void run_next_scorer (Slur_score_state const &);
bool done () const;
static Slur_configuration *new_config (Drul_array<Offset> const &offs, int idx);
void run_next_scorer (Slur_score_state const &);
bool done () const;
static Slur_configuration *new_config (Drul_array<Offset> const &offs, int idx);