digraphs: mkdigraphlist: escape vim mnemonics

Unlike RFC 1345, Vim extensions such as /\ are not restricted to string-safe
characters.

diff --git a/tools/mkdigraphlist b/tools/mkdigraphlist
index 2e6c9191f46414ee7533efa6d97796b846db2783..ecd825f0d653cc8c7fd32bd90bfc45ee970f60b5 100755 (executable)
--- a/tools/mkdigraphlist
+++ b/tools/mkdigraphlist
@@ -30,7 +30,7 @@ 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(',',
+printf "q{%s}=>[%s],\n", s/(?=[\\}])/\\/gr, join(',',
        ord $di->{$_},   # original code point
        map {"'$_'"}
        $uninfo->{ $di->{$_} }->[1],  # name