or download this
Benchmark: timing 10000 iterations of regex-em, split-em...
regex-em: 2 wallclock secs ( 3.64 usr + 0.00 sys = 3.64 CPU)
...
Benchmark: timing 10000 iterations of regex-em, split-em...
regex-em: 3 wallclock secs ( 4.03 usr + 0.00 sys = 4.03 CPU)
split-em: 3 wallclock secs ( 3.76 usr + 0.00 sys = 3.76 CPU)