source: XMLIO_V2/external/include/Poco/Net/QuotedPrintableEncoder.h @ 80

//
// QuotedPrintableEncoder.h
//
// $Id: //poco/1.3/Net/include/Poco/Net/QuotedPrintableEncoder.h#1 $
//
// Library: Net
// Package: Messages
// Module:  QuotedPrintableEncoder
//
// Definition of the QuotedPrintableEncoder class.
//
// Copyright (c) 2005-2006, 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 Net_QuotedPrintableEncoder_INCLUDED
#define Net_QuotedPrintableEncoder_INCLUDED


#include "Poco/Net/Net.h"
#include "Poco/UnbufferedStreamBuf.h"
#include <ostream>


namespace Poco {
namespace Net {


class Net_API QuotedPrintableEncoderBuf: public Poco::UnbufferedStreamBuf
        /// This streambuf encodes all data written
        /// to it in quoted-printable encoding (see RFC 2045)
        /// and forwards it to a connected ostream.
{
public:
        QuotedPrintableEncoderBuf(std::ostream& ostr);
        ~QuotedPrintableEncoderBuf();
        int close();
        
private:
        int writeToDevice(char c);
        void writeEncoded(char c);
        void writeRaw(char c);

        int           _pending;
        int           _lineLength;
        std::ostream& _ostr;
};


class Net_API QuotedPrintableEncoderIOS: public virtual std::ios
        /// The base class for QuotedPrintableEncoder.
        ///
        /// This class is needed to ensure the correct initialization
        /// order of the stream buffer and base classes.
{
public:
        QuotedPrintableEncoderIOS(std::ostream& ostr);
        ~QuotedPrintableEncoderIOS();
        int close();
        QuotedPrintableEncoderBuf* rdbuf();

protected:
        QuotedPrintableEncoderBuf _buf;
};


class Net_API QuotedPrintableEncoder: public QuotedPrintableEncoderIOS, public std::ostream
        /// This ostream encodes all data
        /// written to it in quoted-printable encoding
        /// (see RFC 2045) and forwards it to a connected ostream.
        /// Always call close() when done
        /// writing data, to ensure proper
        /// completion of the encoding operation.
{
public:
        QuotedPrintableEncoder(std::ostream& ostr);
        ~QuotedPrintableEncoder();
};


} } // namespace Poco::Net


#endif // Net_QuotedPrintableEncoder_INCLUDED