PLACE_RIGHT

#define PLACE_RIGHT	(		box,
			off
	)

Value:

        do {                                                                            \
                if (v->spl_nright > 0)                                  \
                        adjustBox(rightBox, box);                       \
                else                                                                    \
                        *rightBox = *(box);                                     \
                v->spl_right[v->spl_nright++] = off;    \
        } while(0)