summaryrefslogtreecommitdiff
path: root/dviware/dvisvgm/src/StreamReader.hpp
diff options
context:
space:
mode:
authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvisvgm/src/StreamReader.hpp
Initial commit
Diffstat (limited to 'dviware/dvisvgm/src/StreamReader.hpp')
-rw-r--r--dviware/dvisvgm/src/StreamReader.hpp68
1 files changed, 68 insertions, 0 deletions
diff --git a/dviware/dvisvgm/src/StreamReader.hpp b/dviware/dvisvgm/src/StreamReader.hpp
new file mode 100644
index 0000000000..2b95f653ca
--- /dev/null
+++ b/dviware/dvisvgm/src/StreamReader.hpp
@@ -0,0 +1,68 @@
+/*************************************************************************
+** StreamReader.hpp **
+** **
+** This file is part of dvisvgm -- a fast DVI to SVG converter **
+** Copyright (C) 2005-2019 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 STREAMREADER_HPP
+#define STREAMREADER_HPP
+
+#include <istream>
+#include <string>
+#include <vector>
+#include "MessageException.hpp"
+
+class CRC32;
+
+class StreamReader {
+ public:
+ explicit StreamReader (std::istream &is) : _is(&is) {}
+ virtual ~StreamReader () =default;
+ bool isStreamValid () const {return _is;}
+ bool eof () const {return _is->eof();}
+ void clearStream () {_is->clear();}
+ std::istream& replaceStream (std::istream &s);
+ uint32_t readUnsigned (int n);
+ uint32_t readUnsigned (int n, CRC32 &crc32);
+ int32_t readSigned (int n);
+ int32_t 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_t>& readBytes (int n, std::vector<uint8_t> &bytes);
+ std::vector<uint8_t>& readBytes (int n, std::vector<uint8_t> &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 {
+ explicit StreamReaderException (const std::string &msg) : MessageException(msg) {}
+};
+
+#endif