src/stream/ZStream_HexStrim.h

/*  @(#) $Id: ZStream_HexStrim.h,v 1.5 2006/04/27 03:19:32 agreen Exp $ */

/* ------------------------------------------------------------
Copyright (c) 2003 Andrew Green and Learning in Motion, Inc.
http://www.zoolib.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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 AND NONINFRINGEMENT. IN NO EVENT SHALL THE
COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------ */

#ifndef __ZStream_HexStrim__
#define __ZStream_HexStrim__ 1
#include "zconfig.h"

#include "ZStream.h"

// =================================================================================================
#pragma mark -
#pragma mark * ZStreamR_HexStrim

class ZStrimU;


class ZStreamR_HexStrim : public ZStreamR
        {
public:
        ZStreamR_HexStrim(const ZStrimU& iStrimU);
        ZStreamR_HexStrim(bool iAllowUnderscore, const ZStrimU& iStrimU);

        virtual ~ZStreamR_HexStrim();
        virtual void Imp_Read(void* iDest, size_t iCount, size_t* oCountRead);

private:
        const ZStrimU& fStrimU;
        bool fAllowUnderscore;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStreamW_HexStrim

class ZStrimW;


class ZStreamW_HexStrim : public ZStreamW
        {
public:
        ZStreamW_HexStrim(const std::string& iByteSeparator,
                const std::string& iChunkSeparator, size_t iChunkSize, const ZStrimW& iStrimSink);

        ZStreamW_HexStrim(const std::string& iByteSeparator,
                const std::string& iChunkSeparator, size_t iChunkSize,
                bool iUseUnderscore, const ZStrimW& iStrimSink);

// From ZStreamW
        virtual void Imp_Write(const void* iSource, size_t iCount, size_t* oCountWritten);
        virtual void Imp_Flush();

protected:
        const ZStrimW& fStrimSink;
        std::string fByteSeparator;
        std::string fChunkSeparator;
        size_t fChunkSize;
        size_t fCurrentChunkLength;
        size_t fWrittenAny;
        const char* fHexDigits;
        };

#endif // __ZStream_HexStrim__

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