1 /* $Id: tbl_data.c,v 1.39 2015/01/30 17:32:16 schwarze Exp $ */
3 * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2011, 2015 Ingo Schwarze <schwarze@openbsd.org>
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.
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.
20 #include <sys/types.h>
29 #include "mandoc_aux.h"
30 #include "libmandoc.h"
33 static void getdata(struct tbl_node *, struct tbl_span *,
34 int, const char *, int *);
35 static struct tbl_span *newspan(struct tbl_node *, int,
40 getdata(struct tbl_node *tbl, struct tbl_span *dp,
41 int ln, const char *p, int *pos)
47 /* Advance to the next layout cell, skipping spanners. */
49 cp = dp->last == NULL ? dp->layout->first : dp->last->layout->next;
50 while (cp != NULL && cp->pos == TBL_CELL_SPAN)
54 * Stop processing when we reach the end of the available layout
55 * cells. This means that we have extra input.
59 mandoc_msg(MANDOCERR_TBLDATA_EXTRA, tbl->parse,
61 /* Skip to the end... */
67 dat = mandoc_calloc(1, sizeof(*dat));
69 dat->pos = TBL_DATA_NONE;
71 for (cp = cp->next; cp != NULL; cp = cp->next)
72 if (cp->pos == TBL_CELL_SPAN)
84 while (p[*pos] && p[*pos] != tbl->opts.tab)
88 * Check for a continued-data scope opening. This consists of a
89 * trailing `T{' at the end of the line. Subsequent lines,
90 * until a standalone `T}', are included in our cell.
93 if (*pos - sv == 2 && p[sv] == 'T' && p[sv + 1] == '{') {
94 tbl->part = TBL_PART_CDATA;
98 dat->string = mandoc_strndup(p + sv, *pos - sv);
103 if ( ! strcmp(dat->string, "_"))
104 dat->pos = TBL_DATA_HORIZ;
105 else if ( ! strcmp(dat->string, "="))
106 dat->pos = TBL_DATA_DHORIZ;
107 else if ( ! strcmp(dat->string, "\\_"))
108 dat->pos = TBL_DATA_NHORIZ;
109 else if ( ! strcmp(dat->string, "\\="))
110 dat->pos = TBL_DATA_NDHORIZ;
112 dat->pos = TBL_DATA_DATA;
114 if ((dat->layout->pos == TBL_CELL_HORIZ ||
115 dat->layout->pos == TBL_CELL_DHORIZ ||
116 dat->layout->pos == TBL_CELL_DOWN) &&
117 dat->pos == TBL_DATA_DATA && *dat->string != '\0')
118 mandoc_msg(MANDOCERR_TBLDATA_SPAN,
119 tbl->parse, ln, sv, dat->string);
123 tbl_cdata(struct tbl_node *tbl, int ln, const char *p, int pos)
128 dat = tbl->last_span->last;
130 if (p[pos] == 'T' && p[pos + 1] == '}') {
132 if (p[pos] == tbl->opts.tab) {
133 tbl->part = TBL_PART_DATA;
135 getdata(tbl, tbl->last_span, ln, p, &pos);
137 } else if (p[pos] == '\0') {
138 tbl->part = TBL_PART_DATA;
142 /* Fallthrough: T} is part of a word. */
145 dat->pos = TBL_DATA_DATA;
147 if (dat->string != NULL) {
148 sz = strlen(p + pos) + strlen(dat->string) + 2;
149 dat->string = mandoc_realloc(dat->string, sz);
150 (void)strlcat(dat->string, " ", sz);
151 (void)strlcat(dat->string, p + pos, sz);
153 dat->string = mandoc_strdup(p + pos);
155 if (dat->layout->pos == TBL_CELL_DOWN)
156 mandoc_msg(MANDOCERR_TBLDATA_SPAN, tbl->parse,
157 ln, pos, dat->string);
162 static struct tbl_span *
163 newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
167 dp = mandoc_calloc(1, sizeof(*dp));
169 dp->opts = &tbl->opts;
171 dp->prev = tbl->last_span;
173 if (dp->prev == NULL) {
174 tbl->first_span = dp;
175 tbl->current_span = NULL;
184 tbl_data(struct tbl_node *tbl, int ln, const char *p, int pos)
190 * Choose a layout row: take the one following the last parsed
191 * span's. If that doesn't exist, use the last parsed span's.
192 * If there's no last parsed span, use the first row. Lastly,
193 * if the last span was a horizontal line, use the same layout
194 * (it doesn't "consume" the layout).
197 if (tbl->last_span != NULL) {
198 if (tbl->last_span->pos == TBL_SPAN_DATA) {
199 for (rp = tbl->last_span->layout->next;
200 rp != NULL && rp->first != NULL;
202 switch (rp->first->pos) {
204 dp = newspan(tbl, ln, rp);
205 dp->pos = TBL_SPAN_HORIZ;
207 case TBL_CELL_DHORIZ:
208 dp = newspan(tbl, ln, rp);
209 dp->pos = TBL_SPAN_DHORIZ;
217 rp = tbl->last_span->layout;
220 rp = tbl->last_span->layout;
226 dp = newspan(tbl, ln, rp);
228 if ( ! strcmp(p, "_")) {
229 dp->pos = TBL_SPAN_HORIZ;
231 } else if ( ! strcmp(p, "=")) {
232 dp->pos = TBL_SPAN_DHORIZ;
236 dp->pos = TBL_SPAN_DATA;
238 while (p[pos] != '\0')
239 getdata(tbl, dp, ln, p, &pos);