line_despatch.h

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#ifndef LINE_DESPATCH_H
#define LINE_DESPATCH_H
#pragma once
/***************************************************************************
 *   Copyright (C) 2004, 2006 Symbian Software Ltd.                        *
 *   All rights reserved.                                                  *
 *   Copyright (C) 2002, 2003 Tony Finch <dot@dotat.at>.                   *
 *   All rights reserved.                                                  *
 *   Copyright (C) 1985, 1993 The Regents of the University of California. *
 *   All rights reserved.                                                  *
 *   Copyright (C) 2007-2013 Mike Kinghan, imk@burroingroingjoing.com      *
 *   All rights reserved.                                                  *
 *                                                                         *
 *   Contributed by Mike Kinghan, imk@burroingroingjoing.com,              *
 *   derived from the code of Tony Finch                                   *
 *                                                                         *
 *   Redistribution and use in source and binary forms, with or without    *
 *   modification, are permitted provided that the following conditions    *
 *   are met:                                                              *
 *                                                                         *
 *   Redistributions of source code must retain the above copyright        *
 *   notice, this list of conditions and the following disclaimer.         *
 *                                                                         *
 *   Redistributions in binary form must reproduce the above copyright     *
 *   notice, this list of conditions and the following disclaimer in the   *
 *   documentation and/or other materials provided with the distribution.  *
 *                                                                         *
 *   Neither the name of Symbian Software Ltd. nor the names of its        *
 *   contributors may be used to endorse or promote products derived from  *
 *   this software without specific prior written permission.              *
 *                                                                         *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS   *
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT     *
 *   LIMITED TO, THE IMPLIED WARRANTIES OF  MERCHANTABILITY AND FITNESS    *
 *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE        *
 *   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,   *
 *   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,  *
 *   BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS *
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 *   DAMAGE.                                                               *
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 **************************************************************************/

#include "line_type.h"
#include "parsed_line.h"
#include <string>
#include <memory>

struct line_despatch {

        static void top();

        static parsed_line & cur_line() {
                return *_cur_line_;
        }

        static void drop() {
                _cur_line_->drop();
        }

        static void print() {
                _cur_line_->output();
        }

        static line_type next();

        static void  substitute(std::string const & replacement);

        static unsigned & lines_suppressed() {
                return _lines_suppressed_;
        }

        static unsigned & lines_changed() {
                return _lines_changed_;
        }

        static std::string pretty();

private:

        static unsigned _lines_suppressed_;
        static unsigned _lines_changed_;
        static std::unique_ptr<parsed_line> _cur_line_;

};

#endif // EOF