I guess we can start by getting rid of the useless variable and shorten the silly pattern. 

my $split = join '/', split //, $id;
substr($split, -2, 2, '');
my $url = "$base_url/$split/$id/$id-h/$id-h.htm";

[download]

Two lines to calculate and one line to assemble. I don't think length is really a problem here. We're dealing with readability issues if we try to shorten it any more. These are just too complicated: 

substr( ( my $split = join '/', split //, $id ), -2, 2, '');
my $url = "$base_url/$split/$id/$id-h/$id-h.htm";

[download]
( my $url = join '/', split //, $id ) =~
    s{(.*)/}{$base_url/$1/$id/$id-h/$id-h.htm}s;

[download]

I'm partial to this *longer* version: 

my $url = join('/', 
    $base_url,
    $id =~ /(.)(?=.)/sg,
    $id,
    "$id-h",
    "$id-h.htm"
);

[download]

The flow is very simple, so it's easy to understand.

In reply to Re: A Better Guten Split by ikegami
in thread A Better Guten Split by hacker

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