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diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/StreamReader.h b/Build/source/texk/dvisvgm/dvisvgm-src/src/StreamReader.h
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+++ b/Build/source/texk/dvisvgm/dvisvgm-src/src/StreamReader.h
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+/*************************************************************************
+** StreamReader.h **
+** **
+** This file is part of dvisvgm -- the DVI to SVG converter **
+** Copyright (C) 2005-2015 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 DVISVGM_STREAMREADER_H
+#define DVISVGM_STREAMREADER_H
+
+#include <istream>
+#include <string>
+#include <vector>
+#include "MessageException.h"
+#include "types.h"
+
+class CRC32;
+
+class StreamReader
+{
+ public:
+ StreamReader (std::istream &is) : _is(&is) {}
+ virtual ~StreamReader () {}
+ bool isStreamValid () const {return _is;}
+ bool eof () const {return _is->eof();}
+ void clearStream () {_is->clear();}
+ std::istream& replaceStream (std::istream &s);
+ UInt32 readUnsigned (int n);
+ UInt32 readUnsigned (int n, CRC32 &crc32);
+ Int32 readSigned (int n);
+ Int32 readSigned (int n, CRC32 &crc32);
+ std::string readString ();
+ std::string readString (CRC32 &crc32, bool finalZero=false);
+ std::string readString (int length);
+ std::string readString (int length, CRC32 &crc32);
+ std::vector<UInt8>& readBytes (int n, std::vector<UInt8> &bytes);
+ std::vector<UInt8>& readBytes (int n, std::vector<UInt8> &bytes, CRC32 &crc32);
+ int readByte () {return _is->get();}
+ int readByte (CRC32 &crc32);
+ void seek (std::streampos pos, std::ios::seekdir dir) {_is->seekg(pos, dir);}
+ void seek (std::streampos pos) {_is->seekg(pos);}
+ std::streampos tell () const {return _is->tellg();}
+ int peek () const {return _is->peek();}
+
+ protected:
+ std::istream& getInputStream () {return *_is;}
+
+ private:
+ std::istream *_is;
+};
+
+
+struct StreamReaderException : public MessageException
+{
+ StreamReaderException (const std::string &msg) : MessageException(msg) {}
+};
+
+#endif