Ultrix-3.1/src/cmd/tbl/t6.c
/**********************************************************************
* Copyright (c) Digital Equipment Corporation 1984, 1985, 1986. *
* All Rights Reserved. *
* Reference "/usr/src/COPYRIGHT" for applicable restrictions. *
**********************************************************************/
/* SCCSID: @(#)t6.c 3.0 4/22/86 */
/* (SYSTEM 5.0) t6.c 1.1 */
/* t6.c: compute tab stops */
# define tx(a) (a>0 && a<128)
# include "t..c"
maktab()
{
# define FN(i,c) font[c][stynum[i]]
# define SZ(i,c) csize[c][stynum[i]]
/* define the tab stops of the table */
int icol, ilin, tsep, k, ik, vforml, il, text;
char *s;
for(icol=0; icol <ncol; icol++)
{
doubled[icol] = acase[icol] = 0;
fprintf(tabout, ".nr %2s 0\n", reg(icol,CRIGHT));
for(text=0; text<2; text++)
{
if (text)
fprintf(tabout, ".%2s\n.rm %2s\n", reg(icol, CRIGHT), reg(icol, CRIGHT));
for(ilin=0; ilin<nlin; ilin++)
{
if (instead[ilin]|| fullbot[ilin]) continue;
vforml=ilin;
for(il=prev(ilin); il>=0 && vspen(table[il][icol].col); il=prev(il))
vforml=il;
if (fspan(vforml,icol)) continue;
if (filler(table[ilin][icol].col)) continue;
if ((flags[icol][stynum[ilin]] & ZEROW) != 0) continue;
switch(ctype(vforml,icol))
{
case 'a':
acase[icol]=1;
s = table[ilin][icol].col;
if ((int)s>0 && (int)s<128 && text)
{
if (doubled[icol]==0)
fprintf(tabout, ".nr %d 0\n.nr %d 0\n",S1,S2);
doubled[icol]=1;
fprintf(tabout, ".if \\n(%c->\\n(%d .nr %d \\n(%c-\n",s,S2,S2,s);
}
case 'n':
if (table[ilin][icol].rcol!=0)
{
if (doubled[icol]==0 && text==0)
fprintf(tabout, ".nr %d 0\n.nr %d 0\n", S1, S2);
doubled[icol]=1;
if (real(s=table[ilin][icol].col) && !vspen(s))
{
if (tx((int)s) != text) continue;
fprintf(tabout, ".nr %d ", TMP);
wide(s, FN(vforml,icol), SZ(vforml,icol)); fprintf(tabout, "\n");
fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n", S1, TMP, S1, TMP);
}
if (text==0 && real(s=table[ilin][icol].rcol) && !vspen(s) && !barent(s))
{
fprintf(tabout, ".nr %d \\w%c%s%c\n",TMP, F1, s, F1);
fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n",S2,TMP,S2,TMP);
}
continue;
}
case 'r':
case 'c':
case 'l':
if (real(s=table[ilin][icol].col) && !vspen(s))
{
if (tx((int)s) != text) continue;
fprintf(tabout, ".nr %d ", TMP);
wide(s, FN(vforml,icol), SZ(vforml,icol)); fprintf(tabout, "\n");
fprintf(tabout, ".if \\n(%2s<\\n(%d .nr %2s \\n(%d\n", reg(icol,CRIGHT), TMP, reg(icol,CRIGHT), TMP);
}
}
}
}
if (acase[icol])
{
fprintf(tabout, ".if \\n(%d>=\\n(%2s .nr %2s \\n(%du+2n\n",S2,reg(icol,CRIGHT),reg(icol,CRIGHT),S2);
}
if (doubled[icol])
{
fprintf(tabout, ".nr %2s \\n(%d\n", reg(icol,CMID), S1);
fprintf(tabout, ".nr %d \\n(%2s+\\n(%d\n",TMP,reg(icol,CMID),S2);
fprintf(tabout, ".if \\n(%d>\\n(%2s .nr %2s \\n(%d\n",TMP,reg(icol,CRIGHT),reg(icol,CRIGHT),TMP);
fprintf(tabout, ".if \\n(%d<\\n(%2s .nr %2s +(\\n(%2s-\\n(%d)/2\n",TMP,reg(icol,CRIGHT),reg(icol,CMID),reg(icol,CRIGHT),TMP);
}
if (cll[icol][0])
{
fprintf(tabout, ".nr %d %sn\n", TMP, cll[icol]);
fprintf(tabout, ".if \\n(%2s<\\n(%d .nr %2s \\n(%d\n",reg(icol,CRIGHT), TMP, reg(icol,CRIGHT), TMP);
}
for(ilin=0; ilin<nlin; ilin++)
if (k=lspan(ilin, icol))
{
s=table[ilin][icol-k].col;
if (!real(s) || barent(s) || vspen(s) ) continue;
fprintf(tabout, ".nr %d ", TMP);
wide(table[ilin][icol-k].col, FN(ilin,icol-k), SZ(ilin,icol-k));
for(ik=k; ik>=0; ik--)
{
fprintf(tabout, "-\\n(%2s",reg(icol-ik,CRIGHT));
if (!expflg && ik>0) fprintf(tabout, "-%dn", sep[icol-ik]);
}
fprintf(tabout, "\n");
fprintf(tabout, ".if \\n(%d>0 .nr %d \\n(%d/%d\n", TMP, TMP, TMP, k);
fprintf(tabout, ".if \\n(%d<0 .nr %d 0\n", TMP, TMP);
for(ik=1; ik<=k; ik++)
{
if (doubled[icol-k+ik])
fprintf(tabout, ".nr %2s +\\n(%d/2\n", reg(icol-k+ik,CMID), TMP);
fprintf(tabout, ".nr %2s +\\n(%d\n", reg(icol-k+ik,CRIGHT), TMP);
}
}
}
if (textflg) untext();
/* if even requested, make all columns widest width */
# define TMP1 S1
# define TMP2 S2
if (evenflg)
{
fprintf(tabout, ".nr %d 0\n", TMP);
for(icol=0; icol<ncol; icol++)
{
if (evenup[icol]==0) continue;
fprintf(tabout, ".if \\n(%2s>\\n(%d .nr %d \\n(%2s\n",
reg(icol,CRIGHT), TMP, TMP, reg(icol,CRIGHT));
}
for(icol=0; icol<ncol; icol++)
{
if (evenup[icol]==0)
/* if column not evened just retain old interval */
continue;
if (doubled[icol])
fprintf(tabout, ".nr %2s (100*\\n(%2s/\\n(%2s)*\\n(%d/100\n",
reg(icol,CMID), reg(icol,CMID), reg(icol,CRIGHT), TMP);
/* that nonsense with the 100's and parens tries
to avoid overflow while proportionally shifting
the middle of the number */
fprintf(tabout, ".nr %2s \\n(%d\n", reg(icol,CRIGHT), TMP);
}
}
/* now adjust for total table width */
for(tsep=icol=0; icol<ncol; icol++)
tsep+= sep[icol];
if (expflg)
{
fprintf(tabout, ".nr %d 0", TMP);
for(icol=0; icol<ncol; icol++)
fprintf(tabout, "+\\n(%2s", reg(icol,CRIGHT));
fprintf(tabout, "\n");
fprintf(tabout, ".nr %d \\n(.l-\\n(%d\n", TMP, TMP);
if (boxflg || dboxflg || allflg)
/* tsep += 1; */ ;
else
tsep -= sep[ncol-1];
fprintf(tabout, ".nr %d \\n(%d/%d\n", TMP, TMP, tsep);
fprintf(tabout, ".if \\n(%d<0 .nr %d 0\n", TMP, TMP);
}
else
fprintf(tabout, ".nr %d 1n\n", TMP);
fprintf(tabout, ".nr %2s 0\n",reg(-1, CRIGHT));
tsep= (boxflg || allflg || dboxflg || left1flg) ? 2 : 0;
if (sep[-1] >= 0) tsep = sep[-1];
for(icol=0; icol<ncol; icol++)
{
fprintf(tabout, ".nr %2s \\n(%2s+((%d*\\n(%d)/2)\n",reg(icol,CLEFT), reg(icol-1,CRIGHT), tsep, TMP);
fprintf(tabout, ".nr %2s +\\n(%2s\n",reg(icol,CRIGHT), reg(icol,CLEFT));
if (doubled[icol])
{
/* the next line is last-ditch effort to avoid zero field width */
/*fprintf(tabout, ".if \\n(%2s=0 .nr %2s 1\n",reg(icol,CMID), reg(icol,CMID));*/
fprintf(tabout, ".nr %2s +\\n(%2s\n", reg(icol,CMID), reg(icol,CLEFT));
/* fprintf(tabout, ".if n .if \\n(%s%%24>0 .nr %s +12u\n",reg(icol,CMID), reg(icol,CMID)); */
}
tsep=sep[icol]*2;
}
if (rightl)
fprintf(tabout, ".nr %s (\\n(%s+\\n(%s)/2\n",reg(ncol-1, CRIGHT), reg(ncol-1,CLEFT), reg(ncol-2,CRIGHT));
fprintf(tabout, ".nr TW \\n(%2s\n", reg(ncol-1, CRIGHT));
tsep = sep[ncol-1];
if (boxflg || allflg || dboxflg)
fprintf(tabout, ".nr TW +((%d*\\n(%d)/2)\n", tsep, TMP);
fprintf(tabout,
".if t .if (\\n(TW+\\n(.o)>7.65i .tm Table at line %d file %s is too wide - \\n(TW units\n", iline-1, ifile);
return;
}
wide(s, fn, size)
char *s, *size, *fn;
{
if (point(s))
{
fprintf(tabout, "\\w%c", F1);
if (*fn>0) putfont(fn);
if (*size) putsize(size);
fprintf(tabout, "%s", s);
if (*fn>0) putfont("P");
if (*size) putsize("0");
fprintf(tabout, "%c",F1);
}
else
fprintf(tabout, "\\n(%c-", s);
}
filler(s)
char *s;
{
return (point(s) && s[0]=='\\' && s[1] == 'R');
}