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- /*
- * This file is part of the UCB release of Plan 9. It is subject to the license
- * terms in the LICENSE file found in the top-level directory of this
- * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
- * part of the UCB release of Plan 9, including this file, may be copied,
- * modified, propagated, or distributed except according to the terms contained
- * in the LICENSE file.
- */
- #include "e.h"
- #include "y.tab.h"
- void pile(int oct)
- {
- int i, nlist, nlist2, mid;
- double bi, h, b, gap, sb;
- extern double Pilegap, Pilebase;
- int type, p1, p2;
- yyval = salloc();
- type = lp[oct];
- p1 = oct + 3; /* first entry */
- p2 = p1 + lp[oct+1]; /* 1 after last */
- gap = lp[oct+2];
- if (gap != DEFGAP)
- gap = EM(gap/100.0, ps);
- else if (type == COL)
- gap = 0;
- else
- gap = EM(Pilegap, ps); /* 0.4 m between LCOL, etc. */
- nlist = p2 - p1;
- nlist2 = (nlist+1)/2;
- mid = p1 + nlist2 - 1;
- h = 0;
- for (i = p1; i < p2; i++)
- h += eht[lp[i]];
- eht[yyval] = h + (nlist-1)*gap;
- b = 0;
- for (i = p2-1; i > mid; i--)
- b += eht[lp[i]] + gap;
- ebase[yyval] = (nlist%2) ? b + ebase[lp[mid]]
- : b - EM(Pilebase, ps) - gap;
- if (dbg) {
- printf(".\tS%d <- %d pile of:", yyval, type);
- for (i = p1; i < p2; i++)
- printf(" S%d", lp[i]);
- printf("; h=%g b=%g\n", eht[yyval], ebase[yyval]);
- }
- nrwid(lp[p1], ps, lp[p1]);
- printf(".nr %d \\n(%d\n", yyval, lp[p1]);
- for (i = p1+1; i < p2; i++) {
- nrwid(lp[i], ps, lp[i]);
- printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n",
- lp[i], yyval, yyval, lp[i]);
- }
- printf(".ds %d \\v'%gm'\\h'%du*\\n(%du'\\\n", yyval, REL(ebase[yyval],ps),
- type==RCOL ? 1 : 0, yyval);
- sb = 0; /* sum of box hts */
- for (i = p2-1; i >= p1; i--) {
- bi = sb + ebase[lp[i]];
- switch (type) {
- case LCOL:
- printf("\\v'%gm'\\*(%d\\h'-\\n(%du'\\v'%gm'\\\n",
- REL(-bi,ps), lp[i], lp[i], REL(bi,ps));
- break;
- case RCOL:
- printf("\\v'%gm'\\h'-\\n(%du'\\*(%d\\v'%gm'\\\n",
- REL(-bi,ps), lp[i], lp[i], REL(bi,ps));
- break;
- case CCOL:
- case COL:
- printf("\\v'%gm'\\h'\\n(%du-\\n(%du/2u'\\*(%d",
- REL(-bi,ps), yyval, lp[i], lp[i]);
- printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%gm'\\\n",
- yyval, lp[i], REL(bi,ps));
- break;
- }
- sb += eht[lp[i]] + gap;
- }
- printf("\\v'%gm'\\h'%du*\\n(%du'\n", REL(-ebase[yyval],ps),
- type!=RCOL ? 1 : 0, yyval);
- for (i = p1; i < p2; i++)
- sfree(lp[i]);
- lfont[yyval] = rfont[yyval] = 0;
- }
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