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File: [cvsweb.bsd.lv] / mandoc / tbl_html.c (download)

Revision 1.13, Tue Oct 14 02:16:06 2014 UTC (6 years, 8 months ago) by schwarze
Branch: MAIN
CVS Tags: VERSION_1_13_2
Changes since 1.12: +2 -2 lines

Rudimentary implementation of the e, x, and z table layout modifiers
to equalize, maximize, and ignore the width of columns.
Does not yet take vertical rulers into account,
and does not do line breaks within table cells.
Considerably improves the lftp(1) manual; issue noticed by sthen@.

/*	$Id: tbl_html.c,v 1.13 2014/10/14 02:16:06 schwarze Exp $ */
/*
 * Copyright (c) 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 "config.h"

#include <sys/types.h>

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

#include "mandoc.h"
#include "out.h"
#include "html.h"

static	void	 html_tblopen(struct html *, const struct tbl_span *);
static	size_t	 html_tbl_len(size_t, void *);
static	size_t	 html_tbl_strlen(const char *, void *);


static size_t
html_tbl_len(size_t sz, void *arg)
{

	return(sz);
}

static size_t
html_tbl_strlen(const char *p, void *arg)
{

	return(strlen(p));
}

static void
html_tblopen(struct html *h, const struct tbl_span *sp)
{
	const struct tbl_head *hp;
	struct htmlpair	 tag;
	struct roffsu	 su;
	struct roffcol	*col;

	if (TBL_SPAN_FIRST & sp->flags) {
		h->tbl.len = html_tbl_len;
		h->tbl.slen = html_tbl_strlen;
		tblcalc(&h->tbl, sp, 0);
	}

	assert(NULL == h->tblt);
	PAIR_CLASS_INIT(&tag, "tbl");
	h->tblt = print_otag(h, TAG_TABLE, 1, &tag);

	for (hp = sp->head; hp; hp = hp->next) {
		bufinit(h);
		col = &h->tbl.cols[hp->ident];
		SCALE_HS_INIT(&su, col->width);
		bufcat_su(h, "width", &su);
		PAIR_STYLE_INIT(&tag, h);
		print_otag(h, TAG_COL, 1, &tag);
	}

	print_otag(h, TAG_TBODY, 0, NULL);
}

void
print_tblclose(struct html *h)
{

	assert(h->tblt);
	print_tagq(h, h->tblt);
	h->tblt = NULL;
}

void
print_tbl(struct html *h, const struct tbl_span *sp)
{
	const struct tbl_head *hp;
	const struct tbl_dat *dp;
	struct htmlpair	 tag;
	struct tag	*tt;

	/* Inhibit printing of spaces: we do padding ourselves. */

	if (NULL == h->tblt)
		html_tblopen(h, sp);

	assert(h->tblt);

	h->flags |= HTML_NONOSPACE;
	h->flags |= HTML_NOSPACE;

	tt = print_otag(h, TAG_TR, 0, NULL);

	switch (sp->pos) {
	case TBL_SPAN_HORIZ:
		/* FALLTHROUGH */
	case TBL_SPAN_DHORIZ:
		PAIR_INIT(&tag, ATTR_COLSPAN, "0");
		print_otag(h, TAG_TD, 1, &tag);
		break;
	default:
		dp = sp->first;
		for (hp = sp->head; hp; hp = hp->next) {
			print_stagq(h, tt);
			print_otag(h, TAG_TD, 0, NULL);

			if (NULL == dp)
				break;
			if (TBL_CELL_DOWN != dp->layout->pos)
				if (dp->string)
					print_text(h, dp->string);
			dp = dp->next;
		}
		break;
	}

	print_tagq(h, tt);

	h->flags &= ~HTML_NONOSPACE;

	if (TBL_SPAN_LAST & sp->flags) {
		assert(h->tbl.cols);
		free(h->tbl.cols);
		h->tbl.cols = NULL;
		print_tblclose(h);
	}

}