Issue 4128, 5138 - Add Parser and Serializer implemented in C++

compiled/storage/Parser.h

+/*
+* This file is part of Adblock Plus <https://adblockplus.org/>,
+* Copyright (C) 2006-present eyeo GmbH
+*
+* Adblock Plus is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 3 as
+* published by the Free Software Foundation.
+*
+* Adblock Plus is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+#include "../subscription/Subscription.h"
+
+class Parser : public ref_counted
+{
+  enum class State
+  {
+    Initial, SubscriptionSection, SubscriptionFiltersSection
+  };
+  ~Parser() {}
+public:
+  typedef std::vector<SubscriptionPtr> Subscriptions;
+  Parser();
+  static Parser* BINDINGS_EXPORTED Create()
+  {
+    return new Parser();
+  }
+  void BINDINGS_EXPORTED Process(const String& untrimmedLine);
+  void BINDINGS_EXPORTED Finalize();
+
+  Subscriptions::size_type BINDINGS_EXPORTED GetSubscriptionCount() const;
+  Subscription* BINDINGS_EXPORTED SubscriptionAt(Subscriptions::size_type index);
+private:
+  SubscriptionPtr createSubscriptionFromProperties() const;
+
+  void Initial_processLine(const String& line);
+  void SubscriptionSection_processLine(const String& line);
+  void SubscriptionFiltersSection_processLine(const String& line);
+
+  void onSubscription(SubscriptionPtr subscription);
+
+  void onFail(const char* error)
+  {

[Wladimir Palant, 2017/12/21 10:30:37]

I assume that this is supposed to do something if DEBUG is defined?

+  }
+private:
+  // parser members:
+  State mCurrentState;
+  Subscriptions mSubscriptions;
+
+  // State memebers:
+  // Initial State
+  // it's also the parser member
+  Subscription::KeyValues mFileProperties;
+  // [Subscription] section
+  Subscription::KeyValues mSubscriptionProperties;
+  // [Subscription filters] section
+  SubscriptionPtr mSubscription;
+};