International Business Machines Corporation

John Eugene Parsons, Jr

Steven M Hancock

Bradley Dale Noe

David William Killian

Martin J Paulat, Jr

A logical device that is coupled to a computer can be controlled using string commands. The logical device requires flags and a data structure to operate properly. A string command with tokens for operating a specific logical device is provided. A linked list of the tokens is created. A command table for the specified logical device is found. The command table contains possible commands for the logical device, which commands are able to provide the required flags and data structure for the logical device. Each command in the command table contains key words or tokens or multiword tokens. The command table tokens are parsed, one at a time, against the command string tokens. If no match between the command table token and a command string token occurs, then the next command table token is parsed against the command string tokens. If a match between a command table token and a command string token occurs, then the flag that is associated with the command string token is provided and data from either the command string token or the command table token is inserted into the data structure in its proper place.

String command parser for message based systems

Multimedia data objects in memory need not be processed serially from beginning to end but may instead be defined as algorithmically generated data streams. This functionality is provided through an architected application programming interface with a mechanism for defining a method of composing a complex object from smaller objects, for defining a behavior for the complex object, and for allowing that behavior to be varied based on external events.

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Boca Raton, FL, United States of America

John Eugene Parsons, Jr