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/*************************************************************************
** CMapManager.hpp **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2019 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 CMAPMANAGER_HPP
#define CMAPMANAGER_HPP
#include <memory>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include "CharMapID.hpp"
struct CMap;
struct FontEncoding;
class FontEncodingPair;
class PhysicalFont;
class CMapManager
{
public:
CMap* lookup (const std::string &name);
const CMap* findCompatibleBaseFontMap (const PhysicalFont *font, const CMap *cmap, CharMapID &charmapID);
static CMapManager& instance ();
protected:
CMapManager () : _level(0) {}
private:
std::unordered_map<std::string, std::unique_ptr<CMap>> _cmaps; ///< loaded cmaps
std::unordered_set<std::string> _includedCMaps; ///< names of cmaps loaded by "usecmap"
int _level; ///< current inclusion depth; >0 if a cmap loaded by "usecmap" is being processed
};
#endif
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