Subversion Repositories planix.SVN

#include "e.h"

void boverb(int p1, int p2)
{
        int treg;
        double h, b, d, d1, d2;
        extern double Overgap, Overwid, Overline;

        treg = salloc();
        yyval = p1;
        d = EM(Overgap, ps);
        h = eht[p1] + eht[p2] + d;
        b = eht[p2] - d;
        dprintf(".\tS%d <- %d over %d; b=%g, h=%g\n", 
                yyval, p1, p2, b, h);
        nrwid(p1, ps, p1);
        nrwid(p2, ps, p2);
        printf(".nr %d \\n(%d\n", treg, p1);
        printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p2, treg, treg, p2);
        printf(".nr %d \\n(%d+%gm\n", treg, treg, Overwid);
        d2 = eht[p2]-ebase[p2]-d;       /* denom */
        printf(".ds %d \\v'%gm'\\h'\\n(%du-\\n(%du/2u'\\*(%d\\v'%gm'\\\n", 
                yyval, REL(d2,ps), treg, p2, p2, REL(-d2,ps));
        d1 = 2 * d + ebase[p1];         /* num */
        printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%gm'\\*(%d\\v'%gm'\\\n", 
                p2, p1, REL(-d1,ps), p1, REL(d1,ps));
        printf("\\h'-\\n(%du-\\n(%du/2u+%gm'\\v'%gm'\\l'\\n(%du-%gm'\\h'%gm'\\v'%gm'\n", 
                treg, p1, Overline, REL(-d,ps),
                treg, 2*Overline, Overline, REL(d,ps));
        ebase[yyval] = b;
        eht[yyval] = h;
        lfont[yyval] = rfont[yyval] = 0;
        sfree(p2);
        sfree(treg);
}