1 #ifndef lint 2 static char *sccsid = "fromto.c (CWI) 1.1 85/03/01"; 3 #endif 4 # include "e.h" 5 6 fromto(p1, p2, p3) int p1, p2, p3; { 7 int b, h1, b1, pss; 8 yyval = oalloc(); 9 lfont[yyval] = rfont[yyval] = 0; 10 h1 = eht[yyval] = eht[p1]; 11 b1 = ebase[p1]; 12 b = 0; 13 pss = EFFPS(ps); 14 ps += 3; 15 nrwid(p1, ps, p1); 16 printf(".nr %d \\n(%d\n", yyval, p1); 17 if( p2>0 ) { 18 nrwid(p2, pss, p2); 19 printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p2, yyval, yyval, p2); 20 eht[yyval] += eht[p2]; 21 b = eht[p2]; 22 } 23 if( p3>0 ) { 24 nrwid(p3, pss, p3); 25 printf(".if \\n(%d>\\n(%d .nr %d \\n(%d\n", p3, yyval, yyval, p3); 26 eht[yyval] += eht[p3]; 27 } 28 printf(".ds %d ", yyval); /* bottom of middle box */ 29 if( p2>0 ) { 30 printf("\\v'%du'\\h'\\n(%du-\\n(%du/2u'\\s%d\\*(%d\\s%d", 31 eht[p2]-ebase[p2]+b1, yyval, p2, pss, p2, EFFPS(ps)); 32 printf("\\h'-\\n(%du-\\n(%du/2u'\\v'%du'\\\n", 33 yyval, p2, -(eht[p2]-ebase[p2]+b1)); 34 } 35 printf("\\h'\\n(%du-\\n(%du/2u'\\*(%d\\h'\\n(%du-\\n(%du/2u'\\\n", 36 yyval, p1, p1, yyval, p1); 37 if( p3>0 ) { 38 printf("\\v'%du'\\h'-\\n(%du-\\n(%du/2u'\\s%d\\*(%d\\s%d\\h'\\n(%du-\\n(%du/2u'\\v'%du'\\\n", 39 -(h1-b1+ebase[p3]), yyval, p3, pss, p3, EFFPS(ps), yyval, p3, (h1-b1+ebase[p3])); 40 } 41 printf("\n"); 42 ebase[yyval] = b + b1; 43 if(dbg)printf(".\tfrom to: S%d <- %d f %d t %d; h=%d b=%d\n", 44 yyval, p1, p2, p3, eht[yyval], ebase[yyval]); 45 ofree(p1); 46 if( p2>0 ) ofree(p2); 47 if( p3>0 ) ofree(p3); 48 } 49