I have a small project I'm working on, and one hangup I've found is checking input against a known hash, in such a manner as to be case-insensitive. I'd like to get it so it will consider Foo, foo, and FOO to be equivalent. I can think of two ways to do this; one of them hard to code right and one of them hard to use right. 
 
#!/usr/bin/perl # Wasteful to use
use strict; use warnings;
my %known = ("foo" => "FOO", "bar" => "BAR", "baz" => "BAZ");
print "Talk to me, Goose.";
my $input = <STDIN>; chomp($input);
foreach my $maybe (keys %known) {
    if ($input =~ /$maybe/i ) {
        print "You gave us $input, which equates to $known{$input}. Go
+od night, and good luck.\n";
        last;
    } else {
         print "Not a match. YET!\n";
    }
}
#!/usr/bin/perl #picky about its inputs
use strict; use warnings;
my %known = ("foo" => "FOO", "bar" => "BAR", "baz" => "BAZ");
print "Talk to me, Goose.";
my $input = <STDIN>; chomp($input);
print "You gave us $input, which equates to $known{$input}. Have a nic
+e day.\n";

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In reply to Checking input against known by Anonymous Monk

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