Dear Monks, why would I need to check for the length of the string? Is it not enough to check for the "definedness"? 

use strict;
use warnings;

my $dir = '/etc';

while (1) {
    print "Enter pattern> ";
    chomp( my $pattern = <STDIN> );
    ## I'm talking about this line
    last unless defined $pattern and length $pattern;
    my @matched = eval {
        grep { /$pattern/ } glob "$dir/*";
    };  
    print "Error: $@" if $@; 
    print map { "$_\n" } @matched;
}

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And like that ... he's gone. -- Verbal

In reply to Can a defined value be of zero length? by reisinge

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