[Chicago-talk] Removing "." from a string?
Steven Lembark
lembark at wrkhors.com
Thu Jan 31 12:14:06 PST 2008
Richard Reina wrote:
> Does anyone know an easy way to remove "."s from a string like
> 192.168.2.16
>
> so I get 192168216? Substring seems cumbersome and does not account for
> length between dots.
>
> Thanks for any help.
Here are four progessively more ridiculous solutions:
$dotted_quad =~ s/\D//g;
my $digits = join '', split /\D+/, $dotted_quad;
my $digits = join '', $dotted_quad =~ m{ (\d+) }gx;
while( ( my $i = index $dotted_quad, '.' ) > 0 )
{
substr $dotted_quad, $i, 1, '';
}
though the last one may actually be the fastest
due to the lack of recursion and extra data
structures.
--
Steven Lembark +1 888 359 3508
Workhorse Computing 85-09 90th St
lembark at wrkhors.com Woodhaven, NY 11421
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