http://www.perlmonks.org?node_id=1201117


in reply to $1[

You are using a screwdriver to stab someone. While that is also deadly, the right tool makes a much cleaner cut: 
$_ =~ tr/()/[]/;

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holli

You can lead your users to water, but alas, you cannot drown them.

In Section Seekers of Perl Wisdom