Thanks for your answer, this helps a lot.

Now, what if there is no shift:

$buff .= $_ for "\n", '  ' x ( $level - 1), @pre_push;

I would expect every element in @pre_push to have a newline and spaces in front of it, but when I test it, using the following code, I see that the newline and spaces are only added once.

my @pre_push;
my $level = 2;
my $buff = '';

push (@pre_push, "test");
push (@pre_push, "test2");

for my $string ("\n", '  ' x ( $level - 1 ), @pre_push) {
    $buff = $buff . $string;
}
print $buff;

[download]

Output:

  testtest2

In reply to Re^2: How do I read this line of code? by Anonymous Monk
in thread How do I read this line of code? by pmarcoen

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.