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diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/InputReader.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/InputReader.hpp
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--- a/Build/source/texk/dvisvgm/dvisvgm-src/src/InputReader.hpp
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-/*************************************************************************
-** InputReader.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 INPUTREADER_HPP
-#define INPUTREADER_HPP
-
-#include <istream>
-#include <map>
-#include <string>
-#include <vector>
-#include "InputBuffer.hpp"
-
-class InputReader {
- public:
- virtual ~InputReader() =default;
- virtual int get () =0;
- virtual int peek () const =0;
- virtual int peek (size_t n) const =0;
- virtual bool eof () const =0;
- virtual bool check (char c) const {return peek() == c;}
- virtual bool check (const char *s, bool consume=true);
- virtual void skip (size_t n);
- virtual bool skipUntil (const char *str);
- virtual std::string readUntil (const char *str);
- virtual int find (char c) const;
- virtual void skipSpace ();
- virtual int getInt ();
- virtual bool parseInt (int &val, bool accept_sign=true);
- virtual bool parseUInt (int base, unsigned &val);
- virtual bool parseUInt (unsigned &val);
- virtual char parseDouble (double &val);
- virtual double getDouble ();
- virtual std::string getWord ();
- virtual char getPunct ();
- virtual std::string getQuotedString (const char *quotechars);
- virtual std::string getString ();
- virtual std::string getString (size_t n);
- virtual std::string getString (const char *delim);
- virtual std::string getLine ();
- virtual int parseAttributes (std::map<std::string,std::string> &attr, bool requireValues, const char *quotechars=nullptr);
- virtual operator bool () const {return !eof();}
-};
-
-
-class StreamInputReader : public InputReader {
- public:
- explicit StreamInputReader (std::istream &is) : _is(is) {}
- int get () override {return _is.get();}
- int peek () const override {return _is.peek();}
- int peek (size_t n) const override;
- bool eof () const override {return !_is || _is.eof();}
- std::istream& getStream () {return _is;}
-
- private:
- std::istream &_is;
-};
-
-
-class BufferInputReader : public InputReader {
- public:
- explicit BufferInputReader (InputBuffer &ib) : _ib(&ib) {}
- void assign (InputBuffer &ib) {_ib = &ib;}
- int get () override {return _ib->get();}
- int peek () const override {return _ib->peek();}
- int peek (size_t n) const override {return _ib->peek(n);}
- bool eof () const override {return _ib->eof();}
-
- private:
- InputBuffer *_ib;
-};
-
-
-/** Implementation of the Knuth-Morris-Pratt search algorithm.
- * http://www.inf.fh-flensburg.de/lang/algorithmen/pattern/kmpen.htm */
-class StringMatcher {
- public:
- StringMatcher () : _charsRead(0) {}
- explicit StringMatcher (const std::string &pattern) : _charsRead(0) {setPattern(pattern);}
- void setPattern (const std::string &pattern);
- bool match (InputReader &ir);
- std::string read (InputReader &ir);
- size_t charsRead () const {return _charsRead;}
-
- private:
- std::string _pattern;
- std::vector<size_t> _borders;
- size_t _charsRead;
-};
-
-#endif