-s ::= !ws Grammar ws => "gram"
-Grammar ::= NonTerminal +/ ws => "grammar"
-NonTerminal ::= word ^"::=" RHS /ws
-
-RHS ::= (Conjuncts +/ (!ws "|" !ws)) +/ (!ws ">" !ws)
-
-Conjuncts ::= Sequence
- | Sequence ^"&" Elements /ws
- | Sequence ^"&~" Elements /ws
-Elements ::= e*/ws
-
-psy ::= Elements => "ps"
- | psy !wp ^"/" !ws e
-psx ::= psy => "psy"
- | psy ^"->" e /ws
-Sequence ::= Quoted => "qprod"
- > psx => "psx"
- | psx "=>" ^"[]" /ws
- | psx ^"=>" ("()"|word|Quoted) /ws
-
-ec ::= ~[\-\]\\]
+//funkanomitron
+s = ws Grammar ws
+
+Grammar:: = Declaration +/ ws
+
+Declaration = NonTerminal
+ | ^"#import" FileName /ws
+ | ^"#import" FileName "as" Word /ws
+
+FileName:: = (~[\r\n ] | escaped)+ -> [\r\n ]
+
+NonTerminal = NonTerminal:: Word ws "=" ws RHS
+ | DropNT:: Word "!" ws "=" ws RHS
+ | Colons:: Word "::" ws "=" ws RHS
+ | Word "*" ws ^"=" ws RHS
+ | Word "*/" Word ws ^"=" ws RHS
+
+RHS:: = ("|":: Sequence +/ (ws "|" ws)) +/ (ws (">" -> ~">") ws)
+
+Elements:: = e*/ws
+
+PreSequence = Elements
+ | (Quoted|Word) ^"::" PreSequence /ws
+ > PreSequence ^"/" e /ws
+ | PreSequence ^"->" e /ws
+
+Sequence = PreSequence
+ | Sequence ^"&" Elements /ws
+ | ^"~~" Elements /ws
+ | Sequence ^"&~" Elements /ws
+
+e = e ^"!"
+ > (Quoted|Word) ^":" e
+ > NonTerminalReference:: Word
+ | Literal:: Quoted
+ | ^"()"
+ | ^"{" PreSequence "}" /ws
+ | ^"[" Range* "]"
+ | e ^"++" /ws -> ~[/]
+ | e ^"+" /ws -> ~[+]
+ | e ^"++/" e /ws
+ | e ^"+/" e /ws
+ | e ^"**" /ws -> ~[/]
+ | e ^"*" /ws -> ~[*]
+ | e ^"**/" e /ws
+ | e ^"*/" e /ws
+ | e ^"?" /ws
+ | ^"^" Quoted
+ | ^"`" e
+ | ^"..."
+ | "(" Word ^")"
+ > ^"(" RHS ")" /ws
+ | "~":: ("~" -> ~"~")! e
+ | ^"\\{"
+ | ^"\\}"
+ | ^">>"
+ | ^"<<"
+
+Word:: = [.a-zA-Z0-9_]++ &~ "."+
+Quoted:: = "\"" (~[\"\\] | escaped)+ "\""
+ | "\"\""
+
+Range:: = ec
+ | ec "-" ec
+ | "<<":: [<][<]
+ | ">>":: [>][>]
+
+ec = ~[\-\]\\<>]
+ | [>] -> ~[>]
+ | [<] -> ~[<]