Using QLatin1String and QLatin1Char now everywhere

- it saves few unnecessary allocations

src/lib/3rdparty/fancytabwidget.cpp

@@ -182,7 +182,7 @@ void FancyTabProxyStyle::drawControl(
 
 void FancyTabProxyStyle::polish(QWidget* widget)
 {
-    if (QString(widget->metaObject()->className()) == "QTabBar") {
+    if (QString(widget->metaObject()->className()) == QLatin1String("QTabBar")) {
         widget->setMouseTracking(true);
         widget->installEventFilter(this);
     }

src/lib/adblock/adblockaddsubscriptiondialog.cpp

@@ -63,7 +63,7 @@ void AdBlockAddSubscriptionDialog::indexChanged(int index)
 {
     const Subscription &subscription = m_knownSubscriptions.at(index);
 
-    int pos = subscription.title.indexOf('(');
+    int pos = subscription.title.indexOf(QLatin1Char('('));
     QString title = subscription.title;
 
     if (pos > 0) {

src/lib/adblock/adblockicon.cpp

@@ -46,7 +46,7 @@ AdBlockIcon::AdBlockIcon(QupZilla* mainClass, QWidget* parent)
 
 void AdBlockIcon::popupBlocked(const QString &ruleString, const QUrl &url)
 {
-    int index = ruleString.lastIndexOf(" (");
+    int index = ruleString.lastIndexOf(QLatin1String(" ("));
 
     const QString &subscriptionName = ruleString.left(index);
     const QString &filter = ruleString.mid(index + 2, ruleString.size() - index - 3);
@@ -112,7 +112,7 @@ void AdBlockIcon::createMenu(QMenu* menu)
     menu->addSeparator();
 
     if (!pageUrl.isEmpty()) {
-        const QString &host = page->url().host().contains("www.") ? pageUrl.host().mid(4) : pageUrl.host();
+        const QString &host = page->url().host().contains(QLatin1String("www.")) ? pageUrl.host().mid(4) : pageUrl.host();
         const QString &hostFilter = QString("@@||%1^$document").arg(host);
         const QString &pageFilter = QString("@@|%1|$document").arg(pageUrl.toString());
 
@@ -137,7 +137,7 @@ void AdBlockIcon::createMenu(QMenu* menu)
             const QPair<AdBlockRule, QUrl> &pair = m_blockedPopups.at(i);
 
             QString address = pair.second.toString().right(55);
-            QString actionText = tr("%1 with (%2)").arg(address, pair.first.filter()).replace('&', "&&");
+            QString actionText = tr("%1 with (%2)").arg(address, pair.first.filter()).replace(QLatin1Char('&'), QLatin1String("&&"));
 
             QAction* action = menu->addAction(actionText, manager, SLOT(showRule()));
             action->setData(qVariantFromValue((void*)&pair.first));
@@ -153,7 +153,7 @@ void AdBlockIcon::createMenu(QMenu* menu)
         menu->addAction(tr("Blocked URL (AdBlock Rule) - click to edit rule"))->setEnabled(false);
         foreach(const WebPage::AdBlockedEntry & entry, entries) {
             QString address = entry.url.toString().right(55);
-            QString actionText = tr("%1 with (%2)").arg(address, entry.rule->filter()).replace('&', "&&");
+            QString actionText = tr("%1 with (%2)").arg(address, entry.rule->filter()).replace(QLatin1Char('&'), QLatin1String("&&"));
 
             QAction* action = menu->addAction(actionText, manager, SLOT(showRule()));
             action->setData(qVariantFromValue((void*)entry.rule));

src/lib/adblock/adblockmanager.cpp

@@ -202,7 +202,7 @@ void AdBlockManager::load()
     }
 
     foreach(const QString & fileName, adblockDir.entryList(QStringList("*.txt"), QDir::Files)) {
-        if (fileName == "easylist.txt" || fileName == "customlist.txt") {
+        if (fileName == QLatin1String("easylist.txt") || fileName == QLatin1String("customlist.txt")) {
             continue;
         }
 
@@ -213,8 +213,8 @@ void AdBlockManager::load()
         }
 
         QTextStream textStream(&file);
-        QString title = textStream.readLine(1024).remove("Title: ");
-        QUrl url = QUrl(textStream.readLine(1024).remove("Url: "));
+        QString title = textStream.readLine(1024).remove(QLatin1String("Title: "));
+        QUrl url = QUrl(textStream.readLine(1024).remove(QLatin1String("Url: ")));
 
         if (title.isEmpty() || !url.isValid()) {
             qWarning() << "AdBlockManager: Invalid subscription file" << absolutePath;

src/lib/adblock/adblockrule.cpp

@@ -172,7 +172,7 @@ bool AdBlockRule::isException() const
 
 bool AdBlockRule::isComment() const
 {
-    return m_filter.startsWith('!');
+    return m_filter.startsWith(QLatin1Char('!'));
 }
 
 bool AdBlockRule::isEnabled() const
@@ -407,7 +407,7 @@ void AdBlockRule::parseFilter()
             }
             else if (option.endsWith(QLatin1String("subdocument"))) {
                 m_subdocument = true;
-                m_subdocumentException = option.startsWith('~');
+                m_subdocumentException = option.startsWith(QLatin1Char('~'));
                 ++handledOptions;
             }
             else if (option.endsWith(QLatin1String("xmlhttprequest"))) {
@@ -513,7 +513,7 @@ void AdBlockRule::parseDomains(const QString &domains, const QChar &separator)
         if (domain.isEmpty()) {
             continue;
         }
-        if (domain.startsWith('~')) {
+        if (domain.startsWith(QLatin1Char('~'))) {
             m_blockedDomains.append(domain.mid(1));
         }
         else {

src/lib/adblock/adblocksubscription.cpp

@@ -108,7 +108,7 @@ void AdBlockSubscription::loadSubscription(const QStringList &disabledRules)
     textStream.readLine(1024);
     QString header = textStream.readLine(1024);
 
-    if (!header.startsWith("[Adblock") || m_title.isEmpty()) {
+    if (!header.startsWith(QLatin1String("[Adblock")) || m_title.isEmpty()) {
         qWarning() << "AdBlockSubscription::" << __FUNCTION__ << "invalid format of adblock file" << m_filePath;
         QTimer::singleShot(0, this, SLOT(updateSubscription()));
         return;
@@ -398,7 +398,7 @@ void AdBlockEasyList::saveDownloadedData(QByteArray &data)
 
     // Third-party advertisers rules are with start domain (||) placeholder which needs regexps
     // So we are ignoring it for keeping good performance
-    data = data.left(data.indexOf("!-----------------------------Third-party adverts-----------------------------!"));
+    data = data.left(data.indexOf(QLatin1String("!-----------------------------Third-party adverts-----------------------------!")));
 
     file.write(data);
     file.close();

src/lib/app/commandlineoptions.cpp

@@ -76,7 +76,7 @@ void CommandLineOptions::parseActions()
     for (int i = 1; i < arguments.count(); ++i) {
         QString arg = arguments.at(i);
 
-        if (arg == "-h" || arg == "--help") {
+        if (arg == QLatin1String("-h") || arg == QLatin1String("--help")) {
             showHelp();
             ActionPair pair;
             pair.action = Qz::CL_ExitAction;
@@ -84,7 +84,7 @@ void CommandLineOptions::parseActions()
             break;
         }
 
-        if (arg == "-a" || arg == "--authors") {
+        if (arg == QLatin1String("-a") || arg == QLatin1String("--authors")) {
             cout << "QupZilla authors: " << endl;
             cout << "  nowrep <nowrep@gmail.com>" << endl;
             ActionPair pair;
@@ -93,7 +93,7 @@ void CommandLineOptions::parseActions()
             break;
         }
 
-        if (arg == "-v" || arg == "--version") {
+        if (arg == QLatin1String("-v") || arg == QLatin1String("--version")) {
             cout << "QupZilla v" << QupZilla::VERSION.toUtf8().data()
 #ifdef GIT_REVISION
                  << " rev " << GIT_REVISION << " "
@@ -106,8 +106,8 @@ void CommandLineOptions::parseActions()
             break;
         }
 
-        if (arg.startsWith("-p=") || arg.startsWith("--profile=")) {
-            int index = arg.indexOf('=');
+        if (arg.startsWith(QLatin1String("-p=")) || arg.startsWith(QLatin1String("--profile="))) {
+            int index = arg.indexOf(QLatin1Char('='));
             if (index != -1) {
                 const QString profileName = arg.mid(index + 1);
                 cout << "QupZilla: Starting with profile '" << profileName.toUtf8().data() << "'" << endl;
@@ -119,44 +119,44 @@ void CommandLineOptions::parseActions()
             }
         }
 
-        if (arg.startsWith("-ne") || arg.startsWith("--no-extensions")) {
+        if (arg.startsWith(QLatin1String("-ne")) || arg.startsWith(QLatin1String("--no-extensions"))) {
             ActionPair pair;
             pair.action = Qz::CL_StartWithoutAddons;
             m_actions.append(pair);
         }
 
-        if (arg.startsWith("-nt") || arg.startsWith("--new-tab")) {
+        if (arg.startsWith(QLatin1String("-nt")) || arg.startsWith(QLatin1String("--new-tab"))) {
             ActionPair pair;
             pair.action = Qz::CL_NewTab;
             m_actions.append(pair);
         }
 
-        if (arg.startsWith("-nw") || arg.startsWith("--new-window")) {
+        if (arg.startsWith(QLatin1String("-nw")) || arg.startsWith(QLatin1String("--new-window"))) {
             ActionPair pair;
             pair.action = Qz::CL_NewWindow;
             m_actions.append(pair);
         }
 
-        if (arg.startsWith("-dm") || arg.startsWith("--download-manager")) {
+        if (arg.startsWith(QLatin1String("-dm")) || arg.startsWith(QLatin1String("--download-manager"))) {
             ActionPair pair;
             pair.action = Qz::CL_ShowDownloadManager;
             m_actions.append(pair);
         }
 
-        if (arg.startsWith("-pb") || arg.startsWith("--private-browsing")) {
+        if (arg.startsWith(QLatin1String("-pb")) || arg.startsWith(QLatin1String("--private-browsing"))) {
             ActionPair pair;
             pair.action = Qz::CL_StartPrivateBrowsing;
             m_actions.append(pair);
         }
 
-        if (arg.startsWith("-nr") || arg.startsWith("--no-remote")) {
+        if (arg.startsWith(QLatin1String("-nr")) || arg.startsWith(QLatin1String("--no-remote"))) {
             ActionPair pair;
             pair.action = Qz::CL_StartNewInstance;
             m_actions.append(pair);
         }
 
-        if (arg.startsWith("-ct") || arg.startsWith("--current-tab")) {
-            int index = arg.indexOf('=');
+        if (arg.startsWith(QLatin1String("-ct")) || arg.startsWith(QLatin1String("--current-tab"))) {
+            int index = arg.indexOf(QLatin1Char('='));
             if (index != -1) {
                 ActionPair pair;
                 pair.action = Qz::CL_OpenUrlInCurrentTab;
@@ -165,8 +165,8 @@ void CommandLineOptions::parseActions()
             }
         }
 
-        if (arg.startsWith("-ow") || arg.startsWith("--open-window")) {
-            int index = arg.indexOf('=');
+        if (arg.startsWith(QLatin1String("-ow")) || arg.startsWith(QLatin1String("--open-window"))) {
+            int index = arg.indexOf(QLatin1Char('='));
             if (index != -1) {
                 ActionPair pair;
                 pair.action = Qz::CL_OpenUrlInNewWindow;
@@ -178,8 +178,9 @@ void CommandLineOptions::parseActions()
 
     const QString &url = arguments.last();
 
-    if (m_argc > 1 && !url.isEmpty() && !url.startsWith('-') &&
-            (url.contains('.') || url.contains('/') || url.contains('\\'))) {
+    if (m_argc > 1 && !url.isEmpty() && !url.startsWith(QLatin1Char('-')) &&
+            (url.contains(QLatin1Char('.')) || url.contains(QLatin1Char('/'))
+             || url.contains(QLatin1Char('\\')))) {
         ActionPair pair;
         pair.action = Qz::CL_OpenUrl;
         pair.text = url;

src/lib/app/mainapplication.cpp

@@ -101,7 +101,7 @@ MainApplication::MainApplication(int &argc, char** argv)
 #endif
 
 #ifdef Q_OS_MAC
-    DATADIR.append("../Resources/");
+    DATADIR.append(QLatin1String("../Resources/"));
 #endif
 
 #ifdef PORTABLE_BUILD
@@ -132,14 +132,14 @@ MainApplication::MainApplication(int &argc, char** argv)
                 startProfile = pair.text;
                 break;
             case Qz::CL_NewTab:
-                messages.append("ACTION:NewTab");
+                messages.append(QLatin1String("ACTION:NewTab"));
                 m_postLaunchActions.append(OpenNewTab);
                 break;
             case Qz::CL_NewWindow:
-                messages.append("ACTION:NewWindow");
+                messages.append(QLatin1String("ACTION:NewWindow"));
                 break;
             case Qz::CL_ShowDownloadManager:
-                messages.append("ACTION:ShowDownloadManager");
+                messages.append(QLatin1String("ACTION:ShowDownloadManager"));
                 m_postLaunchActions.append(OpenDownloadManager);
                 break;
             case Qz::CL_StartPrivateBrowsing:
@@ -174,7 +174,7 @@ MainApplication::MainApplication(int &argc, char** argv)
         QString appId = "QupZillaWebBrowser";
 
         if (newInstance) {
-            if (startProfile.isEmpty() || startProfile == "default") {
+            if (startProfile.isEmpty() || startProfile == QLatin1String("default")) {
                 std::cout << "New instance cannot be started with default profile!" << std::endl;
             }
             else {
@@ -186,7 +186,7 @@ MainApplication::MainApplication(int &argc, char** argv)
     }
 
     if (messages.isEmpty()) {
-        messages.append(" ");
+        messages.append(QLatin1String(" "));
     }
 
     if (isRunning()) {
@@ -213,7 +213,7 @@ MainApplication::MainApplication(int &argc, char** argv)
     QSettings::setDefaultFormat(QSettings::IniFormat);
     if (startProfile.isEmpty()) {
         QSettings settings(PROFILEDIR + "profiles/profiles.ini", QSettings::IniFormat);
-        if (settings.value("Profiles/startProfile", "default").toString().contains('/')) {
+        if (settings.value("Profiles/startProfile", "default").toString().contains(QLatin1Char('/'))) {
             m_activeProfil = PROFILEDIR + "profiles/default/";
         }
         else {
@@ -483,27 +483,27 @@ void MainApplication::receiveAppMessage(QString message)
     QWidget* actWin = getWindow();
     QUrl actUrl;
 
-    if (message.startsWith("URL:")) {
+    if (message.startsWith(QLatin1String("URL:"))) {
         QUrl url = QUrl::fromUserInput(message.mid(4));
         addNewTab(url);
         actWin = getWindow();
     }
-    else if (message.startsWith("ACTION:")) {
+    else if (message.startsWith(QLatin1String("ACTION:"))) {
         QString text = message.mid(7);
-        if (text == "NewTab") {
+        if (text == QLatin1String("NewTab")) {
             addNewTab();
         }
-        else if (text == "NewWindow") {
+        else if (text == QLatin1String("NewWindow")) {
             actWin = makeNewWindow(Qz::BW_NewWindow);
         }
-        else if (text == "ShowDownloadManager") {
+        else if (text == QLatin1String("ShowDownloadManager")) {
             downManager()->show();
             actWin = downManager();
         }
-        else if (text.startsWith("OpenUrlInCurrentTab")) {
+        else if (text.startsWith(QLatin1String("OpenUrlInCurrentTab"))) {
             actUrl = QUrl::fromUserInput(text.mid(19));
         }
-        else if (text.startsWith("OpenUrlInNewWindow")) {
+        else if (text.startsWith(QLatin1String("OpenUrlInNewWindow"))) {
             makeNewWindow(Qz::BW_NewWindow, QUrl::fromUserInput(text.mid(18)));
             return;
         }
@@ -789,12 +789,12 @@ void MainApplication::startPrivateBrowsing()
 {
     QStringList args;
     foreach(const QString & arg, arguments()) {
-        if (arg.startsWith('-')) {
+        if (arg.startsWith(QLatin1Char('-'))) {
             args.append(arg);
         }
     }
 
-    args.append("--private-browsing");
+    args.append(QLatin1String("--private-browsing"));
 
     if (!QProcess::startDetached(applicationFilePath(), args)) {
         qWarning() << "MainApplication: Cannot start new browser process for private browsing!" << applicationFilePath() << args;
@@ -816,7 +816,7 @@ QUrl MainApplication::userStyleSheet(const QString &filePath) const
     QFile file(filePath);
     if (!filePath.isEmpty() && file.open(QFile::ReadOnly)) {
         QString fileData = QString::fromUtf8(file.readAll());
-        fileData.remove('\n');
+        fileData.remove(QLatin1Char('\n'));
         userStyle.append(fileData);
         file.close();
     }

src/lib/app/proxystyle.cpp

@@ -39,7 +39,7 @@ int ProxyStyle::pixelMetric(PixelMetric metric, const QStyleOption* option, cons
         if (m_TabBarTabHSpace == -1) {
             m_TabBarTabHSpace = qMin(QProxyStyle::pixelMetric(PM_TabBarTabHSpace, option, widget), 14);
 
-            if (baseStyle()->objectName() == "oxygen") {
+            if (baseStyle()->objectName() == QLatin1String("oxygen")) {
                 m_TabBarTabHSpace = 14;
             }
         }

src/lib/app/qupzilla.cpp

@@ -192,7 +192,7 @@ void QupZilla::postLaunch()
 
         m_tabWidget->addView(request, Qz::NT_CleanSelectedTabAtTheEnd);
 
-        if (startUrl.isEmpty() || startUrl.toString() == "qupzilla:speeddial") {
+        if (startUrl.isEmpty() || startUrl.toString() == QLatin1String("qupzilla:speeddial")) {
             locationBar()->setFocus();
         }
     }
@@ -968,27 +968,30 @@ void QupZilla::aboutToShowEncodingMenu()
         if (QTextCodec::codecForName(name)->aliases().contains(name)) {
             continue;
         }
-        QAction* action = new QAction(name, 0);
-        action->setData(name);
+
+        const QString nameString = QString::fromUtf8(name);
+
+        QAction* action = new QAction(nameString, 0);
+        action->setData(nameString);
         action->setCheckable(true);
         connect(action, SIGNAL(triggered()), this, SLOT(changeEncoding()));
-        if (activeCodec.compare(name, Qt::CaseInsensitive) == 0) {
+        if (activeCodec.compare(nameString, Qt::CaseInsensitive) == 0) {
             action->setChecked(true);
         }
 
-        if (name.startsWith("ISO")) {
+        if (nameString.startsWith(QLatin1String("ISO"))) {
             menuISO->addAction(action);
         }
-        else if (name.startsWith("UTF")) {
+        else if (nameString.startsWith(QLatin1String("UTF"))) {
             menuUTF->addAction(action);
         }
-        else if (name.startsWith("windows")) {
+        else if (nameString.startsWith(QLatin1String("windows"))) {
             menuWindows->addAction(action);
         }
-        else if (name.startsWith("Iscii")) {
+        else if (nameString.startsWith(QLatin1String("Iscii"))) {
             menuIscii->addAction(action);
         }
-        else if (name == "System") {
+        else if (nameString == QLatin1String("System")) {
             m_menuEncoding->addAction(action);
         }
         else {

src/lib/autofill/autofillmodel.cpp

@@ -229,8 +229,8 @@ void AutoFillModel::completePage(WebPage* page)
     for (int i = 0; i < arguments.count(); i++) {
         QString key = arguments.at(i).first;
         QString value = arguments.at(i).second;
-        key.replace('+', ' ');
-        value.replace('+', ' ');
+        key.replace(QLatin1Char('+'), QLatin1Char(' '));
+        value.replace(QLatin1Char('+'), QLatin1Char(' '));
 
         key = QUrl::fromEncoded(key.toUtf8()).toString();
         value = QUrl::fromEncoded(value.toUtf8()).toString();
@@ -238,7 +238,9 @@ void AutoFillModel::completePage(WebPage* page)
         for (int i = 0; i < inputs.count(); i++) {
             QWebElement element = inputs.at(i);
 
-            if (element.attribute("type") != "text" && element.attribute("type") != "password" && !element.attribute("type").isEmpty()) {
+            if (element.attribute("type") != QLatin1String("text")
+                    && element.attribute("type") != QLatin1String("password")
+                    && !element.attribute("type").isEmpty()) {
                 continue;
             }
 
@@ -382,13 +384,13 @@ QByteArray AutoFillModel::convertWebKitFormBoundaryIfNecessary(const QByteArray
         QString string = rx.cap(1);
         pos += rx.matchedLength();
 
-        int endOfAttributeName = string.indexOf('"');
+        int endOfAttributeName = string.indexOf(QLatin1Char('"'));
         if (endOfAttributeName == -1) {
             continue;
         }
 
         QString attrName = string.left(endOfAttributeName);
-        QString attrValue = string.mid(endOfAttributeName + 1).trimmed().remove('\n');
+        QString attrValue = string.mid(endOfAttributeName + 1).trimmed().remove(QLatin1Char('\n'));
 
         if (attrName.isEmpty() || attrValue.isEmpty()) {
             continue;
@@ -462,27 +464,27 @@ bool AutoFillModel::importPasswords(const QByteArray &data)
         xml.readNext();
 
         if (xml.isStartElement()) {
-            if (xml.name() == "entry") {
+            if (xml.name() == QLatin1String("entry")) {
                 QString server;
                 QString username;
                 QString password;
                 QByteArray data;
 
                 while (xml.readNext()) {
-                    if (xml.name() == "server") {
+                    if (xml.name() == QLatin1String("server")) {
                         server = xml.readElementText();
                     }
-                    else if (xml.name() == "username") {
+                    else if (xml.name() == QLatin1String("username")) {
                         username = xml.readElementText();
                     }
-                    else if (xml.name() == "password") {
+                    else if (xml.name() == QLatin1String("password")) {
                         password = xml.readElementText();
                     }
-                    else if (xml.name() == "data") {
+                    else if (xml.name() == QLatin1String("data")) {
                         data = xml.readElementText().toUtf8();
                     }
 
-                    if (xml.isEndElement() && xml.name() == "entry") {
+                    if (xml.isEndElement() && xml.name() == QLatin1String("entry")) {
                         break;
                     }
                 }
@@ -505,15 +507,15 @@ bool AutoFillModel::importPasswords(const QByteArray &data)
                     }
                 }
             }
-            else if (xml.name() == "exception") {
+            else if (xml.name() == QLatin1String("exception")) {
                 QString server;
 
                 while (xml.readNext()) {
-                    if (xml.name() == "server") {
+                    if (xml.name() == QLatin1String("server")) {
                         server = xml.readElementText();
                     }
 
-                    if (xml.isEndElement() && xml.name() == "exception") {
+                    if (xml.isEndElement() && xml.name() == QLatin1String("exception")) {
                         break;
                     }
                 }

src/lib/bookmarks/bookmarksmanager.cpp

@@ -345,10 +345,10 @@ void BookmarksManager::refreshTable()
         QString folder = query.value(3).toString();
         QIcon icon = qIconProvider->iconFromImage(QImage::fromData(query.value(4).toByteArray()));
         QTreeWidgetItem* item = new QTreeWidgetItem();
-        if (folder == "bookmarksMenu") {
+        if (folder == QLatin1String("bookmarksMenu")) {
             folder = _bookmarksMenu;
         }
-        if (folder == "bookmarksToolbar") {
+        if (folder == QLatin1String("bookmarksToolbar")) {
             folder = _bookmarksToolbar;
         }
 
@@ -474,7 +474,7 @@ void BookmarksManager::removeBookmark(const BookmarksModel::Bookmark &bookmark)
             }
         }
     }
-    else if (bookmark.folder == "unsorted") {
+    else if (bookmark.folder == QLatin1String("unsorted")) {
         QList<QTreeWidgetItem*> list = ui->bookmarksTree->findItems(bookmark.title, Qt::MatchExactly);
         if (list.count() == 0) {
             return;

src/lib/bookmarks/bookmarksmodel.cpp

@@ -65,7 +65,8 @@ void BookmarksModel::setShowingOnlyIconsInToolbar(bool state)
 
 bool BookmarksModel::isFolder(const QString &name)
 {
-    if (name == "bookmarksToolbar" || name == "bookmarksMenu" || name == "unsorted") {
+    if (name == QLatin1String("bookmarksToolbar") || name == QLatin1String("bookmarksMenu")
+            || name == QLatin1String("unsorted")) {
         return true;
     }
 
@@ -501,7 +502,7 @@ bool BookmarksModel::isSubfolder(const QString &name)
         return false;
     }
 
-    return query.value(0).toString() == "yes";
+    return query.value(0).toString() == QLatin1String("yes");
 }
 
 bool BookmarksModel::bookmarksEqual(const Bookmark &one, const Bookmark &two)
@@ -524,13 +525,13 @@ bool BookmarksModel::bookmarksEqual(const Bookmark &one, const Bookmark &two)
 QString BookmarksModel::toTranslatedFolder(const QString &name)
 {
     QString trFolder;
-    if (name == "bookmarksMenu") {
+    if (name == QLatin1String("bookmarksMenu")) {
         trFolder = tr("Bookmarks In Menu");
     }
-    else if (name == "bookmarksToolbar") {
+    else if (name == QLatin1String("bookmarksToolbar")) {
         trFolder = tr("Bookmarks In ToolBar");
     }
-    else if (name == "unsorted") {
+    else if (name == QLatin1String("unsorted")) {
         trFolder = tr("Unsorted Bookmarks");
     }
     else {

src/lib/bookmarks/bookmarkstoolbar.cpp

@@ -444,13 +444,16 @@ void BookmarksToolbar::removeBookmark(const BookmarksModel::Bookmark &bookmark)
 
 void BookmarksToolbar::bookmarkEdited(const BookmarksModel::Bookmark &before, const BookmarksModel::Bookmark &after)
 {
-    if (before.folder == "bookmarksToolbar" && after.folder != "bookmarksToolbar") { //Editing from toolbar folder to other folder -> Remove bookmark
+    if (before.folder == QLatin1String("bookmarksToolbar") && after.folder != QLatin1String("bookmarksToolbar")) {
+        // Editing from toolbar folder to other folder -> Remove bookmark
         removeBookmark(before);
     }
-    else if (before.folder != "bookmarksToolbar" && after.folder == "bookmarksToolbar") {   //Editing from other folder to toolbar folder -> Add bookmark
+    else if (before.folder != QLatin1String("bookmarksToolbar") && after.folder == QLatin1String("bookmarksToolbar")) {
+        // Editing from other folder to toolbar folder -> Add bookmark
         addBookmark(after);
     }
-    else {   //Editing bookmark already in toolbar
+    else {
+        // Editing bookmark already in toolbar
         for (int i = 0; i < m_layout->count(); i++) {
             ToolButton* button = qobject_cast<ToolButton*>(m_layout->itemAt(i)->widget());
             if (!button) {

src/lib/bookmarksimport/firefoximporter.cpp

@@ -73,7 +73,8 @@ QList<BookmarksModel::Bookmark> FirefoxImporter::exportBookmarks()
 
         QUrl url = query2.value(0).toUrl();
 
-        if (title.isEmpty() || url.isEmpty() || url.scheme() == "place" || url.scheme() == "about") {
+        if (title.isEmpty() || url.isEmpty() || url.scheme() == QLatin1String("place")
+                || url.scheme() == QLatin1String("about")) {
             continue;
         }
 

src/lib/bookmarksimport/htmlimporter.cpp

@@ -69,29 +69,29 @@ QList<BookmarksModel::Bookmark> HtmlImporter::exportBookmarks()
     // Converting tags to lower case -,-
     // For some reason Qt::CaseInsensitive is not everytime insensitive :-D
 
-    bookmarks.replace("<DL", "<dl");
-    bookmarks.replace("</DL", "</dl");
-    bookmarks.replace("<DT", "<dt");
-    bookmarks.replace("</DT", "</dt");
-    bookmarks.replace("<P", "<p");
-    bookmarks.replace("</P", "</p");
-    bookmarks.replace("<A", "<a");
-    bookmarks.replace("</A", "</a");
-    bookmarks.replace("HREF=", "href=");
-    bookmarks.replace("<H3", "<h3");
-    bookmarks.replace("</H3", "</h3");
+    bookmarks.replace(QLatin1String("<DL"), QLatin1String("<dl"));
+    bookmarks.replace(QLatin1String("</DL"), QLatin1String("</dl"));
+    bookmarks.replace(QLatin1String("<DT"), QLatin1String("<dt"));
+    bookmarks.replace(QLatin1String("</DT"), QLatin1String("</dt"));
+    bookmarks.replace(QLatin1String("<P"), QLatin1String("<p"));
+    bookmarks.replace(QLatin1String("</P"), QLatin1String("</p"));
+    bookmarks.replace(QLatin1String("<A"), QLatin1String("<a"));
+    bookmarks.replace(QLatin1String("</A"), QLatin1String("</a"));
+    bookmarks.replace(QLatin1String("HREF="), QLatin1String("href="));
+    bookmarks.replace(QLatin1String("<H3"), QLatin1String("<h3"));
+    bookmarks.replace(QLatin1String("</H3"), QLatin1String("</h3"));
 
-    bookmarks = bookmarks.left(bookmarks.lastIndexOf("</dl><p>"));
-    int start = bookmarks.indexOf("<dl><p>");
+    bookmarks = bookmarks.left(bookmarks.lastIndexOf(QLatin1String("</dl><p>")));
+    int start = bookmarks.indexOf(QLatin1String("<dl><p>"));
 
     QStringList folders("Html Import");
 
     while (start > 0) {
         QString string = bookmarks.mid(start);
 
-        int posOfFolder = string.indexOf("<dt><h3");
-        int posOfEndFolder = string.indexOf("</dl><p>");
-        int posOfLink = string.indexOf("<dt><a");
+        int posOfFolder = string.indexOf(QLatin1String("<dt><h3"));
+        int posOfEndFolder = string.indexOf(QLatin1String("</dl><p>"));
+        int posOfLink = string.indexOf(QLatin1String("<dt><a"));
 
         int nearest = qzMin(posOfLink, qzMin(posOfFolder, posOfEndFolder));
         if (nearest == -1) {
@@ -136,7 +136,8 @@ QList<BookmarksModel::Bookmark> HtmlImporter::exportBookmarks()
 
             start += posOfLink + rx.cap(0).size();
 
-            if (linkName.isEmpty() || url.isEmpty() || url.scheme() == "place" || url.scheme() == "about") {
+            if (linkName.isEmpty() || url.isEmpty() || url.scheme() == QLatin1String("place")
+                    || url.scheme() == QLatin1String("about")) {
                 continue;
             }
 

src/lib/cookies/cookiejar.cpp

@@ -33,11 +33,11 @@ bool _matchDomain(const QString &domain, const QString &filter)
 
     int index = domain.indexOf(filter);
 
-    if (index == 0 || filter[0] == '.') {
+    if (index == 0 || filter[0] == QLatin1Char('.')) {
         return true;
     }
 
-    return domain[index - 1] == '.';
+    return domain[index - 1] == QLatin1Char('.');
 }
 
 bool containsDomain(QString string, const QString &domain)
@@ -47,7 +47,7 @@ bool containsDomain(QString string, const QString &domain)
         return true;
     }
 
-    if (string.startsWith('.')) {
+    if (string.startsWith(QLatin1Char('.'))) {
         string = string.mid(1);
     }
 

src/lib/cookies/cookiemanager.cpp

@@ -160,7 +160,7 @@ void CookieManager::slotRefreshTable()
         QTreeWidgetItem* item;
 
         QString cookieDomain = cookie.domain();
-        if (cookieDomain.startsWith('.')) {
+        if (cookieDomain.startsWith(QLatin1Char('.'))) {
             cookieDomain = cookieDomain.mid(1);
         }
 

src/lib/desktopnotifications/desktopnotificationsfactory.cpp

@@ -84,7 +84,7 @@ void DesktopNotificationsFactory::showNotification(const QPixmap &icon, const QS
 
         QDBusInterface dbus("org.freedesktop.Notifications", "/org/freedesktop/Notifications", "org.freedesktop.Notifications", QDBusConnection::sessionBus());
         QVariantList args;
-        args.append("qupzilla");
+        args.append(QLatin1String("qupzilla"));
         args.append(m_uint);
         args.append(tmp.fileName());
         args.append(heading);
@@ -111,7 +111,7 @@ void DesktopNotificationsFactory::nativeNotificationPreview()
 
     QDBusInterface dbus("org.freedesktop.Notifications", "/org/freedesktop/Notifications", "org.freedesktop.Notifications", QDBusConnection::sessionBus());
     QVariantList args;
-    args.append("qupzilla");
+    args.append(QLatin1String("qupzilla"));
     args.append(m_uint);
     args.append(tmp.fileName());
     args.append(QObject::tr("Native System Notification"));

src/lib/downloads/downloadfilehelper.cpp

@@ -205,7 +205,7 @@ void DownloadFileHelper::fileNameChoosed(const QString &name, bool fileNameAutoG
     }
 
 
-    int pos = m_userFileName.lastIndexOf("/");
+    int pos = m_userFileName.lastIndexOf(QLatin1Char('/'));
     if (pos != -1) {
         int size = m_userFileName.size();
         m_path = m_userFileName.left(pos + 1);
@@ -254,7 +254,7 @@ QString DownloadFileHelper::getFileName(QNetworkReply* reply)
             reg.indexIn(value);
             path = reg.cap(1).trimmed();
 
-            if (path.startsWith('"') && path.endsWith('"')) {
+            if (path.startsWith(QLatin1Char('"')) && path.endsWith(QLatin1Char('"'))) {
                 path = path.mid(1, path.length() - 2);
             }
         }
@@ -273,13 +273,13 @@ QString DownloadFileHelper::getFileName(QNetworkReply* reply)
     }
 
     if (!endName.isEmpty()) {
-        endName.prepend(".");
+        endName.prepend(QLatin1Char('.'));
     }
 
     QString name = baseName + endName;
 
-    if (name.contains('"')) {
-        name.remove("\";");
+    if (name.contains(QLatin1Char('"'))) {
+        name.remove(QLatin1String("\";"));
     }
 
     return qz_filterCharsFromFilename(name);

src/lib/downloads/downloaditem.cpp

@@ -368,7 +368,7 @@ void DownloadItem::openFolder()
 {
 #ifdef Q_OS_WIN
     QString winFileName = m_path + m_fileName;
-    winFileName.replace("/", "\\");
+    winFileName.replace(QLatin1Char('/'), "\\");
     QProcess::startDetached("explorer.exe /e,/select,\"" + winFileName + "\"");
 #else
     QDesktopServices::openUrl(QUrl::fromLocalFile(m_path));

src/lib/downloads/downloadmanager.cpp

@@ -68,7 +68,7 @@ void DownloadManager::loadSettings()
     Settings settings;
     settings.beginGroup("DownloadManager");
     m_downloadPath = settings.value("defaultDownloadPath", QString()).toString();
-    m_lastDownloadPath = settings.value("lastDownloadPath", QDir::homePath().append("/")).toString();
+    m_lastDownloadPath = settings.value("lastDownloadPath", QDir::homePath().append(QLatin1Char('/'))).toString();
     m_closeOnFinish = settings.value("CloseManagerOnFinish", false).toBool();
     m_useNativeDialog = settings.value("useNativeDialog", DEFAULT_DOWNLOAD_USE_NATIVE_DIALOG).toBool();
 
@@ -102,7 +102,7 @@ void DownloadManager::keyPressEvent(QKeyEvent* e)
 
 void DownloadManager::startExternalManager(const QUrl &url)
 {
-    QStringList arguments = m_externalArguments.split(' ', QString::SkipEmptyParts);
+    QStringList arguments = m_externalArguments.split(QLatin1Char(' '), QString::SkipEmptyParts);
     arguments << url.toString();
 
     bool success = QProcess::startDetached(m_externalExecutable, arguments);
@@ -210,7 +210,7 @@ void DownloadManager::download(const QNetworkRequest &request, const DownloadInf
 
 void DownloadManager::handleUnsupportedContent(QNetworkReply* reply, const DownloadInfo &info)
 {
-    if (!info.page || reply->url().scheme() == "qupzilla") {
+    if (!info.page || reply->url().scheme() == QLatin1String("qupzilla")) {
         return;
     }
 

src/lib/history/history.cpp

@@ -68,7 +68,7 @@ void History::addHistoryEntry(const QUrl &url, QString title)
     if (!m_isSaving) {
         return;
     }
-    if (url.scheme() == "qupzilla" || url.scheme() == "about" || url.isEmpty()) {
+    if (url.scheme() == QLatin1String("qupzilla") || url.scheme() == QLatin1String("about") || url.isEmpty()) {
         return;
     }
     if (title.isEmpty()) {

src/lib/navigation/completer/locationcompleterdelegate.cpp

@@ -129,7 +129,7 @@ void LocationCompleterDelegate::drawHighlightedTextLine(const QRect &rect, QStri
         const QPalette::ColorRole &role) const
 {
     QList<int> delimiters;
-    QStringList searchStrings = searchText.split(' ', QString::SkipEmptyParts);
+    QStringList searchStrings = searchText.split(QLatin1Char(' '), QString::SkipEmptyParts);
 
     // Look for longer parts first
     qSort(searchStrings.begin(), searchStrings.end(), sizeBiggerThan);

src/lib/navigation/completer/locationcompletermodel.cpp

@@ -133,23 +133,23 @@ QSqlQuery LocationCompleterModel::createQuery(const QString &searchString, const
     QStringList searchList;
 
     if (bookmarks) {
-        query.append(", bookmarks.icon FROM bookmarks LEFT JOIN history ON bookmarks.url=history.url ");
+        query.append(QLatin1String(", bookmarks.icon FROM bookmarks LEFT JOIN history ON bookmarks.url=history.url "));
     }
     else {
-        query.append(" FROM history ");
+        query.append(QLatin1String(" FROM history "));
     }
 
-    query.append("WHERE ");
+    query.append(QLatin1String("WHERE "));
     if (exactMatch) {
         query.append(QString("%1.title LIKE ? OR %1.url LIKE ? ").arg(table));
     }
     else {
-        searchList = searchString.split(' ', QString::SkipEmptyParts);
+        searchList = searchString.split(QLatin1Char(' '), QString::SkipEmptyParts);
         const int slSize = searchList.size();
         for (int i = 0; i < slSize; ++i) {
             query.append(QString("(%1.title LIKE ? OR %1.url LIKE ?) ").arg(table));
             if (i < slSize - 1) {
-                query.append("AND ");
+                query.append(QLatin1String("AND "));
             }
         }
     }
@@ -162,7 +162,7 @@ QSqlQuery LocationCompleterModel::createQuery(const QString &searchString, const
         query.append("ORDER BY " + orderBy);
     }
 
-    query.append(" LIMIT ?");
+    query.append(QLatin1String(" LIMIT ?"));
 
     QSqlQuery sqlQuery;
     sqlQuery.prepare(query);

src/lib/navigation/locationbar.cpp

@@ -125,14 +125,14 @@ QUrl LocationBar::createUrl()
     QUrl urlToLoad;
 
     //Check for Search Engine shortcut
-    int firstSpacePos = text().indexOf(' ');
+    int firstSpacePos = text().indexOf(QLatin1Char(' '));
     if (firstSpacePos != -1) {
         QString shortcut = text().left(firstSpacePos);
         QString searchedString = QUrl::toPercentEncoding(text().mid(firstSpacePos).trimmed());
 
         SearchEngine en = mApp->searchEnginesManager()->engineForShortcut(shortcut);
         if (!en.name.isEmpty()) {
-            urlToLoad = QUrl::fromEncoded(en.url.replace("%s", searchedString).toUtf8());
+            urlToLoad = QUrl::fromEncoded(en.url.replace(QLatin1String("%s"), searchedString).toUtf8());
         }
     }
 
@@ -214,7 +214,7 @@ void LocationBar::showSiteInfo()
 {
     QUrl url = p_QupZilla->weView()->url();
 
-    if (url.isEmpty() || url.scheme() == "qupzilla") {
+    if (url.isEmpty() || url.scheme() == QLatin1String("qupzilla")) {
         return;
     }
 
@@ -243,7 +243,7 @@ void LocationBar::showUrl(const QUrl &url)
 
     QString stringUrl = qz_urlEncodeQueryString(url);
 
-    if (stringUrl == "qupzilla:speeddial" || stringUrl == "about:blank") {
+    if (stringUrl == QLatin1String("qupzilla:speeddial") || stringUrl == QLatin1String("about:blank")) {
         stringUrl = "";
     }
 
@@ -452,7 +452,7 @@ void LocationBar::keyPressEvent(QKeyEvent* event)
     case Qt::Key_Enter:
         switch (event->modifiers()) {
         case Qt::ControlModifier:
-            setText(text().append(".com"));
+            setText(text().append(QLatin1String(".com")));
             urlEnter();
             m_holdingAlt = false;
             break;
@@ -498,7 +498,7 @@ void LocationBar::keyReleaseEvent(QKeyEvent* event)
     QString localDomain = tr(".co.uk", "Append domain name on ALT + Enter = Should be different for every country");
 
     if (event->key() == Qt::Key_Alt && m_holdingAlt && qzSettings->addCountryWithAlt &&
-            !text().endsWith(localDomain) && !text().endsWith("/")) {
+            !text().endsWith(localDomain) && !text().endsWith(QLatin1Char('/'))) {
         LineEdit::setText(text().append(localDomain));
     }
 

src/lib/navigation/navigationbar.cpp

@@ -53,7 +53,7 @@ QString titleForUrl(QString title, const QUrl &url)
 QIcon iconForPage(const QUrl &url, const QIcon &sIcon)
 {
     QIcon icon;
-    icon.addPixmap(url.scheme() == "qupzilla" ? QIcon(":icons/qupzilla.png").pixmap(16, 16) : _iconForUrl(url).pixmap(16, 16));
+    icon.addPixmap(url.scheme() == QLatin1String("qupzilla") ? QIcon(":icons/qupzilla.png").pixmap(16, 16) : _iconForUrl(url).pixmap(16, 16));
     icon.addPixmap(sIcon.pixmap(16, 16), QIcon::Active);
     return icon;
 }

src/lib/network/networkmanager.cpp

@@ -52,8 +52,8 @@
 QString fileNameForCert(const QSslCertificate &cert)
 {
     QString certFileName = CertificateInfoWidget::certificateItemText(cert);
-    certFileName.remove(' ');
-    certFileName.append(".crt");
+    certFileName.remove(QLatin1Char(' '));
+    certFileName.append(QLatin1String(".crt"));
     certFileName = qz_filterCharsFromFilename(certFileName);
     return certFileName;
 }
@@ -499,7 +499,7 @@ void NetworkManager::loadCertificates()
         QDirIterator it(path, QDir::Files, QDirIterator::FollowSymlinks | QDirIterator::Subdirectories);
         while (it.hasNext()) {
             QString filePath = it.next();
-            if (!filePath.endsWith(".crt")) {
+            if (!filePath.endsWith(QLatin1String(".crt"))) {
                 continue;
             }
 
@@ -517,7 +517,7 @@ void NetworkManager::loadCertificates()
     QDirIterator it_(mApp->currentProfilePath() + "certificates", QDir::Files, QDirIterator::FollowSymlinks | QDirIterator::Subdirectories);
     while (it_.hasNext()) {
         QString filePath = it_.next();
-        if (!filePath.endsWith(".crt")) {
+        if (!filePath.endsWith(QLatin1String(".crt"))) {
             continue;
         }
 

src/lib/network/networkproxyfactory.cpp

@@ -66,7 +66,7 @@ QList<QNetworkProxy> NetworkProxyFactory::queryProxy(const QNetworkProxyQuery &q
     case DefinedProxy:
         proxy = m_proxyType;
 
-        if (m_useDifferentProxyForHttps && query.protocolTag() == "https") {
+        if (m_useDifferentProxyForHttps && query.protocolTag() == QLatin1String("https")) {
             proxy.setHostName(m_httpsHostName);
             proxy.setPort(m_httpsPort);
             proxy.setUser(m_httpsUsername);

src/lib/network/schemehandlers/adblockschemehandler.cpp

@@ -43,10 +43,10 @@ QNetworkReply* AdBlockSchemeHandler::createRequest(QNetworkAccessManager::Operat
 
     for (int i = 0; i < queryItems.count(); ++i) {
         QPair<QString, QString> pair = queryItems.at(i);
-        if (pair.first == "location") {
+        if (pair.first == QLatin1String("location")) {
             subscriptionUrl = pair.second;
         }
-        else if (pair.first == "title") {
+        else if (pair.first == QLatin1String("title")) {
             subscriptionTitle = pair.second;
         }
     }

src/lib/network/schemehandlers/fileschemehandler.cpp

@@ -143,57 +143,57 @@ QString FileSchemeReply::loadDirectory()
 
     if (sPage.isEmpty()) {
         sPage = qz_readAllFileContents(":/html/dirlist.html");
-        sPage.replace("%BOX-BORDER%", "qrc:html/box-border.png");
-        sPage.replace("%UP-IMG%", qz_pixmapToByteArray(qIconProvider->standardIcon(QStyle::SP_FileDialogToParent).pixmap(22)));
-        sPage.replace("%UP-DIR-TEXT%", tr("Up to higher level directory"));
-        sPage.replace("%SHOW-HIDDEN-TEXT%", tr("Show hidden files"));
-        sPage.replace("%NAME%", tr("Name"));
-        sPage.replace("%SIZE%", tr("Size"));
-        sPage.replace("%MODIFIED%", tr("Last modified"));
+        sPage.replace(QLatin1String("%BOX-BORDER%"), QLatin1String("qrc:html/box-border.png"));
+        sPage.replace(QLatin1String("%UP-IMG%"), qz_pixmapToByteArray(qIconProvider->standardIcon(QStyle::SP_FileDialogToParent).pixmap(22)));
+        sPage.replace(QLatin1String("%UP-DIR-TEXT%"), tr("Up to higher level directory"));
+        sPage.replace(QLatin1String("%SHOW-HIDDEN-TEXT%"), tr("Show hidden files"));
+        sPage.replace(QLatin1String("%NAME%"), tr("Name"));
+        sPage.replace(QLatin1String("%SIZE%"), tr("Size"));
+        sPage.replace(QLatin1String("%MODIFIED%"), tr("Last modified"));
         sPage = qz_applyDirectionToPage(sPage);
     }
 
     QString page = sPage;
-    page.replace("%TITLE%", tr("Index for %1").arg(request().url().toLocalFile()));
+    page.replace(QLatin1String("%TITLE%"), tr("Index for %1").arg(request().url().toLocalFile()));
 
-    QString upDirDisplay = "none";
-    QString showHiddenDisplay = "none";
+    QString upDirDisplay = QLatin1String("none");
+    QString showHiddenDisplay = QLatin1String("none");
     QString tBody;
 
     if (!dir.isRoot()) {
         QDir upDir = dir;
         upDir.cdUp();
 
-        upDirDisplay = "inline";
-        page.replace("%UP-DIR-LINK%", QUrl::fromLocalFile(upDir.absolutePath()).toEncoded());
+        upDirDisplay = QLatin1String("inline");
+        page.replace(QLatin1String("%UP-DIR-LINK%"), QUrl::fromLocalFile(upDir.absolutePath()).toEncoded());
     }
 
     foreach(const QFileInfo & info, list) {
-        if (info.fileName() == "." || info.fileName() == "..") {
+        if (info.fileName() == QLatin1String(".") || info.fileName() == QLatin1String("..")) {
             continue;
         }
 
-        QString line = "<tr";
+        QString line = QLatin1String("<tr");
 
         if (info.isHidden()) {
             showHiddenDisplay = "inline";
             line += " class=\"tr-hidden\"";
         }
 
-        line += "><td class=\"td-name\" style=\"background-image:url(data:image/png;base64,";
+        line += QLatin1String("><td class=\"td-name\" style=\"background-image:url(data:image/png;base64,");
         line += qz_pixmapToByteArray(QFileIconProvider().icon(info).pixmap(16));
-        line += ");\">";
-        line += "<a href=\"";
+        line += QLatin1String(");\">");
+        line += QLatin1String("<a href=\"");
         line += QUrl::fromLocalFile(info.absoluteFilePath()).toEncoded();
-        line += "\">";
+        line += QLatin1String("\">");
         line += info.fileName();
-        line += "</a></td><td class=\"td-size\">";
+        line += QLatin1String("</a></td><td class=\"td-size\">");
         line += info.isDir() ? QString() : qz_fileSizeToString(info.size());
-        line += "</td><td>";
+        line += QLatin1String("</td><td>");
         line += info.lastModified().toString("dd.MM.yyyy");
-        line += "</td><td>";
+        line += QLatin1String("</td><td>");
         line += info.lastModified().toString("hh:mm:ss");
-        line += "</td></tr>\n";
+        line += QLatin1String("</td></tr>\n");
 
         tBody.append(line);
     }
@@ -202,9 +202,9 @@ QString FileSchemeReply::loadDirectory()
         tBody = QString("<tr><td colspan='4'>%1</td></tr>").arg(tr("Folder is empty."));
     }
 
-    page.replace("%T-BODY%", tBody);
-    page.replace("%UP-DIR-DISPLAY%", upDirDisplay);
-    page.replace("%SHOW-HIDDEN-DISPLAY%", showHiddenDisplay);
+    page.replace(QLatin1String("%T-BODY%"), tBody);
+    page.replace(QLatin1String("%UP-DIR-DISPLAY%"), upDirDisplay);
+    page.replace(QLatin1String("%SHOW-HIDDEN-DISPLAY%"), showHiddenDisplay);
 
     return page;
 }

src/lib/network/schemehandlers/qupzillaschemehandler.cpp

@@ -82,22 +82,22 @@ void QupZillaSchemeReply::loadPage()
     QTextStream stream(&m_buffer);
     stream.setCodec("UTF-8");
 
-    if (m_pageName == "about") {
+    if (m_pageName == QLatin1String("about")) {
         stream << aboutPage();
     }
-    else if (m_pageName == "reportbug") {
+    else if (m_pageName == QLatin1String("reportbug")) {
         stream << reportbugPage();
     }
-    else if (m_pageName == "start") {
+    else if (m_pageName == QLatin1String("start")) {
         stream << startPage();
     }
-    else if (m_pageName == "speeddial") {
+    else if (m_pageName == QLatin1String("speeddial")) {
         stream << speeddialPage();
     }
-    else if (m_pageName == "config") {
+    else if (m_pageName == QLatin1String("config")) {
         stream << configPage();
     }
-    else if (m_pageName == "restore") {
+    else if (m_pageName == QLatin1String("restore")) {
         stream << restorePage();
     }
 
@@ -140,19 +140,19 @@ QString QupZillaSchemeReply::reportbugPage()
     }
 
     bPage.append(qz_readAllFileContents(":html/reportbug.html"));
-    bPage.replace("%FAVICON%", "qrc:icons/qupzilla.png");
-    bPage.replace("%BOX-BORDER%", "qrc:html/box-border.png");
+    bPage.replace(QLatin1String("%FAVICON%"), QLatin1String("qrc:icons/qupzilla.png"));
+    bPage.replace(QLatin1String("%BOX-BORDER%"), QLatin1String("qrc:html/box-border.png"));
 
-    bPage.replace("%TITLE%", tr("Report Issue"));
-    bPage.replace("%REPORT-ISSUE%", tr("Report Issue"));
-    bPage.replace("%PLUGINS-TEXT%", tr("If you are experiencing problems with QupZilla, please try to disable"
+    bPage.replace(QLatin1String("%TITLE%"), tr("Report Issue"));
+    bPage.replace(QLatin1String("%REPORT-ISSUE%"), tr("Report Issue"));
+    bPage.replace(QLatin1String("%PLUGINS-TEXT%"), tr("If you are experiencing problems with QupZilla, please try to disable"
                                        " all extensions first. <br/>If this does not fix it, then please fill out this form: "));
-    bPage.replace("%EMAIL%", tr("Your E-mail"));
-    bPage.replace("%TYPE%", tr("Issue type"));
-    bPage.replace("%DESCRIPTION%", tr("Issue description"));
-    bPage.replace("%SEND%", tr("Send"));
-    bPage.replace("%E-MAIL-OPTIONAL%", tr("E-mail is optional<br/><b>Note: </b>Please read how to make a bug report <a href=%1>here</a> first.").arg("https://github.com/QupZilla/qupzilla/wiki/Bug-Reports target=_blank"));
-    bPage.replace("%FIELDS-ARE-REQUIRED%", tr("Please fill out all required fields!"));
+    bPage.replace(QLatin1String("%EMAIL%"), tr("Your E-mail"));
+    bPage.replace(QLatin1String("%TYPE%"), tr("Issue type"));
+    bPage.replace(QLatin1String("%DESCRIPTION%"), tr("Issue description"));
+    bPage.replace(QLatin1String("%SEND%"), tr("Send"));
+    bPage.replace(QLatin1String("%E-MAIL-OPTIONAL%"), tr("E-mail is optional<br/><b>Note: </b>Please read how to make a bug report <a href=%1>here</a> first.").arg("https://github.com/QupZilla/qupzilla/wiki/Bug-Reports target=_blank"));
+    bPage.replace(QLatin1String("%FIELDS-ARE-REQUIRED%"), tr("Please fill out all required fields!"));
     bPage = qz_applyDirectionToPage(bPage);
 
     return bPage;
@@ -167,16 +167,16 @@ QString QupZillaSchemeReply::startPage()
     }
 
     sPage.append(qz_readAllFileContents(":html/start.html"));
-    sPage.replace("%FAVICON%", "qrc:icons/qupzilla.png");
-    sPage.replace("%BOX-BORDER%", "qrc:html/box-border.png");
-    sPage.replace("%ABOUT-IMG%", "qrc:icons/other/about.png");
+    sPage.replace(QLatin1String("%FAVICON%"), QLatin1String("qrc:icons/qupzilla.png"));
+    sPage.replace(QLatin1String("%BOX-BORDER%"), QLatin1String("qrc:html/box-border.png"));
+    sPage.replace(QLatin1String("%ABOUT-IMG%"), QLatin1String("qrc:icons/other/about.png"));
 
-    sPage.replace("%TITLE%", tr("Start Page"));
-    sPage.replace("%BUTTON-LABEL%", tr("Search on Web"));
-    sPage.replace("%SEARCH-BY%", tr("Search results provided by DuckDuckGo"));
-    sPage.replace("%WWW%", QupZilla::WIKIADDRESS);
-    sPage.replace("%ABOUT-QUPZILLA%", tr("About QupZilla"));
-    sPage.replace("%PRIVATE-BROWSING%", mApp->isPrivateSession() ? tr("<h1>Private Browsing</h1>") : QString());
+    sPage.replace(QLatin1String("%TITLE%"), tr("Start Page"));
+    sPage.replace(QLatin1String("%BUTTON-LABEL%"), tr("Search on Web"));
+    sPage.replace(QLatin1String("%SEARCH-BY%"), tr("Search results provided by DuckDuckGo"));
+    sPage.replace(QLatin1String("%WWW%"), QupZilla::WIKIADDRESS);
+    sPage.replace(QLatin1String("%ABOUT-QUPZILLA%"), tr("About QupZilla"));
+    sPage.replace(QLatin1String("%PRIVATE-BROWSING%"), mApp->isPrivateSession() ? tr("<h1>Private Browsing</h1>") : QString());
     sPage = qz_applyDirectionToPage(sPage);
 
     return sPage;
@@ -188,27 +188,27 @@ QString QupZillaSchemeReply::aboutPage()
 
     if (aPage.isEmpty()) {
         aPage.append(qz_readAllFileContents(":html/about.html"));
-        aPage.replace("%FAVICON%", "qrc:icons/qupzilla.png");
-        aPage.replace("%BOX-BORDER%", "qrc:html/box-border.png");
-        aPage.replace("%ABOUT-IMG%", "qrc:icons/other/about.png");
-        aPage.replace("%COPYRIGHT-INCLUDE%", Qt::escape(qz_readAllFileContents(":html/copyright")));
+        aPage.replace(QLatin1String("%FAVICON%"), QLatin1String("qrc:icons/qupzilla.png"));
+        aPage.replace(QLatin1String("%BOX-BORDER%"), QLatin1String("qrc:html/box-border.png"));
+        aPage.replace(QLatin1String("%ABOUT-IMG%"), QLatin1String("qrc:icons/other/about.png"));
+        aPage.replace(QLatin1String("%COPYRIGHT-INCLUDE%"), Qt::escape(qz_readAllFileContents(":html/copyright")));
 
-        aPage.replace("%TITLE%", tr("About QupZilla"));
-        aPage.replace("%ABOUT-QUPZILLA%", tr("About QupZilla"));
-        aPage.replace("%INFORMATIONS-ABOUT-VERSION%", tr("Information about version"));
-        aPage.replace("%COPYRIGHT%", tr("Copyright"));
+        aPage.replace(QLatin1String("%TITLE%"), tr("About QupZilla"));
+        aPage.replace(QLatin1String("%ABOUT-QUPZILLA%"), tr("About QupZilla"));
+        aPage.replace(QLatin1String("%INFORMATIONS-ABOUT-VERSION%"), tr("Information about version"));
+        aPage.replace(QLatin1String("%COPYRIGHT%"), tr("Copyright"));
 
-        aPage.replace("%VERSION-INFO%",
+        aPage.replace(QLatin1String("%VERSION-INFO%"),
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Version"), QupZilla::VERSION
 #ifdef GIT_REVISION
                               + " (" + GIT_REVISION + ")"
 #endif
                                                           ) +
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("WebKit version"), QupZilla::WEBKITVERSION));
-        aPage.replace("%MAIN-DEVELOPER%", tr("Main developer"));
-        aPage.replace("%MAIN-DEVELOPER-TEXT%", authorString(QupZilla::AUTHOR.toUtf8(), "nowrep@gmail.com"));
-        aPage.replace("%CONTRIBUTORS%", tr("Contributors"));
-        aPage.replace("%CONTRIBUTORS-TEXT%",
+        aPage.replace(QLatin1String("%MAIN-DEVELOPER%"), tr("Main developer"));
+        aPage.replace(QLatin1String("%MAIN-DEVELOPER-TEXT%"), authorString(QupZilla::AUTHOR.toUtf8(), "nowrep@gmail.com"));
+        aPage.replace(QLatin1String("%CONTRIBUTORS%"), tr("Contributors"));
+        aPage.replace(QLatin1String("%CONTRIBUTORS-TEXT%"),
                       authorString("Mladen Pejaković", "pejakm@gmail.com") + "<br/>" +
                       authorString("Alexander Samilov", "alexsamilovskih@gmail.com") + "<br/>" +
                       authorString("Seyyed Razi Alavizadeh", "s.r.alavizadeh@gmail.com") + "<br/>" +
@@ -218,8 +218,8 @@ QString QupZillaSchemeReply::aboutPage()
                       authorString("Jan Rajnoha", "honza.rajny@hotmail.com")  + "<br/>" +
                       authorString("Daniele Cocca", "jmc@chakra-project.org")
                      );
-        aPage.replace("%TRANSLATORS%", tr("Translators"));
-        aPage.replace("%TRANSLATORS-TEXT%",
+        aPage.replace(QLatin1String("%TRANSLATORS%"), tr("Translators"));
+        aPage.replace(QLatin1String("%TRANSLATORS-TEXT%"),
                       authorString("Heimen Stoffels", "vistausss@gmail.com") + " (Dutch)<br/>" +
                       authorString("Peter Vacula", "pvacula1989@gmail.com") + " (Slovak)<br/>" +
                       authorString("Ján Ďanovský", "dagsoftware@yahoo.com") + " (Slovak)<br/>" +
@@ -260,53 +260,53 @@ QString QupZillaSchemeReply::speeddialPage()
 
     if (dPage.isEmpty()) {
         dPage.append(qz_readAllFileContents(":html/speeddial.html"));
-        dPage.replace("%FAVICON%", "qrc:icons/qupzilla.png");
-        dPage.replace("%IMG_PLUS%", "qrc:html/plus.png");
-        dPage.replace("%BOX-BORDER%", "qrc:html/box-border-small.png");
-        dPage.replace("%IMG_CLOSE%", "qrc:html/close.png");
-        dPage.replace("%IMG_EDIT%", "qrc:html/edit.png");
-        dPage.replace("%IMG_RELOAD%", "qrc:html/reload.png");
+        dPage.replace(QLatin1String("%FAVICON%"), QLatin1String("qrc:icons/qupzilla.png"));
+        dPage.replace(QLatin1String("%IMG_PLUS%"), QLatin1String("qrc:html/plus.png"));
+        dPage.replace(QLatin1String("%BOX-BORDER%"), QLatin1String("qrc:html/box-border-small.png"));
+        dPage.replace(QLatin1String("%IMG_CLOSE%"), QLatin1String("qrc:html/close.png"));
+        dPage.replace(QLatin1String("%IMG_EDIT%"), QLatin1String("qrc:html/edit.png"));
+        dPage.replace(QLatin1String("%IMG_RELOAD%"), QLatin1String("qrc:html/reload.png"));
+        dPage.replace(QLatin1String("%JQUERY%"), QLatin1String("qrc:html/jquery.js"));
+        dPage.replace(QLatin1String("%JQUERY-UI%"), QLatin1String("qrc:html/jquery-ui.js"));
+        dPage.replace(QLatin1String("%LOADING-IMG%"), QLatin1String("qrc:html/loading.gif"));
+        dPage.replace(QLatin1String("%IMG_SETTINGS%"), QLatin1String("qrc:html/setting.png"));
 
-        dPage.replace("%SITE-TITLE%", tr("Speed Dial"));
-        dPage.replace("%ADD-TITLE%", tr("Add New Page"));
-        dPage.replace("%TITLE-EDIT%", tr("Edit"));
-        dPage.replace("%TITLE-REMOVE%", tr("Remove"));
-        dPage.replace("%TITLE-RELOAD%", tr("Reload"));
-        dPage.replace("%TITLE-WARN%", tr("Are you sure to remove this speed dial?"));
-        dPage.replace("%TITLE-FETCHTITLE%", tr("Load title from page"));
-        dPage.replace("%JQUERY%", "qrc:html/jquery.js");
-        dPage.replace("%JQUERY-UI%", "qrc:html/jquery-ui.js");
-        dPage.replace("%LOADING-IMG%", "qrc:html/loading.gif");
-        dPage.replace("%URL%", tr("Url"));
-        dPage.replace("%TITLE%", tr("Title"));
-        dPage.replace("%APPLY%", tr("Apply"));
-        dPage.replace("%CLOSE%", tr("Close"));
-        dPage.replace("%NEW-PAGE%", tr("New Page"));
-        dPage.replace("%IMG_SETTINGS%", "qrc:html/setting.png");
-        dPage.replace("%SETTINGS-TITLE%", tr("Speed Dial settings"));
-        dPage.replace("%TXT_PLACEMENT%", tr("Placement: "));
-        dPage.replace("%TXT_AUTO%", tr("Auto"));
-        dPage.replace("%TXT_COVER%", tr("Cover"));
-        dPage.replace("%TXT_FIT%", tr("Fit"));
-        dPage.replace("%TXT_FWIDTH%", tr("Fit Width"));
-        dPage.replace("%TXT_FHEIGHT%", tr("Fit Height"));
-        dPage.replace("%TXT_NOTE%", tr("Use background image"));
-        dPage.replace("%TXT_SELECTIMAGE%", tr("Select image"));
-        dPage.replace("%TXT_NRROWS%", tr("Maximum pages in a row:"));
-        dPage.replace("%TXT_SDSIZE%", tr("Change size of pages:"));
-        dPage.replace("%TXT_CNTRDLS%", tr("Center speed dials"));
+        dPage.replace(QLatin1String("%SITE-TITLE%"), tr("Speed Dial"));
+        dPage.replace(QLatin1String("%ADD-TITLE%"), tr("Add New Page"));
+        dPage.replace(QLatin1String("%TITLE-EDIT%"), tr("Edit"));
+        dPage.replace(QLatin1String("%TITLE-REMOVE%"), tr("Remove"));
+        dPage.replace(QLatin1String("%TITLE-RELOAD%"), tr("Reload"));
+        dPage.replace(QLatin1String("%TITLE-WARN%"), tr("Are you sure to remove this speed dial?"));
+        dPage.replace(QLatin1String("%TITLE-FETCHTITLE%"), tr("Load title from page"));
+        dPage.replace(QLatin1String("%URL%"), tr("Url"));
+        dPage.replace(QLatin1String("%TITLE%"), tr("Title"));
+        dPage.replace(QLatin1String("%APPLY%"), tr("Apply"));
+        dPage.replace(QLatin1String("%CLOSE%"), tr("Close"));
+        dPage.replace(QLatin1String("%NEW-PAGE%"), tr("New Page"));
+        dPage.replace(QLatin1String("%SETTINGS-TITLE%"), tr("Speed Dial settings"));
+        dPage.replace(QLatin1String("%TXT_PLACEMENT%"), tr("Placement: "));
+        dPage.replace(QLatin1String("%TXT_AUTO%"), tr("Auto"));
+        dPage.replace(QLatin1String("%TXT_COVER%"), tr("Cover"));
+        dPage.replace(QLatin1String("%TXT_FIT%"), tr("Fit"));
+        dPage.replace(QLatin1String("%TXT_FWIDTH%"), tr("Fit Width"));
+        dPage.replace(QLatin1String("%TXT_FHEIGHT%"), tr("Fit Height"));
+        dPage.replace(QLatin1String("%TXT_NOTE%"), tr("Use background image"));
+        dPage.replace(QLatin1String("%TXT_SELECTIMAGE%"), tr("Select image"));
+        dPage.replace(QLatin1String("%TXT_NRROWS%"), tr("Maximum pages in a row:"));
+        dPage.replace(QLatin1String("%TXT_SDSIZE%"), tr("Change size of pages:"));
+        dPage.replace(QLatin1String("%TXT_CNTRDLS%"), tr("Center speed dials"));
         dPage = qz_applyDirectionToPage(dPage);
     }
 
     QString page = dPage;
     SpeedDial* dial = mApp->plugins()->speedDial();
 
-    page.replace("%INITIAL-SCRIPT%", dial->initialScript());
-    page.replace("%IMG_BACKGROUND%", dial->backgroundImage());
-    page.replace("%B_SIZE%", dial->backgroundImageSize());
-    page.replace("%ROW-PAGES%", QString::number(dial->pagesInRow()));
-    page.replace("%SD-SIZE%", QString::number(dial->sdSize()));
-    page.replace("%SD-CNTR%", QString::number(dial->sdCntr()));
+    page.replace(QLatin1String("%INITIAL-SCRIPT%"), dial->initialScript());
+    page.replace(QLatin1String("%IMG_BACKGROUND%"), dial->backgroundImage());
+    page.replace(QLatin1String("%B_SIZE%"), dial->backgroundImageSize());
+    page.replace(QLatin1String("%ROW-PAGES%"), QString::number(dial->pagesInRow()));
+    page.replace(QLatin1String("%SD-SIZE%"), QString::number(dial->sdSize()));
+    page.replace(QLatin1String("%SD-CNTR%"), QString::number(dial->sdCntr()));
 
     return page;
 }
@@ -317,16 +317,16 @@ QString QupZillaSchemeReply::restorePage()
 
     if (rPage.isEmpty()) {
         rPage.append(qz_readAllFileContents(":html/restore.html"));
-        rPage.replace("%FAVICON%", "qrc:icons/qupzilla.png");
-        rPage.replace("%BOX-BORDER%", "qrc:html/box-border.png");
-        rPage.replace("%IMAGE%", qz_pixmapToByteArray(qIconProvider->standardIcon(QStyle::SP_MessageBoxWarning).pixmap(45, 45)));
+        rPage.replace(QLatin1String("%FAVICON%"), QLatin1String("qrc:icons/qupzilla.png"));
+        rPage.replace(QLatin1String("%BOX-BORDER%"), QLatin1String("qrc:html/box-border.png"));
+        rPage.replace(QLatin1String("%IMAGE%"), qz_pixmapToByteArray(qIconProvider->standardIcon(QStyle::SP_MessageBoxWarning).pixmap(45, 45)));
 
 
-        rPage.replace("%TITLE%", tr("Restore Session"));
-        rPage.replace("%OOPS%", tr("Oops, QupZilla crashed."));
-        rPage.replace("%APOLOGIZE%", tr("We apologize for this. Would you like to restore the last saved state?"));
-        rPage.replace("%TRY-REMOVING%", tr("Try removing one or more tabs that you think cause troubles"));
-        rPage.replace("%START-NEW%", tr("Or you can start completely new session"));
+        rPage.replace(QLatin1String("%TITLE%"), tr("Restore Session"));
+        rPage.replace(QLatin1String("%OOPS%"), tr("Oops, QupZilla crashed."));
+        rPage.replace(QLatin1String("%APOLOGIZE%"), tr("We apologize for this. Would you like to restore the last saved state?"));
+        rPage.replace(QLatin1String("%TRY-REMOVING%"), tr("Try removing one or more tabs that you think cause troubles"));
+        rPage.replace(QLatin1String("%START-NEW%"), tr("Or you can start completely new session"));
         rPage = qz_applyDirectionToPage(rPage);
     }
 
@@ -339,27 +339,27 @@ QString QupZillaSchemeReply::configPage()
 
     if (cPage.isEmpty()) {
         cPage.append(qz_readAllFileContents(":html/config.html"));
-        cPage.replace("%FAVICON%", "qrc:icons/qupzilla.png");
-        cPage.replace("%BOX-BORDER%", "qrc:html/box-border.png");
-        cPage.replace("%ABOUT-IMG%", "qrc:icons/other/about.png");
+        cPage.replace(QLatin1String("%FAVICON%"), QLatin1String("qrc:icons/qupzilla.png"));
+        cPage.replace(QLatin1String("%BOX-BORDER%"), QLatin1String("qrc:html/box-border.png"));
+        cPage.replace(QLatin1String("%ABOUT-IMG%"), QLatin1String("qrc:icons/other/about.png"));
 
-        cPage.replace("%TITLE%", tr("Configuration Information"));
-        cPage.replace("%CONFIG%", tr("Configuration Information"));
-        cPage.replace("%INFORMATIONS-ABOUT-VERSION%", tr("Information about version"));
-        cPage.replace("%CONFIG-ABOUT%", tr("This page contains information about QupZilla's current configuration - relevant for troubleshooting. Please include this information when submitting bug reports."));
-        cPage.replace("%BROWSER-IDENTIFICATION%", tr("Browser Identification"));
-        cPage.replace("%PATHS%", tr("Paths"));
-        cPage.replace("%BUILD-CONFIG%", tr("Build Configuration"));
-        cPage.replace("%PREFS%", tr("Preferences"));
-        cPage.replace("%OPTION%", tr("Option"));
-        cPage.replace("%VALUE%", tr("Value"));
-        cPage.replace("%PLUGINS%", tr("Extensions"));
-        cPage.replace("%PL-NAME%", tr("Name"));
-        cPage.replace("%PL-VER%", tr("Version"));
-        cPage.replace("%PL-AUTH%", tr("Author"));
-        cPage.replace("%PL-DESC%", tr("Description"));
+        cPage.replace(QLatin1String("%TITLE%"), tr("Configuration Information"));
+        cPage.replace(QLatin1String("%CONFIG%"), tr("Configuration Information"));
+        cPage.replace(QLatin1String("%INFORMATIONS-ABOUT-VERSION%"), tr("Information about version"));
+        cPage.replace(QLatin1String("%CONFIG-ABOUT%"), tr("This page contains information about QupZilla's current configuration - relevant for troubleshooting. Please include this information when submitting bug reports."));
+        cPage.replace(QLatin1String("%BROWSER-IDENTIFICATION%"), tr("Browser Identification"));
+        cPage.replace(QLatin1String("%PATHS%"), tr("Paths"));
+        cPage.replace(QLatin1String("%BUILD-CONFIG%"), tr("Build Configuration"));
+        cPage.replace(QLatin1String("%PREFS%"), tr("Preferences"));
+        cPage.replace(QLatin1String("%OPTION%"), tr("Option"));
+        cPage.replace(QLatin1String("%VALUE%"), tr("Value"));
+        cPage.replace(QLatin1String("%PLUGINS%"), tr("Extensions"));
+        cPage.replace(QLatin1String("%PL-NAME%"), tr("Name"));
+        cPage.replace(QLatin1String("%PL-VER%"), tr("Version"));
+        cPage.replace(QLatin1String("%PL-AUTH%"), tr("Author"));
+        cPage.replace(QLatin1String("%PL-DESC%"), tr("Description"));
 
-        cPage.replace("%VERSION-INFO%",
+        cPage.replace(QLatin1String("%VERSION-INFO%"),
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Application version"), QupZilla::VERSION
 #ifdef GIT_REVISION
                               + " (" + GIT_REVISION + ")"
@@ -370,7 +370,7 @@ QString QupZillaSchemeReply::configPage()
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Build time"), QupZilla::BUILDTIME) +
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Platform"), qz_buildSystem()));
 
-        cPage.replace("%PATHS-TEXT%",
+        cPage.replace(QLatin1String("%PATHS-TEXT%"),
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Profile"), mApp->currentProfilePath()) +
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Settings"), mApp->currentProfilePath() + "settings.ini") +
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Saved session"), mApp->currentProfilePath() + "session.dat") +
@@ -401,7 +401,7 @@ QString QupZillaSchemeReply::configPage()
         portableBuild = tr("<b>Enabled</b>");
 #endif
 
-        cPage.replace("%BUILD-CONFIG-TEXT%",
+        cPage.replace(QLatin1String("%BUILD-CONFIG-TEXT%"),
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Debug build"), debugBuild) +
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("WebGL support"), webGLEnabled) +
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Windows 7 API"), w7APIEnabled) +
@@ -412,7 +412,7 @@ QString QupZillaSchemeReply::configPage()
     }
 
     QString page = cPage;
-    page.replace("%USER-AGENT%", mApp->getWindow()->weView()->page()->userAgentForUrl(QUrl()));
+    page.replace(QLatin1String("%USER-AGENT%"), mApp->getWindow()->weView()->page()->userAgentForUrl(QUrl()));
 
     QString pluginsString;
     const QList<Plugins::Plugin> &availablePlugins = mApp->plugins()->getAvailablePlugins();
@@ -427,7 +427,7 @@ QString QupZillaSchemeReply::configPage()
         pluginsString = QString("<tr><td colspan=4 class=\"no-available-plugins\">%1</td></tr>").arg(tr("No available extensions."));
     }
 
-    page.replace("%PLUGINS-INFO%", pluginsString);
+    page.replace(QLatin1String("%PLUGINS-INFO%"), pluginsString);
 
     QString allGroupsString;
     QSettings* settings = Settings::globalSettings();
@@ -441,7 +441,7 @@ QString QupZillaSchemeReply::configPage()
 
             switch (keyValue.type()) {
             case QVariant::ByteArray:
-                keyString = "QByteArray";
+                keyString = QLatin1String("QByteArray");
                 break;
 
             case QVariant::Point: {
@@ -459,7 +459,7 @@ QString QupZillaSchemeReply::configPage()
             }
 
             if (keyString.isEmpty()) {
-                keyString = "\"empty\"";
+                keyString = QLatin1String("\"empty\"");
             }
 
             groupString.append(QString("<tr><td>%1</td><td>%2</td></tr>").arg(key, Qt::escape(keyString)));
@@ -469,7 +469,7 @@ QString QupZillaSchemeReply::configPage()
         allGroupsString.append(groupString);
     }
 
-    page.replace("%PREFS-INFO%", allGroupsString);
+    page.replace(QLatin1String("%PREFS-INFO%"), allGroupsString);
 
     return page;
 }

src/lib/opensearch/opensearchengine.cpp

@@ -276,7 +276,7 @@ QUrl OpenSearchEngine::suggestionsUrl(const QString &searchTerm) const
 {
     if (!m_preparedSuggestionsUrl.isEmpty()) {
         QString s = m_preparedSuggestionsUrl;
-        s.replace("%s", searchTerm);
+        s.replace(QLatin1String("%s"), searchTerm);
         return QUrl(s);
     }
 
@@ -502,7 +502,7 @@ void OpenSearchEngine::setSuggestionsUrl(const QString &string)
 
 QString OpenSearchEngine::getSuggestionsUrl()
 {
-    return suggestionsUrl("searchstring").toString().replace("searchstring", "%s");
+    return suggestionsUrl("searchstring").toString().replace(QLatin1String("searchstring"), QLatin1String("%s"));
 }
 
 QByteArray OpenSearchEngine::getSuggestionsParameters()

src/lib/opensearch/searchenginesmanager.cpp

@@ -100,7 +100,7 @@ QUrl SearchEnginesManager::searchUrl(const Engine &engine, const QString &string
     ENSURE_LOADED;
 
     QByteArray url = engine.url.toUtf8();
-    url.replace("%s", QUrl::toPercentEncoding(string));
+    url.replace(QLatin1String("%s"), QUrl::toPercentEncoding(string));
     return QUrl::fromEncoded(url);
 }
 
@@ -195,7 +195,7 @@ void SearchEnginesManager::addEngineFromForm(const QWebElement &element, WebView
     QWebElement formElement = element.parent();
 
     while (!formElement.isNull()) {
-        if (formElement.tagName().toLower() == "form") {
+        if (formElement.tagName().toLower() == QLatin1String("form")) {
             break;
         }
 
@@ -262,7 +262,7 @@ void SearchEnginesManager::addEngine(OpenSearchEngine* engine)
 
     Engine en;
     en.name = engine->name();
-    en.url = engine->searchUrl("searchstring").toString().replace("searchstring", "%s");
+    en.url = engine->searchUrl("searchstring").toString().replace(QLatin1String("searchstring"), QLatin1String("%s"));
     if (engine->image().isNull()) {
         en.icon = iconForSearchEngine(engine->searchUrl(QString()));
     }

src/lib/other/pagescreen.cpp

@@ -58,8 +58,8 @@ void PageScreen::dialogAccepted()
                    suggestedPath);
 
     if (!path.isEmpty()) {
-        if (!path.endsWith(".png", Qt::CaseInsensitive)) {
-            path.append(".png");
+        if (!path.endsWith(QLatin1String(".png"), Qt::CaseInsensitive)) {
+            path.append(QLatin1String(".png"));
         }
 
         m_pageImage.save(path, "PNG");

src/lib/other/updater.cpp

@@ -38,12 +38,12 @@ Updater::Version Updater::parseVersionFromString(const QString &string)
     Version ver;
     ver.isValid = false;
 
-    QStringList v = string.split('.');
+    QStringList v = string.split(QLatin1Char('.'));
     if (v.count() != 3) {
         return ver;
     }
 
-    QStringList r = v.at(2).split('.');
+    QStringList r = v.at(2).split(QLatin1Char('.'));
 
     ver.majorVersion = v.at(0).toInt();
     ver.minorVersion = v.at(1).toInt();
@@ -58,11 +58,11 @@ Updater::Version Updater::parseVersionFromString(const QString &string)
 
 bool Updater::isBiggerThan_SpecialSymbol(QString one, QString two)
 {
-    if (one.contains("rc") && two.contains('b')) {
+    if (one.contains(QLatin1String("rc")) && two.contains(QLatin1Char('b'))) {
         return true;
     }
 
-    if (one.contains("b") && two.contains("rc")) {
+    if (one.contains(QLatin1Char('b')) && two.contains(QLatin1String("rc"))) {
         return false;
     }
 
@@ -74,16 +74,16 @@ bool Updater::isBiggerThan_SpecialSymbol(QString one, QString two)
         return false;
     }
 
-    if (one.contains('b')) {
-        int o = one.remove('b').toInt();
-        int t = two.remove('b').toInt();
+    if (one.contains(QLatin1Char('b'))) {
+        int o = one.remove(QLatin1Char('b')).toInt();
+        int t = two.remove(QLatin1Char('b')).toInt();
 
         return o > t;
     }
 
-    if (one.contains("rc")) {
-        int o = one.remove("rc").toInt();
-        int t = two.remove("rc").toInt();
+    if (one.contains(QLatin1String("rc"))) {
+        int o = one.remove(QLatin1String("rc")).toInt();
+        int t = two.remove(QLatin1String("rc")).toInt();
 
         return o > t;
     }
@@ -108,8 +108,8 @@ void Updater::downCompleted(QNetworkReply* reply)
 {
     QString html = reply->readAll();
 
-    if (html.startsWith("Version:")) {
-        html.remove("Version:");
+    if (html.startsWith(QLatin1String("Version:"))) {
+        html.remove(QLatin1String("Version:"));
         Version current = parseVersionFromString(QupZilla::VERSION);
         Version updated = parseVersionFromString(html);
 

src/lib/other/useragentmanager.cpp

@@ -61,7 +61,7 @@ QString UserAgentManager::userAgentForUrl(const QUrl &url) const
         }
     }
 
-    if (host.contains("google")) {
+    if (host.contains(QLatin1String("google"))) {
         return m_fakeUserAgent;
     }
 

src/lib/plugins/speeddial.cpp

@@ -236,7 +236,7 @@ void SpeedDial::changed(const QString &allPages)
         return;
     }
 
-    const QStringList &entries = allPages.split("\";");
+    const QStringList &entries = allPages.split(QLatin1String("\";"));
     m_webPages.clear();
 
     foreach(const QString & entry, entries) {
@@ -244,7 +244,7 @@ void SpeedDial::changed(const QString &allPages)
             continue;
         }
 
-        const QStringList &tmp = entry.split("\"|");
+        const QStringList &tmp = entry.split(QLatin1String("\"|"));
         if (tmp.count() != 2) {
             continue;
         }
@@ -365,15 +365,15 @@ void SpeedDial::thumbnailCreated(const QPixmap &pixmap)
 
 QString SpeedDial::escapeTitle(QString title) const
 {
-    title.replace('"', """);
-    title.replace('\'', "'");
+    title.replace(QLatin1Char('"'), QLatin1String("""));
+    title.replace(QLatin1Char('\''), QLatin1String("'"));
     return title;
 }
 
 QString SpeedDial::escapeUrl(QString url) const
 {
-    url.remove('"');
-    url.remove('\'');
+    url.remove(QLatin1Char('"'));
+    url.remove(QLatin1Char('\''));
     return url;
 }
 

src/lib/plugins/webpluginfactory.cpp

@@ -39,7 +39,7 @@ QObject* WebPluginFactory::create(const QString &mimeType, const QUrl &url, cons
 
     QString mime = mimeType.trimmed(); //Fixing bad behaviour when mimeType contains spaces
     if (mime.isEmpty()) {
-        if (url.toString().endsWith(".swf")) {
+        if (url.toString().endsWith(QLatin1String(".swf"))) {
             mime = "application/x-shockwave-flash";
         }
         else {
@@ -68,7 +68,7 @@ QObject* WebPluginFactory::create(const QString &mimeType, const QUrl &url, cons
 
     // Click2Flash whitelist
     QStringList whitelist = mApp->plugins()->c2f_getWhiteList();
-    if (whitelist.contains(url.host()) || whitelist.contains("www." + url.host()) || whitelist.contains(url.host().remove("www."))) {
+    if (whitelist.contains(url.host()) || whitelist.contains("www." + url.host()) || whitelist.contains(url.host().remove(QLatin1String("www.")))) {
         return 0;
     }
 

src/lib/preferences/acceptlanguage.cpp

@@ -41,7 +41,7 @@
 
 QStringList AcceptLanguage::defaultLanguage()
 {
-    return QStringList(QLocale::system().name().replace("_", "-"));
+    return QStringList(QLocale::system().name().replace(QLatin1Char('_'), QLatin1Char('-')));
 }
 
 QByteArray AcceptLanguage::generateHeader(const QStringList &langs)
@@ -63,7 +63,7 @@ QByteArray AcceptLanguage::generateHeader(const QStringList &langs)
 
         header.append(s);
     }
-    header.append(", *");
+    header.append(QLatin1String(", *"));
 
     return header;
 }
@@ -80,7 +80,7 @@ AcceptLanguage::AcceptLanguage(QWidget* parent)
 
     foreach(const QString & code, langs) {
         QString code_ = code;
-        QLocale loc = QLocale(code_.replace('-', '_'));
+        QLocale loc = QLocale(code_.replace(QLatin1Char('-'), QLatin1Char('_')));
         QString label;
 
         if (loc.language() == QLocale::C) {
@@ -202,8 +202,8 @@ void AcceptLanguage::accept()
     QStringList langs;
     for (int i = 0; i < ui->listWidget->count(); i++) {
         QString t = ui->listWidget->item(i)->text();
-        QString code = t.mid(t.indexOf('[') + 1);
-        code.remove(']');
+        QString code = t.mid(t.indexOf(QLatin1Char('[')) + 1);
+        code.remove(QLatin1Char(']'));
         langs.append(code);
     }
 

src/lib/preferences/preferences.cpp

@@ -59,7 +59,7 @@ Preferences::Preferences(QupZilla* mainClass, QWidget* parent)
     setAttribute(Qt::WA_DeleteOnClose);
     ui->setupUi(this);
 
-    if (mApp->currentStyle() == "oxygen") {
+    if (mApp->currentStyle() == QLatin1String("oxygen")) {
         ui->listWidget->item(0)->setIcon(QIcon::fromTheme("preferences-desktop", QIcon(":/icons/preferences/preferences-desktop.png")));
         ui->listWidget->item(1)->setIcon(QIcon::fromTheme("format-stroke-color", QIcon(":/icons/preferences/application-x-theme.png")));
         ui->listWidget->item(2)->setIcon(QIcon::fromTheme("tab-new-background", QIcon(":/icons/preferences/applications-internet.png")));
@@ -106,7 +106,7 @@ Preferences::Preferences(QupZilla* mainClass, QWidget* parent)
     else if (m_newTabUrl == m_homepage) {
         ui->newTab->setCurrentIndex(1);
     }
-    else if (m_newTabUrl == "qupzilla:speeddial") {
+    else if (m_newTabUrl == QLatin1String("qupzilla:speeddial")) {
         ui->newTab->setCurrentIndex(2);
     }
     else {
@@ -123,8 +123,8 @@ Preferences::Preferences(QupZilla* mainClass, QWidget* parent)
     //PROFILES
     m_actProfileName = mApp->currentProfilePath();
     m_actProfileName = m_actProfileName.left(m_actProfileName.length() - 1);
-    m_actProfileName = m_actProfileName.mid(m_actProfileName.lastIndexOf("/"));
-    m_actProfileName.remove('/');
+    m_actProfileName = m_actProfileName.mid(m_actProfileName.lastIndexOf(QLatin1Char('/')));
+    m_actProfileName.remove(QLatin1Char('/'));
 
     ui->activeProfile->setText("<b>" + m_actProfileName + "</b>");
 
@@ -343,12 +343,12 @@ Preferences::Preferences(QupZilla* mainClass, QWidget* parent)
     QDir lanDir(mApp->TRANSLATIONSDIR);
     QStringList list = lanDir.entryList(QStringList("*.qm"));
     foreach(const QString & name, list) {
-        if (name.startsWith("qt_")) {
+        if (name.startsWith(QLatin1String("qt_"))) {
             continue;
         }
 
         QString loc = name;
-        loc.remove(".qm");
+        loc.remove(QLatin1String(".qm"));
 
         if (loc == activeLanguage) {
             continue;
@@ -477,9 +477,9 @@ void Preferences::chooseDownPath()
         return;
     }
 #ifdef Q_OS_WIN   //QFileDialog::getExistingDirectory returns path with \ instead of / (??)
-    userFileName.replace('\\', '/');
+    userFileName.replace(QLatin1Char('\\'), QLatin1Char('/'));
 #endif
-    userFileName += "/";
+    userFileName += QLatin1Char('/');
 
     ui->downLoc->setText(userFileName);
 }
@@ -913,7 +913,7 @@ void Preferences::saveSettings()
     settings.setValue("HttpsUsername", ui->httpsProxyUsername->text());
     settings.setValue("HttpsPassword", ui->httpsProxyPassword->text());
 
-    settings.setValue("ProxyExceptions", ui->proxyExceptions->text().split(','));
+    settings.setValue("ProxyExceptions", ui->proxyExceptions->text().split(QLatin1Char(',')));
     settings.endGroup();
 
     //Profiles

src/lib/rss/rssmanager.cpp

@@ -339,13 +339,13 @@ void RSSManager::finished()
     while (!xml.atEnd()) {
         xml.readNext();
         if (xml.isStartElement()) {
-            if (xml.name() == "item") {
+            if (xml.name() == QLatin1String("item")) {
                 linkString = xml.attributes().value("rss:about").toString();
             }
             currentTag = xml.qualifiedName().toString();
         }
         else if (xml.isEndElement()) {
-            if (xml.qualifiedName() == "item") {
+            if (xml.qualifiedName() == QLatin1String("item")) {
                 QTreeWidgetItem* item = new QTreeWidgetItem;
                 item->setText(0, titleString);
                 item->setIcon(0, QIcon(":/icons/other/feed.png"));
@@ -357,10 +357,10 @@ void RSSManager::finished()
             }
         }
         else if (xml.isCharacters() && !xml.isWhitespace()) {
-            if (currentTag == "title") {
+            if (currentTag == QLatin1String("title")) {
                 titleString = xml.text().toString();
             }
-            else if (currentTag == "link") {
+            else if (currentTag == QLatin1String("link")) {
                 linkString += xml.text().toString();
             }
         }

src/lib/rss/rssnotification.cpp

@@ -112,10 +112,10 @@ void RSSNotification::addRss()
 
     case DesktopApplication: {
         const RssApp &app = m_rssApps.at(index);
-        if (app.title == "Akregator") {
+        if (app.title == QLatin1String("Akregator")) {
             success = startExternalProcess("/usr/bin/akregator", QStringList() << "-a" << m_url.toEncoded());
         }
-        else if (app.title == "Liferea") {
+        else if (app.title == QLatin1String("Liferea")) {
             if (!ProcessInfo("liferea").isRunning()) {
                 QMessageBox::warning(this, tr("Liferea not running"), tr("Liferea must be running in order to add new feed."));
                 success = false;

src/lib/sidebar/bookmarkssidebar.cpp

@@ -163,7 +163,7 @@ void BookmarksSideBar::addBookmark(const BookmarksModel::Bookmark &bookmark)
 
 void BookmarksSideBar::removeBookmark(const BookmarksModel::Bookmark &bookmark)
 {
-    if (bookmark.folder == "unsorted") {
+    if (bookmark.folder == QLatin1String("unsorted")) {
         QList<QTreeWidgetItem*> list = ui->bookmarksTree->findItems(bookmark.title, Qt::MatchExactly);
         if (list.count() == 0) {
             return;
@@ -280,10 +280,10 @@ void BookmarksSideBar::refreshTable()
         QString folder = query.value(3).toString();
         QIcon icon = qIconProvider->iconFromImage(QImage::fromData(query.value(4).toByteArray()));
         QTreeWidgetItem* item;
-        if (folder == "bookmarksMenu") {
+        if (folder == QLatin1String("bookmarksMenu")) {
             folder = _bookmarksMenu;
         }
-        if (folder == "bookmarksToolbar") {
+        if (folder == QLatin1String("bookmarksToolbar")) {
             continue;
         }
 

src/lib/sidebar/sidebar.cpp

@@ -169,7 +169,7 @@ void SideBarManager::updateActions()
 
 void SideBarManager::showSideBar(const QString &id, bool toggle)
 {
-    if (id == "None") {
+    if (id == QLatin1String("None")) {
         return;
     }
 
@@ -189,10 +189,10 @@ void SideBarManager::showSideBar(const QString &id, bool toggle)
         return;
     }
 
-    if (id == "Bookmarks") {
+    if (id == QLatin1String("Bookmarks")) {
         m_sideBar.data()->showBookmarks();
     }
-    else if (id == "History") {
+    else if (id == QLatin1String("History")) {
         m_sideBar.data()->showHistory();
     }
     else {

src/lib/tools/certificateinfowidget.cpp

@@ -39,248 +39,248 @@ QString CertificateInfoWidget::clearCertSpecialSymbols(const QString &string)
 {
     QString n = Qt::escape(string);
 
-    if (!n.contains('\\')) {
+    if (!n.contains(QLatin1String("\\"))) {
         return n;
     }
 
     // Credits to http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/176679?help-en
-    n.replace("\\xC3\\x80", "A");
-    n.replace("\\xC3\\x81", "A");
-    n.replace("\\xC3\\x82", "A");
-    n.replace("\\xC3\\x83", "A");
-    n.replace("\\xC3\\x84", "A");
-    n.replace("\\xC3\\x85", "A");
-    n.replace("\\xC3\\x86", "AE");
-    n.replace("\\xC3\\x87", "C");
-    n.replace("\\xC3\\x88", "E");
-    n.replace("\\xC3\\x89", "E");
-    n.replace("\\xC3\\x8A", "E");
-    n.replace("\\xC3\\x8B", "E");
-    n.replace("\\xC3\\x8C", "I");
-    n.replace("\\xC3\\x8D", "I");
-    n.replace("\\xC3\\x8E", "I");
-    n.replace("\\xC3\\x8F", "I");
-    n.replace("\\xC3\\x90", "D");
-    n.replace("\\xC3\\x91", "N");
-    n.replace("\\xC3\\x92", "O");
-    n.replace("\\xC3\\x93", "O");
-    n.replace("\\xC3\\x94", "O");
-    n.replace("\\xC3\\x95", "O");
-    n.replace("\\xC3\\x96", "O");
-    n.replace("\\xC3\\x98", "O");
-    n.replace("\\xC3\\x99", "U");
-    n.replace("\\xC3\\x9A", "U");
-    n.replace("\\xC3\\x9B", "U");
-    n.replace("\\xC3\\x9C", "U");
-    n.replace("\\xC3\\x9D", "Y");
-    n.replace("\\xC3\\x9E", "P");
-    n.replace("\\xC3\\x9F", "ss");
-    n.replace("\\xC9\\x99", "e");
-    n.replace("\\xC3\\xA0", "a");
-    n.replace("\\xC3\\xA1", "a");
-    n.replace("\\xC3\\xA2", "a");
-    n.replace("\\xC3\\xA3", "a");
-    n.replace("\\xC3\\xA4", "a");
-    n.replace("\\xC3\\xA5", "a");
-    n.replace("\\xC3\\xA6", "ae");
-    n.replace("\\xC3\\xA7", "c");
-    n.replace("\\xC3\\xA8", "e");
-    n.replace("\\xC3\\xA9", "e");
-    n.replace("\\xC3\\xAA", "e");
-    n.replace("\\xC3\\xAB", "e");
-    n.replace("\\xC3\\xAC", "i");
-    n.replace("\\xC3\\xAD", "i");
-    n.replace("\\xC3\\xAE", "i");
-    n.replace("\\xC3\\xAF", "i");
-    n.replace("\\xC3\\xB0", "o");
-    n.replace("\\xC3\\xB1", "n");
-    n.replace("\\xC3\\xB2", "o");
-    n.replace("\\xC3\\xB3", "o");
-    n.replace("\\xC3\\xB4", "o");
-    n.replace("\\xC3\\xB5", "o");
-    n.replace("\\xC3\\xB6", "o");
-    n.replace("\\xC3\\xB8", "o");
-    n.replace("\\xC3\\xB9", "u");
-    n.replace("\\xC3\\xBA", "u");
-    n.replace("\\xC3\\xBB", "u");
-    n.replace("\\xC3\\xBC", "u");
-    n.replace("\\xC3\\xBD", "y");
-    n.replace("\\xC3\\xBE", "p");
-    n.replace("\\xC3\\xBF", "y");
-    n.replace("\\xC7\\xBF", "o");
-    n.replace("\\xC4\\x80", "A");
-    n.replace("\\xC4\\x81", "a");
-    n.replace("\\xC4\\x82", "A");
-    n.replace("\\xC4\\x83", "a");
-    n.replace("\\xC4\\x84", "A");
-    n.replace("\\xC4\\x85", "a");
-    n.replace("\\xC4\\x86", "C");
-    n.replace("\\xC4\\x87", "c");
-    n.replace("\\xC4\\x88", "C");
-    n.replace("\\xC4\\x89", "c");
-    n.replace("\\xC4\\x8A", "C");
-    n.replace("\\xC4\\x8B", "c");
-    n.replace("\\xC4\\x8C", "C");
-    n.replace("\\xC4\\x8D", "c");
-    n.replace("\\xC4\\x8E", "D");
-    n.replace("\\xC4\\x8F", "d");
-    n.replace("\\xC4\\x90", "D");
-    n.replace("\\xC4\\x91", "d");
-    n.replace("\\xC4\\x92", "E");
-    n.replace("\\xC4\\x93", "e");
-    n.replace("\\xC4\\x94", "E");
-    n.replace("\\xC4\\x95", "e");
-    n.replace("\\xC4\\x96", "E");
-    n.replace("\\xC4\\x97", "e");
-    n.replace("\\xC4\\x98", "E");
-    n.replace("\\xC4\\x99", "e");
-    n.replace("\\xC4\\x9A", "E");
-    n.replace("\\xC4\\x9B", "e");
-    n.replace("\\xC4\\x9C", "G");
-    n.replace("\\xC4\\x9D", "g");
-    n.replace("\\xC4\\x9E", "G");
-    n.replace("\\xC4\\x9F", "g");
-    n.replace("\\xC4\\xA0", "G");
-    n.replace("\\xC4\\xA1", "g");
-    n.replace("\\xC4\\xA2", "G");
-    n.replace("\\xC4\\xA3", "g");
-    n.replace("\\xC4\\xA4", "H");
-    n.replace("\\xC4\\xA5", "h");
-    n.replace("\\xC4\\xA6", "H");
-    n.replace("\\xC4\\xA7", "h");
-    n.replace("\\xC4\\xA8", "I");
-    n.replace("\\xC4\\xA9", "i");
-    n.replace("\\xC4\\xAA", "I");
-    n.replace("\\xC4\\xAB", "i");
-    n.replace("\\xC4\\xAC", "I");
-    n.replace("\\xC4\\xAD", "i");
-    n.replace("\\xC4\\xAE", "I");
-    n.replace("\\xC4\\xAF", "i");
-    n.replace("\\xC4\\xB0", "I");
-    n.replace("\\xC4\\xB1", "i");
-    n.replace("\\xC4\\xB2", "IJ");
-    n.replace("\\xC4\\xB3", "ij");
-    n.replace("\\xC4\\xB4", "J");
-    n.replace("\\xC4\\xB5", "j");
-    n.replace("\\xC4\\xB6", "K");
-    n.replace("\\xC4\\xB7", "k");
-    n.replace("\\xC4\\xB8", "k");
-    n.replace("\\xC4\\xB9", "L");
-    n.replace("\\xC4\\xBA", "l");
-    n.replace("\\xC4\\xBB", "L");
-    n.replace("\\xC4\\xBC", "l");
-    n.replace("\\xC4\\xBD", "L");
-    n.replace("\\xC4\\xBE", "l");
-    n.replace("\\xC4\\xBF", "L");
-    n.replace("\\xC5\\x80", "l");
-    n.replace("\\xC5\\x81", "L");
-    n.replace("\\xC5\\x82", "l");
-    n.replace("\\xC5\\x83", "N");
-    n.replace("\\xC5\\x84", "n");
-    n.replace("\\xC5\\x85", "N");
-    n.replace("\\xC5\\x86", "n");
-    n.replace("\\xC5\\x87", "N");
-    n.replace("\\xC5\\x88", "n");
-    n.replace("\\xC5\\x89", "n");
-    n.replace("\\xC5\\x8A", "N");
-    n.replace("\\xC5\\x8B", "n");
-    n.replace("\\xC5\\x8C", "O");
-    n.replace("\\xC5\\x8D", "o");
-    n.replace("\\xC5\\x8E", "O");
-    n.replace("\\xC5\\x8F", "o");
-    n.replace("\\xC5\\x90", "O");
-    n.replace("\\xC5\\x91", "o");
-    n.replace("\\xC5\\x92", "CE");
-    n.replace("\\xC5\\x93", "ce");
-    n.replace("\\xC5\\x94", "R");
-    n.replace("\\xC5\\x95", "r");
-    n.replace("\\xC5\\x96", "R");
-    n.replace("\\xC5\\x97", "r");
-    n.replace("\\xC5\\x98", "R");
-    n.replace("\\xC5\\x99", "r");
-    n.replace("\\xC5\\x9A", "S");
-    n.replace("\\xC5\\x9B", "s");
-    n.replace("\\xC5\\x9C", "S");
-    n.replace("\\xC5\\x9D", "s");
-    n.replace("\\xC5\\x9E", "S");
-    n.replace("\\xC5\\x9F", "s");
-    n.replace("\\xC5\\xA0", "S");
-    n.replace("\\xC5\\xA1", "s");
-    n.replace("\\xC5\\xA2", "T");
-    n.replace("\\xC5\\xA3", "t");
-    n.replace("\\xC5\\xA4", "T");
-    n.replace("\\xC5\\xA5", "t");
-    n.replace("\\xC5\\xA6", "T");
-    n.replace("\\xC5\\xA7", "t");
-    n.replace("\\xC5\\xA8", "U");
-    n.replace("\\xC5\\xA9", "u");
-    n.replace("\\xC5\\xAA", "U");
-    n.replace("\\xC5\\xAB", "u");
-    n.replace("\\xC5\\xAC", "U");
-    n.replace("\\xC5\\xAD", "u");
-    n.replace("\\xC5\\xAE", "U");
-    n.replace("\\xC5\\xAF", "u");
-    n.replace("\\xC5\\xB0", "U");
-    n.replace("\\xC5\\xB1", "u");
-    n.replace("\\xC5\\xB2", "U");
-    n.replace("\\xC5\\xB3", "u");
-    n.replace("\\xC5\\xB4", "W");
-    n.replace("\\xC5\\xB5", "w");
-    n.replace("\\xC5\\xB6", "Y");
-    n.replace("\\xC5\\xB7", "y");
-    n.replace("\\xC5\\xB8", "Y");
-    n.replace("\\xC5\\xB9", "Z");
-    n.replace("\\xC5\\xBA", "z");
-    n.replace("\\xC5\\xBB", "Z");
-    n.replace("\\xC5\\xBC", "z");
-    n.replace("\\xC5\\xBD", "Z");
-    n.replace("\\xC5\\xBE", "z");
-    n.replace("\\xC6\\x8F", "E");
-    n.replace("\\xC6\\xA0", "O");
-    n.replace("\\xC6\\xA1", "o");
-    n.replace("\\xC6\\xAF", "U");
-    n.replace("\\xC6\\xB0", "u");
-    n.replace("\\xC7\\x8D", "A");
-    n.replace("\\xC7\\x8E", "a");
-    n.replace("\\xC7\\x8F", "I");
-    n.replace("\\xC7\\x93", "U");
-    n.replace("\\xC7\\x90", "i");
-    n.replace("\\xC7\\x91", "O");
-    n.replace("\\xC7\\x92", "o");
-    n.replace("\\xC7\\x97", "U");
-    n.replace("\\xC7\\x94", "u");
-    n.replace("\\xC7\\x95", "U");
-    n.replace("\\xC7\\x96", "u");
-    n.replace("\\xC7\\x9B", "U");
-    n.replace("\\xC7\\x98", "u");
-    n.replace("\\xC7\\x99", "U");
-    n.replace("\\xC7\\x9A", "u");
-    n.replace("\\xC7\\xBD", "ae");
-    n.replace("\\xC7\\x9C", "u");
-    n.replace("\\xC7\\xBB", "a");
-    n.replace("\\xC7\\xBC", "AE");
-    n.replace("\\xC7\\xBE", "O");
-    n.replace("\\xC7\\xBA", "A");
+    n.replace(QLatin1String("\\xC3\\x80"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC3\\x81"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC3\\x82"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC3\\x83"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC3\\x84"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC3\\x85"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC3\\x86"), QLatin1String("AE"));
+    n.replace(QLatin1String("\\xC3\\x87"), QLatin1String("C"));
+    n.replace(QLatin1String("\\xC3\\x88"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC3\\x89"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC3\\x8A"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC3\\x8B"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC3\\x8C"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC3\\x8D"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC3\\x8E"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC3\\x8F"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC3\\x90"), QLatin1String("D"));
+    n.replace(QLatin1String("\\xC3\\x91"), QLatin1String("N"));
+    n.replace(QLatin1String("\\xC3\\x92"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC3\\x93"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC3\\x94"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC3\\x95"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC3\\x96"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC3\\x98"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC3\\x99"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC3\\x9A"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC3\\x9B"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC3\\x9C"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC3\\x9D"), QLatin1String("Y"));
+    n.replace(QLatin1String("\\xC3\\x9E"), QLatin1String("P"));
+    n.replace(QLatin1String("\\xC3\\x9F"), QLatin1String("ss"));
+    n.replace(QLatin1String("\\xC9\\x99"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC3\\xA0"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC3\\xA1"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC3\\xA2"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC3\\xA3"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC3\\xA4"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC3\\xA5"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC3\\xA6"), QLatin1String("ae"));
+    n.replace(QLatin1String("\\xC3\\xA7"), QLatin1String("c"));
+    n.replace(QLatin1String("\\xC3\\xA8"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC3\\xA9"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC3\\xAA"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC3\\xAB"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC3\\xAC"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC3\\xAD"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC3\\xAE"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC3\\xAF"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC3\\xB0"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC3\\xB1"), QLatin1String("n"));
+    n.replace(QLatin1String("\\xC3\\xB2"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC3\\xB3"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC3\\xB4"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC3\\xB5"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC3\\xB6"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC3\\xB8"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC3\\xB9"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC3\\xBA"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC3\\xBB"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC3\\xBC"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC3\\xBD"), QLatin1String("y"));
+    n.replace(QLatin1String("\\xC3\\xBE"), QLatin1String("p"));
+    n.replace(QLatin1String("\\xC3\\xBF"), QLatin1String("y"));
+    n.replace(QLatin1String("\\xC7\\xBF"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC4\\x80"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC4\\x81"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC4\\x82"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC4\\x83"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC4\\x84"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC4\\x85"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC4\\x86"), QLatin1String("C"));
+    n.replace(QLatin1String("\\xC4\\x87"), QLatin1String("c"));
+    n.replace(QLatin1String("\\xC4\\x88"), QLatin1String("C"));
+    n.replace(QLatin1String("\\xC4\\x89"), QLatin1String("c"));
+    n.replace(QLatin1String("\\xC4\\x8A"), QLatin1String("C"));
+    n.replace(QLatin1String("\\xC4\\x8B"), QLatin1String("c"));
+    n.replace(QLatin1String("\\xC4\\x8C"), QLatin1String("C"));
+    n.replace(QLatin1String("\\xC4\\x8D"), QLatin1String("c"));
+    n.replace(QLatin1String("\\xC4\\x8E"), QLatin1String("D"));
+    n.replace(QLatin1String("\\xC4\\x8F"), QLatin1String("d"));
+    n.replace(QLatin1String("\\xC4\\x90"), QLatin1String("D"));
+    n.replace(QLatin1String("\\xC4\\x91"), QLatin1String("d"));
+    n.replace(QLatin1String("\\xC4\\x92"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC4\\x93"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC4\\x94"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC4\\x95"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC4\\x96"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC4\\x97"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC4\\x98"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC4\\x99"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC4\\x9A"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC4\\x9B"), QLatin1String("e"));
+    n.replace(QLatin1String("\\xC4\\x9C"), QLatin1String("G"));
+    n.replace(QLatin1String("\\xC4\\x9D"), QLatin1String("g"));
+    n.replace(QLatin1String("\\xC4\\x9E"), QLatin1String("G"));
+    n.replace(QLatin1String("\\xC4\\x9F"), QLatin1String("g"));
+    n.replace(QLatin1String("\\xC4\\xA0"), QLatin1String("G"));
+    n.replace(QLatin1String("\\xC4\\xA1"), QLatin1String("g"));
+    n.replace(QLatin1String("\\xC4\\xA2"), QLatin1String("G"));
+    n.replace(QLatin1String("\\xC4\\xA3"), QLatin1String("g"));
+    n.replace(QLatin1String("\\xC4\\xA4"), QLatin1String("H"));
+    n.replace(QLatin1String("\\xC4\\xA5"), QLatin1String("h"));
+    n.replace(QLatin1String("\\xC4\\xA6"), QLatin1String("H"));
+    n.replace(QLatin1String("\\xC4\\xA7"), QLatin1String("h"));
+    n.replace(QLatin1String("\\xC4\\xA8"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC4\\xA9"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC4\\xAA"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC4\\xAB"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC4\\xAC"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC4\\xAD"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC4\\xAE"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC4\\xAF"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC4\\xB0"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC4\\xB1"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC4\\xB2"), QLatin1String("IJ"));
+    n.replace(QLatin1String("\\xC4\\xB3"), QLatin1String("ij"));
+    n.replace(QLatin1String("\\xC4\\xB4"), QLatin1String("J"));
+    n.replace(QLatin1String("\\xC4\\xB5"), QLatin1String("j"));
+    n.replace(QLatin1String("\\xC4\\xB6"), QLatin1String("K"));
+    n.replace(QLatin1String("\\xC4\\xB7"), QLatin1String("k"));
+    n.replace(QLatin1String("\\xC4\\xB8"), QLatin1String("k"));
+    n.replace(QLatin1String("\\xC4\\xB9"), QLatin1String("L"));
+    n.replace(QLatin1String("\\xC4\\xBA"), QLatin1String("l"));
+    n.replace(QLatin1String("\\xC4\\xBB"), QLatin1String("L"));
+    n.replace(QLatin1String("\\xC4\\xBC"), QLatin1String("l"));
+    n.replace(QLatin1String("\\xC4\\xBD"), QLatin1String("L"));
+    n.replace(QLatin1String("\\xC4\\xBE"), QLatin1String("l"));
+    n.replace(QLatin1String("\\xC4\\xBF"), QLatin1String("L"));
+    n.replace(QLatin1String("\\xC5\\x80"), QLatin1String("l"));
+    n.replace(QLatin1String("\\xC5\\x81"), QLatin1String("L"));
+    n.replace(QLatin1String("\\xC5\\x82"), QLatin1String("l"));
+    n.replace(QLatin1String("\\xC5\\x83"), QLatin1String("N"));
+    n.replace(QLatin1String("\\xC5\\x84"), QLatin1String("n"));
+    n.replace(QLatin1String("\\xC5\\x85"), QLatin1String("N"));
+    n.replace(QLatin1String("\\xC5\\x86"), QLatin1String("n"));
+    n.replace(QLatin1String("\\xC5\\x87"), QLatin1String("N"));
+    n.replace(QLatin1String("\\xC5\\x88"), QLatin1String("n"));
+    n.replace(QLatin1String("\\xC5\\x89"), QLatin1String("n"));
+    n.replace(QLatin1String("\\xC5\\x8A"), QLatin1String("N"));
+    n.replace(QLatin1String("\\xC5\\x8B"), QLatin1String("n"));
+    n.replace(QLatin1String("\\xC5\\x8C"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC5\\x8D"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC5\\x8E"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC5\\x8F"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC5\\x90"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC5\\x91"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC5\\x92"), QLatin1String("CE"));
+    n.replace(QLatin1String("\\xC5\\x93"), QLatin1String("ce"));
+    n.replace(QLatin1String("\\xC5\\x94"), QLatin1String("R"));
+    n.replace(QLatin1String("\\xC5\\x95"), QLatin1String("r"));
+    n.replace(QLatin1String("\\xC5\\x96"), QLatin1String("R"));
+    n.replace(QLatin1String("\\xC5\\x97"), QLatin1String("r"));
+    n.replace(QLatin1String("\\xC5\\x98"), QLatin1String("R"));
+    n.replace(QLatin1String("\\xC5\\x99"), QLatin1String("r"));
+    n.replace(QLatin1String("\\xC5\\x9A"), QLatin1String("S"));
+    n.replace(QLatin1String("\\xC5\\x9B"), QLatin1String("s"));
+    n.replace(QLatin1String("\\xC5\\x9C"), QLatin1String("S"));
+    n.replace(QLatin1String("\\xC5\\x9D"), QLatin1String("s"));
+    n.replace(QLatin1String("\\xC5\\x9E"), QLatin1String("S"));
+    n.replace(QLatin1String("\\xC5\\x9F"), QLatin1String("s"));
+    n.replace(QLatin1String("\\xC5\\xA0"), QLatin1String("S"));
+    n.replace(QLatin1String("\\xC5\\xA1"), QLatin1String("s"));
+    n.replace(QLatin1String("\\xC5\\xA2"), QLatin1String("T"));
+    n.replace(QLatin1String("\\xC5\\xA3"), QLatin1String("t"));
+    n.replace(QLatin1String("\\xC5\\xA4"), QLatin1String("T"));
+    n.replace(QLatin1String("\\xC5\\xA5"), QLatin1String("t"));
+    n.replace(QLatin1String("\\xC5\\xA6"), QLatin1String("T"));
+    n.replace(QLatin1String("\\xC5\\xA7"), QLatin1String("t"));
+    n.replace(QLatin1String("\\xC5\\xA8"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC5\\xA9"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC5\\xAA"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC5\\xAB"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC5\\xAC"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC5\\xAD"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC5\\xAE"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC5\\xAF"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC5\\xB0"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC5\\xB1"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC5\\xB2"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC5\\xB3"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC5\\xB4"), QLatin1String("W"));
+    n.replace(QLatin1String("\\xC5\\xB5"), QLatin1String("w"));
+    n.replace(QLatin1String("\\xC5\\xB6"), QLatin1String("Y"));
+    n.replace(QLatin1String("\\xC5\\xB7"), QLatin1String("y"));
+    n.replace(QLatin1String("\\xC5\\xB8"), QLatin1String("Y"));
+    n.replace(QLatin1String("\\xC5\\xB9"), QLatin1String("Z"));
+    n.replace(QLatin1String("\\xC5\\xBA"), QLatin1String("z"));
+    n.replace(QLatin1String("\\xC5\\xBB"), QLatin1String("Z"));
+    n.replace(QLatin1String("\\xC5\\xBC"), QLatin1String("z"));
+    n.replace(QLatin1String("\\xC5\\xBD"), QLatin1String("Z"));
+    n.replace(QLatin1String("\\xC5\\xBE"), QLatin1String("z"));
+    n.replace(QLatin1String("\\xC6\\x8F"), QLatin1String("E"));
+    n.replace(QLatin1String("\\xC6\\xA0"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC6\\xA1"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC6\\xAF"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC6\\xB0"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC7\\x8D"), QLatin1String("A"));
+    n.replace(QLatin1String("\\xC7\\x8E"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC7\\x8F"), QLatin1String("I"));
+    n.replace(QLatin1String("\\xC7\\x93"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC7\\x90"), QLatin1String("i"));
+    n.replace(QLatin1String("\\xC7\\x91"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC7\\x92"), QLatin1String("o"));
+    n.replace(QLatin1String("\\xC7\\x97"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC7\\x94"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC7\\x95"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC7\\x96"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC7\\x9B"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC7\\x98"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC7\\x99"), QLatin1String("U"));
+    n.replace(QLatin1String("\\xC7\\x9A"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC7\\xBD"), QLatin1String("ae"));
+    n.replace(QLatin1String("\\xC7\\x9C"), QLatin1String("u"));
+    n.replace(QLatin1String("\\xC7\\xBB"), QLatin1String("a"));
+    n.replace(QLatin1String("\\xC7\\xBC"), QLatin1String("AE"));
+    n.replace(QLatin1String("\\xC7\\xBE"), QLatin1String("O"));
+    n.replace(QLatin1String("\\xC7\\xBA"), QLatin1String("A"));
 
-    n.replace("\\xC2\\x82", ",");        // High code comma
-    n.replace("\\xC2\\x84", ",,");       // High code double comma
-    n.replace("\\xC2\\x85", "...");      // Tripple dot
-    n.replace("\\xC2\\x88", "^");        // High carat
-    n.replace("\\xC2\\x91", "\\x27");    // Forward single quote
-    n.replace("\\xC2\\x92", "\\x27");    // Reverse single quote
-    n.replace("\\xC2\\x93", "\\x22");    // Forward double quote
-    n.replace("\\xC2\\x94", "\\x22");    // Reverse double quote
-    n.replace("\\xC2\\x96", "-");        // High hyphen
-    n.replace("\\xC2\\x97", "--");       // Double hyphen
-    n.replace("\\xC2\\xA6", "|");        // Split vertical bar
-    n.replace("\\xC2\\xAB", "<<");       // Double less than
-    n.replace("\\xC2\\xBB", ">>");       // Double greater than
-    n.replace("\\xC2\\xBC", "1/4");      // one quarter
-    n.replace("\\xC2\\xBD", "1/2");      // one half
-    n.replace("\\xC2\\xBE", "3/4");      // three quarters
-    n.replace("\\xCA\\xBF", "\\x27");    // c-single quote
-    n.replace("\\xCC\\xA8", QChar());    // modifier - under curve
-    n.replace("\\xCC\\xB1", QChar());    // modifier - under line
+    n.replace(QLatin1String("\\xC2\\x82"), QLatin1String(","));        // High code comma
+    n.replace(QLatin1String("\\xC2\\x84"), QLatin1String(",,"));       // High code double comma
+    n.replace(QLatin1String("\\xC2\\x85"), QLatin1String("..."));      // Tripple dot
+    n.replace(QLatin1String("\\xC2\\x88"), QLatin1String("^"));        // High carat
+    n.replace(QLatin1String("\\xC2\\x91"), QLatin1String("\\x27"));    // Forward single quote
+    n.replace(QLatin1String("\\xC2\\x92"), QLatin1String("\\x27"));    // Reverse single quote
+    n.replace(QLatin1String("\\xC2\\x93"), QLatin1String("\\x22"));    // Forward double quote
+    n.replace(QLatin1String("\\xC2\\x94"), QLatin1String("\\x22"));    // Reverse double quote
+    n.replace(QLatin1String("\\xC2\\x96"), QLatin1String("-"));        // High hyphen
+    n.replace(QLatin1String("\\xC2\\x97"), QLatin1String("--"));       // Double hyphen
+    n.replace(QLatin1String("\\xC2\\xA6"), QLatin1String("|"));        // Split vertical bar
+    n.replace(QLatin1String("\\xC2\\xAB"), QLatin1String("<<"));       // Double less than
+    n.replace(QLatin1String("\\xC2\\xBB"), QLatin1String(">>"));       // Double greater than
+    n.replace(QLatin1String("\\xC2\\xBC"), QLatin1String("1/4"));      // one quarter
+    n.replace(QLatin1String("\\xC2\\xBD"), QLatin1String("1/2"));      // one half
+    n.replace(QLatin1String("\\xC2\\xBE"), QLatin1String("3/4"));      // three quarters
+    n.replace(QLatin1String("\\xCA\\xBF"), QLatin1String("\\x27"));    // c-single quote
+    n.replace(QLatin1String("\\xCC\\xA8"), QString());                 // modifier - under curve
+    n.replace(QLatin1String("\\xCC\\xB1"), QString());                 // modifier - under line
 
     return n;
 }

src/lib/tools/globalfunctions.cpp

@@ -140,16 +140,16 @@ QUrl qz_makeRelativeUrl(const QUrl &baseUrl, const QUrl &rUrl)
     if (samePart.isEmpty()) {
         returnUrl = rUrl;
     }
-    else if (samePart == "/") {
+    else if (samePart == QLatin1String("/")) {
         returnUrl = QUrl(rUrl.path());
     }
     else {
-        samePart = samePart.left(samePart.lastIndexOf("/") + 1);
-        int slashCount = samePart.count("/") + 1;
-        if (samePart.startsWith('/')) {
+        samePart = samePart.left(samePart.lastIndexOf(QLatin1Char('/')) + 1);
+        int slashCount = samePart.count(QLatin1Char('/')) + 1;
+        if (samePart.startsWith(QLatin1Char('/'))) {
             slashCount--;
         }
-        if (samePart.endsWith("/")) {
+        if (samePart.endsWith(QLatin1Char('/'))) {
             slashCount--;
         }
 
@@ -166,14 +166,14 @@ QString qz_urlEncodeQueryString(const QUrl &url)
     QString returnString = url.toString(QUrl::RemoveQuery | QUrl::RemoveFragment);
 
     if (url.hasQuery()) {
-        returnString += '?' + url.encodedQuery();
+        returnString += QLatin1Char('?') + url.encodedQuery();
     }
 
     if (url.hasFragment()) {
-        returnString += '#' + url.encodedFragment();
+        returnString += QLatin1Char('#') + url.encodedFragment();
     }
 
-    returnString.replace(' ', "%20");
+    returnString.replace(QLatin1Char(' '), QLatin1String("%20"));
 
     return returnString;
 }
@@ -188,7 +188,7 @@ QString qz_ensureUniqueFilename(const QString &name, const QString &appendFormat
     int i = 1;
     while (QFile::exists(tmpFileName)) {
         tmpFileName = name;
-        int index = tmpFileName.lastIndexOf(".");
+        int index = tmpFileName.lastIndexOf(QLatin1Char('.'));
 
         QString appendString = appendFormat.arg(i);
         if (index == -1) {
@@ -205,16 +205,16 @@ QString qz_ensureUniqueFilename(const QString &name, const QString &appendFormat
 QString qz_getFileNameFromUrl(const QUrl &url)
 {
     QString fileName = url.toString(QUrl::RemoveFragment | QUrl::RemoveQuery | QUrl::RemoveScheme | QUrl::RemovePort);
-    if (fileName.indexOf('/') != -1) {
-        int pos = fileName.lastIndexOf('/');
+    if (fileName.indexOf(QLatin1Char('/')) != -1) {
+        int pos = fileName.lastIndexOf(QLatin1Char('/'));
         fileName = fileName.mid(pos);
-        fileName.remove('/');
+        fileName.remove(QLatin1Char('/'));
     }
 
     fileName = qz_filterCharsFromFilename(fileName);
 
     if (fileName.isEmpty()) {
-        fileName = qz_filterCharsFromFilename(url.host().replace('.', '-'));
+        fileName = qz_filterCharsFromFilename(url.host().replace(QLatin1Char('.'), QLatin1Char('-')));
     }
 
     return fileName;
@@ -224,15 +224,15 @@ QString qz_filterCharsFromFilename(const QString &name)
 {
     QString value = name;
 
-    value.replace('/', '-');
-    value.remove('\\');
-    value.remove(':');
-    value.remove('*');
-    value.remove('?');
-    value.remove('"');
-    value.remove('<');
-    value.remove('>');
-    value.remove('|');
+    value.replace(QLatin1Char('/'), QLatin1Char('-'));
+    value.remove(QLatin1Char('\\'));
+    value.remove(QLatin1Char(':'));
+    value.remove(QLatin1Char('*'));
+    value.remove(QLatin1Char('?'));
+    value.remove(QLatin1Char('"'));
+    value.remove(QLatin1Char('<'));
+    value.remove(QLatin1Char('>'));
+    value.remove(QLatin1Char('|'));
 
     return value;
 }
@@ -325,19 +325,19 @@ QPixmap qz_createPixmapForSite(const QIcon &icon, const QString &title, const QS
 
 QString QT_QUPZILLA_EXPORT qz_applyDirectionToPage(QString &pageContents)
 {
-    QString direction = "ltr";
-    QString right_str = "right";
-    QString left_str = "left";
+    QString direction = QLatin1String("ltr");
+    QString right_str = QLatin1String("right");
+    QString left_str = QLatin1String("left");
 
     if (QApplication::isRightToLeft()) {
-        direction = "rtl";
-        right_str = "left";
-        left_str = "right";
+        direction = QLatin1String("rtl");
+        right_str = QLatin1String("left");
+        left_str = QLatin1String("right");
     }
 
-    pageContents.replace("%DIRECTION%", direction);
-    pageContents.replace("%RIGHT_STR%", right_str);
-    pageContents.replace("%LEFT_STR%", left_str);
+    pageContents.replace(QLatin1String("%DIRECTION%"), direction);
+    pageContents.replace(QLatin1String("%RIGHT_STR%"), right_str);
+    pageContents.replace(QLatin1String("%LEFT_STR%"), left_str);
 
     return pageContents;
 }

src/lib/tools/iconfetcher.cpp

@@ -57,7 +57,7 @@ void IconFetcher::pageDownloaded()
         QString linkTag = rx.cap(0);
         pos += rx.matchedLength();
 
-        if (linkTag.contains("rel=\"shortcut icon\"", Qt::CaseInsensitive)) {
+        if (linkTag.contains(QLatin1String("rel=\"shortcut icon\""), Qt::CaseInsensitive)) {
             shortcutIconTag = linkTag;
             break;
         }

src/lib/tools/iconprovider.cpp

@@ -197,22 +197,22 @@ QIcon IconProvider::standardIcon(QStyle::StandardPixmap icon)
 
 QIcon IconProvider::fromTheme(const QString &icon)
 {
-    if (icon == "go-home") {
+    if (icon == QLatin1String("go-home")) {
         return QIcon::fromTheme("go-home", QIcon(":/icons/faenza/home.png"));
     }
-    else if (icon == "text-plain") {
+    else if (icon == QLatin1String("text-plain")) {
         return QIcon::fromTheme("text-plain", QIcon(":icons/locationbar/unknownpage.png"));
     }
-    else if (icon == "user-bookmarks") {
+    else if (icon == QLatin1String("user-bookmarks")) {
         return QIcon::fromTheme("user-bookmarks", QIcon(":icons/faenza/user-bookmarks.png"));
     }
-    else if (icon == "list-remove") {
+    else if (icon == QLatin1String("list-remove")) {
         return QIcon::fromTheme("list-remove", QIcon(":icons/faenza/list-remove.png"));
     }
-    else if (icon == "go-next") {
+    else if (icon == QLatin1String("go-next")) {
         return QIcon::fromTheme("go-next", QIcon(":icons/faenza/go-next.png"));
     }
-    else if (icon == "go-previous") {
+    else if (icon == QLatin1String("go-previous")) {
         return QIcon::fromTheme("go-previous", QIcon(":icons/faenza/go-previous.png"));
     }
     else {

src/lib/webview/siteinfo.cpp

@@ -84,8 +84,8 @@ SiteInfo::SiteInfo(WebView* view, QWidget* parent)
         if (!element.attribute("charset").isEmpty()) {
             encoding = element.attribute("charset");
         }
-        if (content.contains("charset=")) {
-            encoding = content.mid(content.indexOf("charset=") + 8);
+        if (content.contains(QLatin1String("charset="))) {
+            encoding = content.mid(content.indexOf(QLatin1String("charset=")) + 8);
         }
 
         if (content.isEmpty() || name.isEmpty()) {
@@ -109,13 +109,13 @@ SiteInfo::SiteInfo(WebView* view, QWidget* parent)
         QString src = element.attribute("src");
         QString alt = element.attribute("alt");
         if (alt.isEmpty()) {
-            if (src.indexOf('/') == -1) {
+            if (src.indexOf(QLatin1Char('/')) == -1) {
                 alt = src;
             }
             else {
-                int pos = src.lastIndexOf("/");
+                int pos = src.lastIndexOf(QLatin1Char('/'));
                 alt = src.mid(pos);
-                alt.remove('/');
+                alt.remove(QLatin1Char('/'));
             }
         }
         if (src.isEmpty() || alt.isEmpty()) {
@@ -251,15 +251,15 @@ void SiteInfo::showImagePreview(QTreeWidgetItem* item)
     }
     QGraphicsScene* scene = new QGraphicsScene(ui->mediaPreview);
 
-    if (imageUrl.scheme() == "data") {
+    if (imageUrl.scheme() == QLatin1String("data")) {
         QByteArray encodedUrl = item->text(1).toUtf8();
         QByteArray imageData = encodedUrl.mid(encodedUrl.indexOf(',') + 1);
         m_activePixmap = qz_pixmapFromByteArray(imageData);
     }
-    else if (imageUrl.scheme() == "file") {
+    else if (imageUrl.scheme() == QLatin1String("file")) {
         m_activePixmap = QPixmap(imageUrl.toLocalFile());
     }
-    else if (imageUrl.scheme() == "qrc") {
+    else if (imageUrl.scheme() == QLatin1String("qrc")) {
         m_activePixmap = QPixmap(imageUrl.toString().mid(3)); // Remove qrc from url
     }
     else {

src/lib/webview/tabbedwebview.cpp

@@ -80,7 +80,8 @@ void TabbedWebView::slotIconChanged()
 {
     const QString &urlScheme = url().scheme();
 
-    if (urlScheme == "file" || urlScheme == "qupzilla" || title().contains(tr("Failed loading page"))) {
+    if (urlScheme == QLatin1String("file") || urlScheme == QLatin1String("qupzilla")
+            || title().contains(tr("Failed loading page"))) {
         return;
     }
 
@@ -180,7 +181,7 @@ void TabbedWebView::setIp(const QHostInfo &info)
         return;
     }
 
-    m_currentIp = info.hostName() + " (" + info.addresses().at(0).toString() + ")";
+    m_currentIp = QString("%1 (%2)").arg(info.hostName(), info.addresses().at(0).toString());
 
     if (isCurrent()) {
         emit ipChanged(m_currentIp);

src/lib/webview/tabwidget.cpp

@@ -240,10 +240,10 @@ void TabWidget::aboutToShowTabsMenu()
         }
         else {
             QString title = tab->title();
-            title.replace('&', "&&");
+            title.replace(QLatin1Char('&'), QLatin1String("&&"));
             if (title.length() > 40) {
                 title.truncate(40);
-                title += "..";
+                title += QLatin1String("..");
             }
             action->setText(title);
         }
@@ -356,7 +356,7 @@ void TabWidget::closeTab(int index, bool force)
     TabbedWebView* webView = webTab->view();
     WebPage* webPage = webView->page();
 
-    if (!force && webView->url() == QUrl("qupzilla:restore") && mApp->restoreManager()) {
+    if (!force && webView->url().toString() == QLatin1String("qupzilla:restore") && mApp->restoreManager()) {
         // Don't close restore page!
         return;
     }
@@ -509,7 +509,7 @@ void TabWidget::setTabText(int index, const QString &text)
     }
 
     QString newtext = text;
-    newtext.replace('&', "&&"); // Avoid Alt+letter shortcuts
+    newtext.replace(QLatin1Char('&'), QLatin1String("&&")); // Avoid Alt+letter shortcuts
 
     if (WebTab* webTab = weTab(index)) {
         if (webTab->isPinned()) {
@@ -845,7 +845,7 @@ bool TabWidget::restoreState(const QList<WebTab::SavedTab> &tabs, int currentTab
 void TabWidget::closeRecoveryTab()
 {
     foreach(WebTab * tab, allTabs(false)) {
-        if (tab->url() == QUrl("qupzilla:restore")) {
+        if (tab->url().toString() == QLatin1String("qupzilla:restore")) {
             closeTab(tab->tabIndex(), true);
         }
     }

src/lib/webview/webpage.cpp

@@ -214,7 +214,7 @@ void WebPage::finished()
         mainFrame()->setZoomFactor(mainFrame()->zoomFactor() - 1);
     }
 
-    if (url().scheme() == "file") {
+    if (url().scheme() == QLatin1String("file")) {
         QFileInfo info(url().toLocalFile());
         if (info.isFile()) {
             if (!m_fileWatcher) {
@@ -255,7 +255,7 @@ void WebPage::printFrame(QWebFrame* frame)
 
 void WebPage::addJavaScriptObject()
 {
-    if (url().toString() != "qupzilla:speeddial") {
+    if (url().toString() != QLatin1String("qupzilla:speeddial")) {
         return;
     }
 
@@ -275,7 +275,7 @@ void WebPage::handleUnsupportedContent(QNetworkReply* reply)
     case QNetworkReply::NoError:
         if (reply->header(QNetworkRequest::ContentTypeHeader).isValid()) {
             QString requestUrl = reply->request().url().toString(QUrl::RemoveFragment | QUrl::RemoveQuery);
-            if (requestUrl.endsWith(".swf")) {
+            if (requestUrl.endsWith(QLatin1String(".swf"))) {
                 const QWebElement &docElement = mainFrame()->documentElement();
                 const QWebElement &object = docElement.findFirst(QString("object[src=\"%1\"]").arg(requestUrl));
                 const QWebElement &embed = docElement.findFirst(QString("embed[src=\"%1\"]").arg(requestUrl));
@@ -292,7 +292,7 @@ void WebPage::handleUnsupportedContent(QNetworkReply* reply)
         }
 
     case QNetworkReply::ProtocolUnknownError: {
-        if (url.scheme() == "file") {
+        if (url.scheme() == QLatin1String("file")) {
             FileSchemeHandler::handleUrl(url);
             return;
         }
@@ -451,7 +451,7 @@ void WebPage::setSSLCertificate(const QSslCertificate &cert)
 
 QSslCertificate WebPage::sslCertificate()
 {
-    if (url().scheme() == "https" && m_sslCert.isValid()) {
+    if (url().scheme() == QLatin1String("https") && m_sslCert.isValid()) {
         return m_sslCert;
     }
 
@@ -465,7 +465,7 @@ bool WebPage::acceptNavigationRequest(QWebFrame* frame, const QNetworkRequest &r
 
     const QString &scheme = request.url().scheme();
 
-    if (scheme == "mailto" || scheme == "ftp") {
+    if (scheme == QLatin1String("mailto") || scheme == QLatin1String("ftp")) {
         desktopServicesOpen(request.url());
         return false;
     }
@@ -510,9 +510,12 @@ QObject* WebPage::createPlugin(const QString &classid, const QUrl &url, const QS
     Q_UNUSED(paramNames)
     Q_UNUSED(paramValues)
 
-    if (classid == "RecoveryWidget" && mApp->restoreManager()) {
+    if (classid == QLatin1String("RecoveryWidget") && mApp->restoreManager()) {
         return new RecoveryWidget(qobject_cast<WebView*>(view()), p_QupZilla);
     }
+    else {
+        mainFrame()->load(QUrl("qupzilla:start"));
+    }
 
     return 0;
 }
@@ -539,28 +542,27 @@ void WebPage::cleanBlockedObjects()
 
     foreach(const AdBlockedEntry & entry, m_adBlockedEntries) {
         const QString &urlString = entry.url.toString();
-        if (urlString.endsWith(".js") || urlString.endsWith(".css")) {
+        if (urlString.endsWith(QLatin1String(".js")) || urlString.endsWith(QLatin1String(".css"))) {
             continue;
         }
 
         QString urlEnd;
 
-        int pos = urlString.lastIndexOf('/');
+        int pos = urlString.lastIndexOf(QLatin1Char('/'));
         if (pos > 8) {
             urlEnd = urlString.mid(pos + 1);
         }
 
-        if (urlString.endsWith('/')) {
+        if (urlString.endsWith(QLatin1Char('/'))) {
             urlEnd = urlString.left(urlString.size() - 1);
         }
 
-        QString selector("img[src$=\"" + urlEnd + "\"], iframe[src$=\"" + urlEnd + "\"],"
-                         "embed[src$=\"" + urlEnd + "\"]");
-        QWebElementCollection elements = docElement.findAll(selector);
+        QString selector("img[src$=\"%1\"], iframe[src$=\"%1\"],embed[src$=\"%1\"]");
+        QWebElementCollection elements = docElement.findAll(selector.arg(urlEnd));
 
         foreach(QWebElement element, elements) {
             QString src = element.attribute("src");
-            src.remove("../");
+            src.remove(QLatin1String("../"));
 
             if (urlString.contains(src)) {
                 element.setStyleProperty("display", "none");
@@ -574,7 +576,7 @@ void WebPage::cleanBlockedObjects()
         return;
     }
 
-    elementHiding.append("{display: none !important;}\n</style>");
+    elementHiding.append(QLatin1String("{display: none !important;}\n</style>"));
 
     QWebElement bodyElement = docElement.findFirst("body");
     bodyElement.appendInside("<style type=\"text/css\">\n/* AdBlock for QupZilla */\n" + elementHiding);
@@ -588,7 +590,7 @@ QString WebPage::userAgentForUrl(const QUrl &url) const
         userAgent = QWebPage::userAgentForUrl(url);
 #ifdef Q_OS_MAC
 #ifdef __i386__ || __x86_64__
-        userAgent.replace("PPC Mac OS X", "Intel Mac OS X");
+        userAgent.replace(QLatin1String("PPC Mac OS X"), QLatin1String("Intel Mac OS X"));
 #endif
 #endif
     }
@@ -676,12 +678,12 @@ bool WebPage::extension(Extension extension, const ExtensionOption* option, Exte
             break;
         case QNetworkReply::ProtocolUnknownError: {
             // Sometimes exOption->url returns just "?" instead of actual url
-            const QUrl unknownProtocolUrl = (exOption->url == QUrl("?")) ? erPage->mainFrame()->requestedUrl() : exOption->url;
+            const QUrl unknownProtocolUrl = (exOption->url.toString() == QLatin1String("?")) ? erPage->mainFrame()->requestedUrl() : exOption->url;
             handleUnknownProtocol(unknownProtocolUrl);
             return false;
         }
         case QNetworkReply::ContentAccessDenied:
-            if (exOption->errorString.startsWith("AdBlock")) {
+            if (exOption->errorString.startsWith(QLatin1String("AdBlock"))) {
                 if (exOption->frame != erPage->mainFrame()) { //Content in <iframe>
                     QWebElement docElement = erPage->mainFrame()->documentElement();
 
@@ -699,14 +701,14 @@ bool WebPage::extension(Extension extension, const ExtensionOption* option, Exte
                 }
                 else {   //The whole page is blocked
                     QString rule = exOption->errorString;
-                    rule.remove("AdBlock: ");
+                    rule.remove(QLatin1String("AdBlock: "));
 
                     QString errString = qz_readAllFileContents(":/html/adblockPage.html");
-                    errString.replace("%TITLE%", tr("AdBlocked Content"));
-                    errString.replace("%IMAGE%", "qrc:html/adblock_big.png");
-                    errString.replace("%FAVICON%", "qrc:html/adblock_big.png");
+                    errString.replace(QLatin1String("%TITLE%"), tr("AdBlocked Content"));
+                    errString.replace(QLatin1String("%IMAGE%"), QLatin1String("qrc:html/adblock_big.png"));
+                    errString.replace(QLatin1String("%FAVICON%"), QLatin1String("qrc:html/adblock_big.png"));
 
-                    errString.replace("%RULE%", tr("Blocked by <i>%1</i>").arg(rule));
+                    errString.replace(QLatin1String("%RULE%"), tr("Blocked by <i>%1</i>").arg(rule));
                     errString = qz_applyDirectionToPage(errString);
 
                     exReturn->baseUrl = exOption->url;
@@ -750,20 +752,20 @@ bool WebPage::extension(Extension extension, const ExtensionOption* option, Exte
     QFile file(":/html/errorPage.html");
     file.open(QFile::ReadOnly);
     QString errString = file.readAll();
-    errString.replace("%TITLE%", tr("Failed loading page"));
+    errString.replace(QLatin1String("%TITLE%"), tr("Failed loading page"));
 
-    errString.replace("%IMAGE%", qz_pixmapToByteArray(qIconProvider->standardIcon(QStyle::SP_MessageBoxWarning).pixmap(45, 45)));
-    errString.replace("%FAVICON%", qz_pixmapToByteArray(qIconProvider->standardIcon(QStyle::SP_MessageBoxWarning).pixmap(16, 16)));
-    errString.replace("%BOX-BORDER%", "qrc:html/box-border.png");
+    errString.replace(QLatin1String("%IMAGE%"), qz_pixmapToByteArray(qIconProvider->standardIcon(QStyle::SP_MessageBoxWarning).pixmap(45, 45)));
+    errString.replace(QLatin1String("%FAVICON%"), qz_pixmapToByteArray(qIconProvider->standardIcon(QStyle::SP_MessageBoxWarning).pixmap(16, 16)));
+    errString.replace(QLatin1String("%BOX-BORDER%"), QLatin1String("qrc:html/box-border.png"));
 
     QString heading2 = loadedUrl.host().isEmpty() ? tr("QupZilla can't load page.") : tr("QupZilla can't load page from %1.").arg(loadedUrl.host());
 
-    errString.replace("%HEADING%", errorString);
-    errString.replace("%HEADING2%", heading2);
-    errString.replace("%LI-1%", tr("Check the address for typing errors such as <b>ww.</b>example.com instead of <b>www.</b>example.com"));
-    errString.replace("%LI-2%", tr("If you are unable to load any pages, check your computer's network connection."));
-    errString.replace("%LI-3%", tr("If your computer or network is protected by a firewall or proxy, make sure that QupZilla is permitted to access the Web."));
-    errString.replace("%TRY-AGAIN%", tr("Try Again"));
+    errString.replace(QLatin1String("%HEADING%"), errorString);
+    errString.replace(QLatin1String("%HEADING2%"), heading2);
+    errString.replace(QLatin1String("%LI-1%"), tr("Check the address for typing errors such as <b>ww.</b>example.com instead of <b>www.</b>example.com"));
+    errString.replace(QLatin1String("%LI-2%"), tr("If you are unable to load any pages, check your computer's network connection."));
+    errString.replace(QLatin1String("%LI-3%"), tr("If your computer or network is protected by a firewall or proxy, make sure that QupZilla is permitted to access the Web."));
+    errString.replace(QLatin1String("%TRY-AGAIN%"), tr("Try Again"));
     errString = qz_applyDirectionToPage(errString);
 
     exReturn->content = QString(errString + "<span id=\"qupzilla-error-page\"></span>").toUtf8();

src/lib/webview/webview.cpp

@@ -69,11 +69,11 @@ WebView::WebView(QWidget* parent)
 
 QIcon WebView::icon() const
 {
-    if (url().scheme() == "qupzilla") {
+    if (url().scheme() == QLatin1String("qupzilla")) {
         return QIcon(":icons/qupzilla.png");
     }
 
-    if (url().scheme() == "file") {
+    if (url().scheme() == QLatin1String("file")) {
         return qIconProvider->standardIcon(QStyle::SP_DriveHDIcon);
     }
 
@@ -96,7 +96,7 @@ QString WebView::title() const
         title = url().toString(QUrl::RemoveFragment);
     }
 
-    if (title.isEmpty() || title == "about:blank") {
+    if (title.isEmpty() || title == QLatin1String("about:blank")) {
         return tr("No Named Page");
     }
 
@@ -111,7 +111,7 @@ QUrl WebView::url() const
         returnUrl = m_aboutToLoadUrl;
     }
 
-    if (returnUrl.toString() == "about:blank") {
+    if (returnUrl.toString() == QLatin1String("about:blank")) {
         returnUrl = QUrl();
     }
 
@@ -148,7 +148,7 @@ void WebView::load(const QNetworkRequest &request, QNetworkAccessManager::Operat
 {
     const QUrl &reqUrl = request.url();
 
-    if (reqUrl.scheme() == "javascript") {
+    if (reqUrl.scheme() == QLatin1String("javascript")) {
         // Getting scriptSource from PercentEncoding to properly load bookmarklets
         QString scriptSource = QUrl::fromPercentEncoding(reqUrl.toString().mid(11).toUtf8());
         page()->mainFrame()->evaluateJavaScript(scriptSource);
@@ -193,11 +193,12 @@ void WebView::fakeLoadingProgress(int progress)
 bool WebView::isUrlValid(const QUrl &url)
 {
     const QString &urlScheme = url.scheme();
-    if (urlScheme == "data" || urlScheme == "qrc" || urlScheme == "mailto") {
+    if (urlScheme == QLatin1String("data") || urlScheme == QLatin1String("qrc") ||
+            urlScheme == QLatin1String("mailto")) {
         return true;
     }
 
-    if (urlScheme == "qupzilla" || urlScheme == "file") {
+    if (urlScheme == QLatin1String("qupzilla") || urlScheme == QLatin1String("file")) {
         return !url.path().isEmpty();
     }
 
@@ -379,7 +380,7 @@ void WebView::slotIconChanged()
 void WebView::slotUrlChanged(const QUrl &url)
 {
     // Disable touch mocking on all google pages as it just makes it buggy
-    if (url.host().contains("google")) {
+    if (url.host().contains(QLatin1String("google"))) {
         m_disableTouchMocking = true;
     }
     else {
@@ -419,8 +420,8 @@ void WebView::savePageAs()
 {
     QNetworkRequest request(url());
     QString suggestedFileName = qz_getFileNameFromUrl(url());
-    if (!suggestedFileName.contains('.')) {
-        suggestedFileName.append(".html");
+    if (!suggestedFileName.contains(QLatin1Char('.'))) {
+        suggestedFileName.append(QLatin1String(".html"));
     }
 
     DownloadManager::DownloadInfo info;
@@ -640,7 +641,8 @@ QUrl WebView::lastUrl()
 
 bool WebView::isMediaElement(const QWebElement &element)
 {
-    return (element.tagName().toLower() == "video" || element.tagName().toLower() == "audio");
+    return (element.tagName().toLower() == QLatin1String("video")
+            || element.tagName().toLower() == QLatin1String("audio"));
 }
 
 void WebView::checkForForm(QMenu* menu, const QWebElement &element)
@@ -648,7 +650,7 @@ void WebView::checkForForm(QMenu* menu, const QWebElement &element)
     QWebElement parentElement = element.parent();
 
     while (!parentElement.isNull()) {
-        if (parentElement.tagName().toLower() == "form") {
+        if (parentElement.tagName().toLower() == QLatin1String("form")) {
             break;
         }
 
@@ -662,7 +664,7 @@ void WebView::checkForForm(QMenu* menu, const QWebElement &element)
     const QString &url = parentElement.attribute("action");
     const QString &method = parentElement.hasAttribute("method") ? parentElement.attribute("method").toUpper() : "GET";
 
-    if (!url.isEmpty() && method == "GET") {
+    if (!url.isEmpty() && method == QLatin1String("GET")) {
         menu->addAction(QIcon(":icons/menu/search-icon.png"), tr("Create Search Engine"), this, SLOT(createSearchEngine()));
 
         m_clickedElement = element;
@@ -694,7 +696,7 @@ void WebView::createContextMenu(QMenu* menu, const QWebHitTestResult &hitTest, c
         m_actionStop->setEnabled(isLoading());
     }
 
-    if (!hitTest.linkUrl().isEmpty() && hitTest.linkUrl().scheme() != "javascript") {
+    if (!hitTest.linkUrl().isEmpty() && hitTest.linkUrl().scheme() != QLatin1String("javascript")) {
         createLinkContextMenu(menu, hitTest);
     }
 
@@ -738,7 +740,7 @@ void WebView::createContextMenu(QMenu* menu, const QWebHitTestResult &hitTest, c
             delete pageMenu;
         }
 
-        if (hitTest.element().tagName().toLower() == "input") {
+        if (hitTest.element().tagName().toLower() == QLatin1String("input")) {
             checkForForm(menu, hitTest.element());
         }
     }
@@ -807,9 +809,9 @@ void WebView::createPageContextMenu(QMenu* menu, const QPoint &pos)
     menu->addSeparator();
     menu->addAction(QIcon::fromTheme("edit-select-all"), tr("Select &all"), this, SLOT(selectAll()));
     menu->addSeparator();
-    if (url().scheme() == "http" || url().scheme() == "https") {
-        //             bool result = validateConfirm(tr("Do you want to upload this page to an online source code validator?"));
-        //                 if (result)
+    if (url().scheme() == QLatin1String("http") || url().scheme() == QLatin1String("https")) {
+//        bool result = validateConfirm(tr("Do you want to upload this page to an online source code validator?"));
+//        if (result)
         menu->addAction(tr("Validate page"), this, SLOT(openUrlInSelectedTab()))->setData(QUrl("http://validator.w3.org/check?uri=" + url().toString()));
     }
 
@@ -888,10 +890,10 @@ void WebView::createSelectedTextContextMenu(QMenu* menu, const QWebHitTestResult
     menu->addAction(dictact);
 
     // #379: Remove newlines
-    QString selectedString = selectedText.trimmed().remove('\n');
-    if (!selectedString.contains('.')) {
+    QString selectedString = selectedText.trimmed().remove(QLatin1Char('\n'));
+    if (!selectedString.contains(QLatin1Char('.'))) {
         // Try to add .com
-        selectedString.append(".com");
+        selectedString.append(QLatin1String(".com"));
     }
     QUrl guessedUrl = QUrl::fromUserInput(selectedString);
 
@@ -907,7 +909,7 @@ void WebView::createSelectedTextContextMenu(QMenu* menu, const QWebHitTestResult
     menu->addSeparator();
     selectedText.truncate(20);
     // KDE is displaying new lines in menu actions ... weird -,-
-    selectedText.replace('\n', ' ').remove('\t');
+    selectedText.replace(QLatin1Char('\n'), QLatin1Char(' ')).remove(QLatin1Char('\t'));
 
     SearchEngine engine = mApp->searchEnginesManager()->activeEngine();
     Action* act = new Action(engine.icon, tr("Search \"%1 ..\" with %2").arg(selectedText, engine.name));

src/plugins/AccessKeysNavigation/akn_plugin.cpp

@@ -60,7 +60,7 @@ bool AKN_Plugin::testPlugin()
 {
     // Let's be sure, require latest version of QupZilla
 
-    return (QupZilla::VERSION == "1.3.1");
+    return (QupZilla::VERSION == QLatin1String("1.3.1"));
 }
 
 QTranslator* AKN_Plugin::getTranslator(const QString &locale)

src/plugins/GreaseMonkey/gm_plugin.cpp

@@ -84,7 +84,7 @@ QNetworkReply* GM_Plugin::createRequest(QNetworkAccessManager::Operation op, con
     if (op == QNetworkAccessManager::GetOperation && request.rawHeader("X-QupZilla-UserLoadAction") == QByteArray("1")) {
         const QString &urlString = request.url().toString(QUrl::RemoveFragment | QUrl::RemoveQuery);
 
-        if (urlString.endsWith(".user.js")) {
+        if (urlString.endsWith(QLatin1String(".user.js"))) {
             m_manager->downloadScript(request);
             return new EmptyNetworkReply;
         }

src/plugins/GreaseMonkey/gm_script.cpp

@@ -160,7 +160,7 @@ void GM_Script::parseScript(const QString &filePath)
 
     QStringList requireList;
 
-    const QStringList &lines = metadataBlock.split('\n');
+    const QStringList &lines = metadataBlock.split(QLatin1Char('\n'));
     foreach(QString line, lines) {
         if (!line.startsWith(QLatin1String("// @"))) {
             continue;

src/plugins/GreaseMonkey/gm_urlmatcher.cpp

@@ -92,7 +92,7 @@ void GM_UrlMatcher::parsePattern(QString pattern)
         .replace(QRegExp("^\\\\\\|"), QLatin1String("^"))
         .replace(QRegExp("\\\\\\|$"), QLatin1String("$"))
         .replace(QRegExp("\\\\\\*"), QLatin1String(".*"))
-        .replace("\\.tld", QLatin1String("\\.[a-z.]{2,6}"));
+        .replace(QLatin1String("\\.tld"), QLatin1String("\\.[a-z.]{2,6}"));
 
         m_useRegExp = true;
         m_regExp = QRegExp(pattern, Qt::CaseInsensitive);

src/plugins/MouseGestures/mousegesturesplugin.cpp

@@ -63,7 +63,7 @@ bool MouseGesturesPlugin::testPlugin()
 {
     // Let's be sure, require latest version of QupZilla
 
-    return (QupZilla::VERSION == "1.3.1");
+    return (QupZilla::VERSION == QLatin1String("1.3.1"));
 }
 
 QTranslator* MouseGesturesPlugin::getTranslator(const QString &locale)

src/plugins/PIM/PIM_handler.cpp

@@ -172,7 +172,7 @@ void PIM_Handler::pimInsert()
     }
 
     QString info = action->data().toString();
-    info.replace('"', "\\\"");
+    info.replace(QLatin1Char('"'), QLatin1String("\\\""));
     m_element.evaluateJavaScript(QString("var newVal = this.value.substring(0, this.selectionStart) + \"%1\" + this.value.substring(this.selectionEnd); this.value = newVal;").arg(info));
 }
 

src/plugins/PIM/PIM_plugin.cpp

@@ -64,7 +64,7 @@ bool PIM_Plugin::testPlugin()
 {
     // Let's be sure, require latest version of QupZilla
 
-    return (QupZilla::VERSION == "1.3.1");
+    return (QupZilla::VERSION == QLatin1String("1.3.1"));
 }
 
 QTranslator* PIM_Plugin::getTranslator(const QString &locale)

src/plugins/TestPlugin/testplugin.cpp

@@ -89,7 +89,7 @@ bool TestPlugin::testPlugin()
     //There should be some testing if plugin is loaded correctly
     //If this function returns false, plugin is automatically unloaded
 
-    return (QupZilla::VERSION == "1.3.1");
+    return (QupZilla::VERSION == QLatin1String("1.3.1"));
 }
 
 QTranslator* TestPlugin::getTranslator(const QString &locale)