equiAlt ::= conjuncts $$ (ws "|" ws) => "alternatives"
sequence ::= es
- > Es ws ^"/" e
-Es ::= e %% (w**)
+ > es ws ^"/" e
es ::= e %% (w**)
ss ::= es | es ^"/" e /ws
| "[~" (range*) "]" => "rangex"
| e ^"%%" e /ws
| e ^"$$" e /ws
+ | e ^"+/" e /ws
+ | e ^"*/" e /ws
| e ^"?" /ws
| e ^"~/~" /ws