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authorKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
committerKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
commitad547a6b5986815fda458221149728d9d9ab1d87 (patch)
tree16296910eb3eca724371474ea9aea3994dc69614 /Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp
parent947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (diff)
restore Build,TODO from r57911
git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp')
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diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp
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+/*************************************************************************
+** CMapReader.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 CMAPREADER_HPP
+#define CMAPREADER_HPP
+
+#include <cstdlib>
+#include <istream>
+#include <memory>
+#include <string>
+#include <vector>
+#include "MessageException.hpp"
+
+
+struct CMap;
+class InputReader;
+
+class CMapReader {
+ class Token {
+ public:
+ enum class Type {UNKNOWN, END, DELIM, NUMBER, STRING, NAME, OPERATOR};
+
+ public:
+ explicit Token (InputReader &ir);
+ void scan (InputReader &ir);
+ Type type () const {return _type;}
+ const std::string& strvalue () const {return _value;}
+ double numvalue () const {return std::atof(_value.c_str());}
+
+ private:
+ Type _type;
+ std::string _value;
+ };
+
+ public:
+ std::unique_ptr<CMap> read (const std::string &fname);
+ std::unique_ptr<CMap> read (std::istream &is, const std::string &name);
+
+ protected:
+ Token popToken () {Token t=_tokens.back(); _tokens.pop_back(); return t;}
+ void executeOperator (const std::string &op, InputReader &ir);
+ void parseCIDChars (InputReader &ir, bool isRange);
+ void op_beginbfchar (InputReader &ir);
+ void op_beginbfrange (InputReader &ir);
+ void op_begincidchar (InputReader &ir);
+ void op_begincidrange (InputReader &ir);
+ void op_def (InputReader &ir);
+ void op_endcmap (InputReader &ir);
+ void op_usecmap (InputReader &ir);
+
+ private:
+ std::unique_ptr<SegmentedCMap> _cmap; ///< pointer to CMap being read
+ std::vector<Token> _tokens; ///< stack of tokens to be processed
+ bool _inCMap=false; ///< true if operator begincmap has been executed
+};
+
+
+struct CMapReaderException : public MessageException {
+ explicit CMapReaderException (const std::string &msg) : MessageException(msg) {}
+};
+
+#endif