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Annotation of researchv10no/cmd/eqn/over.c, revision 1.1.1.1

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

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