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/*
** SWISH++
** conf_enum.h
**
** Copyright (C) 2000 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 conf_enum_H
#define conf_enum_H
// local
#include "conf_string.h"
//*****************************************************************************
//
// SYNOPSIS
//
class conf_enum : public conf<std::string>
//
// DESCRIPTION
//
// A conf_enum is-a conf<std::string> whose value must be of a
// pre-determined set of legal values.
//
//*****************************************************************************
{
public:
bool is_legal( char const*, std::ostream& = std::cerr ) const;
protected:
conf_enum( char const *name, char const *const legal_values[] );
CONF_STRING_ASSIGN_OPS( conf_enum )
virtual void parse_value( char *line );
private:
char const *const *const legal_values_;
};
#define CONF_ENUM_ASSIGN_OPS(T) \
T& operator=( std::string const &s ) { \
conf_enum::operator=( s ); \
return *this; \
} \
T& operator=( char const *s ) { \
conf_enum::operator=( s ); \
return *this; \
}
#endif /* conf_enum_H */
/* vim:set et sw=4 ts=4: */
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