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diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/SpecialManager.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/SpecialManager.hpp
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index 76cdb3e2e66..00000000000
--- a/Build/source/texk/dvisvgm/dvisvgm-src/src/SpecialManager.hpp
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-/*************************************************************************
-** SpecialManager.hpp **
-** **
-** This file is part of dvisvgm -- a fast DVI to SVG converter **
-** Copyright (C) 2005-2021 Martin Gieseking <martin.gieseking@uos.de> **
-** **
-** This program is free software; you can redistribute it and/or **
-** modify it under the terms of the GNU General Public License as **
-** published by the Free Software Foundation; either version 3 of **
-** the License, or (at your option) any later version. **
-** **
-** This program 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 this program; if not, see <http://www.gnu.org/licenses/>. **
-*************************************************************************/
-
-#ifndef SPECIALMANAGER_HPP
-#define SPECIALMANAGER_HPP
-
-#include <memory>
-#include <ostream>
-#include <string>
-#include <unordered_map>
-#include <vector>
-#include "SpecialHandler.hpp"
-
-class SpecialActions;
-
-class SpecialManager {
- private:
- using HandlerPool = std::vector<std::unique_ptr<SpecialHandler>>;
- using HandlerMap = std::unordered_map<std::string,SpecialHandler*>;
-
- public:
- SpecialManager (const SpecialManager &) =delete;
- static SpecialManager& instance ();
- void registerHandler (std::unique_ptr<SpecialHandler> handler);
- void registerHandlers (std::vector<std::unique_ptr<SpecialHandler>> &handlers, const char *ignorelist);
- void unregisterHandlers ();
- void preprocess (const std::string &special, SpecialActions &actions) const;
- bool process (const std::string &special, double dvi2bp, SpecialActions &actions) const;
- void notifyPreprocessingFinished () const;
- void notifyBeginPage (unsigned pageno, SpecialActions &actions) const;
- void notifyEndPage (unsigned pageno, SpecialActions &actions) const;
- void notifyPositionChange (double x, double y, SpecialActions &actions) const;
- void writeHandlerInfo (std::ostream &os) const;
- SpecialHandler* findHandlerByName (const std::string &name) const;
-
- protected:
- SpecialManager () =default;
- SpecialHandler* findHandlerByPrefix (const std::string &prefix) const;
-
- private:
- HandlerPool _handlerPool; ///< stores pointers to all handlers
- HandlerMap _handlersByPrefix; ///< pointers to handlers for corresponding prefixes
-};
-
-#endif