digraphs: mkdigraphlist: avoid undefinedness warnings

[sheet.git] / tools / mkdigraphlist

diff --git a/tools/mkdigraphlist b/tools/mkdigraphlist
index ecd825f0d653cc8c7fd32bd90bfc45ee970f60b5..500abbb0f6438fa7748f94808eb25fce5f75fbb6 100755 (executable)
--- a/tools/mkdigraphlist
+++ b/tools/mkdigraphlist
@@ -33,11 +33,11 @@ printf '(map {$_=>0} qw{%s}),'."\n", join(' ',
 printf "q{%s}=>[%s],\n", s/(?=[\\}])/\\/gr, join(',',
        ord $di->{$_},   # original code point
        map {"'$_'"}
-       $uninfo->{ $di->{$_} }->[1],  # name
+       $uninfo->{ $di->{$_} }->[1] // '',  # name
        $vim->{$_}
                ? $rfc->{$_} ? 'u-di' : 'u-prop'  # vim+rfc or vim-only
                :              'u-prop ex',  # neither
-       $uninfo->{ $di->{$_} }->[0] =~ s/ u-di| u-prop| ex//gr,  # class
+       ($uninfo->{ $di->{$_} }->[0] // '') =~ s/ u-di| u-prop| ex//gr,  # class
        $uninfo->{ $di->{$_} }->[4] // (),  # string
 ) for sort keys %{$di};
 print "}\n";