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Annotation of researchv9/cmd/eqn/over.c, revision 1.1

1.1     ! root        1: # include "e.h"
        !             2: 
        !             3: boverb(p1, p2)
        !             4:        int p1, p2;
        !             5: {
        !             6:        int treg;
        !             7:        float h, b, d, d1, d2, d3;
        !             8:        extern float Overgap, Overwid, Overline;
        !             9: 
        !            10:        treg = salloc();
        !            11:        yyval = p1;
        !            12:        d = EM(Overgap, ps);
        !            13:        h = eht[p1] + eht[p2] + d;
        !            14:        b = eht[p2] - d;
        !            15:        dprintf(".\tS%d <- %d over %d; b=%g, h=%g\n", 
        !            16:                yyval, p1, p2, b, h);
        !            17:        nrwid(p1, ps, p1);
        !            18:        nrwid(p2, ps, p2);
        !            19:        printf(".nr %d \\n(%d\n", treg, p1);
        !            20:        printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p2, treg, treg, p2);
        !            21:        printf(".nr %d \\n(%d+%gm\n", treg, treg, Overwid);
        !            22:        d2 = eht[p2]-ebase[p2]-d;       /* denom */
        !            23:        printf(".ds %d \\v'%gm'\\h'\\n(%du-\\n(%du/2u'\\*(%d\\v'%gm'\\\n", 
        !            24:                yyval, REL(d2,ps), treg, p2, p2, REL(-d2,ps));
        !            25:        d1 = 2 * d + ebase[p1];         /* num */
        !            26:        printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%gm'\\*(%d\\v'%gm'\\\n", 
        !            27:                p2, p1, REL(-d1,ps), p1, REL(d1,ps));
        !            28:        printf("\\h'-\\n(%du-\\n(%du/2u+%gm'\\v'%gm'\\l'\\n(%du-%gm'\\h'%gm'\\v'%gm'\n", 
        !            29:                treg, p1, Overline, REL(-d,ps),
        !            30:                treg, 2*Overline, Overline, REL(d,ps));
        !            31:        ebase[yyval] = b;
        !            32:        eht[yyval] = h;
        !            33:        lfont[yyval] = rfont[yyval] = 0;
        !            34:        sfree(p2);
        !            35:        sfree(treg);
        !            36: }

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