maven-javascript-plugin/src/main/java/org/apache/myfaces/trinidadbuild/plugin/javascript/javascript20parser/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 */
package org.apache.myfaces.trinidadbuild.plugin.javascript.javascript20parser;

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

  /**
   * Lexical error occured.
   */
  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;

  /*
   * Constructors of various flavors follow.
   */

  public TokenMgrError()
  {
  }

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

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

  /**
   * Replaces unprintable characters by their espaced (or unicode escaped)
   * equivalents in the given string
   */
  protected static final String addEscapes(String str)
  {
    StringBuffer retval = new StringBuffer();
    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))
        {
          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.
   * 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.
   */
  protected static String LexicalError(boolean EOFSeen, int lexState,
                                       int errorLine, int errorColumn,
                                       String errorAfter, 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.
   */
  public String getMessage()
  {
    return super.getMessage();
  }
}