use Unicode::Normalize qw( NFKD );
use Text::Unidecode qw( unidecode );

{
	rows => [0, 1],
	def => {
		'' => {
			map {
				my $v = $rows{$_};
				my $class = (
					  !defined $v || $_ eq $v ? 1 # identical
					: $v =~ /\A\p{Mn}+\z/ ? 8 # combining accent
					: NFKD($v) =~ $_ ? 2 # decomposed equivalent
					: $v =~ /^\p{Latin}/ ? 4 # latin script
					: unidecode($v) =~ /^\W*\Q$_/ ? 5 # transliterated
					: 7
				);
				$_ => "g$class"
			} keys %rows
		},
	},
	key => \%rows,
	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"],
	},
}
