If readability and/or maintanability is of concern, it might be of help to rephrase the code somewhat like this:
 
sub extract_and_add {
    my ($colon_sep_string, $extra_elem) = @_;

    my ($first, $second, $third, $ignore) = split( /:/, $colon_sep_str
+ing );

    return join('-', $second, $third, $extra_elem);

}

[download]
Meaningful sub and variable names are really easy to set once you get into the habit - and the extra time you'll take for that will return tenfold to you in the nearest future.

Not to mention the gratitude of the first person after you that will have to look on the code without being forced to hold on breathing for a second to concentrate on "what exactly is meant here...?!"

Hth.

In reply to Re: split slice? by Krambambuli
in thread split slice? by convenientstore

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