Benchmark: running Regex, Unpack, each for at least 10 CPU seconds...
     Regex:  9 wallclock secs (10.44 usr +  0.00 sys = 0.44 CPU) @ 19859.10/s (n=207329)
    Unpack: 11 wallclock secs (10.17 usr +  0.00 sys = 0.17 CPU) @ 33312.29/s (n=338786)