100 	struct range old;  member
563 		(*dd)[i].old.from = a;  in readin()
564 		(*dd)[i].old.to = b;  in readin()
570 		(*dd)[i].old.from = (*dd)[i-1].old.to;  in readin()
649 			d1->old.from, d1->old.to,  in merge()
651 			d2->old.from, d2->old.to,  in merge()
660 				change(1, &d1->old, 0);  in merge()
673 				change(2, &d2->old, 0);  in merge()
685 			d1[1].old.from = d1->old.from;  in merge()
693 			d2[1].old.from = d2->old.from;  in merge()
700 			dpl = duplicate(&d1->old,&d2->old);  in merge()
710 				change(1, &d1->old, dpl);  in merge()
711 				change(2, &d2->old, 0);  in merge()
712 				d3 = d1->old.to > d1->old.from ? d1 : d2;  in merge()
726 			d2->old.from -= d2->new.from-d1->new.from;  in merge()
729 			d1->old.from -= d1->new.from-d2->new.from;  in merge()
733 			d2->old.to += d1->new.to - d2->new.to;  in merge()
736 			d1->old.to += d2->new.to - d1->new.to;  in merge()
877 	de[j].old.from = diff->old.from;  in edit()
878 	de[j].old.to = diff->old.to;  in edit()
893 			prange(&de[n].old);  in edscript()
895 			diff_output("%da\n=======\n", de[n].old.to -1);  in edscript()
916 			diff_output("%da\n%s\n.\n", de[n].old.from - 1, f1mark);  in edscript()