xref: /illumos-gate/usr/src/cmd/tbl/t6.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
2 /*	  All Rights Reserved  	*/
3 
4 
5 /*
6  * Copyright (c) 1980 Regents of the University of California.
7  * All rights reserved. The Berkeley software License Agreement
8  * specifies the terms and conditions for redistribution.
9  */
10 
11 /*
12  * Copyright (c) 1983, 1984 1985, 1986, 1987, 1988, Sun Microsystems, Inc.
13  * All Rights Reserved.
14  */
15 
16 #ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.1	*/
17 
18  /* t6.c: compute tab stops */
19 # define tx(a) (a>(char *)0 && a<(char *)128)
20 # include "t..c"
21 maktab()
22 {
23 # define FN(i,c) font[stynum[i]][c]
24 # define SZ(i,c) csize[stynum[i]][c]
25 /* define the tab stops of the table */
26 int icol, ilin, tsep, k, ik, vforml, il, text;
27 int doubled[MAXCOL], acase[MAXCOL];
28 char *s;
29 for(icol=0; icol <ncol; icol++)
30 	{
31 	doubled[icol] = acase[icol] = 0;
32 	fprintf(tabout, ".nr %d 0\n", icol+CRIGHT);
33    for(text=0; text<2; text++)
34 	{
35 	if (text)
36 		fprintf(tabout, ".%02d\n.rm %02d\n", icol+80, icol+80);
37 	for(ilin=0; ilin<nlin; ilin++)
38 		{
39 		if (instead[ilin]|| fullbot[ilin]) continue;
40 		vforml=ilin;
41 		for(il=prev(ilin); il>=0 && vspen(table[il][icol].col); il=prev(il))
42 			vforml=il;
43 		if (fspan(vforml,icol)) continue;
44 		if (filler(table[ilin][icol].col)) continue;
45 		switch(ctype(vforml,icol))
46 			{
47 			case 'a':
48 				acase[icol]=1;
49 				s = table[ilin][icol].col;
50 				if (s>(char *)0 && s<(char *)128 && text)
51 					{
52 					if (doubled[icol]==0)
53 						fprintf(tabout, ".nr %d 0\n.nr %d 0\n",S1,S2);
54 					doubled[icol]=1;
55 					fprintf(tabout, ".if \\n(%c->\\n(%d .nr %d \\n(%c-\n",s,S2,S2,s);
56 					}
57 			case 'n':
58 				if (table[ilin][icol].rcol!=0)
59 					{
60 					if (doubled[icol]==0 && text==0)
61 						fprintf(tabout, ".nr %d 0\n.nr %d 0\n", S1, S2);
62 					doubled[icol]=1;
63 					if (real(s=table[ilin][icol].col) && !vspen(s))
64 						{
65 						if (tx(s) != text) continue;
66 						fprintf(tabout, ".nr %d ", TMP);
67 						wide(s, FN(vforml,icol), SZ(vforml,icol)); fprintf(tabout, "\n");
68 						fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n", S1, TMP, S1, TMP);
69 						}
70 					if (text==0 && real(s=table[ilin][icol].rcol) && !vspen(s) && !barent(s))
71 						{
72 						fprintf(tabout, ".nr %d \\w%c%s%c\n",TMP, F1, s, F1);
73 						fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n",S2,TMP,S2,TMP);
74 						}
75 					continue;
76 					}
77 			case 'r':
78 			case 'c':
79 			case 'l':
80 				if (real(s=table[ilin][icol].col) && !vspen(s))
81 					{
82 					if (tx(s) != text) continue;
83 					fprintf(tabout, ".nr %d ", TMP);
84 					wide(s, FN(vforml,icol), SZ(vforml,icol)); fprintf(tabout, "\n");
85 					fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n", icol+CRIGHT, TMP, icol+CRIGHT, TMP);
86 					}
87 			}
88 		}
89 		}
90 	if (acase[icol])
91 		{
92 		fprintf(tabout, ".if \\n(%d>=\\n(%d .nr %d \\n(%du+2n\n",S2,icol+CRIGHT,icol+CRIGHT,S2);
93 		}
94 	if (doubled[icol])
95 		{
96 		fprintf(tabout, ".nr %d \\n(%d\n", icol+CMID, S1);
97 		fprintf(tabout, ".nr %d \\n(%d+\\n(%d\n",TMP,icol+CMID,S2);
98 		fprintf(tabout, ".if \\n(%d>\\n(%d .nr %d \\n(%d\n",TMP,icol+CRIGHT,icol+CRIGHT,TMP);
99 		fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d +(\\n(%d-\\n(%d)/2\n",TMP,icol+CRIGHT,icol+CMID,icol+CRIGHT,TMP);
100 		}
101 	if (cll[icol][0])
102 		{
103 		fprintf(tabout, ".nr %d %sn\n", TMP, cll[icol]);
104 		fprintf(tabout, ".if \\n(%d<\\n(%d .nr %d \\n(%d\n",icol+CRIGHT, TMP, icol+CRIGHT, TMP);
105 		}
106 	for(ilin=0; ilin<nlin; ilin++)
107 	if (k=lspan(ilin, icol))
108 		{
109 		s=table[ilin][icol-k].col;
110 		if (!real(s) || barent(s) || vspen(s) ) continue;
111 		fprintf(tabout, ".nr %d ", TMP);
112 		wide(table[ilin][icol-k].col, FN(ilin,icol-k), SZ(ilin,icol-k));
113 		for(ik=k; ik>=0; ik--)
114 			{
115 			fprintf(tabout, "-\\n(%d",CRIGHT+icol-ik);
116 			if (!expflg && ik>0) fprintf(tabout, "-%dn", sep[icol-ik]);
117 			}
118 		fprintf(tabout, "\n");
119 		fprintf(tabout, ".if \\n(%d>0 .nr %d \\n(%d/%d\n", TMP, TMP, TMP, k);
120 		fprintf(tabout, ".if \\n(%d<0 .nr %d 0\n", TMP, TMP);
121 		for(ik=0; ik<k; ik++)
122 			{
123 			if (doubled[icol-k+ik])
124 				fprintf(tabout, ".nr %d +\\n(%d/2\n", icol-k+ik+CMID, TMP);
125 			fprintf(tabout, ".nr %d +\\n(%d\n", icol-k+ik+CRIGHT, TMP);
126 			}
127 		}
128 	}
129 if (textflg) untext();
130 /* if even requested, make all columns widest width */
131 # define TMP1 S1
132 # define TMP2 S2
133 if (evenflg)
134 	{
135 	fprintf(tabout, ".nr %d 0\n", TMP);
136 	for(icol=0; icol<ncol; icol++)
137 		{
138 		if (evenup[icol]==0) continue;
139 		fprintf(tabout, ".if \\n(%d>\\n(%d .nr %d \\n(%d\n",
140 		icol+CRIGHT, TMP, TMP, icol+CRIGHT);
141 		}
142 	for(icol=0; icol<ncol; icol++)
143 		{
144 		if (evenup[icol]==0)
145 			/* if column not evened just retain old interval */
146 			continue;
147 		if (doubled[icol])
148 			fprintf(tabout, ".nr %d (100*\\n(%d/\\n(%d)*\\n(%d/100\n",
149 				icol+CMID, icol+CMID, icol+CRIGHT, TMP);
150 				/* that nonsense with the 100's and parens tries
151 				   to avoid overflow while proportionally shifting
152 				   the middle of the number */
153 		fprintf(tabout, ".nr %d \\n(%d\n", icol+CRIGHT, TMP);
154 		}
155 	}
156 /* now adjust for total table width */
157 for(tsep=icol=0; icol<ncol; icol++)
158 	tsep+= sep[icol];
159 if (expflg)
160 	{
161 	fprintf(tabout, ".nr %d 0", TMP);
162 	for(icol=0; icol<ncol; icol++)
163 		fprintf(tabout, "+\\n(%d", icol+CRIGHT);
164 	fprintf(tabout, "\n");
165 	fprintf(tabout, ".nr %d \\n(.l-\\n(.i-\\n(%d\n", TMP, TMP);
166 	if (boxflg || dboxflg || allflg)
167 		tsep += 1;
168 	else
169 		tsep -= sep[ncol-1];
170 	fprintf(tabout, ".nr %d \\n(%d/%d\n", TMP, TMP,  tsep);
171 	fprintf(tabout, ".if \\n(%d<1n .nr %d 1n\n", TMP, TMP);
172 	}
173 else
174 	fprintf(tabout, ".nr %d 1n\n", TMP);
175 fprintf(tabout, ".nr %d 0\n",CRIGHT-1);
176 tsep= (boxflg || allflg || dboxflg || left1flg) ? 1 : 0;
177 for(icol=0; icol<ncol; icol++)
178 	{
179 	fprintf(tabout, ".nr %d \\n(%d+(%d*\\n(%d)\n",icol+CLEFT, icol+CRIGHT-1, tsep, TMP);
180 	fprintf(tabout, ".nr %d +\\n(%d\n",icol+CRIGHT, icol+CLEFT);
181 	if (doubled[icol])
182 		{
183 		/* the next line is last-ditch effort to avoid zero field width */
184 		/*fprintf(tabout, ".if \\n(%d=0 .nr %d 1\n",icol+CMID, icol+CMID);*/
185 		fprintf(tabout, ".nr %d +\\n(%d\n", icol+CMID, icol+CLEFT);
186 	/*  fprintf(tabout, ".if n .if \\n(%d%%24>0 .nr %d +12u\n",icol+CMID, icol+CMID); */
187 		}
188 	tsep=sep[icol];
189 	}
190 if (rightl)
191 	fprintf(tabout, ".nr %d (\\n(%d+\\n(%d)/2\n",ncol+CRIGHT-1, ncol+CLEFT-1, ncol+CRIGHT-2);
192 fprintf(tabout, ".nr TW \\n(%d\n", ncol+CRIGHT-1);
193 if (boxflg || allflg || dboxflg)
194 	fprintf(tabout, ".nr TW +%d*\\n(%d\n", sep[ncol-1], TMP);
195 fprintf(tabout,
196  ".if t .if \\n(TW>\\n(.li .tm Table at line %d file %s is too wide - \\n(TW units\n", iline-1, ifile);
197 return;
198 }
199 wide(s, fn, size)
200 	char *s, *size, *fn;
201 {
202 if (point(s))
203 	{
204 	fprintf(tabout, "\\w%c", F1);
205 	if (*fn>0) putfont(fn);
206 	if (*size) putsize(size);
207 	fprintf(tabout, "%s", s);
208 	if (*fn>0) putfont("P");
209 	if (*size) putsize("0");
210 	fprintf(tabout, "%c",F1);
211 	}
212 else
213 	fprintf(tabout, "\\n(%c-", s);
214 }
215 filler(s)
216 	char *s;
217 {
218 return (point(s) && s[0]=='\\' && s[1] == 'R');
219 }
220