1 #include "e.h"
2 
3 int
4 startcol(int type)	/* mark start of column in lp[] array */
5 {
6 	int oct = ct;
7 
8 	lp[ct++] = type;
9 	lp[ct++] = 0;	/* count, to come */
10 	lp[ct++] = 0;	/* separation, to come */
11 	return oct;
12 }
13 
14 void column(int oct, int sep)	/* remember end of column that started at lp[oct] */
15 {
16 	int i, type;
17 
18 	lp[oct+1] = ct - oct - 3;
19 	lp[oct+2] = sep;
20 	type = lp[oct];
21 	if (dbg) {
22 		printf(".\t%d column of", type);
23 		for (i = oct+3; i < ct; i++ )
24 			printf(" S%d", lp[i]);
25 		printf(", rows=%d, sep=%d\n", lp[oct+1], lp[oct+2]);
26 	}
27 }
28 
29 void matrix(int oct)	/* matrix is list of columns */
30 {
31 	int nrow, ncol, i, j, k, val[100];
32 	double b, hb;
33 	char *space;
34 	extern char *Matspace;
35 
36 	space = Matspace;	/* between columns of matrix */
37 	nrow = lp[oct+1];	/* disaster if rows inconsistent */
38 				/* also assumes just columns */
39 				/* fix when add other things */
40 	ncol = 0;
41 	for (i = oct+1; i < ct; i += lp[i]+3 ) {
42 		ncol++;
43 		dprintf(".\tcolct=%d\n", lp[i]);
44 	}
45 	for (k=1; k <= nrow; k++) {
46 		hb = b = 0;
47 		j = oct + k + 2;
48 		for (i=0; i < ncol; i++) {
49 			hb = max(hb, eht[lp[j]]-ebase[lp[j]]);
50 			b = max(b, ebase[lp[j]]);
51 			j += nrow + 3;
52 		}
53 		dprintf(".\trow %d: b=%g, hb=%g\n", k, b, hb);
54 		j = oct + k + 2;
55 		for (i=0; i<ncol; i++) {
56 			ebase[lp[j]] = b;
57 			eht[lp[j]] = b + hb;
58 			j += nrow + 3;
59 		}
60 	}
61 	j = oct;
62 	for (i=0; i<ncol; i++) {
63 		pile(j);
64 		val[i] = yyval;
65 		j += nrow + 3;
66 	}
67 	yyval = salloc();
68 	eht[yyval] = eht[val[0]];
69 	ebase[yyval] = ebase[val[0]];
70 	lfont[yyval] = rfont[yyval] = 0;
71 	dprintf(".\tmatrix S%d: r=%d, c=%d, h=%g, b=%g\n",
72 		(int)yyval,nrow,ncol,eht[yyval],ebase[yyval]);
73 	printf(".ds %d \"", (int)yyval);
74 	for( i=0; i<ncol; i++ )  {
75 		printf("\\*(%d%s", val[i], i==ncol-1 ? "" : space);
76 		sfree(val[i]);
77 	}
78 	printf("\n");
79 }