Replaced some qsl with u""_q literal.

Telegram/SourceFiles/api/api_authorizations.cpp

@@ -34,8 +34,8 @@ Authorizations::Entry ParseEntry(const MTPDauthorization &data) {
 		|| isTest;
 
 	const auto appName = isDesktop
-		? QString("Telegram Desktop%1").arg(isTest ? " (GitHub)" : QString())
+		? u"Telegram Desktop%1"_q.arg(isTest ? " (GitHub)" : QString())
-		: qs(data.vapp_name());// +qsl(" for ") + qs(d.vplatform());
+		: qs(data.vapp_name());// + u" for "_q + qs(d.vplatform());
 	const auto appVer = [&] {
 		const auto version = qs(data.vapp_version());
 		if (isDesktop) {

Telegram/SourceFiles/apiwrap.cpp

@@ -486,7 +486,7 @@ void ApiWrap::sendMessageFail(
 	} else if (error == u"USER_BANNED_IN_CHANNEL"_q) {
 		const auto link = Ui::Text::Link(
 			tr::lng_cant_more_info(tr::now),
-			session().createInternalLinkFull(qsl("spambot")));
+			session().createInternalLinkFull(u"spambot"_q));
 		show->showBox(
 			Ui::MakeInformBox(
 				tr::lng_error_public_groups_denied(
@@ -734,7 +734,7 @@ QString ApiWrap::exportDirectMessageLink(
 			if (const auto media = item->media()) {
 				if (const auto document = media->document()) {
 					if (document->isVideoMessage()) {
-						return qsl("https://telesco.pe/") + query;
+						return u"https://telesco.pe/"_q + query;
 					}
 				}
 			}

Telegram/SourceFiles/boxes/add_contact_box.cpp

@@ -53,14 +53,14 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace {
 
 bool IsValidPhone(QString phone) {
-	phone = phone.replace(QRegularExpression(qsl("[^\\d]")), QString());
+	phone = phone.replace(QRegularExpression(u"[^\\d]"_q), QString());
 	return (phone.length() >= 8)
-		|| (phone == qsl("333"))
+		|| (phone == u"333"_q)
-		|| (phone.startsWith(qsl("42"))
+		|| (phone.startsWith(u"42"_q)
 			&& (phone.length() == 2
 				|| phone.length() == 5
 				|| phone.length() == 6
-				|| phone == qsl("4242")));
+				|| phone == u"4242"_q));
 }
 
 void ChatCreateDone(
@@ -112,7 +112,7 @@ TextWithEntities PeerFloodErrorText(
 		PeerFloodType type) {
 	const auto link = Ui::Text::Link(
 		tr::lng_cant_more_info(tr::now),
-		session->createInternalLinkFull(qsl("spambot")));
+		session->createInternalLinkFull(u"spambot"_q));
 	return ((type == PeerFloodType::InviteGroup)
 		? tr::lng_cant_invite_not_contact
 		: tr::lng_cant_send_to_not_contact)(

Telegram/SourceFiles/boxes/connection_box.cpp

@@ -1092,17 +1092,17 @@ ProxiesBoxController::ProxiesBoxController(not_null<Main::Account*> account)
 void ProxiesBoxController::ShowApplyConfirmation(
 		Type type,
 		const QMap<QString, QString> &fields) {
-	const auto server = fields.value(qsl("server"));
+	const auto server = fields.value(u"server"_q);
-	const auto port = fields.value(qsl("port")).toUInt();
+	const auto port = fields.value(u"port"_q).toUInt();
 	auto proxy = ProxyData();
 	proxy.type = type;
 	proxy.host = server;
 	proxy.port = port;
 	if (type == Type::Socks5) {
-		proxy.user = fields.value(qsl("user"));
+		proxy.user = fields.value(u"user"_q);
-		proxy.password = fields.value(qsl("pass"));
+		proxy.password = fields.value(u"pass"_q);
 	} else if (type == Type::Mtproto) {
-		proxy.password = fields.value(qsl("secret"));
+		proxy.password = fields.value(u"secret"_q);
 	}
 	if (proxy) {
 		const auto displayed = "https://" + server + "/";
@@ -1504,12 +1504,9 @@ void ProxiesBoxController::updateView(const Item &item) {
 	const auto deleted = item.deleted;
 	const auto type = [&] {
 		switch (item.data.type) {
-		case Type::Http:
+		case Type::Http: return u"HTTP"_q;
-			return qsl("HTTP");
+		case Type::Socks5: return u"SOCKS5"_q;
-		case Type::Socks5:
+		case Type::Mtproto: return u"MTPROTO"_q;
-			return qsl("SOCKS5");
-		case Type::Mtproto:
-			return qsl("MTPROTO");
 		}
 		Unexpected("Proxy type in ProxiesBoxController::updateView.");
 	}();
@@ -1541,7 +1538,7 @@ void ProxiesBoxController::share(const ProxyData &proxy) {
 	if (proxy.type == Type::Http) {
 		return;
 	}
-	const auto link = qsl("https://t.me/")
+	const auto link = u"https://t.me/"_q
 		+ (proxy.type == Type::Socks5 ? "socks" : "proxy")
 		+ "?server=" + proxy.host + "&port=" + QString::number(proxy.port)
 		+ ((proxy.type == Type::Socks5 && !proxy.user.isEmpty())

Telegram/SourceFiles/boxes/download_path_box.cpp

@@ -40,7 +40,7 @@ void DownloadPathBox::prepare() {
 	_group->setChangedCallback([this](Directory value) { radioChanged(value); });
 
 	_pathLink->addClickHandler([=] { editPath(); });
-	if (!_path.isEmpty() && _path != qsl("tmp")) {
+	if (!_path.isEmpty() && _path != u"tmp"_q) {
 		setPathText(QDir::toNativeSeparators(_path));
 	}
 	updateControlsVisibility();
@@ -73,14 +73,14 @@ void DownloadPathBox::resizeEvent(QResizeEvent *e) {
 
 void DownloadPathBox::radioChanged(Directory value) {
 	if (value == Directory::Custom) {
-		if (_path.isEmpty() || _path == qsl("tmp")) {
+		if (_path.isEmpty() || _path == u"tmp"_q) {
 			_group->setValue(_path.isEmpty() ? Directory::Downloads : Directory::Temp);
 			editPath();
 		} else {
 			setPathText(QDir::toNativeSeparators(_path));
 		}
 	} else if (value == Directory::Temp) {
-		_path = qsl("tmp");
+		_path = u"tmp"_q;
 	} else {
 		_path = QString();
 	}

Telegram/SourceFiles/boxes/download_path_box.h

@@ -42,7 +42,7 @@ private:
 	Directory typeFromPath(const QString &path) {
 		if (path.isEmpty()) {
 			return Directory::Downloads;
-		} else if (path == qsl("tmp")) {
+		} else if (path == u"tmp"_q) {
 			return Directory::Temp;
 		}
 		return Directory::Custom;

Telegram/SourceFiles/boxes/filters/edit_filter_chats_list.cpp

@@ -463,6 +463,6 @@ auto EditFilterChatsListController::createRow(not_null<History*> history)
 void EditFilterChatsListController::updateTitle() {
 	const auto count = delegate()->peerListSelectedRowsCount()
 		- selectedTypesCount();
-	const auto additional = qsl("%1 / %2").arg(count).arg(_limit);
+	const auto additional = u"%1 / %2"_q.arg(count).arg(_limit);
 	delegate()->peerListSetAdditionalTitle(rpl::single(additional));
 }

Telegram/SourceFiles/boxes/language_box.cpp

@@ -416,7 +416,7 @@ bool Rows::hasMenu(not_null<const Row*> row) const {
 }
 
 void Rows::share(not_null<const Row*> row) const {
-	const auto link = qsl("https://t.me/setlanguage/") + row->data.id;
+	const auto link = u"https://t.me/setlanguage/"_q + row->data.id;
 	QGuiApplication::clipboard()->setText(link);
 	Ui::Toast::Show(tr::lng_username_copied(tr::now));
 }

Telegram/SourceFiles/boxes/peers/add_participants_box.cpp

@@ -166,7 +166,7 @@ void AddParticipantsBoxController::updateTitle() {
 		&& _peer->isChannel()
 		&& !_peer->isMegagroup())
 		? QString()
-		: qsl("%1 / %2"
+		: (u"%1 / %2"_q
 		).arg(fullCount()
 		).arg(session().serverConfig().megagroupSizeMax);
 	delegate()->peerListSetTitle(tr::lng_profile_add_participant());

Telegram/SourceFiles/boxes/share_box.cpp

@@ -693,7 +693,7 @@ ShareBox::Inner::Inner(
 	}
 	addList(_descriptor.session->data().contactsNoChatsList());
 
-	_filter = qsl("a");
+	_filter = u"a"_q;
 	updateFilter();
 
 	_descriptor.session->changes().peerUpdates(
@@ -1325,9 +1325,9 @@ QString AppendShareGameScoreUrl(
 	}
 
 	auto shareHash = shareHashEncrypted.toBase64(QByteArray::Base64UrlEncoding | QByteArray::OmitTrailingEquals);
-	auto shareUrl = qsl("tg://share_game_score?hash=") + QString::fromLatin1(shareHash);
+	auto shareUrl = u"tg://share_game_score?hash="_q + QString::fromLatin1(shareHash);
 
-	auto shareComponent = qsl("tgShareScoreUrl=") + qthelp::url_encode(shareUrl);
+	auto shareComponent = u"tgShareScoreUrl="_q + qthelp::url_encode(shareUrl);
 
 	auto hashPosition = url.indexOf('#');
 	if (hashPosition < 0) {
@@ -1391,7 +1391,7 @@ void FastShareMessage(
 			if (const auto media = item->media()) {
 				if (const auto game = media->game()) {
 					const auto link = session->createInternalLinkFull(
-						bot->username() + qsl("?game=") + game->shortName);
+						bot->username() + u"?game="_q + game->shortName);
 
 					QGuiApplication::clipboard()->setText(link);
 

Telegram/SourceFiles/boxes/stickers_box.cpp

@@ -1179,13 +1179,13 @@ StickersBox::Inner::Inner(
 , _megagroupSetField(
 	this,
 	st::groupStickersField,
-	rpl::single(qsl("stickerset")),
+	rpl::single(u"stickerset"_q),
 	QString(),
 	_controller->session().createInternalLink(QString()))
 , _megagroupDivider(this)
 , _megagroupSubTitle(this, tr::lng_stickers_group_from_your(tr::now), st::boxTitle) {
 	_megagroupSetField->setLinkPlaceholder(
-		_controller->session().createInternalLink(qsl("addstickers/")));
+		_controller->session().createInternalLink(u"addstickers/"_q));
 	_megagroupSetField->setPlaceholderHidden(false);
 	_megagroupSetAddressChangedTimer.setCallback([this] { handleMegagroupSetAddressChange(); });
 	connect(

Telegram/SourceFiles/calls/calls_call.cpp

@@ -500,8 +500,8 @@ void Call::startWaitingTrack() {
 	_waitingTrack = Media::Audio::Current().createTrack();
 	const auto trackFileName = Core::App().settings().getSoundPath(
 		(_type == Type::Outgoing)
-		? qsl("call_outgoing")
+		? u"call_outgoing"_q
-		: qsl("call_incoming"));
+		: u"call_incoming"_q);
 	_waitingTrack->samplePeakEach(kSoundSampleMs);
 	_waitingTrack->fillFromFile(trackFileName);
 	_waitingTrack->playInLoop();
@@ -893,8 +893,8 @@ void Call::createAndStartController(const MTPDphoneCall &call) {
 			settings.callAudioBackend()),
 	};
 	if (Logs::DebugEnabled()) {
-		const auto callLogFolder = cWorkingDir() + qsl("DebugLogs");
+		const auto callLogFolder = cWorkingDir() + u"DebugLogs"_q;
-		const auto callLogPath = callLogFolder + qsl("/last_call_log.txt");
+		const auto callLogPath = callLogFolder + u"/last_call_log.txt"_q;
 		const auto callLogNative = QDir::toNativeSeparators(callLogPath);
 #ifdef Q_OS_WIN
 		descriptor.config.logPath.data = callLogNative.toStdWString();

Telegram/SourceFiles/calls/calls_top_bar.cpp

@@ -147,7 +147,7 @@ DebugInfoBox::DebugInfoBox(QWidget*, base::weak_ptr<Call> call)
 }
 
 void DebugInfoBox::prepare() {
-	setTitle(rpl::single(qsl("Call Debug")));
+	setTitle(rpl::single(u"Call Debug"_q));
 
 	addButton(tr::lng_close(), [this] { closeBox(); });
 	_text = setInnerWidget(

Telegram/SourceFiles/calls/group/calls_group_call.cpp

@@ -2427,8 +2427,8 @@ bool GroupCall::tryCreateController() {
 		},
 	};
 	if (Logs::DebugEnabled()) {
-		auto callLogFolder = cWorkingDir() + qsl("DebugLogs");
+		auto callLogFolder = cWorkingDir() + u"DebugLogs"_q;
-		auto callLogPath = callLogFolder + qsl("/last_group_call_log.txt");
+		auto callLogPath = callLogFolder + u"/last_group_call_log.txt"_q;
 		auto callLogNative = QDir::toNativeSeparators(callLogPath);
 		descriptor.config.need_log = true;
 #ifdef Q_OS_WIN

Telegram/SourceFiles/chat_helpers/emoji_sets_manager.cpp

@@ -36,7 +36,7 @@ struct Set : public Blob {
 };
 
 inline auto PreviewPath(int i) {
-	return qsl(":/gui/emoji/set%1_preview.webp").arg(i);
+	return u":/gui/emoji/set%1_preview.webp"_q.arg(i);
 }
 
 const auto kSets = {

Telegram/SourceFiles/chat_helpers/field_autocomplete.cpp

@@ -693,7 +693,7 @@ void FieldAutocomplete::hideAnimated() {
 void FieldAutocomplete::hideFinish() {
 	hide();
 	_hiding = false;
-	_filter = qsl("-");
+	_filter = u"-"_q;
 	_inner->clearSel(true);
 }
 

Telegram/SourceFiles/chat_helpers/message_field.cpp

@@ -225,7 +225,7 @@ void EditLinkBox(
 
 TextWithEntities StripSupportHashtag(TextWithEntities &&text) {
 	static const auto expression = QRegularExpression(
-		qsl("\\n?#tsf[a-z0-9_-]*[\\s#a-z0-9_-]*$"),
+		u"\\n?#tsf[a-z0-9_-]*[\\s#a-z0-9_-]*$"_q,
 		QRegularExpression::CaseInsensitiveOption);
 	const auto match = expression.match(text.text);
 	if (!match.hasMatch()) {

Telegram/SourceFiles/chat_helpers/spellchecker_common.cpp

@@ -245,13 +245,13 @@ MTP::DedicatedLoader::Location GetDownloadLocation(int id) {
 
 QString DictPathByLangId(int langId) {
 	EnsurePath();
-	return qsl("%1/%2").arg(
+	return u"%1/%2"_q.arg(
 		DictionariesPath(),
 		Spellchecker::LocaleFromLangId(langId).name());
 }
 
 QString DictionariesPath() {
-	return cWorkingDir() + qsl("tdata/dictionaries");
+	return cWorkingDir() + u"tdata/dictionaries"_q;
 }
 
 bool UnpackDictionary(const QString &path, int langId) {
@@ -275,7 +275,7 @@ bool RemoveDictionary(int langId) {
 		return true;
 	}
 	const auto fileName = Spellchecker::LocaleFromLangId(langId).name();
-	const auto folder = qsl("%1/%2/").arg(
+	const auto folder = u"%1/%2/"_q.arg(
 		DictionariesPath(),
 		fileName);
 	return QDir(folder).removeRecursively();
@@ -288,14 +288,14 @@ bool WriteDefaultDictionary() {
 		return false;
 	}
 	const auto fileName = QLocale(en).name();
-	const auto folder = qsl("%1/%2/").arg(
+	const auto folder = u"%1/%2/"_q.arg(
 		DictionariesPath(),
 		fileName);
 	QDir(folder).removeRecursively();
 
 	const auto path = folder + fileName;
 	QDir().mkpath(folder);
-	auto input = QFile(qsl(":/misc/en_US_dictionary"));
+	auto input = QFile(u":/misc/en_US_dictionary"_q);
 	auto output = QFile(path);
 	if (input.open(QIODevice::ReadOnly)
 		&& output.open(QIODevice::WriteOnly)) {

Telegram/SourceFiles/config.h

@@ -108,7 +108,7 @@ static const char *AlphaPrivateKey = "";
 extern QString gKeyFile;
 inline const QString &cDataFile() {
 	if (!gKeyFile.isEmpty()) return gKeyFile;
-	static const QString res(qsl("data"));
+	static const QString res(u"data"_q);
 	return res;
 }
 

Telegram/SourceFiles/core/application.cpp

@@ -290,7 +290,7 @@ void Application::run() {
 	DEBUG_LOG(("Application Info: starting app..."));
 
 	// Create mime database, so it won't be slow later.
-	QMimeDatabase().mimeTypeForName(qsl("text/plain"));
+	QMimeDatabase().mimeTypeForName(u"text/plain"_q);
 
 	_primaryWindow = std::make_unique<Window::Controller>();
 	_lastActiveWindow = _primaryWindow.get();
@@ -863,10 +863,10 @@ void Application::switchDebugMode() {
 
 void Application::switchFreeType() {
 	if (cUseFreeType()) {
-		QFile(cWorkingDir() + qsl("tdata/withfreetype")).remove();
+		QFile(cWorkingDir() + u"tdata/withfreetype"_q).remove();
 		cSetUseFreeType(false);
 	} else {
-		QFile f(cWorkingDir() + qsl("tdata/withfreetype"));
+		QFile f(cWorkingDir() + u"tdata/withfreetype"_q);
 		if (f.open(QIODevice::WriteOnly)) {
 			f.write("1");
 			f.close();
@@ -1471,11 +1471,11 @@ void Application::RegisterUrlScheme() {
 	base::Platform::RegisterUrlScheme(base::Platform::UrlSchemeDescriptor{
 		.executable = cExeDir() + cExeName(),
 		.arguments = Sandbox::Instance().customWorkingDir()
-			? qsl("-workdir \"%1\"").arg(cWorkingDir())
+			? u"-workdir \"%1\""_q.arg(cWorkingDir())
 			: QString(),
-		.protocol = qsl("tg"),
+		.protocol = u"tg"_q,
-		.protocolName = qsl("Telegram Link"),
+		.protocolName = u"Telegram Link"_q,
-		.shortAppName = qsl("tdesktop"),
+		.shortAppName = u"tdesktop"_q,
 		.longAppName = QCoreApplication::applicationName(),
 		.displayAppName = AppName.utf16(),
 		.displayAppDescription = AppName.utf16(),

Telegram/SourceFiles/core/changelogs.cpp

@@ -180,7 +180,7 @@ void Changelogs::addBetaLog(int changeVersion, const char *changes) {
 		return result.replace(simple, separator);
 	}();
 	const auto version = FormatVersionDisplay(changeVersion);
-	const auto log = qsl("New in version %1 beta:\n\n").arg(version) + text;
+	const auto log = u"New in version %1 beta:\n\n"_q.arg(version) + text;
 	addLocalLog(log);
 }
 

Telegram/SourceFiles/core/core_settings.cpp

@@ -739,7 +739,7 @@ QString Settings::getSoundPath(const QString &key) const {
 	if (it != _soundOverrides.end()) {
 		return it->second;
 	}
-	return qsl(":/sounds/") + key + qsl(".mp3");
+	return u":/sounds/"_q + key + u".mp3"_q;
 }
 
 void Settings::setTabbedSelectorSectionEnabled(bool enabled) {

Telegram/SourceFiles/core/crash_report_window.cpp

@@ -37,7 +37,7 @@ PreLaunchWindow::PreLaunchWindow(QString title) {
 	setWindowIcon(Window::CreateIcon());
 	setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowCloseButtonHint);
 
-	setWindowTitle(title.isEmpty() ? qsl("Telegram") : title);
+	setWindowTitle(title.isEmpty() ? u"Telegram"_q : title);
 
 	QPalette p(palette());
 	p.setColor(QPalette::Window, QColor(255, 255, 255));
@@ -48,7 +48,7 @@ PreLaunchWindow::PreLaunchWindow(QString title) {
 	int paddingVertical = (_size / 2);
 	int paddingHorizontal = _size;
 	int borderRadius = (_size / 5);
-	setStyleSheet(qsl("QPushButton { padding: %1px %2px; background-color: #ffffff; border-radius: %3px; }\nQPushButton#confirm:hover, QPushButton#cancel:hover { background-color: #e3f1fa; color: #2f9fea; }\nQPushButton#confirm { color: #2f9fea; }\nQPushButton#cancel { color: #aeaeae; }\nQLineEdit { border: 1px solid #e0e0e0; padding: 5px; }\nQLineEdit:focus { border: 2px solid #37a1de; padding: 4px; }").arg(paddingVertical).arg(paddingHorizontal).arg(borderRadius));
+	setStyleSheet(u"QPushButton { padding: %1px %2px; background-color: #ffffff; border-radius: %3px; }\nQPushButton#confirm:hover, QPushButton#cancel:hover { background-color: #e3f1fa; color: #2f9fea; }\nQPushButton#confirm { color: #2f9fea; }\nQPushButton#cancel { color: #aeaeae; }\nQLineEdit { border: 1px solid #e0e0e0; padding: 5px; }\nQLineEdit:focus { border: 2px solid #37a1de; padding: 4px; }"_q.arg(paddingVertical).arg(paddingHorizontal).arg(borderRadius));
 	if (!PreLaunchWindowInstance) {
 		PreLaunchWindowInstance = this;
 	}
@@ -179,12 +179,12 @@ NotStartedWindow::NotStartedWindow()
 : _label(this)
 , _log(this)
 , _close(this) {
-	_label.setText(qsl("Could not start Telegram Desktop!\nYou can see complete log below:"));
+	_label.setText(u"Could not start Telegram Desktop!\nYou can see complete log below:"_q);
 
 	_log.setPlainText(Logs::full());
 
 	connect(&_close, &QPushButton::clicked, [=] { close(); });
-	_close.setText(qsl("CLOSE"));
+	_close.setText(u"CLOSE"_q);
 
 	QRect scr(QApplication::primaryScreen()->availableGeometry());
 	move(scr.x() + (scr.width() / 6), scr.y() + (scr.height() / 6));
@@ -261,9 +261,9 @@ LastCrashedWindow::LastCrashedWindow(
 	}
 	if (_sendingState != SendingNoReport) {
 		qint64 dumpsize = 0;
-		QString dumpspath = cWorkingDir() + qsl("tdata/dumps");
+		QString dumpspath = cWorkingDir() + u"tdata/dumps"_q;
 #if defined Q_OS_MAC && !defined MAC_USE_BREAKPAD
-		dumpspath += qsl("/completed");
+		dumpspath += u"/completed"_q;
 #endif
 		QString possibleDump = getReportField(qstr("minidump"), qstr("Minidump:"));
 		if (!possibleDump.isEmpty()) {
@@ -271,7 +271,7 @@ LastCrashedWindow::LastCrashedWindow(
 				possibleDump = dumpspath + '/' + possibleDump;
 			}
 			if (!possibleDump.endsWith(qstr(".dmp"))) {
-				possibleDump += qsl(".dmp");
+				possibleDump += u".dmp"_q;
 			}
 			QFileInfo possibleInfo(possibleDump);
 			if (possibleInfo.exists()) {
@@ -282,7 +282,7 @@ LastCrashedWindow::LastCrashedWindow(
 		}
 		if (_minidumpFull.isEmpty()) {
 			QString maxDump, maxDumpFull;
-			QDateTime maxDumpModified, workingModified = QFileInfo(cWorkingDir() + qsl("tdata/working")).lastModified();
+			QDateTime maxDumpModified, workingModified = QFileInfo(cWorkingDir() + u"tdata/working"_q).lastModified();
 			QFileInfoList list = QDir(dumpspath).entryInfoList();
 			for (int32 i = 0, l = list.size(); i < l; ++i) {
 				QString name = list.at(i).fileName();
@@ -304,36 +304,36 @@ LastCrashedWindow::LastCrashedWindow(
 		if (_minidumpName.isEmpty()) { // currently don't accept crash reports without dumps from google libraries
 			_sendingState = SendingNoReport;
 		} else {
-			_minidump.setText(qsl("+ %1 (%2 KB)").arg(_minidumpName).arg(dumpsize / 1024));
+			_minidump.setText(u"+ %1 (%2 KB)"_q.arg(_minidumpName).arg(dumpsize / 1024));
 		}
 	}
 	if (_sendingState != SendingNoReport) {
 		QString version = getReportField(qstr("version"), qstr("Version:"));
-		QString current = cAlphaVersion() ? qsl("-%1").arg(cAlphaVersion()) : QString::number(AppVersion);
+		QString current = cAlphaVersion() ? u"-%1"_q.arg(cAlphaVersion()) : QString::number(AppVersion);
 		if (version != current) { // currently don't accept crash reports from not current app version
 			_sendingState = SendingNoReport;
 		}
 	}
 
-	_networkSettings.setText(qsl("NETWORK SETTINGS"));
+	_networkSettings.setText(u"NETWORK SETTINGS"_q);
 	connect(
 		&_networkSettings,
 		&QPushButton::clicked,
 		[=] { networkSettings(); });
 
 	if (_sendingState == SendingNoReport) {
-		_label.setText(qsl("Last time Telegram Desktop was not closed properly."));
+		_label.setText(u"Last time Telegram Desktop was not closed properly."_q);
 	} else {
-		_label.setText(qsl("Last time Telegram Desktop crashed :("));
+		_label.setText(u"Last time Telegram Desktop crashed :("_q);
 	}
 
 	if (_updaterData) {
-		_updaterData->check.setText(qsl("TRY AGAIN"));
+		_updaterData->check.setText(u"TRY AGAIN"_q);
 		connect(
 			&_updaterData->check,
 			&QPushButton::clicked,
 			[=] { updateRetry(); });
-		_updaterData->skip.setText(qsl("SKIP"));
+		_updaterData->skip.setText(u"SKIP"_q);
 		connect(
 			&_updaterData->skip,
 			&QPushButton::clicked,
@@ -393,39 +393,39 @@ LastCrashedWindow::LastCrashedWindow(
 		cSetLastUpdateCheck(0);
 		checker.start();
 	} else {
-		_updating.setText(qsl("Please check if there is a new version available."));
+		_updating.setText(u"Please check if there is a new version available."_q);
 		if (_sendingState != SendingNoReport) {
 			_sendingState = SendingNone;
 		}
 	}
 
-	_pleaseSendReport.setText(qsl("Please send us a crash report."));
+	_pleaseSendReport.setText(u"Please send us a crash report."_q);
-	_yourReportName.setText(qsl("Your Report Tag: %1\nYour User Tag: %2").arg(QString(_minidumpName).replace(".dmp", "")).arg(launcher->installationTag(), 0, 16));
+	_yourReportName.setText(u"Your Report Tag: %1\nYour User Tag: %2"_q.arg(QString(_minidumpName).replace(".dmp", "")).arg(launcher->installationTag(), 0, 16));
 	_yourReportName.setCursor(style::cur_text);
 	_yourReportName.setTextInteractionFlags(Qt::TextSelectableByMouse);
 
-	_includeUsername.setText(qsl("Include username @%1 as your contact info").arg(_reportUsername));
+	_includeUsername.setText(u"Include username @%1 as your contact info"_q.arg(_reportUsername));
 
 	_report.setPlainText(_reportTextNoUsername);
 
-	_showReport.setText(qsl("VIEW REPORT"));
+	_showReport.setText(u"VIEW REPORT"_q);
 	connect(&_showReport, &QPushButton::clicked, [=] {
 		_reportShown = !_reportShown;
 		updateControls();
 	});
-	_saveReport.setText(qsl("SAVE TO FILE"));
+	_saveReport.setText(u"SAVE TO FILE"_q);
 	connect(&_saveReport, &QPushButton::clicked, [=] { saveReport(); });
-	_getApp.setText(qsl("GET THE LATEST OFFICIAL VERSION OF TELEGRAM DESKTOP"));
+	_getApp.setText(u"GET THE LATEST OFFICIAL VERSION OF TELEGRAM DESKTOP"_q);
 	connect(&_getApp, &QPushButton::clicked, [=] {
-		QDesktopServices::openUrl(qsl("https://desktop.telegram.org"));
+		QDesktopServices::openUrl(u"https://desktop.telegram.org"_q);
 	});
 
-	_send.setText(qsl("SEND CRASH REPORT"));
+	_send.setText(u"SEND CRASH REPORT"_q);
 	connect(&_send, &QPushButton::clicked, [=] { sendReport(); });
 
-	_sendSkip.setText(qsl("SKIP"));
+	_sendSkip.setText(u"SKIP"_q);
 	connect(&_sendSkip, &QPushButton::clicked, [=] { processContinue(); });
-	_continue.setText(qsl("CONTINUE"));
+	_continue.setText(u"CONTINUE"_q);
 	connect(&_continue, &QPushButton::clicked, [=] { processContinue(); });
 
 	QRect scr(QApplication::primaryScreen()->availableGeometry());
@@ -435,7 +435,7 @@ LastCrashedWindow::LastCrashedWindow(
 }
 
 void LastCrashedWindow::saveReport() {
-	QString to = QFileDialog::getSaveFileName(0, qsl("Telegram Crash Report"), QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation) + qsl("/report.telegramcrash"), qsl("Telegram crash report (*.telegramcrash)"));
+	QString to = QFileDialog::getSaveFileName(0, u"Telegram Crash Report"_q, QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation) + u"/report.telegramcrash"_q, u"Telegram crash report (*.telegramcrash)"_q);
 	if (!to.isEmpty()) {
 		QFile file(to);
 		if (file.open(QIODevice::WriteOnly)) {
@@ -450,7 +450,7 @@ QByteArray LastCrashedWindow::getCrashReportRaw() const {
 	auto result = _dumpraw;
 	if (!_reportUsername.isEmpty() && _includeUsername.checkState() != Qt::Checked) {
 		result.replace(
-			(qsl("Username: ") + _reportUsername).toUtf8(),
+			(u"Username: "_q + _reportUsername).toUtf8(),
 			"Username: _not_included_");
 	}
 	return result;
@@ -477,9 +477,9 @@ QString LastCrashedWindow::getReportField(const QLatin1String &name, const QLati
 
 			if (name == qstr("version")) {
 				if (data.endsWith(qstr(" alpha"))) {
-					data = QString::number(-data.replace(QRegularExpression(qsl("[^\\d]")), "").toLongLong());
+					data = QString::number(-data.replace(QRegularExpression(u"[^\\d]"_q), "").toLongLong());
 				} else {
-					data = QString::number(data.replace(QRegularExpression(qsl("[^\\d]")), "").toLongLong());
+					data = QString::number(data.replace(QRegularExpression(u"[^\\d]"_q), "").toLongLong());
 				}
 			}
 
@@ -493,7 +493,7 @@ void LastCrashedWindow::addReportFieldPart(const QLatin1String &name, const QLat
 	QString data = getReportField(name, prefix);
 	if (!data.isEmpty()) {
 		QHttpPart reportPart;
-		reportPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant(qsl("form-data; name=\"%1\"").arg(name)));
+		reportPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant(u"form-data; name=\"%1\""_q.arg(name)));
 		reportPart.setBody(data.toUtf8());
 		multipart->append(reportPart);
 	}
@@ -510,7 +510,7 @@ void LastCrashedWindow::sendReport() {
 	}
 
 	QString apiid = getReportField(qstr("apiid"), qstr("ApiId:")), version = getReportField(qstr("version"), qstr("Version:"));
-	_checkReply = _sendManager.get(QNetworkRequest(qsl("https://tdesktop.com/crash.php?act=query_report&apiid=%1&version=%2&dmp=%3&platform=%4").arg(
+	_checkReply = _sendManager.get(QNetworkRequest(u"https://tdesktop.com/crash.php?act=query_report&apiid=%1&version=%2&dmp=%3&platform=%4"_q.arg(
 		apiid,
 		version,
 		QString::number(minidumpFileName().isEmpty() ? 0 : 1),
@@ -525,7 +525,7 @@ void LastCrashedWindow::sendReport() {
 		&QNetworkReply::finished,
 		[=] { checkingFinished(); });
 
-	_pleaseSendReport.setText(qsl("Sending crash report..."));
+	_pleaseSendReport.setText(u"Sending crash report..."_q);
 	_sendingState = SendingProgress;
 	_reportShown = false;
 	updateControls();
@@ -534,7 +534,7 @@ void LastCrashedWindow::sendReport() {
 QString LastCrashedWindow::minidumpFileName() {
 	QFileInfo dmpFile(_minidumpFull);
 	if (dmpFile.exists() && dmpFile.size() > 0 && dmpFile.size() < 20 * 1024 * 1024 &&
-		QRegularExpression(qsl("^[a-zA-Z0-9\\-]{1,64}\\.dmp$")).match(dmpFile.fileName()).hasMatch()) {
+		QRegularExpression(u"^[a-zA-Z0-9\\-]{1,64}\\.dmp$"_q).match(dmpFile.fileName()).hasMatch()) {
 		return dmpFile.fileName();
 	}
 	return QString();
@@ -550,17 +550,17 @@ void LastCrashedWindow::checkingFinished() {
 	LOG(("Crash report check for sending done, result: %1").arg(QString::fromUtf8(result)));
 
 	if (result == "Old") {
-		_pleaseSendReport.setText(qsl("This report is about some old version of Telegram Desktop."));
+		_pleaseSendReport.setText(u"This report is about some old version of Telegram Desktop."_q);
 		_sendingState = SendingTooOld;
 		updateControls();
 		return;
 	} else if (result == "Unofficial") {
-		_pleaseSendReport.setText(qsl("You use some custom version of Telegram Desktop."));
+		_pleaseSendReport.setText(u"You use some custom version of Telegram Desktop."_q);
 		_sendingState = SendingUnofficial;
 		updateControls();
 		return;
 	} else if (result != "Report") {
-		_pleaseSendReport.setText(qsl("Thank you for your report!"));
+		_pleaseSendReport.setText(u"Thank you for your report!"_q);
 		_sendingState = SendingDone;
 		updateControls();
 
@@ -600,16 +600,16 @@ void LastCrashedWindow::checkingFinished() {
 			if (minidumpZip.error() == ZIP_OK) {
 				QHttpPart dumpPart;
 				dumpPart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("application/octet-stream"));
-				dumpPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant(qsl("form-data; name=\"dump\"; filename=\"%1\"").arg(zipName)));
+				dumpPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant(u"form-data; name=\"dump\"; filename=\"%1\""_q.arg(zipName)));
 				dumpPart.setBody(minidumpZip.result());
 				multipart->append(dumpPart);
 
-				_minidump.setText(qsl("+ %1 (%2 KB)").arg(zipName).arg(minidumpZip.result().size() / 1024));
+				_minidump.setText(u"+ %1 (%2 KB)"_q.arg(zipName).arg(minidumpZip.result().size() / 1024));
 			}
 		}
 	}
 
-	_sendReply = _sendManager.post(QNetworkRequest(qsl("https://tdesktop.com/crash.php?act=report")), multipart);
+	_sendReply = _sendManager.post(QNetworkRequest(u"https://tdesktop.com/crash.php?act=report"_q), multipart);
 	multipart->setParent(_sendReply);
 
 	connect(
@@ -843,7 +843,7 @@ void LastCrashedWindow::updateControls() {
 		h += _networkSettings.height() + padding;
 	}
 
-	QSize s(2 * padding + QFontMetrics(_label.font()).horizontalAdvance(qsl("Last time Telegram Desktop was not closed properly.")) + padding + _networkSettings.width(), h);
+	QSize s(2 * padding + QFontMetrics(_label.font()).horizontalAdvance(u"Last time Telegram Desktop was not closed properly."_q) + padding + _networkSettings.width(), h);
 	if (s == size()) {
 		resizeEvent(0);
 	} else {
@@ -896,7 +896,7 @@ void LastCrashedWindow::setUpdatingState(UpdatingState state, bool force) {
 		_updaterData->state = state;
 		switch (state) {
 		case UpdatingLatest:
-			_updating.setText(qsl("Latest version is installed."));
+			_updating.setText(u"Latest version is installed."_q);
 			if (_sendingState == SendingNoReport) {
 				InvokeQueued(this, [=] { processContinue(); });
 			} else {
@@ -914,10 +914,10 @@ void LastCrashedWindow::setUpdatingState(UpdatingState state, bool force) {
 			}
 		break;
 		case UpdatingCheck:
-			_updating.setText(qsl("Checking for updates..."));
+			_updating.setText(u"Checking for updates..."_q);
 		break;
 		case UpdatingFail:
-			_updating.setText(qsl("Update check failed :("));
+			_updating.setText(u"Update check failed :("_q);
 		break;
 		}
 		updateControls();
@@ -930,7 +930,7 @@ void LastCrashedWindow::setDownloadProgress(qint64 ready, qint64 total) {
 	qint64 readyTenthMb = (ready * 10 / (1024 * 1024)), totalTenthMb = (total * 10 / (1024 * 1024));
 	QString readyStr = QString::number(readyTenthMb / 10) + '.' + QString::number(readyTenthMb % 10);
 	QString totalStr = QString::number(totalTenthMb / 10) + '.' + QString::number(totalTenthMb % 10);
-	QString res = qsl("Downloading update {ready} / {total} MB..").replace(qstr("{ready}"), readyStr).replace(qstr("{total}"), totalStr);
+	QString res = u"Downloading update {ready} / {total} MB.."_q.replace(qstr("{ready}"), readyStr).replace(qstr("{total}"), totalStr);
 	if (_updaterData->newVersionDownload != res) {
 		_updaterData->newVersionDownload = res;
 		_updating.setText(_updaterData->newVersionDownload);
@@ -970,7 +970,7 @@ void LastCrashedWindow::processContinue() {
 void LastCrashedWindow::sendingError(QNetworkReply::NetworkError e) {
 	LOG(("Crash report sending error: %1").arg(e));
 
-	_pleaseSendReport.setText(qsl("Sending crash report failed :("));
+	_pleaseSendReport.setText(u"Sending crash report failed :("_q);
 	_sendingState = SendingFail;
 	if (_checkReply) {
 		_checkReply->deleteLater();
@@ -990,7 +990,7 @@ void LastCrashedWindow::sendingFinished() {
 
 		_sendReply->deleteLater();
 		_sendReply = nullptr;
-		_pleaseSendReport.setText(qsl("Thank you for your report!"));
+		_pleaseSendReport.setText(u"Thank you for your report!"_q);
 		_sendingState = SendingDone;
 		updateControls();
 
@@ -1003,9 +1003,9 @@ void LastCrashedWindow::sendingProgress(qint64 uploaded, qint64 total) {
 	_sendingState = SendingUploading;
 
 	if (total < 0) {
-		_pleaseSendReport.setText(qsl("Sending crash report %1 KB...").arg(uploaded / 1024));
+		_pleaseSendReport.setText(u"Sending crash report %1 KB..."_q.arg(uploaded / 1024));
 	} else {
-		_pleaseSendReport.setText(qsl("Sending crash report %1 / %2 KB...").arg(uploaded / 1024).arg(total / 1024));
+		_pleaseSendReport.setText(u"Sending crash report %1 / %2 KB..."_q.arg(uploaded / 1024).arg(total / 1024));
 	}
 	updateControls();
 }
@@ -1076,7 +1076,7 @@ void LastCrashedWindow::resizeEvent(QResizeEvent *e) {
 }
 
 NetworkSettingsWindow::NetworkSettingsWindow(QWidget *parent, QString host, quint32 port, QString username, QString password)
-: PreLaunchWindow(qsl("HTTP Proxy Settings"))
+: PreLaunchWindow(u"HTTP Proxy Settings"_q)
 , _hostLabel(this)
 , _portLabel(this)
 , _usernameLabel(this)
@@ -1090,14 +1090,14 @@ NetworkSettingsWindow::NetworkSettingsWindow(QWidget *parent, QString host, quin
 , _parent(parent) {
 	setWindowModality(Qt::ApplicationModal);
 
-	_hostLabel.setText(qsl("Hostname"));
+	_hostLabel.setText(u"Hostname"_q);
-	_portLabel.setText(qsl("Port"));
+	_portLabel.setText(u"Port"_q);
-	_usernameLabel.setText(qsl("Username"));
+	_usernameLabel.setText(u"Username"_q);
-	_passwordLabel.setText(qsl("Password"));
+	_passwordLabel.setText(u"Password"_q);
 
-	_save.setText(qsl("SAVE"));
+	_save.setText(u"SAVE"_q);
 	connect(&_save, &QPushButton::clicked, [=] { save(); });
-	_cancel.setText(qsl("CANCEL"));
+	_cancel.setText(u"CANCEL"_q);
 	connect(&_cancel, &QPushButton::clicked, [=] { close(); });
 
 	_hostInput.setText(host);

Telegram/SourceFiles/core/crash_reports.cpp

@@ -300,18 +300,18 @@ bool DumpCallback(const google_breakpad::MinidumpDescriptor &md, void *context,
 QString PlatformString() {
 	if (Platform::IsWindowsStoreBuild()) {
 		return Platform::IsWindows64Bit()
-			? qsl("WinStore64Bit")
+			? u"WinStore64Bit"_q
-			: qsl("WinStore32Bit");
+			: u"WinStore32Bit"_q;
 	} else if (Platform::IsWindows32Bit()) {
-		return qsl("Windows32Bit");
+		return u"Windows32Bit"_q;
 	} else if (Platform::IsWindows64Bit()) {
-		return qsl("Windows64Bit");
+		return u"Windows64Bit"_q;
 	} else if (Platform::IsMacStoreBuild()) {
-		return qsl("MacAppStore");
+		return u"MacAppStore"_q;
 	} else if (Platform::IsMac()) {
-		return qsl("MacOS");
+		return u"MacOS"_q;
 	} else if (Platform::IsLinux()) {
-		return qsl("Linux");
+		return u"Linux"_q;
 	}
 	Unexpected("Platform in CrashReports::PlatformString.");
 }
@@ -320,12 +320,16 @@ void StartCatching(not_null<Core::Launcher*> launcher) {
 #ifndef DESKTOP_APP_DISABLE_CRASH_REPORTS
 	ProcessAnnotations["Binary"] = cExeName().toUtf8().constData();
 	ProcessAnnotations["ApiId"] = QString::number(ApiId).toUtf8().constData();
-	ProcessAnnotations["Version"] = (cAlphaVersion() ? qsl("%1 alpha").arg(cAlphaVersion()) : (AppBetaVersion ? qsl("%1 beta") : qsl("%1")).arg(AppVersion)).toUtf8().constData();
+	ProcessAnnotations["Version"] = (cAlphaVersion()
+		? u"%1 alpha"_q.arg(cAlphaVersion())
+		: (AppBetaVersion
+			? u"%1 beta"_q
+			: u"%1"_q).arg(AppVersion)).toUtf8().constData();
 	ProcessAnnotations["Launched"] = QDateTime::currentDateTime().toString("dd.MM.yyyy hh:mm:ss").toUtf8().constData();
 	ProcessAnnotations["Platform"] = PlatformString().toUtf8().constData();
 	ProcessAnnotations["UserTag"] = QString::number(launcher->installationTag(), 16).toUtf8().constData();
 
-	QString dumpspath = cWorkingDir() + qsl("tdata/dumps");
+	QString dumpspath = cWorkingDir() + u"tdata/dumps"_q;
 	QDir().mkpath(dumpspath);
 
 #ifdef Q_OS_WIN
@@ -356,7 +360,7 @@ void StartCatching(not_null<Core::Launcher*> launcher) {
 	SetSignalHandlers = false;
 #else // MAC_USE_BREAKPAD
 	crashpad::CrashpadClient crashpad_client;
-	std::string handler = (cExeDir() + cExeName() + qsl("/Contents/Helpers/crashpad_handler")).toUtf8().constData();
+	std::string handler = (cExeDir() + cExeName() + u"/Contents/Helpers/crashpad_handler"_q).toUtf8().constData();
 	std::string database = QFile::encodeName(dumpspath).constData();
 	if (crashpad_client.StartHandler(
 			base::FilePath(handler),
@@ -394,7 +398,7 @@ void FinishCatching() {
 
 StartResult Start() {
 #ifndef DESKTOP_APP_DISABLE_CRASH_REPORTS
-	ReportPath = cWorkingDir() + qsl("tdata/working");
+	ReportPath = cWorkingDir() + u"tdata/working"_q;
 
 #ifdef Q_OS_WIN
 	FILE *f = nullptr;

Telegram/SourceFiles/core/file_utilities.cpp

@@ -83,8 +83,8 @@ QString filedialogDefaultName(
 		time_t t = time(NULL);
 		mylocaltime(&tm, &t);
 
-		QChar zero('0');
+		const auto zero = QChar('0');
-		base = prefix + qsl("_%1-%2-%3_%4-%5-%6").arg(tm.tm_year + 1900).arg(tm.tm_mon + 1, 2, 10, zero).arg(tm.tm_mday, 2, 10, zero).arg(tm.tm_hour, 2, 10, zero).arg(tm.tm_min, 2, 10, zero).arg(tm.tm_sec, 2, 10, zero);
+		base = prefix + u"_%1-%2-%3_%4-%5-%6"_q.arg(tm.tm_year + 1900).arg(tm.tm_mon + 1, 2, 10, zero).arg(tm.tm_mday, 2, 10, zero).arg(tm.tm_hour, 2, 10, zero).arg(tm.tm_min, 2, 10, zero).arg(tm.tm_sec, 2, 10, zero);
 	}
 
 	QString name;
@@ -97,7 +97,7 @@ QString filedialogDefaultName(
 			+ base;
 		name = nameBase + extension;
 		for (int i = 0; QFileInfo::exists(name); ++i) {
-			name = nameBase + qsl(" (%1)").arg(i + 2) + extension;
+			name = nameBase + u" (%1)"_q.arg(i + 2) + extension;
 		}
 	}
 	return name;
@@ -118,7 +118,7 @@ QString filedialogNextFilename(
 	const auto nameBase = (dir.endsWith('/') ? dir : (dir + '/')) + prefix;
 	auto result = nameBase + extension;
 	for (int i = 0; result.toLower() != cur.toLower() && QFileInfo::exists(result); ++i) {
-		result = nameBase + qsl(" (%1)").arg(i + 2) + extension;
+		result = nameBase + u" (%1)"_q.arg(i + 2) + extension;
 	}
 	return result;
 }
@@ -336,9 +336,9 @@ void GetFolder(
 
 QString AllFilesFilter() {
 #ifdef Q_OS_WIN
-	return qsl("All files (*.*)");
+	return u"All files (*.*)"_q;
 #else // Q_OS_WIN
-	return qsl("All files (*)");
+	return u"All files (*)"_q;
 #endif // Q_OS_WIN
 }
 

Telegram/SourceFiles/core/launcher.cpp

@@ -61,7 +61,7 @@ FilteredCommandLineArguments::FilteredCommandLineArguments(
 #endif // !Q_OS_WIN
 	}
 #elif defined Q_OS_UNIX
-	if (QFile::exists(cWorkingDir() + qsl("tdata/nowayland"))
+	if (QFile::exists(cWorkingDir() + u"tdata/nowayland"_q)
 		&& qEnvironmentVariableIsEmpty("QT_QPA_PLATFORM")) {
 		LOG(("Wayland: Disable on old installations"));
 		pushArgument("-platform");
@@ -87,7 +87,7 @@ void FilteredCommandLineArguments::pushArgument(const char *text) {
 }
 
 QString DebugModeSettingPath() {
-	return cWorkingDir() + qsl("tdata/withdebug");
+	return cWorkingDir() + u"tdata/withdebug"_q;
 }
 
 void WriteDebugModeSetting() {
@@ -113,7 +113,7 @@ void ComputeDebugMode() {
 }
 
 void ComputeExternalUpdater() {
-	QFile file(qsl("/etc/tdesktop/externalupdater"));
+	QFile file(u"/etc/tdesktop/externalupdater"_q);
 
 	if (file.exists() && file.open(QIODevice::ReadOnly)) {
 		QTextStream fileStream(&file);
@@ -129,13 +129,13 @@ void ComputeExternalUpdater() {
 }
 
 void ComputeFreeType() {
-	if (QFile::exists(cWorkingDir() + qsl("tdata/withfreetype"))) {
+	if (QFile::exists(cWorkingDir() + u"tdata/withfreetype"_q)) {
 		cSetUseFreeType(true);
 	}
 }
 
 QString InstallBetaVersionsSettingPath() {
-	return cWorkingDir() + qsl("tdata/devversion");
+	return cWorkingDir() + u"tdata/devversion"_q;
 }
 
 void WriteInstallBetaVersionsSetting() {
@@ -161,7 +161,7 @@ void ComputeInstallBetaVersions() {
 
 void ComputeInstallationTag() {
 	InstallationTag = 0;
-	auto file = QFile(cWorkingDir() + qsl("tdata/usertag"));
+	auto file = QFile(cWorkingDir() + u"tdata/usertag"_q);
 	if (file.open(QIODevice::ReadOnly)) {
 		const auto result = file.read(
 			reinterpret_cast<char*>(&InstallationTag),
@@ -189,7 +189,7 @@ void ComputeInstallationTag() {
 
 bool MoveLegacyAlphaFolder(const QString &folder, const QString &file) {
 	const auto was = cExeDir() + folder;
-	const auto now = cExeDir() + qsl("TelegramForcePortable");
+	const auto now = cExeDir() + u"TelegramForcePortable"_q;
 	if (QDir(was).exists() && !QDir(now).exists()) {
 		const auto oldFile = was + "/tdata/" + file;
 		const auto newFile = was + "/tdata/alpha";
@@ -210,8 +210,8 @@ bool MoveLegacyAlphaFolder(const QString &folder, const QString &file) {
 }
 
 bool MoveLegacyAlphaFolder() {
-	if (!MoveLegacyAlphaFolder(qsl("TelegramAlpha_data"), qsl("alpha"))
+	if (!MoveLegacyAlphaFolder(u"TelegramAlpha_data"_q, u"alpha"_q)
-		|| !MoveLegacyAlphaFolder(qsl("TelegramBeta_data"), qsl("beta"))) {
+		|| !MoveLegacyAlphaFolder(u"TelegramBeta_data"_q, u"beta"_q)) {
 		return false;
 	}
 	return true;
@@ -222,8 +222,8 @@ bool CheckPortableVersionFolder() {
 		return false;
 	}
 
-	const auto portable = cExeDir() + qsl("TelegramForcePortable");
+	const auto portable = cExeDir() + u"TelegramForcePortable"_q;
-	QFile key(portable + qsl("/tdata/alpha"));
+	QFile key(portable + u"/tdata/alpha"_q);
 	if (cAlphaVersion()) {
 		Assert(*AlphaPrivateKey != 0);
 
@@ -293,7 +293,7 @@ void Launcher::init() {
 	prepareSettings();
 	initQtMessageLogging();
 
-	QApplication::setApplicationName(qsl("TelegramDesktop"));
+	QApplication::setApplicationName(u"TelegramDesktop"_q);
 	QApplication::setAttribute(Qt::AA_DisableHighDpiScaling, true);
 	QApplication::setHighDpiScaleFactorRoundingPolicy(
 		Qt::HighDpiScaleFactorRoundingPolicy::Floor);
@@ -326,7 +326,7 @@ int Launcher::exec() {
 
 	if (Logs::DebugEnabled()) {
 		const auto openalLogPath = QDir::toNativeSeparators(
-			cWorkingDir() + qsl("DebugLogs/last_openal_log.txt"));
+			cWorkingDir() + u"DebugLogs/last_openal_log.txt"_q);
 
 		qputenv("ALSOFT_LOGLEVEL", "3");
 
@@ -350,7 +350,7 @@ int Launcher::exec() {
 	if (!UpdaterDisabled() && cRestartingUpdate()) {
 		DEBUG_LOG(("Sandbox Info: executing updater to install update."));
 		if (!launchUpdater(UpdaterLaunch::PerformUpdate)) {
-			base::Platform::DeleteDirectory(cWorkingDir() + qsl("tupdates/temp"));
+			base::Platform::DeleteDirectory(cWorkingDir() + u"tupdates/temp"_q);
 		}
 	} else if (cRestarting()) {
 		DEBUG_LOG(("Sandbox Info: executing Telegram because of restart."));

Telegram/SourceFiles/core/sandbox.cpp

@@ -264,17 +264,17 @@ void Sandbox::socketConnected() {
 	QString commands;
 	const QStringList &lst(cSendPaths());
 	for (QStringList::const_iterator i = lst.cbegin(), e = lst.cend(); i != e; ++i) {
-		commands += qsl("SEND:") + _escapeTo7bit(*i) + ';';
+		commands += u"SEND:"_q + _escapeTo7bit(*i) + ';';
 	}
 	if (qEnvironmentVariableIsSet("XDG_ACTIVATION_TOKEN")) {
-		commands += qsl("XDG_ACTIVATION_TOKEN:") + _escapeTo7bit(qEnvironmentVariable("XDG_ACTIVATION_TOKEN")) + ';';
+		commands += u"XDG_ACTIVATION_TOKEN:"_q + _escapeTo7bit(qEnvironmentVariable("XDG_ACTIVATION_TOKEN")) + ';';
 	}
 	if (!cStartUrl().isEmpty()) {
-		commands += qsl("OPEN:") + _escapeTo7bit(cStartUrl()) + ';';
+		commands += u"OPEN:"_q + _escapeTo7bit(cStartUrl()) + ';';
 	} else if (cQuit()) {
-		commands += qsl("CMD:quit;");
+		commands += u"CMD:quit;"_q;
 	} else {
-		commands += qsl("CMD:show;");
+		commands += u"CMD:show;"_q;
 	}
 
 	DEBUG_LOG(("Sandbox Info: writing commands %1").arg(commands));
@@ -425,17 +425,17 @@ void Sandbox::readClients() {
 			int32 from = 0, l = cmds.length();
 			for (int32 to = cmds.indexOf(QChar(';'), from); to >= from; to = (from < l) ? cmds.indexOf(QChar(';'), from) : -1) {
 				auto cmd = base::StringViewMid(cmds, from, to - from);
-				if (cmd.startsWith(qsl("CMD:"))) {
+				if (cmd.startsWith(u"CMD:"_q)) {
 					execExternal(cmds.mid(from + 4, to - from - 4));
-					const auto response = qsl("RES:%1;").arg(QApplication::applicationPid()).toLatin1();
+					const auto response = u"RES:%1;"_q.arg(QApplication::applicationPid()).toLatin1();
 					i->first->write(response.data(), response.size());
-				} else if (cmd.startsWith(qsl("SEND:"))) {
+				} else if (cmd.startsWith(u"SEND:"_q)) {
 					if (cSendPaths().isEmpty()) {
 						toSend.append(_escapeFrom7bit(cmds.mid(from + 5, to - from - 5)));
 					}
-				} else if (cmd.startsWith(qsl("XDG_ACTIVATION_TOKEN:"))) {
+				} else if (cmd.startsWith(u"XDG_ACTIVATION_TOKEN:"_q)) {
 					qputenv("XDG_ACTIVATION_TOKEN", _escapeFrom7bit(cmds.mid(from + 21, to - from - 21)).toUtf8());
-				} else if (cmd.startsWith(qsl("OPEN:"))) {
+				} else if (cmd.startsWith(u"OPEN:"_q)) {
 					startUrl = _escapeFrom7bit(cmds.mid(from + 5, to - from - 5)).mid(0, 8192);
 					auto activateRequired = StartUrlRequiresActivate(startUrl);
 					if (activateRequired) {
@@ -444,7 +444,7 @@ void Sandbox::readClients() {
 					const auto responsePid = activateRequired
 						? QApplication::applicationPid()
 						: kEmptyPidForCommandResponse;
-					const auto response = qsl("RES:%1;").arg(responsePid).toLatin1();
+					const auto response = u"RES:%1;"_q.arg(responsePid).toLatin1();
 					i->first->write(response.data(), response.size());
 				} else {
 					LOG(("Sandbox Error: unknown command %1 passed in local socket").arg(cmd.toString()));

Telegram/SourceFiles/core/shortcuts.cpp

@@ -55,87 +55,87 @@ const auto SupportCommands = base::flat_set<Command>{
 };
 
 const auto CommandByName = base::flat_map<QString, Command>{
-	{ qsl("close_telegram")    , Command::Close },
+	{ u"close_telegram"_q    , Command::Close },
-	{ qsl("lock_telegram")     , Command::Lock },
+	{ u"lock_telegram"_q     , Command::Lock },
-	{ qsl("minimize_telegram") , Command::Minimize },
+	{ u"minimize_telegram"_q , Command::Minimize },
-	{ qsl("quit_telegram")     , Command::Quit },
+	{ u"quit_telegram"_q     , Command::Quit },
 
-	{ qsl("media_play")        , Command::MediaPlay },
+	{ u"media_play"_q        , Command::MediaPlay },
-	{ qsl("media_pause")       , Command::MediaPause },
+	{ u"media_pause"_q       , Command::MediaPause },
-	{ qsl("media_playpause")   , Command::MediaPlayPause },
+	{ u"media_playpause"_q   , Command::MediaPlayPause },
-	{ qsl("media_stop")        , Command::MediaStop },
+	{ u"media_stop"_q        , Command::MediaStop },
-	{ qsl("media_previous")    , Command::MediaPrevious },
+	{ u"media_previous"_q    , Command::MediaPrevious },
-	{ qsl("media_next")        , Command::MediaNext },
+	{ u"media_next"_q        , Command::MediaNext },
 
-	{ qsl("search")            , Command::Search },
+	{ u"search"_q            , Command::Search },
 
-	{ qsl("previous_chat")     , Command::ChatPrevious },
+	{ u"previous_chat"_q     , Command::ChatPrevious },
-	{ qsl("next_chat")         , Command::ChatNext },
+	{ u"next_chat"_q         , Command::ChatNext },
-	{ qsl("first_chat")        , Command::ChatFirst },
+	{ u"first_chat"_q        , Command::ChatFirst },
-	{ qsl("last_chat")         , Command::ChatLast },
+	{ u"last_chat"_q         , Command::ChatLast },
-	{ qsl("self_chat")         , Command::ChatSelf },
+	{ u"self_chat"_q         , Command::ChatSelf },
 
-	{ qsl("previous_folder")   , Command::FolderPrevious },
+	{ u"previous_folder"_q   , Command::FolderPrevious },
-	{ qsl("next_folder")       , Command::FolderNext },
+	{ u"next_folder"_q       , Command::FolderNext },
-	{ qsl("all_chats")         , Command::ShowAllChats },
+	{ u"all_chats"_q         , Command::ShowAllChats },
 
-	{ qsl("folder1")           , Command::ShowFolder1 },
+	{ u"folder1"_q           , Command::ShowFolder1 },
-	{ qsl("folder2")           , Command::ShowFolder2 },
+	{ u"folder2"_q           , Command::ShowFolder2 },
-	{ qsl("folder3")           , Command::ShowFolder3 },
+	{ u"folder3"_q           , Command::ShowFolder3 },
-	{ qsl("folder4")           , Command::ShowFolder4 },
+	{ u"folder4"_q           , Command::ShowFolder4 },
-	{ qsl("folder5")           , Command::ShowFolder5 },
+	{ u"folder5"_q           , Command::ShowFolder5 },
-	{ qsl("folder6")           , Command::ShowFolder6 },
+	{ u"folder6"_q           , Command::ShowFolder6 },
-	{ qsl("last_folder")       , Command::ShowFolderLast },
+	{ u"last_folder"_q       , Command::ShowFolderLast },
 
-	{ qsl("show_archive")      , Command::ShowArchive },
+	{ u"show_archive"_q      , Command::ShowArchive },
-	{ qsl("show_contacts")     , Command::ShowContacts },
+	{ u"show_contacts"_q     , Command::ShowContacts },
 
-	{ qsl("read_chat")         , Command::ReadChat },
+	{ u"read_chat"_q         , Command::ReadChat },
 
 	// Shortcuts that have no default values.
-	{ qsl("message")           , Command::JustSendMessage },
+	{ u"message"_q           , Command::JustSendMessage },
-	{ qsl("message_silently")  , Command::SendSilentMessage },
+	{ u"message_silently"_q  , Command::SendSilentMessage },
-	{ qsl("message_scheduled") , Command::ScheduleMessage },
+	{ u"message_scheduled"_q , Command::ScheduleMessage },
 	//
 };
 
 const auto CommandNames = base::flat_map<Command, QString>{
-	{ Command::Close          , qsl("close_telegram") },
+	{ Command::Close          , u"close_telegram"_q },
-	{ Command::Lock           , qsl("lock_telegram") },
+	{ Command::Lock           , u"lock_telegram"_q },
-	{ Command::Minimize       , qsl("minimize_telegram") },
+	{ Command::Minimize       , u"minimize_telegram"_q },
-	{ Command::Quit           , qsl("quit_telegram") },
+	{ Command::Quit           , u"quit_telegram"_q },
 
-	{ Command::MediaPlay      , qsl("media_play") },
+	{ Command::MediaPlay      , u"media_play"_q },
-	{ Command::MediaPause     , qsl("media_pause") },
+	{ Command::MediaPause     , u"media_pause"_q },
-	{ Command::MediaPlayPause , qsl("media_playpause") },
+	{ Command::MediaPlayPause , u"media_playpause"_q },
-	{ Command::MediaStop      , qsl("media_stop") },
+	{ Command::MediaStop      , u"media_stop"_q },
-	{ Command::MediaPrevious  , qsl("media_previous") },
+	{ Command::MediaPrevious  , u"media_previous"_q },
-	{ Command::MediaNext      , qsl("media_next") },
+	{ Command::MediaNext      , u"media_next"_q },
 
-	{ Command::Search         , qsl("search") },
+	{ Command::Search         , u"search"_q },
 
-	{ Command::ChatPrevious   , qsl("previous_chat") },
+	{ Command::ChatPrevious   , u"previous_chat"_q },
-	{ Command::ChatNext       , qsl("next_chat") },
+	{ Command::ChatNext       , u"next_chat"_q },
-	{ Command::ChatFirst      , qsl("first_chat") },
+	{ Command::ChatFirst      , u"first_chat"_q },
-	{ Command::ChatLast       , qsl("last_chat") },
+	{ Command::ChatLast       , u"last_chat"_q },
-	{ Command::ChatSelf       , qsl("self_chat") },
+	{ Command::ChatSelf       , u"self_chat"_q },
 
-	{ Command::FolderPrevious , qsl("previous_folder") },
+	{ Command::FolderPrevious , u"previous_folder"_q },
-	{ Command::FolderNext     , qsl("next_folder") },
+	{ Command::FolderNext     , u"next_folder"_q },
-	{ Command::ShowAllChats   , qsl("all_chats") },
+	{ Command::ShowAllChats   , u"all_chats"_q },
 
-	{ Command::ShowFolder1    , qsl("folder1") },
+	{ Command::ShowFolder1    , u"folder1"_q },
-	{ Command::ShowFolder2    , qsl("folder2") },
+	{ Command::ShowFolder2    , u"folder2"_q },
-	{ Command::ShowFolder3    , qsl("folder3") },
+	{ Command::ShowFolder3    , u"folder3"_q },
-	{ Command::ShowFolder4    , qsl("folder4") },
+	{ Command::ShowFolder4    , u"folder4"_q },
-	{ Command::ShowFolder5    , qsl("folder5") },
+	{ Command::ShowFolder5    , u"folder5"_q },
-	{ Command::ShowFolder6    , qsl("folder6") },
+	{ Command::ShowFolder6    , u"folder6"_q },
-	{ Command::ShowFolderLast , qsl("last_folder") },
+	{ Command::ShowFolderLast , u"last_folder"_q },
 
-	{ Command::ShowArchive    , qsl("show_archive") },
+	{ Command::ShowArchive    , u"show_archive"_q },
-	{ Command::ShowContacts   , qsl("show_contacts") },
+	{ Command::ShowContacts   , u"show_contacts"_q },
 
-	{ Command::ReadChat       , qsl("read_chat") },
+	{ Command::ReadChat       , u"read_chat"_q },
 };
 
 class Manager {
@@ -169,11 +169,11 @@ private:
 };
 
 QString DefaultFilePath() {
-	return cWorkingDir() + qsl("tdata/shortcuts-default.json");
+	return cWorkingDir() + u"tdata/shortcuts-default.json"_q;
 }
 
 QString CustomFilePath() {
-	return cWorkingDir() + qsl("tdata/shortcuts-custom.json");
+	return cWorkingDir() + u"tdata/shortcuts-custom.json"_q;
 }
 
 bool DefaultFileIsValid() {
@@ -195,7 +195,7 @@ bool DefaultFileIsValid() {
 		return false;
 	}
 	const auto versionObject = (*shortcuts.constBegin()).toObject();
-	const auto version = versionObject.constFind(qsl("version"));
+	const auto version = versionObject.constFind(u"version"_q);
 	if (version == versionObject.constEnd()
 		|| !(*version).isString()
 		|| (*version).toString() != QString::number(AppVersion)) {
@@ -266,12 +266,12 @@ bool Manager::readCustomFile() {
 	}
 	const auto guard = gsl::finally([&] {
 		if (!_errors.isEmpty()) {
-			_errors.push_front(qsl("While reading file '%1'..."
+			_errors.push_front((u"While reading file '%1'..."_q
 			).arg(file.fileName()));
 		}
 	});
 	if (!file.open(QIODevice::ReadOnly)) {
-		_errors.push_back(qsl("Could not read the file!"));
+		_errors.push_back(u"Could not read the file!"_q);
 		return true;
 	}
 	auto error = QJsonParseError{ 0, QJsonParseError::NoError };
@@ -281,23 +281,23 @@ bool Manager::readCustomFile() {
 	file.close();
 
 	if (error.error != QJsonParseError::NoError) {
-		_errors.push_back(qsl("Failed to parse! Error: %2"
+		_errors.push_back((u"Failed to parse! Error: %2"_q
 		).arg(error.errorString()));
 		return true;
 	} else if (!document.isArray()) {
-		_errors.push_back(qsl("Failed to parse! Error: array expected"));
+		_errors.push_back(u"Failed to parse! Error: array expected"_q);
 		return true;
 	}
 	const auto shortcuts = document.array();
 	auto limit = kCountLimit;
 	for (auto i = shortcuts.constBegin(), e = shortcuts.constEnd(); i != e; ++i) {
 		if (!(*i).isObject()) {
-			_errors.push_back(qsl("Bad entry! Error: object expected"));
+			_errors.push_back(u"Bad entry! Error: object expected"_q);
 			continue;
 		}
 		const auto entry = (*i).toObject();
-		const auto keys = entry.constFind(qsl("keys"));
+		const auto keys = entry.constFind(u"keys"_q);
-		const auto command = entry.constFind(qsl("command"));
+		const auto command = entry.constFind(u"command"_q);
 		if (keys == entry.constEnd()
 			|| command == entry.constEnd()
 			|| !(*keys).isString()
@@ -319,8 +319,8 @@ bool Manager::readCustomFile() {
 			}
 		}
 		if (!--limit) {
-			_errors.push_back(qsl("Too many entries! Limit is %1"
+			_errors.push_back(u"Too many entries! Limit is %1"_q.arg(
-			).arg(kCountLimit));
+				kCountLimit));
 			break;
 		}
 	}
@@ -328,66 +328,66 @@ bool Manager::readCustomFile() {
 }
 
 void Manager::fillDefaults() {
-	const auto ctrl = Platform::IsMac() ? qsl("meta") : qsl("ctrl");
+	const auto ctrl = Platform::IsMac() ? u"meta"_q : u"ctrl"_q;
 
-	set(qsl("ctrl+w"), Command::Close);
+	set(u"ctrl+w"_q, Command::Close);
-	set(qsl("ctrl+f4"), Command::Close);
+	set(u"ctrl+f4"_q, Command::Close);
-	set(qsl("ctrl+l"), Command::Lock);
+	set(u"ctrl+l"_q, Command::Lock);
-	set(qsl("ctrl+m"), Command::Minimize);
+	set(u"ctrl+m"_q, Command::Minimize);
-	set(qsl("ctrl+q"), Command::Quit);
+	set(u"ctrl+q"_q, Command::Quit);
 
-	set(qsl("media play"), Command::MediaPlay);
+	set(u"media play"_q, Command::MediaPlay);
-	set(qsl("media pause"), Command::MediaPause);
+	set(u"media pause"_q, Command::MediaPause);
-	set(qsl("toggle media play/pause"), Command::MediaPlayPause);
+	set(u"toggle media play/pause"_q, Command::MediaPlayPause);
-	set(qsl("media stop"), Command::MediaStop);
+	set(u"media stop"_q, Command::MediaStop);
-	set(qsl("media previous"), Command::MediaPrevious);
+	set(u"media previous"_q, Command::MediaPrevious);
-	set(qsl("media next"), Command::MediaNext);
+	set(u"media next"_q, Command::MediaNext);
 
-	set(qsl("ctrl+f"), Command::Search);
+	set(u"ctrl+f"_q, Command::Search);
-	set(qsl("search"), Command::Search);
+	set(u"search"_q, Command::Search);
-	set(qsl("find"), Command::Search);
+	set(u"find"_q, Command::Search);
 
-	set(qsl("ctrl+pgdown"), Command::ChatNext);
+	set(u"ctrl+pgdown"_q, Command::ChatNext);
-	set(qsl("alt+down"), Command::ChatNext);
+	set(u"alt+down"_q, Command::ChatNext);
-	set(qsl("ctrl+pgup"), Command::ChatPrevious);
+	set(u"ctrl+pgup"_q, Command::ChatPrevious);
-	set(qsl("alt+up"), Command::ChatPrevious);
+	set(u"alt+up"_q, Command::ChatPrevious);
 
-	set(qsl("%1+tab").arg(ctrl), Command::ChatNext);
+	set(u"%1+tab"_q.arg(ctrl), Command::ChatNext);
-	set(qsl("%1+shift+tab").arg(ctrl), Command::ChatPrevious);
+	set(u"%1+shift+tab"_q.arg(ctrl), Command::ChatPrevious);
-	set(qsl("%1+backtab").arg(ctrl), Command::ChatPrevious);
+	set(u"%1+backtab"_q.arg(ctrl), Command::ChatPrevious);
 
-	set(qsl("ctrl+alt+home"), Command::ChatFirst);
+	set(u"ctrl+alt+home"_q, Command::ChatFirst);
-	set(qsl("ctrl+alt+end"), Command::ChatLast);
+	set(u"ctrl+alt+end"_q, Command::ChatLast);
 
-	set(qsl("f5"), Command::SupportReloadTemplates);
+	set(u"f5"_q, Command::SupportReloadTemplates);
-	set(qsl("ctrl+delete"), Command::SupportToggleMuted);
+	set(u"ctrl+delete"_q, Command::SupportToggleMuted);
-	set(qsl("ctrl+insert"), Command::SupportScrollToCurrent);
+	set(u"ctrl+insert"_q, Command::SupportScrollToCurrent);
-	set(qsl("ctrl+shift+x"), Command::SupportHistoryBack);
+	set(u"ctrl+shift+x"_q, Command::SupportHistoryBack);
-	set(qsl("ctrl+shift+c"), Command::SupportHistoryForward);
+	set(u"ctrl+shift+c"_q, Command::SupportHistoryForward);
 
-	set(qsl("ctrl+1"), Command::ChatPinned1);
+	set(u"ctrl+1"_q, Command::ChatPinned1);
-	set(qsl("ctrl+2"), Command::ChatPinned2);
+	set(u"ctrl+2"_q, Command::ChatPinned2);
-	set(qsl("ctrl+3"), Command::ChatPinned3);
+	set(u"ctrl+3"_q, Command::ChatPinned3);
-	set(qsl("ctrl+4"), Command::ChatPinned4);
+	set(u"ctrl+4"_q, Command::ChatPinned4);
-	set(qsl("ctrl+5"), Command::ChatPinned5);
+	set(u"ctrl+5"_q, Command::ChatPinned5);
 
 	auto &&folders = ranges::views::zip(
 		kShowFolder,
 		ranges::views::ints(1, ranges::unreachable));
 
 	for (const auto [command, index] : folders) {
-		set(qsl("%1+%2").arg(ctrl).arg(index), command);
+		set(u"%1+%2"_q.arg(ctrl).arg(index), command);
 	}
 
-	set(qsl("%1+shift+down").arg(ctrl), Command::FolderNext);
+	set(u"%1+shift+down"_q.arg(ctrl), Command::FolderNext);
-	set(qsl("%1+shift+up").arg(ctrl), Command::FolderPrevious);
+	set(u"%1+shift+up"_q.arg(ctrl), Command::FolderPrevious);
 
-	set(qsl("ctrl+0"), Command::ChatSelf);
+	set(u"ctrl+0"_q, Command::ChatSelf);
 
-	set(qsl("ctrl+9"), Command::ShowArchive);
+	set(u"ctrl+9"_q, Command::ShowArchive);
-	set(qsl("ctrl+j"), Command::ShowContacts);
+	set(u"ctrl+j"_q, Command::ShowContacts);
 
-	set(qsl("ctrl+r"), Command::ReadChat);
+	set(u"ctrl+r"_q, Command::ReadChat);
 }
 
 void Manager::writeDefaultFile() {
@@ -405,7 +405,7 @@ void Manager::writeDefaultFile() {
 
 	auto shortcuts = QJsonArray();
 	auto version = QJsonObject();
-	version.insert(qsl("version"), QString::number(AppVersion));
+	version.insert(u"version"_q, QString::number(AppVersion));
 	shortcuts.push_back(version);
 
 	for (const auto &[sequence, shortcut] : _shortcuts) {
@@ -416,8 +416,8 @@ void Manager::writeDefaultFile() {
 			const auto j = CommandNames.find(i->second);
 			if (j != CommandNames.end()) {
 				QJsonObject entry;
-				entry.insert(qsl("keys"), sequence.toString().toLower());
+				entry.insert(u"keys"_q, sequence.toString().toLower());
-				entry.insert(qsl("command"), j->second);
+				entry.insert(u"command"_q, j->second);
 				shortcuts.append(entry);
 			}
 		}
@@ -435,8 +435,7 @@ void Manager::set(const QString &keys, Command command, bool replace) {
 
 	const auto result = QKeySequence(keys, QKeySequence::PortableText);
 	if (result.isEmpty()) {
-		_errors.push_back(qsl("Could not derive key sequence '%1'!"
+		_errors.push_back(u"Could not derive key sequence '%1'!"_q.arg(keys));
-		).arg(keys));
 		return;
 	}
 	auto shortcut = base::make_unique_q<QShortcut>(
@@ -463,7 +462,7 @@ void Manager::set(const QString &keys, Command command, bool replace) {
 		id = i->second->id();
 	}
 	if (!id) {
-		_errors.push_back(qsl("Could not create shortcut '%1'!").arg(keys));
+		_errors.push_back(u"Could not create shortcut '%1'!"_q.arg(keys));
 		return;
 	}
 	_commandByShortcutId.emplace(id, command);
@@ -482,8 +481,7 @@ void Manager::remove(const QString &keys) {
 
 	const auto result = QKeySequence(keys, QKeySequence::PortableText);
 	if (result.isEmpty()) {
-		_errors.push_back(qsl("Could not derive key sequence '%1'!"
+		_errors.push_back(u"Could not derive key sequence '%1'!"_q.arg(keys));
-		).arg(keys));
 		return;
 	}
 	const auto i = _shortcuts.find(result);

Telegram/SourceFiles/core/ui_integration.cpp

@@ -164,13 +164,13 @@ std::shared_ptr<ClickHandler> UiIntegration::createLinkHandler(
 		using HashtagMentionType = MarkedTextContext::HashtagMentionType;
 		if (my && my->type == HashtagMentionType::Twitter) {
 			return std::make_shared<UrlClickHandler>(
-				(qsl("https://twitter.com/hashtag/")
+				(u"https://twitter.com/hashtag/"_q
 					+ data.data.mid(1)
-					+ qsl("?src=hash")),
+					+ u"?src=hash"_q),
 				true);
 		} else if (my && my->type == HashtagMentionType::Instagram) {
 			return std::make_shared<UrlClickHandler>(
-				(qsl("https://instagram.com/explore/tags/")
+				(u"https://instagram.com/explore/tags/"_q
 					+ data.data.mid(1)
 					+ '/'),
 				true);
@@ -184,11 +184,11 @@ std::shared_ptr<ClickHandler> UiIntegration::createLinkHandler(
 		using HashtagMentionType = MarkedTextContext::HashtagMentionType;
 		if (my && my->type == HashtagMentionType::Twitter) {
 			return std::make_shared<UrlClickHandler>(
-				qsl("https://twitter.com/") + data.data.mid(1),
+				u"https://twitter.com/"_q + data.data.mid(1),
 				true);
 		} else if (my && my->type == HashtagMentionType::Instagram) {
 			return std::make_shared<UrlClickHandler>(
-				qsl("https://instagram.com/") + data.data.mid(1) + '/',
+				u"https://instagram.com/"_q + data.data.mid(1) + '/',
 				true);
 		}
 		return std::make_shared<MentionClickHandler>(data.data);

Telegram/SourceFiles/core/update_checker.cpp

@@ -228,7 +228,7 @@ std::shared_ptr<Updater> GetUpdaterInstance() {
 }
 
 QString UpdatesFolder() {
-	return cWorkingDir() + qsl("tupdates");
+	return cWorkingDir() + u"tupdates"_q;
 }
 
 void ClearAll() {
@@ -259,10 +259,10 @@ QString FindUpdateFile() {
 }
 
 QString ExtractFilename(const QString &url) {
-	const auto expression = QRegularExpression(qsl("/([^/\\?]+)(\\?|$)"));
+	const auto expression = QRegularExpression(u"/([^/\\?]+)(\\?|$)"_q);
 	if (const auto match = expression.match(url); match.hasMatch()) {
 		return match.captured(1).replace(
-			QRegularExpression(qsl("[^a-zA-Z0-9_\\-]")),
+			QRegularExpression(u"[^a-zA-Z0-9_\\-]"_q),
 			QString());
 	}
 	return QString();
@@ -290,7 +290,7 @@ bool UnpackUpdate(const QString &filepath) {
 	}
 	input.close();
 
-	QString tempDirPath = cWorkingDir() + qsl("tupdates/temp"), readyFilePath = cWorkingDir() + qsl("tupdates/temp/ready");
+	QString tempDirPath = cWorkingDir() + u"tupdates/temp"_q, readyFilePath = cWorkingDir() + u"tupdates/temp/ready"_q;
 	base::Platform::DeleteDirectory(tempDirPath);
 
 	QDir tempDir(tempDirPath);
@@ -485,7 +485,7 @@ bool UnpackUpdate(const QString &filepath) {
 		}
 
 		// create tdata/version file
-		tempDir.mkdir(QDir(tempDirPath + qsl("/tdata")).absolutePath());
+		tempDir.mkdir(QDir(tempDirPath + u"/tdata"_q).absolutePath());
 		std::wstring versionString = FormatVersionDisplay(version).toStdWString();
 
 		const auto versionNum = VersionInt(version);
@@ -493,9 +493,9 @@ bool UnpackUpdate(const QString &filepath) {
 		VersionChar versionStr[32];
 		memcpy(versionStr, versionString.c_str(), versionLen);
 
-		QFile fVersion(tempDirPath + qsl("/tdata/version"));
+		QFile fVersion(tempDirPath + u"/tdata/version"_q);
 		if (!fVersion.open(QIODevice::WriteOnly)) {
-			LOG(("Update Error: cant write version file '%1'").arg(tempDirPath + qsl("/version")));
+			LOG(("Update Error: cant write version file '%1'").arg(tempDirPath + u"/version"_q));
 			return false;
 		}
 		fVersion.write((const char*)&versionNum, sizeof(VersionInt));
@@ -723,7 +723,7 @@ std::optional<QString> HttpChecker::parseOldResponse(
 		const QByteArray &response) const {
 	const auto string = QString::fromLatin1(response);
 	const auto old = QRegularExpression(
-		qsl("^\\s*(\\d+)\\s*:\\s*([\\x21-\\x7f]+)\\s*$")
+		u"^\\s*(\\d+)\\s*:\\s*([\\x21-\\x7f]+)\\s*$"_q
 	).match(string);
 	if (!old.hasMatch()) {
 		return std::nullopt;
@@ -871,7 +871,7 @@ void HttpLoaderActor::gotMetaData() {
 	const auto pairs = _reply->rawHeaderPairs();
 	for (const auto &pair : pairs) {
 		if (QString::fromUtf8(pair.first).toLower() == "content-range") {
-			const auto m = QRegularExpression(qsl("/(\\d+)([^\\d]|$)")).match(QString::fromUtf8(pair.second));
+			const auto m = QRegularExpression(u"/(\\d+)([^\\d]|$)"_q).match(QString::fromUtf8(pair.second));
 			if (m.hasMatch()) {
 				_parent->writeChunk({}, m.captured(1).toInt());
 			}
@@ -1506,16 +1506,16 @@ int UpdateChecker::size() const {
 //}
 
 bool checkReadyUpdate() {
-	QString readyFilePath = cWorkingDir() + qsl("tupdates/temp/ready"), readyPath = cWorkingDir() + qsl("tupdates/temp");
+	QString readyFilePath = cWorkingDir() + u"tupdates/temp/ready"_q, readyPath = cWorkingDir() + u"tupdates/temp"_q;
 	if (!QFile(readyFilePath).exists() || cExeName().isEmpty()) {
-		if (QDir(cWorkingDir() + qsl("tupdates/ready")).exists() || QDir(cWorkingDir() + qsl("tupdates/temp")).exists()) {
+		if (QDir(cWorkingDir() + u"tupdates/ready"_q).exists() || QDir(cWorkingDir() + u"tupdates/temp"_q).exists()) {
 			ClearAll();
 		}
 		return false;
 	}
 
 	// check ready version
-	QString versionPath = readyPath + qsl("/tdata/version");
+	QString versionPath = readyPath + u"/tdata/version"_q;
 	{
 		QFile fVersion(versionPath);
 		if (!fVersion.open(QIODevice::ReadOnly)) {
@@ -1550,14 +1550,14 @@ bool checkReadyUpdate() {
 	}
 
 #ifdef Q_OS_WIN
-	QString curUpdater = (cExeDir() + qsl("Updater.exe"));
+	QString curUpdater = (cExeDir() + u"Updater.exe"_q);
-	QFileInfo updater(cWorkingDir() + qsl("tupdates/temp/Updater.exe"));
+	QFileInfo updater(cWorkingDir() + u"tupdates/temp/Updater.exe"_q);
 #elif defined Q_OS_MAC // Q_OS_WIN
-	QString curUpdater = (cExeDir() + cExeName() + qsl("/Contents/Frameworks/Updater"));
+	QString curUpdater = (cExeDir() + cExeName() + u"/Contents/Frameworks/Updater"_q);
-	QFileInfo updater(cWorkingDir() + qsl("tupdates/temp/Telegram.app/Contents/Frameworks/Updater"));
+	QFileInfo updater(cWorkingDir() + u"tupdates/temp/Telegram.app/Contents/Frameworks/Updater"_q);
 #elif defined Q_OS_UNIX // Q_OS_MAC
-	QString curUpdater = (cExeDir() + qsl("Updater"));
+	QString curUpdater = (cExeDir() + u"Updater"_q);
-	QFileInfo updater(cWorkingDir() + qsl("tupdates/temp/Updater"));
+	QFileInfo updater(cWorkingDir() + u"tupdates/temp/Updater"_q);
 #endif // Q_OS_UNIX
 	if (!updater.exists()) {
 		QFileInfo current(curUpdater);

Telegram/SourceFiles/core/utils.cpp

@@ -339,12 +339,12 @@ namespace {
 
 QString translitLetterRusEng(QChar letter, QChar next, int32 &toSkip) {
 	if (fastDoubleLetterRusEng.isEmpty()) {
-		fastDoubleLetterRusEng.insert((QString::fromUtf8("Ы").at(0).unicode() << 16) | QString::fromUtf8("й").at(0).unicode(), qsl("Y"));
+		fastDoubleLetterRusEng.insert((QString::fromUtf8("Ы").at(0).unicode() << 16) | QString::fromUtf8("й").at(0).unicode(), u"Y"_q);
-		fastDoubleLetterRusEng.insert((QString::fromUtf8("и").at(0).unicode() << 16) | QString::fromUtf8("я").at(0).unicode(), qsl("ia"));
+		fastDoubleLetterRusEng.insert((QString::fromUtf8("и").at(0).unicode() << 16) | QString::fromUtf8("я").at(0).unicode(), u"ia"_q);
-		fastDoubleLetterRusEng.insert((QString::fromUtf8("и").at(0).unicode() << 16) | QString::fromUtf8("й").at(0).unicode(), qsl("y"));
+		fastDoubleLetterRusEng.insert((QString::fromUtf8("и").at(0).unicode() << 16) | QString::fromUtf8("й").at(0).unicode(), u"y"_q);
-		fastDoubleLetterRusEng.insert((QString::fromUtf8("к").at(0).unicode() << 16) | QString::fromUtf8("с").at(0).unicode(), qsl("x"));
+		fastDoubleLetterRusEng.insert((QString::fromUtf8("к").at(0).unicode() << 16) | QString::fromUtf8("с").at(0).unicode(), u"x"_q);
-		fastDoubleLetterRusEng.insert((QString::fromUtf8("ы").at(0).unicode() << 16) | QString::fromUtf8("й").at(0).unicode(), qsl("y"));
+		fastDoubleLetterRusEng.insert((QString::fromUtf8("ы").at(0).unicode() << 16) | QString::fromUtf8("й").at(0).unicode(), u"y"_q);
-		fastDoubleLetterRusEng.insert((QString::fromUtf8("ь").at(0).unicode() << 16) | QString::fromUtf8("е").at(0).unicode(), qsl("ye"));
+		fastDoubleLetterRusEng.insert((QString::fromUtf8("ь").at(0).unicode() << 16) | QString::fromUtf8("е").at(0).unicode(), u"ye"_q);
 	}
 	QMap<uint32, QString>::const_iterator i = fastDoubleLetterRusEng.constFind((letter.unicode() << 16) | next.unicode());
 	if (i != fastDoubleLetterRusEng.cend()) {
@@ -354,81 +354,81 @@ QString translitLetterRusEng(QChar letter, QChar next, int32 &toSkip) {
 
 	toSkip = 1;
 	if (fastLetterRusEng.isEmpty()) {
-		fastLetterRusEng.insert(QString::fromUtf8("А").at(0), qsl("A"));
+		fastLetterRusEng.insert(QString::fromUtf8("А").at(0), u"A"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Б").at(0), qsl("B"));
+		fastLetterRusEng.insert(QString::fromUtf8("Б").at(0), u"B"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("В").at(0), qsl("V"));
+		fastLetterRusEng.insert(QString::fromUtf8("В").at(0), u"V"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Г").at(0), qsl("G"));
+		fastLetterRusEng.insert(QString::fromUtf8("Г").at(0), u"G"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ґ").at(0), qsl("G"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ґ").at(0), u"G"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Д").at(0), qsl("D"));
+		fastLetterRusEng.insert(QString::fromUtf8("Д").at(0), u"D"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Е").at(0), qsl("E"));
+		fastLetterRusEng.insert(QString::fromUtf8("Е").at(0), u"E"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Є").at(0), qsl("Ye"));
+		fastLetterRusEng.insert(QString::fromUtf8("Є").at(0), u"Ye"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ё").at(0), qsl("Yo"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ё").at(0), u"Yo"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ж").at(0), qsl("Zh"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ж").at(0), u"Zh"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("З").at(0), qsl("Z"));
+		fastLetterRusEng.insert(QString::fromUtf8("З").at(0), u"Z"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("И").at(0), qsl("I"));
+		fastLetterRusEng.insert(QString::fromUtf8("И").at(0), u"I"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ї").at(0), qsl("Yi"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ї").at(0), u"Yi"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("І").at(0), qsl("I"));
+		fastLetterRusEng.insert(QString::fromUtf8("І").at(0), u"I"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Й").at(0), qsl("J"));
+		fastLetterRusEng.insert(QString::fromUtf8("Й").at(0), u"J"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("К").at(0), qsl("K"));
+		fastLetterRusEng.insert(QString::fromUtf8("К").at(0), u"K"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Л").at(0), qsl("L"));
+		fastLetterRusEng.insert(QString::fromUtf8("Л").at(0), u"L"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("М").at(0), qsl("M"));
+		fastLetterRusEng.insert(QString::fromUtf8("М").at(0), u"M"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Н").at(0), qsl("N"));
+		fastLetterRusEng.insert(QString::fromUtf8("Н").at(0), u"N"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("О").at(0), qsl("O"));
+		fastLetterRusEng.insert(QString::fromUtf8("О").at(0), u"O"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("П").at(0), qsl("P"));
+		fastLetterRusEng.insert(QString::fromUtf8("П").at(0), u"P"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Р").at(0), qsl("R"));
+		fastLetterRusEng.insert(QString::fromUtf8("Р").at(0), u"R"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("С").at(0), qsl("S"));
+		fastLetterRusEng.insert(QString::fromUtf8("С").at(0), u"S"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Т").at(0), qsl("T"));
+		fastLetterRusEng.insert(QString::fromUtf8("Т").at(0), u"T"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("У").at(0), qsl("U"));
+		fastLetterRusEng.insert(QString::fromUtf8("У").at(0), u"U"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ў").at(0), qsl("W"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ў").at(0), u"W"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ф").at(0), qsl("F"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ф").at(0), u"F"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Х").at(0), qsl("Kh"));
+		fastLetterRusEng.insert(QString::fromUtf8("Х").at(0), u"Kh"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ц").at(0), qsl("Ts"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ц").at(0), u"Ts"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ч").at(0), qsl("Ch"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ч").at(0), u"Ch"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ш").at(0), qsl("Sh"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ш").at(0), u"Sh"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Щ").at(0), qsl("Sch"));
+		fastLetterRusEng.insert(QString::fromUtf8("Щ").at(0), u"Sch"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Э").at(0), qsl("E"));
+		fastLetterRusEng.insert(QString::fromUtf8("Э").at(0), u"E"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ю").at(0), qsl("Yu"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ю").at(0), u"Yu"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Я").at(0), qsl("Ya"));
+		fastLetterRusEng.insert(QString::fromUtf8("Я").at(0), u"Ya"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ў").at(0), qsl("W"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ў").at(0), u"W"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("а").at(0), qsl("a"));
+		fastLetterRusEng.insert(QString::fromUtf8("а").at(0), u"a"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("б").at(0), qsl("b"));
+		fastLetterRusEng.insert(QString::fromUtf8("б").at(0), u"b"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("в").at(0), qsl("v"));
+		fastLetterRusEng.insert(QString::fromUtf8("в").at(0), u"v"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("г").at(0), qsl("g"));
+		fastLetterRusEng.insert(QString::fromUtf8("г").at(0), u"g"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ґ").at(0), qsl("g"));
+		fastLetterRusEng.insert(QString::fromUtf8("ґ").at(0), u"g"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("д").at(0), qsl("d"));
+		fastLetterRusEng.insert(QString::fromUtf8("д").at(0), u"d"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("е").at(0), qsl("e"));
+		fastLetterRusEng.insert(QString::fromUtf8("е").at(0), u"e"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("є").at(0), qsl("ye"));
+		fastLetterRusEng.insert(QString::fromUtf8("є").at(0), u"ye"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ё").at(0), qsl("yo"));
+		fastLetterRusEng.insert(QString::fromUtf8("ё").at(0), u"yo"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ж").at(0), qsl("zh"));
+		fastLetterRusEng.insert(QString::fromUtf8("ж").at(0), u"zh"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("з").at(0), qsl("z"));
+		fastLetterRusEng.insert(QString::fromUtf8("з").at(0), u"z"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("й").at(0), qsl("y"));
+		fastLetterRusEng.insert(QString::fromUtf8("й").at(0), u"y"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ї").at(0), qsl("yi"));
+		fastLetterRusEng.insert(QString::fromUtf8("ї").at(0), u"yi"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("і").at(0), qsl("i"));
+		fastLetterRusEng.insert(QString::fromUtf8("і").at(0), u"i"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("л").at(0), qsl("l"));
+		fastLetterRusEng.insert(QString::fromUtf8("л").at(0), u"l"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("м").at(0), qsl("m"));
+		fastLetterRusEng.insert(QString::fromUtf8("м").at(0), u"m"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("н").at(0), qsl("n"));
+		fastLetterRusEng.insert(QString::fromUtf8("н").at(0), u"n"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("о").at(0), qsl("o"));
+		fastLetterRusEng.insert(QString::fromUtf8("о").at(0), u"o"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("п").at(0), qsl("p"));
+		fastLetterRusEng.insert(QString::fromUtf8("п").at(0), u"p"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("р").at(0), qsl("r"));
+		fastLetterRusEng.insert(QString::fromUtf8("р").at(0), u"r"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("с").at(0), qsl("s"));
+		fastLetterRusEng.insert(QString::fromUtf8("с").at(0), u"s"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("т").at(0), qsl("t"));
+		fastLetterRusEng.insert(QString::fromUtf8("т").at(0), u"t"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("у").at(0), qsl("u"));
+		fastLetterRusEng.insert(QString::fromUtf8("у").at(0), u"u"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ў").at(0), qsl("w"));
+		fastLetterRusEng.insert(QString::fromUtf8("ў").at(0), u"w"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ф").at(0), qsl("f"));
+		fastLetterRusEng.insert(QString::fromUtf8("ф").at(0), u"f"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("х").at(0), qsl("kh"));
+		fastLetterRusEng.insert(QString::fromUtf8("х").at(0), u"kh"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ц").at(0), qsl("ts"));
+		fastLetterRusEng.insert(QString::fromUtf8("ц").at(0), u"ts"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ч").at(0), qsl("ch"));
+		fastLetterRusEng.insert(QString::fromUtf8("ч").at(0), u"ch"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ш").at(0), qsl("sh"));
+		fastLetterRusEng.insert(QString::fromUtf8("ш").at(0), u"sh"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("щ").at(0), qsl("sch"));
+		fastLetterRusEng.insert(QString::fromUtf8("щ").at(0), u"sch"_q);
 		fastLetterRusEng.insert(QString::fromUtf8("ъ").at(0), QString());
-		fastLetterRusEng.insert(QString::fromUtf8("э").at(0), qsl("e"));
+		fastLetterRusEng.insert(QString::fromUtf8("э").at(0), u"e"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ю").at(0), qsl("yu"));
+		fastLetterRusEng.insert(QString::fromUtf8("ю").at(0), u"yu"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("я").at(0), qsl("ya"));
+		fastLetterRusEng.insert(QString::fromUtf8("я").at(0), u"ya"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ў").at(0), qsl("w"));
+		fastLetterRusEng.insert(QString::fromUtf8("ў").at(0), u"w"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("Ы").at(0), qsl("Y"));
+		fastLetterRusEng.insert(QString::fromUtf8("Ы").at(0), u"Y"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("и").at(0), qsl("i"));
+		fastLetterRusEng.insert(QString::fromUtf8("и").at(0), u"i"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("к").at(0), qsl("k"));
+		fastLetterRusEng.insert(QString::fromUtf8("к").at(0), u"k"_q);
-		fastLetterRusEng.insert(QString::fromUtf8("ы").at(0), qsl("y"));
+		fastLetterRusEng.insert(QString::fromUtf8("ы").at(0), u"y"_q);
 		fastLetterRusEng.insert(QString::fromUtf8("ь").at(0), QString());
 	}
 	QHash<QChar, QString>::const_iterator j = fastLetterRusEng.constFind(letter);
@@ -440,16 +440,16 @@ QString translitLetterRusEng(QChar letter, QChar next, int32 &toSkip) {
 
 QString translitRusEng(const QString &rus) {
 	if (fastRusEng.isEmpty()) {
-		fastRusEng.insert(QString::fromUtf8("Александр"), qsl("Alexander"));
+		fastRusEng.insert(QString::fromUtf8("Александр"), u"Alexander"_q);
-		fastRusEng.insert(QString::fromUtf8("александр"), qsl("alexander"));
+		fastRusEng.insert(QString::fromUtf8("александр"), u"alexander"_q);
-		fastRusEng.insert(QString::fromUtf8("Филипп"), qsl("Philip"));
+		fastRusEng.insert(QString::fromUtf8("Филипп"), u"Philip"_q);
-		fastRusEng.insert(QString::fromUtf8("филипп"), qsl("philip"));
+		fastRusEng.insert(QString::fromUtf8("филипп"), u"philip"_q);
-		fastRusEng.insert(QString::fromUtf8("Пётр"), qsl("Petr"));
+		fastRusEng.insert(QString::fromUtf8("Пётр"), u"Petr"_q);
-		fastRusEng.insert(QString::fromUtf8("пётр"), qsl("petr"));
+		fastRusEng.insert(QString::fromUtf8("пётр"), u"petr"_q);
-		fastRusEng.insert(QString::fromUtf8("Гай"), qsl("Gai"));
+		fastRusEng.insert(QString::fromUtf8("Гай"), u"Gai"_q);
-		fastRusEng.insert(QString::fromUtf8("гай"), qsl("gai"));
+		fastRusEng.insert(QString::fromUtf8("гай"), u"gai"_q);
-		fastRusEng.insert(QString::fromUtf8("Ильин"), qsl("Ilyin"));
+		fastRusEng.insert(QString::fromUtf8("Ильин"), u"Ilyin"_q);
-		fastRusEng.insert(QString::fromUtf8("ильин"), qsl("ilyin"));
+		fastRusEng.insert(QString::fromUtf8("ильин"), u"ilyin"_q);
 	}
 	QMap<QString, QString>::const_iterator i = fastRusEng.constFind(rus);
 	if (i != fastRusEng.cend()) {

Telegram/SourceFiles/core/utils.h

@@ -56,7 +56,7 @@ inline QList<QUrl> GetMimeUrls(const QMimeData *data) {
 inline QString IconName() {
 	static const auto Result = KSandbox::isFlatpak()
 		? qEnvironmentVariable("FLATPAK_ID")
-		: qsl("telegram");
+		: u"telegram"_q;
 	return Result;
 }
 #endif

Telegram/SourceFiles/data/data_document.cpp

@@ -104,7 +104,7 @@ QString FileNameUnsafe(
 	if (Core::App().settings().askDownloadPath() || savingAs) {
 		if (!name.isEmpty() && name.at(0) == QChar::fromLatin1('.')) {
 			name = filedialogDefaultName(prefix, name);
-		} else if (dir.path() != qsl(".")) {
+		} else if (dir.path() != u"."_q) {
 			QString path = dir.absolutePath();
 			if (path != cDialogLastPath()) {
 				cSetDialogLastPath(path);
@@ -115,21 +115,21 @@ QString FileNameUnsafe(
 		// check if extension of filename is present in filter
 		// it should be in first filter section on the first place
 		// place it there, if it is not
-		QString ext = QFileInfo(name).suffix(), fil = filter, sep = qsl(";;");
+		QString ext = QFileInfo(name).suffix(), fil = filter, sep = u";;"_q;
 		if (!ext.isEmpty()) {
-			if (QRegularExpression(qsl("^[a-zA-Z_0-9]+$")).match(ext).hasMatch()) {
+			if (QRegularExpression(u"^[a-zA-Z_0-9]+$"_q).match(ext).hasMatch()) {
 				QStringList filters = filter.split(sep);
 				if (filters.size() > 1) {
 					const auto &first = filters.at(0);
-					int32 start = first.indexOf(qsl("(*."));
+					int32 start = first.indexOf(u"(*."_q);
 					if (start >= 0) {
-						if (!QRegularExpression(qsl("\\(\\*\\.") + ext + qsl("[\\)\\s]"), QRegularExpression::CaseInsensitiveOption).match(first).hasMatch()) {
+						if (!QRegularExpression(u"\\(\\*\\."_q + ext + u"[\\)\\s]"_q, QRegularExpression::CaseInsensitiveOption).match(first).hasMatch()) {
-							QRegularExpressionMatch m = QRegularExpression(qsl(" \\*\\.") + ext + qsl("[\\)\\s]"), QRegularExpression::CaseInsensitiveOption).match(first);
+							QRegularExpressionMatch m = QRegularExpression(u" \\*\\."_q + ext + u"[\\)\\s]"_q, QRegularExpression::CaseInsensitiveOption).match(first);
 							if (m.hasMatch() && m.capturedStart() > start + 3) {
 								int32 oldpos = m.capturedStart(), oldend = m.capturedEnd();
-								fil = first.mid(0, start + 3) + ext + qsl(" *.") + first.mid(start + 3, oldpos - start - 3) + first.mid(oldend - 1) + sep + JoinStringList(filters.mid(1), sep);
+								fil = first.mid(0, start + 3) + ext + u" *."_q + first.mid(start + 3, oldpos - start - 3) + first.mid(oldend - 1) + sep + JoinStringList(filters.mid(1), sep);
 							} else {
-								fil = first.mid(0, start + 3) + ext + qsl(" *.") + first.mid(start + 3) + sep + JoinStringList(filters.mid(1), sep);
+								fil = first.mid(0, start + 3) + ext + u" *."_q + first.mid(start + 3) + sep + JoinStringList(filters.mid(1), sep);
 							}
 						}
 					} else {
@@ -149,19 +149,19 @@ QString FileNameUnsafe(
 		const auto path = Core::App().settings().downloadPath();
 		if (path.isEmpty()) {
 			return File::DefaultDownloadPath(session);
-		} else if (path == qsl("tmp")) {
+		} else if (path == u"tmp"_q) {
 			return session->local().tempDirectory();
 		} else {
 			return path;
 		}
 	}();
 	if (path.isEmpty()) return QString();
-	if (name.isEmpty()) name = qsl(".unknown");
+	if (name.isEmpty()) name = u".unknown"_q;
 	if (name.at(0) == QChar::fromLatin1('.')) {
 		if (!QDir().exists(path)) QDir().mkpath(path);
 		return filedialogDefaultName(prefix, name, path);
 	}
-	if (dir.path() != qsl(".")) {
+	if (dir.path() != u"."_q) {
 		path = dir.absolutePath() + '/';
 	}
 
@@ -176,7 +176,7 @@ QString FileNameUnsafe(
 	QString nameBase = path + nameStart;
 	name = nameBase + extension;
 	for (int i = 0; QFileInfo::exists(name); ++i) {
-		name = nameBase + QString(" (%1)").arg(i + 2) + extension;
+		name = nameBase + u" (%1)"_q.arg(i + 2) + extension;
 	}
 
 	if (!QDir().exists(path)) QDir().mkpath(path);
@@ -202,7 +202,7 @@ QString FileNameForSave(
 #ifdef Q_OS_WIN
 	const auto lower = result.trimmed().toLower();
 	const auto kBadExtensions = { u".lnk"_q, u".scf"_q };
-	const auto kMaskExtension = qsl(".download");
+	const auto kMaskExtension = u".download"_q;
 	for (const auto extension : kBadExtensions) {
 		if (lower.endsWith(extension)) {
 			return result + kMaskExtension;
@@ -228,37 +228,37 @@ QString DocumentFileNameForSave(
 	QString pattern = p.isEmpty() ? QString() : p.front();
 	if (data->isVoiceMessage()) {
 		auto mp3 = data->hasMimeType(u"audio/mp3"_q);
-		name = already.isEmpty() ? (mp3 ? qsl(".mp3") : qsl(".ogg")) : already;
+		name = already.isEmpty() ? (mp3 ? u".mp3"_q : u".ogg"_q) : already;
-		filter = mp3 ? qsl("MP3 Audio (*.mp3);;") : qsl("OGG Opus Audio (*.ogg);;");
+		filter = mp3 ? u"MP3 Audio (*.mp3);;"_q : u"OGG Opus Audio (*.ogg);;"_q;
 		filter += FileDialog::AllFilesFilter();
 		caption = tr::lng_save_audio(tr::now);
-		prefix = qsl("audio");
+		prefix = u"audio"_q;
 	} else if (data->isVideoFile()) {
 		name = already.isEmpty() ? data->filename() : already;
 		if (name.isEmpty()) {
-			name = pattern.isEmpty() ? qsl(".mov") : pattern.replace('*', QString());
+			name = pattern.isEmpty() ? u".mov"_q : pattern.replace('*', QString());
 		}
 		if (pattern.isEmpty()) {
-			filter = qsl("MOV Video (*.mov);;") + FileDialog::AllFilesFilter();
+			filter = u"MOV Video (*.mov);;"_q + FileDialog::AllFilesFilter();
 		} else {
-			filter = mimeType.filterString() + qsl(";;") + FileDialog::AllFilesFilter();
+			filter = mimeType.filterString() + u";;"_q + FileDialog::AllFilesFilter();
 		}
 		caption = tr::lng_save_video(tr::now);
-		prefix = qsl("video");
+		prefix = u"video"_q;
 	} else {
 		name = already.isEmpty() ? data->filename() : already;
 		if (name.isEmpty()) {
-			name = pattern.isEmpty() ? qsl(".unknown") : pattern.replace('*', QString());
+			name = pattern.isEmpty() ? u".unknown"_q : pattern.replace('*', QString());
 		}
 		if (pattern.isEmpty()) {
 			filter = QString();
 		} else {
-			filter = mimeType.filterString() + qsl(";;") + FileDialog::AllFilesFilter();
+			filter = mimeType.filterString() + u";;"_q + FileDialog::AllFilesFilter();
 		}
 		caption = data->isAudioFile()
 			? tr::lng_save_audio_file(tr::now)
 			: tr::lng_save_file(tr::now);
-		prefix = qsl("doc");
+		prefix = u"doc"_q;
 	}
 
 	return FileNameForSave(

Telegram/SourceFiles/data/data_document_resolver.cpp

@@ -152,14 +152,14 @@ bool IsExecutableName(const QString &filepath) {
 	static const auto kExtensions = [] {
 		const auto joined =
 #ifdef Q_OS_MAC
-			qsl("\
+			u"\
 applescript action app bin command csh osx workflow terminal url caction \
-mpkg pkg scpt scptd xhtm webarchive");
+mpkg pkg scpt scptd xhtm webarchive"_q;
 #elif defined Q_OS_UNIX // Q_OS_MAC
-			qsl("bin csh deb desktop ksh out pet pkg pup rpm run sh shar \
+			u"bin csh deb desktop ksh out pet pkg pup rpm run sh shar \
-slp zsh");
+slp zsh"_q;
 #else // Q_OS_MAC || Q_OS_UNIX
-			qsl("\
+			u"\
 ad ade adp app application appref-ms asp asx bas bat bin cab cdxml cer cfg \
 chi chm cmd cnt com cpl crt csh der diagcab dll drv eml exe fon fxp gadget \
 grp hlp hpj hta htt inf ini ins inx isp isu its jar jnlp job js jse key ksh \
@@ -170,7 +170,7 @@ php-s pht phtml pif pl plg pm pod prf prg ps1 ps2 ps1xml ps2xml psc1 psc2 \
 psd1 psm1 pssc pst py py3 pyc pyd pyi pyo pyw pywz pyz rb reg rgs scf scr \
 sct search-ms settingcontent-ms sh shb shs slk sys t tmp u3p url vb vbe vbp \
 vbs vbscript vdx vsmacros vsd vsdm vsdx vss vssm vssx vst vstm vstx vsw vsx \
-vtx website ws wsc wsf wsh xbap xll xnk xs");
+vtx website ws wsc wsf wsh xbap xll xnk xs"_q;
 #endif // !Q_OS_MAC && !Q_OS_UNIX
 		const auto list = joined.split(' ');
 		return base::flat_set<QString>(list.begin(), list.end());

Telegram/SourceFiles/data/data_media_types.cpp

@@ -871,7 +871,7 @@ TextWithEntities MediaFile::notificationText() const {
 		if (_document->isVideoMessage()) {
 			return tr::lng_in_dlg_video_message(tr::now);
 		} else if (_document->isAnimation()) {
-			return qsl("GIF");
+			return u"GIF"_q;
 		} else if (_document->isVideoFile()) {
 			return tr::lng_in_dlg_video(tr::now);
 		} else if (_document->isVoiceMessage()) {
@@ -928,7 +928,7 @@ TextForMimeData MediaFile::clipboardText() const {
 			if (_document->isVideoMessage()) {
 				return tr::lng_in_dlg_video_message(tr::now);
 			}
-			return qsl("GIF");
+			return u"GIF"_q;
 		} else if (_document->isVideoFile()) {
 			return tr::lng_in_dlg_video(tr::now);
 		} else if (_document->isVoiceMessage()) {
@@ -1147,9 +1147,9 @@ QString MediaContact::pinnedTextSubstring() const {
 }
 
 TextForMimeData MediaContact::clipboardText() const {
-	const auto text = qsl("[ ")
+	const auto text = u"[ "_q
 		+ tr::lng_in_dlg_contact(tr::now)
-		+ qsl(" ]\n")
+		+ u" ]\n"_q
 		+ tr::lng_full_name(
 			tr::now,
 			lt_first_name,

Telegram/SourceFiles/data/data_peer.cpp

@@ -650,14 +650,14 @@ void PeerData::fillNames() {
 		}
 		appendToIndex(user->username());
 		if (isSelf()) {
-			const auto english = qsl("Saved messages");
+			const auto english = u"Saved messages"_q;
 			const auto localized = tr::lng_saved_messages(tr::now);
 			appendToIndex(english);
 			if (localized != english) {
 				appendToIndex(localized);
 			}
 		} else if (isRepliesChat()) {
-			const auto english = qsl("Replies");
+			const auto english = u"Replies"_q;
 			const auto localized = tr::lng_replies_messages(tr::now);
 			appendToIndex(english);
 			if (localized != english) {

Telegram/SourceFiles/data/data_web_page.cpp

@@ -20,16 +20,19 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace {
 
 QString SiteNameFromUrl(const QString &url) {
-	QUrl u(url);
+	const auto u = QUrl(url);
 	QString pretty = u.isValid() ? u.toDisplayString() : url;
-	QRegularExpressionMatch m = QRegularExpression(qsl("^[a-zA-Z0-9]+://")).match(pretty);
+	const auto m = QRegularExpression(u"^[a-zA-Z0-9]+://"_q).match(pretty);
 	if (m.hasMatch()) pretty = pretty.mid(m.capturedLength());
 	int32 slash = pretty.indexOf('/');
 	if (slash > 0) pretty = pretty.mid(0, slash);
 	QStringList components = pretty.split('.', Qt::SkipEmptyParts);
 	if (components.size() >= 2) {
 		components = components.mid(components.size() - 2);
-		return components.at(0).at(0).toUpper() + components.at(0).mid(1) + '.' + components.at(1);
+		return components.at(0).at(0).toUpper()
+			+ components.at(0).mid(1)
+			+ '.'
+			+ components.at(1);
 	}
 	return QString();
 }

Telegram/SourceFiles/dialogs/dialogs_inner_widget.cpp

@@ -799,7 +799,7 @@ void InnerWidget::paintEvent(QPaintEvent *e) {
 			const auto text = _searchResults.empty()
 				? tr::lng_search_no_results(tr::now)
 				: showUnreadInSearchResults
-				? qsl("Search results")
+				? u"Search results"_q
 				: tr::lng_search_found_results(
 					tr::now,
 					lt_count,

Telegram/SourceFiles/dialogs/dialogs_widget.cpp

@@ -1771,7 +1771,7 @@ void Widget::dragEnterEvent(QDragEnterEvent *e) {
 	const auto data = e->mimeData();
 	_dragInScroll = false;
 	_dragForward = !controller()->adaptive().isOneColumn()
-		&& data->hasFormat(qsl("application/x-td-forward"));
+		&& data->hasFormat(u"application/x-td-forward"_q);
 	if (_dragForward) {
 		e->setDropAction(Qt::CopyAction);
 		e->accept();

Telegram/SourceFiles/dialogs/ui/dialogs_layout.cpp

@@ -792,7 +792,7 @@ void PaintUnreadBadge(QPainter &p, const QRect &rect, const UnreadBadgeStyle &st
 	const QString &unreadCount,
 	int allowDigits) {
 	return (allowDigits > 0) && (unreadCount.size() > allowDigits + 1)
-		? qsl("..") + unreadCount.mid(unreadCount.size() - allowDigits)
+		? u".."_q + unreadCount.mid(unreadCount.size() - allowDigits)
 		: unreadCount;
 }
 

Telegram/SourceFiles/export/data/export_data_types.cpp

@@ -332,23 +332,23 @@ QString ComputeDocumentName(
 	const auto pattern = patterns.isEmpty() ? QString() : patterns.front();
 	if (data.isVoiceMessage) {
 		const auto isMP3 = hasMimeType(u"audio/mp3"_q);
-		return qsl("audio_")
+		return u"audio_"_q
 			+ QString::number(++context.audios)
 			+ PrepareFileNameDatePart(date)
-			+ (isMP3 ? qsl(".mp3") : qsl(".ogg"));
+			+ (isMP3 ? u".mp3"_q : u".ogg"_q);
 	} else if (data.isVideoFile) {
 		const auto extension = pattern.isEmpty()
-			? qsl(".mov")
+			? u".mov"_q
 			: QString(pattern).replace('*', QString());
-		return qsl("video_")
+		return u"video_"_q
 			+ QString::number(++context.videos)
 			+ PrepareFileNameDatePart(date)
 			+ extension;
 	} else {
 		const auto extension = pattern.isEmpty()
-			? qsl(".unknown")
+			? u".unknown"_q
 			: QString(pattern).replace('*', QString());
-		return qsl("file_")
+		return u"file_"_q
 			+ QString::number(++context.files)
 			+ PrepareFileNameDatePart(date)
 			+ extension;

Telegram/SourceFiles/export/view/export_view_settings.cpp

@@ -378,7 +378,7 @@ void SettingsWidget::addLimitsLabel(
 			? rpl::single(langDayOfMonthFull(
 				base::unixtime::parse(from).date()))
 			: tr::lng_export_beginning()
-		) | Ui::Text::ToLink(qsl("internal:edit_from"));
+		) | Ui::Text::ToLink(u"internal:edit_from"_q);
 	}) | rpl::flatten_latest();
 
 	auto tillLink = value() | rpl::map([](const Settings &data) {
@@ -389,7 +389,7 @@ void SettingsWidget::addLimitsLabel(
 			? rpl::single(langDayOfMonthFull(
 				base::unixtime::parse(till).date()))
 			: tr::lng_export_end()
-		) | Ui::Text::ToLink(qsl("internal:edit_till"));
+		) | Ui::Text::ToLink(u"internal:edit_till"_q);
 	}) | rpl::flatten_latest();
 
 	auto datesText = tr::lng_export_limits(

Telegram/SourceFiles/history/admin_log/history_admin_log_inner.cpp

@@ -1330,12 +1330,12 @@ void InnerWidget::savePhotoToFile(not_null<PhotoData*> photo) {
 		return;
 	}
 
-	auto filter = qsl("JPEG Image (*.jpg);;") + FileDialog::AllFilesFilter();
+	auto filter = u"JPEG Image (*.jpg);;"_q + FileDialog::AllFilesFilter();
 	FileDialog::GetWritePath(
 		this,
 		tr::lng_save_photo(tr::now),
 		filter,
-		filedialogDefaultName(qsl("photo"), qsl(".jpg")),
+		filedialogDefaultName(u"photo"_q, u".jpg"_q),
 		crl::guard(this, [=](const QString &result) {
 			if (!result.isEmpty()) {
 				media->saveToFile(result);
@@ -1885,7 +1885,7 @@ void InnerWidget::performDrag() {
 	//		auto selectedState = getSelectionState();
 	//		if (selectedState.count > 0 && selectedState.count == selectedState.canForwardCount) {
 	//			session().data().setMimeForwardIds(getSelectedItems());
-	//			mimeData->setData(qsl("application/x-td-forward"), "1");
+	//			mimeData->setData(u"application/x-td-forward"_q, "1");
 	//		}
 	//	}
 	//	_controller->window()->launchDrag(std::move(mimeData));
@@ -1897,7 +1897,7 @@ void InnerWidget::performDrag() {
 	//		pressedMedia = pressedItem->media();
 	//		if (_mouseCursorState == CursorState::Date
 	//			|| (pressedMedia && pressedMedia->dragItem())) {
-	//			forwardMimeType = qsl("application/x-td-forward");
+	//			forwardMimeType = u"application/x-td-forward"_q;
 	//			session().data().setMimeForwardIds(
 	//				session().data().itemOrItsGroup(pressedItem->data()));
 	//		}
@@ -1906,7 +1906,7 @@ void InnerWidget::performDrag() {
 	//		if ((pressedMedia = pressedLnkItem->media())) {
 	//			if (forwardMimeType.isEmpty()
 	//				&& pressedMedia->dragItemByHandler(pressedHandler)) {
-	//				forwardMimeType = qsl("application/x-td-forward");
+	//				forwardMimeType = u"application/x-td-forward"_q;
 	//				session().data().setMimeForwardIds(
 	//					{ 1, pressedLnkItem->fullId() });
 	//			}

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -1707,7 +1707,7 @@ std::unique_ptr<QMimeData> HistoryInner::prepareDrag() {
 			auto selectedState = getSelectionState();
 			if (selectedState.count > 0 && selectedState.count == selectedState.canForwardCount) {
 				session().data().setMimeForwardIds(getSelectedItems());
-				mimeData->setData(qsl("application/x-td-forward"), "1");
+				mimeData->setData(u"application/x-td-forward"_q, "1");
 			}
 		}
 		return mimeData;
@@ -1732,7 +1732,7 @@ std::unique_ptr<QMimeData> HistoryInner::prepareDrag() {
 		}
 		session().data().setMimeForwardIds(std::move(forwardIds));
 		auto result = std::make_unique<QMimeData>();
-		result->setData(qsl("application/x-td-forward"), "1");
+		result->setData(u"application/x-td-forward"_q, "1");
 		if (const auto media = view->media()) {
 			if (const auto document = media->getDocument()) {
 				const auto filepath = document->filepath(true);
@@ -2628,14 +2628,12 @@ void HistoryInner::savePhotoToFile(not_null<PhotoData*> photo) {
 		return;
 	}
 
-	auto filter = qsl("JPEG Image (*.jpg);;") + FileDialog::AllFilesFilter();
+	auto filter = u"JPEG Image (*.jpg);;"_q + FileDialog::AllFilesFilter();
 	FileDialog::GetWritePath(
 		this,
 		tr::lng_save_photo(tr::now),
 		filter,
-		filedialogDefaultName(
+		filedialogDefaultName(u"photo"_q, u".jpg"_q),
-			qsl("photo"),
-			qsl(".jpg")),
 		crl::guard(this, [=](const QString &result) {
 			if (!result.isEmpty()) {
 				media->saveToFile(result);

Telegram/SourceFiles/history/history_item.cpp

@@ -78,7 +78,7 @@ not_null<HistoryItem*> CreateUnsupportedMessage(
 		UserId viaBotId,
 		TimeId date,
 		PeerId from) {
-	const auto siteLink = qsl("https://desktop.telegram.org");
+	const auto siteLink = u"https://desktop.telegram.org"_q;
 	auto text = TextWithEntities{
 		tr::lng_message_unsupported(tr::now, lt_link, siteLink)
 	};

Telegram/SourceFiles/history/history_location_manager.cpp

@@ -34,5 +34,9 @@ void LocationClickHandler::setup() {
 
 QString LocationClickHandler::Url(const Data::LocationPoint &point) {
 	const auto latlon = point.latAsString() + ',' + point.lonAsString();
-	return qsl("https://maps.google.com/maps?q=") + latlon + qsl("&ll=") + latlon + qsl("&z=16");
+	return u"https://maps.google.com/maps?q="_q
+		+ latlon
+		+ u"&ll="_q
+		+ latlon
+		+ u"&z=16"_q;
 }

Telegram/SourceFiles/history/history_service.cpp

@@ -138,7 +138,7 @@ void HistoryService::setMessageByAction(const MTPmessageAction &action) {
 				lt_from,
 				fromLinkText(), // Link 1.
 				lt_user,
-				{ .text = qsl("somebody") },
+				{ .text = u"somebody"_q },
 				Ui::Text::WithEntities);
 		} else {
 			result.links.push_back(fromLink());
@@ -928,7 +928,7 @@ HistoryService::PreparedText HistoryService::prepareInvitedToCallText(
 			lt_from,
 			fromLinkText(), // Link 1.
 			lt_user,
-			{ .text = qsl("somebody") },
+			{ .text = u"somebody"_q },
 			lt_chat,
 			chatText,
 			Ui::Text::WithEntities);

Telegram/SourceFiles/history/history_widget.cpp

@@ -4273,7 +4273,7 @@ bool HistoryWidget::insertBotCommand(const QString &cmd) {
 	if (!insertingInlineBot) {
 		auto &textWithTags = _field->getTextWithTags();
 		TextWithTags textWithTagsToSet;
-		QRegularExpressionMatch m = QRegularExpression(qsl("^/[A-Za-z_0-9]{0,64}(@[A-Za-z_0-9]{0,32})?(\\s|$)")).match(textWithTags.text);
+		const auto m = QRegularExpression(u"^/[A-Za-z_0-9]{0,64}(@[A-Za-z_0-9]{0,32})?(\\s|$)"_q).match(textWithTags.text);
 		if (m.hasMatch()) {
 			textWithTagsToSet = _field->getTextWithTagsPart(m.capturedLength());
 		} else {
@@ -4631,7 +4631,7 @@ void HistoryWidget::toggleKeyboard(bool manual) {
 
 void HistoryWidget::startBotCommand() {
 	setFieldText(
-		{ qsl("/"), TextWithTags::Tags() },
+		{ u"/"_q, TextWithTags::Tags() },
 		0,
 		Ui::InputField::HistoryAction::NewEntry);
 }
@@ -7610,7 +7610,7 @@ void HistoryWidget::paintEditHeader(Painter &p, const QRect &rect, int left, int
 	auto timeSinceMessage = ItemDateTime(_replyEditMsg).msecsTo(QDateTime::currentDateTime());
 	auto editTimeLeft = (session().serverConfig().editTimeLimit * 1000LL) - timeSinceMessage;
 	if (editTimeLeft < 2) {
-		editTimeLeftText = qsl("0:00");
+		editTimeLeftText = u"0:00"_q;
 	} else if (editTimeLeft > kDisplayEditTimeWarningMs) {
 		updateIn = static_cast<int>(qMin(editTimeLeft - kDisplayEditTimeWarningMs, qint64(kFullDayInMs)));
 	} else {
@@ -7621,7 +7621,7 @@ void HistoryWidget::paintEditHeader(Painter &p, const QRect &rect, int left, int
 		++updateIn;
 
 		editTimeLeft = (editTimeLeft - 1) / 1000; // seconds
-		editTimeLeftText = qsl("%1:%2").arg(editTimeLeft / 60).arg(editTimeLeft % 60, 2, 10, QChar('0'));
+		editTimeLeftText = u"%1:%2"_q.arg(editTimeLeft / 60).arg(editTimeLeft % 60, 2, 10, QChar('0'));
 	}
 
 	// Restart timer only if we are sure that we've painted the whole timer.

Telegram/SourceFiles/history/view/history_view_bottom_info.cpp

@@ -465,7 +465,7 @@ void BottomInfo::layoutDateText() {
 		? (tr::lng_edited(tr::now) + ' ')
 		: QString();
 	const auto author = _data.author;
-	const auto prefix = !author.isEmpty() ? qsl(", ") : QString();
+	const auto prefix = !author.isEmpty() ? u", "_q : QString();
 	const auto date = edited + QLocale().toString(_data.date, cTimeFormat());
 	const auto afterAuthor = prefix + date;
 	const auto afterAuthorWidth = st::msgDateFont->width(afterAuthor);

Telegram/SourceFiles/history/view/history_view_context_menu.cpp

@@ -110,8 +110,8 @@ void SavePhotoToFile(not_null<PhotoData*> photo) {
 	FileDialog::GetWritePath(
 		Core::App().getFileDialogParent(),
 		tr::lng_save_photo(tr::now),
-		qsl("JPEG Image (*.jpg);;") + FileDialog::AllFilesFilter(),
+		u"JPEG Image (*.jpg);;"_q + FileDialog::AllFilesFilter(),
-		filedialogDefaultName(qsl("photo"), qsl(".jpg")),
+		filedialogDefaultName(u"photo"_q, u".jpg"_q),
 		crl::guard(&photo->session(), [=](const QString &result) {
 			if (!result.isEmpty()) {
 				media->saveToFile(result);

Telegram/SourceFiles/history/view/history_view_list_widget.cpp

@@ -3559,7 +3559,7 @@ std::unique_ptr<QMimeData> ListWidget::prepareDrag() {
 				: MessageIdsList();
 			if (!items.empty()) {
 				session().data().setMimeForwardIds(std::move(items));
-				mimeData->setData(qsl("application/x-td-forward"), "1");
+				mimeData->setData(u"application/x-td-forward"_q, "1");
 			}
 		}
 		return mimeData;
@@ -3589,7 +3589,7 @@ std::unique_ptr<QMimeData> ListWidget::prepareDrag() {
 		}
 		session().data().setMimeForwardIds(std::move(forwardIds));
 		auto result = std::make_unique<QMimeData>();
-		result->setData(qsl("application/x-td-forward"), "1");
+		result->setData(u"application/x-td-forward"_q, "1");
 		if (const auto media = pressedView->media()) {
 			if (const auto document = media->getDocument()) {
 				const auto filepath = document->filepath(true);

Telegram/SourceFiles/history/view/history_view_top_bar_widget.cpp

@@ -1402,7 +1402,7 @@ void TopBarWidget::updateUnreadBadge() {
 			return QString();
 		}
 		return (counter > 999)
-			? qsl("..%1").arg(counter % 100, 2, 10, QChar('0'))
+			? u"..%1"_q.arg(counter % 100, 2, 10, QChar('0'))
 			: QString::number(counter);
 	}();
 	_unreadBadge->setText(text, !muted);

Telegram/SourceFiles/history/view/media/history_view_file.cpp

@@ -75,7 +75,7 @@ void File::setStatusSize(
 	if (_statusSize == Ui::FileStatusSizeReady) {
 		_statusText = (duration >= 0) ? Ui::FormatDurationAndSizeText(duration, fullSize) : (duration < -1 ? Ui::FormatGifAndSizeText(fullSize) : Ui::FormatSizeText(fullSize));
 	} else if (_statusSize == Ui::FileStatusSizeLoaded) {
-		_statusText = (duration >= 0) ? Ui::FormatDurationText(duration) : (duration < -1 ? qsl("GIF") : Ui::FormatSizeText(fullSize));
+		_statusText = (duration >= 0) ? Ui::FormatDurationText(duration) : (duration < -1 ? u"GIF"_q : Ui::FormatSizeText(fullSize));
 	} else if (_statusSize == Ui::FileStatusSizeFailed) {
 		_statusText = tr::lng_attach_failed(tr::now);
 	} else if (_statusSize >= 0) {

Telegram/SourceFiles/info/media/info_media_list_widget.cpp

@@ -1645,7 +1645,7 @@ void ListWidget::performDrag() {
 	//		auto selectedState = getSelectionState();
 	//		if (selectedState.count > 0 && selectedState.count == selectedState.canForwardCount) {
 	//			session().data().setMimeForwardIds(collectSelectedIds());
-	//			mimeData->setData(qsl("application/x-td-forward"), "1");
+	//			mimeData->setData(u"application/x-td-forward"_q, "1");
 	//		}
 	//	}
 	//	_controller->parentController()->window()->launchDrag(std::move(mimeData));
@@ -1657,14 +1657,14 @@ void ListWidget::performDrag() {
 	//		pressedMedia = pressedItem->getMedia();
 	//		if (_mouseCursorState == CursorState::Date || (pressedMedia && pressedMedia->dragItem())) {
 	//			session().data().setMimeForwardIds(session().data().itemOrItsGroup(pressedItem));
-	//			forwardMimeType = qsl("application/x-td-forward");
+	//			forwardMimeType = u"application/x-td-forward"_q;
 	//		}
 	//	}
 	//	if (auto pressedLnkItem = App::pressedLinkItem()) {
 	//		if ((pressedMedia = pressedLnkItem->getMedia())) {
 	//			if (forwardMimeType.isEmpty() && pressedMedia->dragItemByHandler(pressedHandler)) {
 	//				session().data().setMimeForwardIds({ 1, pressedLnkItem->fullId() });
-	//				forwardMimeType = qsl("application/x-td-forward");
+	//				forwardMimeType = u"application/x-td-forward"_q;
 	//			}
 	//		}
 	//	}

Telegram/SourceFiles/info/profile/info_profile_actions.cpp

@@ -853,10 +853,10 @@ void ActionsFiller::addBotCommandActions(not_null<UserData*> user) {
 	};
 	addBotCommand(
 		tr::lng_profile_bot_help(),
-		qsl("help"),
+		u"help"_q,
 		&st::infoIconInformation);
-	addBotCommand(tr::lng_profile_bot_settings(), qsl("settings"));
+	addBotCommand(tr::lng_profile_bot_settings(), u"settings"_q);
-	addBotCommand(tr::lng_profile_bot_privacy(), qsl("privacy"));
+	addBotCommand(tr::lng_profile_bot_privacy(), u"privacy"_q);
 }
 
 void ActionsFiller::addReportAction() {

Telegram/SourceFiles/inline_bots/inline_bot_layout_internal.cpp

@@ -1154,7 +1154,7 @@ void File::setStatusSize(
 	if (_statusSize == Ui::FileStatusSizeReady) {
 		_statusText = (duration >= 0) ? Ui::FormatDurationAndSizeText(duration, fullSize) : (duration < -1 ? Ui::FormatGifAndSizeText(fullSize) : Ui::FormatSizeText(fullSize));
 	} else if (_statusSize == Ui::FileStatusSizeLoaded) {
-		_statusText = (duration >= 0) ? Ui::FormatDurationText(duration) : (duration < -1 ? qsl("GIF") : Ui::FormatSizeText(fullSize));
+		_statusText = (duration >= 0) ? Ui::FormatDurationText(duration) : (duration < -1 ? u"GIF"_q : Ui::FormatSizeText(fullSize));
 	} else if (_statusSize == Ui::FileStatusSizeFailed) {
 		_statusText = tr::lng_attach_failed(tr::now);
 	} else if (_statusSize >= 0) {

Telegram/SourceFiles/inline_bots/inline_bot_result.cpp

@@ -507,10 +507,10 @@ MTPVector<MTPDocumentAttribute> Result::adjustAttributes(
 				const auto p = Core::MimeTypeForName(mime).globPatterns();
 				auto pattern = p.isEmpty() ? QString() : p.front();
 				const auto extension = pattern.isEmpty()
-					? qsl(".unknown")
+					? u".unknown"_q
 					: pattern.replace('*', QString());
 				const auto filename = filedialogDefaultName(
-					qsl("inline"),
+					u"inline"_q,
 					extension,
 					QString(),
 					true);

Telegram/SourceFiles/intro/intro_code.cpp

@@ -145,18 +145,18 @@ void CodeWidget::updateCallText() {
 				return tr::lng_code_call(
 					tr::now,
 					lt_minutes,
-					qsl("%1:%2"
+					(u"%1:%2"_q
 					).arg(_callTimeout / 3600
 					).arg((_callTimeout / 60) % 60, 2, 10, QChar('0')),
 					lt_seconds,
-					qsl("%1").arg(_callTimeout % 60, 2, 10, QChar('0')));
+					u"%1"_q.arg(_callTimeout % 60, 2, 10, QChar('0')));
 			} else {
 				return tr::lng_code_call(
 					tr::now,
 					lt_minutes,
 					QString::number(_callTimeout / 60),
 					lt_seconds,
-					qsl("%1").arg(_callTimeout % 60, 2, 10, QChar('0')));
+					u"%1"_q.arg(_callTimeout % 60, 2, 10, QChar('0')));
 			}
 		} break;
 		case CallStatus::Calling:

Telegram/SourceFiles/intro/intro_phone.cpp

@@ -86,7 +86,7 @@ PhoneWidget::PhoneWidget(
 	setupQrLogin();
 
 	if (!_country->chooseCountry(getData()->country)) {
-		_country->chooseCountry(qsl("US"));
+		_country->chooseCountry(u"US"_q);
 	}
 	_changed = false;
 }

Telegram/SourceFiles/intro/intro_start.cpp

@@ -24,7 +24,7 @@ StartWidget::StartWidget(
 	not_null<Data*> data)
 : Step(parent, account, data, true) {
 	setMouseTracking(true);
-	setTitleText(rpl::single(qsl("Telegram Desktop")));
+	setTitleText(rpl::single(u"Telegram Desktop"_q));
 	setDescriptionText(tr::lng_intro_about());
 	show();
 }

Telegram/SourceFiles/lang/lang_instance.cpp

@@ -19,7 +19,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace Lang {
 namespace {
 
-const auto kSerializeVersionTag = qsl("#new");
+const auto kSerializeVersionTag = u"#new"_q;
 constexpr auto kSerializeVersion = 1;
 constexpr auto kDefaultLanguage = "en"_cs;
 constexpr auto kCloudLangPackName = "tdesktop"_cs;
@@ -231,11 +231,11 @@ QString CustomLanguageId() {
 
 Language DefaultLanguage() {
 	return Language{
-		qsl("en"),
+		u"en"_q,
 		QString(),
 		QString(),
-		qsl("English"),
+		u"English"_q,
-		qsl("English"),
+		u"English"_q,
 	};
 }
 

Telegram/SourceFiles/layout/layout_document_generic_preview.cpp

@@ -31,7 +31,7 @@ DocumentGenericPreview DocumentGenericPreview::Create(
 		? (document->filename().isEmpty()
 			? (document->sticker()
 				? tr::lng_in_dlg_sticker(tr::now)
-				: qsl("Unknown File"))
+				: u"Unknown File"_q)
 			: document->filename())
 		: tr::lng_message_empty(tr::now)).toLower();
 	auto lastDot = name.lastIndexOf('.');

Telegram/SourceFiles/logs.cpp

@@ -80,7 +80,7 @@ public:
 	}
 
 	bool openMain() {
-		return reopen(LogDataMain, 0, qsl("start"));
+		return reopen(LogDataMain, 0, u"start"_q);
 	}
 
 	void closeMain() {
@@ -181,7 +181,7 @@ private:
 				int32 oldest = -1; // find not existing log_startX.txt or pick the oldest one (by lastModified)
 				QDateTime oldestLastModified;
 				for (int32 i = 0; i < 10; ++i) {
-					QString trying = _logsFilePath(type, qsl("_start%1").arg(i));
+					QString trying = _logsFilePath(type, u"_start%1"_q.arg(i));
 					files[type]->setFileName(trying);
 					if (!files[type]->exists()) {
 						LogsStartIndexChosen = i;
@@ -195,7 +195,7 @@ private:
 					}
 				}
 				if (!found) {
-					files[type]->setFileName(_logsFilePath(type, qsl("_start%1").arg(oldest)));
+					files[type]->setFileName(_logsFilePath(type, u"_start%1"_q.arg(oldest)));
 					LogsStartIndexChosen = oldest;
 				}
 			}
@@ -437,7 +437,7 @@ void start(not_null<Core::Launcher*> launcher) {
 
 	if (!LogsData) {
 		LOG(("FATAL: Could not open '%1' for writing log!"
-			).arg(_logsFilePath(LogDataMain, qsl("_startXX"))));
+			).arg(_logsFilePath(LogDataMain, u"_startXX"_q)));
 		return;
 	}
 

Telegram/SourceFiles/mainwidget.cpp

@@ -634,7 +634,7 @@ bool MainWidget::filesOrForwardDrop(
 		}
 		return true;
 	}
-	if (data->hasFormat(qsl("application/x-td-forward"))) {
+	if (data->hasFormat(u"application/x-td-forward"_q)) {
 		auto draft = Data::ForwardDraft{
 			.ids = session().data().takeMimeForwardIds(),
 		};

Telegram/SourceFiles/media/system_media_controls_manager.cpp

@@ -55,7 +55,7 @@ SystemMediaControlsManager::SystemMediaControlsManager(
 
 	// Flatpak provides default permission to MPRIS, but not snap
 	if (!KSandbox::isFlatpak()) {
-		_controls->setServiceName(qsl("tdesktop"));
+		_controls->setServiceName(u"tdesktop"_q);
 	}
 	_controls->setApplicationName(AppName.utf16());
 	const auto inited = _controls->init(controller->widget());

Telegram/SourceFiles/media/view/media_view_overlay_widget.cpp

@@ -314,7 +314,7 @@ OverlayWidget::OverlayWidget()
 		? Core::App().settings().videoVolume()
 		: Core::Settings::kDefaultVolume;
 
-	_widget->setWindowTitle(qsl("Media viewer"));
+	_widget->setWindowTitle(u"Media viewer"_q);
 
 	const auto text = tr::lng_mediaview_saved_to(
 		tr::now,
@@ -1617,20 +1617,20 @@ void OverlayWidget::saveAs() {
 			QStringList p = mimeType.globPatterns();
 			QString pattern = p.isEmpty() ? QString() : p.front();
 			if (name.isEmpty()) {
-				name = pattern.isEmpty() ? qsl(".unknown") : pattern.replace('*', QString());
+				name = pattern.isEmpty() ? u".unknown"_q : pattern.replace('*', QString());
 			}
 
 			if (pattern.isEmpty()) {
 				filter = QString();
 			} else {
-				filter = mimeType.filterString() + qsl(";;") + FileDialog::AllFilesFilter();
+				filter = mimeType.filterString() + u";;"_q + FileDialog::AllFilesFilter();
 			}
 
 			file = FileNameForSave(
 				_session,
 				tr::lng_save_file(tr::now),
 				filter,
-				qsl("doc"),
+				u"doc"_q,
 				name,
 				true,
 				alreadyDir);
@@ -1667,14 +1667,14 @@ void OverlayWidget::saveAs() {
 		constexpr auto large = Data::PhotoSize::Large;
 		if (const auto bytes = _photoMedia->videoContent(large); !bytes.isEmpty()) {
 			const auto photo = _photo;
-			auto filter = qsl("Video Files (*.mp4);;") + FileDialog::AllFilesFilter();
+			auto filter = u"Video Files (*.mp4);;"_q + FileDialog::AllFilesFilter();
 			FileDialog::GetWritePath(
 				_widget.get(),
 				tr::lng_save_video(tr::now),
 				filter,
 				filedialogDefaultName(
-					qsl("photo"),
+					u"photo"_q,
-					qsl(".mp4"),
+					u".mp4"_q,
 					QString(),
 					false,
 					_photo->date),
@@ -1697,15 +1697,15 @@ void OverlayWidget::saveAs() {
 
 		const auto media = _photoMedia;
 		const auto photo = _photo;
-		const auto filter = qsl("JPEG Image (*.jpg);;")
+		const auto filter = u"JPEG Image (*.jpg);;"_q
 			+ FileDialog::AllFilesFilter();
 		FileDialog::GetWritePath(
 			_widget.get(),
 			tr::lng_save_photo(tr::now),
 			filter,
 			filedialogDefaultName(
-				qsl("photo"),
+				u"photo"_q,
-				qsl(".jpg"),
+				u".jpg"_q,
 				QString(),
 				false,
 				_photo->date),
@@ -1745,7 +1745,7 @@ void OverlayWidget::downloadMedia() {
 	const auto session = _photo ? &_photo->session() : &_document->session();
 	if (Core::App().settings().downloadPath().isEmpty()) {
 		path = File::DefaultDownloadPath(session);
-	} else if (Core::App().settings().downloadPath() == qsl("tmp")) {
+	} else if (Core::App().settings().downloadPath() == u"tmp"_q) {
 		path = session->local().tempDirectory();
 	} else {
 		path = Core::App().settings().downloadPath();
@@ -1792,7 +1792,7 @@ void OverlayWidget::downloadMedia() {
 			if (!QDir().exists(path)) {
 				QDir().mkpath(path);
 			}
-			toName = filedialogDefaultName(qsl("photo"), qsl(".mp4"), path);
+			toName = filedialogDefaultName(u"photo"_q, u".mp4"_q, path);
 			if (!_photoMedia->saveToFile(toName)) {
 				toName = QString();
 			}
@@ -1808,7 +1808,7 @@ void OverlayWidget::downloadMedia() {
 			if (!QDir().exists(path)) {
 				QDir().mkpath(path);
 			}
-			toName = filedialogDefaultName(qsl("photo"), qsl(".jpg"), path);
+			toName = filedialogDefaultName(u"photo"_q, u".jpg"_q, path);
 			const auto saved = _photoMedia->saveToFile(toName);
 			if (!saved) {
 				toName = QString();
@@ -2676,7 +2676,7 @@ void OverlayWidget::displayDocument(
 			_docName = (_document->type == StickerDocument)
 				? tr::lng_in_dlg_sticker(tr::now)
 				: (_document->type == AnimatedDocument
-					? qsl("GIF")
+					? u"GIF"_q
 					: (_document->filename().isEmpty()
 						? tr::lng_mediaview_doc_image(tr::now)
 						: _document->filename()));

Telegram/SourceFiles/mtproto/connection_http.cpp

@@ -40,8 +40,12 @@ void HttpConnection::sendData(mtpBuffer &&buffer) {
 	int32 requestSize = (buffer.size() - 2) * sizeof(mtpPrime);
 
 	QNetworkRequest request(url());
-	request.setHeader(QNetworkRequest::ContentLengthHeader, QVariant(requestSize));
+	request.setHeader(
-	request.setHeader(QNetworkRequest::ContentTypeHeader, QVariant(qsl("application/x-www-form-urlencoded")));
+		QNetworkRequest::ContentLengthHeader,
+		QVariant(requestSize));
+	request.setHeader(
+		QNetworkRequest::ContentTypeHeader,
+		QVariant(u"application/x-www-form-urlencoded"_q));
 
 	CONNECTION_LOG_INFO(u"Sending %1 len request."_q.arg(requestSize));
 	_requests.insert(_manager.post(request, QByteArray((const char*)(&buffer[2]), requestSize)));
@@ -255,27 +259,27 @@ QString HttpConnection::transport() const {
 	if (!isConnected()) {
 		return QString();
 	}
-	auto result = qsl("HTTP");
+	auto result = u"HTTP"_q;
 	if (qthelp::is_ipv6(_address)) {
-		result += qsl("/IPv6");
+		result += u"/IPv6"_q;
 	}
 	return result;
 }
 
 QString HttpConnection::tag() const {
-	auto result = qsl("HTTP");
+	auto result = u"HTTP"_q;
 	if (qthelp::is_ipv6(_address)) {
-		result += qsl("/IPv6");
+		result += u"/IPv6"_q;
 	} else {
-		result += qsl("/IPv4");
+		result += u"/IPv4"_q;
 	}
 	return result;
 }
 
 QUrl HttpConnection::url() const {
 	const auto pattern = qthelp::is_ipv6(_address)
-		? qsl("http://[%1]:%2/api")
+		? u"http://[%1]:%2/api"_q
-		: qsl("http://%1:%2/api");
+		: u"http://%1:%2/api"_q;
 
 	// Not endpoint.port - always 80 port for http transport.
 	return QUrl(pattern.arg(_address).arg(kForceHttpPort));

Telegram/SourceFiles/mtproto/connection_tcp.cpp

@@ -636,19 +636,19 @@ QString TcpConnection::transport() const {
 	if (!isConnected()) {
 		return QString();
 	}
-	auto result = qsl("TCP");
+	auto result = u"TCP"_q;
 	if (qthelp::is_ipv6(_address)) {
-		result += qsl("/IPv6");
+		result += u"/IPv6"_q;
 	}
 	return result;
 }
 
 QString TcpConnection::tag() const {
-	auto result = qsl("TCP");
+	auto result = u"TCP"_q;
 	if (qthelp::is_ipv6(_address)) {
-		result += qsl("/IPv6");
+		result += u"/IPv6"_q;
 	} else {
-		result += qsl("/IPv4");
+		result += u"/IPv4"_q;
 	}
 	return result;
 }

Telegram/SourceFiles/mtproto/mtp_instance.cpp

@@ -1342,7 +1342,7 @@ bool Instance::Private::onErrorDefault(
 	const auto requestId = response.requestId;
 	const auto &type = error.type();
 	const auto code = error.code();
-	auto badGuestDc = (code == 400) && (type == qsl("FILE_ID_INVALID"));
+	auto badGuestDc = (code == 400) && (type == u"FILE_ID_INVALID"_q);
 	QRegularExpressionMatch m1, m2;
 	if ((m1 = QRegularExpression("^(FILE|PHONE|NETWORK|USER)_MIGRATE_(\\d+)$").match(type)).hasMatch()) {
 		if (!requestId) return false;

Telegram/SourceFiles/mtproto/special_config_request.cpp

@@ -100,7 +100,7 @@ QByteArray ParseRemoteConfigResponse(const QByteArray &bytes) {
 	return document.object().value(
 		"entries"
 	).toObject().value(
-		qsl("%1%2").arg(kConfigKey, kConfigSubKey)
+		u"%1%2"_q.arg(kConfigKey, kConfigSubKey)
 	).toString().toLatin1();
 }
 
@@ -283,22 +283,22 @@ void SpecialConfigRequest::sendNextRequest() {
 void SpecialConfigRequest::performRequest(const Attempt &attempt) {
 	const auto type = attempt.type;
 	auto url = QUrl();
-	url.setScheme(qsl("https"));
+	url.setScheme(u"https"_q);
 	auto request = QNetworkRequest();
 	auto payload = QByteArray();
 	switch (type) {
 	case Type::Mozilla: {
 		url.setHost(attempt.data);
-		url.setPath(qsl("/dns-query"));
+		url.setPath(u"/dns-query"_q);
-		url.setQuery(qsl("name=%1&type=16&random_padding=%2").arg(
+		url.setQuery(u"name=%1&type=16&random_padding=%2"_q.arg(
 			_domainString,
 			GenerateDnsRandomPadding()));
 		request.setRawHeader("accept", "application/dns-json");
 	} break;
 	case Type::Google: {
 		url.setHost(attempt.data);
-		url.setPath(qsl("/resolve"));
+		url.setPath(u"/resolve"_q);
-		url.setQuery(qsl("name=%1&type=ANY&random_padding=%2").arg(
+		url.setQuery(u"name=%1&type=ANY&random_padding=%2"_q.arg(
 			_domainString,
 			GenerateDnsRandomPadding()));
 		if (!attempt.host.isEmpty()) {
@@ -308,23 +308,23 @@ void SpecialConfigRequest::performRequest(const Attempt &attempt) {
 	} break;
 	case Type::RemoteConfig: {
 		url.setHost(ApiDomain(attempt.data));
-		url.setPath(qsl("/v1/projects/%1/namespaces/firebase:fetch"
+		url.setPath((u"/v1/projects/%1/namespaces/firebase:fetch"_q
 		).arg(kRemoteProject));
-		url.setQuery(qsl("key=%1").arg(kApiKey));
+		url.setQuery(u"key=%1"_q.arg(kApiKey));
-		payload = qsl("{\"app_id\":\"%1\",\"app_instance_id\":\"%2\"}").arg(
+		payload = u"{\"app_id\":\"%1\",\"app_instance_id\":\"%2\"}"_q.arg(
 			kAppId,
 			InstanceId()).toLatin1();
 		request.setRawHeader("Content-Type", "application/json");
 	} break;
 	case Type::Realtime: {
-		url.setHost(kFireProject + qsl(".%1").arg(attempt.data));
+		url.setHost(kFireProject + u".%1"_q.arg(attempt.data));
-		url.setPath(qsl("/%1%2.json").arg(kConfigKey, kConfigSubKey));
+		url.setPath(u"/%1%2.json"_q.arg(kConfigKey, kConfigSubKey));
 	} break;
 	case Type::FireStore: {
 		url.setHost(attempt.host.isEmpty()
 			? ApiDomain(attempt.data)
 			: attempt.data);
-		url.setPath(qsl("/v1/projects/%1/databases/(default)/documents/%2/%3"
+		url.setPath((u"/v1/projects/%1/databases/(default)/documents/%2/%3"_q
 		).arg(
 			kFireProject,
 			kConfigKey,
@@ -517,7 +517,7 @@ void SpecialConfigRequest::handleResponse(const QByteArray &bytes) {
 		for (const auto &address : data.vips().v) {
 			const auto parseIp = [](const MTPint &ipv4) {
 				const auto ip = *reinterpret_cast<const uint32*>(&ipv4.v);
-				return qsl("%1.%2.%3.%4"
+				return (u"%1.%2.%3.%4"_q
 				).arg((ip >> 24) & 0xFF
 				).arg((ip >> 16) & 0xFF
 				).arg((ip >> 8) & 0xFF

Telegram/SourceFiles/overview/overview_layout.cpp

@@ -276,7 +276,7 @@ void StatusText::update(
 	if (_size == Ui::FileStatusSizeReady) {
 		_text = (duration >= 0) ? Ui::FormatDurationAndSizeText(duration, fullSize) : (duration < -1 ? Ui::FormatGifAndSizeText(fullSize) : Ui::FormatSizeText(fullSize));
 	} else if (_size == Ui::FileStatusSizeLoaded) {
-		_text = (duration >= 0) ? Ui::FormatDurationText(duration) : (duration < -1 ? qsl("GIF") : Ui::FormatSizeText(fullSize));
+		_text = (duration >= 0) ? Ui::FormatDurationText(duration) : (duration < -1 ? u"GIF"_q : Ui::FormatSizeText(fullSize));
 	} else if (_size == Ui::FileStatusSizeFailed) {
 		_text = tr::lng_attach_failed(tr::now);
 	} else if (_size >= 0) {
@@ -1531,7 +1531,7 @@ Link::Link(
 		}
 		int32 afterLinkStart = entity.offset() + entity.length();
 		if (till > afterLinkStart) {
-			if (!QRegularExpression(qsl("^[,.\\s_=+\\-;:`'\"\\(\\)\\[\\]\\{\\}<>*&^%\\$#@!\\\\/]+$")).match(text.mid(afterLinkStart, till - afterLinkStart)).hasMatch()) {
+			if (!QRegularExpression(u"^[,.\\s_=+\\-;:`'\"\\(\\)\\[\\]\\{\\}<>*&^%\\$#@!\\\\/]+$"_q).match(text.mid(afterLinkStart, till - afterLinkStart)).hasMatch()) {
 				++lnk;
 				break;
 			}
@@ -1539,7 +1539,7 @@ Link::Link(
 		till = entity.offset();
 	}
 	if (!lnk) {
-		if (QRegularExpression(qsl("^[,.\\s\\-;:`'\"\\(\\)\\[\\]\\{\\}<>*&^%\\$#@!\\\\/]+$")).match(text.mid(from, till - from)).hasMatch()) {
+		if (QRegularExpression(u"^[,.\\s\\-;:`'\"\\(\\)\\[\\]\\{\\}<>*&^%\\$#@!\\\\/]+$"_q).match(text.mid(from, till - from)).hasMatch()) {
 			till = from;
 		}
 	}

Telegram/SourceFiles/passport/passport_edit_identity_box.cpp

@@ -267,9 +267,9 @@ void IdentityBox::updateControlsPosition() {
 
 void IdentityBox::chooseScan() {
 	const auto filter = FileDialog::AllFilesFilter()
-		+ qsl(";;Image files (*")
+		+ u";;Image files (*"_q
-		+ cImgExtensions().join(qsl(" *"))
+		+ cImgExtensions().join(u" *"_q)
-		+ qsl(")");
+		+ u")"_q;
 	const auto callback = [=](FileDialog::OpenResult &&result) {
 		if (result.paths.size() == 1) {
 			encryptScan(result.paths.front());

Telegram/SourceFiles/passport/passport_form_controller.cpp

@@ -268,10 +268,9 @@ auto ParseConfig(const QByteArray &json) {
 } // namespace
 
 QString NonceNameByScope(const QString &scope) {
-	if (scope.startsWith('{') && scope.endsWith('}')) {
+	return (scope.startsWith('{') && scope.endsWith('}'))
-		return qsl("nonce");
+		? u"nonce"_q
-	}
+		: u"payload"_q;
-	return qsl("payload");
 }
 
 bool ValueChanged(not_null<const Value*> value, const ValueMap &data) {

Telegram/SourceFiles/passport/passport_panel_controller.cpp

@@ -217,7 +217,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Text,
-				qsl("first_name"),
+				"first_name"_q,
 				tr::lng_passport_first_name(tr::now),
 				NameValidate,
 				DontFormat,
@@ -226,27 +226,27 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Text,
-				qsl("middle_name"),
+				"middle_name"_q,
 				tr::lng_passport_middle_name(tr::now),
 				NameOrEmptyValidate,
 				DontFormat,
 				kMaxNameSize,
-				qsl("first_name"),
+				"first_name"_q,
 			},
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Text,
-				qsl("last_name"),
+				"last_name"_q,
 				tr::lng_passport_last_name(tr::now),
 				NameValidate,
 				DontFormat,
 				kMaxNameSize,
-				qsl("first_name"),
+				"first_name"_q,
 			},
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Date,
-				qsl("birth_date"),
+				"birth_date"_q,
 				tr::lng_passport_birth_date(tr::now),
 				DateValidate,
 				DontFormat,
@@ -254,7 +254,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Gender,
-				qsl("gender"),
+				"gender"_q,
 				tr::lng_passport_gender(tr::now),
 				GenderValidate,
 				GenderFormat,
@@ -262,7 +262,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Country,
-				qsl("country_code"),
+				"country_code"_q,
 				tr::lng_passport_country(tr::now),
 				CountryValidate,
 				CountryFormat,
@@ -270,7 +270,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Country,
-				qsl("residence_country_code"),
+				"residence_country_code"_q,
 				tr::lng_passport_residence_country(tr::now),
 				CountryValidate,
 				CountryFormat,
@@ -278,7 +278,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Scans,
 				Ui::PanelDetailsType::Text,
-				qsl("document_no"),
+				"document_no"_q,
 				tr::lng_passport_document_number(tr::now),
 				DocumentValidate,
 				DontFormat,
@@ -287,14 +287,14 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Scans,
 				Ui::PanelDetailsType::Date,
-				qsl("expiry_date"),
+				"expiry_date"_q,
 				tr::lng_passport_expiry_date(tr::now),
 				DateOrEmptyValidate,
 				DontFormat,
 			},
 		};
 		if (nativeNames) {
-			result.additionalDependencyKey = qsl("residence_country_code");
+			result.additionalDependencyKey = "residence_country_code"_q;
 
 			result.preferredLanguage = preferredLanguage
 				? std::move(preferredLanguage)
@@ -342,35 +342,35 @@ EditDocumentScheme GetDocumentScheme(
 				{
 					ValueClass::Additional,
 					Ui::PanelDetailsType::Text,
-					qsl("first_name_native"),
+					"first_name_native"_q,
 					tr::lng_passport_first_name(tr::now),
 					NativeNameValidate,
 					DontFormat,
 					kMaxNameSize,
 					QString(),
-					qsl("first_name"),
+					"first_name"_q,
 				},
 				{
 					ValueClass::Additional,
 					Ui::PanelDetailsType::Text,
-					qsl("middle_name_native"),
+					"middle_name_native"_q,
 					tr::lng_passport_middle_name(tr::now),
 					NativeNameOrEmptyValidate,
 					DontFormat,
 					kMaxNameSize,
-					qsl("first_name_native"),
+					"first_name_native"_q,
-					qsl("middle_name"),
+					"middle_name"_q,
 				},
 				{
 					ValueClass::Additional,
 					Ui::PanelDetailsType::Text,
-					qsl("last_name_native"),
+					"last_name_native"_q,
 					tr::lng_passport_last_name(tr::now),
 					NativeNameValidate,
 					DontFormat,
 					kMaxNameSize,
-					qsl("first_name_native"),
+					"first_name_native"_q,
-					qsl("last_name"),
+					"last_name"_q,
 				},
 			};
 			for (auto &row : additional) {
@@ -409,7 +409,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Text,
-				qsl("street_line1"),
+				"street_line1"_q,
 				tr::lng_passport_street(tr::now),
 				StreetValidate,
 				DontFormat,
@@ -418,7 +418,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Text,
-				qsl("street_line2"),
+				"street_line2"_q,
 				tr::lng_passport_street(tr::now),
 				DontValidate,
 				DontFormat,
@@ -427,7 +427,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Text,
-				qsl("city"),
+				"city"_q,
 				tr::lng_passport_city(tr::now),
 				CityValidate,
 				DontFormat,
@@ -436,7 +436,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Text,
-				qsl("state"),
+				"state"_q,
 				tr::lng_passport_state(tr::now),
 				DontValidate,
 				DontFormat,
@@ -445,7 +445,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Country,
-				qsl("country_code"),
+				"country_code"_q,
 				tr::lng_passport_country(tr::now),
 				CountryValidate,
 				CountryFormat,
@@ -453,7 +453,7 @@ EditDocumentScheme GetDocumentScheme(
 			{
 				ValueClass::Fields,
 				Ui::PanelDetailsType::Postcode,
-				qsl("post_code"),
+				"post_code"_q,
 				tr::lng_passport_postcode(tr::now),
 				PostcodeValidate,
 				DontFormat,
@@ -512,18 +512,18 @@ EditContactScheme GetContactScheme(Scope::Type type) {
 
 const std::map<QString, QString> &LatinToNativeMap() {
 	static const auto result = std::map<QString, QString> {
-		{ qsl("first_name"), qsl("first_name_native") },
+		{ "first_name"_q, "first_name_native"_q },
-		{ qsl("last_name"), qsl("last_name_native") },
+		{ "last_name"_q, "last_name_native"_q },
-		{ qsl("middle_name"), qsl("middle_name_native") },
+		{ "middle_name"_q, "middle_name_native"_q },
 	};
 	return result;
 }
 
 const std::map<QString, QString> &NativeToLatinMap() {
 	static const auto result = std::map<QString, QString> {
-		{ qsl("first_name_native"), qsl("first_name") },
+		{ "first_name_native"_q, "first_name"_q },
-		{ qsl("last_name_native"), qsl("last_name") },
+		{ "last_name_native"_q, "last_name"_q },
-		{ qsl("middle_name_native"), qsl("middle_name") },
+		{ "middle_name_native"_q, "middle_name"_q },
 	};
 	return result;
 }

Telegram/SourceFiles/platform/linux/launcher_linux.cpp

@@ -84,8 +84,8 @@ bool Launcher::launchUpdater(UpdaterLaunch action) {
 	const auto binaryPath = (action == UpdaterLaunch::JustRelaunch)
 		? (cExeDir() + cExeName())
 		: (cWriteProtected()
-			? (cWorkingDir() + qsl("tupdates/temp/Updater"))
+			? (cWorkingDir() + u"tupdates/temp/Updater"_q)
-			: (cExeDir() + qsl("Updater")));
+			: (cExeDir() + u"Updater"_q));
 
 	auto argumentsList = Arguments();
 	if (action == UpdaterLaunch::PerformUpdate && cWriteProtected()) {
@@ -102,7 +102,7 @@ bool Launcher::launchUpdater(UpdaterLaunch action) {
 	if (cStartInTray()) {
 		argumentsList.push("-startintray");
 	}
-	if (cDataFile() != qsl("data")) {
+	if (cDataFile() != u"data"_q) {
 		argumentsList.push("-key");
 		argumentsList.push(QFile::encodeName(cDataFile()));
 	}

Telegram/SourceFiles/platform/linux/linux_desktop_environment.cpp

@@ -105,11 +105,11 @@ std::vector<Type> ComputeAndLog() {
 	const auto names = ranges::accumulate(
 		result | ranges::views::transform([](auto type) {
 			switch (type) {
-			case Type::Gnome: return qsl("Gnome, ");
+			case Type::Gnome: return u"Gnome, "_q;
-			case Type::Cinnamon: return qsl("Cinnamon, ");
+			case Type::Cinnamon: return u"Cinnamon, "_q;
-			case Type::KDE: return qsl("KDE, ");
+			case Type::KDE: return u"KDE, "_q;
-			case Type::Unity: return qsl("Unity, ");
+			case Type::Unity: return u"Unity, "_q;
-			case Type::MATE: return qsl("MATE, ");
+			case Type::MATE: return u"MATE, "_q;
 			}
 			Unexpected("Type in Platform::DesktopEnvironment::ComputeAndLog");
 		}),

Telegram/SourceFiles/platform/linux/main_window_linux.cpp

@@ -324,7 +324,7 @@ void MainWindow::createGlobalMenu() {
 		});
 
 	auto quit = file->addAction(
-		tr::lng_mac_menu_quit_telegram(tr::now, lt_telegram, qsl("Telegram")),
+		tr::lng_mac_menu_quit_telegram(tr::now, lt_telegram, u"Telegram"_q),
 		this,
 		[=] { quitFromTray(); },
 		QKeySequence::Quit);
@@ -485,7 +485,7 @@ void MainWindow::createGlobalMenu() {
 		tr::lng_mac_menu_about_telegram(
 			tr::now,
 			lt_telegram,
-			qsl("Telegram")),
+			u"Telegram"_q),
 		[=] {
 			ensureWindowShown();
 			controller().show(Box<AboutBox>());

Telegram/SourceFiles/platform/linux/notifications_manager_linux.cpp

@@ -387,7 +387,7 @@ bool NotificationData::init(
 		_notification->set_body(
 			subtitle.isEmpty()
 				? msg.toStdString()
-				: qsl("%1\n%2").arg(subtitle, msg).toStdString());
+				: u("%1\n%2"_q.arg(subtitle, msg).toStdString());
 
 		_notification->set_icon(
 			Gio::ThemedIcon::create(base::IconName().toStdString()));
@@ -500,16 +500,16 @@ bool NotificationData::init(
 	_title = title.toStdString();
 	_imageKey = GetImageKey(CurrentServerInformationValue().specVersion);
 
-	if (capabilities.contains(qsl("body-markup"))) {
+	if (capabilities.contains(u"body-markup"_q)) {
 		_body = subtitle.isEmpty()
 			? msg.toHtmlEscaped().toStdString()
-			: qsl("<b>%1</b>\n%2").arg(
+			: u"<b>%1</b>\n%2"_q.arg(
 				subtitle.toHtmlEscaped(),
 				msg.toHtmlEscaped()).toStdString();
 	} else {
 		_body = subtitle.isEmpty()
 			? msg.toStdString()
-			: qsl("%1\n%2").arg(subtitle, msg).toStdString();
+			: u"%1\n%2"_q.arg(subtitle, msg).toStdString();
 	}
 
 	if (capabilities.contains("actions")) {
@@ -812,16 +812,16 @@ bool ByDefault() {
 	// with custom notifications
 	static const auto NeededCapabilities = {
 		// To show message content
-		qsl("body"),
+		u"body"_q,
 		// To make the sender name bold
-		qsl("body-markup"),
+		u"body-markup"_q,
 		// To have buttons on notifications
-		qsl("actions"),
+		u"actions"_q,
 		// To have quick reply
-		qsl("inline-reply"),
+		u"inline-reply"_q,
 		// To not to play sound with Don't Disturb activated
 		// (no, using sound capability is not a way)
-		qsl("inhibitions"),
+		u"inhibitions"_q,
 	};
 
 	return ranges::all_of(NeededCapabilities, [&](const auto &capability) {
@@ -962,7 +962,7 @@ Manager::Private::Private(not_null<Manager*> manager)
 			.arg(capabilities.join(", ")));
 	}
 
-	if (capabilities.contains(qsl("inhibitions"))) {
+	if (capabilities.contains(u"inhibitions"_q)) {
 		Noexcept([&] {
 			_dbusConnection = Gio::DBus::Connection::get_sync(
 				Gio::DBus::BusType::SESSION);

Telegram/SourceFiles/platform/linux/specific_linux.cpp

@@ -464,7 +464,7 @@ bool GenerateDesktopFile(
 					QStringList exec;
 					exec.append(cExeDir() + cExeName());
 					if (Core::Sandbox::Instance().customWorkingDir()) {
-						exec.append(qsl("-workdir"));
+						exec.append(u"-workdir"_q);
 						exec.append(cWorkingDir());
 					}
 					exec.append(args);
@@ -485,7 +485,7 @@ bool GenerateDesktopFile(
 					if (!exec.isEmpty()) {
 						exec[0] = cExeDir() + cExeName();
 						if (Core::Sandbox::Instance().customWorkingDir()) {
-							exec.insert(1, qsl("-workdir"));
+							exec.insert(1, u"-workdir"_q);
 							exec.insert(2, cWorkingDir());
 						}
 						target->set_string(
@@ -509,10 +509,10 @@ bool GenerateDesktopFile(
 
 	if (!Core::UpdaterDisabled()) {
 		DEBUG_LOG(("App Info: removing old .desktop files"));
-		QFile::remove(qsl("%1telegram.desktop").arg(targetPath));
+		QFile::remove(u"%1telegram.desktop"_q.arg(targetPath));
-		QFile::remove(qsl("%1telegramdesktop.desktop").arg(targetPath));
+		QFile::remove(u"%1telegramdesktop.desktop"_q.arg(targetPath));
 
-		const auto appimagePath = qsl("file://%1%2").arg(
+		const auto appimagePath = u"file://%1%2"_q.arg(
 			cExeDir(),
 			cExeName()).toUtf8();
 
@@ -522,7 +522,7 @@ bool GenerateDesktopFile(
 			appimagePath.size(),
 			md5Hash);
 
-		QFile::remove(qsl("%1appimagekit_%2-%3.desktop").arg(
+		QFile::remove(u"%1appimagekit_%2-%3.desktop"_q.arg(
 			targetPath,
 			md5Hash,
 			AppName.utf16().replace(' ', '_')));
@@ -536,7 +536,7 @@ bool GenerateDesktopFile(
 			hashMd5Hex(exePath.constData(), exePath.size(), md5Hash);
 		}
 
-		QFile::remove(qsl("%1org.telegram.desktop.%2.desktop").arg(
+		QFile::remove(u"%1org.telegram.desktop.%2.desktop"_q.arg(
 			targetPath,
 			md5Hash));
 	}
@@ -622,10 +622,10 @@ void AutostartToggle(bool enabled, Fn<void(bool)> done) {
 	} else {
 		const auto autostart = QStandardPaths::writableLocation(
 			QStandardPaths::GenericConfigLocation)
-			+ qsl("/autostart/");
+			+ u"/autostart/"_q;
 
 		if (enabled) {
-			GenerateDesktopFile(autostart, { qsl("-autostart") }, silent);
+			GenerateDesktopFile(autostart, { u"-autostart"_q }, silent);
 		} else {
 			QFile::remove(autostart + QGuiApplication::desktopFileName());
 		}
@@ -668,8 +668,8 @@ QString psAppDataPath() {
 	// If we find data there, we should still use it.
 	auto home = QDir::homePath();
 	if (!home.isEmpty()) {
-		auto oldPath = home + qsl("/.TelegramDesktop/");
+		auto oldPath = home + u"/.TelegramDesktop/"_q;
-		auto oldSettingsBase = oldPath + qsl("tdata/settings");
+		auto oldSettingsBase = oldPath + u"tdata/settings"_q;
 		if (QFile::exists(oldSettingsBase + '0')
 			|| QFile::exists(oldSettingsBase + '1')
 			|| QFile::exists(oldSettingsBase + 's')) {
@@ -710,14 +710,14 @@ void start() {
 
 	QGuiApplication::setDesktopFileName([&] {
 		if (KSandbox::isFlatpak()) {
-			return qEnvironmentVariable("FLATPAK_ID") + qsl(".desktop");
+			return qEnvironmentVariable("FLATPAK_ID") + u".desktop"_q;
 		}
 
 		if (KSandbox::isSnap()) {
 			return qEnvironmentVariable("SNAP_INSTANCE_NAME")
 				+ '_'
 				+ cExeName()
-				+ qsl(".desktop");
+				+ u".desktop"_q;
 		}
 
 		if (!Core::UpdaterDisabled()) {
@@ -732,10 +732,10 @@ void start() {
 					md5Hash.data());
 			}
 
-			return qsl("org.telegram.desktop._%1.desktop").arg(md5Hash);
+			return u"org.telegram.desktop._%1.desktop"_q.arg(md5Hash);
 		}
 
-		return qsl("org.telegram.desktop.desktop");
+		return u"org.telegram.desktop.desktop"_q;
 	}());
 
 	LOG(("Launcher filename: %1").arg(QGuiApplication::desktopFileName()));
@@ -768,11 +768,11 @@ void start() {
 #endif // DESKTOP_APP_USE_PACKAGED_FONTS
 #endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
 
-	Webview::WebKit2Gtk::SetSocketPath(qsl("%1/%2-%3-webview-%4").arg(
+	Webview::WebKit2Gtk::SetSocketPath(u"%1/%2-%3-webview-%4"_q.arg(
 		QDir::tempPath(),
 		h,
 		cGUIDStr(),
-		qsl("%1")).toStdString());
+		u"%1"_q).toStdString());
 }
 
 void finish() {
@@ -795,11 +795,11 @@ void InstallLauncher(bool force) {
 	GenerateDesktopFile(applicationsPath);
 
 	const auto icons = QStandardPaths::writableLocation(
-		QStandardPaths::GenericDataLocation) + qsl("/icons/");
+		QStandardPaths::GenericDataLocation) + u"/icons/"_q;
 
 	if (!QDir(icons).exists()) QDir().mkpath(icons);
 
-	const auto icon = icons + base::IconName() + qsl(".png");
+	const auto icon = icons + base::IconName() + u".png"_q;
 	auto iconExists = QFile::exists(icon);
 	if (Local::oldSettingsVersion() < 2008012 && iconExists) {
 		// Icon was changed.
@@ -808,7 +808,7 @@ void InstallLauncher(bool force) {
 		}
 	}
 	if (!iconExists) {
-		if (QFile::copy(qsl(":/gui/art/logo_256.png"), icon)) {
+		if (QFile::copy(u":/gui/art/logo_256.png"_q, icon)) {
 			DEBUG_LOG(("App Info: Icon copied to '%1'").arg(icon));
 		}
 	}
@@ -876,8 +876,8 @@ void NewVersionLaunched(int oldVersion) {
 		&& oldVersion <= 4000002
 		&& qEnvironmentVariableIsSet("WAYLAND_DISPLAY")
 		&& DesktopEnvironment::IsGnome()
-		&& !QFile::exists(cWorkingDir() + qsl("tdata/nowayland"))) {
+		&& !QFile::exists(cWorkingDir() + u"tdata/nowayland"_q)) {
-		QFile f(cWorkingDir() + qsl("tdata/nowayland"));
+		QFile f(cWorkingDir() + u"tdata/nowayland"_q);
 		if (f.open(QIODevice::WriteOnly)) {
 			f.write("1");
 			f.close();

Telegram/SourceFiles/platform/mac/file_utilities_mac.mm

@@ -383,8 +383,8 @@ namespace File {
 
 QString UrlToLocal(const QUrl &url) {
 	auto result = url.toLocalFile();
-	if (result.startsWith(qsl("/.file/id="))) {
+	if (result.startsWith(u"/.file/id="_q)) {
-		NSString *nsurl = [[[NSURL URLWithString: [NSString stringWithUTF8String: (qsl("file://") + result).toUtf8().constData()]] filePathURL] path];
+		NSString *nsurl = [[[NSURL URLWithString: [NSString stringWithUTF8String: (u"file://"_q + result).toUtf8().constData()]] filePathURL] path];
 		if (!nsurl) return QString();
 
 		return NS2QString(nsurl);

Telegram/SourceFiles/platform/mac/launcher_mac.mm

@@ -64,7 +64,7 @@ bool Launcher::launchUpdater(UpdaterLaunch action) {
 		if (Logs::DebugEnabled()) [args addObject:@"-debug"];
 		if (cStartInTray()) [args addObject:@"-startintray"];
 		if (cUseFreeType()) [args addObject:@"-freetype"];
-		if (cDataFile() != qsl("data")) {
+		if (cDataFile() != u"data"_q) {
 			[args addObject:@"-key"];
 			[args addObject:Q2NSString(cDataFile())];
 		}

Telegram/SourceFiles/platform/mac/main_window_mac.mm

@@ -291,7 +291,7 @@ void MainWindow::createGlobalMenu() {
 		}
 	};
 
-	auto main = psMainMenu.addMenu(qsl("Telegram"));
+	auto main = psMainMenu.addMenu(u"Telegram"_q);
 	{
 		auto callback = [=] {
 			ensureWindowShown();
@@ -301,7 +301,7 @@ void MainWindow::createGlobalMenu() {
 			tr::lng_mac_menu_about_telegram(
 				tr::now,
 				lt_telegram,
-				qsl("Telegram")),
+				u"Telegram"_q),
 			std::move(callback))
 		->setMenuRole(QAction::AboutQtRole);
 	}

Telegram/SourceFiles/platform/mac/specific_mac.mm

@@ -79,7 +79,7 @@ void finish() {
 
 QString SingleInstanceLocalServerName(const QString &hash) {
 #ifndef OS_MAC_STORE
-	return qsl("/tmp/") + hash + '-' + cGUIDStr();
+	return u"/tmp/"_q + hash + '-' + cGUIDStr();
 #else // OS_MAC_STORE
 	return objc_documentsPath() + hash.left(4);
 #endif // OS_MAC_STORE
@@ -208,7 +208,7 @@ QByteArray psDownloadPathBookmark(const QString &path) {
 }
 
 bool psLaunchMaps(const Data::LocationPoint &point) {
-	return QDesktopServices::openUrl(qsl("https://maps.apple.com/?q=Point&z=16&ll=%1,%2").arg(point.latAsString()).arg(point.lonAsString()));
+	return QDesktopServices::openUrl(u"https://maps.apple.com/?q=Point&z=16&ll=%1,%2"_q.arg(point.latAsString()).arg(point.lonAsString()));
 }
 
 QString strNotificationAboutThemeChange() {

Telegram/SourceFiles/platform/mac/window_title_mac.mm

@@ -79,7 +79,7 @@ void PreviewWindowTitle(Painter &p, const style::palette &palette, QRect body, i
 	p.setPen(st::titleFgActive[palette]);
 	p.setFont(font);
 
-	p.drawText(titleRect, qsl("Telegram"), style::al_center);
+	p.drawText(titleRect, u"Telegram"_q, style::al_center);
 
 	auto isGraphite = ([NSColor currentControlTint] == NSGraphiteControlTint);
 	auto buttonSkip = 8;

Telegram/SourceFiles/platform/win/launcher_win.cpp

@@ -46,50 +46,50 @@ bool Launcher::launchUpdater(UpdaterLaunch action) {
 	const auto operation = (action == UpdaterLaunch::JustRelaunch)
 		? QString()
 		: (cWriteProtected()
-			? qsl("runas")
+			? u"runas"_q
 			: QString());
 	const auto binaryPath = (action == UpdaterLaunch::JustRelaunch)
 		? (cExeDir() + cExeName())
 		: (cWriteProtected()
-			? (cWorkingDir() + qsl("tupdates/temp/Updater.exe"))
+			? (cWorkingDir() + u"tupdates/temp/Updater.exe"_q)
-			: (cExeDir() + qsl("Updater.exe")));
+			: (cExeDir() + u"Updater.exe"_q));
 
 	auto argumentsList = QStringList();
 	const auto pushArgument = [&](const QString &argument) {
 		argumentsList.push_back(argument.trimmed());
 	};
 	if (cLaunchMode() == LaunchModeAutoStart) {
-		pushArgument(qsl("-autostart"));
+		pushArgument(u"-autostart"_q);
 	}
 	if (Logs::DebugEnabled()) {
-		pushArgument(qsl("-debug"));
+		pushArgument(u"-debug"_q);
 	}
 	if (cStartInTray()) {
-		pushArgument(qsl("-startintray"));
+		pushArgument(u"-startintray"_q);
 	}
 	if (cUseFreeType()) {
-		pushArgument(qsl("-freetype"));
+		pushArgument(u"-freetype"_q);
 	}
 	if (customWorkingDir()) {
-		pushArgument(qsl("-workdir"));
+		pushArgument(u"-workdir"_q);
 		pushArgument('"' + cWorkingDir() + '"');
 	}
-	if (cDataFile() != qsl("data")) {
+	if (cDataFile() != u"data"_q) {
-		pushArgument(qsl("-key"));
+		pushArgument(u"-key"_q);
 		pushArgument('"' + cDataFile() + '"');
 	}
 
 	if (action == UpdaterLaunch::JustRelaunch) {
-		pushArgument(qsl("-noupdate"));
+		pushArgument(u"-noupdate"_q);
 		if (cRestartingToSettings()) {
-			pushArgument(qsl("-tosettings"));
+			pushArgument(u"-tosettings"_q);
 		}
 	} else {
-		pushArgument(qsl("-update"));
+		pushArgument(u"-update"_q);
-		pushArgument(qsl("-exename"));
+		pushArgument(u"-exename"_q);
 		pushArgument('"' + cExeName() + '"');
 		if (cWriteProtected()) {
-			pushArgument(qsl("-writeprotected"));
+			pushArgument(u"-writeprotected"_q);
 			pushArgument('"' + cExeDir() + '"');
 		}
 	}

Telegram/SourceFiles/platform/win/specific_win.cpp

@@ -88,7 +88,7 @@ BOOL CALLBACK ActivateProcessByPid(HWND hWnd, LPARAM lParam) {
 		WCHAR nameBuf[nameBufSize];
 		int32 len = GetWindowText(hWnd, nameBuf, nameBufSize);
 		if (len && len < nameBufSize) {
-			if (QRegularExpression(qsl("^Telegram(\\s*\\(\\d+\\))?$")).match(QString::fromStdWString(nameBuf)).hasMatch()) {
+			if (QRegularExpression(u"^Telegram(\\s*\\(\\d+\\))?$"_q).match(QString::fromStdWString(nameBuf)).hasMatch()) {
 				BOOL res = ::SetForegroundWindow(hWnd);
 				::SetFocus(hWnd);
 				return FALSE;
@@ -149,7 +149,7 @@ void ManageAppLink(bool create, bool silent, int path_csidl, const wchar_t *args
 	WCHAR startupFolder[MAX_PATH];
 	HRESULT hr = SHGetFolderPath(0, path_csidl, 0, SHGFP_TYPE_CURRENT, startupFolder);
 	if (SUCCEEDED(hr)) {
-		QString lnk = QString::fromWCharArray(startupFolder) + '\\' + AppFile.utf16() + qsl(".lnk");
+		QString lnk = QString::fromWCharArray(startupFolder) + '\\' + AppFile.utf16() + u".lnk"_q;
 		if (create) {
 			const auto shellLink = base::WinRT::TryCreateInstance<IShellLink>(
 				CLSID_ShellLink,
@@ -203,7 +203,7 @@ QString psAppDataPath() {
 	if (GetEnvironmentVariable(L"APPDATA", wstrPath, maxFileLen)) {
 		QDir appData(QString::fromStdWString(std::wstring(wstrPath)));
 #ifdef OS_WIN_STORE
-		return appData.absolutePath() + qsl("/Telegram Desktop UWP/");
+		return appData.absolutePath() + u"/Telegram Desktop UWP/"_q;
 #else // OS_WIN_STORE
 		return appData.absolutePath() + '/' + AppName.utf16() + '/';
 #endif // OS_WIN_STORE
@@ -341,7 +341,7 @@ void SetApplicationIcon(const QIcon &icon) {
 }
 
 QString SingleInstanceLocalServerName(const QString &hash) {
-	return qsl("Global\\") + hash + '-' + cGUIDStr();
+	return u"Global\\"_q + hash + '-' + cGUIDStr();
 }
 
 std::optional<bool> IsDarkMode() {
@@ -485,12 +485,12 @@ namespace {
 			if (status == ERROR_FILE_NOT_FOUND) {
 				status = RegCreateKeyEx(HKEY_CURRENT_USER, key, 0, 0, REG_OPTION_NON_VOLATILE, KEY_QUERY_VALUE | KEY_WRITE, 0, rkey, 0);
 				if (status != ERROR_SUCCESS) {
-					QString msg = qsl("App Error: could not create '%1' registry key, error %2").arg(QString::fromStdWString(key)).arg(qsl("%1: %2"));
+					QString msg = u"App Error: could not create '%1' registry key, error %2"_q.arg(QString::fromStdWString(key)).arg(u"%1: %2"_q);
 					_psLogError(msg.toUtf8().constData(), status);
 					return false;
 				}
 			} else {
-				QString msg = qsl("App Error: could not open '%1' registry key, error %2").arg(QString::fromStdWString(key)).arg(qsl("%1: %2"));
+				QString msg = u"App Error: could not open '%1' registry key, error %2"_q.arg(QString::fromStdWString(key)).arg(u"%1: %2"_q);
 				_psLogError(msg.toUtf8().constData(), status);
 				return false;
 			}
@@ -504,10 +504,10 @@ namespace {
 		WCHAR defaultStr[bufSize] = { 0 };
 		if (RegQueryValueEx(rkey, value, 0, &defaultType, (BYTE*)defaultStr, &defaultSize) != ERROR_SUCCESS || defaultType != REG_SZ || defaultSize != (v.size() + 1) * 2 || QString::fromStdWString(defaultStr) != v) {
 			WCHAR tmp[bufSize] = { 0 };
-			if (!v.isEmpty()) StringCbPrintf(tmp, bufSize, v.replace(QChar('%'), qsl("%%")).toStdWString().c_str());
+			if (!v.isEmpty()) StringCbPrintf(tmp, bufSize, v.replace(QChar('%'), u"%%"_q).toStdWString().c_str());
 			LSTATUS status = RegSetValueEx(rkey, value, 0, REG_SZ, (BYTE*)tmp, (wcslen(tmp) + 1) * sizeof(WCHAR));
 			if (status != ERROR_SUCCESS) {
-				QString msg = qsl("App Error: could not set %1, error %2").arg(value ? ('\'' + QString::fromStdWString(value) + '\'') : qsl("(Default)")).arg("%1: %2");
+				QString msg = u"App Error: could not set %1, error %2"_q.arg(value ? ('\'' + QString::fromStdWString(value) + '\'') : u"(Default)"_q).arg("%1: %2");
 				_psLogError(msg.toUtf8().constData(), status);
 				return false;
 			}

Telegram/SourceFiles/platform/win/windows_app_user_model_id.cpp

@@ -188,7 +188,7 @@ QString systemShortcutPath() {
 void cleanupShortcut() {
 	static const int maxFileLen = MAX_PATH * 10;
 
-	QString path = systemShortcutPath() + qsl("Telegram.lnk");
+	QString path = systemShortcutPath() + u"Telegram.lnk"_q;
 	std::wstring p = QDir::toNativeSeparators(path).toStdWString();
 
 	DWORD attributes = GetFileAttributes(p.c_str());

Telegram/SourceFiles/settings.cpp

@@ -47,8 +47,8 @@ QByteArray gLocalSalt;
 int gScreenScale = style::kScaleAuto;
 int gConfigScale = style::kScaleAuto;
 
-QString gDateFormat = qsl("dd.MM.yy");
+QString gDateFormat = u"dd.MM.yy"_q;
-QString gTimeFormat = qsl("hh:mm");
+QString gTimeFormat = u"hh:mm"_q;
 
 RecentStickerPreload gRecentStickersPreload;
 RecentStickerPack gRecentStickers;

Telegram/SourceFiles/settings/settings_chat.cpp

@@ -636,9 +636,9 @@ void ChooseFromFile(
 		not_null<Window::SessionController*> controller,
 		not_null<QWidget*> parent) {
 	auto filters = QStringList(
-		qsl("Theme files (*.tdesktop-theme *.tdesktop-palette *")
+		u"Theme files (*.tdesktop-theme *.tdesktop-palette *"_q
-		+ Ui::ImageExtensions().join(qsl(" *"))
+		+ Ui::ImageExtensions().join(u" *"_q)
-		+ qsl(")"));
+		+ u")"_q);
 	filters.push_back(FileDialog::AllFilesFilter());
 	const auto callback = crl::guard(controller, [=](
 			const FileDialog::OpenResult &result) {
@@ -674,7 +674,7 @@ void ChooseFromFile(
 	FileDialog::GetOpenPath(
 		parent.get(),
 		tr::lng_choose_image(tr::now),
-		filters.join(qsl(";;")),
+		filters.join(u";;"_q),
 		crl::guard(parent, callback));
 }
 
@@ -1056,7 +1056,7 @@ void SetupDataStorage(
 	) | rpl::map([](const QString &text) {
 		if (text.isEmpty()) {
 			return tr::lng_download_path_default(tr::now);
-		} else if (text == qsl("tmp")) {
+		} else if (text == u"tmp"_q) {
 			return tr::lng_download_path_temp(tr::now);
 		}
 		return QDir::toNativeSeparators(text);
@@ -1630,7 +1630,7 @@ void SetupSupport(
 		not_null<Ui::VerticalLayout*> container) {
 	AddSkip(container);
 
-	AddSubsectionTitle(container, rpl::single(qsl("Support settings")));
+	AddSubsectionTitle(container, rpl::single(u"Support settings"_q));
 
 	AddSkip(container, st::settingsSendTypeSkip);
 
@@ -1677,7 +1677,7 @@ void SetupSupport(
 
 	AddSkip(inner, st::settingsCheckboxesSkip);
 
-	AddSubsectionTitle(inner, rpl::single(qsl("Load chats for a period")));
+	AddSubsectionTitle(inner, rpl::single(u"Load chats for a period"_q));
 
 	SetupSupportChatsLimitSlice(controller, inner);
 

Telegram/SourceFiles/settings/settings_codes.cpp

@@ -75,61 +75,62 @@ using SessionController = Window::SessionController;
 
 auto GenerateCodes() {
 	auto codes = std::map<QString, Fn<void(SessionController*)>>();
-	codes.emplace(qsl("debugmode"), [](SessionController *window) {
+	codes.emplace(u"debugmode"_q, [](SessionController *window) {
 		QString text = Logs::DebugEnabled()
-			? qsl("Do you want to disable DEBUG logs?")
+			? u"Do you want to disable DEBUG logs?"_q
-			: qsl("Do you want to enable DEBUG logs?\n\n"
+			: u"Do you want to enable DEBUG logs?\n\nAll network events will be logged."_q;
-				"All network events will be logged.");
 		Ui::show(Ui::MakeConfirmBox({ text, [] {
 			Core::App().switchDebugMode();
 		} }));
 	});
-	codes.emplace(qsl("viewlogs"), [](SessionController *window) {
+	codes.emplace(u"viewlogs"_q, [](SessionController *window) {
 		File::ShowInFolder(cWorkingDir() + "log.txt");
 	});
 	if (!Core::UpdaterDisabled()) {
-		codes.emplace(qsl("testupdate"), [](SessionController *window) {
+		codes.emplace(u"testupdate"_q, [](SessionController *window) {
 			Core::UpdateChecker().test();
 		});
 	}
-	codes.emplace(qsl("loadlang"), [](SessionController *window) {
+	codes.emplace(u"loadlang"_q, [](SessionController *window) {
-		Lang::CurrentCloudManager().switchToLanguage({ qsl("#custom") });
+		Lang::CurrentCloudManager().switchToLanguage({ u"#custom"_q });
 	});
-	codes.emplace(qsl("crashplease"), [](SessionController *window) {
+	codes.emplace(u"crashplease"_q, [](SessionController *window) {
 		Unexpected("Crashed in Settings!");
 	});
-	codes.emplace(qsl("moderate"), [](SessionController *window) {
+	codes.emplace(u"moderate"_q, [](SessionController *window) {
-		auto text = Core::App().settings().moderateModeEnabled() ? qsl("Disable moderate mode?") : qsl("Enable moderate mode?");
+		auto text = Core::App().settings().moderateModeEnabled() ? u"Disable moderate mode?"_q : u"Enable moderate mode?"_q;
 		Ui::show(Ui::MakeConfirmBox({ text, [=] {
 			Core::App().settings().setModerateModeEnabled(!Core::App().settings().moderateModeEnabled());
 			Core::App().saveSettingsDelayed();
 			Ui::hideLayer();
 		} }));
 	});
-	codes.emplace(qsl("getdifference"), [](SessionController *window) {
+	codes.emplace(u"getdifference"_q, [](SessionController *window) {
 		if (window) {
 			window->session().updates().getDifference();
 		}
 	});
-	codes.emplace(qsl("loadcolors"), [](SessionController *window) {
+	codes.emplace(u"loadcolors"_q, [](SessionController *window) {
 		FileDialog::GetOpenPath(Core::App().getFileDialogParent(), "Open palette file", "Palette (*.tdesktop-palette)", [](const FileDialog::OpenResult &result) {
 			if (!result.paths.isEmpty()) {
 				Window::Theme::Apply(result.paths.front());
 			}
 		});
 	});
-	codes.emplace(qsl("videoplayer"), [](SessionController *window) {
+	codes.emplace(u"videoplayer"_q, [](SessionController *window) {
 		if (!window) {
 			return;
 		}
-		auto text = cUseExternalVideoPlayer() ? qsl("Use internal video player?") : qsl("Use external video player?");
+		auto text = cUseExternalVideoPlayer()
+			? u"Use internal video player?"_q
+			: u"Use external video player?"_q;
 		Ui::show(Ui::MakeConfirmBox({ text, [=] {
 			cSetUseExternalVideoPlayer(!cUseExternalVideoPlayer());
 			window->session().saveSettingsDelayed();
 			Ui::hideLayer();
 		} }));
 	});
-	codes.emplace(qsl("endpoints"), [](SessionController *window) {
+	codes.emplace(u"endpoints"_q, [](SessionController *window) {
 		if (!Core::App().domain().started()) {
 			return;
 		}
@@ -154,7 +155,7 @@ auto GenerateCodes() {
 			}
 		});
 	});
-	codes.emplace(qsl("testmode"), [](SessionController *window) {
+	codes.emplace(u"testmode"_q, [](SessionController *window) {
 		auto &domain = Core::App().domain();
 		if (domain.started()
 			&& (domain.accounts().size() == 1)
@@ -170,29 +171,29 @@ auto GenerateCodes() {
 				: "Switched to the production environment.");
 		}
 	});
-	codes.emplace(qsl("folders"), [](SessionController *window) {
+	codes.emplace(u"folders"_q, [](SessionController *window) {
 		if (window) {
 			window->showSettings(Settings::Folders::Id());
 		}
 	});
-	codes.emplace(qsl("registertg"), [](SessionController *window) {
+	codes.emplace(u"registertg"_q, [](SessionController *window) {
 		Core::Application::RegisterUrlScheme();
 		Ui::Toast::Show("Forced custom scheme register.");
 	});
-	codes.emplace(qsl("installlauncher"), [](SessionController *window) {
+	codes.emplace(u"installlauncher"_q, [](SessionController *window) {
 		Platform::InstallLauncher(true);
 		Ui::Toast::Show("Forced launcher installation.");
 	});
 
 #if defined Q_OS_WIN || defined Q_OS_MAC
-	codes.emplace(qsl("freetype"), [](SessionController *window) {
+	codes.emplace(u"freetype"_q, [](SessionController *window) {
 		auto text = cUseFreeType()
 #ifdef Q_OS_WIN
-			? qsl("Switch font engine to GDI?")
+			? u"Switch font engine to GDI?"_q
 #else // Q_OS_WIN
-			? qsl("Switch font engine to Cocoa?")
+			? u"Switch font engine to Cocoa?"_q
 #endif // !Q_OS_WIN
-			: qsl("Switch font engine to FreeType?");
+			: u"Switch font engine to FreeType?"_q;
 
 		Ui::show(Ui::MakeConfirmBox({ text, [] {
 			Core::App().switchFreeType();
@@ -200,14 +201,14 @@ auto GenerateCodes() {
 	});
 #endif // Q_OS_WIN || Q_OS_MAC
 
-	auto audioFilters = qsl("Audio files (*.wav *.mp3);;") + FileDialog::AllFilesFilter();
+	auto audioFilters = u"Audio files (*.wav *.mp3);;"_q + FileDialog::AllFilesFilter();
 	auto audioKeys = {
-		qsl("msg_incoming"),
+		u"msg_incoming"_q,
-		qsl("call_incoming"),
+		u"call_incoming"_q,
-		qsl("call_outgoing"),
+		u"call_outgoing"_q,
-		qsl("call_busy"),
+		u"call_busy"_q,
-		qsl("call_connect"),
+		u"call_connect"_q,
-		qsl("call_end"),
+		u"call_end"_q,
 	};
 	for (auto &key : audioKeys) {
 		codes.emplace(key, [=](SessionController *window) {
@@ -228,12 +229,12 @@ auto GenerateCodes() {
 			});
 		});
 	}
-	codes.emplace(qsl("sounds_reset"), [](SessionController *window) {
+	codes.emplace(u"sounds_reset"_q, [](SessionController *window) {
 		Core::App().settings().clearSoundOverrides();
 		Core::App().saveSettingsDelayed();
 		Ui::show(Ui::MakeInformBox("All sound overrides were reset."));
 	});
-	codes.emplace(qsl("unpacklog"), [](SessionController *window) {
+	codes.emplace(u"unpacklog"_q, [](SessionController *window) {
 		FileDialog::GetOpenPath(Core::App().getFileDialogParent(), "Open crash log file", "Crash dump (*.txt)", [=](const FileDialog::OpenResult &result) {
 			if (result.paths.isEmpty()) {
 				return;
@@ -277,15 +278,15 @@ auto GenerateCodes() {
 			});
 		});
 	});
-	codes.emplace(qsl("testchatcolors"), [](SessionController *window) {
+	codes.emplace(u"testchatcolors"_q, [](SessionController *window) {
 		const auto now = !Data::CloudThemes::TestingColors();
 		Data::CloudThemes::SetTestingColors(now);
 		Ui::Toast::Show(now ? "Testing chat theme colors!" : "Not testing..");
 	});
 
 #ifdef Q_OS_MAC
-	codes.emplace(qsl("customicon"), [](SessionController *window) {
+	codes.emplace(u"customicon"_q, [](SessionController *window) {
-		const auto iconFilters = qsl("Icon files (*.icns *.png);;") + FileDialog::AllFilesFilter();
+		const auto iconFilters = u"Icon files (*.icns *.png);;"_q + FileDialog::AllFilesFilter();
 		const auto change = [](const QString &path) {
 			const auto success = path.isEmpty()
 				? base::ClearCustomAppIcon()

Telegram/SourceFiles/settings/settings_main.cpp

@@ -265,7 +265,7 @@ void SetupLanguageButton(
 	button->addClickHandler([=] {
 		const auto m = button->clickModifiers();
 		if ((m & Qt::ShiftModifier) && (m & Qt::AltModifier)) {
-			Lang::CurrentCloudManager().switchToLanguage({ qsl("#custom") });
+			Lang::CurrentCloudManager().switchToLanguage({ u"#custom"_q });
 		} else {
 			*guard = LanguageBox::Show();
 		}

Telegram/SourceFiles/settings/settings_notifications.cpp

@@ -309,7 +309,7 @@ void NotificationsCount::prepareNotificationSampleLarge() {
 		p.setPen(st::dialogsNameFg);
 		p.setFont(st::msgNameFont);
 
-		auto notifyTitle = st::msgNameFont->elided(qsl("Telegram Desktop"), rectForName.width());
+		auto notifyTitle = st::msgNameFont->elided(u"Telegram Desktop"_q, rectForName.width());
 		p.drawText(rectForName.left(), rectForName.top() + st::msgNameFont->ascent, notifyTitle);
 
 		st::notifyClose.icon.paint(p, w - st::notifyClosePos.x() - st::notifyClose.width + st::notifyClose.iconPosition.x(), st::notifyClosePos.y() + st::notifyClose.iconPosition.y(), w);

Telegram/SourceFiles/storage/file_upload.cpp

@@ -502,7 +502,7 @@ void Uploader::sendNext() {
 						}
 						const auto thumbFilename = uploadingData.file
 							? uploadingData.file->thumbname
-							: (qsl("thumb.") + uploadingData.media.thumbExt);
+							: (u"thumb."_q + uploadingData.media.thumbExt);
 						const auto thumbMd5 = uploadingData.file
 							? uploadingData.file->thumbmd5
 							: uploadingData.media.jpeg_md5;

Telegram/SourceFiles/storage/localimageloader.cpp

@@ -113,7 +113,7 @@ struct PreparedFileThumbnail {
 		const QString &filemime,
 		int64 filesize,
 		bool isSticker) {
-	prepared.name = isSticker ? qsl("thumb.webp") : qsl("thumb.jpg");
+	prepared.name = isSticker ? u"thumb.webp"_q : u"thumb.jpg"_q;
 	if (FileThumbnailUploadRequired(filemime, filesize)) {
 		const auto format = isSticker ? "WEBP" : "JPG";
 		auto buffer = QBuffer(&prepared.bytes);
@@ -784,7 +784,7 @@ void FileLoadTask::process(Args &&args) {
 	} else if (!_content.isEmpty()) {
 		filesize = _content.size();
 		if (isVoice) {
-			filename = filedialogDefaultName(qsl("audio"), qsl(".ogg"), QString(), true);
+			filename = filedialogDefaultName(u"audio"_q, u".ogg"_q, QString(), true);
 			filemime = "audio/ogg";
 		} else {
 			if (_information) {
@@ -803,16 +803,16 @@ void FileLoadTask::process(Args &&args) {
 				fullimagebytes = fullimageformat = QByteArray();
 			}
 			if (filemime == "image/jpeg") {
-				filename = filedialogDefaultName(qsl("photo"), qsl(".jpg"), QString(), true);
+				filename = filedialogDefaultName(u"photo"_q, u".jpg"_q, QString(), true);
 			} else if (filemime == "image/png") {
-				filename = filedialogDefaultName(qsl("image"), qsl(".png"), QString(), true);
+				filename = filedialogDefaultName(u"image"_q, u".png"_q, QString(), true);
 			} else {
 				QString ext;
 				QStringList patterns = mimeType.globPatterns();
 				if (!patterns.isEmpty()) {
 					ext = patterns.front().replace('*', QString());
 				}
-				filename = filedialogDefaultName(qsl("file"), ext, QString(), true);
+				filename = filedialogDefaultName(u"file"_q, ext, QString(), true);
 			}
 		}
 	} else {
@@ -829,14 +829,14 @@ void FileLoadTask::process(Args &&args) {
 				if (ValidateThumbDimensions(fullimage.width(), fullimage.height())) {
 					filesize = -1; // Fill later.
 					filemime = Core::MimeTypeForName("image/jpeg").name();
-					filename = filedialogDefaultName(qsl("image"), qsl(".jpg"), QString(), true);
+					filename = filedialogDefaultName(u"image"_q, u".jpg"_q, QString(), true);
 				} else {
 					_type = SendMediaType::File;
 				}
 			}
 			if (_type == SendMediaType::File) {
 				filemime = Core::MimeTypeForName("image/png").name();
-				filename = filedialogDefaultName(qsl("image"), qsl(".png"), QString(), true);
+				filename = filedialogDefaultName(u"image"_q, u".png"_q, QString(), true);
 				{
 					QBuffer buffer(&_content);
 					fullimage.save(&buffer, "PNG");

Telegram/SourceFiles/storage/localstorage.cpp

@@ -143,7 +143,7 @@ void applyReadContext(ReadSettingsContext &&context) {
 
 bool _readOldSettings(bool remove, ReadSettingsContext &context) {
 	bool result = false;
-	QFile file(cWorkingDir() + qsl("tdata/config"));
+	auto file = QFile(cWorkingDir() + u"tdata/config"_q);
 	if (file.open(QIODevice::ReadOnly)) {
 		LOG(("App Info: reading old config..."));
 		QDataStream stream(&file);
@@ -240,9 +240,9 @@ void _readOldUserSettingsFields(
 bool _readOldUserSettings(bool remove, ReadSettingsContext &context) {
 	bool result = false;
 	// We dropped old test authorizations when migrated to multi auth.
-	//const auto testPrefix = (cTestMode() ? qsl("_test") : QString());
+	//const auto testPrefix = (cTestMode() ? u"_test"_q : QString());
 	const auto testPrefix = QString();
-	QFile file(cWorkingDir() + cDataFile() + testPrefix + qsl("_config"));
+	QFile file(cWorkingDir() + cDataFile() + testPrefix + u"_config"_q);
 	if (file.open(QIODevice::ReadOnly)) {
 		LOG(("App Info: reading old user config..."));
 		qint32 version = 0;
@@ -321,7 +321,7 @@ void _readOldMtpDataFields(
 bool _readOldMtpData(bool remove, ReadSettingsContext &context) {
 	bool result = false;
 	// We dropped old test authorizations when migrated to multi auth.
-	//const auto testPostfix = (cTestMode() ? qsl("_test") : QString());
+	//const auto testPostfix = (cTestMode() ? u"_test"_q : QString());
 	const auto testPostfix = QString();
 	QFile file(cWorkingDir() + cDataFile() + testPostfix);
 	if (file.open(QIODevice::ReadOnly)) {
@@ -355,13 +355,13 @@ void start() {
 
 	_localLoader = new TaskQueue(kFileLoaderQueueStopTimeout);
 
-	_basePath = cWorkingDir() + qsl("tdata/");
+	_basePath = cWorkingDir() + u"tdata/"_q;
 	if (!QDir().exists(_basePath)) QDir().mkpath(_basePath);
 
 	ReadSettingsContext context;
 	FileReadDescriptor settingsData;
 	// We dropped old test authorizations when migrated to multi auth.
-	//const auto name = cTestMode() ? qsl("settings_test") : qsl("settings");
+	//const auto name = cTestMode() ? u"settings_test"_q : u"settings"_q;
 	const auto name = u"settings"_q;
 	if (!ReadFile(settingsData, name, _basePath)) {
 		_readOldSettings(true, context);
@@ -442,7 +442,7 @@ void writeSettings() {
 	if (!QDir().exists(_basePath)) QDir().mkpath(_basePath);
 
 	// We dropped old test authorizations when migrated to multi auth.
-	//const auto name = cTestMode() ? qsl("settings_test") : qsl("settings");
+	//const auto name = cTestMode() ? u"settings_test"_q : u"settings"_q;
 	const auto name = u"settings"_q;
 	FileWriteDescriptor settings(name, _basePath);
 	if (_settingsSalt.isEmpty() || !SettingsKey) {

Telegram/SourceFiles/storage/storage_account.cpp

@@ -97,7 +97,7 @@ auto EmptyMessageDraftSources()
 
 [[nodiscard]] FileKey ComputeDataNameKey(const QString &dataName) {
 	// We dropped old test authorizations when migrated to multi auth.
-	//const auto testAddition = (cTestMode() ? qsl(":/test/") : QString());
+	//const auto testAddition = (cTestMode() ? u":/test/"_q : QString());
 	const auto testAddition = QString();
 	const auto dataNameUtf8 = (dataName + testAddition).toUtf8();
 	FileKey dataNameHash[2] = { 0 };
@@ -106,7 +106,7 @@ auto EmptyMessageDraftSources()
 }
 
 [[nodiscard]] QString BaseGlobalPath() {
-	return cWorkingDir() + qsl("tdata/");
+	return cWorkingDir() + u"tdata/"_q;
 }
 
 [[nodiscard]] QString ComputeDatabasePath(const QString &dataName) {
@@ -118,7 +118,7 @@ auto EmptyMessageDraftSources()
 }
 
 [[nodiscard]] QString LegacyTempDirectory() {
-	return cWorkingDir() + qsl("tdata/tdld/");
+	return cWorkingDir() + u"tdata/tdld/"_q;
 }
 
 } // namespace
@@ -243,7 +243,7 @@ Account::ReadMapResult Account::readMapWith(
 	auto ms = crl::now();
 
 	FileReadDescriptor mapData;
-	if (!ReadFile(mapData, qsl("map"), _basePath)) {
+	if (!ReadFile(mapData, u"map"_q, _basePath)) {
 		return ReadMapResult::Failed;
 	}
 	LOG(("App Info: reading map..."));
@@ -1839,7 +1839,7 @@ void Account::readStickerSets(
 			setTitle = tr::lng_stickers_default_set(tr::now);
 			setFlags |= SetFlag::Official | SetFlag::Special;
 		} else if (setId == Data::Stickers::CustomSetId) {
-			setTitle = qsl("Custom stickers");
+			setTitle = u"Custom stickers"_q;
 			setFlags |= SetFlag::Special;
 		} else if ((setId == Data::Stickers::CloudRecentSetId)
 				|| (setId == Data::Stickers::CloudRecentAttachedSetId)) {
@@ -2199,7 +2199,7 @@ void Account::importOldRecentStickers() {
 			Data::Stickers::CustomSetId,
 			uint64(0), // accessHash
 			uint64(0), // hash
-			qsl("Custom stickers"),
+			u"Custom stickers"_q,
 			QString(),
 			0, // count
 			(SetFlag::Installed | SetFlag::Special),

Telegram/SourceFiles/storage/storage_domain.cpp

@@ -20,7 +20,7 @@ namespace {
 using namespace details;
 
 [[nodiscard]] QString BaseGlobalPath() {
-	return cWorkingDir() + qsl("tdata/");
+	return cWorkingDir() + u"tdata/"_q;
 }
 
 [[nodiscard]] QString ComputeKeyName(const QString &dataName) {

Telegram/SourceFiles/storage/storage_media_prepare.cpp

@@ -132,7 +132,7 @@ bool ValidateEditMediaDragData(
 }
 
 MimeDataState ComputeMimeDataState(const QMimeData *data) {
-	if (!data || data->hasFormat(qsl("application/x-td-forward"))) {
+	if (!data || data->hasFormat(u"application/x-td-forward"_q)) {
 		return MimeDataState::None;
 	}
 

Telegram/SourceFiles/support/support_autocomplete.cpp

@@ -398,7 +398,7 @@ void Autocomplete::setupContent() {
 		object_ptr<Ui::InputField>(
 			this,
 			st::gifsSearchField,
-			rpl::single(qsl("Search for templates"))), // #TODO hard_lang
+			rpl::single(u"Search for templates"_q)), // #TODO hard_lang
 		st::autocompleteSearchPadding);
 	const auto input = inputWrap->entity();
 	const auto scroll = Ui::CreateChild<Ui::ScrollArea>(this);
@@ -510,7 +510,7 @@ ConfirmContactBox::ConfirmContactBox(
 }
 
 void ConfirmContactBox::prepare() {
-	setTitle(rpl::single(qsl("Confirmation"))); // #TODO hard_lang
+	setTitle(rpl::single(u"Confirmation"_q)); // #TODO hard_lang
 
 	auto maxWidth = 0;
 	if (_comment) {

Telegram/SourceFiles/support/support_helper.cpp

@@ -77,7 +77,7 @@ EditInfoBox::EditInfoBox(
 	this,
 	st::supportInfoField,
 	Ui::InputField::Mode::MultiLine,
-	rpl::single(qsl("Support information")), // #TODO hard_lang
+	rpl::single(u"Support information"_q), // #TODO hard_lang
 	text)
 , _submit(std::move(submit)) {
 	_field->setMaxLength(kMaxSupportInfoLength);
@@ -95,7 +95,7 @@ EditInfoBox::EditInfoBox(
 }
 
 void EditInfoBox::prepare() {
-	setTitle(rpl::single(qsl("Edit support information"))); // #TODO hard_lang
+	setTitle(rpl::single(u"Edit support information"_q)); // #TODO hard_lang
 
 	const auto save = [=] {
 		const auto done = crl::guard(this, [=](bool success) {
@@ -270,7 +270,7 @@ Helper::Helper(not_null<Main::Session*> session)
 		});
 	}).fail([=] {
 		setSupportName(
-			qsl("[rand^")
+			u"[rand^"_q
 			+ QString::number(Core::Sandbox::Instance().installationTag())
 			+ ']');
 	}).send();