You just need to capture the output of the regexp match, which Perl makes available in $1.

See Extracting matches.

(Update: added link to docs)

#!/usr/bin/perl
use strict;
use warnings;

my $book= "^\\s\*book ref \#";
my $book_res = $book =~ "/^\\s\*owner \#/";

my $title = "^\\s\*title ";
my $title_res = $title =~ "/^\\s\*title /";

my %keepers;

foreach (<DATA>) {
  #next unless /$book|$title/ip;
  chomp;

  if ( /($book|$title)/ip ) {
    $keepers{ $_ } = $1;
  }
   #print ;
}

# here i would like to access the regex matches as scalers

for (keys %keepers ) {
  print "Here's your scalar: <<$_>> has value <<$keepers{ $_ }>>\n";
}

__DATA__

Book ref #4346
Lent: Sun Jul 12 03:26:43 BST 2015
status Lent
Description: classic
title blah blah blah
last used: 2
color red
Pages 238
Publisher Bca
Type Hardback
Location: N/a
Author R jones

[download]
Remember: Ne dederis in spiritu molere illegitimi!

In reply to Re: Perl store as variables regex matches for use outside of loop. by 1nickt
in thread Perl store as variables regex matches for use outside of loop. by john.tm

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.