/*
 *    p l a i n c n v . h
 *    
 *    Purpose:
 *        Plain Stream -> html converter
 *
 *  History
 *      September '96: brettm - created
 *    
 *    Copyright (C) Microsoft Corp. 1995, 1996.
 */

#ifndef _PLAINCONV_H
#define _PLAINCONV_H

#define CCHMAX_BUFFER       8192

class CPlainConverter
{
public:
    // *** IUnknown methods ***
    HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID FAR *);
    ULONG STDMETHODCALLTYPE AddRef();
    ULONG STDMETHODCALLTYPE Release();

    CPlainConverter();
    ~CPlainConverter();

    HRESULT HrConvert(LPSTREAM pstmPlain, WCHAR chQuoteW, LPSTREAM *ppstmHtml);

private:
    ULONG                   m_cRef;
    LPSTREAM                m_pstmPlain,
                            m_pstmOut;
    ULONG                   m_cchOut,
                            m_cchBuffer,
                            m_cchPos,
                            m_nSpcs;
    BOOL                    m_fCRLF;
    WCHAR                   m_rgchOutBufferW[CCHMAX_BUFFER];
    WCHAR                   m_rgchBufferW[CCHMAX_BUFFER],
                            m_chQuoteW;

    HRESULT HrParseStream();
    HRESULT HrWrite(LPCWSTR pszW, ULONG cch);
    HRESULT HrOutputSpaces(ULONG cSpaces);
    inline HRESULT HrOutputQuoteChar();

};

typedef CPlainConverter *LPPLAINCONVERTER;

HRESULT HrConvertPlainStreamW(LPSTREAM pstm, WCHAR chQuote, LPSTREAM *ppstmHtml);
HRESULT HrConvertHTMLToFormat(LPSTREAM pstmHtml, LPSTREAM *ppstm, CLIPFORMAT cf);

HRESULT EscapeStringToHTML(LPWSTR pwszIn, LPWSTR *ppwszOut);

#endif //_PLAINCONV_H