diff --git a/src/completion/katecompletionmodel.cpp b/src/completion/katecompletionmodel.cpp
--- a/src/completion/katecompletionmodel.cpp
+++ b/src/completion/katecompletionmodel.cpp
@@ -752,7 +752,7 @@
 
     if (groupingMethod() & Scope) {
         if (!title.isEmpty()) {
-            title.append(QLatin1String(" "));
+            title.append(QLatin1Char(' '));
         }
 
         title.append(scope);
@@ -803,7 +803,7 @@
 
         if (!it.isEmpty()) {
             if (!title.isEmpty()) {
-                title.append(QLatin1String(" "));
+                title.append(QLatin1Char(' '));
             }
 
             title.append(it);
@@ -1350,7 +1350,7 @@
     foreach (const QList<int>& list, m_columnMerges) {
       columnMerge += '[';
       foreach (int column, list) {
-        columnMerge += QString::number(column) + " ";
+        columnMerge += QString::number(column) + QLatin1Char(' ');
       }
       columnMerge += "] ";
     }
diff --git a/src/document/katedocument.cpp b/src/document/katedocument.cpp
--- a/src/document/katedocument.cpp
+++ b/src/document/katedocument.cpp
@@ -811,7 +811,7 @@
     }
 
     // just reuse normal function
-    return insertText(position, textLines.join(QLatin1String("\n")), block);
+    return insertText(position, textLines.join(QLatin1Char('\n')), block);
 }
 
 bool KTextEditor::DocumentPrivate::removeText(const KTextEditor::Range &_range, bool block)
@@ -1721,7 +1721,7 @@
     // remember last change cursor
     m_editLastChangeStartCursor = rangeRemoved.start();
 
-    emit textRemoved(this, rangeRemoved, oldText.join(QLatin1String("\n")) + QLatin1Char('\n'));
+    emit textRemoved(this, rangeRemoved, oldText.join(QLatin1Char('\n')) + QLatin1Char('\n'));
 
     editEnd();
 
diff --git a/src/inputmode/kateviinputmode.cpp b/src/inputmode/kateviinputmode.cpp
--- a/src/inputmode/kateviinputmode.cpp
+++ b/src/inputmode/kateviinputmode.cpp
@@ -170,7 +170,7 @@
     QString currentMode = viModeToString(m_viModeManager->getCurrentViMode());
 
     if (m_viModeManager->macroRecorder()->isRecording()) {
-        currentMode.prepend(QLatin1String("(") + i18n("recording") + QLatin1String(") "));
+        currentMode.prepend(QLatin1Char('(') + i18n("recording") + QLatin1String(") "));
     }
 
     QString cmd = m_viModeManager->getVerbatimKeys();
diff --git a/src/mode/katemodeconfigpage.cpp b/src/mode/katemodeconfigpage.cpp
--- a/src/mode/katemodeconfigpage.cpp
+++ b/src/mode/katemodeconfigpage.cpp
@@ -60,7 +60,7 @@
     ui->cmbHl->addItem(i18n("<Unchanged>"), QVariant(QString()));
    for (const auto &hl : KateHlManager::self()->modeList()) {
         if (hl.section().length() > 0)
-            ui->cmbHl->addItem(hl.section() + QLatin1String("/") + hl.translatedName(), QVariant(hl.name()));
+            ui->cmbHl->addItem(hl.section() + QLatin1Char('/') + hl.translatedName(), QVariant(hl.name()));
         else {
             ui->cmbHl->addItem(hl.translatedName(), QVariant(hl.name()));
         }
@@ -145,7 +145,7 @@
 
     foreach (KateFileType *type, m_types) {
         if (!type->sectionTranslated().isEmpty()) {
-            ui->cmbFiletypes->addItem(type->sectionTranslated() + QLatin1String("/") + type->nameTranslated());
+            ui->cmbFiletypes->addItem(type->sectionTranslated() + QLatin1Char('/') + type->nameTranslated());
         } else {
             ui->cmbFiletypes->addItem(type->nameTranslated());
         }
diff --git a/src/schema/kateschemaconfig.cpp b/src/schema/kateschemaconfig.cpp
--- a/src/schema/kateschemaconfig.cpp
+++ b/src/schema/kateschemaconfig.cpp
@@ -633,7 +633,7 @@
 
     for (const auto &hl : KateHlManager::self()->modeList()) {
         if (hl.section().length() > 0) {
-            hlCombo->addItem(hl.section() + QLatin1String("/") + hl.translatedName());
+            hlCombo->addItem(hl.section() + QLatin1Char('/') + hl.translatedName());
         } else {
             hlCombo->addItem(hl.translatedName());
         }
diff --git a/src/search/kateplaintextsearch.cpp b/src/search/kateplaintextsearch.cpp
--- a/src/search/kateplaintextsearch.cpp
+++ b/src/search/kateplaintextsearch.cpp
@@ -65,7 +65,7 @@
     }
 
     // split multi-line needle into single lines
-    const QStringList needleLines = text.split(QStringLiteral("\n"));
+    const QStringList needleLines = text.split(QLatin1Char('\n'));
 
     if (needleLines.count() > 1) {
         // multi-line plaintext search (both forwards or backwards)
diff --git a/src/search/kateregexpsearch.cpp b/src/search/kateregexpsearch.cpp
--- a/src/search/kateregexpsearch.cpp
+++ b/src/search/kateregexpsearch.cpp
@@ -247,7 +247,6 @@
         FAST_DEBUG("  line" << 0 << "has length" << lineLens[0]);
 
         // second line and after
-        const QString sep = QStringLiteral("\n");
         for (int i = 1; i < inputLineCount; i++) {
             const int lineNum = firstLineIndex + i;
             if (lineNum < 0 || m_document->lines() <= lineNum) {
@@ -258,7 +257,7 @@
             const QString text = m_document->line(lineNum);
 
             lineLens[i] = text.length();
-            wholeDocument.append(sep);
+            wholeDocument.append(QLatin1Char('\n'));
             wholeDocument.append(text);
             FAST_DEBUG("  line" << i << "has length" << lineLens[i]);
         }
diff --git a/src/search/katesearchbar.cpp b/src/search/katesearchbar.cpp
--- a/src/search/katesearchbar.cpp
+++ b/src/search/katesearchbar.cpp
@@ -1219,7 +1219,7 @@
                 for (int i = 1; i <= 9; i++) {
                     const QString number = QString::number(i);
                     const QString &captureDetails = (i <= captureCount)
-                                                    ? (QString::fromLatin1(" = (") + capturePatterns[i - 1].left(30)) + QLatin1String(")")
+                                                    ? (QString::fromLatin1(" = (") + capturePatterns[i - 1].left(30)) + QLatin1Char(')')
                                                     : QString();
                     addMenuManager.addEntry(QLatin1String("\\") + number, QString(),
                                             i18n("Reference") + QLatin1Char(' ') + number + captureDetails);
diff --git a/src/swapfile/kateswapfile.cpp b/src/swapfile/kateswapfile.cpp
--- a/src/swapfile/kateswapfile.cpp
+++ b/src/swapfile/kateswapfile.cpp
@@ -596,14 +596,14 @@
 
         // append the sha1 sum of the full path + filename, to avoid "too long" paths created
         path.append(QString::fromLatin1(QCryptographicHash::hash(fullLocalPath.toUtf8(), QCryptographicHash::Sha1).toHex()));
-        path.append(QLatin1String("-"));
+        path.append(QLatin1Char('-'));
         path.append(QFileInfo(fullLocalPath).fileName());
 
         path.append(QLatin1String(".kate-swp"));
     } else {
         path = fullLocalPath;
         int poz = path.lastIndexOf(QLatin1Char('/'));
-        path.insert(poz + 1, QLatin1String("."));
+        path.insert(poz + 1, QLatin1Char('.'));
         path.append(QLatin1String(".kate-swp"));
     }
 
diff --git a/src/utils/katecommandrangeexpressionparser.cpp b/src/utils/katecommandrangeexpressionparser.cpp
--- a/src/utils/katecommandrangeexpressionparser.cpp
+++ b/src/utils/katecommandrangeexpressionparser.cpp
@@ -46,12 +46,12 @@
                       m_thisLine.pattern() + QLatin1String(")|(?:") +
                       m_lastLine.pattern() + QLatin1String(")|(?:") +
                       m_forwardSearch2.pattern() + QLatin1String(")|(?:") +
-                      m_backwardSearch2.pattern() + QLatin1String(")"));
+                      m_backwardSearch2.pattern() + QLatin1Char(')'));
     m_offset.setPattern(QLatin1String("[+-](?:") + m_base.pattern() + QLatin1String(")?"));
 
     // The position regexp contains two groups: the base and the offset.
     // The offset may be empty.
-    m_position.setPattern(QLatin1String("(") + m_base.pattern() + QLatin1String(")((?:") + m_offset.pattern() + QLatin1String(")*)"));
+    m_position.setPattern(QLatin1Char('(') + m_base.pattern() + QLatin1String(")((?:") + m_offset.pattern() + QLatin1String(")*)"));
 
     // The range regexp contains seven groups: the first is the start position, the second is
     // the base of the start position, the third is the offset of the start position, the
diff --git a/src/variableeditor/variablelistview.cpp b/src/variableeditor/variablelistview.cpp
--- a/src/variableeditor/variablelistview.cpp
+++ b/src/variableeditor/variablelistview.cpp
@@ -129,7 +129,7 @@
     QMap<QString, QString>::const_iterator it = m_variables.constBegin();
     while (it != m_variables.constEnd()) {
         if (!line.isEmpty()) {
-            line += QLatin1String(" ");
+            line += QLatin1Char(' ');
         }
         line += it.key() + QLatin1Char(' ') + it.value() + QLatin1Char(';');
 
diff --git a/src/view/kateviewhelpers.cpp b/src/view/kateviewhelpers.cpp
--- a/src/view/kateviewhelpers.cpp
+++ b/src/view/kateviewhelpers.cpp
@@ -3080,7 +3080,7 @@
          * get text for the menu ;)
          */
         QString leftPart = (text.size() > 48) ? (text.left(48) + QLatin1String("...")) : text;
-        QAction *a = menu()->addAction(leftPart.replace(QLatin1String("\n"), QLatin1String(" ")), this, SLOT(paste()));
+        QAction *a = menu()->addAction(leftPart.replace(QLatin1Char('\n'), QLatin1Char(' ')), this, SLOT(paste()));
         a->setData(i++);
     }
 }
diff --git a/src/vimode/appcommands.cpp b/src/vimode/appcommands.cpp
--- a/src/vimode/appcommands.cpp
+++ b/src/vimode/appcommands.cpp
@@ -158,7 +158,7 @@
             if (base.isValid()) { // first try to use the same path as the current open document has
                 url = QUrl(base.resolved(arg2path));  //resolved handles the case where the args is a relative path, and is the same as using QUrl(args) elsewise
             } else { // else use the cwd
-                url = QUrl(QUrl(QDir::currentPath() + QLatin1String("/")).resolved(arg2path)); // + "/" is needed because of http://lists.qt.nokia.com/public/qt-interest/2011-May/033913.html
+                url = QUrl(QUrl(QDir::currentPath() + QLatin1Char('/')).resolved(arg2path)); // + "/" is needed because of http://lists.qt.nokia.com/public/qt-interest/2011-May/033913.html
             }
             QFileInfo file(url.toLocalFile());
 
diff --git a/src/vimode/inputmodemanager.cpp b/src/vimode/inputmodemanager.cpp
--- a/src/vimode/inputmodemanager.cpp
+++ b/src/vimode/inputmodemanager.cpp
@@ -172,7 +172,7 @@
 
             // remove the angle brackets
             decoded.remove(0, 1);
-            decoded.remove(decoded.indexOf(QLatin1String(">")), 1);
+            decoded.remove(decoded.indexOf(QLatin1Char('>')), 1);
 
             // check if one or more modifier keys where used
             if (decoded.indexOf(QLatin1String("s-")) != -1 || decoded.indexOf(QLatin1String("c-")) != -1
diff --git a/src/vimode/keyparser.cpp b/src/vimode/keyparser.cpp
--- a/src/vimode/keyparser.cpp
+++ b/src/vimode/keyparser.cpp
@@ -603,7 +603,7 @@
                 // If we are <space>, encode as a literal " ".
                 QString rest = keys.mid(i);
                 if (rest.indexOf(QLatin1Char('>'), 1) != -1 && rest.mid(1, rest.indexOf(QLatin1Char('>'), 1) - 1) == QLatin1String("space")) {
-                    encodedSequence.append(QLatin1String(" "));
+                    encodedSequence.append(QLatin1Char(' '));
                     i += rest.indexOf(QLatin1Char('>'), 1);
                     continue;
                 } else if (rest.indexOf(QLatin1Char('>'), 1) == -1 || (rest.indexOf(QLatin1Char('<'), 1) < rest.indexOf(QLatin1Char('>'), 1) && rest.indexOf(QLatin1Char('<'), 1) != -1)) {
diff --git a/src/vimode/macros.cpp b/src/vimode/macros.cpp
--- a/src/vimode/macros.cpp
+++ b/src/vimode/macros.cpp
@@ -122,7 +122,7 @@
 QString Macros::encodeMacroCompletionForConfig(const Completion &completionForMacro) const
 {
     const bool endedWithSemiColon = completionForMacro.completedText().endsWith(QLatin1Char(';'));
-    QString encodedMacroCompletion = completionForMacro.completedText().remove(QStringLiteral("()")).remove(QStringLiteral(";"));
+    QString encodedMacroCompletion = completionForMacro.completedText().remove(QStringLiteral("()")).remove(QLatin1Char(';'));
     if (completionForMacro.completionType() == Completion::FunctionWithArgs) {
         encodedMacroCompletion += QLatin1String("(...)");
     } else if (completionForMacro.completionType() == Completion::FunctionWithoutArgs) {
@@ -139,7 +139,7 @@
 
 Completion Macros::decodeMacroCompletionFromConfig(const QString &encodedMacroCompletion)
 {
-    const bool removeTail = encodedMacroCompletion.endsWith(QLatin1String("|"));
+    const bool removeTail = encodedMacroCompletion.endsWith(QLatin1Char('|'));
     Completion::CompletionType completionType = Completion::PlainText;
     if (encodedMacroCompletion.contains(QLatin1String("(...)"))) {
         completionType = Completion::FunctionWithArgs;
diff --git a/src/vimode/marks.cpp b/src/vimode/marks.cpp
--- a/src/vimode/marks.cpp
+++ b/src/vimode/marks.cpp
@@ -236,7 +236,7 @@
 
     Q_FOREACH (QChar markerChar, m_marks.keys()) {
         if (m_marks.value(markerChar)->line() == line) {
-            res += markerChar + QLatin1String(":") + QString::number(m_marks.value(markerChar)->column()) + QLatin1String(" ");
+            res += markerChar + QLatin1Char(':') + QString::number(m_marks.value(markerChar)->column()) + QLatin1Char(' ');
         }
     }
 
diff --git a/src/vimode/modes/normalvimode.cpp b/src/vimode/modes/normalvimode.cpp
--- a/src/vimode/modes/normalvimode.cpp
+++ b/src/vimode/modes/normalvimode.cpp
@@ -2631,7 +2631,7 @@
         int column = n2 - item.length();
         bool reverse = false;
 
-        if (matchingItem.left(1) == QLatin1String("-")) {
+        if (matchingItem.startsWith(QLatin1Char('-'))) {
             matchingItem.remove(0, 1);   // remove the '-'
             reverse = true;
         }