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
19void
20column(int type, int p1)
21{
22	int i;
23
24	lp[p1] = ct - p1 - 1;
25	if (dbg) {
26		printf(".\t%d column of", type);
27		for (i = p1 + 1; i < ct; i++)
28			printf(" S%d", lp[i]);
29		printf(", rows=%d\n", lp[p1]);
30	}
31	lp[ct++] = type;
32}
33
34void
35matrix(int p1)
36{
37	int nrow, ncol, i, j, k, hb, b, val[100];
38	char *space;
39
40	space = "\\ \\ ";
41	nrow = lp[p1];	/* disaster if rows inconsistent */
42	ncol = 0;
43	for (i = p1; i < ct; i += lp[i] + 2) {
44		ncol++;
45		if (dbg) printf(".\tcolct=%d\n", lp[i]);
46	}
47	for (k = 1; k <= nrow; k++) {
48		hb = b = 0;
49		j = p1 + k;
50		for (i = 0; i < ncol; i++) {
51			hb = max(hb, eht[lp[j]]-ebase[lp[j]]);
52			b = max(b, ebase[lp[j]]);
53			j += nrow + 2;
54		}
55		if (dbg) printf(".\trow %d: b=%d, hb=%d\n", k, b, hb);
56		j = p1 + k;
57		for (i = 0; i < ncol; i++) {
58			ebase[lp[j]] = b;
59			eht[lp[j]] = b + hb;
60			j += nrow + 2;
61		}
62	}
63	j = p1;
64	for (i = 0; i < ncol; i++) {
65		lpile(lp[j+lp[j]+1], j+1, j+lp[j]+1);
66		val[i] = yyval;
67		j += nrow + 2;
68	}
69	yyval = oalloc();
70	eht[yyval] = eht[val[0]];
71	ebase[yyval] = ebase[val[0]];
72	lfont[yyval] = rfont[yyval] = 0;
73	if (dbg)
74		printf(".\tmatrix S%d: r=%d, c=%d, h=%d, b=%d\n",
75		    yyval, nrow, ncol, eht[yyval], ebase[yyval]);
76	printf(".ds %d \"", yyval);
77	for (i = 0; i < ncol; i++) {
78		printf("\\*(%d%s", val[i], i == ncol-1 ? "" : space);
79		ofree(val[i]);
80	}
81	printf("\n");
82	ct = p1;
83}
84