System and method for providing route guidance with a navigation application program

摘要: A route guidance program and method are disclosed. Maneuver data structures formed that include from a geographic database for each location along at which maneuvering instruction is to be provided. These maneuver used form list of tokens. token can either character string or symbol refers another item data, string, audio graphics data. Maneuvering instructions provided by explicating the tokens in Explicating done providing all contained referred order specified If explication includes token. symbol, The built combining sequences sequence structures. Each output application rules set respective structure. contents an structure symbols keys. Symbols included Keys refer corresponding expanded