+Bracket_nesting_group::add_support (Grob *g)
+{
+ Side_position_interface::add_support (g, delimiter_);
+ for (vsize i = 0; i < children_.size (); i++)
+ children_[i]->add_support (g);
+}
+
+Bracket_nesting_group::~Bracket_nesting_group ()
+{
+ junk_pointers (children_);
+}
+
+void
+Bracket_nesting_group::set_bound (Direction d, Grob *g)
+{
+ delimiter_->set_bound (d, g);
+ for (vsize i = 0; i < children_.size (); i++)
+ children_[i]->set_bound (d, g);
+}
+
+void
+Bracket_nesting_group::set_nesting_support (Grob *parent)
+{
+ if (parent)
+ Side_position_interface::add_support (delimiter_, parent);
+
+ for (vsize i = 0; i < children_.size (); i++)
+ children_[i]->set_nesting_support (delimiter_);
+}
+
+void
+Bracket_nesting_group::from_list (SCM x)