my $paragraphs = 1 + (() = $_content_to_add =~ m/(?:\r?\n)+/g);

##</code><code>##

my $paragraphs = 1 + $_content_to_add =~ s!(?:\r?\n)+!</p>\n<p>!g;
$_content_to_add = "<p>$_content_to_add</p>";