TokenMgrError.cs

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/* 
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* Generated By:JavaCC: Do not edit this line. TokenMgrError.java Version 3.0 */

using System;

namespace Lucene.Net.Demo.Html
{
    
    [Serializable]
    public class TokenMgrError:System.ApplicationException
    {
        /// <summary> You can also modify the body of this method to customize your error messages.
        /// For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE are not
        /// of end-users concern, so you can return something like : 
        /// 
        /// "Internal Error : Please file a bug report .... "
        /// 
        /// from this method for such cases in the release version of your parser.
        /// </summary>
        public override System.String Message
        {
            get
            {
                return base.Message;
            }
            
        }
        /*
        * Ordinals for various reasons why an Error of this type can be thrown.
        */
        
        /// <summary> Lexical error occured.</summary>
        internal const int LEXICAL_ERROR = 0;
        
        /// <summary> An attempt wass made to create a second instance of a static token manager.</summary>
        internal const int STATIC_LEXER_ERROR = 1;
        
        /// <summary> Tried to change to an invalid lexical state.</summary>
        internal const int INVALID_LEXICAL_STATE = 2;
        
        /// <summary> Detected (and bailed out of) an infinite loop in the token manager.</summary>
        internal const int LOOP_DETECTED = 3;
        
        /// <summary> Indicates the reason why the exception is thrown. It will have
        /// one of the above 4 values.
        /// </summary>
        internal int errorCode;
        
        /// <summary> Replaces unprintable characters by their espaced (or unicode escaped)
        /// equivalents in the given string
        /// </summary>
        protected internal static System.String addEscapes(System.String str)
        {
            System.Text.StringBuilder retval = new System.Text.StringBuilder();
            char ch;
            for (int i = 0; i < str.Length; i++)
            {
                switch (str[i])
                {
                    
                    case (char) (0): 
                        continue;
                    
                    case '\b': 
                        retval.Append("\\b");
                        continue;
                    
                    case '\t': 
                        retval.Append("\\t");
                        continue;
                    
                    case '\n': 
                        retval.Append("\\n");
                        continue;
                    
                    case '\f': 
                        retval.Append("\\f");
                        continue;
                    
                    case '\r': 
                        retval.Append("\\r");
                        continue;
                    
                    case '\"': 
                        retval.Append("\\\"");
                        continue;
                    
                    case '\'': 
                        retval.Append("\\\'");
                        continue;
                    
                    case '\\': 
                        retval.Append("\\\\");
                        continue;
                    
                    default: 
                        if ((ch = str[i]) < 0x20 || ch > 0x7e)
                        {
                            System.String s = "0000" + System.Convert.ToString(ch, 16);
                            retval.Append("\\u" + s.Substring(s.Length - 4, (s.Length) - (s.Length - 4)));
                        }
                        else
                        {
                            retval.Append(ch);
                        }
                        continue;
                    
                }
            }
            return retval.ToString();
        }
        
        /// <summary> Returns a detailed message for the Error when it is thrown by the
        /// token manager to indicate a lexical error.
        /// Parameters : 
        /// EOFSeen     : indicates if EOF caused the lexicl error
        /// curLexState : lexical state in which this error occured
        /// errorLine   : line number when the error occured
        /// errorColumn : column number when the error occured
        /// errorAfter  : prefix that was seen before this error occured
        /// curchar     : the offending character
        /// Note: You can customize the lexical error message by modifying this method.
        /// </summary>
        protected internal static System.String LexicalError(bool EOFSeen, int lexState, int errorLine, int errorColumn, System.String errorAfter, char curChar)
        {
            return ("Lexical error at line " + errorLine + ", column " + errorColumn + ".  Encountered: " + (EOFSeen?"<EOF> ":("\"" + addEscapes(System.Convert.ToString(curChar)) + "\"") + " (" + (int) curChar + "), ") + "after : \"" + addEscapes(errorAfter) + "\"");
        }
        
        /*
        * Constructors of various flavors follow.
        */
        
        public TokenMgrError()
        {
        }
        
        public TokenMgrError(System.String message, int reason):base(message)
        {
            errorCode = reason;
        }
        
        public TokenMgrError(bool EOFSeen, int lexState, int errorLine, int errorColumn, System.String errorAfter, char curChar, int reason):this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason)
        {
        }
    }
}