/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include "e.h" void eqnbox(int p1, int p2, int lu){	double b, h;	char *sh;	extern char *IRspace; 	yyval = p1;	b = max(ebase[p1], ebase[p2]);	eht[yyval] = h = b + max(eht[p1]-ebase[p1], 		eht[p2]-ebase[p2]);	ebase[yyval] = b;	dprintf(".\tS%d <- %d %d; b=%g, h=%g\n", yyval, p1, p2, b, h);	sh = pad(class[rclass[p1]][lclass[p2]]);	if (lu) {		printf(".nr %d \\w'\\*(%d%s'\n", p1, p1, sh);		printf(".ds %d \\h'|\\n(09u-\\n(%du'\\*(%d\n", p1, p1, p1);	}	printf(".as %d \"%s\\*(%d\n", yyval, sh, p2);	rfont[p1] = rfont[p2];	rclass[p1] = rclass[p2];	sfree(p2);}