Abstract: A computer-implemented method, computer-readable medium, and a system for building a 3D interactive environment are disclosed. In one aspect, the computer includes a processor and a memory coupled to the processor. According to the method, the processor generates first and second 3D virtual spaces. A portal graphics engine links the first and second 3D virtual spaces using a portal. The portal causes the first and second 3D virtual spaces to interact as a single, continuous zone.

Abstract: An editing system operable for automatically detecting and correcting multi-word data entry errors. A standard list including a plurality of source-target pairs is provided as an integral part of an editing program suitable of operation on a conventional personal computer. Each source term is a common multi word data entry error, and each target term is a correction for a corresponding source term. Each user may create a customized substitution list by adding user-defined source-target pairs to the list, and deleting source-target pairs from the list. In addition to correcting common multi-word spelling and grammatical errors, the substitution list may be used to perform other functions such as substituting a symbol for a multi-word alias typed with a standard keyboard. The substitution list may optionally be implemented in connection with an "AUTOCORRECT" engine that implements multi word substitutions as they are typed by a user.

Abstract: A method for interactively formatting a document while the user types. The method includes analyzing characters typed by the user to detect predefined characters or contiguous strings of characters. If such predefined characters are detected, then applying autoformat rules dependent on the predefined characters, and their proximity to other predefined characters. The evaluation of the autoformat rules can generate formatting edits that are automatically applied to the document as the user types.

Abstract: A method for interactively formatting a document uses event-based rules to trigger auto-formatting actions as the user types. An event monitor intercepts user input events such as the typing of characters on the keyboard to detect predefined events. In response to these predefined events, a rule-based event engine schedules rules dependent on the events in event interval sections of a rule base. The event engine evaluates rules scheduled in an event interface section of the rule base when an event interval occurs. When a rule is evaluated, further rules can be scheduled for evaluation in the same event interval section or other interval sections. A special type of rule, called an action rule, can generate autoformat actions when it is evaluated. When an action rule is evaluated and is satisfied, the event engine places the action or actions associated with the action rule in a queue. The event monitor then invokes actions in the queue to automatically format the document as the user types.

Abstract: A method for interactively correcting text and providing user guidance includes monitoring user input to identify predefined events. In response to identifying predefined events, the predefined events in a rule-base are scheduled for evaluation. Evaluation of events causes dependent events and rules to be scheduled. Evaluation of a rule includes determining whether the conditions for the rule are satisfied, and if so, scheduling further events or rules dependent on the rule, or triggering actions to automatically correct text or display helpful tips to the user.