Yeah, I thought about a loop, but I was afraid it would obscure what the code is doing - I'd certainly switch to a loop if doing more than 3 or four repetitions, and if I were doing more than two statements per offset, but at less than that the loop syntax just clutters things up. (I realize that this is a matter of personal taste, and I might change my answer depending on my mood).

Good point about using length - again, I think my way is clearer, but I'm not sure whether that's the use of length or the ->. (which you could drop)

By the way, I would have written the first line of your loop as: 

    $triplets{$_} = [unpack("x$_ (a3)*", $line)];

[download]
But that's only because I don't like using @{$unusedvarref} to auto-vivify. 
--
@/=map{[/./g]}qw/.h_nJ Xapou cets krht ele_ r_ra/;
map{y/X_/\n /;print}map{pop@$_}@/for@/

[download]

In reply to Re^3: variation on splitting a string into elements of an array by fizbin
in thread splitting a sequence using unpack by Rashmun

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.