When a state machine implementation enters this state, it may produce a side
effect with the previous state. For example, if the previous state is
Inputting, and an implementation enters Empty, the implementation may commit
whatever is in Inputting to the input method context.
Empty state, the ground state of a state machine.
When a state machine implementation enters this state, it may produce a side effect with the previous state. For example, if the previous state is Inputting, and an implementation enters Empty, the implementation may commit whatever is in Inputting to the input method context.