gistfile1.cs

wexpr   =>  expr(0) EOS

expr(L) =>  mexpr   expr2(L)

expr2(L)=>  L < 4   "+"   expr(4)   expr2(L)	
	=>  L < 4   "-"   expr(4)   expr2(L)	
	=>  L < 5   "*"   expr(5)   expr2(L)	
	=>  L < 5   "/"   expr(5)   expr2(L)	
	=>  L < 2   "<="  expr(2)   expr2(L)	
	=>  L < 2   ">="  expr(2)   expr2(L)	
	=>  L < 2   "<>"  expr(2)   expr2(L)	
	=>  L < 2   "="   expr(2)   expr2(L)	
	=>  L < 2   "<"   expr(2)   expr2(L)	
	=>  L < 2   ">"   expr(2)   expr2(L)	
	=>  L < 1   "AND" expr(1)   expr2(L)	
	=>  L < 1   "OR"  expr(1)   expr2(L)
	=>  NIL
      
mexpr   =>  "-"    expr(9)
	=>  "+"    expr(9)
	=>  "NOT"  expr(9)
	=>  "("    expr(0) ")"
	=>  "CASE" whexp "END"
	=>  NUMBER
	=>  ID      id2

whexp   =>  "WHEN" expr(0) "THEN" expr(0) whexp2

whexp2  =>  whexp
	=>  "ELSE" expr(0)
	=>  NIL

id2     =>  "(" list ")"
	=>  NIL

list    =>  expr(0)     list2
	=>  NIL

list2   =>  "," expr(0) list2
	=>  NIL