For "space characters", why did you add U+000B and U+000C?
I think this question is even more important if you note that XHTML 1 indicates that U+000C is an invalid XML char (see http://www.w3.org/TR/xhtml1/#C_15)
Cyril -- Cyril Concolato Maître de Conférences/Associate Professor Groupe Mutimedia/Multimedia Group Telecom ParisTech 46 rue Barrault 75 013 Paris, France http://concolato.blog.telecom-paristech.fr/
