Hello Dave

it seems 0x80-0xFF characters with chr() still have to be upgraded even if utf8::all. Below code shows character with chr() in 0x80-0xFF range doesn't have UTF-8 flag. 

use strict;
use warnings;

my $str='\334ber@n\374ber.com';
$str =~ s/\\([0-7]+)/pack('U', oct('0'.$1))/eg;
binmode STDOUT, ":encoding(UTF-8)";
print "$str\n";
print utf8::is_utf8($str) ? "str is ...utf8\n" : "str is ...not utf8\n
+";

use 5.010;
use utf8::all;

my $string='\334ber@n\374ber.com';
$string =~ s/\\([0-7]+)/chr oct $1/eg;
print "$string\n";
print utf8::is_utf8($string) ? "string is ...utf8\n" : "string is ...n
+ot utf8\n";

my $string='\334ber@n\374ber.com';
$string =~ s/\\([0-7]+)/chr oct $1/eg;
utf8::upgrade($string);
print "$string\n";
print utf8::is_utf8($string) ? "string is ...utf8\n" : "string is ...n
+ot utf8\n";

[download]
I think utf8::all is utf8::almost.

In reply to Re^3: How can I safely unescape a string. by remiah
in thread How can I safely unescape a string. by Skeeve

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