+2005-11-21 Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ * ly/engraver-init.ly (AncientRemoveEmptyStaffContext): replace
+ System_start_delimiter_engraver by
+ Nested_system_start_delimiter_engraver.
+
+ * lily/nested-system-start-delimiter-engraver.cc (struct
+ Bracket_nesting_node): new class.
+ (struct Bracket_nesting_group): new class
+ (struct Bracket_nesting_staff): new class.
+ (process_music): create hierarchy of grobs. This allows separate
+ tuning of different SSDs.
+
+ * scm/define-grobs.scm (all-grob-descriptions): new Grob SystemStartSquare
+ (all-grob-descriptions): remove old NestedSystemStartDelimiter.
+
2005-11-19 Han-Wen Nienhuys <hanwen@xs4all.nl>
* lily/side-position-interface.cc (aligned_side): multiply