ch09.019_best

来自「Perl Best Practices the source code」· 019_BEST 代码 · 共 34 行

##############################################################################
##   Code fragment (Recommended) from Chapter 9 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;


# Trim some text and put a "box" around it...
sub boxed {
    my ($text) = @_;
 
    $text =~ s{\A \s+ | \s+ \z}{}gxms;
    return "[$text]";
}



my $text = 'hi there';
print boxed($text), "\n";
use Data::Dumper 'Dumper';
warn Dumper [ $text ];

print boxed('hi there'), "\n";