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/*
** SWISH++
** results_formatter.h
**
** Copyright (C) 2001 Paul J. Lucas
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program 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 General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef results_formatter_H
#define results_formatter_H
// standard
#include <iostream>
// local
class file_info;
#include "query.h"
//*****************************************************************************
//
// SYNOPSIS
//
class results_formatter
//
// DESCRIPTION
//
// A results_formatter is an abstract base class for classes that format
// search result output.
//
//*****************************************************************************
{
public:
virtual ~results_formatter();
virtual void pre( stop_word_set const& ) const = 0;
// Output search-result "meta" information before the
// results themselves: the set of stop words found in the
// query (if any) and the number of results.
virtual void result( int rank, file_info const& ) const = 0;
// Output an individual search result's information: it's
// rank, path, and title.
virtual void post() const;
// Output any trailing information.
protected:
results_formatter( std::ostream &o, int results ) :
out_( o ), results_( results ) { }
std::ostream& out_;
int const results_;
};
#endif /* results_formatter_H */
/* vim:set noet sw=8 ts=8: */
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