keyboard.eng.inc.pl

   1 use Unicode::Normalize qw( NFKD );
   2 use Text::Unidecode qw( unidecode );
   3
   4 {
   5         rows => [0, 1],
   6         def => {
   7                 '' => {
   8                         map {
   9                                 my $v = $rows{$_};
  10                                 my $class = (
  11                                           !defined $v || $_ eq $v ? 1 # identical
  12                                         : $v =~ /\A\p{Mn}+\z/ ? 8 # combining accent
  13                                         : NFKD($v) =~ $_ ? 2 # decomposed equivalent
  14                                         : $v =~ /^\p{Latin}/ ? 4 # latin script
  15                                         : unidecode($v) =~ /^\W*\Q$_/ ? 5 # transliterated
  16                                         : 7
  17                                 );
  18                                 $_ => "g$class"
  19                         } keys %rows
  20                 },
  21         },
  22         key => \%rows,
  23         flag => {
  24                 g1 => ['unaltered', "same results as without modifier"],
  25                 g2 => ['accented', "decomposes to the original letter with a combining accent"],
  26                 g4 => ['latin', "a different (accented) latin letter"],
  27                 g5 => ['similar', "transliterates (mostly) into the unmodified letter"],
  28                 g7 => ['other', "symbol not directly deducible from key"],
  29                 g8 => ['combining', "diacritical mark to be combined with a following character"],
  30         },
  31 }