1 /* $Id: tbl_data.c,v 1.27 2013/06/01 04:56:50 schwarze Exp $ */
3 * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2011 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.
29 #include "libmandoc.h"
32 static int data(struct tbl_node *, struct tbl_span *,
33 int, const char *, int *);
34 static struct tbl_span *newspan(struct tbl_node *, int,
38 data(struct tbl_node *tbl, struct tbl_span *dp,
39 int ln, const char *p, int *pos)
46 if (dp->last && dp->last->layout)
47 cp = dp->last->layout->next;
48 else if (NULL == dp->last)
49 cp = dp->layout->first;
52 * Skip over spanners, since
53 * we want to match data with data layout cells in the header.
56 while (cp && TBL_CELL_SPAN == cp->pos)
60 * Stop processing when we reach the end of the available layout
61 * cells. This means that we have extra input.
65 mandoc_msg(MANDOCERR_TBLEXTRADAT,
66 tbl->parse, ln, *pos, NULL);
67 /* Skip to the end... */
73 dat = mandoc_calloc(1, sizeof(struct tbl_dat));
75 dat->pos = TBL_DATA_NONE;
77 assert(TBL_CELL_SPAN != cp->pos);
79 for (spans = 0, cp = cp->next; cp; cp = cp->next)
80 if (TBL_CELL_SPAN == cp->pos)
91 dp->last = dp->first = dat;
94 while (p[*pos] && p[*pos] != tbl->opts.tab)
98 * Check for a continued-data scope opening. This consists of a
99 * trailing `T{' at the end of the line. Subsequent lines,
100 * until a standalone `T}', are included in our cell.
103 if (*pos - sv == 2 && 'T' == p[sv] && '{' == p[sv + 1]) {
104 tbl->part = TBL_PART_CDATA;
108 assert(*pos - sv >= 0);
110 dat->string = mandoc_malloc((size_t)(*pos - sv + 1));
111 memcpy(dat->string, &p[sv], (size_t)(*pos - sv));
112 dat->string[*pos - sv] = '\0';
117 if ( ! strcmp(dat->string, "_"))
118 dat->pos = TBL_DATA_HORIZ;
119 else if ( ! strcmp(dat->string, "="))
120 dat->pos = TBL_DATA_DHORIZ;
121 else if ( ! strcmp(dat->string, "\\_"))
122 dat->pos = TBL_DATA_NHORIZ;
123 else if ( ! strcmp(dat->string, "\\="))
124 dat->pos = TBL_DATA_NDHORIZ;
126 dat->pos = TBL_DATA_DATA;
128 if (TBL_CELL_HORIZ == dat->layout->pos ||
129 TBL_CELL_DHORIZ == dat->layout->pos ||
130 TBL_CELL_DOWN == dat->layout->pos)
131 if (TBL_DATA_DATA == dat->pos && '\0' != *dat->string)
132 mandoc_msg(MANDOCERR_TBLIGNDATA,
133 tbl->parse, ln, sv, NULL);
140 tbl_cdata(struct tbl_node *tbl, int ln, const char *p)
148 dat = tbl->last_span->last;
150 if (p[pos] == 'T' && p[pos + 1] == '}') {
152 if (p[pos] == tbl->opts.tab) {
153 tbl->part = TBL_PART_DATA;
155 return(data(tbl, tbl->last_span, ln, p, &pos));
156 } else if ('\0' == p[pos]) {
157 tbl->part = TBL_PART_DATA;
161 /* Fallthrough: T} is part of a word. */
164 dat->pos = TBL_DATA_DATA;
167 sz = strlen(p) + strlen(dat->string) + 2;
168 dat->string = mandoc_realloc(dat->string, sz);
169 strlcat(dat->string, " ", sz);
170 strlcat(dat->string, p, sz);
172 dat->string = mandoc_strdup(p);
174 if (TBL_CELL_DOWN == dat->layout->pos)
175 mandoc_msg(MANDOCERR_TBLIGNDATA,
176 tbl->parse, ln, pos, NULL);
181 static struct tbl_span *
182 newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
186 dp = mandoc_calloc(1, sizeof(struct tbl_span));
188 dp->opts = &tbl->opts;
190 dp->head = tbl->first_head;
192 if (tbl->last_span) {
193 tbl->last_span->next = dp;
196 tbl->last_span = tbl->first_span = dp;
197 tbl->current_span = NULL;
198 dp->flags |= TBL_SPAN_FIRST;
205 tbl_data(struct tbl_node *tbl, int ln, const char *p)
213 if ('\0' == p[pos]) {
214 mandoc_msg(MANDOCERR_TBL, tbl->parse, ln, pos, NULL);
219 * Choose a layout row: take the one following the last parsed
220 * span's. If that doesn't exist, use the last parsed span's.
221 * If there's no last parsed span, use the first row. Lastly,
222 * if the last span was a horizontal line, use the same layout
223 * (it doesn't "consume" the layout).
226 if (tbl->last_span) {
227 assert(tbl->last_span->layout);
228 if (tbl->last_span->pos == TBL_SPAN_DATA) {
229 for (rp = tbl->last_span->layout->next;
230 rp && rp->first; rp = rp->next) {
231 switch (rp->first->pos) {
232 case (TBL_CELL_HORIZ):
233 dp = newspan(tbl, ln, rp);
234 dp->pos = TBL_SPAN_HORIZ;
236 case (TBL_CELL_DHORIZ):
237 dp = newspan(tbl, ln, rp);
238 dp->pos = TBL_SPAN_DHORIZ;
246 rp = tbl->last_span->layout;
249 rp = tbl->last_span->layout;
255 dp = newspan(tbl, ln, rp);
257 if ( ! strcmp(p, "_")) {
258 dp->pos = TBL_SPAN_HORIZ;
260 } else if ( ! strcmp(p, "=")) {
261 dp->pos = TBL_SPAN_DHORIZ;
265 dp->pos = TBL_SPAN_DATA;
267 /* This returns 0 when TBL_PART_CDATA is entered. */
269 while ('\0' != p[pos])
270 if ( ! data(tbl, dp, ln, p, &pos))