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/*
 * Copyright © 2021-present Arcade Data Ltd ([email protected])
 *
 * Licensed 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.
 *
 * SPDX-FileCopyrightText: 2021-present Arcade Data Ltd ([email protected])
 * SPDX-License-Identifier: Apache-2.0
 */
/* Generated by: ParserGeneratorCC: Do not edit this line. TokenMgrException.java Version 1.1 */
/* ParserGeneratorCCOptions: */
package com.arcadedb.query.sql.parser;

/**
 * Token Manager Error.
 */
public class TokenMgrException extends RuntimeException {

  /**
   * The version identifier for this Serializable class.
   * Increment only if the serialized form of the
   * class changes.
   */
  private static final long serialVersionUID = 1L;

  /*
   * Ordinals for various reasons why an Error of this type can be thrown.
   */

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

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

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

  /**
   * Detected (and bailed out of) an infinite loop in the token manager.
   */
  public 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
   */
  protected static final String addEscapes(final String str) {
    final StringBuilder retval = new StringBuilder();
    for (int i = 0; i < str.length(); i++) {
      final char ch = str.charAt(i);
      switch (ch) {
      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 < 0x20 || ch > 0x7e) {
          final String s = "0000" + Integer.toString(ch, 16);
          retval.append("\\u").append(s.substring(s.length() - 4));
        } else {
          retval.append(ch);
        }
      }
    }
    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 lexical error
   * curLexState : lexical state in which this error occurred
   * errorLine   : line number when the error occurred
   * errorColumn : column number when the error occurred
   * errorAfter  : prefix that was seen before this error occurred
   * curchar     : the offending character
   * Note: You can customize the lexical error message by modifying this method.
   */
  protected static String LexicalErr(final boolean EOFSeen, final int lexState, final int errorLine, final int errorColumn, final String errorAfter,
      final int curChar) {
    final char curChar1 = (char) curChar;
    return ("Lexical error at line " + errorLine + ", column " + errorColumn + ".  Encountered: " + (EOFSeen ?
        " " :
        ("\"" + addEscapes(String.valueOf(curChar1)) + "\"") + " (" + 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.
   */

  /**
   * No arg constructor.
   */
  public TokenMgrException() {
  }

  /**
   * Constructor with message and reason.
   */
  public TokenMgrException(final String message, final int reason) {
    super(message);
    errorCode = reason;
  }

  /**
   * Full Constructor.
   */
  public TokenMgrException(final boolean EOFSeen, final int lexState, final int errorLine, final int errorColumn, final String errorAfter, final int curChar,
      final int reason) {
    this(LexicalErr(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);
  }
}
/* ParserGeneratorCC - OriginalChecksum=7c0abf2210691a16f05042670750a96d (do not edit this line) */