1 /*
2 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 */
5
6 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
7 /* All Rights Reserved */
8
9 /*
10 * Copyright (c) 1980 Regents of the University of California.
11 * All rights reserved. The Berkeley software License Agreement
12 * specifies the terms and conditions for redistribution.
13 */
14
15 #pragma ident "%Z%%M% %I% %E% SMI"
16
17 #include "e.h"
18
19 void
eqnbox(int p1,int p2,int lu)20 eqnbox(int p1, int p2, int lu)
21 {
22 int b, h;
23 char *sh;
24
25 yyval = p1;
26 b = max(ebase[p1], ebase[p2]);
27 eht[yyval] = h = b + max(eht[p1]-ebase[p1], eht[p2]-ebase[p2]);
28 ebase[yyval] = b;
29 if (dbg)
30 printf(".\te:eb: S%d <- S%d S%d; b=%d, h=%d\n",
31 yyval, p1, p2, b, h);
32 if (rfont[p1] == ITAL && lfont[p2] == ROM)
33 sh = "\\|";
34 else
35 sh = "";
36 if (lu) {
37 printf(".nr %d \\w'\\s%d\\*(%d%s'\n", p1, ps, p1, sh);
38 printf(".ds %d \\h'|\\n(97u-\\n(%du'\\*(%d\n", p1, p1, p1);
39 }
40 printf(".as %d \"%s\\*(%d\n", yyval, sh, p2);
41 rfont[p1] = rfont[p2];
42 ofree(p2);
43 }
44