digraphs: leave out overridden inversions

diff --git a/tools/mkdigraphlist b/tools/mkdigraphlist
index 4af35901004c4fb1d57d681d70bc7dc1ee26ce3f..7a201a11edcbba198bbd54874bdd747dd936b800 100755 (executable)
--- a/tools/mkdigraphlist
+++ b/tools/mkdigraphlist
@@ -35,6 +35,7 @@ print "# automatically generated by $0\n";
 print "use utf8;\n";
 print "+{\n";
 printf '(map {$_=>0} qw{%s}),'."\n", join(' ',
+       grep { !defined $di->{$_} }
        map { substr($_, 1, 1).substr($_, 0, 1) } sort keys %{$di}
 );
 printf "q{%s}=>[%s],\n", $_, join(',',