X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/894d74dcc233b7f9a936767558f3e061593dd062..761598d4e5b9f59bfc773e06f843c070d920f8b9:/src/common/fileconf.cpp

diff --git a/src/common/fileconf.cpp b/src/common/fileconf.cpp
index 2cfdd601b5..3a25662db7 100644
--- a/src/common/fileconf.cpp
+++ b/src/common/fileconf.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        fileconf.cpp
+// Name:        src/common/fileconf.cpp
 // Purpose:     implementation of wxFileConfig derivation of wxConfig
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -10,10 +10,6 @@
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "fileconf.h"
-#endif
-
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
@@ -275,7 +271,7 @@ wxString wxFileConfig::GetGlobalDir()
     strDir = wxMacFindFolder(  (short) kOnSystemDisk, kPreferencesFolderType, kDontCreateFolder ) ;
 #elif defined( __UNIX__ )
     strDir = wxT("/etc/");
-#elif defined(__WXPM__)
+#elif defined(__OS2__)
     ULONG aulSysInfo[QSV_MAX] = {0};
     UINT drive;
     APIRET rc;
@@ -291,7 +287,7 @@ wxString wxFileConfig::GetGlobalDir()
 #elif defined(__DOS__)
     // There's no such thing as global cfg dir in MS-DOS, let's return
     // current directory (FIXME_MGL?)
-    return wxT(".\\");
+    strDir = wxT(".\\");
 #elif defined(__WXWINCE__)
     strDir = wxT("\\Windows\\");
 #else // Windows
@@ -454,16 +450,16 @@ wxFileConfig::wxFileConfig(const wxString& appName, const wxString& vendorName,
     {
         if ( !m_strLocalFile.empty() && !wxIsAbsolutePath(m_strLocalFile) )
         {
-            wxString strLocal = m_strLocalFile;
+            const wxString strLocalOrig = m_strLocalFile;
             m_strLocalFile = GetLocalDir();
-            m_strLocalFile << strLocal;
+            m_strLocalFile << strLocalOrig;
         }
 
         if ( !m_strGlobalFile.empty() && !wxIsAbsolutePath(m_strGlobalFile) )
         {
-            wxString strGlobal = m_strGlobalFile;
+            const wxString strGlobalOrig = m_strGlobalFile;
             m_strGlobalFile = GetGlobalDir();
-            m_strGlobalFile << strGlobal;
+            m_strGlobalFile << strGlobalOrig;
         }
     }
 
@@ -495,7 +491,7 @@ wxFileConfig::wxFileConfig(wxInputStream &inStream, wxMBConv& conv)
         char buf[1024];
         do
         {
-            inStream.Read(buf, WXSIZEOF(buf));
+            inStream.Read(buf, WXSIZEOF(buf)-1);  // leave room for the NULL
 
             const wxStreamError err = inStream.GetLastError();
 
@@ -555,28 +551,28 @@ wxFileConfig::wxFileConfig(wxInputStream &inStream, wxMBConv& conv)
 
 void wxFileConfig::CleanUp()
 {
-  delete m_pRootGroup;
+    delete m_pRootGroup;
 
-  wxFileConfigLineList *pCur = m_linesHead;
-  while ( pCur != NULL ) {
-    wxFileConfigLineList *pNext = pCur->Next();
-    delete pCur;
-    pCur = pNext;
-  }
+    wxFileConfigLineList *pCur = m_linesHead;
+    while ( pCur != NULL ) {
+        wxFileConfigLineList *pNext = pCur->Next();
+        delete pCur;
+        pCur = pNext;
+    }
 }
 
 wxFileConfig::~wxFileConfig()
 {
-  Flush();
+    Flush();
 
-  CleanUp();
+    CleanUp();
 }
 
 // ----------------------------------------------------------------------------
 // parse a config file
 // ----------------------------------------------------------------------------
 
-void wxFileConfig::Parse(wxTextBuffer& buffer, bool bLocal)
+void wxFileConfig::Parse(const wxTextBuffer& buffer, bool bLocal)
 {
   const wxChar *pStart;
   const wxChar *pEnd;
@@ -668,7 +664,7 @@ void wxFileConfig::Parse(wxTextBuffer& buffer, bool bLocal)
       }
     }
     else {                        // a key
-      const wxChar *pEnd = pStart;
+      pEnd = pStart;
       while ( *pEnd && *pEnd != wxT('=') /* && !wxIsspace(*pEnd)*/ ) {
         if ( *pEnd == wxT('\\') ) {
           // next character may be space or not - still take it because it's
@@ -742,45 +738,59 @@ void wxFileConfig::Parse(wxTextBuffer& buffer, bool bLocal)
 
 void wxFileConfig::SetRootPath()
 {
-  m_strPath.Empty();
-  m_pCurrentGroup = m_pRootGroup;
+    m_strPath.Empty();
+    m_pCurrentGroup = m_pRootGroup;
 }
 
-void wxFileConfig::SetPath(const wxString& strPath)
+bool
+wxFileConfig::DoSetPath(const wxString& strPath, bool createMissingComponents)
 {
-  wxArrayString aParts;
+    wxArrayString aParts;
 
-  if ( strPath.empty() ) {
-    SetRootPath();
-    return;
-  }
+    if ( strPath.empty() ) {
+        SetRootPath();
+        return true;
+    }
 
-  if ( strPath[0] == wxCONFIG_PATH_SEPARATOR ) {
-    // absolute path
-    wxSplitPath(aParts, strPath);
-  }
-  else {
-    // relative path, combine with current one
-    wxString strFullPath = m_strPath;
-    strFullPath << wxCONFIG_PATH_SEPARATOR << strPath;
-    wxSplitPath(aParts, strFullPath);
-  }
+    if ( strPath[0] == wxCONFIG_PATH_SEPARATOR ) {
+        // absolute path
+        wxSplitPath(aParts, strPath);
+    }
+    else {
+        // relative path, combine with current one
+        wxString strFullPath = m_strPath;
+        strFullPath << wxCONFIG_PATH_SEPARATOR << strPath;
+        wxSplitPath(aParts, strFullPath);
+    }
 
-  // change current group
-  size_t n;
-  m_pCurrentGroup = m_pRootGroup;
-  for ( n = 0; n < aParts.Count(); n++ ) {
-    wxFileConfigGroup *pNextGroup = m_pCurrentGroup->FindSubgroup(aParts[n]);
-    if ( pNextGroup == NULL )
-      pNextGroup = m_pCurrentGroup->AddSubgroup(aParts[n]);
-    m_pCurrentGroup = pNextGroup;
-  }
+    // change current group
+    size_t n;
+    m_pCurrentGroup = m_pRootGroup;
+    for ( n = 0; n < aParts.Count(); n++ ) {
+        wxFileConfigGroup *pNextGroup = m_pCurrentGroup->FindSubgroup(aParts[n]);
+        if ( pNextGroup == NULL )
+        {
+            if ( !createMissingComponents )
+                return false;
 
-  // recombine path parts in one variable
-  m_strPath.Empty();
-  for ( n = 0; n < aParts.Count(); n++ ) {
-    m_strPath << wxCONFIG_PATH_SEPARATOR << aParts[n];
-  }
+            pNextGroup = m_pCurrentGroup->AddSubgroup(aParts[n]);
+        }
+
+        m_pCurrentGroup = pNextGroup;
+    }
+
+    // recombine path parts in one variable
+    m_strPath.Empty();
+    for ( n = 0; n < aParts.Count(); n++ ) {
+        m_strPath << wxCONFIG_PATH_SEPARATOR << aParts[n];
+    }
+
+    return true;
+}
+
+void wxFileConfig::SetPath(const wxString& strPath)
+{
+    DoSetPath(strPath, true /* create missing path components */);
 }
 
 // ----------------------------------------------------------------------------
@@ -789,66 +799,66 @@ void wxFileConfig::SetPath(const wxString& strPath)
 
 bool wxFileConfig::GetFirstGroup(wxString& str, long& lIndex) const
 {
-  lIndex = 0;
-  return GetNextGroup(str, lIndex);
+    lIndex = 0;
+    return GetNextGroup(str, lIndex);
 }
 
 bool wxFileConfig::GetNextGroup (wxString& str, long& lIndex) const
 {
-  if ( size_t(lIndex) < m_pCurrentGroup->Groups().Count() ) {
-    str = m_pCurrentGroup->Groups()[(size_t)lIndex++]->Name();
-    return true;
-  }
-  else
-    return false;
+    if ( size_t(lIndex) < m_pCurrentGroup->Groups().Count() ) {
+        str = m_pCurrentGroup->Groups()[(size_t)lIndex++]->Name();
+        return true;
+    }
+    else
+        return false;
 }
 
 bool wxFileConfig::GetFirstEntry(wxString& str, long& lIndex) const
 {
-  lIndex = 0;
-  return GetNextEntry(str, lIndex);
+    lIndex = 0;
+    return GetNextEntry(str, lIndex);
 }
 
 bool wxFileConfig::GetNextEntry (wxString& str, long& lIndex) const
 {
-  if ( size_t(lIndex) < m_pCurrentGroup->Entries().Count() ) {
-    str = m_pCurrentGroup->Entries()[(size_t)lIndex++]->Name();
-    return true;
-  }
-  else
-    return false;
+    if ( size_t(lIndex) < m_pCurrentGroup->Entries().Count() ) {
+        str = m_pCurrentGroup->Entries()[(size_t)lIndex++]->Name();
+        return true;
+    }
+    else
+        return false;
 }
 
 size_t wxFileConfig::GetNumberOfEntries(bool bRecursive) const
 {
-  size_t n = m_pCurrentGroup->Entries().Count();
-  if ( bRecursive ) {
-    wxFileConfigGroup *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;
+    size_t n = m_pCurrentGroup->Entries().Count();
+    if ( bRecursive ) {
+        wxFileConfigGroup *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;
+    return n;
 }
 
 size_t wxFileConfig::GetNumberOfGroups(bool bRecursive) const
 {
-  size_t n = m_pCurrentGroup->Groups().Count();
-  if ( bRecursive ) {
-    wxFileConfigGroup *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;
+    size_t n = m_pCurrentGroup->Groups().Count();
+    if ( bRecursive ) {
+        wxFileConfigGroup *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;
+    return n;
 }
 
 // ----------------------------------------------------------------------------
@@ -857,18 +867,28 @@ size_t wxFileConfig::GetNumberOfGroups(bool bRecursive) const
 
 bool wxFileConfig::HasGroup(const wxString& strName) const
 {
-  wxConfigPathChanger path(this, strName);
+    // special case: DoSetPath("") does work as it's equivalent to DoSetPath("/")
+    // but there is no group with empty name so treat this separately
+    if ( strName.empty() )
+        return false;
+
+    const wxString pathOld = GetPath();
 
-  wxFileConfigGroup *pGroup = m_pCurrentGroup->FindSubgroup(path.Name());
-  return pGroup != NULL;
+    wxFileConfig *self = wx_const_cast(wxFileConfig *, this);
+    const bool
+        rc = self->DoSetPath(strName, false /* don't create missing components */);
+
+    self->SetPath(pathOld);
+
+    return rc;
 }
 
 bool wxFileConfig::HasEntry(const wxString& strName) const
 {
-  wxConfigPathChanger path(this, strName);
+    wxConfigPathChanger path(this, strName);
 
-  wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name());
-  return pEntry != NULL;
+    wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name());
+    return pEntry != NULL;
 }
 
 // ----------------------------------------------------------------------------
@@ -877,16 +897,16 @@ bool wxFileConfig::HasEntry(const wxString& strName) const
 
 bool wxFileConfig::DoReadString(const wxString& key, wxString* pStr) const
 {
-  wxConfigPathChanger path(this, key);
+    wxConfigPathChanger path(this, key);
 
-  wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name());
-  if (pEntry == NULL) {
-    return false;
-  }
+    wxFileConfigEntry *pEntry = m_pCurrentGroup->FindEntry(path.Name());
+    if (pEntry == NULL) {
+        return false;
+    }
 
-  *pStr = pEntry->Value();
+    *pStr = pEntry->Value();
 
-  return true;
+    return true;
 }
 
 bool wxFileConfig::DoReadLong(const wxString& key, long *pl) const
@@ -1098,12 +1118,13 @@ bool wxFileConfig::DeleteEntry(const wxString& key, bool bGroupIfEmptyAlso)
   if ( !m_pCurrentGroup->DeleteEntry(path.Name()) )
     return false;
 
+  SetDirty();
+
   if ( bGroupIfEmptyAlso && m_pCurrentGroup->IsEmpty() ) {
     if ( m_pCurrentGroup != m_pRootGroup ) {
       wxFileConfigGroup *pGroup = m_pCurrentGroup;
       SetPath(wxT(".."));  // changes m_pCurrentGroup!
-      if ( m_pCurrentGroup->DeleteSubgroupByName(pGroup->Name()) )
-          SetDirty();
+      m_pCurrentGroup->DeleteSubgroupByName(pGroup->Name());
     }
     //else: never delete the root group
   }
@@ -1326,8 +1347,11 @@ wxFileConfigGroup::~wxFileConfigGroup()
 
 void wxFileConfigGroup::SetLine(wxFileConfigLineList *pLine)
 {
-    // shouldn't be called twice unless we are resetting the line
-    wxASSERT( m_pLine == 0 || pLine == 0 );
+    // for a normal (i.e. not root) group this method shouldn't be called twice
+    // unless we are resetting the line
+    wxASSERT_MSG( !m_pParent || !m_pLine || !pLine,
+                   _T("changing line for a non-root group?") );
+
     m_pLine = pLine;
 }
 
@@ -1851,20 +1875,11 @@ void wxFileConfigEntry::SetValue(const wxString& strValue, bool bUser)
         }
         else // this entry didn't exist in the local file
         {
-            // add a new line to the file: note the hack for the root group
-            // which is special in that it doesn't have its own group line
-            // (something like "[/]") and so the line we get for it may be not
-            // its line at all if it doesn't have any entries
-            //
-            // this is definitely not the right place to fix it but changing
-            // the root group to have NULL m_pLine will probably break too
-            // much stuff elsewhere so I don't dare to do it...
+            // add a new line to the file: note that line returned by
+            // GetLastEntryLine() may be NULL if we're in the root group and it
+            // doesn't have any entries yet, but this is ok as passing NULL
+            // line to LineListInsert() means to prepend new line to the list
             wxFileConfigLineList *line = Group()->GetLastEntryLine();
-            if ( !Group()->Parent() && line == Group()->GetGroupLine() )
-            {
-                // prepend the first root group entry to the head of the list
-                line = NULL;
-            }
             m_pLine = Group()->Config()->LineListInsert(strLine, line);
 
             Group()->SetLastEntry(this);
@@ -2061,4 +2076,3 @@ static wxString GetAppName(const wxString& appName)
 }
 
 #endif // wxUSE_CONFIG
-