libcruft-util/version.hpp

/*
 * This file is part of libgim.
 *
 * libgim 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 3 of the License, or (at your option) any later
 * version.
 * 
 * libgim 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 libgim.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Copyright 2010 Danny Robson <danny@blubinc.net>
 */

#ifndef __VERSION_HPP
#define __VERSION_HPP

#include <string>
#include <vector>
#include <iostream>


class version {
    public:
        enum release_t {
            RELEASE_ALPHA,
            RELEASE_BETA,
            RELEASE_GAMMA,
            RELEASE_PRODUCTION
        };

        version (unsigned int _major,
                 unsigned int _minor);
        version (const std::string& str);
        virtual ~version () { ; }

        virtual void sanity (void) const;

    protected:
        enum {
            OFFSET_MAJOR = 0,
            OFFSET_MINOR = 1,
            OFFSET_POINT = 2,
            OFFSET_BUILD = 3,

            NUM_OFFSETS
        };

        std::vector <unsigned int>  m_values;
        release_t                   m_release;

        void parse (const std::string&);

    public:

        unsigned int major (void) const
            { return m_values[OFFSET_MAJOR]; }
        unsigned int minor (void) const
            { return m_values[OFFSET_MINOR]; }
        unsigned int point (void) const
            { return m_values[OFFSET_POINT]; }
        unsigned int build (void) const
            { return m_values[OFFSET_BUILD]; }

        bool operator <  (const version& rhs) const;
        bool operator >  (const version& rhs) const;
        bool operator >= (const version& rhs) const;
        bool operator <= (const version& rhs) const;
        bool operator == (const version& rhs) const
            { return m_values  == rhs.m_values &&
                     m_release == rhs.m_release; }

        friend std::ostream&
        operator <<(std::ostream& os, const version& rhs);
};


std::ostream&
operator <<(std::ostream& os, const version& rhs);

#endif // __VERSION_HPP