package rebelsky.compiler.misc;

/**
 * Symbols used in lexing and parsing.  That is, the superclass of
 * both terminals and nonterminals.
 *
 * @author Samuel A. Rebelsky
 * @version 1.0 of October 2002
 */
public interface Symbol
{
  /**
   * Convert the symbol to a string (e.g., for printing).  
   */
  public String toString();
} // interface Symbol