I'd write that as: 
use Readonly;
Readonly my $LOW  =>  9;
Readonly my $HIGH => 14;
...
my $count = $some_variable eq 'x' ? $HIGH : $LOW;
for $i (0 .. $count) {
    ...
}

[download]
Or 
use Readonly;
Readonly my %VALUES => (x => 14, y => 9);
...
for $i (0 .. $VALUE{$some_variable}) {
    ...
}

[download]
a bit depending on whether you need $count elsewhere, and what 9, 14, $some_variable, 'x', 'y' actually stand for.

The main drive of programming it this way is that I strongly dislike 'magical' literals (specially numbers) in the middle of the code. Unless I know the bigger picture, I can't see what the 9 and 14 stand for. Nor do I know whether their values can be changed without having to change the value elsewhere in the program as well. Defining them as constants helps solving this problem.

In reply to Re: Style: buried variables or double referencing? by Anonymous Monk
in thread Style: buried variables or double referencing? by punch_card_don

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.