/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#ifndef _RTFTOKENIZER_HXX_
#define _RTFTOKENIZER_HXX_

#include <rtflistener.hxx>
#include <com/sun/star/task/XStatusIndicator.hpp>

class SvStream;

namespace writerfilter {
    namespace rtftok {
        /// RTF tokenizer that separates control words from text.
        class RTFTokenizer
        {
            public:
                RTFTokenizer(RTFListener& rImport, SvStream* pInStream, com::sun::star::uno::Reference<com::sun::star::task::XStatusIndicator> const& xStatusIndicator);
                virtual ~RTFTokenizer();

                int resolveParse();
                int asHex(char ch);
                /// Number of states on the stack.
                int getGroup() const;
                /// To be invoked by the pushState() callback to signal when the importer enters a group.
                void pushGroup();
                /// To be invoked by the popState() callback to single when the importer leaves a group.
                void popGroup();
                OUString getPosition();
                sal_Size getGroupStart();
            private:
                SvStream& Strm();
                int resolveKeyword();
                int dispatchKeyword(OString& rKeyword, bool bParam, int nParam);

                RTFListener& m_rImport;
                SvStream* m_pInStream;
                com::sun::star::uno::Reference<com::sun::star::task::XStatusIndicator> const& m_xStatusIndicator;
                // This is the same as aRTFControlWords, but sorted
                static std::vector<RTFSymbol> m_aRTFControlWords;
                static bool m_bControlWordsSorted;
                /// Same as the size of the importer's states, except that this can be negative for invalid input.
                int m_nGroup;
                sal_Int32 m_nLineNumber;
                sal_Int32 m_nLineStartPos;
                sal_Size m_nGroupStart;
        };
    } // namespace rtftok
} // namespace writerfilter

#endif // _RTFTOKENIZER_HXX_

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