gchar *keyword_get_name(GtkTreeModel *keyword_tree, GtkTreeIter *iter);
+gchar *keyword_get_mark(GtkTreeModel *keyword_tree, GtkTreeIter *iter);
gchar *keyword_get_casefold(GtkTreeModel *keyword_tree, GtkTreeIter *iter);
gboolean keyword_get_is_keyword(GtkTreeModel *keyword_tree, GtkTreeIter *iter);