 return TRUE;
956
957 #ifdef __UNIX__
958 // set the umask if needed
959 mode_t umaskOld = 0;
960 if ( m_umask != -1 )
961 {
962 umaskOld = umask((mode_t)m_umask);
963 }
964 #endif // __UNIX__
965
966 wxTempFile file(m_strLocalFile);
967
968 if ( !file.IsOpened() )
969 {
970 wxLogError(_("can't open user configuration file."));
971 return FALSE;
972 }
973
974 // write all strings to file
975 for ( wxFileConfigLineList *p = m_linesHead; p != NULL; p = p->Next() )
976 {
977 wxString line = p->Text();
978 line += wxTextFile::GetEOL();
979 if ( !file.Write(line, m_conv) )
980 {
981 wxLogError(_("can't write user configuration file."));
982 return FALSE;
983 }
984 }
985
986 bool ret = file.Commit();
987
988 #if defined(__WXMAC__)
989 if ( ret )
990 {
991 FSSpec spec ;
992
993 wxMacFilename2FSSpec( m_strLocalFile , &spec ) ;
994 FInfo finfo ;
995 if ( FSpGetFInfo( &spec , &finfo ) == noErr )
996 {
997 finfo.fdType = 'TEXT' ;
998 finfo.fdCreator = 'ttxt' ;
999 FSpSetFInfo( &spec , &finfo ) ;
1000 }
1001 }
1002 #endif // __WXMAC__
1003
1004 #ifdef __UNIX__
1005 // restore the old umask if we changed it
1006 if ( m_umask != -1 )
1007 {
1008 (void)umask(umaskOld);
1009 }
1010 #endif // __UNIX__
1011
1012 return ret;
1013 }
1014
1015 // ----------------------------------------------------------------------------
1016 // renaming groups/entries
1017 // ----------------------------------------------------------------------------
1018
1019 bool wxFileConfig::RenameEntry(const wxString& oldName,
1020 const wxString& newName)
1021 {
1022 // check that the entry exists
1023 wxFileConfigEntry *oldEntry = m_pCurrentGroup->FindEntry(oldName);
1024 if ( !oldEntry )
1025 return FALSE;
1026
1027 // check that the new entry doesn't already exist
1028 if ( m_pCurrentGroup->FindEntry(newName) )
1029 return FALSE;
1030
1031 // delete the old entry, create the new one
1032 wxString value = oldEntry->Value();
1033 if ( !m_pCurrentGroup->DeleteEntry(oldName) )
1034 return FALSE;
1035
1036 wxFileConfigEntry *newEntry = m_pCurrentGroup->AddEntry(newName);
1037 newEntry->SetValue(value);
1038
1039 return TRUE;
1040 }
1041
1042 bool wxFileConfig::RenameGroup(const wxString& oldName,
1043 const wxString& newName)
1044 {
1045 // check that the group exists
1046 wxFileConfigGroup *group = m_pCurrentGroup->FindSubgroup(oldName);
1047 if ( !group )
1048 return FALSE;
1049
1050 // check that the new group doesn't already exist
1051 if ( m_pCurrentGroup->FindSubgroup(newName) )
1052 return FALSE;
1053
1054 group->Rename(newName);
1055
1056 return TRUE;
1057 }
1058
1059 // ----------------------------------------------------------------------------
1060 // delete groups/entries
1061 // ----------------------------------------------------------------------------
1062
1063 bool wxFileConfig::DeleteEntry(const wxString& key, bool bGroupIfEmptyAlso)
1064 {
1065 wxConfigPathChanger path(this, key);
1066
1067 if ( !m_pCurrentGroup->DeleteEntry(path.Name()) )
1068 return FALSE;
1069
1070 if ( bGroupIfEmptyAlso && m_pCurrentGroup->IsEmpty() ) {
1071 if ( m_pCurrentGroup != m_pRootGroup ) {
1072 wxFileConfigGroup *pGroup = m_pCurrentGroup;
1073 SetPath(wxT("..")); // changes m_pCurrentGroup!
1074 m_pCurrentGroup->DeleteSubgroupByName(pGroup->Name());
1075 }
1076 //else: never delete the root group
1077 }
1078
1079 return TRUE;
1080 }
1081
1082 bool wxFileConfig::DeleteGroup(const wxString& key)
1083 {
1084 wxConfigPathChanger path(this, key);
1085
1086 return m_pCurrentGroup->DeleteSubgroupByName(path.Name());
1087 }
1088
1089 bool wxFileConfig::DeleteAll()
1090 {
1091 CleanUp();
1092
1093 if ( wxRemove(m_strLocalFile) == -1 )
1094 wxLogSysError(_("can't delete user configuration file '%s'"), m_strLocalFile.c_str());
1095
1096 m_strLocalFile = m_strGlobalFile = wxT("");
1097 Init();
1098
1099 return TRUE;
1100 }
1101
1102 // ----------------------------------------------------------------------------
1103 // linked list functions
1104 // ----------------------------------------------------------------------------
1105
1106 // append a new line to the end of the list
1107
1108 wxFileConfigLineList *wxFileConfig::LineListAppend(const wxString& str)
1109 {
1110 wxLogTrace( _T("wxFileConfig"),
1111 _T(" ** Adding Line '%s'"),
1112 str.c_str() );
1113 wxLogTrace( _T("wxFileConfig"),
1114 _T(" head: %s"),
1115 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1116 wxLogTrace( _T("wxFileConfig"),
1117 _T(" tail: %s"),
1118 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1119
1120 wxFileConfigLineList *pLine = new wxFileConfigLineList(str);
1121
1122 if ( m_linesTail == NULL )
1123 {
1124 // list is empty
1125 m_linesHead = pLine;
1126 }
1127 else
1128 {
1129 // adjust pointers
1130 m_linesTail->SetNext(pLine);
1131 pLine->SetPrev(m_linesTail);
1132 }
1133
1134 m_linesTail = pLine;
1135
1136 wxLogTrace( _T("wxFileConfig"),
1137 _T(" head: %s"),
1138 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1139 wxLogTrace( _T("wxFileConfig"),
1140 _T(" tail: %s"),
1141 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1142
1143 return m_linesTail;
1144 }
1145
1146 // insert a new line after the given one or in the very beginning if !pLine
1147 wxFileConfigLineList *wxFileConfig::LineListInsert(const wxString& str,
1148 wxFileConfigLineList *pLine)
1149 {
1150 wxLogTrace( _T("wxFileConfig"),
1151 _T(" ** Inserting Line '%s' after '%s'"),
1152 str.c_str(),
1153 ((pLine) ? pLine->Text().c_str() : wxEmptyString) );
1154 wxLogTrace( _T("wxFileConfig"),
1155 _T(" head: %s"),
1156 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1157 wxLogTrace( _T("wxFileConfig"),
1158 _T(" tail: %s"),
1159 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1160
1161 if ( pLine == m_linesTail )
1162 return LineListAppend(str);
1163
1164 wxFileConfigLineList *pNewLine = new wxFileConfigLineList(str);
1165 if ( pLine == NULL )
1166 {
1167 // prepend to the list
1168 pNewLine->SetNext(m_linesHead);
1169 m_linesHead->SetPrev(pNewLine);
1170 m_linesHead = pNewLine;
1171 }
1172 else
1173 {
1174 // insert before pLine
1175 wxFileConfigLineList *pNext = pLine->Next();
1176 pNewLine->SetNext(pNext);
1177 pNewLine->SetPrev(pLine);
1178 pNext->SetPrev(pNewLine);
1179 pLine->SetNext(pNewLine);
1180 }
1181
1182 wxLogTrace( _T("wxFileConfig"),
1183 _T(" head: %s"),
1184 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1185 wxLogTrace( _T("wxFileConfig"),
1186 _T(" tail: %s"),
1187 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1188
1189 return pNewLine;
1190 }
1191
1192 void wxFileConfig::LineListRemove(wxFileConfigLineList *pLine)
1193 {
1194 wxLogTrace( _T("wxFileConfig"),
1195 _T(" ** Removing Line '%s'"),
1196 pLine->Text().c_str() );
1197 wxLogTrace( _T("wxFileConfig"),
1198 _T(" head: %s"),
1199 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1200 wxLogTrace( _T("wxFileConfig"),
1201 _T(" tail: %s"),
1202 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1203
1204 wxFileConfigLineList *pPrev = pLine->Prev(),
1205 *pNext = pLine->Next();
1206
1207 // first entry?
1208
1209 if ( pPrev == NULL )
1210 m_linesHead = pNext;
1211 else
1212 pPrev->SetNext(pNext);
1213
1214 // last entry?
1215
1216 if ( pNext == NULL )
1217 m_linesTail = pPrev;
1218 else
1219 pNext->SetPrev(pPrev);
1220
1221 wxLogTrace( _T("wxFileConfig"),
1222 _T(" head: %s"),
1223 ((m_linesHead) ? m_linesHead->Text().c_str() : wxEmptyString) );
1224 wxLogTrace( _T("wxFileConfig"),
1225 _T(" tail: %s"),
1226 ((m_linesTail) ? m_linesTail->Text().c_str() : wxEmptyString) );
1227
1228 delete pLine;
1229 }
1230
1231 bool wxFileConfig::LineListIsEmpty()
1232 {
1233 return m_linesHead == NULL;
1234 }
1235
1236 // ============================================================================
1237 // wxFileConfig::wxFileConfigGroup
1238 // ============================================================================
1239
1240 // ----------------------------------------------------------------------------
1241 // ctor/dtor
1242 // ----------------------------------------------------------------------------
1243
1244 // ctor
1245 wxFileConfigGroup::wxFileConfigGroup(wxFileConfigGroup *pParent,
1246 const wxString& strName,
1247 wxFileConfig *pConfig)
1248 : m_aEntries(CompareEntries),
1249 m_aSubgroups(CompareGroups),
1250 m_strName(strName)
1251 {
1252 m_pConfig = pConfig;
1253 m_pParent = pParent;
1254 m_bDirty = FALSE;
1255 m_pLine = NULL;
1256
1257 m_pLastEntry = NULL;
1258 m_pLastGroup = NULL;
1259 }
1260
1261 // dtor deletes all children
1262 wxFileConfigGroup::~wxFileConfigGroup()
1263 {
1264 // entries
1265 size_t n, nCount = m_aEntries.Count();
1266 for ( n = 0; n < nCount; n++ )
1267 delete m_aEntries[n];
1268
1269 // subgroups
1270 nCount = m_aSubgroups.Count();
1271 for ( n = 0; n < nCount; n++ )
1272 delete m_aSubgroups[n];
1273 }
1274
1275 // ----------------------------------------------------------------------------
1276 // line
1277 // ----------------------------------------------------------------------------
1278
1279 void wxFileConfigGroup::SetLine(wxFileConfigLineList *pLine)
1280 {
1281 wxASSERT( m_pLine == 0 ); // shouldn't be called twice
1282 m_pLine = pLine;
1283 }
1284
1285 /*
1286 This is a bit complicated, so let me explain it in details. All lines that
1287 were read from the local file (the only one we will ever modify) are stored
1288 in a (doubly) linked list. Our problem is to know at which position in this
1289 list should we insert the new entries/subgroups. To solve it we keep three
1290 variables for each group: m_pLine, m_pLastEntry and m_pLastGroup.
1291
1292 m_pLine points to the line containing "[group_name]"
1293 m_pLastEntry points to the last entry of this group in the local file.
1294 m_pLastGroup subgroup
1295
1296 Initially, they're NULL all three. When the group (an entry/subgroup) is read
1297 from the local file, the corresponding variable is set. However, if the group
1298 was read from the global file and then modified or created by the application
1299 these variables are still NULL and we need to create the corresponding lines.
1300 See the following functions (and comments preceding them) for the details of
1301 how we do it.
1302
1303 Also, when our last entry/group are deleted we need to find the new last
1304 element - the code in DeleteEntry/Subgroup does this by backtracking the list
1305 of lines until it either founds an entry/subgroup (and this is the new last
1306 element) or the m_pLine of the group, in which case there are no more entries
1307 (or subgroups) left and m_pLast<element> becomes NULL.
1308
1309 NB: This last problem could be avoided for entries if we added new entries
1310 immediately after m_pLine, but in this case the entries would appear
1311 backwards in the config file (OTOH, it's not that important) and as we
1312 would still need to do it for the subgroups the code wouldn't have been
1313 significantly less complicated.
1314 */
1315
1316 // Return the line which contains "[our name]". If we're still not in the list,
1317 // add our line to it immediately after the last line of our parent group if we
1318 // have it or in the very beginning if we're the root group.
1319 wxFileConfigLineList *wxFileConfigGroup::GetGroupLine()
1320 {
1321 wxLogTrace( _T("wxFileConfig"),
1322 _T(" GetGroupLine() for Group '%s'"),
1323 Name().c_str() );
1324
1325 if ( !m_pLine )
1326 {
1327 wxLogTrace( _T("wxFileConfig"),
1328 _T(" Getting Line item pointer") );
1329
1330 wxFileConfigGroup *pParent = Parent();
1331
1332 // this group wasn't present in local config file, add it now
1333 if ( pParent )
1334 {
1335 wxLogTrace( _T("wxFileConfig"),
1336 _T(" checking parent '%s'"),
1337 pParent->Name().c_str() );
1338
1339 wxString strFullName;
1340
1341 // add 1 to the name because we don't want to start with '/'
1342 strFullName << wxT("[")
1343 << FilterOutEntryName(GetFullName().c_str() + 1)
1344 << wxT("]");
1345 m_pLine = m_pConfig->LineListInsert(strFullName,
1346 pParent->GetLastGroupLine());
1347 pParent->SetLastGroup(this); // we're surely after all the others
1348 }
1349 //else: this is the root group and so we return NULL because we don't
1350 // have any group line
1351 }
1352
1353 return m_pLine;
1354 }
1355
1356 // Return the last line belonging to the subgroups of this group (after which
1357 // we can add a new subgroup), if we don't have any subgroups or entries our
1358 // last line is the group line (m_pLine) itself.
1359 wxFileConfigLineList *wxFileConfigGroup::GetLastGroupLine()
1360 {
1361 // if we have any subgroups, our last line is the last line of the last
1362 // subgroup
1363 if ( m_pLastGroup )
1364 {
1365 wxFileConfigLineList *pLine = m_pLastGroup->GetLastGroupLine();
1366
1367 wxASSERT_MSG( pLine, _T("last group must have !NULL associated line") );
1368
1369 return pLine;
1370 }
1371
1372 // no subgroups, so the last line is the line of thelast entry (if any)
1373 return GetLastEntryLine();
1374 }
1375
1376 // return the last line belonging to the entries of this group (after which
1377 // we can add a new entry), if we don't have any entries we will add the new
1378 // one immediately after the group line itself.
1379 wxFileConfigLineList *wxFileConfigGroup::GetLastEntryLine()
1380 {
1381 wxLogTrace( _T("wxFileConfig"),
1382 _T(" GetLastEntryLine() for Group '%s'"),
1383 Name().c_str() );
1384
1385 if ( m_pLastEntry )
1386 {
1387 wxFileConfigLineList *pLine = m_pLastEntry->GetLine();
1388
1389 wxASSERT_MSG( pLine, _T("last entry must have !NULL associated line") );
1390
1391 return pLine;
1392 }
1393
1394 // no entries: insert after the group header, if any
1395 return GetGroupLine();
1396 }
1397
1398 void wxFileConfigGroup::SetLastEntry(wxFileConfigEntry *pEntry)
1399 {
1400 m_pLastEntry = pEntry;
1401
1402 if ( !m_pLine )
1403 {
1404 // the only situation in which a group without its own line can have
1405 // an entry is when the first entry is added to the initially empty
1406 // root pseudo-group
1407 wxASSERT_MSG( !m_pParent, _T("unexpected for non root group") );
1408
1409 // let the group know that it does have a line in the file now
1410 m_pLine = pEntry->GetLine();
1411 }
1412 }
1413
1414 // ----------------------------------------------------------------------------
1415 // group name
1416 // ----------------------------------------------------------------------------
1417
1418 void wxFileConfigGroup::Rename(const wxString& newName)
1419 {
1420 wxCHECK_RET( m_pParent, _T("the root group can't be renamed") );
1421
1422 m_strName = newName;
1423
1424 // +1: no leading '/'
1425 wxString strFullName;
1426 strFullName << wxT("[") << (GetFullName().c_str() + 1) << wxT("]");
1427
1428 wxFileConfigLineList *line = GetGroupLine();
1429 wxCHECK_RET( line, _T("a non root group must have a corresponding line!") );
1430
1431 line->SetText(strFullName);
1432
1433 SetDirty();
1434 }
1435
1436 wxString wxFileConfigGroup::GetFullName() const
1437 {
1438 if ( Parent() )
1439 return Parent()->GetFullName() + wxCONFIG_PATH_SEPARATOR + Name();
1440 else
1441 return wxT("");
1442 }
1443
1444 // ----------------------------------------------------------------------------
1445 // find an item
1446 // ----------------------------------------------------------------------------
1447
1448 // use binary search because the array is sorted
1449 wxFileConfigEntry *
1450 wxFileConfigGroup::FindEntry(const wxChar *szName) const
1451 {
1452 size_t i,
1453 lo = 0,
1454 hi = m_aEntries.Count();
1455 int res;
1456 wxFileConfigEntry *pEntry;
1457
1458 while ( lo < hi ) {
1459 i = (lo + hi)/2;
1460 pEntry = m_aEntries[i];
1461
1462 #if wxCONFIG_CASE_SENSITIVE
1463 res = wxStrcmp(pEntry->Name(), szName);
1464 #else
1465 res = wxStricmp(pEntry->Name(), szName);
1466 #endif
1467
1468 if ( res > 0 )
1469 hi = i;
1470 else if ( res < 0 )
1471 lo = i + 1;
1472 else
1473 return pEntry;
1474 }
1475
1476 return NULL;
1477 }
1478
1479 wxFileConfigGroup *
1480 wxFileConfigGroup::FindSubgroup(const wxChar *szName) const
1481 {
1482 size_t i,
1483 lo = 0,
1484 hi = m_aSubgroups.Count();
1485 int res;
1486 wxFileConfigGroup *pGroup;
1487
1488 while ( lo < hi ) {
1489 i = (lo + hi)/2;
1490 pGroup = m_aSubgroups[i];
1491
1492 #if wxCONFIG_CASE_SENSITIVE
1493 res = wxStrcmp(pGroup->Name(), szName);
1494 #else
1495 res = wxStricmp(pGroup->Name(), szName);
1496 #endif
1497
1498 if ( res > 0 )
1499 hi = i;
1500 else if ( res < 0 )
1501 lo = i + 1;
1502 else
1503 return pGroup;
1504 }
1505
1506 return NULL;
1507 }
1508
1509 // ----------------------------------------------------------------------------
1510 // create a new item
1511 // ----------------------------------------------------------------------------
1512
1513 // create a new entry and add it to the current group
1514 wxFileConfigEntry *wxFileConfigGroup::AddEntry(const wxString& strName, int nLine)
1515 {
1516 wxASSERT( FindEntry(strName) == 0 );
1517
1518 wxFileConfigEntry *pEntry = new wxFileConfigEntry(this, strName, nLine);
1519
1520 m_aEntries.Add(pEntry);
1521 return pEntry;
1522 }
1523
1524 // create a new group and add it to the current group
1525 wxFileConfigGroup *wxFileConfigGroup::AddSubgroup(const wxString& strName)
1526 {
1527 wxASSERT( FindSubgroup(strName) == 0 );
1528
1529 wxFileConfigGroup *pGroup = new wxFileConfigGroup(this, strName, m_pConfig);
1530
1531 m_aSubgroups.Add(pGroup);
1532 return pGroup;
1533 }
1534
1535 // ----------------------------------------------------------------------------
1536 // delete an item
1537 // ----------------------------------------------------------------------------
1538
1539 /*
1540 The delete operations are _very_ slow if we delete the last item of this
1541 group (see comments before GetXXXLineXXX functions for more details),
1542 so it's much better to start with the first entry/group if we want to
1543 delete several of them.
1544 */
1545
1546 bool wxFileConfigGroup::DeleteSubgroupByName(const wxChar *szName)
1547 {
1548 wxFileConfigGroup * const pGroup = FindSubgroup(szName);
1549
1550 return pGroup ? DeleteSubgroup(pGroup) : FALSE;
1551 }
1552
1553 // Delete the subgroup and remove all references to it from
1554 // other data structures.
1555 bool wxFileConfigGroup::DeleteSubgroup(wxFileConfigGroup *pGroup)
1556 {
1557 wxCHECK_MSG( pGroup, FALSE, _T("deleting non existing group?") );
1558
1559 wxLogTrace( _T("wxFileConfig"),
1560 _T("Deleting group '%s' from '%s'"),
1561 pGroup->Name().c_str(),
1562 Name().c_str() );
1563
1564 wxLogTrace( _T("wxFileConfig"),
1565 _T(" (m_pLine) = prev: %p, this %p, next %p"),
1566 ((m_pLine) ? m_pLine->Prev() : 0),
1567 m_pLine,
1568 ((m_pLine) ? m_pLine->Next() : 0) );
1569 wxLogTrace( _T("wxFileConfig"),
1570 _T(" text: '%s'"),
1571 ((m_pLine) ? m_pLine->Text().c_str() : wxEmptyString) );
1572
1573 // delete all entries
1574 size_t nCount = pGroup->m_aEntries.Count();
1575
1576 wxLogTrace(_T("wxFileConfig"),
1577 _T("Removing %lu Entries"),
1578 (unsigned long)nCount );
1579
1580 for ( size_t nEntry = 0; nEntry < nCount; nEntry++ )
1581 {
1582 wxFileConfigLineList *pLine = pGroup->m_aEntries[nEntry]->GetLine();
1583
1584 if ( pLine != 0 )
1585 {
1586 wxLogTrace( _T("wxFileConfig"),
1587 _T(" '%s'"),
1588 pLine->Text().c_str() );
1589 m_pConfig->LineListRemove(pLine);
1590 }
1591 }
1592
1593 // and subgroups of this subgroup
1594
1595 nCount = pGroup->m_aSubgroups.Count();
1596
1597 wxLogTrace( _T("wxFileConfig"),
1598 _T("Removing %lu SubGroups"),
1599 (unsigned long)nCount );
1600
1601 for ( size_t nGroup = 0; nGroup < nCount; nGroup++ )
1602 {
1603 pGroup->DeleteSubgroup(pGroup->m_aSubgroups[0]);
1604 }
1605
1606 // finally the group itself
1607
1608 wxFileConfigLineList *pLine = pGroup->m_pLine;
1609
1610 if ( pLine != 0 )
1611 {
1612 wxLogTrace( _T("wxFileConfig"),
1613 _T(" Removing line entry for Group '%s' : '%s'"),
1614 pGroup->Name().c_str(),
1615 pLine->Text().c_str() );
1616 wxLogTrace( _T("wxFileConfig"),
1617 _T(" Removing from Group '%s' : '%s'"),
1618 Name().c_str(),
1619 ((m_pLine) ? m_pLine->Text().c_str() : wxEmptyString) );
1620
1621 // notice that we may do this test inside the previous "if"
1622 // because the last entry's line is surely !NULL
1623
1624 if ( pGroup == m_pLastGroup )
1625 {
1626 wxLogTrace( _T("wxFileConfig"),
1627 _T(" ------- Removing last group -------") );
1628
1629 // our last entry is being deleted, so find the last one which stays.
1630 // go back until we find a subgroup or reach the group's line, unless
1631 // we are the root group, which we'll notice shortly.
1632
1633 wxFileConfigGroup *pNewLast = 0;
1634 size_t nSubgroups = m_aSubgroups.Count();
1635 wxFileConfigLineList *pl;
1636
1637 for ( pl = pLine->Prev(); pl != m_pLine; pl = pl->Prev() )
1638 {
1639 // is it our subgroup?
1640
1641 for ( size_t n = 0; (pNewLast == 0) && (n < nSubgroups); n++ )
1642 {
1643 // do _not_ call GetGroupLine! we don't want to add it to the local
1644 // file if it's not already there
1645
1646 if ( m_aSubgroups[n]->m_pLine == m_pLine )
1647 pNewLast = m_aSubgroups[n];
1648 }
1649
1650 if ( pNewLast != 0 ) // found?
1651 break;
1652 }
1653
1654 if ( pl == m_pLine || m_pParent == 0 )
1655 {
1656 wxLogTrace( _T("wxFileConfig"),
1657 _T(" ------- No previous group found -------") );
1658
1659 wxASSERT_MSG( !pNewLast || m_pLine == 0,
1660 _T("how comes it has the same line as we?") );
1661
1662 // we've reached the group line without finding any subgroups,
1663 // or realised we removed the last group from the root.
1664
1665 m_pLastGroup = 0;
1666 }
1667 else
1668 {
1669 wxLogTrace( _T("wxFileConfig"),
1670 _T(" ------- Last Group set to '%s' -------"),
1671 pNewLast->Name().c_str() );
1672
1673 m_pLastGroup = pNewLast;
1674 }
1675 }
1676
1677 m_pConfig->LineListRemove(pLine);
1678 }
1679 else
1680 {
1681 wxLogTrace( _T("wxFileConfig"),
1682 _T(" No line entry for Group '%s'?"),
1683 pGroup->Name().c_str() );
1684 }
1685
1686 SetDirty();
1687
1688 m_aSubgroups.Remove(pGroup);
1689 delete pGroup;
1690
1691 return TRUE;
1692 }
1693
1694 bool wxFileConfigGroup::DeleteEntry(const wxChar *szName)
1695 {
1696 wxFileConfigEntry *pEntry = FindEntry(szName);
1697 wxCHECK( pEntry != NULL, FALSE ); // deleting non existing item?
1698
1699 wxFileConfigLineList *pLine = pEntry->GetLine();
1700 if ( pLine != NULL ) {
1701 // notice that we may do this test inside the previous "if" because the
1702 // last entry's line is surely !NULL
1703 if ( pEntry == m_pLastEntry ) {
1704 // our last entry is being deleted - find the last one which stays
1705 wxASSERT( m_pLine != NULL ); // if we have an entry with !NULL pLine...
1706
1707 // go back until we find another entry or reach the group's line
1708 wxFileConfigEntry *pNewLast = NULL;
1709 size_t n, nEntries = m_aEntries.Count();
1710 wxFileConfigLineList *pl;
1711 for ( pl = pLine->Prev(); pl != m_pLine; pl = pl->Prev() ) {
1712 // is it our subgroup?
1713 for ( n = 0; (pNewLast == NULL) && (n < nEntries); n++ ) {
1714 if ( m_aEntries[n]->GetLine() == m_pLine )
1715 pNewLast = m_aEntries[n];
1716 }
1717
1718 if ( pNewLast != NULL ) // found?
1719 break;
1720 }
1721
1722 if ( pl == m_pLine ) {
1723 wxASSERT( !pNewLast ); // how comes it has the same line as we?
1724
1725 // we've reached the group line without finding any subgroups
1726 m_pLastEntry = NULL;
1727 }
1728 else
1729 m_pLastEntry = pNewLast;
1730 }
1731
1732 m_pConfig->LineListRemove(pLine);
1733 }
1734
1735 // we must be written back for the changes to be saved
1736 SetDirty();
1737
1738 m_aEntries.Remove(pEntry);
1739 delete pEntry;
1740
1741 return TRUE;
1742 }
1743
1744 // ----------------------------------------------------------------------------
1745 //
1746 // ----------------------------------------------------------------------------
1747 void wxFileConfigGroup::SetDirty()
1748 {
1749 m_bDirty = TRUE;
1750 if ( Parent() != NULL ) // propagate upwards
1751 Parent()->SetDirty();
1752 }
1753
1754 // ============================================================================
1755 // wxFileConfig::wxFileConfigEntry
1756 // ============================================================================
1757
1758 // ----------------------------------------------------------------------------
1759 // ctor
1760 // ----------------------------------------------------------------------------
1761 wxFileConfigEntry::wxFileConfigEntry(wxFileConfigGroup *pParent,
1762 const wxString& strName,
1763 int nLine)
1764 : m_strName(strName)
1765 {
1766 wxASSERT( !strName.IsEmpty() );
1767
1768 m_pParent = pParent;
1769 m_nLine = nLine;
1770 m_pLine = NULL;
1771
1772 m_bDirty =
1773 m_bHasValue = FALSE;
1774
1775 m_bImmutable = strName[0] == wxCONFIG_IMMUTABLE_PREFIX;
1776 if ( m_bImmutable )
1777 m_strName.erase(0, 1); // remove first character
1778 }
1779
1780 // ----------------------------------------------------------------------------
1781 // set value
1782 // ----------------------------------------------------------------------------
1783
1784 void wxFileConfigEntry::SetLine(wxFileConfigLineList *pLine)
1785 {
1786 if ( m_pLine != NULL ) {
1787 wxLogWarning(_("entry '%s' appears more than once in group '%s'"),
1788 Name().c_str(), m_pParent->GetFullName().c_str());
1789 }
1790
1791 m_pLine = pLine;
1792 Group()->SetLastEntry(this);
1793 }
1794
1795 // second parameter is FALSE if we read the value from file and prevents the
1796 // entry from being marked as 'dirty'
1797 void wxFileConfigEntry::SetValue(const wxString& strValue, bool bUser)
1798 {
1799 if ( bUser && IsImmutable() )
1800 {
1801 wxLogWarning( _("attempt to change immutable key '%s' ignored."),
1802 Name().c_str());
1803 return;
1804 }
1805
1806 // do nothing if it's the same value: but don't test for it
1807 // if m_bHasValue hadn't been set yet or we'd never write
1808 // empty values to the file
1809
1810 if ( m_bHasValue && strValue == m_strValue )
1811 return;
1812
1813 m_bHasValue = TRUE;
1814 m_strValue = strValue;
1815
1816 if ( bUser )
1817 {
1818 wxString strValFiltered;
1819
1820 if ( Group()->Config()->GetStyle() & wxCONFIG_USE_NO_ESCAPE_CHARACTERS )
1821 {
1822 strValFiltered = strValue;
1823 }
1824 else {
1825 strValFiltered = FilterOutValue(strValue);
1826 }
1827
1828 wxString strLine;
1829 strLine << FilterOutEntryName(m_strName) << wxT('=') << strValFiltered;
1830
1831 if ( m_pLine )
1832 {
1833 // entry was read from the local config file, just modify the line
1834 m_pLine->SetText(strLine);
1835 }
1836 else // this entry didn't exist in the local file
1837 {
1838 // add a new line to the file
1839 wxFileConfigLineList *line = Group()->GetLastEntryLine();
1840 m_pLine = Group()->Config()->LineListInsert(strLine, line);
1841
1842 Group()->SetLastEntry(this);
1843 }
1844
1845 SetDirty();
1846 }
1847 }
1848
1849 void wxFileConfigEntry::SetDirty()
1850 {
1851 m_bDirty = TRUE;
1852 Group()->SetDirty();
1853 }
1854
1855 // ============================================================================
1856 // global functions
1857 // ============================================================================
1858
1859 // ----------------------------------------------------------------------------
1860 // compare functions for array sorting
1861 // ----------------------------------------------------------------------------
1862
1863 int CompareEntries(wxFileConfigEntry *p1, wxFileConfigEntry *p2)
1864 {
1865 #if wxCONFIG_CASE_SENSITIVE
1866 return wxStrcmp(p1->Name(), p2->Name());
1867 #else
1868 return wxStricmp(p1->Name(), p2->Name());
1869 #endif
1870 }
1871
1872 int CompareGroups(wxFileConfigGroup *p1, wxFileConfigGroup *p2)
1873 {
1874 #if wxCONFIG_CASE_SENSITIVE
1875 return wxStrcmp(p1->Name(), p2->Name());
1876 #else
1877 return wxStricmp(p1->Name(), p2->Name());
1878 #endif
1879 }
1880
1881 // ----------------------------------------------------------------------------
1882 // filter functions
1883 // ----------------------------------------------------------------------------
1884
1885 // undo FilterOutValue
1886 static wxString FilterInValue(const wxString& str)
1887 {
1888 wxString strResult;
1889 strResult.Alloc(str.Len());
1890
1891 bool bQuoted = !str.IsEmpty() && str[0] == '"';
1892
1893 for ( size_t n = bQuoted ? 1 : 0; n < str.Len(); n++ ) {
1894 if ( str[n] == wxT('\\') ) {
1895 switch ( str[++n] ) {
1896 case wxT('n'):
1897 strResult += wxT('\n');
1898 break;
1899
1900 case wxT('r'):
1901 strResult += wxT('\r');
1902 break;
1903
1904 case wxT('t'):
1905 strResult += wxT('\t');
1906 break;
1907
1908 case wxT('\\'):
1909 strResult += wxT('\\');
1910 break;
1911
1912 case wxT('"'):
1913 strResult += wxT('"');
1914 break;
1915 }
1916 }
1917 else {
1918 if ( str[n] != wxT('"') || !bQuoted )
1919 strResult += str[n];
1920 else if ( n != str.Len() - 1 ) {
1921 wxLogWarning(_("unexpected \" at position %d in '%s'."),
1922 n, str.c_str());
1923 }
1924 //else: it's the last quote of a quoted string, ok
1925 }
1926 }
1927
1928 return strResult;
1929 }
1930
1931 // quote the string before writing it to file
1932 static wxString FilterOutValue(const wxString& str)
1933 {
1934 if ( !str )
1935 return str;
1936
1937 wxString strResult;
1938 strResult.Alloc(str.Len());
1939
1940 // quoting is necessary to preserve spaces in the beginning of the string
1941 bool bQuote = wxIsspace(str[0]) || str[0] == wxT('"');
1942
1943 if ( bQuote )
1944 strResult += wxT('"');
1945
1946 wxChar c;
1947 for ( size_t n = 0; n < str.Len(); n++ ) {
1948 switch ( str[n] ) {
1949 case wxT('\n'):
1950 c = wxT('n');
1951 break;
1952
1953 case wxT('\r'):
1954 c = wxT('r');
1955 break;
1956
1957 case wxT('\t'):
1958 c = wxT('t');
1959 break;
1960
1961 case wxT('\\'):
1962 c = wxT('\\');
1963 break;
1964
1965 case wxT('"'):
1966 if ( bQuote ) {
1967 c = wxT('"');
1968 break;
1969 }
1970 //else: fall through
1971
1972 default:
1973 strResult += str[n];
1974 continue; // nothing special to do
1975 }
1976
1977 // we get here only for special characters
1978 strResult << wxT('\\') << c;
1979 }
1980
1981 if ( bQuote )
1982 strResult += wxT('"');
1983
1984 return strResult;
1985 }
1986
1987 // undo FilterOutEntryName
1988 static wxString FilterInEntryName(const wxString& str)
1989 {
1990 wxString strResult;
1991 strResult.Alloc(str.Len());
1992
1993 for ( const wxChar *pc = str.c_str(); *pc != '\0'; pc++ ) {
1994 if ( *pc == wxT('\\') )
1995 pc++;
1996
1997 strResult += *pc;
1998 }
1999
2000 return strResult;
2001 }
2002
2003 // sanitize entry or group name: insert '\\' before any special characters
2004 static wxString FilterOutEntryName(const wxString& str)
2005 {
2006 wxString strResult;
2007 strResult.Alloc(str.Len());
2008
2009 for ( const wxChar *pc = str.c_str(); *pc != wxT('\0'); pc++ ) {
2010 wxChar c = *pc;
2011
2012 // we explicitly allow some of "safe" chars and 8bit ASCII characters
2013 // which will probably never have special meaning
2014 // NB: note that wxCONFIG_IMMUTABLE_PREFIX and wxCONFIG_PATH_SEPARATOR
2015 // should *not* be quoted
2016 if ( !wxIsalnum(c) && !wxStrchr(wxT("@_/-!.*%"), c) && ((c & 0x80) == 0) )
2017 strResult += wxT('\\');
2018
2019 strResult += c;
2020 }
2021
2022 return strResult;
2023 }
2024
2025 // we can't put ?: in the ctor initializer list because it confuses some
2026 // broken compilers (Borland C++)
2027 static wxString GetAppName(const wxString& appName)
2028 {
2029 if ( !appName && wxTheApp )
2030 return wxTheApp->GetAppName();
2031 else
2032 return appName;
2033 }
2034
2035 #endif // wxUSE_CONFIG
2036
2037
2038 // vi:sts=4:sw=4:et
wxWidgets (Impactor)