13. A computer-readable medium that is not a transitory propagating signal, the computer-readable medium including instructions, which when executed by the computer, cause the computer to perform operations comprising: converting a quantification into an automaton, wherein converting includes unrolling the quantification to control an out-degree of the automaton; and converting the automaton into machine code corresponding to a target device.
13. A computer-readable medium that is not a transitory propagating signal, the computer-readable medium including instructions, which when executed by the computer, cause the computer to perform operations comprising: converting a quantification into an automaton, wherein converting includes unrolling the quantification to control an out-degree of the automaton; and converting the automaton into machine code corresponding to a target device. 16. The computer-readable medium of claim 13 , wherein converting includes, when a repeated expression for the quantification is nullable, unrolling the quantification as a quantification having a non-nullable form of the repeated expression that can be matched zero times.