PLACE_LEFT

#define PLACE_LEFT	(		box,
			off
	)

Value:

        do {                                                                            \
                if (v->spl_nleft > 0)                                   \
                        adjustBox(leftBox, box);                        \
                else                                                                    \
                        *leftBox = *(box);                                      \
                v->spl_left[v->spl_nleft++] = off;              \
        } while(0)