static bool is_extraneous_column_from_ligature (Grob *);
static Real minimum_distance (Grob *l, Grob *r);
static Interval break_align_width (Grob *me, SCM align_sym);
+ static Interval get_interface_extent (Grob *column, SCM iface, Axis a);
};
#endif // PAPER_COLUMN_HH