--- /dev/null
+use utf8;
+use Unicode::Normalize qw( NFKD );
+use Text::Unidecode qw( unidecode );
+
+my @usintrows = (
+ [ 'a' .. 'z'],
+ [qw(Á B ¢ Ð É F G H Í J Œ Ø µ Ñ Ó Ö Ä ® § Þ Ú V Å X Ü Æ)],
+ [qw(á b © ð é f g h í j œ ø µ ñ ó ö ä ® ß þ ú v å x ü æ)],
+ [qw(Å ı Ç ð ´ ̉ ˝ ̣ ˆ ½ Þ ¾ ˜ Ø ∏ Œ ‰ / ˇ ¨ ◊ „ ˛ ¼ ¸)],
+ [qw(å ∫ ç ∂ ́ ƒ © ˙ ̂ ∆ ° ¬ µ ̃ ø π œ ® ß † ̈ √ ∑ ≈ ¥ Ω)],
+);
+my @usint = (
+ map {
+ my $c = $_;
+ [ map { $usintrows[$_]->[$c] } 0 .. 2 ]
+ } 0 .. $#{ $usintrows[0] }
+);
+
+{
+ def => {
+ '' => {
+ map {
+ my @row = @{$_};
+ my $class = (
+ !defined $row[2] || $row[0] eq $row[2] ? 1 # identical
+ : $row[2] =~ /\A\p{Mn}+\z/ ? 8 # combining accent
+ : NFKD($row[2]) =~ $row[0] ? 2 # decomposed equivalent
+ : $row[2] =~ /^\p{Latin}/ ? 4 # latin script
+ : unidecode($row[2]) =~ /^\W*\Q$row[0]/ ? 5 # transliterated
+ : 7
+ );
+ $row[0] => "g$class"
+ } @usint
+ },
+ },
+ key => {
+ map {
+ $_->[0] => "$_->[1]<br>$_->[2]"
+ } @usint
+ },
+ flag => {
+ g1 => ['unaltered', "same results as without modifier"],
+ g2 => ['accented', "decomposes to the original letter with a combining accent"],
+ g4 => ['latin', "a different (accented) latin letter"],
+ g5 => ['similar', "transliterates (mostly) into the unmodified letter"],
+ g7 => ['other', "symbol not directly deducible from key"],
+ g8 => ['combining', "diacritical mark to be combined with a following character"],
+ },
+}