xref: /illumos-gate/usr/src/cmd/tbl/t7.c (revision 77889f88de304cc448614fdeea6fe6c189350319)
1 /*
2  * Copyright 1998 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 /* t7.c: control to write table entries */
16 # include "t..c"
17 # define realsplit ((ct=='a'||ct=='n') && table[ldata][c].rcol)
18 
19 void	need(void);
20 void	deftail(void);
21 
22 void
23 runout(void)
24 {
25 int i;
26 if (boxflg || allflg || dboxflg) need();
27 if (ctrflg)
28 	{
29 	fprintf(tabout, ".nr #I \\n(.i\n");
30 	fprintf(tabout, ".in +(\\n(.lu-\\n(TWu-\\n(.iu)/2u\n");
31 	}
32 fprintf(tabout, ".fc %c %c\n", F1, F2);
33 fprintf(tabout, ".nr #T 0-1\n");
34 deftail();
35 for(i=0; i<nlin; i++)
36 	putline(i,i);
37 if (leftover)
38 	yetmore();
39 fprintf(tabout, ".fc\n");
40 fprintf(tabout, ".nr T. 1\n");
41 fprintf(tabout, ".T# 1\n");
42 if (ctrflg)
43 	fprintf(tabout, ".in \\n(#Iu\n");
44 }
45 
46 void
47 runtabs(int lform, int ldata)
48 {
49 int c, ct, vforml, lf;
50 fprintf(tabout, ".ta ");
51 for(c=0; c<ncol; c++)
52 	{
53 	vforml=lform;
54 	for(lf=prev(lform); lf>=0 && vspen(table[lf][c].col); lf=prev(lf))
55 		vforml=lf;
56 	if (fspan(vforml,c))
57 		continue;
58 	switch(ct=ctype(vforml,c))
59 		{
60 		case 'n':
61 		case 'a':
62 			if (table[ldata][c].rcol)
63 			  if (lused[c]) /*Zero field width*/
64 				fprintf(tabout, "\\n(%du ",c+CMID);
65 		case 'c':
66 		case 'l':
67 		case 'r':
68 			if (realsplit? rused[c]: (used[c]+lused[c]))
69 				fprintf(tabout, "\\n(%du ",c+CRIGHT);
70 			continue;
71 		case 's':
72 			if (lspan(lform, c))
73 				fprintf(tabout, "\\n(%du ", c+CRIGHT);
74 			continue;
75 		}
76 	}
77 fprintf(tabout, "\n");
78 }
79 
80 int
81 ifline(char *s)
82 {
83 if (!point(s)) return(0);
84 if (s[0] == '\\') s++;
85 if (s[1] ) return(0);
86 if (s[0] == '_') return('-');
87 if (s[0] == '=') return('=');
88 return(0);
89 }
90 
91 void
92 need(void)
93 {
94 	int texlin, horlin, i;
95 
96 	for(texlin = horlin = i = 0; i < nlin; i++) {
97 		if (allh(i))
98 			horlin++;
99 		else if (instead[i] != 0)
100 			continue;
101 		else
102 			texlin++;
103 	}
104 	(void) fprintf(tabout, ".ne %dv+%dp\n", texlin, 2 * horlin);
105 	/*
106 	 * For nroff runs, we need to reserve space for the full height of the
107 	 * horizontal rules.  If we don't reserve sufficient height, we'll have
108 	 * problems trying to draw the vertical lines across the page boundary.
109 	 */
110 	(void) fprintf(tabout, ".if n .ne %dv\n", 2 * texlin + 2 * horlin + 2);
111 }
112 
113 void
114 deftail(void)
115 {
116 int i, c, lf, lwid;
117 for(i=0; i<MAXHEAD; i++)
118 	if (linestop[i])
119 		fprintf(tabout, ".nr #%c 0-1\n", linestop[i]+'a'-1);
120 fprintf(tabout, ".nr #a 0-1\n");
121 fprintf(tabout, ".eo\n");
122 fprintf(tabout, ".de T#\n");
123 fprintf(tabout, ".ds #d .d\n");
124 fprintf(tabout, ".if \\(ts\\n(.z\\(ts\\(ts .ds #d nl\n");
125 	fprintf(tabout, ".mk ##\n");
126 	fprintf(tabout, ".nr ## -1v\n");
127 	fprintf(tabout, ".ls 1\n");
128 	for(i=0; i<MAXHEAD; i++)
129 		if (linestop[i])
130 			fprintf(tabout, ".if \\n(#T>=0 .nr #%c \\n(#T\n",linestop[i]+'a'-1);
131 if (boxflg || allflg || dboxflg) { /* bottom of table line */
132 	if (!pr1403)
133 		fprintf(tabout, ".if \\n(T. .vs \\n(.vu-\\n(.sp\n");
134 	fprintf(tabout, ".if \\n(T. ");
135 	drawline(nlin,0,ncol, dboxflg ? '=' : '-',1,0);
136 	fprintf(tabout, "\n.if \\n(T. .vs\n");
137 	/* T. is really an argument to a macro but because of
138 		   eqn we don't dare pass it as an argument and reference by $1 */
139 }
140 	for(c=0; c<ncol; c++)
141 		{
142 		if ((lf=left(nlin-1,c, &lwid))>=0)
143 			{
144 			fprintf(tabout, ".if \\n(#%c>=0 .sp -1\n",linestop[lf]+'a'-1);
145 			fprintf(tabout, ".if \\n(#%c>=0 ", linestop[lf]+'a'-1);
146 			tohcol(c);
147 			drawvert(lf, nlin-1, c, lwid);
148 			fprintf(tabout, "\\h'|\\n(TWu'\n");
149 			}
150 		}
151 	if (boxflg || allflg || dboxflg) /* right hand line */
152 		{
153 		fprintf(tabout, ".if \\n(#a>=0 .sp -1\n");
154 		fprintf(tabout, ".if \\n(#a>=0 \\h'|\\n(TWu'");
155 		drawvert (0, nlin-1, ncol, dboxflg? 2 : 1);
156 		fprintf(tabout, "\n");
157 		}
158 fprintf(tabout, ".ls\n");
159 fprintf(tabout, "..\n");
160 fprintf(tabout, ".ec\n");
161 }
162