ch06.036_best

Perl Best Practices the source code

##############################################################################
##   Code fragment (Recommended) from Chapter 6 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;

Readonly my $PROFANITY => qr/\A (?: gosh | darn) \z/xms;

my %translation_for = (
    'shoot'   => 'gosh',
    'gosh'    => 'darn',
    'jeepers' => 'shoot',
);


my @unacceptable_words 
    = grep {$translation_for{$_} =~ m/ $PROFANITY /xms} 
           keys %translation_for;
 
delete @translation_for{@unacceptable_words};

use Data::Dumper 'Dumper';
warn Dumper [ \%translation_for ];