startcol(int type) /* mark start of column in lp[] array */

#include "e.h"

startcol(int type) /* mark start of column in lp[] array */
{
int oct = ct;

lp[ct++] = type;
lp[ct++] = 0; /* count, to come */
lp[ct++] = 0; /* separation, to come */
return oct;
}

void column(int oct, int sep) /* remember end of column that started at lp[oct] */
{
int i, type;

lp[oct+1] = ct - oct - 3;
lp[oct+2] = sep;
type = lp[oct];
if (dbg) {
printf(".\t%d column of", type);
for (i = oct+3; i < ct; i++ )
printf(" S%d", lp[i]);
printf(", rows=%d, sep=%d\n", lp[oct+1], lp[oct+2]);
}
}

void matrix(int oct) /* matrix is list of columns */
{
int nrow, ncol, i, j, k, val[100];
double b, hb;
char *space;
extern char *Matspace;

space = Matspace; /* between columns of matrix */
nrow = lp[oct+1]; /* disaster if rows inconsistent */
/* also assumes just columns */
/* fix when add other things */
ncol = 0;
for (i = oct+1; i < ct; i += lp[i]+3 ) {
ncol++;
dprintf(".\tcolct=%d\n", lp[i]);
}
for (k=1; k <= nrow; k++) {
hb = b = 0;
j = oct + k + 2;
for (i=0; i < ncol; i++) {
hb = max(hb, eht[lp[j]]-ebase[lp[j]]);
b = max(b, ebase[lp[j]]);
j += nrow + 3;
}
dprintf(".\trow %d: b=%g, hb=%g\n", k, b, hb);
j = oct + k + 2;
for (i=0; i<ncol; i++) {
ebase[lp[j]] = b;
eht[lp[j]] = b + hb;
j += nrow + 3;
}
}
j = oct;
for (i=0; i<ncol; i++) {
pile(j);
val[i] = yyval;
j += nrow + 3;
}
yyval = salloc();
eht[yyval] = eht[val[0]];
ebase[yyval] = ebase[val[0]];
lfont[yyval] = rfont[yyval] = 0;
dprintf(".\tmatrix S%d: r=%d, c=%d, h=%g, b=%g\n",
yyval,nrow,ncol,eht[yyval],ebase[yyval]);
printf(".ds %d \"", yyval);
for( i=0; i<ncol; i++ ) {
printf("\\*(%d%s", val[i], i==ncol-1 ? "" : space);
sfree(val[i]);
}
printf("\n");
}