Your sort can be faster if you move the substr out of the sort routine and into a map, then peice it back together afterword. This is known as the "Schwartzian Transform":

my @data = 
    map   { $_->[1] }
    sort  { $a->[0] <=> $b->[0] } 
    map   { [ substr($_,1), $_ ] } @tempArray;

[download]

Or, since your data is a simple string, it shouldn't be too much of a problem to modify that string in the first map (counting in the order of execution) and thus eliminate the need for the middle sort block (which is called the GMT GRT (thanks Abigail-II)):

my @data = 
    map  { s/\A (.*)(.) \z/$2$1/x }
    sort 
    map  { s/\A (.)(.*) \z/$2$1/x } @tempArray;

[download]

Using perl's internal sort should be faster than making it continually call a custom block.

----
I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident.
-- Schemer

: () { :|:& };:

Note: All code is untested, unless otherwise stated

In reply to Re: Sorting a subset by hardburn
in thread Sorting a subset by seaver

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.