/* Modified by KLM to save the position and error char */
/* Modified once more to remove error messages generation */
/* I don't need to neither recover nor declare all characters as tokens,
nor have a lexical error for 'c<EOF> */
package gnu.jel.generated;

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;

  /**
   * These added by KLM.
   */
  public int col;
  public char encountered;
  public boolean isEOF;

//     /**
//      * 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.
//      */
//     private static final 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();
//     }

   /*
    * 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);
      this(null, reason);
      col=errorColumn; encountered=curChar; isEOF=EOFSeen;
   }
}
