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/home/tommi/cxxtools/include/cxxtools/textstream.h

/*
 * Copyright (C) 2004 Marc Boris Duerner
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * As a special exception, you may use this file as part of a free
 * software library without restriction. Specifically, if other files
 * instantiate templates or use macros or inline functions from this
 * file, or you compile this file and link it with other files to
 * produce an executable, this file does not by itself cause the
 * resulting executable to be covered by the GNU General Public
 * License. This exception does not however invalidate any other
 * reasons why the executable file might be covered by the GNU Library
 * General Public License.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef cxxtools_BasicTextStream_h
#define cxxtools_BasicTextStream_h

#include <cxxtools/api.h>
#include <cxxtools/string.h>
#include <cxxtools/textbuffer.h>
#include <iostream>

namespace cxxtools {

template <typename CharT, typename ByteT>
class BasicTextIStream : public std::basic_istream<CharT>
{
    public:
        typedef ByteT extern_type;
        typedef CharT intern_type;
        typedef CharT char_type;
        typedef typename std::char_traits<CharT> traits_type;
        typedef typename traits_type::int_type int_type;
        typedef typename traits_type::pos_type pos_type;
        typedef typename traits_type::off_type off_type;
        typedef std::basic_istream<extern_type> StreamType;
        typedef TextCodec<char_type, extern_type> CodecType;

    public:
        BasicTextIStream(StreamType& is, CodecType* codec)
        : std::basic_istream<intern_type>(0)
        , _buffer( &is, codec )
        {
            init(&_buffer);
        }

        explicit BasicTextIStream(CodecType* codec)
        : std::basic_istream<intern_type>(0)
        , _buffer( 0, codec )
        {
            init(&_buffer);
        }

        ~BasicTextIStream()
        {  }

        void attach(StreamType& is)
        {
            _buffer.attach( is );
            this->clear();
        }

        void detach()
        {
            _buffer.detach();
            this->clear();
        }

        void terminate()
        {
            _buffer.terminate();
        }

        BasicTextBuffer<intern_type, extern_type>& buffer()
        { return _buffer; }

    private:
        BasicTextBuffer<intern_type, extern_type> _buffer;
};


template <typename CharT, typename ByteT>
class BasicTextOStream : public std::basic_ostream<CharT>
{
    public:
        typedef ByteT extern_type;
        typedef CharT intern_type;
        typedef CharT char_type;
        typedef typename std::char_traits<CharT> traits_type;
        typedef typename traits_type::int_type int_type;
        typedef typename traits_type::pos_type pos_type;
        typedef typename traits_type::off_type off_type;
        typedef std::basic_ostream<extern_type> StreamType;
        typedef TextCodec<char_type, extern_type> CodecType;

    public:
        BasicTextOStream(StreamType& os, CodecType* codec)
        : std::basic_ostream<intern_type>(0)
        , _buffer( &os , codec )
        { init(&_buffer); }

        explicit BasicTextOStream(CodecType* codec)
        : std::basic_ostream<intern_type>(0)
        , _buffer( 0 , codec )
        { init(&_buffer); }

        ~BasicTextOStream()
        {  }

        void attach(StreamType& os)
        {
            _buffer.attach( os );
            this->clear();
        }

        void detach()
        {
            _buffer.detach();
            this->clear();
        }

        void terminate()
        {
            _buffer.terminate();
        }

        BasicTextBuffer<intern_type, extern_type>& buffer()
        { return _buffer; }

    private:
        BasicTextBuffer<intern_type, extern_type> _buffer;
};

template <typename CharT, typename ByteT>
class BasicTextStream : public std::basic_iostream<CharT>
{
    public:
        typedef ByteT extern_type;
        typedef CharT intern_type;
        typedef CharT char_type;
        typedef typename std::char_traits<CharT> traits_type;
        typedef typename traits_type::int_type int_type;
        typedef typename traits_type::pos_type pos_type;
        typedef typename traits_type::off_type off_type;
        typedef std::basic_iostream<extern_type> StreamType;
        typedef TextCodec<char_type, extern_type> CodecType;

    public:
        BasicTextStream(StreamType& ios, CodecType* codec)
        : std::basic_iostream<intern_type>(0)
        , _buffer( &ios, codec)
        { init(&_buffer); }

        explicit BasicTextStream(CodecType* codec)
        : std::basic_iostream<intern_type>(0)
        , _buffer(0, codec)
        { init(&_buffer); }

        ~BasicTextStream()
        { }

        void attach(StreamType& ios)
        {
            _buffer.attach( ios );
            this->clear();
        }

        void detach()
        {
            _buffer.detach();
            this->clear();
        }

        void terminate()
        {
            _buffer.terminate();
        }

        BasicTextBuffer<intern_type, extern_type>& buffer()
        { return _buffer; }

    private:
        BasicTextBuffer<intern_type, extern_type> _buffer;
};


class CXXTOOLS_API TextIStream : public BasicTextIStream<Char, char>
{
    public:
        typedef TextCodec<cxxtools::Char, char> Codec;

    public:
        TextIStream(std::istream& is, Codec* codec);

        explicit TextIStream(Codec* codec);

        ~TextIStream();
};


class CXXTOOLS_API TextOStream : public BasicTextOStream<Char, char>
{
    public:
        typedef TextCodec<cxxtools::Char, char> Codec;

    public:
        TextOStream(std::ostream& os, Codec* codec);

        explicit TextOStream(Codec* codec);

        ~TextOStream();
};


class CXXTOOLS_API TextStream : public BasicTextStream<Char, char>
{
    public:
        typedef TextCodec<cxxtools::Char, char> Codec;

    public:
        TextStream(std::iostream& ios, Codec* codec);

        explicit TextStream(Codec* codec);

        ~TextStream();
};

} // namespace cxxtools

#endif

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