/* * ParserLogException.cs * * This work 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 work 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. * * Copyright (c) 2003 Per Cederberg. All rights reserved. */ using System; using System.Collections; using System.Text; namespace PerCederberg.Grammatica.Parser { /** * A parser log exception. This class contains a list of all the parse * errors encountered while parsing. * * @author Per Cederberg, <per at percederberg dot net> * @version 1.1 * @since 1.1 */ public class ParserLogException : Exception { /** * The list of errors found. */ private ArrayList errors = new ArrayList(); /** * Creates a new empty parser log exception. */ public ParserLogException() { } /** * The message property. This property contains the detailed * exception error message. */ public override string Message { get{ return GetMessage(); } } /** * Returns the number of errors in this log. * * @return the number of errors in this log */ public int GetErrorCount() { return errors.Count; } /** * Returns a specific error from the log. * * @param index the error index, 0 <= index < count * * @return the parse error requested */ public ParseException GetError(int index) { return (ParseException) errors[index]; } /** * Adds a parse error to the log. * * @param e the parse error to add */ public void AddError(ParseException e) { errors.Add(e); } /** * Returns the detailed error message. This message will contain * the error messages from all errors in this log, separated by * a newline. * * @return the detailed error message */ public string GetMessage() { StringBuilder buffer = new StringBuilder(); for (int i = 0; i < GetErrorCount(); i++) { if (i > 0) { buffer.Append("\n"); } buffer.Append(GetError(i).GetMessage()); } return buffer.ToString(); } } }