X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2049ba38adafa0ec146880de29f26e32dd69a125..518f33a4e50585cab19757375a2c348e61d2594f:/src/common/fileconf.cpp?ds=sidebyside diff --git a/src/common/fileconf.cpp b/src/common/fileconf.cpp index 2482693f65..92ca337641 100644 --- a/src/common/fileconf.cpp +++ b/src/common/fileconf.cpp @@ -28,16 +28,19 @@ #endif //__BORLANDC__ #ifndef WX_PRECOMP - #include - #include + #include "wx/string.h" + #include "wx/intl.h" #endif //WX_PRECOMP -#include -#include -#include -#include -#include -#include +#include "wx/app.h" +#include "wx/dynarray.h" +#include "wx/file.h" +#include "wx/log.h" +#include "wx/textfile.h" +#include "wx/config.h" +#include "wx/fileconf.h" + +#include "wx/utils.h" // for wxGetHomeDir // _WINDOWS_ is defined when windows.h is included, // __WXMSW__ is defined for MS Windows compilation @@ -48,15 +51,33 @@ #include #include +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- +#define CONST_CAST ((wxFileConfig *)this)-> + +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- +#ifndef MAX_PATH + #define MAX_PATH 512 +#endif + // ---------------------------------------------------------------------------- // global functions declarations // ---------------------------------------------------------------------------- // is 'c' a valid character in group name? -// NB: APPCONF_IMMUTABLE_PREFIX and APPCONF_PATH_SEPARATOR must be valid chars, +// NB: wxCONFIG_IMMUTABLE_PREFIX and wxCONFIG_PATH_SEPARATOR must be valid chars, // but _not_ ']' (group name delimiter) inline bool IsValid(char c) { return isalnum(c) || strchr("@_/-!.*%", c); } +// compare functions for sorting the arrays +static int CompareEntries(wxFileConfig::ConfigEntry *p1, + wxFileConfig::ConfigEntry *p2); +static int CompareGroups(wxFileConfig::ConfigGroup *p1, + wxFileConfig::ConfigGroup *p2); + // filter strings static wxString FilterIn(const wxString& str); static wxString FilterOut(const wxString& str); @@ -68,26 +89,50 @@ static wxString FilterOut(const wxString& str); // ---------------------------------------------------------------------------- // static functions // ---------------------------------------------------------------------------- -wxString wxFileConfig::GetGlobalFileName(const char *szFile) +wxString wxFileConfig::GetGlobalDir() { - wxString str; + wxString strDir; + + #ifdef __UNIX__ + strDir = "/etc/"; + #elif defined(__WXSTUBS__) + wxASSERT_MSG( FALSE, "TODO" ) ; + #else // Windows + char szWinDir[MAX_PATH]; + ::GetWindowsDirectory(szWinDir, MAX_PATH); - bool bNoExt = strchr(szFile, '.') == NULL; + strDir = szWinDir; + strDir << '\\'; + #endif // Unix/Windows + + return strDir; +} + +wxString wxFileConfig::GetLocalDir() +{ + wxString strDir; + + wxGetHomeDir(&strDir); + +#ifdef __UNIX__ + if (strDir.Last() != '/') strDir << '/'; +#else + if (strDir.Last() != '\\') strDir << '\\'; +#endif + + return strDir; +} + +wxString wxFileConfig::GetGlobalFileName(const char *szFile) +{ + wxString str = GetGlobalDir(); + str << szFile; + if ( strchr(szFile, '.') == NULL ) #ifdef __UNIX__ - str << "/etc/" << szFile; - if ( bNoExt ) - str << ".conf"; + str << ".conf"; #else // Windows - #ifndef _MAX_PATH - #define _MAX_PATH 512 - #endif - - char szWinDir[_MAX_PATH]; - ::GetWindowsDirectory(szWinDir, _MAX_PATH); - str << szWinDir << "\\" << szFile; - if ( bNoExt ) - str << ".ini"; + str << ".ini"; #endif // UNIX/Win return str; @@ -95,32 +140,18 @@ wxString wxFileConfig::GetGlobalFileName(const char *szFile) wxString wxFileConfig::GetLocalFileName(const char *szFile) { - wxString str; + wxString str = GetLocalDir(); #ifdef __UNIX__ - const char *szHome = getenv("HOME"); - if ( szHome == NULL ) { - // we're homeless... - wxLogWarning("can't find user's HOME, using current directory."); - szHome = "."; - } - str << szHome << "/." << szFile; - #else // Windows - #ifdef __WIN32__ - const char *szHome = getenv("HOMEDRIVE"); - if ( szHome != NULL ) - str << szHome; - szHome = getenv("HOMEPATH"); - if ( szHome != NULL ) - str << szHome; - str << szFile; - if ( strchr(szFile, '.') == NULL ) - str << ".ini"; - #else // Win16 - // Win16 has no idea about home, so use the current directory instead - str << ".\\" << szFile; - #endif // WIN16/32 - #endif // UNIX/Win + str << '.'; + #endif + + str << szFile; + + #ifdef __WXMSW__ + if ( strchr(szFile, '.') == NULL ) + str << ".ini"; + #endif return str; } @@ -137,50 +168,101 @@ void wxFileConfig::Init() m_linesHead = m_linesTail = NULL; - m_bExpandEnvVars = TRUE; - - m_strPath.Empty(); -} - -wxFileConfig::wxFileConfig(const wxString& strLocal, const wxString& strGlobal) - : m_strLocalFile(strLocal), m_strGlobalFile(strGlobal) -{ - Init(); - // it's not an error if (one of the) file(s) doesn't exist // parse the global file - if ( !strGlobal.IsEmpty() ) { - if ( wxFile::Exists(strGlobal) ) { - wxTextFile fileGlobal(strGlobal); + if ( !m_strGlobalFile.IsEmpty() && wxFile::Exists(m_strGlobalFile) ) { + wxTextFile fileGlobal(m_strGlobalFile); - if ( fileGlobal.Open() ) { - Parse(fileGlobal, FALSE /* global */); - SetRootPath(); - } - else - wxLogWarning("Can't open global configuration file '%s'.", - strGlobal.c_str()); + if ( fileGlobal.Open() ) { + Parse(fileGlobal, FALSE /* global */); + SetRootPath(); } + else + wxLogWarning(_("can't open global configuration file '%s'."), + m_strGlobalFile.c_str()); } // parse the local file - if ( wxFile::Exists(strLocal) ) { - wxTextFile fileLocal(strLocal); + if ( !m_strLocalFile.IsEmpty() && wxFile::Exists(m_strLocalFile) ) { + wxTextFile fileLocal(m_strLocalFile); if ( fileLocal.Open() ) { Parse(fileLocal, TRUE /* local */); SetRootPath(); } else - wxLogWarning("Can't open user configuration file '%s'.", - strLocal.c_str()); + wxLogWarning(_("can't open user configuration file '%s'."), + m_strLocalFile.c_str()); + } +} + +// constructor supports creation of wxFileConfig objects of any type +wxFileConfig::wxFileConfig(const wxString& appName, const wxString& vendorName, + const wxString& strLocal, const wxString& strGlobal, + long style) + : wxConfigBase(appName, vendorName, strLocal, strGlobal, style), + m_strLocalFile(strLocal), m_strGlobalFile(strGlobal) +{ + // Make up an application name if not supplied + if (appName.IsEmpty() && wxTheApp) + { + SetAppName(wxTheApp->GetAppName()); + } + + // Make up names for files if empty + if ( m_strLocalFile.IsEmpty() && (style & wxCONFIG_USE_LOCAL_FILE) ) + { + m_strLocalFile = GetLocalFileName(GetAppName()); + } + + if ( m_strGlobalFile.IsEmpty() && (style & wxCONFIG_USE_GLOBAL_FILE) ) + { + m_strGlobalFile = GetGlobalFileName(GetAppName()); + } + + // Check if styles are not supplied, but filenames are, in which case + // add the correct styles. + if ( !m_strLocalFile.IsEmpty() ) + SetStyle(GetStyle() | wxCONFIG_USE_LOCAL_FILE); + + if ( !m_strGlobalFile.IsEmpty() ) + SetStyle(GetStyle() | wxCONFIG_USE_GLOBAL_FILE); + + // if the path is not absolute, prepend the standard directory to it + if ( !m_strLocalFile.IsEmpty() && !wxIsAbsolutePath(m_strLocalFile) ) + { + wxString strLocal = m_strLocalFile; + m_strLocalFile = GetLocalDir(); + m_strLocalFile << strLocal; + } + + if ( !m_strGlobalFile.IsEmpty() && !wxIsAbsolutePath(m_strGlobalFile) ) + { + wxString strGlobal = m_strGlobalFile; + m_strGlobalFile = GetGlobalDir(); + m_strGlobalFile << strGlobal; + } + + Init(); +} + +void wxFileConfig::CleanUp() +{ + delete m_pRootGroup; + + LineList *pCur = m_linesHead; + while ( pCur != NULL ) { + LineList *pNext = pCur->Next(); + delete pCur; + pCur = pNext; } } wxFileConfig::~wxFileConfig() { Flush(); - delete m_pRootGroup; + + CleanUp(); } // ---------------------------------------------------------------------------- @@ -191,14 +273,18 @@ void wxFileConfig::Parse(wxTextFile& file, bool bLocal) { const char *pStart; const char *pEnd; + wxString strLine; + + size_t nLineCount = file.GetLineCount(); + for ( size_t n = 0; n < nLineCount; n++ ) { + strLine = file[n]; - for ( uint n = 0; n < file.GetLineCount(); n++ ) { // add the line to linked list if ( bLocal ) - LineListAppend(file[n]); + LineListAppend(strLine); // skip leading spaces - for ( pStart = file[n]; isspace(*pStart); pStart++ ) + for ( pStart = strLine; isspace(*pStart); pStart++ ) ; // skip blank/comment lines @@ -214,15 +300,15 @@ void wxFileConfig::Parse(wxTextFile& file, bool bLocal) } if ( *pEnd != ']' ) { - wxLogError("file '%s': unexpected character at line %d (missing ']'?)", - file.GetName(), n + 1); + wxLogError(_("file '%s': unexpected character %c at line %d."), + file.GetName(), *pEnd, n + 1); continue; // skip this line } // group name here is always considered as abs path wxString strGroup; pStart++; - strGroup << APPCONF_PATH_SEPARATOR << wxString(pStart, pEnd - pStart); + strGroup << wxCONFIG_PATH_SEPARATOR << wxString(pStart, pEnd - pStart); // will create it if doesn't yet exist SetPath(strGroup); @@ -245,7 +331,8 @@ void wxFileConfig::Parse(wxTextFile& file, bool bLocal) break; default: - wxLogWarning("file '%s', line %d: '%s' ignored after group header.", + wxLogWarning(_("file '%s', line %d: '%s' " + "ignored after group header."), file.GetName(), n + 1, pEnd); bCont = FALSE; } @@ -263,7 +350,8 @@ void wxFileConfig::Parse(wxTextFile& file, bool bLocal) pEnd++; if ( *pEnd++ != '=' ) { - wxLogError("file '%s', line %d: '=' expected.", file.GetName(), n + 1); + wxLogError(_("file '%s', line %d: '=' expected."), + file.GetName(), n + 1); } else { ConfigEntry *pEntry = m_pCurrentGroup->FindEntry(strKey); @@ -278,7 +366,8 @@ void wxFileConfig::Parse(wxTextFile& file, bool bLocal) else { if ( bLocal && pEntry->IsImmutable() ) { // immutable keys can't be changed by user - wxLogWarning("file '%s', line %d: value for immutable key '%s' ignored.", + wxLogWarning(_("file '%s', line %d: value for " + "immutable key '%s' ignored."), file.GetName(), n + 1, strKey.c_str()); continue; } @@ -288,7 +377,8 @@ void wxFileConfig::Parse(wxTextFile& file, bool bLocal) // (c) key from global file now found in local one // which is exactly what we want. else if ( !bLocal || pEntry->IsLocal() ) { - wxLogWarning("file '%s', line %d: key '%s' was first found at line %d.", + wxLogWarning(_("file '%s', line %d: key '%s' was first " + "found at line %d."), file.GetName(), n + 1, strKey.c_str(), pEntry->Line()); if ( bLocal ) @@ -300,12 +390,7 @@ void wxFileConfig::Parse(wxTextFile& file, bool bLocal) while ( isspace(*pEnd) ) pEnd++; - wxString strValue; - if (m_bExpandEnvVars) - strValue = ExpandEnvVars(FilterIn(pEnd)); - else - strValue = FilterIn(pEnd); - pEntry->SetValue(strValue, FALSE); + pEntry->SetValue(FilterIn(pEnd), FALSE /* read from file */); } } } @@ -330,19 +415,19 @@ void wxFileConfig::SetPath(const wxString& strPath) return; } - if ( strPath[0] == APPCONF_PATH_SEPARATOR ) { + if ( strPath[0] == wxCONFIG_PATH_SEPARATOR ) { // absolute path - SplitPath(aParts, strPath); + wxSplitPath(aParts, strPath); } else { // relative path, combine with current one wxString strFullPath = m_strPath; - strFullPath << APPCONF_PATH_SEPARATOR << strPath; - SplitPath(aParts, strFullPath); + strFullPath << wxCONFIG_PATH_SEPARATOR << strPath; + wxSplitPath(aParts, strFullPath); } // change current group - uint n; + size_t n; m_pCurrentGroup = m_pRootGroup; for ( n = 0; n < aParts.Count(); n++ ) { ConfigGroup *pNextGroup = m_pCurrentGroup->FindSubgroup(aParts[n]); @@ -354,7 +439,7 @@ void wxFileConfig::SetPath(const wxString& strPath) // recombine path parts in one variable m_strPath.Empty(); for ( n = 0; n < aParts.Count(); n++ ) { - m_strPath << APPCONF_PATH_SEPARATOR << aParts[n]; + m_strPath << wxCONFIG_PATH_SEPARATOR << aParts[n]; } } @@ -362,15 +447,15 @@ void wxFileConfig::SetPath(const wxString& strPath) // enumeration // ---------------------------------------------------------------------------- -bool wxFileConfig::GetFirstGroup(wxString& str, long& lIndex) +bool wxFileConfig::GetFirstGroup(wxString& str, long& lIndex) const { lIndex = 0; return GetNextGroup(str, lIndex); } -bool wxFileConfig::GetNextGroup (wxString& str, long& lIndex) +bool wxFileConfig::GetNextGroup (wxString& str, long& lIndex) const { - if ( uint(lIndex) < m_pCurrentGroup->Groups().Count() ) { + if ( size_t(lIndex) < m_pCurrentGroup->Groups().Count() ) { str = m_pCurrentGroup->Groups()[lIndex++]->Name(); return TRUE; } @@ -378,15 +463,15 @@ bool wxFileConfig::GetNextGroup (wxString& str, long& lIndex) return FALSE; } -bool wxFileConfig::GetFirstEntry(wxString& str, long& lIndex) +bool wxFileConfig::GetFirstEntry(wxString& str, long& lIndex) const { lIndex = 0; return GetNextEntry(str, lIndex); } -bool wxFileConfig::GetNextEntry (wxString& str, long& lIndex) +bool wxFileConfig::GetNextEntry (wxString& str, long& lIndex) const { - if ( uint(lIndex) < m_pCurrentGroup->Entries().Count() ) { + if ( size_t(lIndex) < m_pCurrentGroup->Entries().Count() ) { str = m_pCurrentGroup->Entries()[lIndex++]->Name(); return TRUE; } @@ -394,13 +479,45 @@ bool wxFileConfig::GetNextEntry (wxString& str, long& lIndex) return FALSE; } +size_t wxFileConfig::GetNumberOfEntries(bool bRecursive) const +{ + size_t n = m_pCurrentGroup->Entries().Count(); + if ( bRecursive ) { + ConfigGroup *pOldCurrentGroup = m_pCurrentGroup; + size_t nSubgroups = m_pCurrentGroup->Groups().Count(); + for ( size_t nGroup = 0; nGroup < nSubgroups; nGroup++ ) { + CONST_CAST m_pCurrentGroup = m_pCurrentGroup->Groups()[nGroup]; + n += GetNumberOfEntries(TRUE); + CONST_CAST m_pCurrentGroup = pOldCurrentGroup; + } + } + + return n; +} + +size_t wxFileConfig::GetNumberOfGroups(bool bRecursive) const +{ + size_t n = m_pCurrentGroup->Groups().Count(); + if ( bRecursive ) { + ConfigGroup *pOldCurrentGroup = m_pCurrentGroup; + size_t nSubgroups = m_pCurrentGroup->Groups().Count(); + for ( size_t nGroup = 0; nGroup < nSubgroups; nGroup++ ) { + CONST_CAST m_pCurrentGroup = m_pCurrentGroup->Groups()[nGroup]; + n += GetNumberOfGroups(TRUE); + CONST_CAST m_pCurrentGroup = pOldCurrentGroup; + } + } + + return n; +} + // ---------------------------------------------------------------------------- // tests for existence // ---------------------------------------------------------------------------- bool wxFileConfig::HasGroup(const wxString& strName) const { - PathChanger path(this, strName); + wxConfigPathChanger path(this, strName); ConfigGroup *pGroup = m_pCurrentGroup->FindSubgroup(path.Name()); return pGroup != NULL; @@ -408,7 +525,7 @@ bool wxFileConfig::HasGroup(const wxString& strName) const bool wxFileConfig::HasEntry(const wxString& strName) const { - PathChanger path(this, strName); + wxConfigPathChanger path(this, strName); ConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name()); return pEntry != NULL; @@ -418,63 +535,100 @@ bool wxFileConfig::HasEntry(const wxString& strName) const // read/write values // ---------------------------------------------------------------------------- -const char *wxFileConfig::Read(const char *szKey, - const char *szDefault) const +bool wxFileConfig::Read(const wxString& key, + wxString* pStr) const { - PathChanger path(this, szKey); + wxConfigPathChanger path(this, key); ConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name()); - return pEntry == NULL ? szDefault : pEntry->Value().c_str(); + if (pEntry == NULL) { + return FALSE; + } + else { + *pStr = ExpandEnvVars(pEntry->Value()); + return TRUE; + } } -bool wxFileConfig::Read(wxString *pstr, - const char *szKey, - const char *szDefault) const +bool wxFileConfig::Read(const wxString& key, + wxString* pStr, const wxString& defVal) const { - PathChanger path(this, szKey); + wxConfigPathChanger path(this, key); ConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name()); if (pEntry == NULL) { - *pstr = szDefault; + if( IsRecordingDefaults() ) + ((wxFileConfig *)this)->Write(key,defVal); + *pStr = ExpandEnvVars(defVal); return FALSE; } else { - *pstr = pEntry->Value(); + *pStr = ExpandEnvVars(pEntry->Value()); return TRUE; } } -bool wxFileConfig::Read(long *pl, const char *szKey, long lDefault) const +bool wxFileConfig::Read(const wxString& key, long *pl) const { wxString str; - if ( Read(&str, szKey) ) { + if ( Read(key, & str) ) { *pl = atol(str); return TRUE; } else { - *pl = lDefault; return FALSE; } } -bool wxFileConfig::Write(const char *szKey, const char *szValue) +bool wxFileConfig::Write(const wxString& key, const wxString& szValue) { - PathChanger path(this, szKey); + wxConfigPathChanger path(this, key); - ConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name()); - if ( pEntry == NULL ) - pEntry = m_pCurrentGroup->AddEntry(path.Name()); - pEntry->SetValue(szValue); + wxString strName = path.Name(); + if ( strName.IsEmpty() ) { + // setting the value of a group is an error + wxASSERT_MSG( IsEmpty(szValue), _("can't set value of a group!") ); + + // ... except if it's empty in which case it's a way to force it's creation + m_pCurrentGroup->SetDirty(); + + // this will add a line for this group if it didn't have it before + (void)m_pCurrentGroup->GetGroupLine(); + } + else { + // writing an entry + + // check that the name is reasonable + if ( strName[0u] == wxCONFIG_IMMUTABLE_PREFIX ) { + wxLogError(_("Entry name can't start with '%c'."), + wxCONFIG_IMMUTABLE_PREFIX); + return FALSE; + } + + for ( const char *pc = strName; *pc != '\0'; pc++ ) { + if ( !IsValid(*pc) ) { + wxLogError(_("Character '%c' is invalid in a config entry name."), + *pc); + return FALSE; + } + } + + ConfigEntry *pEntry = m_pCurrentGroup->FindEntry(strName); + if ( pEntry == NULL ) + pEntry = m_pCurrentGroup->AddEntry(strName); + + pEntry->SetValue(szValue); + } return TRUE; } -bool wxFileConfig::Write(const char *szKey, long lValue) +bool wxFileConfig::Write(const wxString& key, long lValue) { // ltoa() is not ANSI :-( - char szBuf[40]; // should be good for sizeof(long) <= 16 (128 bits) - sprintf(szBuf, "%ld", lValue); - return Write(szKey, szBuf); + wxString buf; + buf.Printf("%ld", lValue); + return Write(key, buf); } bool wxFileConfig::Flush(bool /* bCurrentOnly */) @@ -485,14 +639,14 @@ bool wxFileConfig::Flush(bool /* bCurrentOnly */) wxTempFile file(m_strLocalFile); if ( !file.IsOpened() ) { - wxLogError("Can't open user configuration file."); + wxLogError(_("can't open user configuration file.")); return FALSE; } // write all strings to file for ( LineList *p = m_linesHead; p != NULL; p = p->Next() ) { if ( !file.Write(p->Text() + wxTextFile::GetEOL()) ) { - wxLogError("Can't write user configuration file."); + wxLogError(_("can't write user configuration file.")); return FALSE; } } @@ -504,9 +658,9 @@ bool wxFileConfig::Flush(bool /* bCurrentOnly */) // delete groups/entries // ---------------------------------------------------------------------------- -bool wxFileConfig::DeleteEntry(const char *szKey, bool bGroupIfEmptyAlso) +bool wxFileConfig::DeleteEntry(const wxString& key, bool bGroupIfEmptyAlso) { - PathChanger path(this, szKey); + wxConfigPathChanger path(this, key); if ( !m_pCurrentGroup->DeleteEntry(path.Name()) ) return FALSE; @@ -515,7 +669,7 @@ bool wxFileConfig::DeleteEntry(const char *szKey, bool bGroupIfEmptyAlso) if ( m_pCurrentGroup != m_pRootGroup ) { ConfigGroup *pGroup = m_pCurrentGroup; SetPath(".."); // changes m_pCurrentGroup! - m_pCurrentGroup->DeleteSubgroup(pGroup->Name()); + m_pCurrentGroup->DeleteSubgroupByName(pGroup->Name()); } //else: never delete the root group } @@ -523,25 +677,24 @@ bool wxFileConfig::DeleteEntry(const char *szKey, bool bGroupIfEmptyAlso) return TRUE; } -bool wxFileConfig::DeleteGroup(const char *szKey) +bool wxFileConfig::DeleteGroup(const wxString& key) { - PathChanger path(this, szKey); + wxConfigPathChanger path(this, key); - return m_pCurrentGroup->DeleteSubgroup(path.Name()); + return m_pCurrentGroup->DeleteSubgroupByName(path.Name()); } bool wxFileConfig::DeleteAll() { + CleanUp(); + const char *szFile = m_strLocalFile; - delete m_pRootGroup; - Init(); if ( remove(szFile) == -1 ) - wxLogSysError("Can't delete user configuration file '%s'", szFile); + wxLogSysError(_("can't delete user configuration file '%s'"), szFile); - szFile = m_strGlobalFile; - if ( remove(szFile) ) - wxLogSysError("Can't delete system configuration file '%s'", szFile); + m_strLocalFile = m_strGlobalFile = ""; + Init(); return TRUE; } @@ -599,16 +752,18 @@ void wxFileConfig::LineListRemove(LineList *pLine) { LineList *pPrev = pLine->Prev(), *pNext = pLine->Next(); - if ( pPrev == NULL ) { - // deleting the first entry + + // first entry? + if ( pPrev == NULL ) m_linesHead = pNext; - } - else { - // not the first entry + else pPrev->SetNext(pNext); - } - pNext->SetPrev(pPrev); + // last entry? + if ( pNext == NULL ) + m_linesTail = pPrev; + else + pNext->SetPrev(pPrev); delete pLine; } @@ -630,12 +785,15 @@ bool wxFileConfig::LineListIsEmpty() wxFileConfig::ConfigGroup::ConfigGroup(wxFileConfig::ConfigGroup *pParent, const wxString& strName, wxFileConfig *pConfig) - : m_strName(strName) + : m_aEntries(CompareEntries), + m_aSubgroups(CompareGroups), + m_strName(strName) { m_pConfig = pConfig; m_pParent = pParent; - m_pLine = NULL; m_bDirty = FALSE; + m_pLine = NULL; + m_pLastEntry = NULL; m_pLastGroup = NULL; } @@ -644,7 +802,7 @@ wxFileConfig::ConfigGroup::ConfigGroup(wxFileConfig::ConfigGroup *pParent, wxFileConfig::ConfigGroup::~ConfigGroup() { // entries - uint n, nCount = m_aEntries.Count(); + size_t n, nCount = m_aEntries.Count(); for ( n = 0; n < nCount; n++ ) delete m_aEntries[n]; @@ -665,17 +823,52 @@ void wxFileConfig::ConfigGroup::SetLine(LineList *pLine) m_pLine = pLine; } -// return the line which contains "[our name]" +/* + This is a bit complicated, so let me explain it in details. All lines that + were read from the local file (the only one we will ever modify) are stored + in a (doubly) linked list. Our problem is to know at which position in this + list should we insert the new entries/subgroups. To solve it we keep three + variables for each group: m_pLine, m_pLastEntry and m_pLastGroup. + + m_pLine points to the line containing "[group_name]" + m_pLastEntry points to the last entry of this group in the local file. + m_pLastGroup subgroup + + Initially, they're NULL all three. When the group (an entry/subgroup) is read + from the local file, the corresponding variable is set. However, if the group + was read from the global file and then modified or created by the application + these variables are still NULL and we need to create the corresponding lines. + See the following functions (and comments preceding them) for the details of + how we do it. + + Also, when our last entry/group are deleted we need to find the new last + element - the code in DeleteEntry/Subgroup does this by backtracking the list + of lines until it either founds an entry/subgroup (and this is the new last + element) or the m_pLine of the group, in which case there are no more entries + (or subgroups) left and m_pLast becomes NULL. + + NB: This last problem could be avoided for entries if we added new entries + immediately after m_pLine, but in this case the entries would appear + backwards in the config file (OTOH, it's not that important) and as we + would still need to do it for the subgroups the code wouldn't have been + significantly less complicated. + */ + +// Return the line which contains "[our name]". If we're still not in the list, +// add our line to it immediately after the last line of our parent group if we +// have it or in the very beginning if we're the root group. wxFileConfig::LineList *wxFileConfig::ConfigGroup::GetGroupLine() { if ( m_pLine == NULL ) { + ConfigGroup *pParent = Parent(); + // this group wasn't present in local config file, add it now - if ( Parent() != NULL ) { + if ( pParent != NULL ) { wxString strFullName; - strFullName << "[" << GetFullName().c_str() + 1 << "]"; // +1: no '/' + strFullName << "[" << (GetFullName().c_str() + 1) << "]"; // +1: no '/' m_pLine = m_pConfig->LineListInsert(strFullName, - Parent()->GetLastGroupLine()); - Parent()->SetLastGroup(this); + pParent->GetLastGroupLine()); + pParent->SetLastGroup(this); // we're surely after all the others } else { // we return NULL, so that LineListInsert() will insert us in the @@ -686,25 +879,27 @@ wxFileConfig::LineList *wxFileConfig::ConfigGroup::GetGroupLine() return m_pLine; } -// return the last line belonging to the subgroups of this group -// (after which we can add a new subgroup) +// Return the last line belonging to the subgroups of this group (after which +// we can add a new subgroup), if we don't have any subgroups or entries our +// last line is the group line (m_pLine) itself. wxFileConfig::LineList *wxFileConfig::ConfigGroup::GetLastGroupLine() { // if we have any subgroups, our last line is the last line of the last // subgroup - if ( m_pLastGroup != NULL ) - return m_pLastGroup->GetLastGroupLine(); + if ( m_pLastGroup != NULL ) { + wxFileConfig::LineList *pLine = m_pLastGroup->GetLastGroupLine(); - // if we have any entries, our last line is the last entry - if ( m_pLastEntry != NULL ) - return m_pLastEntry->GetLine(); + wxASSERT( pLine != NULL ); // last group must have !NULL associated line + return pLine; + } - // nothing at all: last line is the first one - return GetGroupLine(); + // no subgroups, so the last line is the line of thelast entry (if any) + return GetLastEntryLine(); } -// return the last line belonging to the entries of this group -// (after which we can add a new entry) +// return the last line belonging to the entries of this group (after which +// we can add a new entry), if we don't have any entries we will add the new +// one immediately after the group line itself. wxFileConfig::LineList *wxFileConfig::ConfigGroup::GetLastEntryLine() { if ( m_pLastEntry != NULL ) { @@ -714,7 +909,7 @@ wxFileConfig::LineList *wxFileConfig::ConfigGroup::GetLastEntryLine() return pLine; } - // no entrues: insert after the group header + // no entries: insert after the group header return GetGroupLine(); } @@ -725,7 +920,7 @@ wxFileConfig::LineList *wxFileConfig::ConfigGroup::GetLastEntryLine() wxString wxFileConfig::ConfigGroup::GetFullName() const { if ( Parent() ) - return Parent()->GetFullName() + APPCONF_PATH_SEPARATOR + Name(); + return Parent()->GetFullName() + wxCONFIG_PATH_SEPARATOR + Name(); else return ""; } @@ -734,13 +929,32 @@ wxString wxFileConfig::ConfigGroup::GetFullName() const // find an item // ---------------------------------------------------------------------------- +// use binary search because the array is sorted wxFileConfig::ConfigEntry * wxFileConfig::ConfigGroup::FindEntry(const char *szName) const { - uint nCount = m_aEntries.Count(); - for ( uint n = 0; n < nCount; n++ ) { - if ( m_aEntries[n]->Name().IsSameAs(szName, APPCONF_CASE_SENSITIVE) ) - return m_aEntries[n]; + size_t i, + lo = 0, + hi = m_aEntries.Count(); + int res; + wxFileConfig::ConfigEntry *pEntry; + + while ( lo < hi ) { + i = (lo + hi)/2; + pEntry = m_aEntries[i]; + + #if wxCONFIG_CASE_SENSITIVE + res = strcmp(pEntry->Name(), szName); + #else + res = Stricmp(pEntry->Name(), szName); + #endif + + if ( res > 0 ) + hi = i; + else if ( res < 0 ) + lo = i + 1; + else + return pEntry; } return NULL; @@ -749,10 +963,28 @@ wxFileConfig::ConfigGroup::FindEntry(const char *szName) const wxFileConfig::ConfigGroup * wxFileConfig::ConfigGroup::FindSubgroup(const char *szName) const { - uint nCount = m_aSubgroups.Count(); - for ( uint n = 0; n < nCount; n++ ) { - if ( m_aSubgroups[n]->Name().IsSameAs(szName, APPCONF_CASE_SENSITIVE) ) - return m_aSubgroups[n]; + size_t i, + lo = 0, + hi = m_aSubgroups.Count(); + int res; + wxFileConfig::ConfigGroup *pGroup; + + while ( lo < hi ) { + i = (lo + hi)/2; + pGroup = m_aSubgroups[i]; + + #if wxCONFIG_CASE_SENSITIVE + res = strcmp(pGroup->Name(), szName); + #else + res = Stricmp(pGroup->Name(), szName); + #endif + + if ( res > 0 ) + hi = i; + else if ( res < 0 ) + lo = i + 1; + else + return pGroup; } return NULL; @@ -790,56 +1022,132 @@ wxFileConfig::ConfigGroup::AddSubgroup(const wxString& strName) // delete an item // ---------------------------------------------------------------------------- -bool wxFileConfig::ConfigGroup::DeleteSubgroup(const char *szName) +/* + The delete operations are _very_ slow if we delete the last item of this + group (see comments before GetXXXLineXXX functions for more details), + so it's much better to start with the first entry/group if we want to + delete several of them. + */ + +bool wxFileConfig::ConfigGroup::DeleteSubgroupByName(const char *szName) { - uint n, nCount = m_aSubgroups.Count(); - for ( n = 0; n < nCount; n++ ) { - if ( m_aSubgroups[n]->Name().IsSameAs(szName, APPCONF_CASE_SENSITIVE) ) - break; - } + return DeleteSubgroup(FindSubgroup(szName)); +} - if ( n == nCount ) - return FALSE; +// doesn't delete the subgroup itself, but does remove references to it from +// all other data structures (and normally the returned pointer should be +// deleted a.s.a.p. because there is nothing much to be done with it anyhow) +bool wxFileConfig::ConfigGroup::DeleteSubgroup(ConfigGroup *pGroup) +{ + wxCHECK( pGroup != NULL, FALSE ); // deleting non existing group? - nCount = m_aEntries.Count(); - for ( n = 0; n < nCount; n++ ) { - LineList *pLine = m_aEntries[n]->GetLine(); + // delete all entries + size_t nCount = pGroup->m_aEntries.Count(); + for ( size_t nEntry = 0; nEntry < nCount; nEntry++ ) { + LineList *pLine = pGroup->m_aEntries[nEntry]->GetLine(); if ( pLine != NULL ) m_pConfig->LineListRemove(pLine); } - ConfigGroup *pGroup = m_aSubgroups[n]; + // and subgroups of this sungroup + nCount = pGroup->m_aSubgroups.Count(); + for ( size_t nGroup = 0; nGroup < nCount; nGroup++ ) { + pGroup->DeleteSubgroup(pGroup->m_aSubgroups[nGroup]); + } + LineList *pLine = pGroup->m_pLine; - if ( pLine != NULL ) + if ( pLine != NULL ) { + // notice that we may do this test inside the previous "if" because the + // last entry's line is surely !NULL + if ( pGroup == m_pLastGroup ) { + // our last entry is being deleted - find the last one which stays + wxASSERT( m_pLine != NULL ); // we have a subgroup with !NULL pLine... + + // go back until we find a subgroup or reach the group's line + ConfigGroup *pNewLast = NULL; + size_t n, nSubgroups = m_aSubgroups.Count(); + LineList *pl; + for ( pl = pLine->Prev(); pl != m_pLine; pl = pl->Prev() ) { + // is it our subgroup? + for ( n = 0; (pNewLast == NULL) && (n < nSubgroups); n++ ) { + // do _not_ call GetGroupLine! we don't want to add it to the local + // file if it's not already there + if ( m_aSubgroups[n]->m_pLine == m_pLine ) + pNewLast = m_aSubgroups[n]; + } + + if ( pNewLast != NULL ) // found? + break; + } + + if ( pl == m_pLine ) { + wxASSERT( !pNewLast ); // how comes it has the same line as we? + + // we've reached the group line without finding any subgroups + m_pLastGroup = NULL; + } + else + m_pLastGroup = pNewLast; + } + m_pConfig->LineListRemove(pLine); - delete pGroup; + } SetDirty(); - m_aSubgroups.Remove(n); + m_aSubgroups.Remove(pGroup); + delete pGroup; + return TRUE; } bool wxFileConfig::ConfigGroup::DeleteEntry(const char *szName) { - uint n, nCount = m_aEntries.Count(); - for ( n = 0; n < nCount; n++ ) { - if ( m_aEntries[n]->Name().IsSameAs(szName, APPCONF_CASE_SENSITIVE) ) - break; - } + ConfigEntry *pEntry = FindEntry(szName); + wxCHECK( pEntry != NULL, FALSE ); // deleting non existing item? - if ( n == nCount ) - return FALSE; - - ConfigEntry *pEntry = m_aEntries[n]; LineList *pLine = pEntry->GetLine(); - if ( pLine != NULL ) + if ( pLine != NULL ) { + // notice that we may do this test inside the previous "if" because the + // last entry's line is surely !NULL + if ( pEntry == m_pLastEntry ) { + // our last entry is being deleted - find the last one which stays + wxASSERT( m_pLine != NULL ); // if we have an entry with !NULL pLine... + + // go back until we find another entry or reach the group's line + ConfigEntry *pNewLast = NULL; + size_t n, nEntries = m_aEntries.Count(); + LineList *pl; + for ( pl = pLine->Prev(); pl != m_pLine; pl = pl->Prev() ) { + // is it our subgroup? + for ( n = 0; (pNewLast == NULL) && (n < nEntries); n++ ) { + if ( m_aEntries[n]->GetLine() == m_pLine ) + pNewLast = m_aEntries[n]; + } + + if ( pNewLast != NULL ) // found? + break; + } + + if ( pl == m_pLine ) { + wxASSERT( !pNewLast ); // how comes it has the same line as we? + + // we've reached the group line without finding any subgroups + m_pLastEntry = NULL; + } + else + m_pLastEntry = pNewLast; + } + m_pConfig->LineListRemove(pLine); - delete pEntry; + } + // we must be written back for the changes to be saved SetDirty(); - m_aEntries.Remove(n); + m_aEntries.Remove(pEntry); + delete pEntry; + return TRUE; } @@ -865,13 +1173,15 @@ wxFileConfig::ConfigEntry::ConfigEntry(wxFileConfig::ConfigGroup *pParent, int nLine) : m_strName(strName) { + wxASSERT( !strName.IsEmpty() ); + m_pParent = pParent; m_nLine = nLine; m_pLine = NULL; m_bDirty = FALSE; - m_bImmutable = strName[0] == APPCONF_IMMUTABLE_PREFIX; + m_bImmutable = strName[0] == wxCONFIG_IMMUTABLE_PREFIX; if ( m_bImmutable ) m_strName.erase(0, 1); // remove first character } @@ -883,7 +1193,7 @@ wxFileConfig::ConfigEntry::ConfigEntry(wxFileConfig::ConfigGroup *pParent, void wxFileConfig::ConfigEntry::SetLine(LineList *pLine) { if ( m_pLine != NULL ) { - wxLogWarning("Entry '%s' appears more than once in group '%s'", + wxLogWarning(_("entry '%s' appears more than once in group '%s'"), Name().c_str(), m_pParent->GetFullName().c_str()); } @@ -896,7 +1206,7 @@ void wxFileConfig::ConfigEntry::SetLine(LineList *pLine) void wxFileConfig::ConfigEntry::SetValue(const wxString& strValue, bool bUser) { if ( bUser && IsImmutable() ) { - wxLogWarning("Attempt to change immutable key '%s' ignored.", + wxLogWarning(_("attempt to change immutable key '%s' ignored."), Name().c_str()); return; } @@ -939,20 +1249,53 @@ void wxFileConfig::ConfigEntry::SetDirty() // global functions // ============================================================================ +// ---------------------------------------------------------------------------- +// compare functions for array sorting +// ---------------------------------------------------------------------------- + +int CompareEntries(wxFileConfig::ConfigEntry *p1, + wxFileConfig::ConfigEntry *p2) +{ + #if wxCONFIG_CASE_SENSITIVE + return strcmp(p1->Name(), p2->Name()); + #else + return Stricmp(p1->Name(), p2->Name()); + #endif +} + +int CompareGroups(wxFileConfig::ConfigGroup *p1, + wxFileConfig::ConfigGroup *p2) +{ + #if wxCONFIG_CASE_SENSITIVE + return strcmp(p1->Name(), p2->Name()); + #else + return Stricmp(p1->Name(), p2->Name()); + #endif +} + +// ---------------------------------------------------------------------------- +// filter functions +// ---------------------------------------------------------------------------- + // undo FilterOut wxString FilterIn(const wxString& str) { wxString strResult; + strResult.Alloc(str.Len()); bool bQuoted = !str.IsEmpty() && str[0] == '"'; - for ( uint n = bQuoted ? 1 : 0; n < str.Len(); n++ ) { + for ( size_t n = bQuoted ? 1 : 0; n < str.Len(); n++ ) { if ( str[n] == '\\' ) { switch ( str[++n] ) { case 'n': strResult += '\n'; break; + case 'r': + strResult += '\r'; + break; + case 't': strResult += '\t'; break; @@ -969,8 +1312,10 @@ wxString FilterIn(const wxString& str) else { if ( str[n] != '"' || !bQuoted ) strResult += str[n]; - else if ( n != str.Len() - 1 ) - wxLogWarning("unexpected \" at position %d in '%s'.", n, str.c_str()); + else if ( n != str.Len() - 1 ) { + wxLogWarning(_("unexpected \" at position %d in '%s'."), + n, str.c_str()); + } //else: it's the last quote of a quoted string, ok } } @@ -981,7 +1326,11 @@ wxString FilterIn(const wxString& str) // quote the string before writing it to file wxString FilterOut(const wxString& str) { + if(str.IsEmpty()) + return str; + wxString strResult; + strResult.Alloc(str.Len()); // quoting is necessary to preserve spaces in the beginning of the string bool bQuote = isspace(str[0]) || str[0] == '"'; @@ -990,12 +1339,16 @@ wxString FilterOut(const wxString& str) strResult += '"'; char c; - for ( uint n = 0; n < str.Len(); n++ ) { + for ( size_t n = 0; n < str.Len(); n++ ) { switch ( str[n] ) { case '\n': c = 'n'; break; + case '\r': + c = 'r'; + break; + case '\t': c = 't'; break; @@ -1005,8 +1358,10 @@ wxString FilterOut(const wxString& str) break; case '"': - if ( bQuote ) + if ( bQuote ) { c = '"'; + break; + } //else: fall through default: