Es ::= e+
es ::= e+/ws
+
conjuncts ::= rewrite
| rewrite ^"&" sequence /ws
| rewrite ^"&~" sequence /ws
| [(][)] => "epsilon"
| ^"{" alternatives "}" /ws
| "[" [\~]? range* "]" => "range"
- | e ^"*/" e /ws
| e ^"+/" e /ws
+ | e ^"%%" e /ws
+ | e ^"$$" e /ws
| e ^"?" /ws
| e ^"~/~" /ws