ch18.024_best

Perl Best Practices the source code

##############################################################################
##   Code fragment (Recommended) from Chapter 18 of "Perl Best Practices"   ##
##     Copyright (c) O'Reilly & Associates, 2005. All Rights Reserved.      ##
##  See: http://www.oreilly.com/pub/a/oreilly/ask_tim/2001/codepolicy.html  ##
##############################################################################


# Standard modules...
use strict;
use warnings;
use IO::Prompt;
use Carp;
use English qw( -no_match_vars );
use Data::Alias;
use Readonly;


use Digest::SHA qw( sha512_base64 );
 
# use Sub::Tracking ;
# track_sub('sha512_base64');
 
# and later...
 
my $original_text = 'Now is the winter of our discontent...';

my $text_key 
    = sha512_base64($original_text);  # Use of subroutine automatically logged

use Data::Dumper 'Dumper';
warn Dumper [ $text_key ];