| rewrite ^"&" e*/ws /ws
| rewrite ^"&~" e*/ws /ws
-rewrite ::= sequence /ws => "rewrite"
- | sequence ^"=>" word /ws
- | sequence ^"=>" quoted /ws
+rewrite ::= sequence /ws => "rewrite"
+ | sequence ^"=>" (word|quoted) /ws
ec ::= [~\-\]\\\~]
| escaped