2.2.2.2.16 URL-Directory

Provides the name and metadata associated with a given URL.

 URL-DIRECTORY = OBRACKET "url" VALSEP URL-STRING ARGSEP "meta_info"
    VALSEP METADICT CBRACKET
 VECTOR-URL-DIRECTORY = OBRACKET STARTLIST 1*(URL-DIRECTORY LISTSEP) CBRACKET