text: class LaMarkSyntaxError(Exception):
      """Raised when a syntax error is encountered in a LaMark file
      """
      def __init__(self, msg, lineno=None):
          """msg: Error message
          lineno: Line number syntax error occurs on
          """
          self.msg = msg
          self.lineno = lineno
  
      def __str__(self):
          if self.lineno:
              return "Syntax Error on line %d: %s" % (int(self.lineno),
                      str(self.msg))
          return "Syntax Error: %s" % str(self.msg)
  
      def __repr__(self):
          return self.__str__()
  