parse_reduce_row.java

/*
 * STANDARD ML OF NEW JERSEY COPYRIGHT NOTICE, LICENSE AND DISCLAIMER.
 * 
 * Copyright (c) 1989-1998 by Lucent Technologies
 * 
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted, provided
 * that the above copyright notice appear in all copies and that both the
 * copyright notice and this permission notice and warranty disclaimer appear
 * in supporting documentation, and that the name of Lucent Technologies, Bell
 * Labs or any Lucent entity not be used in advertising or publicity pertaining
 * to distribution of the software without specific, written prior permission.
 *
 * Lucent disclaims all warranties with regard to this software, including all
 * implied warranties of merchantability and fitness. In no event shall Lucent
 * be liable for any special, indirect or consequential damages or any damages
 * whatsoever resulting from loss of use, data or profits, whether in an action
 * of contract, negligence or other tortious action, arising out of or in
 * connection with the use or performance of this software. 
 *
 * Taken from this URL:
 * http://www.smlnj.org/license.html
 * 
 * This license is compatible with the GNU GPL (see section "Standard ML of New
 * Jersey Copyright License"):
 * http://www.gnu.org/licenses/license-list.html#StandardMLofNJ
 */

/*
 * Copyright 1996-1999 by Scott Hudson, Frank Flannery, C. Scott Ananian
 */

package weka.core.parser.java_cup;

/** This class represents one row (corresponding to one machine state) of the 
 *  reduce-goto parse table. 
 */
public class parse_reduce_row {
  /*-----------------------------------------------------------*/
  /*--- Constructor(s) ----------------------------------------*/
  /*-----------------------------------------------------------*/

  /** Simple constructor. Note: this should not be used until the number
   *  of terminals in the grammar has been established.
   */
  public parse_reduce_row()
    {
      /* make sure the size is set */
      if (_size <= 0 )  _size = non_terminal.number();

      /* allocate the array */
      under_non_term = new lalr_state[size()];
    }

  /*-----------------------------------------------------------*/
  /*--- (Access to) Static (Class) Variables ------------------*/
  /*-----------------------------------------------------------*/

  /** Number of columns (non terminals) in every row. */
  protected static int _size = 0;

  /** Number of columns (non terminals) in every row. */
  public static int size() {return _size;}
   
  //Hm Added clear  to clear all static fields
  public static void clear() {
      _size = 0;
  }
  
  /*-----------------------------------------------------------*/
  /*--- (Access to) Instance Variables ------------------------*/
  /*-----------------------------------------------------------*/

  /** Actual entries for the row. */
  public lalr_state under_non_term[];
}