/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * C# Flex 1.4                                                             *
 * Copyright (C) 2004-2005  Jonathan Gilbert <logic@deltaq.org>            *
 * Derived from:                                                           *
 *                                                                         *
 *   JFlex 1.4                                                             *
 *   Copyright (C) 1998-2004  Gerwin Klein <lsf@jflex.de>                  *
 *   All rights reserved.                                                  *
 *                                                                         *
 * This program is free software; you can redistribute it and/or modify    *
 * it under the terms of the GNU General Public License. See the file      *
 * COPYRIGHT for more information.                                         *
 *                                                                         *
 * 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                 *
 *                                                                         *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

using System;

namespace CSFlex
{
    /**
     * Stores an interval of characters together with the character class
     *
     * A character belongs to an interval, if its Unicode value is greater than or equal
     * to the Unicode value of <CODE>start</code> and smaller than or euqal to the Unicode
     * value of <CODE>end</code>.
     *
     * All characters of the interval must belong to the same character class.
     *
     * @author Gerwin Klein
     * @version JFlex 1.4, $Revision: 2.2 $, $Date: 2004/04/12 10:07:48 $
     * @author Jonathan Gilbert
     * @version CSFlex 1.4
     */
    public class CharClassInterval
    {
        /**
         * The first character of the interval
         */
        internal int start;

        /**
         * The last character of the interval
         */
        internal int end;

        /**
         * The code of the class all characters of this interval belong to.
         */
        internal int charClass;

        /**
         * Creates a new CharClassInterval from <CODE>start</code> to <CODE>end</code>
         * that belongs to character class <CODE>charClass</code>.
         *
         * @param start         The first character of the interval
         * @param end           The last character of the interval
         * @param charClass     The code of the class all characters of this interval belong to.
         */
        public CharClassInterval(int start, int end, int charClass)
        {
            this.start = start;
            this.end = end;
            this.charClass = charClass;
        }

        /**
         * returns string representation of this class interval
         */
        public override String ToString()
        {
            return "[" + start + "-" + end + "=" + charClass + "]";
        }
    }
}
