001    /*
002    // $Id: ProductionNode.java 3 2009-05-11 08:11:57Z jhyde $
003    // Clapham generates railroad diagrams to represent computer language grammars.
004    // Copyright (C) 2008-2009 Julian Hyde
005    //
006    // This program is free software; you can redistribute it and/or modify it
007    // under the terms of the GNU General Public License as published by the Free
008    // Software Foundation; either version 2 of the License, or (at your option)
009    // any later version approved by The Eigenbase Project.
010    //
011    // This program is distributed in the hope that it will be useful,
012    // but WITHOUT ANY WARRANTY; without even the implied warranty of
013    // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014    // GNU General Public License for more details.
015    //
016    // You should have received a copy of the GNU General Public License
017    // along with this program; if not, write to the Free Software
018    // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
019    */
020    package net.hydromatic.clapham.parser;
021    
022    /**
023     * TODO:
024    *
025    * @author jhyde
026    * @version $Id: ProductionNode.java 3 2009-05-11 08:11:57Z jhyde $
027    * @since Jul 30, 2008
028    */
029    public class ProductionNode implements EbnfNode {
030        public final IdentifierNode id;
031        public final EbnfNode expression;
032    
033        public ProductionNode(
034            IdentifierNode id,
035            EbnfNode expression)
036        {
037            this.id = id;
038            this.expression = expression;
039        }
040    
041        public void toString(StringBuilder buf) {
042            id.toString(buf);
043            buf.append(" = ");
044            expression.toString(buf);
045        }
046    }
047    
048    // End ProductionNode.java