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## O

O - Variable in class Automata.Automaton
  State Outputs.
Operator - Class in Token
Operator() - Constructor for class Token.Operator
optional() - Method in class dk.brics.automaton.Automaton
  See `BasicOperations.optional(Automaton)`.
optional(Automaton) - Static method in class dk.brics.automaton.BasicOperations
  Returns an automaton that accepts the union of the empty string and the language of the given automaton.
or(Automaton) - Method in class Automata.Automaton
overlap(Automaton) - Method in class dk.brics.automaton.Automaton
  See `SpecialOperations.overlap(Automaton, Automaton)`.
overlap(Automaton, Automaton) - Static method in class dk.brics.automaton.SpecialOperations
  Returns an automaton that accepts the overlap of strings that in more than one way can be split into a left part being accepted by `a1` and a right part being accepted by `a2`.

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