[NTG-context] automatic generation of em dash at the beginning of a line

Hello list, This is probably a Polish idiosyncrasy, but we have to live with it. According to punctuation rules when an em dash is at the end of a line, it should be repeated at the beginning of the next one (true, it is often disregarded due to lack of support for it in typesetting programs). Is there any way to deal with it in ConTeX? Best Piotr -- http://okle.pl