+ return arr;
+}
+
+Grob *
+Pointer_group_interface::find_grob (Grob *me, SCM sym, bool (*pred) (Grob*))
+{
+ Grob_array *arr = get_grob_array (me, sym);
+
+ for (vsize i = 0; i < arr->size (); i++)
+ if (pred (arr->grob (i)))
+ return arr->grob (i);
+
+ return 0;
+}
+
+void
+Pointer_group_interface::add_grob (Grob *me, SCM sym, Grob *p)
+{
+ Grob_array *arr = get_grob_array (me, sym);
+ arr->add (p);
+}
+
+void
+Pointer_group_interface::add_unordered_grob (Grob *me, SCM sym, Grob *p)
+{
+ Grob_array *arr = get_grob_array (me, sym);