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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/src/StreamReader.h')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/src/StreamReader.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/StreamReader.h b/Build/source/texk/dvisvgm/dvisvgm-src/src/StreamReader.h new file mode 100644 index 00000000000..24c37c487d2 --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-src/src/StreamReader.h @@ -0,0 +1,71 @@ +/************************************************************************* +** 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 |