projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| f6227721 SL |
1 | #ifndef lint |
| 2 | static char sccsid[] = "@(#)fromto.c 4.3 %G%"; | |
| 3 | #endif | |
| d3bad14d BS |
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 | } | |
| 6f1a2a65 | 36 | #ifndef NEQN |
| d3bad14d | 37 | printf("\\h'\\n(%du-\\n(%du/2u'\\*(%d\\h'\\n(%du-\\n(%du/2u'\\\n", |
| 6f1a2a65 BS |
38 | #else NEQN |
| 39 | printf("\\h'\\n(%du-\\n(%du/2u'\\*(%d\\h'\\n(%du-\\n(%du+2u/2u'\\\n", | |
| 40 | #endif NEQN | |
| d3bad14d BS |
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 | } |