734   float diff;                    /*difference from line */  in partition_line()  local
746     diff = ydiffs[blobindex];    /*diff from line */  in partition_line()
753       choose_partition(diff, partdiffs, bestpart, jumplimit, numparts);  in partition_line()
763     diff = ydiffs[blobindex];    /*diff from line */  in partition_line()
770       choose_partition(diff, partdiffs, bestpart, jumplimit, numparts);  in partition_line()
811   float diff;                    /*difference from line */  in merge_oldbl_parts()  local
853             diff = m * coord.x () + c - coord.y ();  in merge_oldbl_parts()
857                 diff, coord.x (), coord.y ());  in merge_oldbl_parts()
858             if (diff < jumplimit && -diff < jumplimit)  in merge_oldbl_parts()
870             diff = m * coord.x () + c - coord.y ();  in merge_oldbl_parts()
874                 diff, coord.x (), coord.y ());  in merge_oldbl_parts()
875             if (diff < jumplimit && -diff < jumplimit)  in merge_oldbl_parts()
921   float diff;                    /*current difference */  in get_ydiffs()  local
938     diff = blobcoords[blobindex].bottom ();  in get_ydiffs()
939     diff -= spline->y (xcentre);  in get_ydiffs()
940     diff += drift;  in get_ydiffs()
941     ydiffs[blobindex] = diff;    /*store difference */  in get_ydiffs()
945     diffsum += ABS (diff);       /*add new one */  in get_ydiffs()
963 register float diff,             /*diff from spline */  in choose_partition()  argument
977     partdiffs[0] = diff;  in choose_partition()
983   delta = diff - partdiffs[lastpart] - drift;  in choose_partition()
985     tprintf ("Diff=%.2f, Delta=%.3f, Drift=%.3f, ", diff, delta, drift);  in choose_partition()
989     bestdelta = diff - partdiffs[0] - drift;  in choose_partition()
992       delta = diff - partdiffs[partition] - drift;  in choose_partition()
1004       partdiffs[bestpart] = diff - drift;  in choose_partition()
1479   register float diff;           /*height difference */  in old_first_xheight()  local
1512     diff = blobcoords[blobindex].top () - baseline->y (xcentre);  in old_first_xheight()
1514     if (diff > lineheight + jumplimit) {  in old_first_xheight()
1515       ascenders += diff;  in old_first_xheight()
1518     else if (diff > lineheight - jumplimit) {  in old_first_xheight()
1519       xsum += diff;              /*mean xheight */  in old_first_xheight()