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$widget->optionAdd(pattern=>value ?, priority?);
The optionAdd method adds a new option to the database. Pattern contains the option being specified, and consists of names and/or classes separated by asterisks or dots, in the usual X format. Value contains a text string to associate with pattern; this is the value that will be returned in calls to the optionGet method. If priority is specified, it indicates the priority level for this option (see below for legal values); it defaults to interactive. This method always returns an empty string.