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author | Karl Berry <karl@freefriends.org> | 2021-02-25 19:22:25 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2021-02-25 19:22:25 +0000 |
commit | ad547a6b5986815fda458221149728d9d9ab1d87 (patch) | |
tree | 16296910eb3eca724371474ea9aea3994dc69614 /Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp | |
parent | 947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (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')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp new file mode 100644 index 00000000000..6e9a03ce980 --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-src/src/CMapReader.hpp @@ -0,0 +1,79 @@ +/************************************************************************* +** 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 |