eqn/integral.c

   1 #include "e.h"
   2 #include "y.tab.h"
   3
   4 extern int Intps;
   5 extern double Intht, Intbase, Int1h, Int1v, Int2h, Int2v;
   6
   7 void integral(int p, int p1, int p2)
   8 {
   9         if (p1 != 0)
  10                 printf(".ds %d \\h'%gm'\\v'%gm'\\*(%d\\v'%gm'\n", p1, -Int1h, Int1v, p1, -Int1v);
  11         if (p2 != 0)
  12                 printf(".ds %d \\v'%gm'\\h'%gm'\\*(%d\\v'%gm'\n", p2, -Int2v, Int2h, p2, Int2v);
  13         if (p1 != 0 && p2 != 0)
  14                 shift2(p, p1, p2);
  15         else if (p1 != 0)
  16                 bshiftb(p, SUB, p1);
  17         else if (p2 != 0)
  18                 bshiftb(p, SUP, p2);
  19         dprintf(".\tintegral: S%d; h=%g b=%g\n", p, eht[p], ebase[p]);
  20         lfont[p] = ROM;
  21 }
  22
  23 void setintegral(void)
  24 {
  25         yyval = salloc();
  26         printf(".ds %d %s\n", yyval, lookup(deftbl, "int_def")->cval);
  27         eht[yyval] = EM(Intht, ps+Intps);
  28         ebase[yyval] = EM(Intbase, ps);
  29         lfont[yyval] = rfont[yyval] = ROM;
  30 }