ch02.070_best

来自「Perl Best Practices the source code」· 070_BEST 代码 · 共 33 行

##############################################################################
##   Code fragment (Recommended) from Chapter 2 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 $EMPTY_STR => q{};

for my $name ('Jan', 'Dame Joan', 'Sascha Kirkov, Ph.D') {


             # When their name is...                    Address them as...
my $salute = $name eq $EMPTY_STR                      ? 'Customer'
           : $name =~ m/\A((?:Sir|Dame) \s+ \S+) /xms ? $1
           : $name =~ m/(.*), \s+ Ph[.]?D \z     /xms ? "Dr $1"
           :                                            $name
           ;


    use Data::Dumper 'Dumper';
    warn Dumper [ $salute ];
}