1*48252Sbostic /*-
2*48252Sbostic * Copyright (c) 1991 The Regents of the University of California.
3*48252Sbostic * All rights reserved.
4*48252Sbostic *
5*48252Sbostic * %sccs.include.proprietary.c%
6*48252Sbostic */
7*48252Sbostic
814486Ssam #ifndef lint
9*48252Sbostic static char sccsid[] = "@(#)pile.c 4.4 (Berkeley) 04/17/91";
10*48252Sbostic #endif /* not lint */
1111015Sshannon
1211015Sshannon # include "e.h"
1311015Sshannon
lpile(type,p1,p2)1411015Sshannon lpile(type, p1, p2) int type, p1, p2; {
1511015Sshannon int bi, hi, i, gap, h, b, nlist, nlist2, mid;
1611015Sshannon yyval = oalloc();
1711023Sshannon #ifndef NEQN
1811015Sshannon gap = VERT( (ps*6*4)/10 ); /* 4/10 m between blocks */
1911023Sshannon #else NEQN
2011023Sshannon gap = VERT(1);
2111023Sshannon #endif NEQN
2211015Sshannon if( type=='-' ) gap = 0;
2311015Sshannon nlist = p2 - p1;
2411015Sshannon nlist2 = (nlist+1)/2;
2511015Sshannon mid = p1 + nlist2 -1;
2611015Sshannon h = 0;
2711015Sshannon for( i=p1; i<p2; i++ )
2811015Sshannon h += eht[lp[i]];
2911015Sshannon eht[yyval] = h + (nlist-1)*gap;
3011015Sshannon b = 0;
3111015Sshannon for( i=p2-1; i>mid; i-- )
3211015Sshannon b += eht[lp[i]] + gap;
3311015Sshannon ebase[yyval] = (nlist%2) ? b + ebase[lp[mid]]
3411023Sshannon #ifndef NEQN
3511015Sshannon : b - VERT( (ps*6*5)/10 ) - gap;
3611023Sshannon #else NEQN
3711023Sshannon : b - VERT(1) - gap;
3811023Sshannon #endif NEQN
3911015Sshannon if(dbg) {
4011015Sshannon printf(".\tS%d <- %c pile of:", yyval, type);
4111015Sshannon for( i=p1; i<p2; i++)
4211015Sshannon printf(" S%d", lp[i]);
4311015Sshannon printf(";h=%d b=%d\n", eht[yyval], ebase[yyval]);
4411015Sshannon }
4511015Sshannon nrwid(lp[p1], ps, lp[p1]);
4611015Sshannon printf(".nr %d \\n(%d\n", yyval, lp[p1]);
4711015Sshannon for( i = p1+1; i<p2; i++ ) {
4811015Sshannon nrwid(lp[i], ps, lp[i]);
4911015Sshannon printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n",
5011015Sshannon lp[i], yyval, yyval, lp[i]);
5111015Sshannon }
5211015Sshannon printf(".ds %d \\v'%du'\\h'%du*\\n(%du'\\\n", yyval, ebase[yyval],
5311015Sshannon type=='R' ? 1 : 0, yyval);
5411015Sshannon for(i = p2-1; i >=p1; i--) {
5511015Sshannon hi = eht[lp[i]];
5611015Sshannon bi = ebase[lp[i]];
5711015Sshannon switch(type) {
5811015Sshannon
5911015Sshannon case 'L':
6011015Sshannon printf("\\v'%du'\\*(%d\\h'-\\n(%du'\\v'0-%du'\\\n",
6111015Sshannon -bi, lp[i], lp[i], hi-bi+gap);
6211015Sshannon continue;
6311015Sshannon case 'R':
6411015Sshannon printf("\\v'%du'\\h'-\\n(%du'\\*(%d\\v'0-%du'\\\n",
6511015Sshannon -bi, lp[i], lp[i], hi-bi+gap);
6611015Sshannon continue;
6711015Sshannon case 'C':
6811015Sshannon case '-':
6911015Sshannon printf("\\v'%du'\\h'\\n(%du-\\n(%du/2u'\\*(%d",
7011015Sshannon -bi, yyval, lp[i], lp[i]);
7111015Sshannon printf("\\h'-\\n(%du-\\n(%du/2u'\\v'0-%du'\\\n",
7211015Sshannon yyval, lp[i], hi-bi+gap);
7311015Sshannon continue;
7411015Sshannon }
7511015Sshannon }
7611015Sshannon printf("\\v'%du'\\h'%du*\\n(%du'\n", eht[yyval]-ebase[yyval]+gap,
7711015Sshannon type!='R' ? 1 : 0, yyval);
7811015Sshannon for( i=p1; i<p2; i++ )
7911015Sshannon ofree(lp[i]);
8011015Sshannon lfont[yyval] = rfont[yyval] = 0;
8111015Sshannon }
82