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/*
 * lisp_implementation_version.java
 *
 * Copyright (C) 2003 Peter Graves
 * $Id$
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * As a special exception, the copyright holders of this library give you
 * permission to link this library with independent modules to produce an
 * executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under
 * terms of your choice, provided that you also meet, for each linked
 * independent module, the terms and conditions of the license of that
 * module.  An independent module is a module which is not derived from
 * or based on this library.  If you modify this library, you may extend
 * this exception to your version of the library, but you are not
 * obligated to do so.  If you do not wish to do so, delete this
 * exception statement from your version.
 */

package org.armedbear.lisp;

import java.math.BigInteger;
import java.text.MessageFormat;

// ### lisp_implementation_version
// lisp_implementation_version  => description
public final class lisp_implementation_version extends Primitive
{
    private lisp_implementation_version()
    {
        super("lisp-implementation-version","");
    }

    @Override
    public LispObject execute()
    {
        String jdkVersion = MessageFormat.format("{0}-{1}-{2}",
                                                 System.getProperty("java.vm.name"),
                                                 System.getProperty("java.vm.vendor"),
                                                 System.getProperty("java.runtime.version"))
            .replace(" ", "_");
        String osVersion  = MessageFormat.format("{0}-{1}-{2}",
                                                 System.getProperty("os.arch"),
                                                 System.getProperty("os.name"),
                                                 System.getProperty("os.version"))
            .replace(" ", "_");

        return Primitives.VALUES.execute(new SimpleString(Version.getVersion()),
                                         new SimpleString(jdkVersion),
                                         new SimpleString(osVersion));
    }

    private static final lisp_implementation_version LISP_IMPLEMENTATION_VERSION =
        new lisp_implementation_version();
}