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Move tbl output from plain stdio to mandoc terminal output routines.
This fixes (1) all escape sequences and (2) some aspects of indentation.
Table column widths are still way off, though.
"move forward" deraadt@

/*	$Id: tbl_data.c,v 1.2 2010/10/15 21:33:47 schwarze Exp $ */
/*
 * Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
 *
 * 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 <sys/queue.h>
#include <sys/types.h>

#include <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>

#include "out.h"
#include "term.h"
#include "tbl_extern.h"

/* FIXME: warn about losing data contents if cell is HORIZ. */

static	int		data(struct tbl *, struct tbl_span *, 
				const char *, int, int, 
				const char *, int, int);


int
data(struct tbl *tbl, struct tbl_span *dp, 
		const char *f, int ln, int pos, 
		const char *p, int start, int end)
{
	struct tbl_data	*dat;

	if (NULL == (dat = tbl_data_alloc(dp)))
		return(0);

	if (NULL == dat->cell)
		if ( ! tbl_warnx(tbl, ERR_SYNTAX, f, ln, pos))
			return(0);

	assert(end >= start);
	if (NULL == (dat->string = malloc((size_t)(end - start + 1))))
		return(tbl_err(tbl));

	(void)memcpy(dat->string, &p[start], (size_t)(end - start));
	dat->string[end - start] = 0;

	/* XXX: do the strcmps, then malloc(). */

	if ( ! strcmp(dat->string, "_"))
		dat->flags |= TBL_DATA_HORIZ;
	else if ( ! strcmp(dat->string, "="))
		dat->flags |= TBL_DATA_DHORIZ;
	else if ( ! strcmp(dat->string, "\\_"))
		dat->flags |= TBL_DATA_NHORIZ;
	else if ( ! strcmp(dat->string, "\\="))
		dat->flags |= TBL_DATA_NDHORIZ;
	else
		return(1);

	free(dat->string);
	dat->string = NULL;
	return(1);
}


int
tbl_data(struct tbl *tbl, const char *f, int ln, const char *p)
{
	struct tbl_span	*dp;
	int		 i, j;

	if (0 == p[0])
		return(tbl_errx(tbl, ERR_SYNTAX, f, ln, 0));

	if ('.' == p[0] && ! isdigit((u_char)p[1])) {
		/*
		 * XXX: departs from tbl convention in that we disallow
		 * macros in the data body.
		 */
		if (strncasecmp(p, ".T&", 3)) 
			return(tbl_errx(tbl, ERR_SYNTAX, f, ln, 0));
		return(tbl_data_close(tbl, f, ln));
	}

	if (NULL == (dp = tbl_span_alloc(tbl)))
		return(0);

	if ( ! strcmp(p, "_")) {
		dp->flags |= TBL_SPAN_HORIZ;
		return(1);
	} else if ( ! strcmp(p, "=")) {
		dp->flags |= TBL_SPAN_DHORIZ;
		return(1);
	}

	for (j = i = 0; p[i]; i++) {
		if (p[i] != tbl->tab)
			continue;
		if ( ! data(tbl, dp, f, ln, i, p, j, i))
			return(0);
		j = i + 1;
	}

	return(data(tbl, dp, f, ln, i, p, j, i));
}


int
tbl_data_close(struct tbl *tbl, const char *f, int ln)
{
	struct tbl_span	*span;

	/* LINTED */
	span = TAILQ_LAST(&tbl->span, tbl_spanh);
	if (NULL == span)
		return(tbl_errx(tbl, ERR_SYNTAX, f, ln, 0));
	if (TAILQ_NEXT(span->row, entries))
		return(tbl_errx(tbl, ERR_SYNTAX, f, ln, 0));

	tbl->part = TBL_PART_LAYOUT;
	return(1);
}