1 #ifndef lint
2 static char sccsid[] = "@(#)eqnbox.c	2.2 (CWI) 87/04/01";
3 #endif lint
4 # include "e.h"
5 
6 eqnbox(p1, p2, lu)
7 {
8 	float b, h;
9 	char *sh;
10 	extern char *IRspace;
11 
12 	yyval = p1;
13 	b = max(ebase[p1], ebase[p2]);
14 	eht[yyval] = h = b + max(eht[p1]-ebase[p1],
15 		eht[p2]-ebase[p2]);
16 	ebase[yyval] = b;
17 	dprintf(".\tS%d <- %d %d; b=%g, h=%g\n", yyval, p1, p2, b, h);
18 	if (rfont[p1] == ITAL && lfont[p2] == ROM)
19 		sh = IRspace;	/* was \| */
20 	else
21 		sh = "";
22 	if (lu) {
23 		printf(".nr %d \\w'\\*(%d%s'\n", p1, p1, sh);
24 		printf(".ds %d \\h'|\\n(09u-\\n(%du'\\*(%d\n", p1, p1, p1);
25 	}
26 	printf(".as %d \"%s\\*(%d\n", yyval, sh, p2);
27 	rfont[p1] = rfont[p2];
28 	sfree(p2);
29 }
30