Don't use s/^\s+|\s+$//g. It tries BOTH branches at EVERY chunk of whitespace. It's awfully slow compared to s/^\s+//, s/\s+$//.
Jeff japhy Pinyan, P.L., P.M., P.O.D, X.S.: Perl, regex, and perl hacker
How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart

In reply to Re^2: A perverse use of grep by japhy
in thread A perverse use of grep by eyepopslikeamosquito

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