Return to pile.c CVS log

Up to [Research Unix] / researchv8dc / cmd / eqn

Annotation of researchv8dc/cmd/eqn/pile.c, revision 1.1.1.1

1.1       root        1: #include "e.h"
                      2: #include "e.def"
                      3: 
                      4: pile(oct)
                      5:        int oct;
                      6: {
                      7:        int i, nlist, nlist2, mid;
                      8:        float bi, hi, h, b, gap;
                      9:        int type, p1, p2;
                     10: 
                     11:        yyval = salloc();
                     12:        type = lp[oct];
                     13:        p1 = oct + 3;           /* first entry */
                     14:        p2 = p1 + lp[oct+1];    /* 1 after last */
                     15:        gap = lp[oct+2];
                     16:        if (gap != DEFGAP)
                     17:                gap = EM(gap/100.0, ps);
                     18:        else if (type == COL)
                     19:                gap = 0;
                     20:        else
                     21:                gap = EM(0.4, ps);      /* 0.4 m between LCOL, etc. */
                     22:        nlist = p2 - p1;
                     23:        nlist2 = (nlist+1)/2;
                     24:        mid = p1 + nlist2 - 1;
                     25:        h = 0;
                     26:        for (i = p1; i < p2; i++)
                     27:                h += eht[lp[i]];
                     28:        eht[yyval] = h + (nlist-1)*gap;
                     29:        b = 0;
                     30:        for (i = p2-1; i > mid; i--)
                     31:                b += eht[lp[i]] + gap;
                     32:        ebase[yyval] = (nlist%2) ? b + ebase[lp[mid]]
                     33:                        : b - EM(0.5, ps) - gap;
                     34:        if (dbg) {
                     35:                printf(".\tS%d <- %d pile of:", yyval, type);
                     36:                for (i = p1; i < p2; i++)
                     37:                        printf(" S%d", lp[i]);
                     38:                printf("; h=%g b=%g\n", eht[yyval], ebase[yyval]);
                     39:        }
                     40:        nrwid(lp[p1], ps, lp[p1]);
                     41:        printf(".nr %d \\n(%d\n", yyval, lp[p1]);
                     42:        for (i = p1+1; i < p2; i++) {
                     43:                nrwid(lp[i], ps, lp[i]);
                     44:                printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", 
                     45:                        lp[i], yyval, yyval, lp[i]);
                     46:        }
                     47:        printf(".ds %d \\v'%gm'\\h'%du*\\n(%du'\\\n", yyval, REL(ebase[yyval],ps), 
                     48:                type==RCOL ? 1 : 0, yyval);
                     49:        for (i = p2-1; i >= p1; i--) {
                     50:                hi = eht[lp[i]]; 
                     51:                bi = ebase[lp[i]];
                     52:        switch (type) {
                     53:        case LCOL:
                     54:                printf("\\v'%gm'\\*(%d\\h'-\\n(%du'\\v'0-%gm'\\\n", 
                     55:                        REL(-bi,ps), lp[i], lp[i], REL(hi-bi+gap,ps));
                     56:                continue;
                     57:        case RCOL:
                     58:                printf("\\v'%gm'\\h'-\\n(%du'\\*(%d\\v'0-%gm'\\\n", 
                     59:                        REL(-bi,ps), lp[i], lp[i], REL(hi-bi+gap,ps));
                     60:                continue;
                     61:        case CCOL:
                     62:        case COL:
                     63:                printf("\\v'%gm'\\h'\\n(%du-\\n(%du/2u'\\*(%d", 
                     64:                        REL(-bi,ps), yyval, lp[i], lp[i]);
                     65:                printf("\\h'-\\n(%du-\\n(%du/2u'\\v'0-%gm'\\\n", 
                     66:                        yyval, lp[i], REL(hi-bi+gap,ps));
                     67:                continue;
                     68:                }
                     69:        }
                     70:        printf("\\v'%gm'\\h'%du*\\n(%du'\n", REL(eht[yyval]-ebase[yyval]+gap,ps), 
                     71:                type!=RCOL ? 1 : 0, yyval);
                     72:        for (i = p1; i < p2; i++)
                     73:                sfree(lp[i]);
                     74:        lfont[yyval] = rfont[yyval] = 0;
                     75: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.