Can someone tell me why rules and rules2 are not being bound by the use of scalar grep? Any help is appreciated.

CODE

 {
      my @DRIVER = Alzabo::Driver->available;
      my @RULE =   Alzabo::RDBMSRules->available;
      my $sg = (scalar grep { $p{rdbms} eq $_ } Alzabo::RDBMSRules->av
+ailable);
      warn Data::Dumper->Dump([\@DRIVER, \@RULE, $sg], [qw(DRIVER RULE
+ sg)] );
      my %has =
    (
     driver => grep { $p{rdbms} eq $_ } Alzabo::Driver->available,
     rules  => (scalar grep { $p{rdbms} eq $_ } Alzabo::RDBMSRules->av
+ailable)
     ? 'yes' : 'no',
     rules2 => (scalar grep { $p{rdbms} eq $_ } Alzabo::RDBMSRules->av
+ailable)
    );
      use Data::Dumper;
      die Dumper(\%has);

[download]

OUTPUT



        ~/hacks/gerbold/scripts $ perl s.pl
$DRIVER = [
            'Gerbold',
            'MySQL',
            'PostgreSQL'
          ];
$RULE = [
          'MySQL',
          'PostgreSQL'
        ];
$sg = 0;
$VAR1 = {
          'driver' => 'Gerbold'
        };
        ~/hacks/gerbold/scripts $

[download]
Carter's compass: I know I'm on the right track when by deleting something, I'm adding functionality

In reply to scalar grep not binding hash slots by princepawn

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.