1 files changed, 213 insertions, 108 deletions

diff --git a/qmake/tools/qsettings.cpp b/qmake/tools/qsettings.cpp
index 5de105c..35fc039 100644
--- a/qmake/tools/qsettings.cpp
+++ b/qmake/tools/qsettings.cpp
@@ -1,30 +1,30 @@
 /****************************************************************************
 ** $Id$
 **
 ** Implementation of QSettings class
 **
-** Created: 2000.06.26
+** Created : 000626
 **
 ** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
 **
 ** This file is part of the tools module of the Qt GUI Toolkit.
 **
 ** This file may be distributed under the terms of the Q Public License
 ** as defined by Trolltech AS of Norway and appearing in the file
 ** LICENSE.QPL included in the packaging of this file.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
 ** licenses may use this file in accordance with the Qt Commercial License
 ** Agreement provided with the Software.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
 **   information about Qt Commercial License Agreements.
 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
@@ -50,130 +50,159 @@ static inline int qt_open( const char *pathname, int flags, mode_t mode )
 #endif
 
 #include "qsettings.h"
 
 #ifndef QT_NO_SETTINGS
 
 #include "qdir.h"
 #include "qfile.h"
 #include "qfileinfo.h"
 #include "qmap.h"
 #include "qtextstream.h"
 #include "qregexp.h"
 #include <private/qsettings_p.h>
 #include <errno.h>
 
 /*!
   \class QSettings
   \brief The QSettings class provides persistent platform-independent application settings.
 
   \ingroup io
   \ingroup misc
   \mainclass
 
   On Unix systems, QSettings uses text files to store settings. On Windows
-  systems, QSettings uses the system registry.  On Mac OS X, QSettings will
-  behave as on Unix, and store to text files.
+    systems, QSettings uses the system registry.  On Mac OS X, QSettings uses
+    the Carbon preferences API.
 
   Each setting comprises an identifying key and the data associated with
   the key. A key is a unicode string which consists of \e two or more
   subkeys. A subkey is a slash, '/', followed by one or more unicode
   characters (excluding slashes, newlines, carriage returns and equals,
   '=', signs). The associated data, called the entry or value, may be a
   boolean, an integer, a double, a string or a list of strings. Entry
   strings may contain any unicode characters.
 
   If you want to save and restore the entire desktop's settings, i.e.
   which applications are running, use QSettings to save the settings
   for each individual application and QSessionManager to save the
   desktop's session.
 
     Example settings:
     \code
     /MyCompany/MyApplication/background color
     /MyCompany/MyApplication/foreground color
     /MyCompany/MyApplication/geometry/x
     /MyCompany/MyApplication/geometry/y
     /MyCompany/MyApplication/geometry/width
     /MyCompany/MyApplication/geometry/height
     /MyCompany/MyApplication/recent files/1
     /MyCompany/MyApplication/recent files/2
     /MyCompany/MyApplication/recent files/3
     \endcode
     Each line above is a complete key, made up of subkeys.
 
-    A typical usage pattern for application startup:
+    A typical usage pattern for reading application startup:
     \code
     QSettings settings;
-    settings.insertSearchPath( QSettings::Windows, "/MyCompany" );
-    // No search path needed for Unix; see notes further on.
-    // Use default values if the keys don't exist
-    QString bgColor = settings.readEntry( "/MyApplication/background color", "white" );
-    int width = settings.readNumEntry( "/MyApplication/geometry/width", 640 );
+    settings.setPath( "MyCompany.com", "MyApplication" );
+
+    QString bgColor = settings.readEntry( "/colors/background", "white" );
+    int width = settings.readNumEntry( "/geometry/width", 640 );
     // ...
     \endcode
 
     A typical usage pattern for application exit or 'save preferences':
     \code
     QSettings settings;
-    settings.insertSearchPath( QSettings::Windows, "/MyCompany" );
-    // No search path needed for Unix; see notes further on.
-    settings.writeEntry( "/MyApplication/background color", bgColor );
-    settings.writeEntry( "/MyApplication/geometry/width", width );
+    settings.setPath( "MyCompany.com", "MyApplication" );
+
+    settings.writeEntry( "/colors/background", bgColor );
+    settings.writeEntry( "/geometry/width", width );
+    // ...
+    \endcode
+
+    QSettings can build a key prefix that is prepended to all keys. To
+    build the key prefix, use beginGroup() and endGroup().
+    \code
+    QSettings settings;
+
+    settings.beginGroup( "/MainWindow" );
+        settings.beginGroup( "/Geometry" );
+            int x = settings.readEntry( "/x" );
+            // ...
+        settings.endGroup();
+        settings.beginGroup( "/Toolbars" );
     // ...
+        settings.endGroup();
+    settings.endGroup();
     \endcode
 
     You can get a list of entry-holding keys by calling entryList(), and
     a list of key-holding keys using subkeyList().
 
     \code
     QStringList keys = entryList( "/MyApplication" );
     // keys contains 'background color' and 'foreground color'.
 
     QStringList keys = entryList( "/MyApplication/recent files" );
     // keys contains '1', '2' and '3'.
 
     QStringList subkeys = subkeyList( "/MyApplication" );
     // subkeys contains 'geometry' and 'recent files'
 
     QStringList subkeys = subkeyList( "/MyApplication/recent files" );
     // subkeys is empty.
     \endcode
 
-    If you wish to use a different search path call insertSearchPath()
-    as often as necessary to add your preferred paths. Call
-    removeSearchPath() to remove any unwanted paths.
-
     Since settings for Windows are stored in the registry there are size
     limits as follows:
     \list
     \i A subkey may not exceed 255 characters.
     \i An entry's value may not exceed 16,300 characters.
     \i All the values of a key (for example, all the 'recent files'
     subkeys values), may not exceed 65,535 characters.
     \endlist
 
-    These limitations are not enforced on Unix.
+    These limitations are not enforced on Unix or Mac OS X.
+
+    If you wish to use a different search path call insertSearchPath()
+    as often as necessary to add your preferred paths. Call
+    removeSearchPath() to remove any unwanted paths.
+
+    \section1 Notes for Mac OS X Applications
+
+    Internal to the CFPreferences API it is not defined (for Mac OS 9
+    support) where the settings will ultimitely be stored. However, at the
+    time of this writing the settings will be stored (either on a global or
+    user basis, preferring locally) into a plist file in
+    $ROOT/System/Library/Preferences (in XML format). QSettings will create
+    an appropriate plist file (com.<first group name>.plist) out of the
+    full path to a key.
+
+    For further information on CFPreferences see also
+    \link http://developer.apple.com/techpubs/macosx/CoreFoundation/PreferenceServices/preferenceservices_carbon.html
+    Apple's Specifications\endlink
 
     \section1 Notes for Unix Applications
 
     There is no universally accepted place for storing application
     settings under Unix. In the examples the settings file will be
     searched for in the following directories:
     \list 1
     \i INSTALL/etc/settings
     \i /opt/MyCompany/share/etc
     \i /opt/MyCompany/share/MyApplication/etc
     \i $HOME/.qt
     \endlist
     When reading settings the files are searched in the order shown
     above, with later settings overriding earlier settings. Files for
     which the user doesn't have read permission are ignored. When saving
     settings QSettings works in the order shown above, writing
     to the first settings file for which the user has write permission.
     (\c INSTALL is the directory where Qt was installed.  This can be
     modified by using the configure script's -prefix argument )
 
     If you want to put the settings in a particular place in the
     filesystem you could do this:
     \code
     settings.insertSearchPath( QSettings::Unix, "/opt/MyCompany/share" );
@@ -279,62 +308,62 @@ static void closelock( HANDLE fd )
     // ignore the return value, so that the unlock fails silently
     (void) fcntl( fd, F_SETLKW, &fl );
 
     close( fd );
 }
 #elif defined(Q_WS_WIN)
 #define Q_LOCKREAD 1
 #define Q_LOCKWRITE 2
 
 static HANDLE openlock( const QString &name, int /*type*/ )
 {
     if ( !QFile::exists( name ) )
         return 0;
 
     return 0;
 
     HANDLE fd = 0;
 
     QT_WA( {
         fd = CreateFileW( (TCHAR*)name.ucs2(), GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
     } , {
         fd = CreateFileA( name.local8Bit(), GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
     } );
 
-    if ( !LockFile( fd, 0, 0, -1, -1 ) ) {
+    if ( !LockFile( fd, 0, 0, (DWORD)-1, (DWORD)-1 ) ) { // ### (DWORD)-1 ???
 #ifdef QT_CHECK_STATE
         qWarning( "QSettings: openlock failed!" );
 #endif
     }
     return fd;
 }
 
-void closelock( HANDLE fd )
+static void closelock( HANDLE fd )
 {
     if ( !fd )
         return;
 
-    if ( !UnlockFile( fd, 0, 0, -1, -1 ) ) {
+    if ( !UnlockFile( fd, 0, 0, (DWORD)-1, (DWORD)-1 ) ) { // ### (DWORD)-1 ???
 #ifdef QT_CHECK_STATE
         qWarning( "QSettings: closelock failed!");
 #endif
     }
     CloseHandle( fd );
 }
 #endif
 
 
 QSettingsGroup::QSettingsGroup()
     : modified(FALSE)
 {
 }
 
 
 
 
 void QSettingsHeading::read(const QString &filename)
 {
     if (! QFileInfo(filename).exists())
         return;
 
     HANDLE lockfd = openlock( filename, Q_LOCKREAD );
 
@@ -434,157 +463,165 @@ void QSettingsHeading::parseLine(QTextStream &stream)
                 }
             }
 
             (*git).insert(key, value);
         }
     }
 }
 
 #ifdef Q_WS_WIN // for homedirpath reading from registry
 #include "qt_windows.h"
 #include "qlibrary.h"
 
 #ifndef CSIDL_APPDATA
 #define CSIDL_APPDATA                   0x001a        // <user name>\Application Data
 #endif
 #ifndef CSIDL_COMMON_APPDATA
 #define CSIDL_COMMON_APPDATA            0x0023        // All Users\Application Data
 #endif
 
 #endif
 
 QSettingsPrivate::QSettingsPrivate( QSettings::Format format )
     : groupDirty( TRUE ), modified(FALSE), globalScope(TRUE)
 {
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( format != QSettings::Ini )
         return;
+#else
+    Q_UNUSED( format );
 #endif
 
     QString appSettings(QDir::homeDirPath() + "/.qt/");
     QString defPath;
 #ifdef Q_WS_WIN
 #ifdef Q_OS_TEMP
         TCHAR path[MAX_PATH];
         SHGetSpecialFolderPath( 0, path, CSIDL_APPDATA, FALSE );
         appSettings  = QString::fromUcs2( path );
         SHGetSpecialFolderPath( 0, path, CSIDL_COMMON_APPDATA, FALSE );
         defPath = QString::fromUcs2( path );
 #else
     QLibrary library( "shell32" );
     library.setAutoUnload( FALSE );
     QT_WA( {
         typedef BOOL (WINAPI*GetSpecialFolderPath)(HWND, LPTSTR, int, BOOL);
         GetSpecialFolderPath SHGetSpecialFolderPath = (GetSpecialFolderPath)library.resolve( "SHGetSpecialFolderPathW" );
         if ( SHGetSpecialFolderPath ) {
             TCHAR path[MAX_PATH];
             SHGetSpecialFolderPath( 0, path, CSIDL_APPDATA, FALSE );
             appSettings  = QString::fromUcs2( (ushort*)path );
             SHGetSpecialFolderPath( 0, path, CSIDL_COMMON_APPDATA, FALSE );
             defPath = QString::fromUcs2( (ushort*)path );
         }
     } , {
         typedef BOOL (WINAPI*GetSpecialFolderPath)(HWND, char*, int, BOOL);
         GetSpecialFolderPath SHGetSpecialFolderPath = (GetSpecialFolderPath)library.resolve( "SHGetSpecialFolderPathA" );
         if ( SHGetSpecialFolderPath ) {
             char path[MAX_PATH];
             SHGetSpecialFolderPath( 0, path, CSIDL_APPDATA, FALSE );
             appSettings = QString::fromLocal8Bit( path );
             SHGetSpecialFolderPath( 0, path, CSIDL_COMMON_APPDATA, FALSE );
             defPath = QString::fromLocal8Bit( path );
         }
     } );
 #endif // Q_OS_TEMP
 #else
 // for now
 #define QSETTINGS_DEFAULT_PATH_SUFFIX "/etc/settings"
 
     defPath = qInstallPath();
     defPath += QSETTINGS_DEFAULT_PATH_SUFFIX;
 #endif
     QDir dir(appSettings);
     if (! dir.exists()) {
         if (! dir.mkdir(dir.path()))
 #if defined(QT_CHECK_STATE)
             qWarning("QSettings: error creating %s", dir.path().latin1());
+#else
+            ;
 #endif
     }
 
     if ( !!defPath )
         searchPaths.append(defPath);
     searchPaths.append(dir.path());
 }
 
 QSettingsPrivate::~QSettingsPrivate()
 {
 }
 
 QSettingsGroup QSettingsPrivate::readGroup()
 {
     QSettingsHeading hd;
     QSettingsGroup grp;
 
     QMap<QString,QSettingsHeading>::Iterator headingsit = headings.find(heading);
     if (headingsit != headings.end())
         hd = *headingsit;
 
     QSettingsHeading::Iterator grpit = hd.find(group);
     if (grpit == hd.end()) {
         QStringList::Iterator it = searchPaths.begin();
+        if ( !globalScope )
+            ++it;
         while (it != searchPaths.end()) {
             QString filebase = heading.lower().replace(QRegExp("\\s+"), "_");
             QString fn((*it++) + "/" + filebase + "rc");
             if (! hd.contains(fn + "cached")) {
                 hd.read(fn);
                 hd.insert(fn + "cached", QSettingsGroup());
             }
         }
 
         headings.replace(heading, hd);
 
         grpit = hd.find(group);
         if (grpit != hd.end())
             grp = *grpit;
     } else if (hd.count() != 0)
         grp = *grpit;
 
     return grp;
 }
 
 
 void QSettingsPrivate::removeGroup(const QString &key)
 {
     QSettingsHeading hd;
     QSettingsGroup grp;
     bool found = FALSE;
 
     QMap<QString,QSettingsHeading>::Iterator headingsit = headings.find(heading);
     if (headingsit != headings.end())
         hd = *headingsit;
 
     QSettingsHeading::Iterator grpit = hd.find(group);
     if (grpit == hd.end()) {
         QStringList::Iterator it = searchPaths.begin();
+        if ( !globalScope )
+            ++it;
         while (it != searchPaths.end()) {
             QString filebase = heading.lower().replace(QRegExp("\\s+"), "_");
             QString fn((*it++) + "/" + filebase + "rc");
             if (! hd.contains(fn + "cached")) {
                 hd.read(fn);
                 hd.insert(fn + "cached", QSettingsGroup());
             }
         }
 
         headings.replace(heading, hd);
 
         grpit = hd.find(group);
         if (grpit != hd.end()) {
             found = TRUE;
             grp = *grpit;
         }
     } else if (hd.count() != 0) {
         found = TRUE;
         grp = *grpit;
     }
 
     if (found) {
         grp.remove(key);
 
@@ -594,102 +631,112 @@ void QSettingsPrivate::removeGroup(const QString &key)
             hd.remove(group);
 
         if (hd.count() > 0)
             headings.replace(heading, hd);
         else
             headings.remove(heading);
 
         modified = TRUE;
     }
 }
 
 
 void QSettingsPrivate::writeGroup(const QString &key, const QString &value)
 {
     QSettingsHeading hd;
     QSettingsGroup grp;
 
     QMap<QString,QSettingsHeading>::Iterator headingsit = headings.find(heading);
     if (headingsit != headings.end())
         hd = *headingsit;
 
     QSettingsHeading::Iterator grpit = hd.find(group);
     if (grpit == hd.end()) {
         QStringList::Iterator it = searchPaths.begin();
+        if ( !globalScope )
+            ++it;
         while (it != searchPaths.end()) {
             QString filebase = heading.lower().replace(QRegExp("\\s+"), "_");
             QString fn((*it++) + "/" + filebase + "rc");
             if (! hd.contains(fn + "cached")) {
                 hd.read(fn);
                 hd.insert(fn + "cached", QSettingsGroup());
             }
         }
 
         headings.replace(heading, hd);
 
         grpit = hd.find(group);
         if (grpit != hd.end())
             grp = *grpit;
     } else if (hd.count() != 0)
         grp = *grpit;
 
     grp.modified = TRUE;
     grp.replace(key, value);
     hd.replace(group, grp);
     headings.replace(heading, hd);
 
     modified = TRUE;
 }
 
 
 QDateTime QSettingsPrivate::modificationTime()
 {
     QSettingsHeading hd = headings[heading];
     QSettingsGroup grp = hd[group];
 
     QDateTime datetime;
 
     QStringList::Iterator it = searchPaths.begin();
+    if ( !globalScope )
+        ++it;
     while (it != searchPaths.end()) {
         QFileInfo fi((*it++) + "/" + heading + "rc");
         if (fi.exists() && fi.lastModified() > datetime)
             datetime = fi.lastModified();
     }
 
     return datetime;
 }
 
-static bool verifyKey( const QString &key )
+bool qt_verify_key( const QString &key )
 {
     if ( key.isEmpty() || key[0] != '/' || key.contains( QRegExp("[=\\\\r\\\\n" ) ) )
         return FALSE;
     return TRUE;
 }
 
 static inline QString groupKey( const QString &group, const QString &key )
 {
-    if ( group.endsWith( "/" ) || key.startsWith( "/" ) )
+    if ( group.isEmpty() || ( group.length() == 1 && group[0] == '/' ) ) {
+        // group is empty, or it contains a single '/', so we just return the key
+        if ( key.startsWith( "/" ) )
+            return key;
+        return "/" + key;
+    } else if ( group.endsWith( "/" ) || key.startsWith( "/" ) ) {
         return group + key;
+    }
     return group + "/" + key;
 }
 
 /*!
   Inserts \a path into the settings search path. The semantics of \a
   path depends on the system \a s.
 
   When \a s is \e Windows and the execution environment is \e not
   Windows the function does nothing. Similarly when \a s is \e Unix and
   the execution environment is \e not Unix the function does nothing.
 
   When \a s is \e Windows, and the execution environment is Windows, the
   search path list will be used as the first subfolder of the "Software"
   folder in the registry.
 
   When reading settings the folders are searched forwards from the
   first folder (listed below) to the last, returning the first
   settings found, and ignoring any folders for which the user doesn't 
   have read permission.
   \list 1
   \i HKEY_CURRENT_USER/Software/MyCompany/MyApplication
   \i HKEY_LOCAL_MACHINE/Software/MyCompany/MyApplication
   \i HKEY_CURRENT_USER/Software/MyApplication
   \i HKEY_LOCAL_MACHINE/Software/MyApplication
@@ -736,655 +783,662 @@ static inline QString groupKey( const QString &group, const QString &key )
   \i INSTALL/etc
   \i /opt/MyCompany/share/etc
   \i /opt/MyCompany/share/MyApplication/etc
   \i $HOME/.qt
   \endlist
     When reading settings the files are searched in the order shown
     above, with later settings overriding earlier settings. Files for
     which the user doesn't have read permission are ignored. When saving
     settings QSettings works in the order shown above, writing
     to the first settings file for which the user has write permission.
 
   Settings under Unix are stored in files whose names are based on the
   first subkey of the key (not including the search path). The algorithm
   for creating names is essentially: lowercase the first subkey, replace
   spaces with underscores and add 'rc', e.g.
   <tt>/MyCompany/MyApplication/background color</tt> will be stored in
   <tt>myapplicationrc</tt> (assuming that <tt>/MyCompany</tt> is part of
   the search path).
 
   \sa removeSearchPath()
 
 */
 void QSettings::insertSearchPath( System s, const QString &path)
 {
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd ) {
         d->sysInsertSearchPath( s, path );
         return;
     }
 #endif
 
-    if ( !verifyKey( path ) ) {
+#if !defined(Q_WS_WIN)
+    if ( s == Windows )
+        return;
+#endif
+#if !defined(Q_WS_WIN)
+    if ( s == Mac )
+        return;
+#endif
+
+    if ( !qt_verify_key( path ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::insertSearchPath: Invalid key: '%s'", path.isNull() ? "(null)" : path.latin1() );
 #endif
         return;
     }
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd && s != Unix ) {
 #else
     if ( s != Unix ) {
 #endif
-#ifdef Q_OS_MAC
+#if !defined(QWS) && defined(Q_OS_MAC)
         if(s != Mac) //mac is respected on the mac as well
 #endif
             return;
     }
 
+    QString realPath = path;
+#if defined(Q_WS_WIN)
+    QString defPath = d->globalScope ? d->searchPaths.first() : d->searchPaths.last();
+    realPath = defPath + path;
+#endif
+
     QStringList::Iterator it = d->searchPaths.find(d->searchPaths.last());
     if (it != d->searchPaths.end()) {
-        d->searchPaths.insert(it, path);
+        d->searchPaths.insert(it, realPath);
     }
 }
 
 
 /*!
   Removes all occurrences of \a path (using exact matching) from the
   settings search path for system \a s. Note that the default search
   paths cannot be removed.
 
   \sa insertSearchPath()
 */
 void QSettings::removeSearchPath( System s, const QString &path)
 {
-    if ( !verifyKey( path ) ) {
+    if ( !qt_verify_key( path ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::insertSearchPath: Invalid key: '%s'", path.isNull() ? "(null)" : path.latin1() );
 #endif
         return;
     }
 
 #ifdef Q_WS_WIN
     if ( d->sysd ) {
         d->sysRemoveSearchPath( s, path );
         return;
     }
 #endif
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd && s != Unix ) {
 #else
     if ( s != Unix ) {
 #endif
-#ifdef Q_OS_MAC
+#if !defined(QWS) && defined(Q_OS_MAC)
         if(s != Mac) //mac is respected on the mac as well
 #endif
             return;
     }
 
     if (path == d->searchPaths.first() || path == d->searchPaths.last())
         return;
 
     d->searchPaths.remove(path);
 }
 
 
 /*!
   Creates a settings object.
 */
 QSettings::QSettings()
 {
     d = new QSettingsPrivate( Native );
     Q_CHECK_PTR(d);
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     d->sysd = 0;
     d->sysInit();
 #endif
 }
 
 /*!
   Creates a settings object. If \a format is 'Ini' the settings will
   be stored in a text file, using the Unix strategy (see above). If \a format
   is 'Native', the settings will be stored in a platform specific way
   (ie. the Windows registry).
 */
 QSettings::QSettings( Format format )
 {
     d = new QSettingsPrivate( format );
     Q_CHECK_PTR(d);
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     d->sysd = 0;
     if ( format == Native )
         d->sysInit();
 #else
     Q_UNUSED(format);
 #endif
 }
 
 /*!
   Destroys the settings object.  All modifications made to the settings
   will automatically be saved.
 
 */
 QSettings::~QSettings()
 {
     sync();
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
         d->sysClear();
 #endif
 
     delete d;
 }
 
 
 /*! \internal
   Writes all modifications to the settings to disk.  If any errors are
   encountered, this function returns FALSE, otherwise it will return TRUE.
 */
 bool QSettings::sync()
 {
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
         return d->sysSync();
 #endif
     if (! d->modified)
         // fake success
         return TRUE;
 
     bool success = TRUE;
     QMap<QString,QSettingsHeading>::Iterator it = d->headings.begin();
 
     while (it != d->headings.end()) {
         // determine filename
         QSettingsHeading hd(*it);
         QSettingsHeading::Iterator hdit = hd.begin();
         QFile file;
 
         QStringList::Iterator pit = d->searchPaths.begin();
+        if ( !d->globalScope )
+            ++pit;
         while (pit != d->searchPaths.end()) {
             QString filebase = it.key().lower().replace(QRegExp("\\s+"), "_");
             QFileInfo di(*pit);
             QFileInfo fi((*pit++) + "/" + filebase + "rc");
 
             if ((fi.exists() && fi.isFile() && fi.isWritable()) ||
                 (! fi.exists() && di.isDir() && di.isWritable())) {
                 file.setName(fi.filePath());
                 break;
             }
         }
 
-        it++;
+        ++it;
 
-        if (file.name().isNull() || file.name().isEmpty()) {
+        if ( file.name().isEmpty() ) {
 
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::sync: filename is null/empty");
 #endif // QT_CHECK_STATE
 
             success = FALSE;
             continue;
         }
 
         HANDLE lockfd = openlock( file.name(), Q_LOCKWRITE );
 
         if (! file.open(IO_WriteOnly)) {
 
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::sync: failed to open '%s' for writing",
                      file.name().latin1());
 #endif // QT_CHECK_STATE
 
             success = FALSE;
             continue;
         }
 
         // spew to file
         QTextStream stream(&file);
         stream.setEncoding(QTextStream::UnicodeUTF8);
 
         while (hdit != hd.end()) {
             if ((*hdit).count() > 0) {
                 stream << "[" << hdit.key() << "]" << endl;
 
                 QSettingsGroup grp(*hdit);
                 QSettingsGroup::Iterator grpit = grp.begin();
 
                 while (grpit != grp.end()) {
                     QString v = grpit.data();
                     if ( v.isNull() ) {
                         v = "\\0"; // escape null string
                     } else {
                         v.replace("\\", "\\\\"); // escape backslash
                         v.replace("\n", "\\n"); // escape newlines
                     }
 
                     stream << grpit.key() << "=" << v << endl;
-                    grpit++;
+                    ++grpit;
                 }
 
                 stream << endl;
             }
 
-            hdit++;
+            ++hdit;
         }
 
         if (file.status() != IO_Ok) {
 
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::sync: error at end of write");
 #endif // QT_CHECK_STATE
 
             success = FALSE;
         }
 
         file.close();
 
         closelock( lockfd );
     }
 
     d->modified = FALSE;
 
     return success;
 }
 
 
 /*!
   \fn bool QSettings::readBoolEntry(const QString &key, bool def, bool *ok ) const
 
   Reads the entry specified by \a key, and returns a bool, or the
   default value, \a def, if the entry couldn't be read.
   If \a ok is non-null, *ok is set to TRUE if the key was read, FALSE
   otherwise.
 
   \sa readEntry(), readNumEntry(), readDoubleEntry(), writeEntry(), removeEntry()
 */
 
 /*!
     \internal
 */
 bool QSettings::readBoolEntry(const QString &key, bool def, bool *ok )
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::readBoolEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
             if ( ok )
             *ok = FALSE;
 
         return def;
     }
 
-    QString theKey = groupKey( group(), key );
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
-        return d->sysReadBoolEntry( theKey, def, ok );
+        return d->sysReadBoolEntry( groupKey( group(), key ), def, ok );
 #endif
 
-    QString value = readEntry( theKey, ( def ? "true" : "false" ), ok );
+    QString value = readEntry( key, ( def ? "true" : "false" ), ok );
 
     if (value.lower() == "true")
         return TRUE;
     else if (value.lower() == "false")
         return FALSE;
     else if (value == "1")
         return TRUE;
     else if (value == "0")
         return FALSE;
 
     if (! value.isEmpty())
         qWarning("QSettings::readBoolEntry: '%s' is not 'true' or 'false'",
                  value.latin1());
     if ( ok )
         *ok = FALSE;
     return def;
 }
 
 
 /*!
     \fn double QSettings::readDoubleEntry(const QString &key, double def, bool *ok ) const
 
   Reads the entry specified by \a key, and returns a double, or the
   default value, \a def, if the entry couldn't be read.
   If \a ok is non-null, *ok is set to TRUE if the key was read, FALSE
   otherwise.
 
   \sa readEntry(), readNumEntry(), readBoolEntry(), writeEntry(), removeEntry()
 */
 
 /*!
     \internal
 */
 double QSettings::readDoubleEntry(const QString &key, double def, bool *ok )
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::readDoubleEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
             if ( ok )
             *ok = FALSE;
 
         return def;
     }
 
-    QString theKey = groupKey( group(), key );
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
-        return d->sysReadDoubleEntry( theKey, def, ok );
+        return d->sysReadDoubleEntry( groupKey( group(), key ), def, ok );
 #endif
 
-    QString value = readEntry( theKey, QString::number(def), ok );
+    QString value = readEntry( key, QString::number(def), ok );
     bool conv_ok;
     double retval = value.toDouble( &conv_ok );
     if ( conv_ok )
         return retval;
     if ( ! value.isEmpty() )
         qWarning( "QSettings::readDoubleEntry: '%s' is not a number",
                   value.latin1() );
     if ( ok )
         *ok = FALSE;
     return def;
 }
 
 
 /*!
     \fn int QSettings::readNumEntry(const QString &key, int def, bool *ok ) const
 
   Reads the entry specified by \a key, and returns an integer, or the
   default value, \a def, if the entry couldn't be read.
   If \a ok is non-null, *ok is set to TRUE if the key was read, FALSE
   otherwise.
 
   \sa readEntry(), readDoubleEntry(), readBoolEntry(), writeEntry(), removeEntry()
 */
 
 /*!
     \internal
 */
 int QSettings::readNumEntry(const QString &key, int def, bool *ok )
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::readNumEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         if ( ok )
             *ok = FALSE;
         return def;
     }
 
-    QString theKey = groupKey( group(), key );
-
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
-        return d->sysReadNumEntry( theKey, def, ok );
+        return d->sysReadNumEntry( groupKey( group(), key ), def, ok );
 #endif
 
-    QString value = readEntry( theKey, QString::number( def ), ok );
+    QString value = readEntry( key, QString::number( def ), ok );
     bool conv_ok;
     int retval = value.toInt( &conv_ok );
     if ( conv_ok )
         return retval;
     if ( ! value.isEmpty() )
         qWarning( "QSettings::readNumEntry: '%s' is not a number",
                   value.latin1() );
     if ( ok )
         *ok = FALSE;
     return def;
 }
 
 
 /*!
     \fn QString QSettings::readEntry(const QString &key, const QString &def, bool *ok ) const
 
   Reads the entry specified by \a key, and returns a QString, or the
   default value, \a def, if the entry couldn't be read.
   If \a ok is non-null, *ok is set to TRUE if the key was read, FALSE
   otherwise.
 
   \sa readListEntry(), readNumEntry(), readDoubleEntry(), readBoolEntry(), writeEntry(), removeEntry()
 */
 
 /*!
     \internal
 */
 QString QSettings::readEntry(const QString &key, const QString &def, bool *ok )
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::readEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         if ( ok )
             *ok = FALSE;
 
         return def;
     }
 
     QString theKey = groupKey( group(), key );
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
         return d->sysReadEntry( theKey, def, ok );
 #endif
 
     if ( ok ) // no, everything is not ok
         *ok = FALSE;
 
     QString realkey;
 
     if (theKey[0] == '/') {
         // parse our key
         QStringList list(QStringList::split('/', theKey));
 
         if (list.count() < 2) {
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::readEntry: invalid key '%s'", theKey.latin1());
 #endif // QT_CHECK_STATE
             if ( ok )
                 *ok = FALSE;
             return def;
         }
 
         if (list.count() == 2) {
             d->heading = list[0];
             d->group = "General";
             realkey = list[1];
         } else {
             d->heading = list[0];
             d->group = list[1];
 
             // remove the group from the list
             list.remove(list.at(1));
             // remove the heading from the list
             list.remove(list.at(0));
 
             realkey = list.join("/");
         }
     } else
             realkey = theKey;
 
     QSettingsGroup grp = d->readGroup();
-    QString retval = grp[realkey];
-    if ( retval.isNull() )
-        retval = def;
-    else if ( ok ) // everything is ok
-        *ok = TRUE;
+    QSettingsGroup::const_iterator it = grp.find( realkey ), end = grp.end();
+    QString retval = def;
+    if ( it != end ) {
+        // found the value we needed
+        retval = *it;
+        if ( ok ) *ok = TRUE;
+    }
     return retval;
 }
 
 
 #if !defined(Q_NO_BOOL_TYPE)
 /*!
     Writes the boolean entry \a value into key \a key. The \a key is
     created if it doesn't exist. Any previous value is overwritten by \a
     value.
 
     If an error occurs the settings are left unchanged and FALSE is
     returned; otherwise TRUE is returned.
 
   \sa readListEntry(), readNumEntry(), readDoubleEntry(), readBoolEntry(), removeEntry()
 */
 bool QSettings::writeEntry(const QString &key, bool value)
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::writeEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return FALSE;
     }
 
-    QString theKey = groupKey( group(), key );
-
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
-        return d->sysWriteEntry( theKey, value );
+        return d->sysWriteEntry( groupKey( group(), key ), value );
 #endif
     QString s(value ? "true" : "false");
-    return writeEntry(theKey, s);
+    return writeEntry(key, s);
 }
 #endif
 
 
 /*!
     \overload
     Writes the double entry \a value into key \a key. The \a key is
     created if it doesn't exist. Any previous value is overwritten by \a
     value.
 
     If an error occurs the settings are left unchanged and FALSE is
     returned; otherwise TRUE is returned.
 
   \sa readListEntry(), readNumEntry(), readDoubleEntry(), readBoolEntry(), removeEntry()
 */
 bool QSettings::writeEntry(const QString &key, double value)
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::writeEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return FALSE;
     }
 
-    QString theKey = groupKey( group(), key );
-
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
-        return d->sysWriteEntry( theKey, value );
+        return d->sysWriteEntry( groupKey( group(), key ), value );
 #endif
     QString s(QString::number(value));
-    return writeEntry(theKey, s);
+    return writeEntry(key, s);
 }
 
 
 /*!
     \overload
     Writes the integer entry \a value into key \a key. The \a key is
     created if it doesn't exist. Any previous value is overwritten by \a
     value.
 
     If an error occurs the settings are left unchanged and FALSE is
     returned; otherwise TRUE is returned.
 
   \sa readListEntry(), readNumEntry(), readDoubleEntry(), readBoolEntry(), removeEntry()
 */
 bool QSettings::writeEntry(const QString &key, int value)
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::writeEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return FALSE;
     }
 
-    QString theKey = groupKey( group(), key );
-
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
-        return d->sysWriteEntry( theKey, value );
+        return d->sysWriteEntry( groupKey( group(), key ), value );
 #endif
     QString s(QString::number(value));
-    return writeEntry(theKey, s);
+    return writeEntry(key, s);
 }
 
 
 /*!
     \internal
 
   Writes the entry specified by \a key with the string-literal \a value,
   replacing any previous setting.  If \a value is zero-length or null, the
   entry is replaced by an empty setting.
 
   \e NOTE: This function is provided because some compilers use the
   writeEntry (const QString &, bool) overload for this code:
   writeEntry ("/foo/bar", "baz")
 
   If an error occurs, this functions returns FALSE and the object is left
   unchanged.
 
   \sa readEntry(), removeEntry()
 */
 bool QSettings::writeEntry(const QString &key, const char *value)
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::writeEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return FALSE;
     }
 
-    QString theKey = groupKey( group(), key );
-
-    return writeEntry(theKey, QString(value));
+    return writeEntry(key, QString(value));
 }
 
 
 /*!
     \overload
     Writes the string entry \a value into key \a key. The \a key is
     created if it doesn't exist. Any previous value is overwritten by \a
     value. If \a value is an empty string or a null string the key's
     value will be an empty string.
 
     If an error occurs the settings are left unchanged and FALSE is
     returned; otherwise TRUE is returned.
 
   \sa readListEntry(), readNumEntry(), readDoubleEntry(), readBoolEntry(), removeEntry()
 */
 bool QSettings::writeEntry(const QString &key, const QString &value)
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::writeEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return FALSE;
     }
 
     QString theKey = groupKey( group(), key );
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
         return d->sysWriteEntry( theKey, value );
 #endif
     // NOTE: we *do* allow value to be a null/empty string
 
     QString realkey;
 
     if (theKey[0] == '/') {
         // parse our key
         QStringList list(QStringList::split('/', theKey));
 
         if (list.count() < 2) {
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::writeEntry: invalid key '%s'", theKey.latin1());
 #endif // QT_CHECK_STATE
 
             return FALSE;
         }
 
         if (list.count() == 2) {
             d->heading = list[0];
             d->group = "General";
             realkey = list[1];
         } else {
@@ -1394,58 +1448,58 @@ bool QSettings::writeEntry(const QString &key, const QString &value)
             // remove the group from the list
             list.remove(list.at(1));
             // remove the heading from the list
             list.remove(list.at(0));
 
             realkey = list.join("/");
         }
     } else
         realkey = theKey;
 
     d->writeGroup(realkey, value);
     return TRUE;
 }
 
 
 /*!
   Removes the entry specified by \a key.
 
     Returns TRUE if the entry existed and was removed; otherwise returns FALSE.
 
   \sa readEntry(), writeEntry()
 */
 bool QSettings::removeEntry(const QString &key)
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::removeEntry: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return FALSE;
     }
 
     QString theKey = groupKey( group(), key );
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
         return d->sysRemoveEntry( theKey );
 #endif
 
     QString realkey;
 
     if (theKey[0] == '/') {
         // parse our key
         QStringList list(QStringList::split('/', theKey));
 
         if (list.count() < 2) {
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::removeEntry: invalid key '%s'", theKey.latin1());
 #endif // QT_CHECK_STATE
 
             return FALSE;
         }
 
         if (list.count() == 2) {
             d->heading = list[0];
             d->group = "General";
             realkey = list[1];
         } else {
             d->heading = list[0];
@@ -1473,272 +1527,295 @@ bool QSettings::removeEntry(const QString &key)
     Example settings:
     \code
     /MyCompany/MyApplication/background color
     /MyCompany/MyApplication/foreground color
     /MyCompany/MyApplication/geometry/x
     /MyCompany/MyApplication/geometry/y
     /MyCompany/MyApplication/geometry/width
     /MyCompany/MyApplication/geometry/height
     \endcode
     \code
     QStringList keys = entryList( "/MyCompany/MyApplication" );
     \endcode
     \c keys contains 'background color' and 'foreground color'. It does
     not contain 'geometry' because this key contains keys not entries.
 
     To access the geometry values could either use subkeyList() to read
     the keys and then read each entry, or simply read each entry
     directly by specifying its full key, e.g.
     "/MyCompany/MyApplication/geometry/y".
 
   \sa subkeyList()
 */
 QStringList QSettings::entryList(const QString &key) const
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::entryList: Invalid key: %s", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return QStringList();
     }
 
     QString theKey = groupKey( group(), key );
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
         return d->sysEntryList( theKey );
 #endif
 
     QString realkey;
     if (theKey[0] == '/') {
         // parse our key
         QStringList list(QStringList::split('/', theKey));
 
         if (list.count() < 1) {
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::listEntries: invalid key '%s'", theKey.latin1());
 #endif // QT_CHECK_STATE
 
             return QStringList();
         }
 
         if (list.count() == 1) {
             d->heading = list[0];
             d->group = "General";
         } else {
             d->heading = list[0];
             d->group = list[1];
 
             // remove the group from the list
             list.remove(list.at(1));
             // remove the heading from the list
             list.remove(list.at(0));
 
             realkey = list.join("/");
         }
     } else
         realkey = theKey;
 
     QSettingsGroup grp = d->readGroup();
     QSettingsGroup::Iterator it = grp.begin();
     QStringList ret;
     QString itkey;
     while (it != grp.end()) {
         itkey = it.key();
-        it++;
+        ++it;
 
         if ( realkey.length() > 0 ) {
             if ( itkey.left( realkey.length() ) != realkey )
                 continue;
             else
                 itkey.remove( 0, realkey.length() + 1 );
         }
 
         if ( itkey.find( '/' ) != -1 )
             continue;
 
         ret << itkey;
     }
 
     return ret;
 }
 
 
 /*!
   Returns a list of the keys which contain keys under \a key. Does \e
   not return any keys that contain entries.
 
     Example settings:
     \code
     /MyCompany/MyApplication/background color
     /MyCompany/MyApplication/foreground color
     /MyCompany/MyApplication/geometry/x
     /MyCompany/MyApplication/geometry/y
     /MyCompany/MyApplication/geometry/width
     /MyCompany/MyApplication/geometry/height
     /MyCompany/MyApplication/recent files/1
     /MyCompany/MyApplication/recent files/2
     /MyCompany/MyApplication/recent files/3
     \endcode
     \code
     QStringList keys = subkeyList( "/MyCompany/MyApplication" );
     \endcode
     \c keys contains 'geometry' and 'recent files'. It does not contain
     'background color' or 'foreground color' because they are keys which
     contain entries not keys. To get a list of keys that have values
     rather than subkeys use entryList().
 
   \sa entryList()
 */
 QStringList QSettings::subkeyList(const QString &key) const
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::subkeyList: Invalid key: %s", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return QStringList();
     }
 
     QString theKey = groupKey( group(), key );
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
         return d->sysSubkeyList( theKey );
 #endif
 
     QString realkey;
+    int subkeycount = 2;
     if (theKey[0] == '/') {
         // parse our key
         QStringList list(QStringList::split('/', theKey));
 
         if (list.count() < 1) {
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::subkeyList: invalid key '%s'", theKey.latin1());
 #endif // QT_CHECK_STATE
 
             return QStringList();
         }
 
+        subkeycount = list.count();
+
         if (list.count() == 1) {
             d->heading = list[0];
             d->group = "General";
         } else {
             d->heading = list[0];
             d->group = list[1];
 
             // remove the group from the list
             list.remove(list.at(1));
             // remove the heading from the list
             list.remove(list.at(0));
 
             realkey = list.join("/");
         }
+
     } else
         realkey = theKey;
 
+    QStringList ret;
+    if ( subkeycount == 1 ) {
+        QMap<QString,QSettingsHeading>::Iterator it = d->headings.begin();
+        while ( it != d->headings.end() ) {
+            if ( it.key() != "General" && ! ret.contains( it.key() ) )
+                ret << it.key();
+            ++it;
+        }
+
+        return ret;
+    }
+
     QSettingsGroup grp = d->readGroup();
     QSettingsGroup::Iterator it = grp.begin();
-    QStringList ret;
     QString itkey;
     while (it != grp.end()) {
         itkey = it.key();
-        it++;
+        ++it;
 
         if ( realkey.length() > 0 ) {
             if ( itkey.left( realkey.length() ) != realkey )
                 continue;
             else
                 itkey.remove( 0, realkey.length() + 1 );
         }
 
         int slash = itkey.find( '/' );
         if ( slash == -1 )
             continue;
         itkey.truncate( slash );
 
         if ( ! ret.contains( itkey ) )
             ret << itkey;
     }
 
     return ret;
 }
 
 
 /*!
     \internal
 
   This function returns the time of last modification for \a key.
 */
 QDateTime QSettings::lastModficationTime(const QString &key)
 {
-    if ( !verifyKey( key ) ) {
+    if ( !qt_verify_key( key ) ) {
 #if defined(QT_CHECK_STATE)
         qWarning( "QSettings::lastModficationTime: Invalid key: '%s'", key.isNull() ? "(null)" : key.latin1() );
 #endif
         return QDateTime();
     }
 
     QString theKey = groupKey( group(), key );
 
-#if defined(Q_WS_WIN) || defined(Q_OS_MAC)
+#if !defined(QWS) && (defined(Q_WS_WIN) || defined(Q_OS_MAC))
     if ( d->sysd )
         return QDateTime();
 #endif
 
     if (theKey[0] == '/') {
         // parse our key
         QStringList list(QStringList::split('/', theKey));
 
         if (list.count() < 2) {
 #ifdef QT_CHECK_STATE
             qWarning("QSettings::lastModficationTime: invalid key '%s'", theKey.latin1());
 #endif // QT_CHECK_STATE
 
             return QDateTime();
         }
 
         if (list.count() == 2) {
             d->heading = list[0];
             d->group = "General";
         } else {
             d->heading = list[0];
             d->group = list[1];
         }
     }
 
     return d->modificationTime();
 }
 
 
 /*!
     \overload
 
     Writes the string list entry \a value into key \a key. The \a key
     is created if it doesn't exist. Any previous value is overwritten
     by \a value. The list is stored as a sequence of strings separated
-    by \a separator, so none of the strings in the list should contain
-    the separator. If the list is empty or null the key's value will
-    be an empty string.
+    by \a separator (using QStringList::join()), so none of the
+    strings in the list should contain the separator. If the list is
+    empty or null the key's value will be an empty string.
+
+    \warning The list should not contain empty or null strings, as
+    readListEntry() will use QStringList::split() to recreate the
+    list.  As the documentation states, QStringList::split() will omit
+    empty strings from the list.  Because of this, it is impossible to
+    retrieve identical list data that is stored with this function.
+    We recommend using the writeEntry() and readListEntry() overloads
+    that do not take a \a separator argument.
 
     If an error occurs the settings are left unchanged and FALSE is
     returned; otherwise returns TRUE.
 
     \sa readListEntry(), readNumEntry(), readDoubleEntry(), readBoolEntry(), removeEntry()
 */
 bool QSettings::writeEntry(const QString &key, const QStringList &value,
                            const QChar &separator)
 {
     QString s(value.join(separator));
     return writeEntry(key, s);
 }
 
 /*!
     \overload
 
     Writes the string list entry \a value into key \a key. The \a key
     is created if it doesn't exist. Any previous value is overwritten
     by \a value.
 
     If an error occurs the settings are left unchanged and FALSE is
     returned; otherwise returns TRUE.
 
     \sa readListEntry(), readNumEntry(), readDoubleEntry(), readBoolEntry(), removeEntry()
@@ -1747,48 +1824,55 @@ bool QSettings::writeEntry(const QString &key, const QStringList &value)
 {
     QString s;
     for (QStringList::ConstIterator it=value.begin(); it!=value.end(); ++it) {
         QString el = *it;
         if ( el.isNull() ) {
             el = "^0";
         } else {
             el.replace("^", "^^");
         }
         s+=el;
         s+="^e"; // end of element
     }
     return writeEntry(key, s);
 }
 
 
 /*!
     \overload QStringList QSettings::readListEntry(const QString &key, const QChar &separator, bool *ok ) const
 
     Reads the entry specified by \a key as a string. The \a separator
     is used to create a QStringList by calling QStringList::split(\a
     separator, entry). If \a ok is not 0: \a *ok is set to TRUE if the
     key was read, otherwise \a *ok is set to FALSE.
 
+    \warning As the documentation states, QStringList::split() will
+    omit empty strings from the list.  Because of this, it is
+    impossible to retrieve identical list data with this function.  We
+    recommend using the readListEntry() and writeEntry() overloads
+    that do not take a \a separator argument.
+
+
     Note that if you want to iterate over the list, you should iterate
     over a copy, e.g.
     \code
     QStringList list = mySettings.readListEntry( "size", " " );
     QStringList::Iterator it = list.begin();
     while( it != list.end() ) {
         myProcessing( *it );
         ++it;
     }
     \endcode
 
     \sa readEntry(), readDoubleEntry(), readBoolEntry(), writeEntry(), removeEntry(), QStringList::split()
 */
 
 /*!
     \internal
 */
 QStringList QSettings::readListEntry(const QString &key, const QChar &separator, bool *ok )
 {
     QString value = readEntry( key, QString::null, ok );
     if ( ok && !*ok )
         return QStringList();
 
     return QStringList::split(separator, value);
@@ -1826,130 +1910,151 @@ QStringList QSettings::readListEntry(const QString &key, bool *ok )
     QString s;
     bool esc=FALSE;
     for (int i=0; i<(int)value.length(); i++) {
         if ( esc ) {
             if ( value[i] == 'e' ) { // end-of-string
                 l.append(s);
                 s="";
             } else if ( value[i] == '0' ) { // null string
                 s=QString::null;
             } else {
                 s.append(value[i]);
             }
             esc=FALSE;
         } else if ( value[i] == '^' ) {
             esc = TRUE;
         } else {
             s.append(value[i]);
             if ( i == (int)value.length()-1 )
                 l.append(s);
         }
     }
     return l;
 }
 
+#ifdef Q_OS_MAC
+void qt_setSettingsBasePath(const QString &); //qsettings_mac.cpp
+#endif
+
 /*!
   Insert platform-dependent paths from platform-independent information.
 
   The \a domain should be an Internet domain name
   controlled by the producer of the software, eg. Trolltech products
   use "trolltech.com".
 
   The \a product should be the official name of the product.
 
   The \a scope should be
   QSettings::User for user-specific settings, or
   QSettings::Global for system-wide settings (generally
   these will be read-only to many users).
+
+    Not all information is relevant on all systems (e.g. scoping is
+    currently used only if QSettings accesses the Windows registry).
 */
 
 void QSettings::setPath( const QString &domain, const QString &product, Scope scope )
 {
 //    On Windows, any trailing ".com(\..*)" is stripped from the domain. The
 //    Global scope corresponds to HKEY_LOCAL_MACHINE, and User corresponds to
 //    HKEY_CURRENT_USER. Note that on some installations, not all users can
 //    write to the Global scope. On UNIX, any trailing ".com(\..*)" is stripped
 //    from the domain. The Global scope corresponds to "/opt" (this would be
 //    configurable at library build time - eg. to "/usr/local" or "/usr"),
 //    while the User scope corresponds to $HOME/.*rc.
 //    Note that on most installations, not all users can write to the System
 //    scope.
 //    
 //    On MacOS X, if there is no "." in domain, append ".com", then reverse the
 //    order of the elements (Mac OS uses "com.apple.finder" as domain+product).
 //    The Global scope corresponds to /Library/Preferences/*.plist, while the
 //    User scope corresponds to ~/Library/Preferences/*.plist.
 //    Note that on most installations, not all users can write to the System
 //    scope.
+    d->globalScope = scope == Global;
+
     QString actualSearchPath;
     int lastDot = domain.findRev( '.' );
 
 #if defined(Q_WS_WIN)
     actualSearchPath = "/" + domain.mid( 0, lastDot ) + "/" + product;
     insertSearchPath( Windows, actualSearchPath );
-#elif defined(Q_WS_MAC)
+#elif !defined(QWS) && defined(Q_OS_MAC)
     QString topLevelDomain = domain.right( domain.length() - lastDot - 1 ) + ".";
-    if ( topLevelDomain.isEmpty() )
-        topLevelDomain = "com.";
-    actualSearchPath = "/" + topLevelDomain + domain.left( lastDot ) + product;
+    if ( !topLevelDomain.isEmpty() )
+        qt_setSettingsBasePath( topLevelDomain );
+    actualSearchPath = "/" + domain.left( lastDot ) + product;
     insertSearchPath( Mac, actualSearchPath );
 #else
     actualSearchPath = "/" + domain.mid( 0, lastDot ) + "/" + product;
     insertSearchPath( Unix, actualSearchPath );
 #endif
-
-    d->globalScope = scope == Global;
 }
 
 /*!
     Appends \a group to the current key prefix.
+
+    \code
+    QSettings settings;
+    settings.beginGroup( "/MainWindow" );
+    // read values
+    settings.endGroup();
+    \endcode
 */
 void QSettings::beginGroup( const QString &group )
 {
     d->groupStack.push( group );
     d->groupDirty = TRUE;
 }
 
 /*!
     Undo previous calls to beginGroup(). Note that a single beginGroup("a/b/c") is undone
     by a single call to endGroup().
+
+    \code
+    QSettings settings;
+    settings.beginGroup( "/MainWindow/Geometry" );
+    // read values
+    settings.endGroup();
+    \endcode
 */
 void QSettings::endGroup()
 {
     d->groupStack.pop();
     d->groupDirty = TRUE;
 }
 
 /*!
     Set the current key prefix to the empty string.
 */
 void QSettings::resetGroup()
 {
     d->groupStack.clear();
     d->groupDirty = FALSE;
     d->groupPrefix = QString::null;
 }
 
 /*!
     Returns the current key prefix, or a null string if there is no key prefix set.
 
     \sa beginGroup();
 */
 QString QSettings::group() const
 {
     if ( d->groupDirty ) {
         d->groupDirty = FALSE;
         d->groupPrefix = QString::null;
 
         QValueStack<QString>::Iterator it = d->groupStack.begin();
         while ( it != d->groupStack.end() ) {
             QString group = *it;
             ++it;
             if ( group[0] != '/' )
-                group = "/" + group;
+                group.prepend( "/" );
             d->groupPrefix += group;
         }
     }
     return d->groupPrefix;
 }
 
 #endif