Here's my code: 
#!/usr/bin/perl5.16.3 -w                                              
+                                          

use strict;
use utf8;
use HTML::Entities;
binmode STDOUT, ':encoding(UTF-8)';

my $string1 = "Édition limitée.";
$string1 = decode_entities($string1);
$string1 = lc($string1);
print $string1, "\n";
# Yields "édition limitée."                                           
+                                          

my $string2 = "Édition limitée.";
$string2 = decode_entities($string2);
$string2 = lc($string2);
print $string2, "\n";
# Yields "Édition limitée."

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For some reason, the "É" character is lowercased in the first example but not the second. The difference in the second case is that the character originated as the "É" entity.

I searched around on the web and could not find an explanation. Thanks for any help.

In reply to Unexpected interaction between decode_entities() and lc() by kurisuto

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