+ execute_general_pushpop_property (context (),
+ ev->get_property ("symbol"),
+ ev->get_property ("property-path"),
+ SCM_UNDEFINED);
+}
+
+void
+Engraver_group::connect_to_context (Context *c)
+{
+ Translator_group::connect_to_context (c);
+ c->event_source ()->add_listener (GET_LISTENER (override), ly_symbol2scm ("Override"));
+ c->event_source ()->add_listener (GET_LISTENER (revert), ly_symbol2scm ("Revert"));
+}
+
+void
+Engraver_group::disconnect_from_context ()
+{
+ context ()->event_source ()->remove_listener (GET_LISTENER (override), ly_symbol2scm ("Override"));
+ context ()->event_source ()->remove_listener (GET_LISTENER (revert), ly_symbol2scm ("Revert"));
+ Translator_group::disconnect_from_context ();
+}
+
+void
+Engraver_group::announce_grob (Grob_info info)
+{
+ announce_infos_.push_back (info);
+
+ Engraver_group *dad_eng
+ = context_->get_parent_context ()
+ ? dynamic_cast<Engraver_group *> (context_->get_parent_context ()->implementation ())
+ : 0;
+
+ if (dad_eng)
+ dad_eng->announce_grob (info);
+}
+
+void
+Engraver_group::acknowledge_grobs ()
+{
+ if (!announce_infos_.size ())
+ return;
+
+ SCM name_sym = ly_symbol2scm ("name");
+ SCM meta_sym = ly_symbol2scm ("meta");