1/*	$Id: tbl.c,v 1.46 2018/12/14 06:33:14 schwarze Exp $ */
2/*
3 * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2011, 2015 Ingo Schwarze <schwarze@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18#include "config.h"
19
20#include <sys/types.h>
21
22#include <assert.h>
23#include <stdio.h>
24#include <stdlib.h>
25#include <string.h>
26#include <time.h>
27
28#include "mandoc_aux.h"
29#include "mandoc.h"
30#include "tbl.h"
31#include "libmandoc.h"
32#include "tbl_parse.h"
33#include "tbl_int.h"
34
35
36void
37tbl_read(struct tbl_node *tbl, int ln, const char *p, int pos)
38{
39	const char	*cp;
40	int		 active;
41
42	/*
43	 * In the options section, proceed to the layout section
44	 * after a semicolon, or right away if there is no semicolon.
45	 * Ignore semicolons in arguments.
46	 */
47
48	if (tbl->part == TBL_PART_OPTS) {
49		tbl->part = TBL_PART_LAYOUT;
50		active = 1;
51		for (cp = p + pos; *cp != '\0'; cp++) {
52			switch (*cp) {
53			case '(':
54				active = 0;
55				continue;
56			case ')':
57				active = 1;
58				continue;
59			case ';':
60				if (active)
61					break;
62				continue;
63			default:
64				continue;
65			}
66			break;
67		}
68		if (*cp == ';') {
69			tbl_option(tbl, ln, p, &pos);
70			if (p[pos] == '\0')
71				return;
72		}
73	}
74
75	/* Process the other section types.  */
76
77	switch (tbl->part) {
78	case TBL_PART_LAYOUT:
79		tbl_layout(tbl, ln, p, pos);
80		break;
81	case TBL_PART_CDATA:
82		tbl_cdata(tbl, ln, p, pos);
83		break;
84	default:
85		tbl_data(tbl, ln, p, pos);
86		break;
87	}
88}
89
90struct tbl_node *
91tbl_alloc(int pos, int line, struct tbl_node *last_tbl)
92{
93	struct tbl_node	*tbl;
94
95	tbl = mandoc_calloc(1, sizeof(*tbl));
96	if (last_tbl != NULL)
97		last_tbl->next = tbl;
98	tbl->line = line;
99	tbl->pos = pos;
100	tbl->part = TBL_PART_OPTS;
101	tbl->opts.tab = '\t';
102	tbl->opts.decimal = '.';
103	return tbl;
104}
105
106void
107tbl_free(struct tbl_node *tbl)
108{
109	struct tbl_node	*old_tbl;
110	struct tbl_row	*rp;
111	struct tbl_cell	*cp;
112	struct tbl_span	*sp;
113	struct tbl_dat	*dp;
114
115	while (tbl != NULL) {
116		while ((rp = tbl->first_row) != NULL) {
117			tbl->first_row = rp->next;
118			while (rp->first != NULL) {
119				cp = rp->first;
120				rp->first = cp->next;
121				free(cp->wstr);
122				free(cp);
123			}
124			free(rp);
125		}
126		while ((sp = tbl->first_span) != NULL) {
127			tbl->first_span = sp->next;
128			while (sp->first != NULL) {
129				dp = sp->first;
130				sp->first = dp->next;
131				free(dp->string);
132				free(dp);
133			}
134			free(sp);
135		}
136		old_tbl = tbl;
137		tbl = tbl->next;
138		free(old_tbl);
139	}
140}
141
142void
143tbl_restart(int line, int pos, struct tbl_node *tbl)
144{
145	if (tbl->part == TBL_PART_CDATA)
146		mandoc_msg(MANDOCERR_TBLDATA_BLK, line, pos, "T&");
147
148	tbl->part = TBL_PART_LAYOUT;
149	tbl->line = line;
150	tbl->pos = pos;
151}
152
153struct tbl_span *
154tbl_span(struct tbl_node *tbl)
155{
156	struct tbl_span	 *span;
157
158	span = tbl->current_span ? tbl->current_span->next
159				 : tbl->first_span;
160	if (span != NULL)
161		tbl->current_span = span;
162	return span;
163}
164
165int
166tbl_end(struct tbl_node *tbl, int still_open)
167{
168	struct tbl_span *sp;
169
170	if (still_open)
171		mandoc_msg(MANDOCERR_BLK_NOEND, tbl->line, tbl->pos, "TS");
172	else if (tbl->part == TBL_PART_CDATA)
173		mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->line, tbl->pos, "TE");
174
175	sp = tbl->first_span;
176	while (sp != NULL && sp->first == NULL)
177		sp = sp->next;
178	if (sp == NULL) {
179		mandoc_msg(MANDOCERR_TBLDATA_NONE, tbl->line, tbl->pos, NULL);
180		return 0;
181	}
182	return 1;
183}
184