static void try_collapse (Grob *);
static Stencil staff_bracket (Grob *, Real);
static Stencil old_staff_bracket (Grob *, Real);
static Stencil staff_brace (Grob *, Real);
static Stencil simple_bar (Grob *, Real);
static Stencil line_bracket (Grob *, Real);
static void try_collapse (Grob *);
static Stencil staff_bracket (Grob *, Real);
static Stencil old_staff_bracket (Grob *, Real);
static Stencil staff_brace (Grob *, Real);
static Stencil simple_bar (Grob *, Real);
static Stencil line_bracket (Grob *, Real);