partially replaced obsolete qregexp - still stome places remain

src/core/feeddownloader.cpp

@@ -15,9 +15,8 @@
 #include <QThreadPool>
 
 FeedDownloader::FeedDownloader(QObject* parent)
-  : QObject(parent), m_feeds(QList<Feed*>()), m_mutex(new QMutex()), m_threadPool(new QThreadPool(this)),
+  : QObject(parent), m_mutex(new QMutex()), m_threadPool(new QThreadPool(this)),
-  m_results(FeedDownloadResults()), m_feedsUpdated(0),
+  m_feedsUpdated(0), m_feedsUpdating(0), m_feedsOriginalCount(0) {
-  m_feedsUpdating(0), m_feedsOriginalCount(0) {
   qRegisterMetaType<FeedDownloadResults>("FeedDownloadResults");
   m_threadPool->setMaxThreadCount(2);
 }
@@ -35,7 +34,7 @@ bool FeedDownloader::isUpdateRunning() const {
 
 void FeedDownloader::updateAvailableFeeds() {
   foreach (const Feed* feed, m_feeds) {
-    CacheForServiceRoot* cache = dynamic_cast<CacheForServiceRoot*>(feed->getParentServiceRoot());
+    auto* cache = dynamic_cast<CacheForServiceRoot*>(feed->getParentServiceRoot());
 
     if (cache != nullptr) {
       qDebug("Saving cache for feed with DB ID %d and title '%s'.", feed->id(), qPrintable(feed->title()));
@@ -130,8 +129,6 @@ void FeedDownloader::finalizeUpdate() {
   emit updateFinished(m_results);
 }
 
-FeedDownloadResults::FeedDownloadResults() : m_updatedFeeds(QList<QPair<QString, int>>()) {}
-
 QString FeedDownloadResults::overview(int how_many_feeds) const {
   QStringList result;
 
@@ -142,7 +139,7 @@ QString FeedDownloadResults::overview(int how_many_feeds) const {
   QString res_str = result.join(QSL("\n"));
 
   if (m_updatedFeeds.size() > how_many_feeds) {
-    res_str += QObject::tr("\n\n+ %n other feeds.", 0, m_updatedFeeds.size() - how_many_feeds);
+    res_str += QObject::tr("\n\n+ %n other feeds.", nullptr, m_updatedFeeds.size() - how_many_feeds);
   }
 
   return res_str;

src/core/feeddownloader.h

@@ -16,8 +16,6 @@ class QMutex;
 // Represents results of batch feed updates.
 class FeedDownloadResults {
   public:
-    explicit FeedDownloadResults();
-
     QList<QPair<QString, int>> updatedFeeds() const;
     QString overview(int how_many_feeds) const;
 

src/core/feedsmodel.cpp

@@ -56,7 +56,7 @@ FeedsModel::~FeedsModel() {
 }
 
 QMimeData* FeedsModel::mimeData(const QModelIndexList& indexes) const {
-  QMimeData* mime_data = new QMimeData();
+  auto* mime_data = new QMimeData();
   QByteArray encoded_data;
   QDataStream stream(&encoded_data, QIODevice::WriteOnly);
 
@@ -68,7 +68,7 @@ QMimeData* FeedsModel::mimeData(const QModelIndexList& indexes) const {
     RootItem* item_for_index = itemForIndex(index);
 
     if (item_for_index->kind() != RootItemKind::Root) {
-      stream << (quintptr) item_for_index;
+      stream << quintptr(item_for_index);
     }
   }
 
@@ -81,6 +81,7 @@ QStringList FeedsModel::mimeTypes() const {
   return QStringList() << QSL(MIME_TYPE_ITEM_POINTER);
 }
 
+typedef RootItem* RootItemPtr;
 bool FeedsModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column,
                               const QModelIndex& parent) {
   Q_UNUSED(row)
@@ -105,7 +106,7 @@ bool FeedsModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int
       quintptr pointer_to_item; stream >> pointer_to_item;
 
       // We have item we want to drag, we also determine the target item.
-      RootItem* dragged_item = (RootItem*) pointer_to_item;
+      auto* dragged_item = RootItemPtr(pointer_to_item);
       RootItem* target_item = itemForIndex(parent);
       ServiceRoot* dragged_item_root = dragged_item->getParentServiceRoot();
       ServiceRoot* target_item_root = target_item->getParentServiceRoot();
@@ -190,7 +191,7 @@ QModelIndex FeedsModel::index(int row, int column, const QModelIndex& parent) co
   RootItem* parent_item = itemForIndex(parent);
   RootItem* child_item = parent_item->child(row);
 
-  if (child_item) {
+  if (child_item != nullptr) {
     return createIndex(row, column, child_item);
   }
   else {

src/core/feedsproxymodel.cpp

@@ -10,8 +10,7 @@
 #include <QTimer>
 
 FeedsProxyModel::FeedsProxyModel(FeedsModel* source_model, QObject* parent)
-  : QSortFilterProxyModel(parent), m_sourceModel(source_model), m_selectedItem(nullptr),
+  : QSortFilterProxyModel(parent), m_sourceModel(source_model), m_selectedItem(nullptr), m_showUnreadOnly(false) {
-  m_showUnreadOnly(false), m_hiddenIndices(QList<QPair<int, QModelIndex>>()) {
   setObjectName(QSL("FeedsProxyModel"));
   setSortRole(Qt::EditRole);
   setSortCaseSensitivity(Qt::CaseInsensitive);
@@ -28,10 +27,10 @@ FeedsProxyModel::~FeedsProxyModel() {
 
 QModelIndexList FeedsProxyModel::match(const QModelIndex& start, int role, const QVariant& value, int hits, Qt::MatchFlags flags) const {
   QModelIndexList result;
-  const uint match_type = flags & 0x0F;
+  const int match_type = flags & 0x0F;
   const Qt::CaseSensitivity cs = Qt::CaseInsensitive;
-  const bool recurse = flags & Qt::MatchRecursive;
+  const bool recurse = (flags& Qt::MatchRecursive) > 0;
-  const bool wrap = flags & Qt::MatchWrap;
+  const bool wrap = (flags& Qt::MatchWrap) > 0;
   const bool all_hits = (hits == -1);
   QString entered_text;
   const QModelIndex p = parent(start);
@@ -66,14 +65,18 @@ QModelIndexList FeedsProxyModel::match(const QModelIndex& start, int role, const
 
         switch (match_type) {
           case Qt::MatchRegExp:
-            if (QRegExp(entered_text, cs).exactMatch(item_text)) {
+            if (QRegularExpression(entered_text,
+                                   QRegularExpression::PatternOption::CaseInsensitiveOption |
+                                   QRegularExpression::PatternOption::UseUnicodePropertiesOption).match(item_text).hasMatch()) {
               result.append(idx);
             }
 
             break;
 
           case Qt::MatchWildcard:
-            if (QRegExp(entered_text, cs, QRegExp::Wildcard).exactMatch(item_text)) {
+            if (QRegularExpression(QRegularExpression::wildcardToRegularExpression(entered_text),
+                                   QRegularExpression::PatternOption::CaseInsensitiveOption |
+                                   QRegularExpression::PatternOption::UseUnicodePropertiesOption).match(item_text).hasMatch()) {
               result.append(idx);
             }
 
@@ -112,8 +115,8 @@ QModelIndexList FeedsProxyModel::match(const QModelIndex& start, int role, const
 
       if (recurse && hasChildren(idx)) {
         result +=
-          match(index(0, idx.column(), idx), role, (entered_text.isEmpty() ? value : entered_text), (all_hits ? -1 : hits - result.count()),
+          match(index(0, idx.column(), idx), role, (entered_text.isEmpty() ? value : entered_text),
-                flags);
+                (all_hits ? -1 : hits - result.count()), flags);
       }
     }
 

src/core/message.cpp

@@ -6,7 +6,7 @@
 
 #include <QVariant>
 
-Enclosure::Enclosure(const QString& url, const QString& mime) : m_url(url), m_mimeType(mime) {}
+Enclosure::Enclosure(QString url, QString mime) : m_url(std::move(url)), m_mimeType(std::move(mime)) {}
 
 QList<Enclosure> Enclosures::decodeEnclosuresFromString(const QString& enclosures_data) {
   QList<Enclosure> enclosures;

src/core/message.h

@@ -13,7 +13,7 @@
 // Represents single enclosure.
 struct Enclosure {
   public:
-    explicit Enclosure(const QString& url = QString(), const QString& mime = QString());
+    explicit Enclosure(QString url = QString(), QString mime = QString());
 
     QString m_url;
     QString m_mimeType;
@@ -51,7 +51,7 @@ class Message {
 
     // Is true if "created" date was obtained directly
     // from the feed, otherwise is false
-    bool m_createdFromFeed;
+    bool m_createdFromFeed = false;
 
     friend inline bool operator==(const Message& lhs, const Message& rhs) {
       return lhs.m_accountId == rhs.m_accountId && lhs.m_id == rhs.m_id;

src/core/messagesproxymodel.cpp

@@ -78,7 +78,7 @@ QModelIndexList MessagesProxyModel::mapListFromSource(const QModelIndexList& ind
 QModelIndexList MessagesProxyModel::match(const QModelIndex& start, int role,
                                           const QVariant& entered_value, int hits, Qt::MatchFlags flags) const {
   QModelIndexList result;
-  const uint match_type = flags & 0x0F;
+  const int match_type = flags & 0x0F;
   const Qt::CaseSensitivity case_sensitivity = Qt::CaseInsensitive;
   const bool wrap = flags & Qt::MatchWrap;
   const bool all_hits = (hits == -1);
@@ -113,14 +113,18 @@ QModelIndexList MessagesProxyModel::match(const QModelIndex& start, int role,
 
         switch (match_type) {
           case Qt::MatchRegExp:
-            if (QRegExp(entered_text, case_sensitivity).exactMatch(item_text)) {
+            if (QRegularExpression(entered_text,
+                                   QRegularExpression::PatternOption::CaseInsensitiveOption |
+                                   QRegularExpression::PatternOption::UseUnicodePropertiesOption).match(item_text).hasMatch()) {
               result.append(idx);
             }
 
             break;
 
           case Qt::MatchWildcard:
-            if (QRegExp(entered_text, case_sensitivity, QRegExp::Wildcard).exactMatch(item_text)) {
+            if (QRegularExpression(QRegularExpression::wildcardToRegularExpression(entered_text),
+                                   QRegularExpression::PatternOption::CaseInsensitiveOption |
+                                   QRegularExpression::PatternOption::UseUnicodePropertiesOption).match(item_text).hasMatch()) {
               result.append(idx);
             }
 

src/gui/dialogs/formsettings.cpp

@@ -68,7 +68,8 @@ void FormSettings::applySettings() {
   }
 
   if (!panels_for_restart.isEmpty()) {
-    const QStringList changed_settings_description = panels_for_restart.replaceInStrings(QRegExp(QSL("^")), QString::fromUtf8(" • "));
+    const QStringList changed_settings_description = panels_for_restart.replaceInStrings(QRegularExpression(QSL("^")),
+                                                                                         QString::fromUtf8(" • "));
     const QMessageBox::StandardButton clicked_button = MessageBox::show(this,
                                                                         QMessageBox::Question,
                                                                         tr("Critical settings were changed"),
@@ -101,7 +102,8 @@ void FormSettings::cancelSettings() {
     reject();
   }
   else {
-    const QStringList changed_settings_description = changed_panels.replaceInStrings(QRegExp(QSL("^")), QString::fromUtf8(" • "));
+    const QStringList changed_settings_description = changed_panels.replaceInStrings(QRegularExpression(QSL("^")),
+                                                                                     QString::fromUtf8(" • "));
 
     if (MessageBox::show(this,
                          QMessageBox::Critical,

src/gui/messagepreviewer.cpp

@@ -241,15 +241,16 @@ QString MessagePreviewer::prepareHtmlForMessage(const Message& message) {
     html += QString("[%2] <a href=\"%1\">%1</a><br/>").arg(enc_url, enc.m_mimeType);
   }
 
-  int offset = 0;
+  QRegularExpression imgTagRegex("\\<img[^\\>]*src\\s*=\\s*\"([^\"]*)\"[^\\>]*\\>",
-  QRegExp imgTagRegex("\\<img[^\\>]*src\\s*=\\s*\"([^\"]*)\"[^\\>]*\\>", Qt::CaseInsensitive);
+                                 QRegularExpression::PatternOption::CaseInsensitiveOption |
+                                 QRegularExpression::PatternOption::InvertedGreedinessOption);
+  QRegularExpressionMatchIterator i = imgTagRegex.globalMatch(message.m_contents);
 
-  imgTagRegex.setMinimal(true);
+  while (i.hasNext()) {
+    QRegularExpressionMatch match = i.next();
 
-  while ((offset = imgTagRegex.indexIn(message.m_contents, offset)) != -1) {
+    m_pictures.append(match.captured(1));
-    m_pictures.append(imgTagRegex.cap(1));
+    html += QString("[%1] <a href=\"%2\">%2</a><br/>").arg(tr("image"), match.captured(1));
-    offset += imgTagRegex.matchedLength();
-    html += QString("[%2] <a href=\"%1\">%1</a><br/>").arg(imgTagRegex.cap(1), tr("image"));
   }
 
   html += "<br/>";

src/gui/timespinbox.cpp

@@ -21,13 +21,14 @@ double TimeSpinBox::valueFromText(const QString& text) const {
     return value;
   }
   else {
-    QRegExp rx("\\b[0-9]{1,}\\b");
+    QRegularExpression rx("\\b[0-9]{1,}\\b");
     QStringList numbers;
     int pos = 0;
     int count = 0;
+    QRegularExpressionMatchIterator i = rx.globalMatch(text);
 
-    while ((pos = rx.indexIn(text, pos)) != -1) {
+    while (i.hasNext()) {
-      numbers.append(rx.cap(0));
+      numbers.append(i.next().captured());
 
       if (pos >= 0) {
         ++pos;
@@ -45,7 +46,7 @@ double TimeSpinBox::valueFromText(const QString& text) const {
 }
 
 QString TimeSpinBox::textFromValue(double val) const {
-  int minutes_total = (int)val;
+  int minutes_total = int(val);
   int minutes_val = minutes_total % 60;
   int hours_val = (minutes_total - minutes_val) / 60;
   QString hours = tr("%n hour(s)", "", hours_val);

src/miscellaneous/iconfactory.cpp

@@ -55,8 +55,8 @@ void IconFactory::setupSearchPaths() {
   QIcon::setThemeSearchPaths(QIcon::themeSearchPaths() << APP_THEME_PATH);
   qDebug("Available icon theme paths: %s.",
          qPrintable(QIcon::themeSearchPaths()
-                    .replaceInStrings(QRegExp(QSL("^|$")), QSL("\'"))
+                    .replaceInStrings(QRegularExpression(QSL("^|$")), QSL("\'"))
-                    .replaceInStrings(QRegExp(QSL("/")), QDir::separator()).join(QSL(", "))));
+                    .replaceInStrings(QRegularExpression(QSL("/")), QDir::separator()).join(QSL(", "))));
 }
 
 void IconFactory::setCurrentIconTheme(const QString& theme_name) {
@@ -75,8 +75,8 @@ void IconFactory::loadCurrentIconTheme() {
   // Display list of installed themes.
   qDebug("Installed icon themes are: %s.",
          qPrintable(QStringList(installed_themes)
-                    .replaceInStrings(QRegExp(QSL("^|$")), QSL("\'"))
+                    .replaceInStrings(QRegularExpression(QSL("^|$")), QSL("\'"))
-                    .replaceInStrings(QRegExp(QSL("^\\'$")), QSL("\'\'")).join(QSL(", "))));
+                    .replaceInStrings(QRegularExpression(QSL("^\\'$")), QSL("\'\'")).join(QSL(", "))));
 
   if (installed_themes.contains(theme_name_from_settings)) {
     // Desired icon theme is installed and can be loaded.

src/network-web/downloader.cpp

@@ -70,7 +70,7 @@ void Downloader::manipulateData(const QString& url,
 
   if (non_const_url.startsWith(URI_SCHEME_FEED)) {
     qDebug("Replacing URI schemes for '%s'.", qPrintable(non_const_url));
-    request.setUrl(non_const_url.replace(QRegExp(QString('^') + URI_SCHEME_FEED), QString(URI_SCHEME_HTTP)));
+    request.setUrl(non_const_url.replace(QRegularExpression(QString('^') + URI_SCHEME_FEED), QString(URI_SCHEME_HTTP)));
   }
   else {
     request.setUrl(non_const_url);

src/network-web/webfactory.cpp

@@ -7,7 +7,6 @@
 
 #include <QDesktopServices>
 #include <QProcess>
-#include <QRegExp>
 #include <QUrl>
 
 #if defined (USE_WEBENGINE)
@@ -67,7 +66,7 @@ bool WebFactory::openUrlInExternalBrowser(const QString& url) const {
 }
 
 QString WebFactory::stripTags(QString text) {
-  return text.remove(QRegExp(QSL("<[^>]*>")));
+  return text.remove(QRegularExpression(QSL("<[^>]*>")));
 }
 
 QString WebFactory::escapeHtml(const QString& html) {

src/qtsingleapplication/qtlocalpeer.cpp

@@ -41,6 +41,7 @@
 #include "qtlocalpeer.h"
 #include <QCoreApplication>
 #include <QDataStream>
+#include <QRegularExpression>
 #include <QTime>
 
 #if defined(Q_OS_WIN)
@@ -81,7 +82,7 @@ QtLocalPeer::QtLocalPeer(QObject* parent, const QString& appId)
     prefix = id.section(QLatin1Char('/'), -1);
   }
 
-  prefix.remove(QRegExp("[^a-zA-Z]"));
+  prefix.remove(QRegularExpression("[^a-zA-Z]"));
   prefix.truncate(6);
   QByteArray idc = id.toUtf8();
   quint16 idNum = qChecksum(idc.constData(), idc.size());

src/services/abstract/feed.cpp

@@ -185,10 +185,10 @@ void Feed::run() {
     msgs[i].m_title = QUrl::fromPercentEncoding(msgs[i].m_title.toUtf8())
 
                       // Replace all continuous white space.
-                      .replace(QRegExp(QSL("[\\s]{2,}")), QSL(" "))
+                      .replace(QRegularExpression(QSL("[\\s]{2,}")), QSL(" "))
 
                       // Remove all newlines and leading white space.
-                      .remove(QRegExp(QSL("([\\n\\r])|(^\\s)")));
+                      .remove(QRegularExpression(QSL("([\\n\\r])|(^\\s)")));
   }
 
   emit messagesObtained(msgs, error_during_obtaining);

src/services/abstract/gui/formfeeddetails.cpp

@@ -107,7 +107,7 @@ void FormFeedDetails::onDescriptionChanged(const QString& new_description) {
 }
 
 void FormFeedDetails::onUrlChanged(const QString& new_url) {
-  if (QRegExp(URL_REGEXP).exactMatch(new_url)) {
+  if (QRegularExpression(URL_REGEXP).match(new_url).hasMatch()) {
     // New url is well-formed.
     m_ui->m_txtUrl->setStatus(LineEditWithStatus::Ok, tr("The URL is ok."));
   }