# 2.11BSD#431 - /usr/src/usr.bin/eqn/fromto.c

##### Functions

    fromto            X

       1: #ifndef lint
       2: static char sccsid[] = "@(#)fromto.c	4.3 8/11/83";
       3: #endif
       4:
       5: # include "e.h"
       6:
       7: fromto(p1, p2, p3) int p1, p2, p3; {
       8:     int b, h1, b1, pss;
       9:     yyval = oalloc();
      10:     lfont[yyval] = rfont[yyval] = 0;
      11:     h1 = eht[yyval] = eht[p1];
      12:     b1 = ebase[p1];
      13:     b = 0;
      14:     pss = EFFPS(ps);
      15:     ps += 3;
      16:     nrwid(p1, ps, p1);
      17:     printf(".nr %d \\n(%d\n", yyval, p1);
      18:     if( p2>0 ) {
      19:         nrwid(p2, pss, p2);
      20:         printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p2, yyval, yyval, p2);
      21:         eht[yyval] += eht[p2];
      22:         b = eht[p2];
      23:     }
      24:     if( p3>0 ) {
      25:         nrwid(p3, pss, p3);
      26:         printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p3, yyval, yyval, p3);
      27:         eht[yyval] += eht[p3];
      28:     }
      29:     printf(".ds %d ", yyval);   /* bottom of middle box */
      30:     if( p2>0 ) {
      31:         printf("\\v'%du'\\h'\\n(%du-\\n(%du/2u'\\s%d\\*(%d\\s%d",
      32:             eht[p2]-ebase[p2]+b1, yyval, p2, pss, p2, EFFPS(ps));
      33:         printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%du'\\\n",
      34:             yyval, p2, -(eht[p2]-ebase[p2]+b1));
      35:     }
      36: #ifndef NEQN
      37:     printf("\\h'\\n(%du-\\n(%du/2u'\\*(%d\\h'\\n(%du-\\n(%du/2u'\\\n",
      38: #else NEQN
      39:     printf("\\h'\\n(%du-\\n(%du/2u'\\*(%d\\h'\\n(%du-\\n(%du+2u/2u'\\\n",
      40: #endif NEQN
      41:         yyval, p1, p1, yyval, p1);
      42:     if( p3>0 ) {
      43:         printf("\\v'%du'\\h'-\\n(%du-\\n(%du/2u'\\s%d\\*(%d\\s%d\\h'\\n(%du-\\n(%du/2u'\\v'%du'\\\n",
      44:             -(h1-b1+ebase[p3]), yyval, p3, pss, p3, EFFPS(ps), yyval, p3, (h1-b1+ebase[p3]));
      45:     }
      46:     printf("\n");
      47:     ebase[yyval] = b + b1;
      48:     if(dbg)printf(".\tfrom to: S%d <- %d f %d t %d; h=%d b=%d\n",
      49:         yyval, p1, p2, p3, eht[yyval], ebase[yyval]);
      50:     ofree(p1);
      51:     if( p2>0 ) ofree(p2);
      52:     if( p3>0 ) ofree(p3);
      53: }

#### Defined functions

fromto defined in line 7; used 2 times

- in /usr/src/usr.bin/eqn/e.y line 80-81(2)

#### Defined variables

sccsid defined in line 2; never used

Last modified: 1987-02-17 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 860 |