// A temporary (out of date) grammar file

Grammar   ::= Expr*
Expr            ::= Boolean 
                    | Func 
                    | Vector 
                    | List 
                    | Ident
                    | Dictionary 
                    | StringLiteral 
                    | FuncCall
Boolean     ::= "true" | "false"
Func           ::= "(" Vector Expr ")"
Vector        ::= "[" Expr+ "]"
List             ::= "(" Expr+ ")"
Ident          ::= [a-zA-Z]
FuncCall    ::= "(" Ident* ")"
Dictionary ::= "{" (Ident+ ":" Expr ","+)+ "}"
StringLiteral ::= '"' [^"]* '"' | "'" [^']* "'"