use utf8;
use Encode qw(encode decode);
my $CharSet = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012
+3456789'; # ASCII
my $BoldSet = encode('utf8','𝐚𝐛𝐜𝐝w
+838;𝐟𝐠𝐡𝐢𝐣𝐤𝐥&#
+119846;𝐧𝐨𝐩𝐪𝐫𝐬𝐭
+;𝐮𝐯𝐰𝐱𝐲𝐳𝐀w
+809;𝐂𝐃𝐄𝐅𝐆𝐇𝐈&#
+119817;𝐊𝐋𝐌𝐍𝐎𝐏𝐐
+;𝐑𝐒𝐓𝐔𝐕𝐖𝐗w
+832;𝐙𝟎𝟏𝟐𝟑𝟒𝟓&#
+120788;𝟕𝟖𝟗');
my $Source = 'The quick brown fox jumps over the lazy dog 1234567890 t
+imes.';
my $Target = $Source;
$Target =~ tr/abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123
+456789/𝐚𝐛𝐜𝐝𝐞𝐟𝐠
+;𝐡𝐢𝐣𝐤𝐥𝐦𝐧w
+848;𝐩𝐪𝐫𝐬𝐭𝐮𝐯&#
+119856;𝐱𝐲𝐳𝐀𝐁𝐂𝐃
+;𝐄𝐅𝐆𝐇𝐈𝐉𝐊w
+819;𝐌𝐍𝐎𝐏𝐐𝐑𝐒&#
+119827;𝐔𝐕𝐖𝐗𝐘𝐙𝟎
+;𝟏𝟐𝟑𝟒𝟓𝟔𝟕x
+790;𝟗/;
print "$Source\n$Target\n";
#The quick brown fox jumps over the lazy dog 1234567890 times.
#𝐓𝐡𝐞 𝐪𝐮𝐢𝐜w
+844; 𝐛𝐫𝐨𝐰𝐧 𝐟𝐨
+𝐱 𝐣𝐮𝐦𝐩𝐬 𝐨
+9855;𝐞𝐫 𝐭𝐡𝐞 𝐥𝐚
+;𝐳𝐲 𝐝𝐨𝐠 𝟏𝟐
+20785;𝟒𝟓𝟔𝟕𝟖𝟗𝟎
+ 𝐭𝐢𝐦𝐞𝐬.