1 s ::= ws grammar ws => "gram"
3 grammar ::= R+/ws => "grammar"
4 Grammar ::= R+ => "grammar"
5 R ::= word ^"::=" Alternatives
6 | word ^"!::=" Alternatives
8 ec ::= [~\]\\\-\~] | escaped
10 Alternatives ::= EquiAlt +/ ">"
11 EquiAlt ::= Conjuncts +/ "|" => "alternatives"
19 | rewrite ^"&" sequence
20 | rewrite ^"&~" sequence
22 rewrite ::= sequence /ws => "rewrite"
23 | sequence ^"=>" word /ws
24 | sequence ^"=>" quoted /ws
25 | sequence "=>" "()" /ws => "wrap"
27 range ::= ec => "range0" | ec ^"-" ec => "range0"
28 E ::= word => "nonTerminalY"
30 | ^"{" Alternatives "}"
31 | "[" [\~]? range* "]" => "range"
40 | "^" quoted => "care"
49 > ^"(" Alternatives ")"
56 word ::= an++ => "sify"
57 quoted ::= "\"" ([~\"\\] | escaped)* "\"" => "sify"
58 escaped ::= "\\n" => "\n"