s ::= w* Grammar w* => "gram"
Grammar ::= R+ => "grammar"
-R ::= word ^"::=" Class+/gt
- | word ^"!::=" Class+/gt
+R ::= word ^"::=" Class+/">"
+ | word ^"!::=" Class+/">"
ec ::= [~\]\\\-\~] | escaped
| E+ "=>" "()" => "wrap"
range ::= ec => "range0" | ec ^"-" ec => "range0"
-gt !::= ">"
-bar !::= "|"
E ::= word => "nonTerminalY"
| [(][)] => "epsilon"
- | ^"{" Class+/gt "}"
+ | ^"{" Class+/">" "}"
| "[" [\~]? range* "]" => "range"
| E ^"*/" E
| E ^"+/" E
| (E ^"++" > E ^"+")
| "(" word ^")"
- > ^"(" Class+/gt ")"
+ > ^"(" Class+/">" ")"
w !::= " "
| "//" [~\n]* "\n"