reverse Scrabble scorer

[msh210]

I had need to browse, repeatedly for different numbers, a list of words and phrases whose Scrabble scores^[1] were that number. So I wrote this little script. It's not much but perhaps can help someone. And obviously if anyone has any corrections or suggestions, I'm all ears.

use strict;
use warnings;
use Unicode::Normalize;
use List::Util 'sum0';

my %values;
@values{'A'..'Z'} = @values{'a'..'z'} = (1, 3, 3, 2, 1, 4, 2, 4, 1, 8,
+ 5, 1, 3, 1, 1, 3, 10, 1, 1, 1, 1, 4, 4, 8, 4, 10);

print 'What score? ';
my $score = <>;
$score =~ s/^(0|\s)+//;
$score =~ s/\s+$//;
die "um, a positive integer$/" unless $score =~ /^[0-9]+$/;

print 'What length, at least? (or blank for 1) ';
my $min = <>;
$min =~ s/^(0|\s)+//;
$min =~ s/\s+$//;
$min = 1 unless $min =~ /^[0-9]+$/;

print 'What length, at most? (or blank for no max) ';
my $max = <>;
$max =~ s/^(0|\s)+//;
$max =~ s/\s+$//;
$max = 0 unless $max =~ /^[0-9]+$/;

print 'What regex? (no slashes; or blank for any) ';
my $re = <>;
chomp $re;
$re = '.*' if $re eq '';
$re = qr/$re/i;

my %good;

my %dicts = (
    # a hash of pairs like: '/path/to/wordlist' => 'nickname_for_the_w
+ordlist'
);

for my $file (keys %dicts) {
    open my $fh, '<', $file or next;
    while (<$fh>) {
        next if /\d/;
        s/\W|_//g;
        $_  = NFKD $_;
        s/\pM//g;
        next unless $min <= length;
        next unless $max == 0 or $max >= length;
        next unless $score == sum0 map $values{$_}, split //;
        next unless m/$re/;
        undef $good{lc$_}{$dicts{$file}}
    }
}

$, = v9;
$\ = $/;
print $_, join ',', sort keys %{$good{$_}} for sort keys %good

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^{[1] theoretical Scrabble scores… not necessarily are all such words valid in Scrabble}