s = ws! Grammar ws!
-Grammar = NonTerminal +/ ws
+Grammar = Declaration +/ ws
+
+Declaration = NonTerminal
+ | ^"#import" ws! FileName //(ws! "as" ws! Prefix)?
+
+//Prefix = ([a-zA-Z] ".")+ "*"
+FileName = FileNameChar+ -> [\r\n ]
+FileNameChar = Space:: "\\ "
+ | ~[\r\n ]
NonTerminal = Word "=" RHS /ws
| Word "*" ws! ^"=" ws! RHS