<> <> <> <> <<>> DIRECTORY Express USING [ClientProcList, Symbols], ExpressToken USING [TokenStream], ExpressTree USING [XTree]; ExpressParser: CEDAR DEFINITIONS ~ { ClientProcList: TYPE ~ Express.ClientProcList; Symbols: TYPE ~ Express.Symbols; TokenStream: TYPE ~ ExpressToken.TokenStream; XTree: TYPE ~ ExpressTree.XTree; ParseExpression: PROC [ts: TokenStream, symbols: Symbols, cProcs: ClientProcList _ NIL] RETURNS [exp: XTree]; <> <<>> }.