TokenMgrError.java

/*
 * 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 *
 *
 * !!!MODIFIED BY DMITRI PLOTNIKOV - DO NOT REGENERATE!!!
 */
package org.apache.commons.jxpath.ri.parser;

public class TokenMgrError extends Error
{
   /*
    * Ordinals for various reasons why an Error of this type can be thrown.
    */

   /**
     *
     */
    private static final long serialVersionUID = 1L;

/**
    * Lexical error occurred.
    */
   static final int LEXICAL_ERROR = 0;

   /**
    * An attempt wass made to create a second instance of a static token manager.
    */
   static final int STATIC_LEXER_ERROR = 1;

   /**
    * Tried to change to an invalid lexical state.
    */
   static final int INVALID_LEXICAL_STATE = 2;

   /**
    * Detected (and bailed out of) an infinite loop in the token manager.
    */
   static final int LOOP_DETECTED = 3;

   /**
    * Indicates the reason why the exception is thrown. It will have
    * one of the above 4 values.
    */
   int errorCode;

   /**
    * Replaces unprintable characters by their escaped (or Unicode escaped) equivalents in the given string
    *
    * @param str TODO
    * @return TODO
    */
   public static final String addEscapes(final String str) {
      final StringBuilder retval = new StringBuilder();
      char ch;
      for (int i = 0; i < str.length(); i++) {
        switch (str.charAt(i))
        {
           case 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.charAt(i)) < 0x20 || ch > 0x7e) {
                 final String s = "0000" + Integer.toString(ch, 16);
                 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
              } else {
                 retval.append(ch);
              }
              continue;
        }
      }
      return retval.toString();
   }

   /**
    * Returns a detailed message for the Error when it is thrown by the token manager to indicate a lexical error.
    *
    * Note: You can customize the lexical error message by modifying this method.
    *
    * @param EOFSeen     indicates if EOF caused the lexicl error
    * @param lexState    lexical state in which this error occurred
    * @param errorLine   line number when the error occurred
    * @param errorColumn column number when the error occurred
    * @param errorAfter  prefix that was seen before this error occurred
    * @param curChar     the offending character
    * @return TODO
    */
   protected static String LexicalError(final boolean EOFSeen, final int lexState, final int errorLine, final int errorColumn, final String errorAfter, final char curChar) {
      return "Lexical error at line " +
       errorLine + ", column " +
       errorColumn + ".  Encountered: " +
       (EOFSeen ? "<EOF> " : "\"" + addEscapes(String.valueOf(curChar)) + "\"" + " (" + (int)curChar + "), ") +
       "after : \"" + addEscapes(errorAfter) + "\"";
   }

   /**
    * 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.
    */
   @Override
public String getMessage() {
      return super.getMessage();
   }

   /*
    * Constructors of various flavors follow.
    */

   public TokenMgrError() {
   }

   public TokenMgrError(final String message, final int reason) {
      super(message);
      errorCode = reason;
   }

   public TokenMgrError(final boolean EOFSeen, final int lexState, final int errorLine, final int errorColumn, final String errorAfter, final char curChar, final int reason) {
      this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);

      // ADDED BY ME FROM THIS POINT TO THE EOF - DMITRI PLOTNIKOV
      position = errorColumn - 1;
      character = curChar;
   }


   private int position;
   private char character;


   public int getPosition(){
    return position;
   }

   public char getCharacter(){
    return character;
   }
}