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if (m/^(((ht|f)tp(s?))\://)?(www.|[a-zA-Z].)[a-zA-Z0-9\-\.]+\.(com|edu +|gov|m +il|net|org|biz|info|name|museum|us|ca|uk)(\:[0-9]+)*(/($|[a-zA-Z0-9\ +. ... my($host,$path) = ($4,$5); print "$host => $path\n"; }
if (m{ ^ ( # open capturing group 1 (was unbalanced) ... my($host,$path) = ($4,$5); print "$host => $path\n"; }