Discussion
A table driven scanner stores
Answer: D
Correct answer: the transition function of the automaton as a two dimensional array
A table-driven scanner keeps the automaton as a table indexed by current state and input character, whose entry is the next state. The driver is then a short loop: look up, move, repeat. The approach separates the automaton from the code that runs it, which is why generated scanners take this form and why table compression matters.
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