4 files changed, 24 insertions, 7 deletions

diff --git a/tools/linguist/linguist/mainwindow.cpp b/tools/linguist/linguist/mainwindow.cpp
index 265df05..18baa24 100644
--- a/tools/linguist/linguist/mainwindow.cpp
+++ b/tools/linguist/linguist/mainwindow.cpp
@@ -1522,7 +1522,7 @@ void MainWindow::selectedMessageChanged(const QModelIndex &sortedIndex, const QM
             }
             m_phraseView->setSourceText(-1, QString());
         }
-        if (m) {
+        if (m && !m->fileName().isEmpty()) {
             if (hasFormPreview(m->fileName())) {
                 m_sourceAndFormView->setCurrentWidget(m_formPreviewView);
                 m_formPreviewView->setSourceContext(model, m);
@@ -1577,7 +1577,7 @@ void MainWindow::updateTranslation(const QStringList &translations)
         return;
 
     m->setTranslations(translations);
-    if (hasFormPreview(m->fileName()))
+    if (!m->fileName().isEmpty() && hasFormPreview(m->fileName()))
         m_formPreviewView->setSourceContext(m_currentIndex.model(), m);
     updateDanger(m_currentIndex, true);
 
@@ -1996,7 +1996,7 @@ void MainWindow::updateLatestModel(int model)
 
         if (m_currentIndex.isValid()) {
             if (MessageItem *item = m_dataModel->messageItem(m_currentIndex)) {
-                if (hasFormPreview(item->fileName()))
+                if (!item->fileName().isEmpty() && hasFormPreview(item->fileName()))
                     m_formPreviewView->setSourceContext(model, item);
                 if (enableRw && !item->isObsolete())
                     m_phraseView->setSourceText(model, item->text());
diff --git a/tools/linguist/linguist/sourcecodeview.cpp b/tools/linguist/linguist/sourcecodeview.cpp
index b8dd9c0..d2eef56 100644
--- a/tools/linguist/linguist/sourcecodeview.cpp
+++ b/tools/linguist/linguist/sourcecodeview.cpp
@@ -64,7 +64,7 @@ void SourceCodeView::setSourceContext(const QString &fileName, const int lineNum
     m_fileToLoad.clear();
     setToolTip(fileName);
 
-    if (fileName.isNull()) {
+    if (fileName.isEmpty()) {
         clear();
         m_currentFileName.clear();
         appendHtml(tr("<i>Source code not available</i>"));
diff --git a/tools/linguist/lupdate/cpp.cpp b/tools/linguist/lupdate/cpp.cpp
index 970d44b..6ea7299 100644
--- a/tools/linguist/lupdate/cpp.cpp
+++ b/tools/linguist/lupdate/cpp.cpp
@@ -489,6 +489,7 @@ STRING(class);
 STRING(findMessage);
 STRING(friend);
 STRING(namespace);
+STRING(operator);
 STRING(qtTrId);
 STRING(return);
 STRING(struct);
@@ -753,6 +754,20 @@ uint CppParser::getToken()
                 if (yyWord == strnamespace)
                     return Tok_namespace;
                 break;
+            case 'o':
+                if (yyWord == stroperator) {
+                    // Operator overload declaration/definition.
+                    // We need to prevent those characters from confusing the followup
+                    // parsing. Actually using them does not add value, so just eat them.
+                    while (isspace(yyCh))
+                       yyCh = getChar();
+                    while (yyCh == '+' || yyCh == '-' || yyCh == '*' || yyCh == '/' || yyCh == '%'
+                           || yyCh == '=' || yyCh == '<' || yyCh == '>' || yyCh == '!'
+                           || yyCh == '&' || yyCh == '|' || yyCh == '~' || yyCh == '^'
+                           || yyCh == '[' || yyCh == ']')
+                        yyCh = getChar();
+                }
+                break;
             case 'q':
                 if (yyWord == strqtTrId)
                     return Tok_trid;
@@ -1678,6 +1693,8 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                 functionContextUnresolved.clear(); // Pointless
                 prospectiveContext.clear();
                 pendingContext.clear();
+
+                yyTok = getToken();
             }
             break;
         case Tok_namespace:
@@ -1689,7 +1706,6 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                 HashString ns = HashString(text);
                 yyTok = getToken();
                 if (yyTok == Tok_LeftBrace) {
-                    yyTok = getToken();
                     namespaceDepths.push(namespaces.count());
                     enterNamespace(&namespaces, ns);
 
@@ -1697,6 +1713,7 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
                     functionContextUnresolved.clear();
                     prospectiveContext.clear();
                     pendingContext.clear();
+                    yyTok = getToken();
                 } else if (yyTok == Tok_Equals) {
                     // e.g. namespace Is = OuterSpace::InnerSpace;
                     QList<HashString> fullName;
diff --git a/tools/linguist/shared/translator.h b/tools/linguist/shared/translator.h
index cfb2178..02cfb07 100644
--- a/tools/linguist/shared/translator.h
+++ b/tools/linguist/shared/translator.h
@@ -123,8 +123,8 @@ class Translator
 public:
     Translator();
 
-    bool load(const QString &filename, ConversionData &err, const QString &format /*= "auto"*/);
-    bool save(const QString &filename, ConversionData &err, const QString &format /*= "auto"*/) const;
+    bool load(const QString &filename, ConversionData &err, const QString &format /* = "auto" */);
+    bool save(const QString &filename, ConversionData &err, const QString &format /* = "auto" */) const;
     bool release(QFile *iod, ConversionData &cd) const;
 
     int find(const TranslatorMessage &msg) const;