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 #include "e.h" 16 17 void 18 eqnbox(int p1, int p2, int lu) 19 { 20 int b, h; 21 char *sh; 22 23 yyval = p1; 24 b = max(ebase[p1], ebase[p2]); 25 eht[yyval] = h = b + max(eht[p1]-ebase[p1], eht[p2]-ebase[p2]); 26 ebase[yyval] = b; 27 if (dbg) 28 printf(".\te:eb: S%d <- S%d S%d; b=%d, h=%d\n", 29 yyval, p1, p2, b, h); 30 if (rfont[p1] == ITAL && lfont[p2] == ROM) 31 sh = "\\|"; 32 else 33 sh = ""; 34 if (lu) { 35 printf(".nr %d \\w'\\s%d\\*(%d%s'\n", p1, ps, p1, sh); 36 printf(".ds %d \\h'|\\n(97u-\\n(%du'\\*(%d\n", p1, p1, p1); 37 } 38 printf(".as %d \"%s\\*(%d\n", yyval, sh, p2); 39 rfont[p1] = rfont[p2]; 40 ofree(p2); 41 } 42