s ::= ws grammar ws => "gram"
ws !::= w**
-grammar ::= r $$ ws => "grammar"
+grammar ::= r +/ ws => "grammar"
r ::= word ^"::=" alternatives /ws
| word ^"!::=" alternatives /ws
-alternatives ::= equiAlt $$ (ws ">" ws)
-equiAlt ::= conjuncts $$ (ws "|" ws) => "alternatives"
+alternatives ::= equiAlt +/ (ws ">" ws)
+equiAlt ::= conjuncts +/ (ws "|" ws) => "alternatives"
sequence ::= es
> es ws ^"/" e
-es ::= e %% (w**)
+es ::= e */ (w**)
ss ::= es | es ^"/" e /ws
conjuncts ::= rewrite
- | rewrite ^"&" e%%ws /ws
- | rewrite ^"&~" e%%ws /ws
+ | rewrite ^"&" e*/ws /ws
+ | rewrite ^"&~" e*/ws /ws
rewrite ::= sequence /ws => "rewrite"
| sequence ^"=>" word /ws
| ^"{" alternatives "}" /ws
| "[" (range*) "]" => "range"
| "[~" (range*) "]" => "rangex"
- | e ^"%%" e /ws
- | e ^"$$" e /ws
+ | e ^"+/" e /ws
+ | e ^"*/" e /ws
| e ^"?" /ws
| e ^"~/~" /ws