fix encoding bug in stemmadot input

diff --git a/lib/Text/Tradition/Stemma.pm b/lib/Text/Tradition/Stemma.pm
index 2e474e8..5ceffaa 100644 (file)
--- a/lib/Text/Tradition/Stemma.pm
+++ b/lib/Text/Tradition/Stemma.pm
@@ -269,6 +269,7 @@ sub alter_graph {
        my( $self, $dotstring ) = @_;
        my $dotfh;
        open $dotfh, '<', \$dotstring;
+       binmode $dotfh, ':utf8';
        $self->_graph_from_dot( $dotfh );
 }