configurationdatabase.h

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/***************************************************************************************************
*****           Copyright (C) 2005  John Schneiderman <JohnMS@member.fsf.org>                  *****
*****                                                                                          *****
*****           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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA     *****
***************************************************************************************************/
#ifndef CONFIGURATION_DATABASE_H_
#define CONFIGURATION_DATABASE_H_

#include <map>
using std::map;

#include <vector>
using std::vector;

#include <iterator>
using std::iterator;

#include <iostream>
using std::istream;
using std::ostream;

#include <string>
using std::string;

class ConfigurationDatabase
{
public:
    typedef map<string, string> KeyValuePair;
    typedef map<string, KeyValuePair> ConfigurationDatabaseType;
    typedef vector<string> Keys;
    typedef vector<string> Headers;

    ConfigurationDatabase();
    ConfigurationDatabase(const string &filename);
    int intValue(const string &header, const string &key) const;
    double doubleValue(const string &header, const string &key) const;
    string stringValue(const string &header, const string &key) const;
    Headers headers() const;
    Keys keys(const string &header) const;
    void addHeaderKeyValuePair(const string &header, const string &key, const string &value);
    void addKeyValuePair(const string &header, const string &key, const string &value);
    friend istream& operator>>(istream &in, ConfigurationDatabase &database);
    friend ostream& operator<<(ostream &out, const ConfigurationDatabase &database);

private:
    ConfigurationDatabaseType m_configurations;
    map<int, string> m_comments;
    static const char BEGIN_COMMENT;
    static const char BEGIN_HEADER;
    static const char END_HEADER;
};
#endif

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