I can't figure out why this does not work:

use Unicode::UCD qw/charscript charblock/;
my $infile = shift @ARGV;
open (INPUT, "<:utf8", "$infile")    or die "cant open $infile: $!";
$/ = undef;
my $string = <INPUT>;
my @array = split //, $string;
foreach my $uChar (@array) { 
   $uChar = ord($uChar);
   print "DEBUG uChar: $uChar\n"; #works fine (decimal value of each c
+har is printed)
   $c = charblock($uChar);
   print "DEBUG: $c\n";  #produces warning and prints blank
}

[download]
The warning is:
Use of uninitialized value in concatenation (.) or string at freq\points.pl line 34.
I have tested the charblock function with 
my $c = charblock(1578);
print "$c\n";

[download]
and this works fine, printing "Arabic" as it should
What am I missing?

In reply to problem with Unicode::UCD by rubenstein

Title:
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