/* $Id$ */
/*
* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "mandoc.h"
#include "mandoc_aux.h"
#include "libmandoc.h"
#include "libroff.h"
static int getdata(struct tbl_node *, struct tbl_span *,
int, const char *, int *);
static struct tbl_span *newspan(struct tbl_node *, int,
struct tbl_row *);
static int
getdata(struct tbl_node *tbl, struct tbl_span *dp,
int ln, const char *p, int *pos)
{
struct tbl_dat *dat;
struct tbl_cell *cp;
int sv, spans;
cp = NULL;
if (dp->last && dp->last->layout)
cp = dp->last->layout->next;
else if (NULL == dp->last)
cp = dp->layout->first;
/*
* Skip over spanners, since
* we want to match data with data layout cells in the header.
*/
while (cp && TBL_CELL_SPAN == cp->pos)
cp = cp->next;
/*
* Stop processing when we reach the end of the available layout
* cells. This means that we have extra input.
*/
if (NULL == cp) {
mandoc_msg(MANDOCERR_TBLEXTRADAT, tbl->parse,
ln, *pos, NULL);
/* Skip to the end... */
while (p[*pos])
(*pos)++;
return(1);
}
dat = mandoc_calloc(1, sizeof(struct tbl_dat));
dat->layout = cp;
dat->pos = TBL_DATA_NONE;
assert(TBL_CELL_SPAN != cp->pos);
for (spans = 0, cp = cp->next; cp; cp = cp->next)
if (TBL_CELL_SPAN == cp->pos)
spans++;
else
break;
dat->spans = spans;
if (dp->last) {
dp->last->next = dat;
dp->last = dat;
} else
dp->last = dp->first = dat;
sv = *pos;
while (p[*pos] && p[*pos] != tbl->opts.tab)
(*pos)++;
/*
* Check for a continued-data scope opening. This consists of a
* trailing `T{' at the end of the line. Subsequent lines,
* until a standalone `T}', are included in our cell.
*/
if (*pos - sv == 2 && 'T' == p[sv] && '{' == p[sv + 1]) {
tbl->part = TBL_PART_CDATA;
return(1);
}
assert(*pos - sv >= 0);
dat->string = mandoc_malloc((size_t)(*pos - sv + 1));
memcpy(dat->string, &p[sv], (size_t)(*pos - sv));
dat->string[*pos - sv] = '\0';
if (p[*pos])
(*pos)++;
if ( ! strcmp(dat->string, "_"))
dat->pos = TBL_DATA_HORIZ;
else if ( ! strcmp(dat->string, "="))
dat->pos = TBL_DATA_DHORIZ;
else if ( ! strcmp(dat->string, "\\_"))
dat->pos = TBL_DATA_NHORIZ;
else if ( ! strcmp(dat->string, "\\="))
dat->pos = TBL_DATA_NDHORIZ;
else
dat->pos = TBL_DATA_DATA;
if (TBL_CELL_HORIZ == dat->layout->pos ||
TBL_CELL_DHORIZ == dat->layout->pos ||
TBL_CELL_DOWN == dat->layout->pos)
if (TBL_DATA_DATA == dat->pos && '\0' != *dat->string)
mandoc_msg(MANDOCERR_TBLIGNDATA,
tbl->parse, ln, sv, NULL);
return(1);
}
int
tbl_cdata(struct tbl_node *tbl, int ln, const char *p)
{
struct tbl_dat *dat;
size_t sz;
int pos;
pos = 0;
dat = tbl->last_span->last;
if (p[pos] == 'T' && p[pos + 1] == '}') {
pos += 2;
if (p[pos] == tbl->opts.tab) {
tbl->part = TBL_PART_DATA;
pos++;
return(getdata(tbl, tbl->last_span, ln, p, &pos));
} else if ('\0' == p[pos]) {
tbl->part = TBL_PART_DATA;
return(1);
}
/* Fallthrough: T} is part of a word. */
}
dat->pos = TBL_DATA_DATA;
if (dat->string) {
sz = strlen(p) + strlen(dat->string) + 2;
dat->string = mandoc_realloc(dat->string, sz);
(void)strlcat(dat->string, " ", sz);
(void)strlcat(dat->string, p, sz);
} else
dat->string = mandoc_strdup(p);
if (TBL_CELL_DOWN == dat->layout->pos)
mandoc_msg(MANDOCERR_TBLIGNDATA, tbl->parse,
ln, pos, NULL);
return(0);
}
static struct tbl_span *
newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
{
struct tbl_span *dp;
dp = mandoc_calloc(1, sizeof(struct tbl_span));
dp->line = line;
dp->opts = &tbl->opts;
dp->layout = rp;
dp->head = tbl->first_head;
if (tbl->last_span) {
tbl->last_span->next = dp;
tbl->last_span = dp;
} else {
tbl->last_span = tbl->first_span = dp;
tbl->current_span = NULL;
dp->flags |= TBL_SPAN_FIRST;
}
return(dp);
}
int
tbl_data(struct tbl_node *tbl, int ln, const char *p)
{
struct tbl_span *dp;
struct tbl_row *rp;
int pos;
pos = 0;
if ('\0' == p[pos]) {
mandoc_msg(MANDOCERR_TBL, tbl->parse, ln, pos, NULL);
return(0);
}
/*
* Choose a layout row: take the one following the last parsed
* span's. If that doesn't exist, use the last parsed span's.
* If there's no last parsed span, use the first row. Lastly,
* if the last span was a horizontal line, use the same layout
* (it doesn't "consume" the layout).
*/
if (tbl->last_span) {
assert(tbl->last_span->layout);
if (tbl->last_span->pos == TBL_SPAN_DATA) {
for (rp = tbl->last_span->layout->next;
rp && rp->first; rp = rp->next) {
switch (rp->first->pos) {
case TBL_CELL_HORIZ:
dp = newspan(tbl, ln, rp);
dp->pos = TBL_SPAN_HORIZ;
continue;
case TBL_CELL_DHORIZ:
dp = newspan(tbl, ln, rp);
dp->pos = TBL_SPAN_DHORIZ;
continue;
default:
break;
}
break;
}
} else
rp = tbl->last_span->layout;
if (NULL == rp)
rp = tbl->last_span->layout;
} else
rp = tbl->first_row;
assert(rp);
dp = newspan(tbl, ln, rp);
if ( ! strcmp(p, "_")) {
dp->pos = TBL_SPAN_HORIZ;
return(1);
} else if ( ! strcmp(p, "=")) {
dp->pos = TBL_SPAN_DHORIZ;
return(1);
}
dp->pos = TBL_SPAN_DATA;
/* This returns 0 when TBL_PART_CDATA is entered. */
while ('\0' != p[pos])
if ( ! getdata(tbl, dp, ln, p, &pos))
return(0);
return(1);
}
