Rather than creating a compare function, I'd create a sort key generation function, and use the map sort map (Schwartzian transform) or the Guttman/Rossler method - (warning: untested, and if your 'any string' clauses contain two digits, then your hosed unless you come up with more constraints):

# You may want to wrap '\Q' and '\E' around each of $str1 and $str2
my $re = qr/^.*(\d\d).*_($str1|$str2)$/;

my @sorted = map { $_->[0] }
 sort { $a->[1] cmp $b->[1] }
 map { [ $_, sort_key($_, $re, $str1) ] } @list;

sub sort_key {
 my ($str, $re, $str1) = @_;
 my ($rule1, $rule2, $rule3) = ("1","00","1");
 if ($str =~ $re) {
  $rule3 = "0";
  my ($num, $s) = ($1, $2);
  $rule1 = "0" if $s eq $str1;
  $rule2 = sprintf("%2d", 99-$num);
 }
 return "$rule3$rule1$rule2$str";
}

[download]

In reply to Re: Re: Rule-based sorting by runrig
in thread Rule-based sorting by DeusVult

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.