// // HexBinaryDecoder.h // // $Id: //poco/Main/Foundation/include/Poco/HexBinaryDecoder.h#2 $ // // Library: Foundation // Package: Streams // Module: HexBinary // // Definition of the HexBinaryDecoder class. // // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. // and Contributors. // // Permission is hereby granted, free of charge, to any person or organization // obtaining a copy of the software and accompanying documentation covered by // this license (the "Software") to use, reproduce, display, distribute, // execute, and transmit the Software, and to prepare derivative works of the // Software, and to permit third-parties to whom the Software is furnished to // do so, all subject to the following: // // The copyright notices in the Software and this entire statement, including // the above license grant, this restriction and the following disclaimer, // must be included in all copies of the Software, in whole or in part, and // all derivative works of the Software, unless such copies or derivative // works are solely in the form of machine-executable object code generated by // a source language processor. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // #ifndef Foundation_HexBinaryDecoder_INCLUDED #define Foundation_HexBinaryDecoder_INCLUDED #include "Poco/Foundation.h" #include "Poco/UnbufferedStreamBuf.h" #include namespace Poco { class Foundation_API HexBinaryDecoderBuf: public UnbufferedStreamBuf /// This streambuf decodes all hexBinary-encoded data read /// from the istream connected to it. /// In hexBinary encoding, each binary octet is encoded as a character tuple, /// consisting of two hexadecimal digits ([0-9a-fA-F]) representing the octet code. /// See also: XML Schema Part 2: Datatypes (http://www.w3.org/TR/xmlschema-2/), /// section 3.2.15. { public: HexBinaryDecoderBuf(std::istream& istr); ~HexBinaryDecoderBuf(); private: int readFromDevice(); int readOne(); std::istream& _istr; }; class Foundation_API HexBinaryDecoderIOS: public virtual std::ios /// The base class for HexBinaryDecoder. /// /// This class is needed to ensure the correct initialization /// order of the stream buffer and base classes. { public: HexBinaryDecoderIOS(std::istream& istr); ~HexBinaryDecoderIOS(); HexBinaryDecoderBuf* rdbuf(); protected: HexBinaryDecoderBuf _buf; }; class Foundation_API HexBinaryDecoder: public HexBinaryDecoderIOS, public std::istream /// This istream decodes all hexBinary-encoded data read /// from the istream connected to it. /// In hexBinary encoding, each binary octet is encoded as a character tuple, /// consisting of two hexadecimal digits ([0-9a-fA-F]) representing the octet code. /// See also: XML Schema Part 2: Datatypes (http://www.w3.org/TR/xmlschema-2/), /// section 3.2.15. { public: HexBinaryDecoder(std::istream& istr); ~HexBinaryDecoder(); }; } // namespace Poco #endif // Foundation_HexBinaryDecoder_INCLUDED