ch06.035_prob

来自「Perl Best Practices the source code」· 035_PROB 代码 · 共 33 行

##############################################################################
## Code fragment (NOT 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',
);

for my $translated_word (values %translation_for) {
   if ( $translated_word =~ m/ $PROFANITY /xms) {
       delete $translated_word;                    # Compile-time error
   } 
}

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