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/* $Id: tbl_data.c,v 1.6 2011/01/16 01:11:50 schwarze Exp $ */
/*
* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
*
* 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 <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "mandoc.h"
#include "libmandoc.h"
#include "libroff.h"
static int data(struct tbl_node *, struct tbl_span *,
int, const char *, int *);
static int
data(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 and vertical lines to data formats, since
* we want to match data with data layout cells in the header.
*/
while (cp && (TBL_CELL_VERT == cp->pos ||
TBL_CELL_DVERT == cp->pos ||
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) {
TBL_MSG(tbl, MANDOCERR_TBLEXTRADAT, ln, *pos);
/* 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(0);
}
dat->string = mandoc_malloc(*pos - sv + 1);
memcpy(dat->string, &p[sv], *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)
TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, sv);
return(1);
}
/* ARGSUSED */
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(data(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);
strlcat(dat->string, " ", sz);
strlcat(dat->string, p, sz);
} else
dat->string = mandoc_strdup(p);
if (TBL_CELL_DOWN == dat->layout->pos)
TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, pos);
return(0);
}
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]) {
TBL_MSG(tbl, MANDOCERR_TBL, ln, pos);
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)
rp = tbl->last_span->layout->next;
else
rp = tbl->last_span->layout;
if (NULL == rp)
rp = tbl->last_span->layout;
} else
rp = tbl->first_row;
assert(rp);
dp = mandoc_calloc(1, sizeof(struct tbl_span));
dp->tbl = &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;
dp->flags |= TBL_SPAN_FIRST;
}
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 ( ! data(tbl, dp, ln, p, &pos))
return(0);
return(1);
}
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