ERRATA FOR
		 "GENERATING REWRITABLE ABSTRACT SYNTAX TREES" 
			       OVERBEY & JOHNSON

			   Last Updated: 22 Jan 2010

p. 9:
    The phrase "exponentiation (right-associative)" should be changed to
    "exponentiation (left-associative)" to correctly describe the grammar
    beginning on p. 8.  Since exponentiation is usually not left-associative,
    the grammar could be modified to make exponentiation right-associative by
    changing line (5) to
		      <factor> ::= <primary> EXP <factor>
    and adjusting the annotations accordingly.