t7.c revision b55148877d473978f0b46d593fd6213fa526fcc5
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#pragma ident	"%Z%%M%	%I%	%E% SMI"
16
17/* t7.c: control to write table entries */
18# include "t..c"
19# define realsplit ((ct=='a'||ct=='n') && table[ldata][c].rcol)
20
21void	need(void);
22void	deftail(void);
23
24void
25runout(void)
26{
27int i;
28if (boxflg || allflg || dboxflg) need();
29if (ctrflg)
30	{
31	fprintf(tabout, ".nr #I \\n(.i\n");
32	fprintf(tabout, ".in +(\\n(.lu-\\n(TWu-\\n(.iu)/2u\n");
33	}
34fprintf(tabout, ".fc %c %c\n", F1, F2);
35fprintf(tabout, ".nr #T 0-1\n");
36deftail();
37for(i=0; i<nlin; i++)
38	putline(i,i);
39if (leftover)
40	yetmore();
41fprintf(tabout, ".fc\n");
42fprintf(tabout, ".nr T. 1\n");
43fprintf(tabout, ".T# 1\n");
44if (ctrflg)
45	fprintf(tabout, ".in \\n(#Iu\n");
46}
47
48void
49runtabs(int lform, int ldata)
50{
51int c, ct, vforml, lf;
52fprintf(tabout, ".ta ");
53for(c=0; c<ncol; c++)
54	{
55	vforml=lform;
56	for(lf=prev(lform); lf>=0 && vspen(table[lf][c].col); lf=prev(lf))
57		vforml=lf;
58	if (fspan(vforml,c))
59		continue;
60	switch(ct=ctype(vforml,c))
61		{
62		case 'n':
63		case 'a':
64			if (table[ldata][c].rcol)
65			  if (lused[c]) /*Zero field width*/
66				fprintf(tabout, "\\n(%du ",c+CMID);
67		case 'c':
68		case 'l':
69		case 'r':
70		    if (realsplit? rused[c]: (used[c]+lused[c]))
71			fprintf(tabout, "\\n(%du ",c+CRIGHT);
72			continue;
73		case 's':
74			if (lspan(lform, c))
75				fprintf(tabout, "\\n(%du ", c+CRIGHT);
76			continue;
77		}
78	}
79fprintf(tabout, "\n");
80}
81
82int
83ifline(char *s)
84{
85if (!point(s)) return(0);
86if (s[0] == '\\') s++;
87if (s[1] ) return(0);
88if (s[0] == '_') return('-');
89if (s[0] == '=') return('=');
90return(0);
91}
92
93void
94need(void)
95{
96	int texlin, horlin, i;
97
98	for(texlin = horlin = i = 0; i < nlin; i++) {
99		if (allh(i))
100			horlin++;
101		else if (instead[i] != 0)
102			continue;
103		else
104			texlin++;
105	}
106	(void) fprintf(tabout, ".ne %dv+%dp\n", texlin, 2 * horlin);
107	/*
108	 * For nroff runs, we need to reserve space for the full height of the
109	 * horizontal rules.  If we don't reserve sufficient height, we'll have
110	 * problems trying to draw the vertical lines across the page boundary.
111	 */
112	(void) fprintf(tabout, ".if n .ne %dv\n", 2 * texlin + 2 * horlin + 2);
113}
114
115void
116deftail(void)
117{
118int i, c, lf, lwid;
119for(i=0; i<MAXHEAD; i++)
120	if (linestop[i])
121		fprintf(tabout, ".nr #%c 0-1\n", linestop[i]+'a'-1);
122fprintf(tabout, ".nr #a 0-1\n");
123fprintf(tabout, ".eo\n");
124fprintf(tabout, ".de T#\n");
125fprintf(tabout, ".ds #d .d\n");
126fprintf(tabout, ".if \\(ts\\n(.z\\(ts\\(ts .ds #d nl\n");
127	fprintf(tabout, ".mk ##\n");
128	fprintf(tabout, ".nr ## -1v\n");
129	fprintf(tabout, ".ls 1\n");
130	for(i=0; i<MAXHEAD; i++)
131		if (linestop[i])
132			fprintf(tabout, ".if \\n(#T>=0 .nr #%c \\n(#T\n",linestop[i]+'a'-1);
133if (boxflg || allflg || dboxflg) { /* bottom of table line */
134	if (!pr1403)
135		fprintf(tabout, ".if \\n(T. .vs \\n(.vu-\\n(.sp\n");
136	fprintf(tabout, ".if \\n(T. ");
137	drawline(nlin,0,ncol, dboxflg ? '=' : '-',1,0);
138	fprintf(tabout, "\n.if \\n(T. .vs\n");
139	/* T. is really an argument to a macro but because of
140		   eqn we don't dare pass it as an argument and reference by $1 */
141}
142	for(c=0; c<ncol; c++)
143		{
144		if ((lf=left(nlin-1,c, &lwid))>=0)
145			{
146			fprintf(tabout, ".if \\n(#%c>=0 .sp -1\n",linestop[lf]+'a'-1);
147			fprintf(tabout, ".if \\n(#%c>=0 ", linestop[lf]+'a'-1);
148			tohcol(c);
149			drawvert(lf, nlin-1, c, lwid);
150			fprintf(tabout, "\\h'|\\n(TWu'\n");
151			}
152		}
153	if (boxflg || allflg || dboxflg) /* right hand line */
154		{
155		fprintf(tabout, ".if \\n(#a>=0 .sp -1\n");
156		fprintf(tabout, ".if \\n(#a>=0 \\h'|\\n(TWu'");
157		drawvert (0, nlin-1, ncol, dboxflg? 2 : 1);
158		fprintf(tabout, "\n");
159		}
160fprintf(tabout, ".ls\n");
161fprintf(tabout, "..\n");
162fprintf(tabout, ".ec\n");
163}
164